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logo Calflora  Illustrated Plant List 

2405 PLANTS
Abies amabilis    Lovely fir,  Pacific silver fir,  Cretan Mallow
rare native
Tree

PINACEAE

Abies amabilis
© 2016 Dana York
Abies amabilis
© 2021 Scot Loring
Abies amabilis
© 2022 Dana York

Abies bracteata    Bristlecone fir,  Santa lucia fir
rare native
Tree

PINACEAE

Abies bracteata
© 2014 Dan Cohn
Abies bracteata
© 2019 Susan McDougall
Abies bracteata
© 2019 Scott Yarger

Abies lasiocarpa var. lasiocarpa    Alpine fir,  Subalpine fir
rare native
Tree

PINACEAE

Abies lasiocarpa var. lasiocarpa
© 2022 Dana York
Abies lasiocarpa var. lasiocarpa
© 2022 Dana York
Abies lasiocarpa var. lasiocarpa
© 2023 Cynthia Powell

Abronia alpina    Ramshaw meadows abronia
rare native
Perennial herb

NYCTAGINACEAE

Abronia alpina
© 2021 Peri lee
Abronia alpina
© 2021 Peri lee
Abronia alpina
© 2021 Peri lee

Abronia maritima    Red sand verbena,  Sticky sand verbena
rare native
Perennial herb

NYCTAGINACEAE

Abronia maritima
© 2018 Ron Vanderhoff
Abronia maritima
© 2022 Irene Rosen
Abronia maritima
© 2020 David Krause

Abronia nana var. covillei    Coville's dwarf sand verbena
rare native
Perennial herb

NYCTAGINACEAE

Abronia nana var. covillei
© 2010 Steve Matson
Abronia nana var. covillei
© 2010 Steve Matson
Abronia nana var. covillei
© 2010 Steve Matson

Abronia umbellata var. breviflora    Pink sand-verbena
rare native
Perennial herb

NYCTAGINACEAE

Abronia umbellata var. breviflora
© 2021 Scot Loring
Abronia umbellata var. breviflora
© 2021 Scot Loring
Abronia umbellata var. breviflora
© 2023 Mary Ann Machi

Abronia villosa var. aurita    Chaparral sand verbena
rare native
Annual herb

NYCTAGINACEAE

Abronia villosa var. aurita
© 2023 Don Rideout
Abronia villosa var. aurita
© 2013 Keir Morse
Abronia villosa var. aurita
© 2024 Erin Bergman

Abutilon abutiloides    shrubby Indian mallow
rare native
Perennial herb

MALVACEAE

Abutilon abutiloides
© 2014 Wynn Anderson
Abutilon abutiloides
© 2014 Wynn Anderson
Abutilon abutiloides
© 2014 Wynn Anderson

Abutilon parvulum    Dwarf indian mallow,  Little abutilon
rare native
Perennial herb

MALVACEAE

Abutilon parvulum
© 2023 Chloe and Trevor Van Loon
Abutilon parvulum
© 2023 Chloe and Trevor Van Loon
Abutilon parvulum
© 2023 Chloe and Trevor Van Loon

Acanthomintha duttonii    San mateo thorn mint
rare native
Annual herb

LAMIACEAE

Acanthomintha duttonii
© 2011 Aaron Schusteff
Acanthomintha duttonii
© 2023 Morgan Stickrod
Acanthomintha duttonii
© 2009 Neal Kramer

Acanthomintha ilicifolia    San Diego thorn mint
rare native
Annual herb

LAMIACEAE

Acanthomintha ilicifolia
© 2023 Eric Koberle
Acanthomintha ilicifolia
© 2023 Eric Koberle
Acanthomintha ilicifolia
© 2023 Keir Morse

Acanthomintha lanceolata    Santa clara thorn mint
rare native
Annual herb

LAMIACEAE

Acanthomintha lanceolata
© 2019 David Greenberger
Acanthomintha lanceolata
© 2022 Mike Russler
Acanthomintha lanceolata
© 2020 Joey Santore

Acanthomintha obovata ssp. cordata    Heart leaved thorn mint,  Heartleaf thorn mint
rare native
Annual herb

LAMIACEAE

Acanthomintha obovata ssp. cordata
© 2020 Robert Ferber
Acanthomintha obovata ssp. cordata
© 2023 Morgan Stickrod
Acanthomintha obovata ssp. cordata
© 2020 Robert Ferber

Acanthomintha obovata ssp. obovata    San Benito thorn mint
rare native
Annual herb

LAMIACEAE

Acanthomintha obovata ssp. obovata
© 2023 Mike Russler
Acanthomintha obovata ssp. obovata
© 2023 Mike Russler
Acanthomintha obovata ssp. obovata
© 2022 Mike Russler

rare native
Annual herb

POLYGONACEAE

Acanthoscyphus parishii var. abramsii
© 2024 Sharon Estrada
Acanthoscyphus parishii var. abramsii
© 2024 Sharon Estrada
Acanthoscyphus parishii var. abramsii
© 2024 Sharon Estrada

Acanthoscyphus parishii var. cienegensis    Cienega seca oxytheca
rare native
Annual herb

POLYGONACEAE

Acanthoscyphus parishii var. cienegensis
© 2018 Keir Morse
Acanthoscyphus parishii var. cienegensis
© 2018 Keir Morse
Acanthoscyphus parishii var. cienegensis
© 2018 Keir Morse

Acanthoscyphus parishii var. goodmaniana    Cushenbury oxytheca
rare native
Annual herb

POLYGONACEAE

Acanthoscyphus parishii var. goodmaniana
© 2017 Thomas Egan
Acanthoscyphus parishii var. goodmaniana
© 2008 Erin Shapiro
Acanthoscyphus parishii var. goodmaniana
© 2008 Erin Shapiro

Acanthoscyphus parishii var. parishii    Parish's oxytheca
rare native
Annual herb

POLYGONACEAE

Acanthoscyphus parishii var. parishii
© 2020 Rico Ramirez
Acanthoscyphus parishii var. parishii
© 2020 Rico Ramirez
Acanthoscyphus parishii var. parishii
© 2020 Rico Ramirez

Acleisanthes longiflora    Angel trumpets,  Angeltrumpet,  Yerba de la rabia
rare native
Perennial herb

NYCTAGINACEAE

Acleisanthes longiflora
© 2013 Richard Spellenberg
Acleisanthes longiflora
© 2017 Wynn Anderson
Acleisanthes longiflora
© 2017 Keir Morse

Acleisanthes nevadensis    Desert wing-fruit
rare native
Perennial herb

NYCTAGINACEAE

Acleisanthes nevadensis
© 2005 James M. Andre
Acleisanthes nevadensis
© 2020 Neal Kramer
Acleisanthes nevadensis
© 2005 James M. Andre

Acmispon argophyllus var. adsurgens    San clemente island bird's-foot trefoil
rare native
Perennial herb

FABACEAE

Acmispon argophyllus var. adsurgens
© 2011 Dylan Neubauer
Acmispon argophyllus var. adsurgens
© 2011 Dylan Neubauer
Acmispon argophyllus var. adsurgens
© 1902 Dylan Neubauer

Acmispon argophyllus var. niveus    Santa cruz island bird's-foot trefoil
rare native
Perennial herb

FABACEAE

Acmispon argophyllus var. niveus
© 2022 Kyle Suchy
Acmispon argophyllus var. niveus
© 2014 Steve Matson
Acmispon argophyllus var. niveus
© 2014 Steve Matson

Acmispon argyraeus var. multicaulis    Canyon Bird's-foot Trefoil,  Scrub Lotus
rare native
Perennial herb

FABACEAE

Acmispon argyraeus var. multicaulis
© 2008 Steve Matson
Acmispon argyraeus var. multicaulis
© 2008 Steve Matson
Acmispon argyraeus var. multicaulis
© 2024 Richard Spjut

Acmispon argyraeus var. notitius    Providence mountains lotus
rare native
Perennial herb

FABACEAE


rare native
Shrub

FABACEAE

Acmispon dendroideus var. dendroideus
© 2020 David Greenberger
Acmispon dendroideus var. dendroideus
© 2025 Ron Vanderhoff
Acmispon dendroideus var. dendroideus
© 2025 Ron Vanderhoff

Acmispon dendroideus var. traskiae    San clemente island lotus
rare native
Shrub

FABACEAE

Acmispon dendroideus var. traskiae
© 2011 Dylan Neubauer
Acmispon dendroideus var. traskiae
© 2011 Dylan Neubauer
Acmispon dendroideus var. traskiae
© 2011 Dylan Neubauer

Acmispon dendroideus var. veatchii    San miguel island deerweed
rare native
Shrub

FABACEAE

Acmispon dendroideus var. veatchii
© 2006 Steve Matson
Acmispon dendroideus var. veatchii
© 2006 Steve Matson
Acmispon dendroideus var. veatchii
© 2006 Steve Matson

Acmispon haydonii    Pygmy lotus
rare native
Perennial herb

FABACEAE

Acmispon haydonii
© 1995 Saint Mary's College of California
Acmispon haydonii
© 1995 Saint Mary's College of California
Acmispon haydonii
© 1995 Saint Mary's College of California

Acmispon prostratus    Nuttall's acmispon
rare native
Annual herb

FABACEAE

Acmispon prostratus
© 2024 Ron Vanderhoff
Acmispon prostratus
© 2024 Ron Vanderhoff
Acmispon prostratus
© 2023 Eric Koberle

Acmispon rubriflorus    Red-flowered bird's-foot trefoil
rare native
Annual herb

FABACEAE

Acmispon rubriflorus
© 2021 R.A. Chasey
Acmispon rubriflorus
© 2021 R.A. Chasey
Acmispon rubriflorus
© 2021 R.A. Chasey

Adiantum shastense    Shasta adiantum
rare native
Fern

PTERIDACEAE

Adiantum shastense
© 2016 Steve Matson
Adiantum shastense
© 2016 Steve Matson
Adiantum shastense
© 2016 Steve Matson

Adolphia californica    California adolphia
rare native
Shrub

RHAMNACEAE

Adolphia californica
© 2024 Eric Koberle
Adolphia californica
© 2024 Eric Koberle
Adolphia californica
© 2023 Matt Berger

Agave shawii var. shawii    Shaw's agave
rare native
Shrub

AGAVACEAE

Agave shawii var. shawii
© 2011 Keir Morse
Agave shawii var. shawii
© 2011 Keir Morse
Agave shawii var. shawii
© 2011 Keir Morse

rare native
Shrub

AGAVACEAE

Agave utahensis var. eborispina
© 2022 Matt Berger
Agave utahensis var. eborispina
© 2022 Matt Berger
Agave utahensis var. eborispina
© 2022 Matt Berger

rare native
Shrub

AGAVACEAE

Agave utahensis var. nevadensis
© 2020 Matt Berger
Agave utahensis var. nevadensis
© 2022 Matt Berger
Agave utahensis var. nevadensis
© 2020 Matt Berger

Ageratina herbacea    Fragrant snakeroot
rare native
Perennial herb

ASTERACEAE

Ageratina herbacea
© 2010 James M. Andre
Ageratina herbacea
© 2012 Keir Morse
Ageratina herbacea
© 2010 James M. Andre

Ageratina shastensis    Shasta ageratina,  Shasta eupatorium
rare native
Perennial herb

ASTERACEAE

Ageratina shastensis
© 2019 Matt Berger
Ageratina shastensis
© 2019 Matt Berger
Ageratina shastensis
© 2019 Matt Berger

Agrostis blasdalei    Blasdale bentgrass,  Blasdale's bent grass
rare native
Perennial grass (rhizomatous)

POACEAE

Agrostis blasdalei
© 2013 James Gonsman
Agrostis blasdalei
© 2022 R.A. Chasey
Agrostis blasdalei
© 2022 R.A. Chasey

Agrostis hendersonii    Henderson's bent grass,  Henderson's bentgrass
rare native
Annual grass

POACEAE

Agrostis hendersonii
© 2005 Steve Matson
Agrostis hendersonii
© 2005 Steve Matson
Agrostis hendersonii
© 2022 Donald Burk

Agrostis hooveri    Hoover's bent grass,  Hoover's bentgrass
rare native
Perennial grass

POACEAE

Agrostis hooveri
© 2008 Adonis (Don) Tate
Agrostis hooveri
© 2017 Adonis (Don) Tate

Agrostis humilis    Mountain bent grass
rare native
Perennial grass

POACEAE

Agrostis humilis
© 2004 Steve Matson
Agrostis humilis
© 2015 Belinda Lo
Agrostis humilis
© 2015 Belinda Lo

Agrostis lacuna-vernalis    Vernal pool bent grass
rare native
Annual grass

POACEAE

Agrostis lacuna-vernalis
© 2022 Irene Rosen
Agrostis lacuna-vernalis
© 2022 Cynthia Powell
Agrostis lacuna-vernalis
© 2022 Irene Rosen

Aliciella ripleyi    Ripley's aliciella
rare native
Perennial herb

POLEMONIACEAE

Aliciella ripleyi
© 2020 Matt Berger
Aliciella ripleyi
© 2020 Matt Berger
Aliciella ripleyi
© 2024 Mike Russler

Aliciella triodon    Coyote gilia
rare native
Annual herb

POLEMONIACEAE

Aliciella triodon
© 2019 Steve Matson
Aliciella triodon
© 2019 Steve Matson
Aliciella triodon
© 2019 Steve Matson

Alisma gramineum    Grass leaf water plantain,  Grasslike waterplantain
rare native
Perennial herb

ALISMATACEAE

Alisma gramineum
© 2012 Robert Carr
Alisma gramineum
© 2012 Robert Carr
Alisma gramineum
© 2012 Robert Carr

Allium abramsii    Abrams' allium,  Abrams' onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium abramsii
© 2024 Ryan O'Dell
Allium abramsii
© 2018 Steve Matson
Allium abramsii
© 2018 Steve Matson

Allium atrorubens var. atrorubens    Darkred onion,  Great basin onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium atrorubens var. atrorubens
© 2010 Steve Matson
Allium atrorubens var. atrorubens
© 2010 Steve Matson
Allium atrorubens var. atrorubens
© 2010 Steve Matson

Allium atrorubens var. cristatum    Crested onion,  Darkred onion,  Wild onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium atrorubens var. cristatum
© 2010 Steve Matson
Allium atrorubens var. cristatum
© 2011 Steve Matson
Allium atrorubens var. cristatum
© 2011 Steve Matson

Allium fimbriatum var. purdyi    Purdy's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium fimbriatum var. purdyi
© 2014 Steve Matson
Allium fimbriatum var. purdyi
© 2014 Steve Matson
Allium fimbriatum var. purdyi
© 2014 Steve Matson

Allium hickmanii    Hickman's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium hickmanii
© 2022 Irene Rosen
Allium hickmanii
© 2021 Mary Conway
Allium hickmanii
© 2022 Irene Rosen

Allium hoffmanii    Beegum onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium hoffmanii
© 2019 Steve Matson
Allium hoffmanii
© 2019 Steve Matson
Allium hoffmanii
© 2019 Steve Matson

Allium howellii var. clokeyi    Clokey's onion,  Mt. pinos onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium howellii var. clokeyi
© 2023 Bryant Baker
Allium howellii var. clokeyi
© 2016 Keir Morse
Allium howellii var. clokeyi
© 2016 Keir Morse

Allium howellii var. howellii    Howell's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium howellii var. howellii
© 2023 R.A. Chasey
Allium howellii var. howellii
© 2023 Mike Russler
Allium howellii var. howellii
© 2019 Matt Berger

Allium howellii var. sanbenitense    San benito onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium howellii var. sanbenitense
© 2023 Ryan O'Dell
Allium howellii var. sanbenitense
© 2024 Ryan O'Dell
Allium howellii var. sanbenitense
© 2024 Ryan O'Dell

Allium jepsonii    Jepson's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium jepsonii
© 2019 David Greenberger
Allium jepsonii
© 2021 David popp
Allium jepsonii
© 2024 David popp

Allium marvinii    Yucaipa onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium marvinii
© 2021 Ron Vanderhoff
Allium marvinii
© 2016 Ron Vanderhoff
Allium marvinii
© 2013 Keir Morse

Allium munzii    Munz's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium munzii
© 2003 Guy Bruyea
Allium munzii
© 2011 Sally Trnka
Allium munzii
© 2011 Sally Trnka

Allium nevadense    Nevada onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium nevadense
© 2023 Dana York
Allium nevadense
© 2012 John Doyen
Allium nevadense
© 2012 John Doyen

Allium parishii    Parish's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium parishii
© 2024 Manzanita Dictionary
Allium parishii
© 2017 Margarita Orlova
Allium parishii
© 2017 richard mcneill

Allium peninsulare var. franciscanum    San francisco bay onion,  San francisco onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium peninsulare var. franciscanum
© 2023 Alice Cummings
Allium peninsulare var. franciscanum
© 2021 Dee Shea Himes
Allium peninsulare var. franciscanum
© 2017 Michelle Bosch

Allium punctum    Dotted onion,  Punctate onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium punctum
© 2012 Gerald Carr
Allium punctum
© 2012 Gerald Carr
Allium punctum
© 2012 Gerald Carr

Allium sanbornii var. congdonii    Congdon's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium sanbornii var. congdonii
© 2023 Mike Russler
Allium sanbornii var. congdonii
© 2023 Mike Russler
Allium sanbornii var. congdonii
© 2023 Mike Russler

Allium sanbornii var. sanbornii    Sanborn's allium,  Sanborn's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium sanbornii var. sanbornii
© 2015 Tim Miller
Allium sanbornii var. sanbornii
© 2019 Matt Berger
Allium sanbornii var. sanbornii
© 2019 Matt Berger

Allium sharsmithiae    Sharsmith's onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium sharsmithiae
© 2020 David Greenberger
Allium sharsmithiae
© 2019 Matt Berger
Allium sharsmithiae
© 2020 David Greenberger

Allium shevockii    Spanish needle onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium shevockii
© 2022 Bob Steele
Allium shevockii
© 2019 Matt Berger
Allium shevockii
© 2020 Bob Steele

Allium siskiyouense    Siskiyou onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium siskiyouense
© 2023 Steve Laymon
Allium siskiyouense
© 2022 Dana York
Allium siskiyouense
© 2023 Dana York

Allium tribracteatum    Three bracted onion,  Threebract onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium tribracteatum
© 2024 Mike Russler
Allium tribracteatum
© 2024 Mike Russler
Allium tribracteatum
© 2023 Mike Russler

Allium tuolumnense    Rawhide hill onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium tuolumnense
© 2024 Mike Russler
Allium tuolumnense
© 2024 Mike Russler
Allium tuolumnense
© 2024 Mike Russler

Allium yosemitense    Yosemite onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium yosemitense
© 2012 Lynn Robertson
Allium yosemitense
© 2010 Barry Breckling
Allium yosemitense
© 2010 Barry Breckling

Almutaster pauciflorus    Alkali marsh aster
rare native
Perennial herb

ASTERACEAE

Almutaster pauciflorus
© 2020 Steve Matson
Almutaster pauciflorus
© 2020 Steve Matson
Almutaster pauciflorus
© 2020 Steve Matson

Alopecurus aequalis var. sonomensis    Sonoma alopecurus,  Sonoma shortawn foxtail
rare native
Perennial grass

POACEAE

Alopecurus aequalis var. sonomensis
© 2001 Doreen L. Smith
Alopecurus aequalis var. sonomensis
© 2013 Vernon Smith
Alopecurus aequalis var. sonomensis
© 2011 2011 Eric Wrubel/NPS

Aloysia wrightii    Oreganillo,  Vera dulce,  Wright lippia
rare native
Shrub

VERBENACEAE

Aloysia wrightii
© 2011 Keir Morse
Aloysia wrightii
© 2011 Keir Morse
Aloysia wrightii
© 2011 Keir Morse

Amaranthus watsonii    Watson's amaranth
rare native
Annual herb

AMARANTHACEAE

Amaranthus watsonii
© 2003 Debra Valov
Amaranthus watsonii
© 2003 Debra Valov
Amaranthus watsonii
© 2004 Debra Valov

Ambrosia chenopodiifolia    San diego bur sage,  San diego bursage
rare native
Shrub

ASTERACEAE

Ambrosia chenopodiifolia
© 2020 Keir Morse
Ambrosia chenopodiifolia
© 2020 Keir Morse
Ambrosia chenopodiifolia
© 2012 Keir Morse

Ambrosia monogyra    Singlewhorl burrobrush
rare native
Shrub

ASTERACEAE

Ambrosia monogyra
© 2021 Ron Vanderhoff
Ambrosia monogyra
© 2017 Ron Vanderhoff
Ambrosia monogyra
© 2020 Ron Vanderhoff

Ambrosia pumila    Ragweed,  San diego ambrosia,  San diego ragweed
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Ambrosia pumila
© 2021 Aaron Echols
Ambrosia pumila
© 2024 Cynthia Powell
Ambrosia pumila
© 2018 Neil Uelman

Amorpha californica var. napensis    Indigo bush,  Napa false indigo
rare native
Shrub

FABACEAE

Amorpha californica var. napensis
© 2023 R.A. Chasey
Amorpha californica var. napensis
© 2015 David Greenberger
Amorpha californica var. napensis
© 2019 Michelle Karle

Amsinckia douglasiana    Douglas' fiddleneck
rare native
Annual herb

BORAGINACEAE

Amsinckia douglasiana
© 2023 Matt Berger
Amsinckia douglasiana
© 2023 Matt Berger
Amsinckia douglasiana
© 2018 Richard Spjut

Amsinckia furcata    Forked fiddleneck
rare native
Annual herb

BORAGINACEAE

Amsinckia furcata
© 2022 R.A. Chasey
Amsinckia furcata
© 2019 Matt Berger
Amsinckia furcata
© 2022 Mike Russler

Amsinckia grandiflora    Large flowered fiddleneck,  Largeflowered fiddleneck
rare native
Annual herb

BORAGINACEAE

Amsinckia grandiflora
© 2017 John Doyen
Amsinckia grandiflora
© 2015 Zoya Akulova
Amsinckia grandiflora
© 2017 John Doyen

Amsinckia lunaris    Bent flowered fiddleneck,  Bentflower fiddleneck
rare native
Annual herb

BORAGINACEAE

Amsinckia lunaris
© 2022 Michael L. Uhler
Amsinckia lunaris
© 2025 R.A. Chasey
Amsinckia lunaris
© 2022 John Rawlings

Ancistrocarphus keilii    Santa ynez groundstar
rare native
Annual herb

ASTERACEAE

Ancistrocarphus keilii
© 2023 Kristen Nelson
Ancistrocarphus keilii
© 2023 Kristen Nelson
Ancistrocarphus keilii
© 2023 Kristen Nelson

Androsace elongata ssp. acuta    California androsace,  California rockjasmine
rare native
Annual herb

PRIMULACEAE

Androsace elongata ssp. acuta
© 2023 Catherine Chang
Androsace elongata ssp. acuta
© 2022 Catherine Chang
Androsace elongata ssp. acuta
© 2023 R.A. Chasey

Androsace filiformis    Slender stemmed androsace
rare native
Annual herb

PRIMULACEAE

Androsace filiformis
© 2015 Gerald Carr
Androsace filiformis
© 2015 Gerald Carr
Androsace filiformis
© 2015 Gerald Carr

Androstephium breviflorum    Pink funnel lily,  Small flowered androstephium
rare native
Perennial herb (bulb)

THEMIDACEAE

Androstephium breviflorum
© 2018 Stephen Hodges
Androstephium breviflorum
© 2024 Andy Chambers
Androstephium breviflorum
© 2024 Andy Chambers

Anemone multifida var. multifida    Pacific anemone
rare native
Perennial herb

RANUNCULACEAE

Anemone multifida var. multifida
© 2022 Dana York
Anemone multifida var. multifida
© 2022 Dana York
Anemone multifida var. multifida
© 2013 Gerald Carr

Angelica callii    Call's angelica
rare native
Perennial herb

APIACEAE

Angelica callii
© 2014 Steve Matson
Angelica callii
© © 2014 Steve Matson
Angelica callii
© 2014 Steve Matson

Angelica kingii    King's angelica
rare native
Perennial herb

APIACEAE

Angelica kingii
© 2015 Steve Matson
Angelica kingii
© 2015 Steve Matson
Angelica kingii
© 2015 Steve Matson

Angelica lucida    Seacoast angelica,  Angelica,  Wild celery
rare native
Perennial herb

APIACEAE

Angelica lucida
© 2017 Steve Matson
Angelica lucida
© 2017 Steve Matson
Angelica lucida
© 2017 Steve Matson

Anisocarpus scabridus    Scabrid alpine tarplant
rare native
Perennial herb

ASTERACEAE

Anisocarpus scabridus
© 2015 Julie A. Kierstead
Anisocarpus scabridus
© 2024 Chloe and Trevor Van Loon
Anisocarpus scabridus
© 2015 Julie A. Kierstead

Anomobryum julaceum    Slender silver moss
rare native
Moss

BRYACEAE

Anomobryum julaceum
© 2018 Scot Loring
Anomobryum julaceum
© 2018 Scot Loring
Anomobryum julaceum
© 2013 Scot Loring

Antennaria flagellaris    Stoloniferous pussy toes,  Stoloniferous pussytoes
rare native
Perennial herb

ASTERACEAE

Antennaria flagellaris
© 2014 Robert L.Carr
Antennaria flagellaris
© 2014 Robert L.Carr
Antennaria flagellaris
© 2000 Robert E. Preston, Ph.D.

Antennaria marginata    White margined pussytoes,  Whitemargin pussytoes
rare native
Perennial herb

ASTERACEAE

Antennaria marginata
© 2010 Duncan S. Bell
Antennaria marginata
© 2010 Duncan S. Bell
Antennaria marginata
© 2009 Duncan S. Bell

Antennaria pulchella    Beautiful pussy toes,  Beautiful pussytoes
rare native
Perennial herb

ASTERACEAE

Antennaria pulchella
© 2014 Steve Matson
Antennaria pulchella
© 2014 Steve Matson
Antennaria pulchella
© 2014 Steve Matson

Antennaria sawyeri    Sawyer's pussy-toes
rare native
Perennial herb

ASTERACEAE

Antennaria sawyeri
© 2014 Julie Kierstead Nelson
Antennaria sawyeri
© 2019 Julie Kierstead Nelson
Antennaria sawyeri
© 2019 Julie Kierstead Nelson

Antennaria suffrutescens    Evergreen everlasting,  Evergreen pussytoes
rare native
Perennial herb

ASTERACEAE

Antennaria suffrutescens
© 2024 Mary Ann Machi
Antennaria suffrutescens
© 2024 Mary Ann Machi
Antennaria suffrutescens
© 2024 Mary Ann Machi

Anthoxanthum nitens ssp. nitens    Vanilla grass
rare native
Perennial grass (rhizomatous)

POACEAE

Anthoxanthum nitens ssp. nitens
© 2018 Matt Berger
Anthoxanthum nitens ssp. nitens
© 2014 Zoya Akulova
Anthoxanthum nitens ssp. nitens
© 2006 Louis-M. Landry

Antirrhinum ovatum    Oval leaved snapdragon
rare native
Annual herb

PLANTAGINACEAE

Antirrhinum ovatum
© 2013 Chris Winchell
Antirrhinum ovatum
© 2013 Chris Winchell
Antirrhinum ovatum
© 2022 Mike Russler

Antirrhinum subcordatum    Dimorphic snapdragon
rare native
Annual herb

PLANTAGINACEAE

Antirrhinum subcordatum
© 2019 Christian Schwarz
Antirrhinum subcordatum
© 2024 Chloe and Trevor Van Loon
Antirrhinum subcordatum
© 2024 Chloe and Trevor Van Loon

Antirrhinum virga    Tall snapdragon
rare native
Perennial herb

PLANTAGINACEAE

Antirrhinum virga
© 2024 R.A. Chasey
Antirrhinum virga
© 2024 Karen Sullivan
Antirrhinum virga
© 2022 Greg Kareofelas

Aphanisma blitoides    Aphanisma
rare native
Annual herb

CHENOPODIACEAE

Aphanisma blitoides
© 2019 Ron Vanderhoff
Aphanisma blitoides
© 2019 Diane Etchison
Aphanisma blitoides
© 2023 Stevie Steele

Aphyllon parishii ssp. brachylobum    Short lobed broom rape
native
Perennial herb (parasitic)

OROBANCHACEAE

Aphyllon parishii ssp. brachylobum
© 2024 Jacob A
Aphyllon parishii ssp. brachylobum
© 2015 Paul Preston
Aphyllon parishii ssp. brachylobum
© 2015 Paul Preston and Tim Lukaszewski

Arabis aculeolata    Waldo rock cress,  Waldo rockcress
rare native
Perennial herb

BRASSICACEAE

Arabis aculeolata
© 2007 Gerald Carr
Arabis aculeolata
© 2011 John Doyen
Arabis aculeolata
© 2023 Dana York

Arabis blepharophylla    Coast rock cress
rare native
Perennial herb

BRASSICACEAE

Arabis blepharophylla
© 2017 Steve Matson
Arabis blepharophylla
© 2017 Steve Matson
Arabis blepharophylla
© 2017 Steve Matson

Arabis mcdonaldiana    Mcdonald's rock cress
rare native
Perennial herb

BRASSICACEAE

Arabis mcdonaldiana
© 2012 Gerald Carr
Arabis mcdonaldiana
© 2012 Gerald Carr
Arabis mcdonaldiana
© 2012 Gerald Carr

Arabis modesta    Modest rock cress
rare native
Perennial herb

BRASSICACEAE

Arabis modesta
© 2024 Dana York
Arabis modesta
© 2024 Dana York
Arabis modesta
© 2012 Gerald Carr

Arabis oregana    Oregon rock cress,  Oregon rockcress
rare native
Perennial herb

BRASSICACEAE

Arabis oregana
© 2012 Gerald Carr
Arabis oregana
© 2012 Gerald Carr
Arabis oregana
© 2012 Gerald Carr

Arabis repanda var. greenei    Greene's rock cress,  Greene's rockcress
rare native
Perennial herb

BRASSICACEAE

Arabis repanda var. greenei
© 2014 Steve Matson
Arabis repanda var. greenei
© 2014 Dana York
Arabis repanda var. greenei
© 2010 Barry Breckling

Arabis rigidissima var. demota    Carson range rock cress,  Trinity mountain rockcress
rare native
Perennial herb

BRASSICACEAE

Arabis rigidissima var. demota
© 2011 Sierra Pacific Industries
Arabis rigidissima var. demota
© 2011 Sierra Pacific Industries

Arabis rigidissima var. rigidissima    Trinity mountain rockcress,  Trinity mtns. rock cress
rare native
Perennial herb

BRASSICACEAE

Arabis rigidissima var. rigidissima
© 2011 Sierra Pacific Industries
Arabis rigidissima var. rigidissima
© 2015 Dana York
Arabis rigidissima var. rigidissima
© 2015 Dana York

Arctomecon merriamii    Desert poppy,  White bear poppy
rare native
Perennial herb

PAPAVERACEAE

Arctomecon merriamii
© 2024 Jeff Bisbee
Arctomecon merriamii
© 2020 Matt Berger
Arctomecon merriamii
© 2024 Jeff Bisbee

Arctostaphylos andersonii    Heartleaf manzanita,  Santa cruz manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos andersonii
© 2019 David Greenberger
Arctostaphylos andersonii
© 2020 Susan McDougall
Arctostaphylos andersonii
© 2020 Susan McDougall

Arctostaphylos auriculata    Mount Diablo manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos auriculata
© 2023 R.A. Chasey
Arctostaphylos auriculata
© 2016 Adam Chasey
Arctostaphylos auriculata
© 2021 Mike Russler

Arctostaphylos bakeri ssp. bakeri    Baker's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos bakeri ssp. bakeri
© 2019 Susan McDougall
Arctostaphylos bakeri ssp. bakeri
© 2021 Mike Russler
Arctostaphylos bakeri ssp. bakeri
© 2019 Susan McDougall

Arctostaphylos bakeri ssp. sublaevis    The cedars manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos bakeri ssp. sublaevis
© 2021 R.A. Chasey
Arctostaphylos bakeri ssp. sublaevis
© 2021 R.A. Chasey
Arctostaphylos bakeri ssp. sublaevis
© 2021 R.A. Chasey

Arctostaphylos catalinae    Santa catalina island manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos catalinae
© 2020 Aaron Echols
Arctostaphylos catalinae
© 2006 Steve Matson
Arctostaphylos catalinae
© 2017 B.J. Dion

Arctostaphylos confertiflora    Santa rosa island manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos confertiflora
© 2006 Steve Matson
Arctostaphylos confertiflora
© 2024 Jacob A
Arctostaphylos confertiflora
© 2019 Susan McDougall

Arctostaphylos crustacea ssp. eastwoodiana    Eastwood's brittle-leaf manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos crustacea ssp. eastwoodiana
© 2021 Mike Russler
Arctostaphylos crustacea ssp. eastwoodiana
© 2021 Mike Russler
Arctostaphylos crustacea ssp. eastwoodiana
© 2021 Mike Russler

rare native
Shrub

ERICACEAE

Arctostaphylos crustacea ssp. insulicola
© 2024 Richard Spjut
Arctostaphylos crustacea ssp. insulicola
© 2024 Mike Russler
Arctostaphylos crustacea ssp. insulicola
© 2024 Mike Russler

Arctostaphylos crustacea ssp. subcordata    Santa cruz island manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos crustacea ssp. subcordata
© 2020 David Greenberger
Arctostaphylos crustacea ssp. subcordata
© 2024 Mike Russler
Arctostaphylos crustacea ssp. subcordata
© 2024 Mike Russler

Arctostaphylos cruzensis    Arroyo de la cruz manzanita,  La cruz manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos cruzensis
© 2022 David Krause
Arctostaphylos cruzensis
© 2019 R.A. Chasey
Arctostaphylos cruzensis
© 2022 David Krause

Arctostaphylos densiflora    Vine hill manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos densiflora
© 2021 Zoya Akulova
Arctostaphylos densiflora
© 2021 Mike Russler
Arctostaphylos densiflora
© Morgan Stickrod

Arctostaphylos edmundsii    Little sur manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos edmundsii
© 2021 Mary Conway
Arctostaphylos edmundsii
© 2017 Adam Chasey
Arctostaphylos edmundsii
© 2022 Michael Heine

Arctostaphylos franciscana    Franciscan manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos franciscana
© 2016 Adam Chasey
Arctostaphylos franciscana
© 2022 Cynthia Powell
Arctostaphylos franciscana
© 2022 Cynthia Powell

Arctostaphylos gabilanensis    Gabilan mountains manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos gabilanensis
© 2022 Morgan Stickrod
Arctostaphylos gabilanensis
© 2022 Morgan Stickrod
Arctostaphylos gabilanensis
© 2022 Morgan Stickrod

Arctostaphylos glandulosa ssp. crassifolia    Costa baja manzanita,  Del mar manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos glandulosa ssp. crassifolia
© 2019 Diane Etchison
Arctostaphylos glandulosa ssp. crassifolia
© 2023 R.A. Chasey
Arctostaphylos glandulosa ssp. crassifolia
© 2016 Chris Hendrickson

Arctostaphylos glandulosa ssp. gabrielensis    San gabriel manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos glandulosa ssp. gabrielensis
© 2024 Charles Gibbons
Arctostaphylos glandulosa ssp. gabrielensis
© 2024 Mike Russler
Arctostaphylos glandulosa ssp. gabrielensis
© 2024 Mike Russler

Arctostaphylos glutinosa    Schreiber's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos glutinosa
© 2011 Neal Kramer
Arctostaphylos glutinosa
© 2011 Neal Kramer
Arctostaphylos glutinosa
© 2024 Mike Russler

Arctostaphylos hispidula    Howell's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos hispidula
© 2023 Dana York
Arctostaphylos hispidula
© 2019 Adam Chasey
Arctostaphylos hispidula
© 2023 Dana York

Arctostaphylos hookeri ssp. hearstiorum    Hearst's manzanita
rare native
Tree, Shrub

ERICACEAE

Arctostaphylos hookeri ssp. hearstiorum
© 2019 Susan McDougall
Arctostaphylos hookeri ssp. hearstiorum
© 2019 Susan McDougall
Arctostaphylos hookeri ssp. hearstiorum
© 2019 Susan McDougall

Arctostaphylos hookeri ssp. hookeri    Hooker's manzanita,  Monterey manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos hookeri ssp. hookeri
© 2019 Susan McDougall
Arctostaphylos hookeri ssp. hookeri
© 2022 R.A. Chasey
Arctostaphylos hookeri ssp. hookeri
© 2021 Patrick Furtado

Arctostaphylos hooveri    Hoover's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos hooveri
© 2019 Susan McDougall
Arctostaphylos hooveri
© 2019 R.A. Chasey
Arctostaphylos hooveri
© 2019 R.A. Chasey

Arctostaphylos imbricata    San bruno mountain manzanita,  San bruno mtn. manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos imbricata
© 2024 John Rawlings
Arctostaphylos imbricata
© 2022 Cynthia Powell
Arctostaphylos imbricata
© 2019 Patrick Furtado

Arctostaphylos klamathensis    Klamath manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos klamathensis
© 2024 Dana York
Arctostaphylos klamathensis
© 2015 Steve Matson
Arctostaphylos klamathensis
© 2015 Steve Matson

Arctostaphylos luciana    Santa lucia manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos luciana
© 2020 Mike Russler
Arctostaphylos luciana
© 2020 Mike Russler
Arctostaphylos luciana
© 2006 Steve Matson

Arctostaphylos malloryi    Balaklala manzanita,  Mallory's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos malloryi
© 2024 Jordan Collins
Arctostaphylos malloryi
© 2024 Jordan Collins
Arctostaphylos malloryi
© 2022 Julie A. Kierstead

Arctostaphylos manzanita ssp. elegans    Konocti manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos manzanita ssp. elegans
© 2025 Mike Russler
Arctostaphylos manzanita ssp. elegans
© 2017 Robert Barnard
Arctostaphylos manzanita ssp. elegans
© 2025 Mike Russler

Arctostaphylos manzanita ssp. laevigata    Contra costa manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos manzanita ssp. laevigata
© 2023 Brian Tremback
Arctostaphylos manzanita ssp. laevigata
© 2020 R.A. Chasey
Arctostaphylos manzanita ssp. laevigata
© 2020 R.A. Chasey

Arctostaphylos mewukka ssp. truei    True's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos mewukka ssp. truei
© 2020 R.A. Chasey
Arctostaphylos mewukka ssp. truei
© 2020 R.A. Chasey
Arctostaphylos mewukka ssp. truei
© 2020 R.A. Chasey

Arctostaphylos montana ssp. montana    Mt. Tamalpais manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos montana ssp. montana
© 2018 David Greenberger
Arctostaphylos montana ssp. montana
© 2019 Adam Chasey
Arctostaphylos montana ssp. montana
© 2025 Mike Russler

Arctostaphylos montana ssp. ravenii    Presidio manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos montana ssp. ravenii
© 2019 Susan McDougall
Arctostaphylos montana ssp. ravenii
© 2022 R.A. Chasey
Arctostaphylos montana ssp. ravenii
© 2019 Susan McDougall

Arctostaphylos montaraensis    Montara manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos montaraensis
© 2024 Kyle Suchy
Arctostaphylos montaraensis
© 2022 Cynthia Powell
Arctostaphylos montaraensis
© 2020 Mike Russler

Arctostaphylos montereyensis    Monterey manzanita,  Toro manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos montereyensis
© 2022 Mary Conway
Arctostaphylos montereyensis
© 2022 Cynthia Powell
Arctostaphylos montereyensis
© 2020 Mike Russler

Arctostaphylos morroensis    Morro manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos morroensis
© 2020 David Greenberger
Arctostaphylos morroensis
© 2020 David Greenberger
Arctostaphylos morroensis
© 2020 David Greenberger

Arctostaphylos myrtifolia    Ione manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos myrtifolia
© 2006 Steve Matson
Arctostaphylos myrtifolia
© 2006 Steve Matson
Arctostaphylos myrtifolia
© 2006 Steve Matson

Arctostaphylos nissenana    Eldorado manzanita,  Nissenan manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos nissenana
© 2019 Matt Berger
Arctostaphylos nissenana
© 2020 Mike Russler
Arctostaphylos nissenana
© 2019 Matt Berger

Arctostaphylos nortensis    Del norte manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos nortensis
© 2023 Dana York
Arctostaphylos nortensis
© 2020 Susan McDougall
Arctostaphylos nortensis
© 2023 Dana York

rare native
Shrub

ERICACEAE

Arctostaphylos nummularia ssp. mendocinoensis
© 2023 R.A. Chasey
Arctostaphylos nummularia ssp. mendocinoensis
© 2025 Mike Russler
Arctostaphylos nummularia ssp. mendocinoensis
© 2025 Mike Russler

Arctostaphylos obispoensis    Bishop manzanita,  Serpentine manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos obispoensis
© 2019 Susan McDougall
Arctostaphylos obispoensis
© 2021 Mike Russler
Arctostaphylos obispoensis
© 2021 Mike Russler

Arctostaphylos ohloneana    Ohlone manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos ohloneana
© 2011 Dylan Neubauer
Arctostaphylos ohloneana
© 2011 Joey Malone
Arctostaphylos ohloneana
© 2011 Neal Kramer

Arctostaphylos osoensis    Oso manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos osoensis
© 2022 David Krause
Arctostaphylos osoensis
© 2022 David Krause
Arctostaphylos osoensis
© 2020 David Greenberger

Arctostaphylos otayensis    Otay manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos otayensis
© 2021 Ron Vanderhoff
Arctostaphylos otayensis
© 2021 Ron Vanderhoff
Arctostaphylos otayensis
© 2024 Mike Russler

Arctostaphylos pacifica    Pacific manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pacifica
© 2012 Terrence Gosliner
Arctostaphylos pacifica
© 2020 Mike Russler
Arctostaphylos pacifica
© 2016 Richard Chasey

Arctostaphylos pajaroensis    Pajaro manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pajaroensis
© 2020 Mike Russler
Arctostaphylos pajaroensis
© 2022 Michael Heine
Arctostaphylos pajaroensis
© 2022 R.A. Chasey

Arctostaphylos pallida    Alameda manzanita,  Oakland hills manzanita,  Pallid manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pallida
© 2019 Susan McDougall
Arctostaphylos pallida
© 2020 Ian Donahue
Arctostaphylos pallida
© 2020 Scott Cox

rare native
Shrub

ERICACEAE

Arctostaphylos parryana ssp. tumescens
© 2024 Mike Russler
Arctostaphylos parryana ssp. tumescens
© 2021 R.A. Chasey
Arctostaphylos parryana ssp. tumescens
© 2024 Mike Russler

Arctostaphylos pechoensis    Pecho manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pechoensis
© 2020 Susan McDougall
Arctostaphylos pechoensis
© 2020 Mike Russler
Arctostaphylos pechoensis
© 2020 Mike Russler

Arctostaphylos pilosula    La panza manzanita,  Santa Margarita manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pilosula
© 2020 David Greenberger
Arctostaphylos pilosula
© 2020 Mike Russler
Arctostaphylos pilosula
© 2020 Mike Russler

Arctostaphylos pumila    Dune manzanita,  Sandmat manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos pumila
© 2020 David Greenberger
Arctostaphylos pumila
© 2022 Mary Conway
Arctostaphylos pumila
© 2020 David Greenberger

Arctostaphylos purissima    La purisima manzanita,  La purissima manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos purissima
© 2019 Susan McDougall
Arctostaphylos purissima
© 2016 George Williams
Arctostaphylos purissima
© 2021 Mike Russler

Arctostaphylos rainbowensis    Rainbow manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos rainbowensis
© Nathan Taylor
Arctostaphylos rainbowensis
© 2024 Mike Russler
Arctostaphylos rainbowensis
© 2014 Ron Vanderhoff

Arctostaphylos refugioensis    Refugio manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos refugioensis
© 2023 Hunter Breck
Arctostaphylos refugioensis
© 2020 David Greenberger
Arctostaphylos refugioensis
© 2021 Bryant Baker

Arctostaphylos regismontana    Kings mountain manzanita,  Kings mtn. manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos regismontana
© 2020 David Greenberger
Arctostaphylos regismontana
© 2020 R.A. Chasey
Arctostaphylos regismontana
© 2020 David Greenberger

Arctostaphylos rudis    Sand mesa manzanita,  Shagbark manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos rudis
© 2020 David Greenberger
Arctostaphylos rudis
© 2020 David Greenberger
Arctostaphylos rudis
© 2019 Bryant Baker

Arctostaphylos silvicola    Bonny doon manzanita,  Silverleaf manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos silvicola
© 2021 Cara Wilcox
Arctostaphylos silvicola
© 2022 Cara Wilcox
Arctostaphylos silvicola
© 2023 Cynthia Powell

rare native
Shrub

ERICACEAE

Arctostaphylos stanfordiana ssp. decumbens
© 2021 Mike Russler
Arctostaphylos stanfordiana ssp. decumbens
© 2021 R.A. Chasey
Arctostaphylos stanfordiana ssp. decumbens
© 2021 Mike Russler

rare native
Shrub

ERICACEAE

Arctostaphylos stanfordiana ssp. raichei
© 2020 R.A. Chasey
Arctostaphylos stanfordiana ssp. raichei
© 2019 David Magney
Arctostaphylos stanfordiana ssp. raichei
© 2023 Jim Xerogeanes

rare native
Shrub

ERICACEAE

Arctostaphylos tomentosa ssp. daciticola
© 2020 David Greenberger
Arctostaphylos tomentosa ssp. daciticola
© 2024 Kyle Suchy
Arctostaphylos tomentosa ssp. daciticola
© 2020 David Greenberger

Arctostaphylos virgata    Bolinas manzanita,  Marin manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos virgata
© 2023 Suzanne L. Weakley
Arctostaphylos virgata
© 2020 Mike Russler
Arctostaphylos virgata
© 2020 Mike Russler

Arctostaphylos viridissima    Mcminn's manzanita,  White haired manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos viridissima
© 2020 David Greenberger
Arctostaphylos viridissima
© 2019 Susan McDougall
Arctostaphylos viridissima
© 2009 Keir Morse

Arenaria lanuginosa var. saxosa    Rock sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Arenaria lanuginosa var. saxosa
© 2007 John Doyen
Arenaria lanuginosa var. saxosa
© 2008 Michael Charters
Arenaria lanuginosa var. saxosa
© 2009 Thomas Stoughton

Arenaria paludicola    Marsh sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Arenaria paludicola
© 2023 Chloe and Trevor Van Loon
Arenaria paludicola
© 2023 Chloe and Trevor Van Loon
Arenaria paludicola
© 2012 Chris Winchell

Argyrochosma limitanea ssp. limitanea    Southwestern false cloak fern
rare native
Fern (rhizomatous)

PTERIDACEAE


Aristocapsa insignis    Indian valley spine flower,  Indian valley spineflower
rare native
Annual herb

POLYGONACEAE

Aristocapsa insignis
© 2023 James Bailey
Aristocapsa insignis
© 2023 James Bailey
Aristocapsa insignis
© 2024 Mike Russler

Arnica cernua    Serpentine arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica cernua
© 2023 Dana York
Arnica cernua
© 2019 Joey Santore
Arnica cernua
© 2019 Joey Santore

Arnica fulgens    Foothill arnica,  Hillside arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica fulgens
© 2011 Robert L. Carr
Arnica fulgens
© 2011 Robert L. Carr
Arnica fulgens
© 2011 Robert L. Carr

Arnica spathulata    Klamath arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica spathulata
© 2007 Gerald Carr
Arnica spathulata
© 2023 Dana York
Arnica spathulata
© 2023 Dana York

Arnica venosa    Shasta county arnica,  Veiny arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica venosa
© 2010 Julie A. Kierstead
Arnica venosa
© 2010 Julie A. Kierstead
Arnica venosa
© 2019 Julie Kierstead Nelson

Arnica viscosa    Mt. shasta arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica viscosa
© 2024 Dana York
Arnica viscosa
© 2024 Dana York
Arnica viscosa
© 2023 Dana York

Artemisia nesiotica    Island sage brush,  Island sagebrush
rare native
Shrub

ASTERACEAE

Artemisia nesiotica
© 2012 Gary A. Monroe
Artemisia nesiotica
© 2012 Gary A. Monroe
Artemisia nesiotica
© 2006 Vince Scheidt

Artemisia palmeri    San diego sagewort
rare native
Shrub

ASTERACEAE

Artemisia palmeri
© 2016 Chris Hendrickson
Artemisia palmeri
© 2018 Angelique Herman
Artemisia palmeri
© 2018 Angelique Herman

Artemisia tripartita ssp. tripartita    Threetip sagebrush
rare native
Shrub

ASTERACEAE

Artemisia tripartita ssp. tripartita
© 2013 Dean Taylor
Artemisia tripartita ssp. tripartita
© 2013 Dean Taylor
Artemisia tripartita ssp. tripartita
© 2013 Dean Taylor

Asarum marmoratum    Marbled wild ginger,  Marbled wildginger
rare native
Perennial herb (rhizomatous)

ARISTOLOCHIACEAE

Asarum marmoratum
© 2003 Norman Jensen
Asarum marmoratum
© 2013 Ron Clark
Asarum marmoratum
© 2013 Ron Clark

Asclepias asperula ssp. asperula    Antelope horns,  Spider milkweed
rare native
Perennial herb

APOCYNACEAE

Asclepias asperula ssp. asperula
© 2013 James M. Andre
Asclepias asperula ssp. asperula
© 2013 James M. Andre
Asclepias asperula ssp. asperula
© 2013 James M. Andre

Asclepias nyctaginifolia    Mojave milkweed
rare native
Perennial herb

APOCYNACEAE

Asclepias nyctaginifolia
© 2023 Matt Berger
Asclepias nyctaginifolia
© 2010 James M. Andre
Asclepias nyctaginifolia
© 2012 Duncan S. Bell

Asclepias solanoana    Serpentine milkweed,  Solanoa
rare native
Perennial herb

APOCYNACEAE

Asclepias solanoana
© 2019 Spencer Riffle
Asclepias solanoana
© 2019 Steve Matson
Asclepias solanoana
© 2019 Steve Matson

Aspidotis carlotta-halliae    Carlotta hall's lace fern
rare native
Fern (rhizomatous)

PTERIDACEAE

Aspidotis carlotta-halliae
© 2010 Neal Kramer
Aspidotis carlotta-halliae
© 2020 R.A. Chasey
Aspidotis carlotta-halliae
© 2023 R.A. Chasey

Asplenium septentrionale    Northern spleenwort
rare native
Fern (rhizomatous)

ASPLENIACEAE

Asplenium septentrionale
© 2021 Dana York
Asplenium septentrionale
© 2021 Dana York
Asplenium septentrionale
© 2021 Dana York

rare native
Fern (rhizomatous)

ASPLENIACEAE

Asplenium trichomanes ssp. trichomanes
© 2012 Dana York
Asplenium trichomanes ssp. trichomanes
© 2012 Dana York
Asplenium trichomanes ssp. trichomanes
© 2012 Dana York

Asplenium vespertinum    Western spleenwort
rare native
Fern

ASPLENIACEAE

Asplenium vespertinum
© 2015 Ron Vanderhoff
Asplenium vespertinum
© 2014 Ron Vanderhoff
Asplenium vespertinum
© 2023 Ron Vanderhoff

Asplenium viride    Green spleenwort
rare native
Fern (rhizomatous)

ASPLENIACEAE

Asplenium viride
© 2019 John Game
Asplenium viride
© 2007 Dr. Amadej Trnkoczy
Asplenium viride
© 2007 Dr. Amadej Trnkoczy

Astragalus agnicidus    Humboldt milk vetch,  Humboldt milkvetch,  Humboldt County Milkvetch
rare native
Perennial herb

FABACEAE

Astragalus agnicidus
© 2022 Dylan Neubauer
Astragalus agnicidus
© 2022 Dylan Neubauer
Astragalus agnicidus
© 2023 Dylan Neubauer

Astragalus agrestis    Purple loco weed
rare native
Perennial herb

FABACEAE

Astragalus agrestis
© 2012 Jean Pawek
Astragalus agrestis
© 2012 Jean Pawek
Astragalus agrestis
© 2013 Ron Wolf

Astragalus albens    Cushenbury milk vetch,  Cushenbury milkvetch
rare native
Perennial herb

FABACEAE

Astragalus albens
© 2017 Thomas Egan
Astragalus albens
© 2017 Thomas Egan
Astragalus albens
© 2006 Steve Matson

Astragalus allochrous var. playanus    Halfmoon milkvetch,  Playa milk vetch
rare native
Perennial herb

FABACEAE

Astragalus allochrous var. playanus
© 2006 James M. Andre
Astragalus allochrous var. playanus
© 2012 Steve Matson
Astragalus allochrous var. playanus
© 2006 James M. Andre

Astragalus anxius    Troubled milk vetch,  Troubled milkvetch
rare native
Perennial herb

FABACEAE

Astragalus anxius
© 2012 Steve Matson
Astragalus anxius
© 2012 Steve Matson
Astragalus anxius
© 2009 F. Gauna

Astragalus argophyllus var. argophyllus    Silver leaf milk vetch,  Silverleaf milkvetch
rare native
Perennial herb

FABACEAE

Astragalus argophyllus var. argophyllus
© 2013 Steve Matson
Astragalus argophyllus var. argophyllus
© 2013 Steve Matson
Astragalus argophyllus var. argophyllus
© 2013 Steve Matson

Astragalus atratus var. mensanus    Darwin mesa milk vetch,  Darwin mesa milkvetch
rare native
Perennial herb

FABACEAE

Astragalus atratus var. mensanus
© 2001 Dana York
Astragalus atratus var. mensanus
© 2001 Dana York
Astragalus atratus var. mensanus
© 2001 Dana York

Astragalus austiniae    Austin's milk vetch,  Austin's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus austiniae
© 2017 Steve Matson
Astragalus austiniae
© 2017 Steve Matson
Astragalus austiniae
© 2012 Steve Matson

Astragalus bernardinus    San bernardino milk vetch,  San bernardino milkvetch
rare native
Perennial herb

FABACEAE

Astragalus bernardinus
© 2024 Manzanita Dictionary
Astragalus bernardinus
© 2019 Sonie Sampson
Astragalus bernardinus
© 2019 Sonie Sampson

Astragalus bicristatus    Crested milk vetch,  Twogrooved loco milkvetch
rare native
Perennial herb

FABACEAE

Astragalus bicristatus
© 2019 Matt Berger
Astragalus bicristatus
© 2019 Matt Berger
Astragalus bicristatus
© 2019 Matt Berger

Astragalus brauntonii    Braunton's milk vetch,  Braunton's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus brauntonii
© 2022 Zack Abbey
Astragalus brauntonii
© 2018 Ron Vanderhoff
Astragalus brauntonii
© 2022 Ron Vanderhoff

Astragalus breweri    Brewer's milk vetch,  Brewer's milkvetch
rare native
Annual herb

FABACEAE

Astragalus breweri
© 2022 Ryan O'Dell
Astragalus breweri
© 2023 Jim Xerogeanes
Astragalus breweri
© 2018 David Greenberger

Astragalus cimae var. cimae    Cima milk vetch,  Cima milkvetch
rare native
Perennial herb

FABACEAE

Astragalus cimae var. cimae
© 2006 Steve Matson
Astragalus cimae var. cimae
© 2006 Steve Matson
Astragalus cimae var. cimae
© 2006 Steve Matson

Astragalus cimae var. sufflatus    Bladdery cima milk vetch,  Cima milkvetch
rare native
Perennial herb

FABACEAE

Astragalus cimae var. sufflatus
© 2009 Steve Matson
Astragalus cimae var. sufflatus
© 2009 Steve Matson
Astragalus cimae var. sufflatus
© 2011 Steve Matson

Astragalus claranus    Clara Hunt's milk vetch
rare native
Annual herb

FABACEAE

Astragalus claranus
© 2020 Tim Miller
Astragalus claranus
© 2020 Tim Miller
Astragalus claranus
© 2024 Chloe and Trevor Van Loon

Astragalus clevelandii    Cleveland's milk vetch,  Cleveland's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus clevelandii
© 2012 Steve Matson
Astragalus clevelandii
© 2019 Paul Aigner
Astragalus clevelandii
© 2018 Paul Aigner

Astragalus crotalariae    Salton milk vetch,  Salton milkvetch
rare native
Perennial herb

FABACEAE

Astragalus crotalariae
© 2024 Maisie Borg
Astragalus crotalariae
© 2025 Mike Russler
Astragalus crotalariae
© 2025 Mike Russler

Astragalus deanei    Dean's milk vetch,  Deane's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus deanei
© 2022 Becky Escalante
Astragalus deanei
© 2022 Becky Escalante
Astragalus deanei
© 2006 Vince Scheidt

Astragalus didymocarpus var. milesianus    Dwarf white milkvetch,  Miles' milk vetch
rare native
Annual herb

FABACEAE

Astragalus didymocarpus var. milesianus
© 2012 Steve Matson
Astragalus didymocarpus var. milesianus
© 2012 Steve Matson
Astragalus didymocarpus var. milesianus
© 2014 Chris Winchellll

Astragalus douglasii var. perstrictus    Jacumba milk vetch,  Jacumba milkvetch
rare native
Perennial herb

FABACEAE

Astragalus douglasii var. perstrictus
© 2020 David Greenberger
Astragalus douglasii var. perstrictus
© 2010 Tamara Klug
Astragalus douglasii var. perstrictus
© 2012 Vince Scheidt

Astragalus ertterae    Walker pass milk vetch,  Walker pass milkvetch
rare native
Perennial herb

FABACEAE

Astragalus ertterae
© 2020 Dana York
Astragalus ertterae
© 2018 Ashley Olive
Astragalus ertterae
© 2023 Chloe and Trevor Van Loon

Astragalus funereus    Black milk vetch,  Black milkvetch
rare native
Perennial herb

FABACEAE

Astragalus funereus
© 2016 Steve Matson
Astragalus funereus
© 2016 Steve Matson
Astragalus funereus
© 2016 Steve Matson

Astragalus geyeri var. geyeri    Geyer's milk vetch,  Geyer's milkvetch
rare native
Annual herb

FABACEAE

Astragalus geyeri var. geyeri
© 2019 Steve Matson
Astragalus geyeri var. geyeri
© 2019 Steve Matson
Astragalus geyeri var. geyeri
© 2019 Steve Matson

Astragalus gilmanii    Gilman's milk vetch,  Gilman's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus gilmanii
© 2007 Steve Matson
Astragalus gilmanii
© 2007 Steve Matson
Astragalus gilmanii
© 2007 Steve Matson

Astragalus hornii var. hornii    Horn's milk vetch
rare native
Annual herb

FABACEAE

Astragalus hornii var. hornii
© 2013 Neal Kramer
Astragalus hornii var. hornii
© 2013 Neal Kramer
Astragalus hornii var. hornii
© 2013 Neal Kramer

Astragalus insularis var. harwoodii    Harwood's milk vetch,  Harwood's milkvetch
rare native
Annual herb

FABACEAE

Astragalus insularis var. harwoodii
© 2020 David Greenberger
Astragalus insularis var. harwoodii
© 2017 Keir Morse
Astragalus insularis var. harwoodii
© 2020 David Greenberger

Astragalus inversus    Susanville milk vetch,  Susanville milkvetch
rare native
Perennial herb

FABACEAE

Astragalus inversus
© 2022 Steve Matson
Astragalus inversus
© 2019 Matt Berger
Astragalus inversus
© 2019 Matt Berger

Astragalus inyoensis    Inyo milk vetch,  Inyo milkvetch
rare native
Perennial herb

FABACEAE

Astragalus inyoensis
© 2009 Steve Matson
Astragalus inyoensis
© 2009 Steve Matson
Astragalus inyoensis
© 2009 Steve Matson

rare native
Perennial herb

FABACEAE

Astragalus iodanthus var. diaphanoides
© 2013 Gerald Carr
Astragalus iodanthus var. diaphanoides
© 2023 Donald Burk
Astragalus iodanthus var. diaphanoides
© 2023 Donald Burk

Astragalus jaegerianus    Lane mountain milkvetch,  Lane mtn. milk vetch
rare native
Perennial herb

FABACEAE

Astragalus jaegerianus
© 2017 Thomas Egan
Astragalus jaegerianus
© 2013 Xeric Specialties
Astragalus jaegerianus
© 2017 Thomas Egan

Astragalus johannis-howellii    Long valley milk vetch,  Long valley milkvetch
rare native
Perennial herb

FABACEAE

Astragalus johannis-howellii
© 2008 Steve Matson
Astragalus johannis-howellii
© 2008 Steve Matson
Astragalus johannis-howellii
© 2008 Steve Matson

Astragalus kentrophyta var. danaus    Sweetwater mountains milkvetch,  Sweetwater mtns. milk vetch
rare native
Perennial herb

FABACEAE

Astragalus kentrophyta var. danaus
© 2018 Steve Matson
Astragalus kentrophyta var. danaus
© 2018 Steve Matson
Astragalus kentrophyta var. danaus
© 2013 Keir Morse

Astragalus kentrophyta var. elatus    Spiny leaved milk vetch,  Spiny leaved milkvetch
rare native
Perennial herb

FABACEAE

Astragalus kentrophyta var. elatus
© 2019 Steve Matson
Astragalus kentrophyta var. elatus
© 2019 Steve Matson
Astragalus kentrophyta var. elatus
© 2019 Steve Matson

rare native
Perennial herb

FABACEAE

Astragalus kentrophyta var. ungulatus
© 2016 Steve Matson
Astragalus kentrophyta var. ungulatus
© 2016 Steve Matson
Astragalus kentrophyta var. ungulatus
© 2016 Steve Matson

Astragalus lemmonii    Lemmon's milk vetch,  Lemmon's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lemmonii
© 2008 Steve Matson
Astragalus lemmonii
© 2018 Gerald Carr
Astragalus lemmonii
© 2018 Gerald Carr

Astragalus lentiformis    Lens pod milk vetch,  Lens pod milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lentiformis
© 2015 Steve Matson
Astragalus lentiformis
© 2015 Steve Matson
Astragalus lentiformis
© 2015 Steve Matson

Astragalus lentiginosus var. antonius    San antonio milk vetch,  San antonio milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. antonius
© 2014 Keir Morse
Astragalus lentiginosus var. antonius
© 2014 Keir Morse
Astragalus lentiginosus var. antonius
© 2024 Devon Christian

Astragalus lentiginosus var. borreganus    Borrego milk vetch,  Borrego milkvetch
rare native
Annual herb

FABACEAE

Astragalus lentiginosus var. borreganus
© 2006 Steve Matson
Astragalus lentiginosus var. borreganus
© 2006 Steve Matson
Astragalus lentiginosus var. borreganus
© 2006 Steve Matson

Astragalus lentiginosus var. coachellae    Coachella valley milk vetch,  Coachella valley milkvetch
rare native
Annual herb

FABACEAE

Astragalus lentiginosus var. coachellae
© 2016 Alex Beakes
Astragalus lentiginosus var. coachellae
© 2020 Brad Hardison
Astragalus lentiginosus var. coachellae
© 2017 luz torres

Astragalus lentiginosus var. kernensis    Kern plateau milk vetch,  Kern plateau milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. kernensis
© 2022 Eric Koberle
Astragalus lentiginosus var. kernensis
© 2024 Nick Garcia
Astragalus lentiginosus var. kernensis
© 2022 Eric Koberle

Astragalus lentiginosus var. micans    Shining milk vetch,  Shining milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. micans
© 2020 Matt Berger
Astragalus lentiginosus var. micans
© 2020 Matt Berger
Astragalus lentiginosus var. micans
© 2023 richard mcneill

Astragalus lentiginosus var. piscinensis    Fish slough milk vetch,  Fish slough milkvetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. piscinensis
© 2019 Steve Matson
Astragalus lentiginosus var. piscinensis
© 2019 Steve Matson
Astragalus lentiginosus var. piscinensis
© 2019 Steve Matson

Astragalus lentiginosus var. sesquimetralis    Mono locoweed,  Sodaville milk vetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. sesquimetralis
© 2024 Matt C. Berger
Astragalus lentiginosus var. sesquimetralis
© 2024 Matt C. Berger
Astragalus lentiginosus var. sesquimetralis
© 2024 Matt C. Berger

Astragalus lentiginosus var. sierrae    Bear valley milkvetch,  Big bear valley milk vetch
rare native
Perennial herb

FABACEAE

Astragalus lentiginosus var. sierrae
© 2019 Matt Berger
Astragalus lentiginosus var. sierrae
© 2019 Matt Berger
Astragalus lentiginosus var. sierrae
© 2019 Matt Berger

Astragalus leucolobus    Big bear valley woollypod
rare native
Perennial herb

FABACEAE

Astragalus leucolobus
© 2006 Steve Matson
Astragalus leucolobus
© 2006 Steve Matson
Astragalus leucolobus
© 2023 R.A. Chasey

Astragalus macrodon    Salinas milk vetch,  Salinas milkvetch
rare native
Perennial herb

FABACEAE

Astragalus macrodon
© 2010 David Keil
Astragalus macrodon
© 2010 David Keil
Astragalus macrodon
© 2022 Debra Cook

Astragalus magdalenae var. peirsonii    Peirson's milk vetch,  Peirsons locoweed
rare native
Perennial herb

FABACEAE

Astragalus magdalenae var. peirsonii
© 2019 Matt Berger
Astragalus magdalenae var. peirsonii
© 2019 Matt Berger
Astragalus magdalenae var. peirsonii
© 2010 Neal Kramer

Astragalus miguelensis    San miguel island milk vetch,  San miguel island milkvetch,  San miguel milkvetch
rare native
Perennial herb

FABACEAE

Astragalus miguelensis
© 2006 Steve Matson
Astragalus miguelensis
© 2006 Steve Matson
Astragalus miguelensis
© 2006 Steve Matson

Astragalus mohavensis var. hemigyrus    Curved pod milk vetch,  Mojave milkvetch
rare native
Annual herb

FABACEAE

Astragalus mohavensis var. hemigyrus
© 2020 Matt Berger
Astragalus mohavensis var. hemigyrus
© 2020 Matt Berger
Astragalus mohavensis var. hemigyrus
© 2020 Matt Berger

Astragalus monoensis    Mono milk vetch,  Mono milkvetch
rare native
Perennial herb

FABACEAE

Astragalus monoensis
© 2005 Steve Matson
Astragalus monoensis
© 2005 Steve Matson
Astragalus monoensis
© 2005 Steve Matson

Astragalus nevinii    San clemente island milk vetch,  San clemente island milkvetch
rare native
Perennial herb

FABACEAE

Astragalus nevinii
© 2011 Dylan Neubauer
Astragalus nevinii
© 2011 Neal Kramer
Astragalus nevinii
© 2012 Steve Matson

Astragalus nutans    Lax flowered locoweed,  Providence Mountain milkvetch
rare native
Annual herb

FABACEAE

Astragalus nutans
© 2010 James M. Andre
Astragalus nutans
© 2017 John Doyen
Astragalus nutans
© 2016 John Doyen

Astragalus nuttallii var. nuttallii    Nuttall's milkvetch,  Ocean bluff milk vetch
rare native
Perennial herb

FABACEAE

Astragalus nuttallii var. nuttallii
© 2006 Steve Matson
Astragalus nuttallii var. nuttallii
© 2006 Steve Matson
Astragalus nuttallii var. nuttallii
© 2006 Steve Matson

Astragalus nyensis    Nye milk-vetch
rare native
Annual herb

FABACEAE

Astragalus nyensis
© 2005 James M. Andre
Astragalus nyensis
© 2005 James M. Andre

Astragalus oocarpus    San diego milk vetch,  San diego milkvetch
rare native
Perennial herb

FABACEAE

Astragalus oocarpus
© 2009 Andrew Borcher
Astragalus oocarpus
© 2009 Vince Scheidt
Astragalus oocarpus
© 2009 Vince Scheidt

Astragalus oophorus var. lavinii    Lavin's milk vetch,  Lavin's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus oophorus var. lavinii
© 2019 Steve Matson
Astragalus oophorus var. lavinii
© 2010 Steve Matson
Astragalus oophorus var. lavinii
© 2010 Steve Matson

Astragalus oophorus var. oophorus    Bladder milk vetch,  Egg milkvetch
rare native
Perennial herb

FABACEAE

Astragalus oophorus var. oophorus
© 2024 Dana York
Astragalus oophorus var. oophorus
© 2011 Steve Matson
Astragalus oophorus var. oophorus
© 2011 Steve Matson

Astragalus pachypus var. jaegeri    Jaeger's milk vetch,  Jaeger's milkvetch
rare native
Shrub

FABACEAE

Astragalus pachypus var. jaegeri
© 2012 Keir Morse
Astragalus pachypus var. jaegeri
© 2012 Keir Morse
Astragalus pachypus var. jaegeri
© 2012 Keir Morse

Astragalus pauperculus    Depauperate milk vetch,  Depauperate milkvetch
rare native
Annual herb

FABACEAE

Astragalus pauperculus
© 2021 Donald Burk
Astragalus pauperculus
© 2024 Jordan Collins
Astragalus pauperculus
© 2024 Jordan Collins

Astragalus platytropis    Broadkeel milkvetch,  Little big pod milk vetch
rare native
Perennial herb

FABACEAE

Astragalus platytropis
© 2020 Matt Berger
Astragalus platytropis
© 2024 Dana York
Astragalus platytropis
© 2012 Steve Matson

Astragalus preussii var. laxiflorus    Lancaster milk vetch,  Lancaster milkvetch
rare native
Perennial herb

FABACEAE

Astragalus preussii var. laxiflorus
© 2010 James M. Andre
Astragalus preussii var. laxiflorus
© 2016 John Doyen
Astragalus preussii var. laxiflorus
© 2010 James M. Andre

Astragalus preussii var. preussii    Desert milkvetch,  Preuss's milk vetch
rare native
Perennial herb

FABACEAE

Astragalus preussii var. preussii
© 2015 John Doyen
Astragalus preussii var. preussii
© 2015 John Doyen
Astragalus preussii var. preussii
© 2015 John Doyen

Astragalus pseudiodanthus    Tonopah milk vetch,  Tonopah milkvetch
rare native
Perennial herb

FABACEAE

Astragalus pseudiodanthus
© 2014 Steve Matson
Astragalus pseudiodanthus
© 2014 Steve Matson
Astragalus pseudiodanthus
© 2014 Steve Matson

Astragalus pulsiferae var. coronensis    Modoc plateau milk vetch
rare native
Perennial herb

FABACEAE

Astragalus pulsiferae var. coronensis
© 2021 Steve Matson
Astragalus pulsiferae var. coronensis
© 2021 Steve Matson
Astragalus pulsiferae var. coronensis
© 2021 Steve Matson

Astragalus pulsiferae var. pulsiferae    Ames' milkvetch,  Pulsifer's milk vetch
rare native
Perennial herb

FABACEAE

Astragalus pulsiferae var. pulsiferae
© 2008 Steve Matson
Astragalus pulsiferae var. pulsiferae
© 2008 Steve Matson
Astragalus pulsiferae var. pulsiferae
© 2008 Steve Matson

Astragalus pulsiferae var. suksdorfii    Suksdorf's milk vetch,  Suksdorf's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus pulsiferae var. suksdorfii
© 2024 Matt Berger
Astragalus pulsiferae var. suksdorfii
© 2024 Matt Berger
Astragalus pulsiferae var. suksdorfii
© 2024 Matt Berger

Astragalus pycnostachyus var. lanosissimus    Ventura marsh milk vetch,  Ventura marsh milkvetch
rare native
Perennial herb

FABACEAE

Astragalus pycnostachyus var. lanosissimus
© 2013 David Magney
Astragalus pycnostachyus var. lanosissimus
© 2013 David Magney
Astragalus pycnostachyus var. lanosissimus
© 2013 David Magney

Astragalus pycnostachyus var. pycnostachyus    Marsh milk vetch,  Marsh milkvetch
rare native
Perennial herb

FABACEAE

Astragalus pycnostachyus var. pycnostachyus
© 2024 John Rawlings
Astragalus pycnostachyus var. pycnostachyus
© 2020 Amy Patten
Astragalus pycnostachyus var. pycnostachyus
© 2019 Patrick Furtado

Astragalus rattanii var. jepsonianus    Jepson's milk vetch,  Jepson's milkvetch
rare native
Annual herb

FABACEAE

Astragalus rattanii var. jepsonianus
© 2022 Charles Russell
Astragalus rattanii var. jepsonianus
© 2017 Steve Matson
Astragalus rattanii var. jepsonianus
© 2017 Steve Matson

Astragalus rattanii var. rattanii    Rattan's milk vetch,  Rattan's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus rattanii var. rattanii
© 2012 Steve Matson
Astragalus rattanii var. rattanii
© 2012 Steve Matson
Astragalus rattanii var. rattanii
© 2012 Steve Matson

Astragalus ravenii    Raven's milk vetch,  Raven's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus ravenii
© 2018 Steve Matson
Astragalus ravenii
© 2018 Steve Matson
Astragalus ravenii
© 2018 Steve Matson

Astragalus sabulonum    Gravel milk vetch,  Gravel milkvetch
rare native
Annual herb

FABACEAE

Astragalus sabulonum
© 2012 Steve Matson
Astragalus sabulonum
© 2012 Steve Matson
Astragalus sabulonum
© 2005 James M. Andre

Astragalus serenoi var. shockleyi    Naked milk vetch,  Naked milkvetch
rare native
Perennial herb

FABACEAE

Astragalus serenoi var. shockleyi
© 2007 Steve Matson
Astragalus serenoi var. shockleyi
© 2023 richard mcneill
Astragalus serenoi var. shockleyi
© 2007 Steve Matson

Astragalus shevockii    Shevock's milk vetch,  Shevock's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus shevockii
© 2017 Mary Merriman
Astragalus shevockii
© 2023 Chloe and Trevor Van Loon
Astragalus shevockii
© 2023 Chloe and Trevor Van Loon

Astragalus subvestitus    Kern county milk vetch,  Kern county milkvetch
rare native
Perennial herb

FABACEAE

Astragalus subvestitus
© 2020 Matt Berger
Astragalus subvestitus
© 2022 Eric Koberle
Astragalus subvestitus
© 2020 Matt Berger

Astragalus tener var. ferrisiae    Ferris' milkvetch,  Ferris's milk vetch
rare native
Annual herb

FABACEAE

Astragalus tener var. ferrisiae
© 2019 Ian Cain
Astragalus tener var. ferrisiae
© 2019 Ian Cain
Astragalus tener var. ferrisiae
© 2019 Ian Cain

Astragalus tener var. tener    Alkali milk vetch,  Alkali milkvetch
rare native
Annual herb

FABACEAE

Astragalus tener var. tener
© 2025 Mike Russler
Astragalus tener var. tener
© 2020 Tim Miller
Astragalus tener var. tener
© 2019 John Rawlings

Astragalus tener var. titi    Coastal dunes milk vetch,  Coastal dunes milkvetch
rare native
Annual herb

FABACEAE

Astragalus tener var. titi
© 2006 Bob Huettmann
Astragalus tener var. titi
© 2005 Bob Huettmann
Astragalus tener var. titi
© 2004 Bob Huettmann

Astragalus tidestromii    Tidestrom's milk vetch,  Tidestrom's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus tidestromii
© 2023 Matt Berger
Astragalus tidestromii
© 2008 Steve Matson
Astragalus tidestromii
© 2008 Steve Matson

Astragalus traskiae    Trask's milk vetch,  Trask's milkvetch,  Trasks locoweed
rare native
Perennial herb

FABACEAE

Astragalus traskiae
© 2012 Gary A. Monroe
Astragalus traskiae
© 2012 Gary A. Monroe
Astragalus traskiae
© 2014 John Game

Astragalus tricarinatus    Triple ribbed milk vetch,  Triplerib milkvetch
rare native
Perennial herb

FABACEAE

Astragalus tricarinatus
© 2017 James Heintz UCR CCB
Astragalus tricarinatus
© 2020 Lynn Sweet
Astragalus tricarinatus
© 2017 James Heintz

Astragalus umbraticus    Bald mountain milkvetch
rare native
Perennial herb

FABACEAE

Astragalus umbraticus
© 2013 Scot Loring
Astragalus umbraticus
© 2015 Adrienne Simmons
Astragalus umbraticus
© 2011 Sierra Pacific Industries

Astragalus webberi    Webber's milk vetch,  Webber's milkvetch
rare native
Perennial herb

FABACEAE

Astragalus webberi
© 2006 Steve Matson
Astragalus webberi
© 2006 Steve Matson
Astragalus webberi
© 2006 Steve Matson

Astragalus whitneyi var. lenophyllus    Balloonpod milkvetch,  Whitney's milk vetch
rare native
Perennial herb

FABACEAE


rare native
Fern

PTERIDACEAE


Atriplex argentea var. hillmanii    Hillman's silverscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex argentea var. hillmanii
© 2017 Gerald Carr
Atriplex argentea var. hillmanii
© 2017 Gerald Carr
Atriplex argentea var. hillmanii
© 2017 Gerald Carr

rare native
Annual herb

CHENOPODIACEAE

Atriplex argentea var. longitrichoma
© 2022 Matt Berger
Atriplex argentea var. longitrichoma
© 2022 Matt Berger
Atriplex argentea var. longitrichoma
© 2022 Naomi Fraga

rare native
Annual herb

CHENOPODIACEAE

Atriplex cordulata var. cordulata
© 2003 George W. Hartwell
Atriplex cordulata var. cordulata
© 1994 Robert E. Preston, Ph.D.
Atriplex cordulata var. cordulata
© 2011 Jean Pawek

rare native
Annual herb

CHENOPODIACEAE

Atriplex cordulata var. erecticaulis
© 2009 Robert E. Preston, Ph.D.
Atriplex cordulata var. erecticaulis
© 2009 Robert E. Preston, Ph.D.

rare native
Annual herb

CHENOPODIACEAE

Atriplex coronata var. coronata
© 2023 R.A. Chasey
Atriplex coronata var. coronata
© 2023 Cynthia Powell
Atriplex coronata var. coronata
© 2021 Cynthia Powell

Atriplex coronata var. notatior    San jacinto valley crownscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex coronata var. notatior
© 2021 Ron Vanderhoff
Atriplex coronata var. notatior
© 2021 Ron Vanderhoff
Atriplex coronata var. notatior
© 2021 Ron Vanderhoff

Atriplex coronata var. vallicola    Lost hills crownscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex coronata var. vallicola
© 2022 Ryan O'Dell
Atriplex coronata var. vallicola
© 2018 Mitchell Coleman
Atriplex coronata var. vallicola
© 2022 Ryan O'Dell

Atriplex coulteri    Coulter's saltbush
rare native
Perennial herb

CHENOPODIACEAE

Atriplex coulteri
© 2017 Ron Vanderhoff
Atriplex coulteri
© 2021 Ron Vanderhoff
Atriplex coulteri
© 2021 Ron Vanderhoff

Atriplex depressa    Brittlescale
rare native
Annual herb

CHENOPODIACEAE

Atriplex depressa
© 2011 Ramona Robison
Atriplex depressa
© 2009 Zoya Akulova
Atriplex depressa
© 2003 George W. Hartwell

Atriplex gardneri var. falcata    Salt sage,  Sickle saltbush
rare native
Perennial herb

CHENOPODIACEAE

Atriplex gardneri var. falcata
© 2021 Sarah Tona
Atriplex gardneri var. falcata
© 2013 Trent M. Draper
Atriplex gardneri var. falcata
© 2013 Trent M. Draper

Atriplex minuscula    Lesser saltscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex minuscula
© 2024 Mike Russler
Atriplex minuscula
© 2021 Cynthia Powell
Atriplex minuscula
© 2021 Cynthia Powell

Atriplex pacifica    Pacific saltbrush,  South coast saltbush,  South coast saltscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex pacifica
© 2017 Keir Morse
Atriplex pacifica
© 2017 Keir Morse
Atriplex pacifica
© 2017 Keir Morse

Atriplex parishii    Parish's brittlescale,  Parish's saltbush
rare native
Annual herb

CHENOPODIACEAE

Atriplex parishii
© 2021 Ron Vanderhoff
Atriplex parishii
© 2021 Ron Vanderhoff
Atriplex parishii
© 2021 Ron Vanderhoff

Atriplex persistens    Pool orache,  Pool oracle,  Sacramento saltbush
rare native
Annual herb

CHENOPODIACEAE

Atriplex persistens
© 2024 Chloe and Trevor Van Loon
Atriplex persistens
© 2024 Chloe and Trevor Van Loon
Atriplex persistens
© 2024 Chloe and Trevor Van Loon

Atriplex pusilla    Small scale,  Smaller saltweed
rare native
Annual herb

CHENOPODIACEAE


Atriplex serenana var. davidsonii    Bractscale,  Davidson's saltbush,  Davidson's saltscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex serenana var. davidsonii
© 2019 Ron Vanderhoff
Atriplex serenana var. davidsonii
© 2019 Ron Vanderhoff
Atriplex serenana var. davidsonii
© 2017 Neil Uelman

Atriplex subtilis    Deltoid bract saltbush
rare native
Annual herb

CHENOPODIACEAE

Atriplex subtilis
© 2010 Robert E. Preston, Ph.D.
Atriplex subtilis
© 2000 Robert E. Preston, Ph.D.
Atriplex subtilis
© 2000 Robert E. Preston, Ph.D.

Atriplex tularensis    Bakersfield smallscale,  Tulare saltbush
rare native
Annual herb

CHENOPODIACEAE


Ayenia compacta    California ayenia,  Desert ayenia
rare native
Perennial herb, Shrub

MALVACEAE

Ayenia compacta
© 2020 Matt Berger
Ayenia compacta
© 2020 Matt Berger
Ayenia compacta
© 2020 Matt Berger

Azolla microphylla    Mexican mosquito fern
rare native
Fern

AZOLLACEAE

Azolla microphylla
© 2020 John Dittes
Azolla microphylla
© 2018 joaquin hale
Azolla microphylla
© 2020 John Dittes

Baccharis malibuensis    Malibu baccharis
rare native
Shrub

ASTERACEAE

Baccharis malibuensis
© 2018 Katie Gallagher
Baccharis malibuensis
© 2018 Katie Gallagher
Baccharis malibuensis
© 2018 Katie Gallagher

Baccharis plummerae ssp. glabrata    San simeon baccharis
rare native
Shrub

ASTERACEAE

Baccharis plummerae ssp. glabrata
© 2011 Chris Winchell
Baccharis plummerae ssp. glabrata
© 2004 Laura Ann Eliassen
Baccharis plummerae ssp. glabrata
© 2011 Chris Winchell

Baccharis plummerae ssp. plummerae    Plummer's baccharis
rare native
Shrub

ASTERACEAE

Baccharis plummerae ssp. plummerae
© 2023 Jordan Collins
Baccharis plummerae ssp. plummerae
© 2024 Mike Russler
Baccharis plummerae ssp. plummerae
© 2024 Mike Russler

Baccharis vanessae    Encinitas baccharis
rare native
Shrub

ASTERACEAE

Baccharis vanessae
© 2012 Keir Morse
Baccharis vanessae
© 2012 Keir Morse
Baccharis vanessae
© 2012 Keir Morse

Bahia neomexicana    Many flowered bahia
rare native
Annual herb

ASTERACEAE

Bahia neomexicana
© 2011 Keir Morse
Bahia neomexicana
© 2011 Keir Morse
Bahia neomexicana
© 2011 Keir Morse

Balsamorhiza lanata    Woolly balsamroot
rare native
Perennial herb

ASTERACEAE

Balsamorhiza lanata
© 2020 Joey Santore
Balsamorhiza lanata
© 2020 Joey Santore
Balsamorhiza lanata
© 2020 Joey Santore

Balsamorhiza macrolepis    Big scale balsam root,  California balsamroot
rare native
Perennial herb

ASTERACEAE

Balsamorhiza macrolepis
© 2022 R.A. Chasey
Balsamorhiza macrolepis
© 2023 Matt Berger
Balsamorhiza macrolepis
© 2022 R.A. Chasey

Balsamorhiza sericea    Silky balsamroot
rare native
Perennial herb

ASTERACEAE

Balsamorhiza sericea
© 2019 Matt Berger
Balsamorhiza sericea
© 2019 Glenn Fine
Balsamorhiza sericea
© 2007 Keir Morse

Balsamorhiza serrata    Serrate balsam root,  Serrate balsamroot
rare native
Perennial herb

ASTERACEAE

Balsamorhiza serrata
© 2010 Gerald Carr
Balsamorhiza serrata
© 2021 Matt Berger
Balsamorhiza serrata
© 2010 Gerald Carr

Benitoa occidentalis    Benitoa
rare native
Annual herb

ASTERACEAE

Benitoa occidentalis
© 2021 Mike Russler
Benitoa occidentalis
© 2020 Mike Russler
Benitoa occidentalis
© 2019 John Game

Bensoniella oregona    Bensoniella
rare native
Perennial herb

SAXIFRAGACEAE

Bensoniella oregona
© 2010 John Game
Bensoniella oregona
© 2019 Jonathan Lee
Bensoniella oregona
© 2006 Dean Wm. Taylor

Berberis fremontii    Fremont barberry
rare native
Shrub

BERBERIDACEAE

Berberis fremontii
© 2020 David Greenberger
Berberis fremontii
© 2019 Brett Dean
Berberis fremontii
© 2006 James M. Andre

Berberis harrisoniana    Harrison's barberry
rare native
Shrub

BERBERIDACEAE

Berberis harrisoniana
© 2024 Chloe and Trevor Van Loon
Berberis harrisoniana
© 2024 Chloe and Trevor Van Loon
Berberis harrisoniana
© 2024 Chloe and Trevor Van Loon

Berberis higginsiae    Fremont's mahonia
rare native
Shrub

BERBERIDACEAE

Berberis higginsiae
© 2006 Rich Crawford
Berberis higginsiae
© 2013 Gary A. Monroe
Berberis higginsiae
© 2010 Zoya Akulova

Berberis nevinii    Nevin's barberry
rare native
Shrub

BERBERIDACEAE

Berberis nevinii
© 2021 Mary Wloch
Berberis nevinii
© 2022 Aaron Echols
Berberis nevinii
© 2018 Ricky Grubb

Berberis pinnata ssp. insularis    Island barberry
rare native
Shrub

BERBERIDACEAE

Berberis pinnata ssp. insularis
© 2006 Steve Matson
Berberis pinnata ssp. insularis
© 2006 Steve Matson
Berberis pinnata ssp. insularis
© 2006 Steve Matson

Bergerocactus emoryi    Cunyado,  Golden spined cereus
rare native
Shrub (stem succulent)

CACTACEAE

Bergerocactus emoryi
© 2019 Ron Vanderhoff
Bergerocactus emoryi
© 2023 Olga Batalov
Bergerocactus emoryi
© 2023 Eric Koberle

Betula glandulosa    Resin birch; scrub birch
rare native
Shrub

BETULACEAE

Betula glandulosa
© 2008 Sierra Pacific Industries
Betula glandulosa
© 2023 Amy Rachkowski
Betula glandulosa
© 2022 Julie A. Kierstead

Blennosperma bakeri    Baker's blennosperma,  Sonoma sunshine
rare native
Annual herb

ASTERACEAE

Blennosperma bakeri
© 2022 Zoya Akulova-Barlow
Blennosperma bakeri
© 2022 Sheryl Creer
Blennosperma bakeri
© 2022 Sheryl Creer

Blennosperma nanum var. robustum    Point reyes blennosperma
rare native
Annual herb

ASTERACEAE

Blennosperma nanum var. robustum
© 2025 Mike Russler
Blennosperma nanum var. robustum
© 2025 Mike Russler
Blennosperma nanum var. robustum
© 2025 Mike Russler

Blepharidachne kingii    King's eyelash grass,  King's eyelashgrass
rare native
Perennial grass

POACEAE

Blepharidachne kingii
© 2024 Dana York
Blepharidachne kingii
© 2023 Dana York
Blepharidachne kingii
© 2023 Dana York

Blepharizonia plumosa    Big tarweed
rare native
Annual herb

ASTERACEAE

Blepharizonia plumosa
© 2020 David Greenberger
Blepharizonia plumosa
© 2019 Scott Yarger
Blepharizonia plumosa
© 2019 Scott Yarger

Bloomeria clevelandii    San diego goldenstar
rare native
Perennial herb

THEMIDACEAE

Bloomeria clevelandii
© 2019 Chris Hendrickson
Bloomeria clevelandii
© 2011 Larry Sward
Bloomeria clevelandii
© 2009 Anna Bennett

Bloomeria humilis    Dwarf goldenstar
rare native
Perennial herb (bulb)

THEMIDACEAE

Bloomeria humilis
© 2020 David Wolfson
Bloomeria humilis
© 2011 Aaron E. Sims
Bloomeria humilis
© 2012 Terrence Gosliner

Boechera bodiensis    Bodie hills rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera bodiensis
© 1993 Jim Morefield
Boechera bodiensis
© 1993 Jim Morefield
Boechera bodiensis
© 1993 Jim Morefield

Boechera cobrensis    Masonic rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera cobrensis
© 2008 Steve Matson
Boechera cobrensis
© 2008 Steve Matson
Boechera cobrensis
© 2008 Steve Matson

Boechera constancei    Constance's rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera constancei
© 2024 Chloe and Trevor Van Loon
Boechera constancei
© 2024 Chloe and Trevor Van Loon
Boechera constancei
© 2024 Matt Berger

Boechera dispar    Pinyon rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera dispar
© 2012 Steve Matson
Boechera dispar
© 2012 Steve Matson
Boechera dispar
© 2012 Steve Matson

Boechera evadens    Hidden rockcress
rare native
Perennial herb

BRASSICACEAE


Boechera hirshbergiae    Hirshberg's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera hirshbergiae
© 2010 Rebecca Wenk
Boechera hirshbergiae
© 2010 Rebecca Wenk
Boechera hirshbergiae
© 2008 Jordan Zylstra

Boechera hoffmannii    Hoffmann's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera hoffmannii
© 2014 Steve Matson
Boechera hoffmannii
© 2014 Steve Matson
Boechera hoffmannii
© 2014 Steve Matson

Boechera johnstonii    Johnston's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera johnstonii
© 2019 Matt Berger
Boechera johnstonii
© 2019 Matt Berger
Boechera johnstonii
© 2019 Matt Berger

Boechera koehleri    Koehler's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera koehleri
© 2023 Dee Shea Himes
Boechera koehleri
© 2023 Dee Shea Himes
Boechera koehleri
© 2023 Dana York

Boechera lincolnensis    Lincoln rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera lincolnensis
© 2005 Brent Miller
Boechera lincolnensis
© 2005 Brent Miller

Boechera microphylla    Small-leaved rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera microphylla
© 2011 Mary Winter
Boechera microphylla
© 2011 Mary Winter

Boechera parishii    Parish's rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera parishii
© 2006 Steve Matson
Boechera parishii
© 2006 Steve Matson
Boechera parishii
© 2006 Steve Matson

Boechera peirsonii    San bernardino rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera peirsonii
© 2011 Thomas Stoughton
Boechera peirsonii
© 2011 Thomas Stoughton
Boechera peirsonii
© 2011 Thomas Stoughton

Boechera pendulina    Nodding rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera pendulina
© 2019 Steve Matson
Boechera pendulina
© 2019 Steve Matson
Boechera pendulina
© 2019 Steve Matson

Boechera pinzliae    Pinzl's rock cress
rare native
Perennial herb

BRASSICACEAE


Boechera pygmaea    Tulare county rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera pygmaea
© 2023 Chloe and Trevor Van Loon
Boechera pygmaea
© 2023 Chloe and Trevor Van Loon
Boechera pygmaea
© 2019 Matt Berger

Boechera rollei    Rolle's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera rollei
© 2012 Dana York
Boechera rollei
© 2024 Chloe Van Loon
Boechera rollei
© 2024 Chloe Van Loon

Boechera rubicundula    Mount day rockcress
rare native
Perennial herb

BRASSICACEAE


Boechera serpenticola    Serpentine rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera serpenticola
© 2019 Steve Matson
Boechera serpenticola
© 2019 Steve Matson
Boechera serpenticola
© 2019 Steve Matson

Boechera shevockii    Shevock's rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera shevockii
© 2023 Chloe and Trevor Van Loon
Boechera shevockii
© 2023 Aidan Marshall
Boechera shevockii
© 2023 Aidan Marshall

Boechera shockleyi    Shockley's rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera shockleyi
© 2020 Steve Matson
Boechera shockleyi
© 2019 Steve Matson
Boechera shockleyi
© 2020 Steve Matson

Boechera tiehmii    Tiehm's rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera tiehmii
© 2023 Chloe and Trevor Van Loon
Boechera tiehmii
© 2023 Sam Eberhard
Boechera tiehmii
© 2023 Chloe and Trevor Van Loon

Boechera tularensis    Tulare rockcress
rare native
Perennial herb

BRASSICACEAE

Boechera tularensis
© 2021 Mike Russler
Boechera tularensis
© 2021 Mike Russler
Boechera tularensis
© 2021 Mike Russler

Boechera ultraalsa    Snow mountain rockcress
rare native
Perennial herb

BRASSICACEAE


Boechera yorkii    Last chance rock cress
rare native
Perennial herb

BRASSICACEAE

Boechera yorkii
© 2005 Dana York
Boechera yorkii
© 2005 Dana York
Boechera yorkii
© 2005 Dana York

Bolandra californica    California bolandra,  Sierra bolandra
rare native
Perennial herb

SAXIFRAGACEAE

Bolandra californica
© 2010 Steve Matson
Bolandra californica
© 2010 Steve Matson
Bolandra californica
© 2010 Steve Matson

Botrychium ascendens    Upswept moonwort
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium ascendens
© 2005 Steve Matson
Botrychium ascendens
© 2005 Steve Matson
Botrychium ascendens
© 2005 Steve Matson

Botrychium crenulatum    Scalloped moonwort
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium crenulatum
© 2016 Steve Matson
Botrychium crenulatum
© 2016 Steve Matson
Botrychium crenulatum
© 2016 Steve Matson

Botrychium lineare    Narrowleaf grapefern
rare native
Fern

OPHIOGLOSSACEAE


Botrychium lunaria    Common moonwort,  Moonwort grapefern
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium lunaria
© 2014 Dr. Amadej Trnkoczy
Botrychium lunaria
© 2011 Ryan Batten
Botrychium lunaria
© 1979 Dean Wm. Taylor

Botrychium minganense    Mingan moonwort
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium minganense
© 2020 Belinda Lo
Botrychium minganense
© 2011 Aaron E. Sims
Botrychium minganense
© 2014 Sierra Pacific Industries

Botrychium montanum    Western goblin
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium montanum
© 2019 Belinda Lo
Botrychium montanum
© 2012 Belinda Lo
Botrychium montanum
© 2012 Belinda Lo

Botrychium paradoxum    Paradox moonwort
rare native
Fern

OPHIOGLOSSACEAE

Botrychium paradoxum
© 2011 Ryan Batten
Botrychium paradoxum
© 2011 Ryan Batten

Botrychium pedunculosum    Stalked moonwort
rare native
Perennial herb

OPHIOGLOSSACEAE

Botrychium pedunculosum
© 2011 Aaron E. Sims
Botrychium pedunculosum
© 2011 Aaron E. Sims

Botrychium pinnatum    Northwestern moonwort
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Botrychium pinnatum
© 2007 John Game
Botrychium pinnatum
© 2020 Belinda Lo
Botrychium pinnatum
© 2007 Shawn DeCew

Botrychium pumicola    Crater lake grapefern
rare native
Fern

OPHIOGLOSSACEAE

Botrychium pumicola
© 2006 Keir Morse
Botrychium pumicola
© 2006 Keir Morse
Botrychium pumicola
© 2006 Keir Morse

Botrychium tunux    Moosewort
rare native
Fern

OPHIOGLOSSACEAE


Botrychium yaaxudakeit    Giant moonwort
rare native
Fern

OPHIOGLOSSACEAE


Botrypus virginianus    Rattlesnake fern
rare native
Fern

OPHIOGLOSSACEAE

Botrypus virginianus
© 2021 Cheryl Ballantyne
Botrypus virginianus
© 2022 Amy Rachkowski
Botrypus virginianus
© 2023 Amy Rachkowski

Bouteloua eriopoda    Black grama
rare native
Perennial grass

POACEAE

Bouteloua eriopoda
© 2012 Duncan S. Bell
Bouteloua eriopoda
© 2012 Duncan S. Bell
Bouteloua eriopoda
© 2015 Belinda Lo

Bouteloua trifida    Red grama
rare native
Perennial grass

POACEAE

Bouteloua trifida
© 2019 Matt Berger
Bouteloua trifida
© 2019 Matt Berger
Bouteloua trifida
© 2019 Matt Berger

Brasenia schreberi    Watershield
rare native
Perennial herb (aquatic)

CABOMBACEAE

Brasenia schreberi
© 2020 Bob Sweatt
Brasenia schreberi
© 2020 Bob Sweatt
Brasenia schreberi
© 2023 Matt Berger

Brodiaea filifolia    Thread leaved brodiaea,  Threadleaf brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea filifolia
© 2019 Diane Etchison
Brodiaea filifolia
© 2019 Diane Etchison
Brodiaea filifolia
© 2021 Ron Vanderhoff

Brodiaea insignis    Kaweah brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea insignis
© 2019 Joe Engelbrecht
Brodiaea insignis
© 2019 Joe Engelbrecht
Brodiaea insignis
© 2020 Jeff Bisbee

Brodiaea kinkiensis    San clemente island brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea kinkiensis
© 2011 Dylan Neubauer
Brodiaea kinkiensis
© 2011 Dylan Neubauer
Brodiaea kinkiensis
© 2011 Neal Kramer

Brodiaea leptandra    Narrow-flowered california brodiaea
rare native
Perennial herb

THEMIDACEAE

Brodiaea leptandra
© 2022 John Game
Brodiaea leptandra
© 2023 Hannah Aclufi
Brodiaea leptandra
© 2022 R.A. Chasey

Brodiaea matsonii    Sulphur creek brodiaea
rare native
Perennial herb

THEMIDACEAE

Brodiaea matsonii
© 2020 Jeff Bisbee
Brodiaea matsonii
© 2016 Julie A. Kierstead
Brodiaea matsonii
© 2020 Jeff Bisbee

Brodiaea orcuttii    Orcutt's brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea orcuttii
© 2023 Caitlin Kreutz
Brodiaea orcuttii
© 2024 Erin Bergman
Brodiaea orcuttii
© 2023 Juergen Schrenk

Brodiaea pallida    Chinese camp brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea pallida
© 2020 Jeff Bisbee
Brodiaea pallida
© 2020 Jeff Bisbee
Brodiaea pallida
© 2020 Jeff Bisbee

Brodiaea rosea    Indian valley brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea rosea
© 2015 Steve Matson
Brodiaea rosea
© 2015 Steve Matson
Brodiaea rosea
© 2015 Steve Matson

Brodiaea rosea ssp. rosea    Indian Valley brodiaea
rare native
Perennial herb (bulb

THEMIDACEAE

Brodiaea rosea ssp. rosea
© 2019 Julie Kierstead Nelson
Brodiaea rosea ssp. rosea
© 2015 Julie A. Kierstead
Brodiaea rosea ssp. rosea
© 2021 Steve Laymon

Brodiaea rosea ssp. vallicola    valley brodiaea
rare native
Perennial herb (bulb)

THEMIDACEAE

Brodiaea rosea ssp. vallicola
© 2020 Jeff Bisbee
Brodiaea rosea ssp. vallicola
© 2020 Jeff Bisbee
Brodiaea rosea ssp. vallicola
© 2020 Jeff Bisbee

Brodiaea santarosae    Santa Rosa basalt brodiaea
rare native
Perennial herb

THEMIDACEAE

Brodiaea santarosae
© 2018 Ron Vanderhoff
Brodiaea santarosae
© 2018 Ron Vanderhoff
Brodiaea santarosae
© 2020 Ron Vanderhoff

Brodiaea sierrae    Sierra foothills brodiaea
rare native
Perennial herb

THEMIDACEAE

Brodiaea sierrae
© 2020 Jeff Bisbee
Brodiaea sierrae
© 2019 Steve Laymon
Brodiaea sierrae
© 2019 Steve Laymon

Bruchia bolanderi    Bolander's bruchia moss
rare native
Moss

BRUCHIANCEAE

Bruchia bolanderi
© 2024 Matt Berger
Bruchia bolanderi
© 2024 Matt Berger
Bruchia bolanderi
© 2024 Matt Berger

Bryoria pseudocapillaris    False gray horsehair lichen
rare native
Lichen

PARMELIACEAE

Bryoria pseudocapillaris
© 2018 Scot Loring
Bryoria pseudocapillaris
© 2018 Scot Loring

Bryoria spiralifera    Twisted horsehair lichen
rare native
Lichen

PARMELIACEAE

Bryoria spiralifera
© 2018 Scot Loring
Bryoria spiralifera
© 2018 Scot Loring
Bryoria spiralifera
© 2018 Scot Loring

Bryum chryseum    Brassy bryum
rare native
Moss

BRYACEAE


Bulbostylis capillaris    Thread leaf beakseed,  Threadleaf beakseed
rare native
Annual grasslike herb

CYPERACEAE

Bulbostylis capillaris
© 2024 R.A. Chasey
Bulbostylis capillaris
© 2024 R.A. Chasey
Bulbostylis capillaris
© 2024 R.A. Chasey

Bursera microphylla    Elephant tree,  Littleleaf elephanttree
rare native
Tree

BURSERACEAE

Bursera microphylla
© 2020 Matt Berger
Bursera microphylla
© 2020 David Greenberger
Bursera microphylla
© 2020 Matt Berger

Buxbaumia viridis    Buxbaumia moss
rare native
Moss

BUXBAUMIACEAE

Buxbaumia viridis
© 2013 Scot Loring
Buxbaumia viridis
© 2013 Scot Loring

Calamagrostis bolanderi    Bolander's reedgrass
rare native
Perennial grass (rhizomatous)

POACEAE

Calamagrostis bolanderi
© 2017 Hayley Ross
Calamagrostis bolanderi
© 2009 Zoya Akulova
Calamagrostis bolanderi
© 2009 Zoya Akulova

Calamagrostis crassiglumis    Thurber's reed grass
rare native
Perennial grass (rhizomatous)

POACEAE

Calamagrostis crassiglumis
© 2011 Vernon Smith
Calamagrostis crassiglumis
© 2000 Doreen L. Smith
Calamagrostis crassiglumis
© 2007 Steve Matson

Calamagrostis foliosa    Leafy reed grass,  Leafy reedgrass
rare native
Perennial grass

POACEAE

Calamagrostis foliosa
© 2015 William Maslach
Calamagrostis foliosa
© 2006 Steve Matson
Calamagrostis foliosa
© 2011 Zoya Akulova

Calamagrostis ophitidis    Serpentine reed grass,  Serpentine reedgrass
rare native
Perennial grass

POACEAE

Calamagrostis ophitidis
© 2021 R.A. Chasey
Calamagrostis ophitidis
© 2018 Hunter Breck
Calamagrostis ophitidis
© 2025 Mike Russler

Calandrinia breweri    Brewer's calandrinia
rare native
Annual herb

MONTIACEAE

Calandrinia breweri
© 2019 Ron Vanderhoff
Calandrinia breweri
© 2019 Ron Vanderhoff
Calandrinia breweri
© 2014 Ron Vanderhoff

Calicium adspersum    Spiral-spored guilded-head pin lichen
rare native
Lichen

CALICIACEAE

Calicium adspersum
© 2018 Scot Loring
Calicium adspersum
© 2018 Scot Loring
Calicium adspersum
© 2018 Scot Loring

California macrophylla    Round leaved filaree
native
Annual herb

GERANIACEAE

California macrophylla
© 2022 Cynthia Adkisson
California macrophylla
© 2023 Eric Koberle
California macrophylla
© 2022 Cynthia Adkisson

Calliandra eriophylla    Fairyduster,  False mesquite
rare native
Shrub

FABACEAE

Calliandra eriophylla
© 2020 Diane Etchison
Calliandra eriophylla
© 2016 Fred Melgert
Calliandra eriophylla
© 2016 Fred Melgert

Callitropsis nootkatensis    Alaska cedar
rare native
Tree

CUPRESSACEAE

Callitropsis nootkatensis
© 2008 Michael Kauffmann
Callitropsis nootkatensis
© 2018 Cynthia Powell
Callitropsis nootkatensis
© 2019 Michael Kauffmann

Calochortus catalinae    Catalina mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus catalinae
© 2017 Steve Matson
Calochortus catalinae
© 2023 Ron Vanderhoff
Calochortus catalinae
© 2023 Ron Vanderhoff

Calochortus clavatus var. avius    Pleasant valley mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus clavatus var. avius
© 2023 Morgan Stickrod
Calochortus clavatus var. avius
© 2024 Jordan Collins
Calochortus clavatus var. avius
© 2024 Cynthia Powell

Calochortus clavatus var. clavatus    Club haired mariposa lily,  Clubhair mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus clavatus var. clavatus
© 2020 David Wolfson
Calochortus clavatus var. clavatus
© 2020 David Krause
Calochortus clavatus var. clavatus
© 2023 Mike Russler

Calochortus clavatus var. gracilis    Slender mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus clavatus var. gracilis
© 2018 John L. Thompson
Calochortus clavatus var. gracilis
© 2019 John L. Thompson
Calochortus clavatus var. gracilis
© 2023 Alicia Di Rado

Calochortus clavatus var. recurvifolius    Arroyo de la Cruz mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus clavatus var. recurvifolius
© 2023 Morgan Stickrod
Calochortus clavatus var. recurvifolius
© 2020 David Krause
Calochortus clavatus var. recurvifolius
© 2012 CNPS SLO

Calochortus dunnii    Dunn's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus dunnii
© 2019 Jonathan Mercado
Calochortus dunnii
© 2016 Jenna Hartsook
Calochortus dunnii
© 2022 Elena Oey

Calochortus excavatus    Inyo County star tulip,  Owens Valley mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus excavatus
© 2020 Steve Matson
Calochortus excavatus
© 2020 Steve Matson
Calochortus excavatus
© 2020 Steve Matson

Calochortus fimbriatus    Late-flowered mariposa lily
rare native
Perennial herb

LILIACEAE

Calochortus fimbriatus
© 2019 Spencer Riffle
Calochortus fimbriatus
© 2018 Aanjelae Rhoads
Calochortus fimbriatus
© 2019 Spencer Riffle

Calochortus greenei    Greene's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus greenei
© 2020 David Greenberger
Calochortus greenei
© 2019 John L. Thompson
Calochortus greenei
© Jeff Bisbee

Calochortus longebarbatus var. longebarbatus    Long haired star tulip
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus longebarbatus var. longebarbatus
© 2011 Steve Matson
Calochortus longebarbatus var. longebarbatus
© 2011 Steve Matson
Calochortus longebarbatus var. longebarbatus
© 2023 Amy Rachkowski

Calochortus monanthus    Single flowered mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE


Calochortus obispoensis    San luis mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus obispoensis
© 2023 Morgan Stickrod
Calochortus obispoensis
© 2023 Mike Russler
Calochortus obispoensis
© 2022 Dee Shea Himes

Calochortus palmeri var. munzii    Munz's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus palmeri var. munzii
© 2023 Morgan Stickrod
Calochortus palmeri var. munzii
© 2012 Keir Morse
Calochortus palmeri var. munzii
© 2019 Matt Berger

Calochortus palmeri var. palmeri    Palmer's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus palmeri var. palmeri
© 2016 Ron Vanderhoff
Calochortus palmeri var. palmeri
© 2020 Marisa Persaud
Calochortus palmeri var. palmeri
© 2019 Matt Berger

Calochortus panamintensis    Panamint mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus panamintensis
© 2011 Steve Matson
Calochortus panamintensis
© 2011 Steve Matson
Calochortus panamintensis
© 2020 John L. Thompson

Calochortus persistens    Siskiyou mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus persistens
© 2020 David Greenberger
Calochortus persistens
© 2020 Joey Santore
Calochortus persistens
© 2020 Joey Santore

Calochortus plummerae    Plummer's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus plummerae
© 2020 Emily Sluiman
Calochortus plummerae
© 2022 Ron Vanderhoff
Calochortus plummerae
© 2018 David Greenberger

Calochortus pulchellus    Mount Diablo globelily,  Mt. Diablo fairy lantern
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus pulchellus
© 2018 Steve Matson
Calochortus pulchellus
© 2018 Steve Matson
Calochortus pulchellus
© 2018 Steve Matson

Calochortus raichei    The cedars fairy lantern
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus raichei
© 2010 Tony Morosco
Calochortus raichei
© 2005 Steve Lowens
Calochortus raichei
© 2023 John L. Thompson

Calochortus simulans    San luis obispo mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus simulans
© 2019 David Greenberger
Calochortus simulans
© 2019 David Greenberger
Calochortus simulans
© 2020 John L. Thompson

Calochortus striatus    Alkali mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus striatus
© 2023 John L. Thompson
Calochortus striatus
© 2023 John L. Thompson
Calochortus striatus
© 2019 Sonie Sampson

Calochortus syntrophus    Callahan's mariposa lily
rare native
Perennial herb

LILIACEAE

Calochortus syntrophus
© 2023 Dee Shea Himes
Calochortus syntrophus
© 2023 Dee Shea Himes
Calochortus syntrophus
© 2018 Julie A. Kierstead

Calochortus tiburonensis    Tiburon mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus tiburonensis
© 2016 Steve Matson
Calochortus tiburonensis
© 2016 Steve Matson
Calochortus tiburonensis
© 2016 Steve Matson

Calochortus umbellatus    Oakland mariposa lily,  Oakland star tulip
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus umbellatus
© 2018 Steve Matson
Calochortus umbellatus
© 2018 Steve Matson
Calochortus umbellatus
© 2018 Steve Matson

Calochortus uniflorus    Pink star tulip
rare native
Perennial herb

LILIACEAE

Calochortus uniflorus
© 2022 Steve Conger
Calochortus uniflorus
© 2020 Elsa de Becker
Calochortus uniflorus
© 2022 Mary Ann Machi

Calochortus weedii var. intermedius    Intermediate mariposa lily,  Weed's mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus weedii var. intermedius
© 2024 Shari Suzuki
Calochortus weedii var. intermedius
© 2023 Nathan Taxel
Calochortus weedii var. intermedius
© 2022 Ron Vanderhoff

Calochortus westonii    Shirley meadows star tulip
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus westonii
© 2017 Tim Miller
Calochortus westonii
© 2023 Bob Steele
Calochortus westonii
© 2022 Dee Shea Himes

Calycadenia hooveri    Hoover's calycadenia
rare native
Annual herb

ASTERACEAE

Calycadenia hooveri
© 2024 Chloe and Trevor Van Loon
Calycadenia hooveri
© 2024 Chloe and Trevor Van Loon
Calycadenia hooveri
© 2019 Scott Yarger

Calycadenia micrantha    Small flowered calycadenia
rare native
Annual herb

ASTERACEAE

Calycadenia micrantha
© 2024 Chloe and Trevor Van Loon
Calycadenia micrantha
© 2024 Chloe and Trevor Van Loon
Calycadenia micrantha
© 2022 Ryan O'Dell

Calycadenia oppositifolia    Butte county calycadenia
rare native
Annual herb

ASTERACEAE

Calycadenia oppositifolia
© 2019 Belinda Lo
Calycadenia oppositifolia
© 2019 Belinda Lo
Calycadenia oppositifolia
© 2022 Ryan O'Dell

Calycadenia villosa    Dwarf calycadenia
rare native
Annual herb

ASTERACEAE

Calycadenia villosa
© 2016 David Wolfson
Calycadenia villosa
© 2015 David Wolfson
Calycadenia villosa
© 2004 Laura Ann Eliassen

Calyptridium arizonicum    Arizona pussypaws
rare native
Annual herb

MONTIACEAE

Calyptridium arizonicum
© 2015 Paul Preston
Calyptridium arizonicum
© 2015 Paul Preston
Calyptridium arizonicum
© 2015 Paul Preston

Calyptridium parryi var. hesseae    Santa cruz mtns. pussypaws
rare native
Annual herb

MONTIACEAE

Calyptridium parryi var. hesseae
© 2023 Ryan O'Dell
Calyptridium parryi var. hesseae
© 2019 David Greenberger
Calyptridium parryi var. hesseae
© 2019 David Greenberger

Calyptridium pulchellum    Mariposa pussypaws
rare native
Annual herb

MONTIACEAE

Calyptridium pulchellum
© 2007 Chris Winchell
Calyptridium pulchellum
© 2016 Wendy Fisher
Calyptridium pulchellum
© 2007 Chris Winchell

Calyptridium pygmaeum    Pygmy pussypaws
rare native
Annual herb

MONTIACEAE

Calyptridium pygmaeum
© 2023 Chloe and Trevor Van Loon
Calyptridium pygmaeum
© 2023 Chloe and Trevor Van Loon
Calyptridium pygmaeum
© 2014 Joy England

Calyptridium quadripetalum    Four petaled pussypaws
rare native
Annual herb

MONTIACEAE

Calyptridium quadripetalum
© 2019 Paul Aigner
Calyptridium quadripetalum
© 2017 R.A. Chasey
Calyptridium quadripetalum
© 2024 Chloe and Trevor Van Loon

Calystegia atriplicifolia ssp. buttensis    Butte county morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia atriplicifolia ssp. buttensis
© 2020 Lilyanne Price
Calystegia atriplicifolia ssp. buttensis
© 2020 Lilyanne Price
Calystegia atriplicifolia ssp. buttensis
© 2024 David popp

Calystegia collina ssp. oxyphylla    Mount saint helena morning glory,  Mt. saint helena morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia collina ssp. oxyphylla
© 2020 Hunter Breck
Calystegia collina ssp. oxyphylla
© 2019 R.A. Chasey
Calystegia collina ssp. oxyphylla
© 2022 David Strauch

Calystegia collina ssp. tridactylosa    Coast range false bindweed,  Three fingered morning glory
rare native
Perennial herb

CONVOLVULACEAE

Calystegia collina ssp. tridactylosa
© 2011 Vernon Smith
Calystegia collina ssp. tridactylosa
© BLM,Arcata Field Office

Calystegia collina ssp. venusta    South coast range morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia collina ssp. venusta
© 2022 Mike Russler
Calystegia collina ssp. venusta
© 2019 Jennifer Wheeler
Calystegia collina ssp. venusta
© 2022 Mike Russler

Calystegia felix    Lucky morning-glory
rare native
Annual herb

CONVOLVULACEAE

Calystegia felix
© 2018 Ron Vanderhoff
Calystegia felix
© 2015 Ron Vanderhoff
Calystegia felix
© 2017 Ron Vanderhoff

Calystegia macrostegia ssp. amplissima    Island morning glory
rare native
Perennial herb

CONVOLVULACEAE

Calystegia macrostegia ssp. amplissima
© 2011 Dylan Neubauer
Calystegia macrostegia ssp. amplissima
© 2019 serpophaga
Calystegia macrostegia ssp. amplissima
© 2024 gbentall

Calystegia malacophylla var. berryi    Berry's morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia malacophylla var. berryi
© 2018 Dana York
Calystegia malacophylla var. berryi
© 2018 Dana York
Calystegia malacophylla var. berryi
© 2018 Dana York

Calystegia peirsonii    Peirson's morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia peirsonii
© 2019 Anna Van Kovn
Calystegia peirsonii
© 2019 Anna Van Kovn
Calystegia peirsonii
© 2019 Anna Van Kovn

Calystegia purpurata ssp. saxicola    Bodega morning glory,  Pacific false bindweed
rare native
Perennial herb

CONVOLVULACEAE

Calystegia purpurata ssp. saxicola
© 2017 Mary Sue Ittner
Calystegia purpurata ssp. saxicola
© 2022 Zoya Akulova-Barlow
Calystegia purpurata ssp. saxicola
© 2019 Manzanita Dictionary

Calystegia sepium ssp. binghamiae    Bingham's false bindweed,  Santa barbara morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE


Calystegia stebbinsii    Cutleaf morning glory,  El dorado morningglory,  Stebbins's morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia stebbinsii
© 2022 Charles Russell
Calystegia stebbinsii
© 2024 Michael Nehl
Calystegia stebbinsii
© 2024 Michael Nehl

Calystegia subacaulis ssp. episcopalis    Cambria morning glory,  San luis obispo county morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia subacaulis ssp. episcopalis
© 2019 David Greenberger
Calystegia subacaulis ssp. episcopalis
© 2021 Kristen Nelson
Calystegia subacaulis ssp. episcopalis
© 2011 Aaron E. Sims

Calystegia vanzuukiae    Van zuuk's morning-glory
rare native
Perennial herb

CONVOLVULACEAE

Calystegia vanzuukiae
© 2022 Camille Nowell
Calystegia vanzuukiae
© 2022 Camille Nowell
Calystegia vanzuukiae
© 2014 Steven Perry

Camissonia benitensis    San benito evening primrose
rare native
Annual herb

ONAGRACEAE

Camissonia benitensis
© 2022 Mike Russler
Camissonia benitensis
© 2025 R.A. Chasey
Camissonia benitensis
© 2022 Mike Russler

Camissonia integrifolia    Kern river evening primrose
rare native
Annual herb

ONAGRACEAE

Camissonia integrifolia
© 2021 Ryan O'Dell
Camissonia integrifolia
© 2020 Ryan O'Dell
Camissonia integrifolia
© 2015 John Game

Camissonia kernensis ssp. kernensis    Kern county evening primrose
rare native
Annual herb

ONAGRACEAE

Camissonia kernensis ssp. kernensis
© 2019 Matt Berger
Camissonia kernensis ssp. kernensis
© 2024 Mike Russler
Camissonia kernensis ssp. kernensis
© 2016 Steve Matson

Camissonia sierrae ssp. alticola    Mono hot springs evening primrose
rare native
Annual herb

ONAGRACEAE

Camissonia sierrae ssp. alticola
© 2015 Dana York
Camissonia sierrae ssp. alticola
© 2015 Dana York
Camissonia sierrae ssp. alticola
© 2015 Dana York

Camissonia sierrae ssp. sierrae    Sierra sun cup,  Sierra suncup
rare native
Annual herb

ONAGRACEAE

Camissonia sierrae ssp. sierrae
© 2024 Ryan Donnelly
Camissonia sierrae ssp. sierrae
© 2021 Mike Russler
Camissonia sierrae ssp. sierrae
© 2021 Mike Russler

Camissoniopsis guadalupensis ssp. clementina    San clemente island evening-primrose
rare native
Annual herb

ONAGRACEAE

Camissoniopsis guadalupensis ssp. clementina
© 2011 Dylan Neubauer
Camissoniopsis guadalupensis ssp. clementina
© 2011 Dylan Neubauer
Camissoniopsis guadalupensis ssp. clementina
© 2011 Dylan Neubauer

Camissoniopsis hardhamiae    Hardham's evening-primrose
rare native
Annual herb

ONAGRACEAE

Camissoniopsis hardhamiae
© 1981 California Native Plant Society
Camissoniopsis hardhamiae
© 2005 Dean Wm. Taylor
Camissoniopsis hardhamiae
© 2013 Chris Winchell

Camissoniopsis lewisii    Lewis' evening-primrose
rare native
Annual herb

ONAGRACEAE

Camissoniopsis lewisii
© 2019 Diane Etchison
Camissoniopsis lewisii
© 2019 Diane Etchison
Camissoniopsis lewisii
© 2016 William Jones

Campanula californica    Swamp harebell
rare native
Perennial herb (rhizomatous)

CAMPANULACEAE

Campanula californica
© 2023 Charles Russell
Campanula californica
© 2023 Suzanne L. Weakley
Campanula californica
© 2020 John Game

Campanula exigua    Chaparral harebell
rare native
Annual herb

CAMPANULACEAE

Campanula exigua
© 2019 David Greenberger
Campanula exigua
© 2019 David Greenberger
Campanula exigua
© 2019 David Greenberger

Campanula scabrella    Rough harebell
rare native
Perennial herb (rhizomatous)

CAMPANULACEAE

Campanula scabrella
© 2014 Steve Matson
Campanula scabrella
© 2014 Steve Matson
Campanula scabrella
© 2014 Steve Matson

Campanula sharsmithiae    Sharsmith's harebell
rare native
Annual herb

CAMPANULACEAE

Campanula sharsmithiae
© 2014 Chris Winchell
Campanula sharsmithiae
© 2011 Aaron Schusteff
Campanula sharsmithiae
© 2011 Aaron Schusteff

Campanula shetleri    Castle crag's harebell,  Castle crags harebell
rare native
Perennial herb (rhizomatous)

CAMPANULACEAE

Campanula shetleri
© 2019 Steve Matson
Campanula shetleri
© 2024 Dana York
Campanula shetleri
© 2019 Steve Matson

Campanula wilkinsiana    Wilkins' harebell
rare native
Perennial herb (rhizomatous)

CAMPANULACEAE

Campanula wilkinsiana
© 2022 Dana York
Campanula wilkinsiana
© 2018 Jane Cohn
Campanula wilkinsiana
© 2018 Jane Cohn

Campylopodiella stenocarpa    Flagella like atractylocarpus
rare native
Moss

DICRANACEAE


Canbya candida    Pygmy poppy,  White pygmypoppy
rare native
Annual herb

PAPAVERACEAE

Canbya candida
© 2024 Bob Steele
Canbya candida
© 2019 Matt Berger
Canbya candida
© 2015 Michael Charters

Cardamine angulata    Seaside bitter cress,  Seaside bittercress
rare native
Perennial herb

BRASSICACEAE

Cardamine angulata
© 2021 Dana York
Cardamine angulata
© 2021 Dana York
Cardamine angulata
© 2020 Susan McDougall

Cardamine bellidifolia var. pachyphylla    Alpine bitter cress,  Alpine bittercress,  Fleshy toothwort
rare native
Perennial herb

BRASSICACEAE

Cardamine bellidifolia var. pachyphylla
© 2018 Matt Berger
Cardamine bellidifolia var. pachyphylla
© 2018 Matt Berger
Cardamine bellidifolia var. pachyphylla
© 2004 Penn Martin II

Cardamine nuttallii var. gemmata    Nuttall's toothwort,  Yellow tubered toothwort
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Cardamine nuttallii var. gemmata
© 2007 Keir Morse
Cardamine nuttallii var. gemmata
© 2007 Keir Morse
Cardamine nuttallii var. gemmata
© 2007 Keir Morse

Cardamine pachystigma var. dissectifolia    Dissected leaf toothwort
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Cardamine pachystigma var. dissectifolia
© 2025 Mike Russler
Cardamine pachystigma var. dissectifolia
© 2025 Mike Russler
Cardamine pachystigma var. dissectifolia
© 2025 Mike Russler

Carex arcta    Bear sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex arcta
© 2006 Dean Wm. Taylor
Carex arcta
© 2006 Dean Wm. Taylor
Carex arcta
© 2006 Dean Wm. Taylor

Carex atherodes    Slough sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex atherodes
© 2015 Dean Taylor
Carex atherodes
© 2015 Dean Taylor
Carex atherodes
© 2009 Dean Wm. Taylor, Ph.D.

Carex buxbaumii    Buxbaum's sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex buxbaumii
© 2010 Steve Matson
Carex buxbaumii
© 2024 Donald Burk
Carex buxbaumii
© 2017 Steve Matson

Carex californica    California sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex californica
© 2020 Hayley Ross
Carex californica
© 2022 R.A. Chasey
Carex californica
© 2022 R.A. Chasey

Carex comosa    Bristly sedge,  Longhair sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex comosa
© 2003 Steve Matson
Carex comosa
© 1997 Dean Wm. Taylor
Carex comosa
© 2009 Kerry Heise

Carex congdonii    Congdon's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex congdonii
© 2022 John Rawlings
Carex congdonii
© 2018 Thomas Reyes
Carex congdonii
© 2022 John Rawlings

Carex cyrtostachya    Arching sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex cyrtostachya
© © 2016 Dean Wm. Taylor
Carex cyrtostachya
© 2016 Dean Wm. Taylor
Carex cyrtostachya
© 2020 Matt Berger

Carex davyi    Davy's sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex davyi
© 2020 Matt Berger
Carex davyi
© 2020 Matt Berger
Carex davyi
© 2020 Matt Berger

Carex duriuscula    Needleleaf sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex duriuscula
© 2015 Steve Matson
Carex duriuscula
© 2015 Steve Matson
Carex duriuscula
© 2003 Steve Matson

Carex geyeri    Elk sedge,  Elkgrass,  Geyer's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex geyeri
© 2024 Matt Berger
Carex geyeri
© 2015 Steve Matson
Carex geyeri
© 2015 Steve Matson

Carex halliana    Hall's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex halliana
© 2022 Dana York
Carex halliana
© 2019 Matt C. Berger
Carex halliana
© 2008 Sean B. Smith

Carex hystericina    Bottlebrush sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex hystericina
© 2003 Steve Matson
Carex hystericina
© 2003 Steve Matson

Carex idahoa    Idaho sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex idahoa
© 2012 Dylan Neubauer
Carex idahoa
© 2004 Steve Matson

Carex incurviformis    Coastal sand sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex incurviformis
© 2016 Steve Matson
Carex incurviformis
© 2016 Steve Matson
Carex incurviformis
© 2016 Steve Matson

rare native
Perennial grasslike herb

CYPERACEAE


Carex lasiocarpa    Slender sedge,  Woolly fruited sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex lasiocarpa
© 2014 Robert L. Carr
Carex lasiocarpa
© 2014 Robert L. Carr
Carex lasiocarpa
© 2014 Robert L. Carr

Carex lenticularis var. limnophila    Lakeshore sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex lenticularis var. limnophila
© 2003 Steve Matson
Carex lenticularis var. limnophila
© 2003 Steve Matson
Carex lenticularis var. limnophila
© 2003 Steve Matson

Carex leptalea    Bristlestalked sedge,  Flaccid sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex leptalea
© 2024 Matt C. Berger
Carex leptalea
© 2024 Matt C. Berger
Carex leptalea
© 2024 Matt C. Berger

Carex limosa    Mud sedge,  Shore sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex limosa
© 2009 Steve Matson
Carex limosa
© 2020 Bob Sweatt
Carex limosa
© 2019 Matt Berger

Carex livida    Livid sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex livida
© University and Jepson Herbaria

Carex lyngbyei    Lyngbye's sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex lyngbyei
© 2017 Steve Matson
Carex lyngbyei
© 2017 Steve Matson
Carex lyngbyei
© 2021 Chris Brant

Carex nardina    Spike sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex nardina
© 2011 Dana York
Carex nardina
© 2011 Dana York
Carex nardina
© 2018 Susan McDougall

Carex obispoensis    San Luis Obispo sedge,  San Luis sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex obispoensis
© 2006 Steve Matson
Carex obispoensis
© 2012 Wendy Fisher
Carex obispoensis
© 2006 Steve Matson

Carex occidentalis    Western sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex occidentalis
© 2016 Steve Matson
Carex occidentalis
© 2016 Steve Matson
Carex occidentalis
© 2016 Steve Matson

Carex petasata    Liddon sedge,  Liddon's sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex petasata
© 2009 Sierra Pacific Industries
Carex petasata
© 2021 Matt Berger
Carex petasata
© 2021 Matt Berger

Carex praticola    Meadow sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex praticola
© 2013 Scot Loring
Carex praticola
© 2013 Scot Loring
Carex praticola
© 2013 Scot Loring

Carex saliniformis    Salt sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex saliniformis
© 2003 Steve Matson
Carex saliniformis
© 2003 Steve Matson
Carex saliniformis
© 2011 Halleh Paymard

Carex scabriuscula    Siskiyou sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex scabriuscula
© 2014 Steve Matson
Carex scabriuscula
© 2014 Steve Matson
Carex scabriuscula
© 2014 Steve Matson

Carex scirpoidea ssp. pseudoscirpoidea    Single spiked sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex scirpoidea ssp. pseudoscirpoidea
© 2009 Steve Matson
Carex scirpoidea ssp. pseudoscirpoidea
© 2016 Steve Matson
Carex scirpoidea ssp. pseudoscirpoidea
© 2009 Steve Matson

Carex scoparia var. scoparia    Pointed broomsedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex scoparia var. scoparia
© 2003 Steve Matson
Carex scoparia var. scoparia
© 2003 Steve Matson

Carex serpenticola    Serpentine sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex serpenticola
© 2024 Ryan O'Dell
Carex serpenticola
© 2016 Dana York
Carex serpenticola
© 2016 Dana York

Carex sheldonii    Sheldon's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex sheldonii
© 2015 Steve Matson
Carex sheldonii
© 2015 Steve Matson
Carex sheldonii
© 2015 Steve Matson

Carex stevenii    Steven's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex stevenii
© 2003 Steve Matson
Carex stevenii
© 2003 Steve Matson

Carex tahoensis    Tahoe sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex tahoensis
© 2003 Steve Matson
Carex tahoensis
© 2003 Steve Matson
Carex tahoensis
© 2003 Steve Matson

Carex tiogana    Tioga pass sedge,  Tioga sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex tiogana
© 2019 Dean Wm. Taylor
Carex tiogana
© 1995 Dean Wm. Taylor
Carex tiogana
© 2003 Steve Matson

Carex tompkinsii    Thompkins' sedge,  Tompkins's sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Carex tompkinsii
© 2018 Steve Matson
Carex tompkinsii
© 2018 Steve Matson
Carex tompkinsii
© 2018 Steve Matson

Carex vallicola    Valley sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex vallicola
© 1998 Dean Wm. Taylor
Carex vallicola
© 2003 Steve Matson

Carex viridula ssp. viridula    Little green sedge
rare native
Perennial grasslike herb

CYPERACEAE

Carex viridula ssp. viridula
© 2020 Dana York
Carex viridula ssp. viridula
© 2020 Dana York
Carex viridula ssp. viridula
© 2020 Dana York

Carex xerophila    chaparral sedge
rare native
Perennial herb

CYPERACEAE

Carex xerophila
© 2020 Robert Katz
Carex xerophila
© 2020 Matt Berger
Carex xerophila
© 2020 Robert Katz

Carlowrightia arizonica    Arizona carlowrightia
rare native
Shrub

ACANTHACEAE

Carlowrightia arizonica
© 2017 Fred Melgert / Carla Hoegen
Carlowrightia arizonica
© 2020 Matt Berger
Carlowrightia arizonica
© 2017 Fred Melgert / Carla Hoegen

Carlquistia muirii    Muir's tarplant
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Carlquistia muirii
© 2019 Jacob Smith
Carlquistia muirii
© 2021 David Greenberger
Carlquistia muirii
© 2021 David Greenberger

Carnegiea gigantea    Saguaro, giant cactus
rare native
Shrub (stem succulent)

CACTACEAE

Carnegiea gigantea
© 2019 Richard Spjut
Carnegiea gigantea
© 2008 Neal Kramer
Carnegiea gigantea
© 2010 Lee Dittmann

Carpenteria californica    Bush anemone,  Tree anemone
rare native
Shrub

HYDRANGEACEAE

Carpenteria californica
© 2017 Staci Markos
Carpenteria californica
© 2018 Mike Russler
Carpenteria californica
© 2021 Mike Russler

Cascadia nuttallii    Nuttall's saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Cascadia nuttallii
© 2023 Dana York
Cascadia nuttallii
© 2013 Dana York
Cascadia nuttallii
© 2013 Dana York

Castela emoryi    Crucifixion thorn
rare native
Shrub

SIMAROUBACEAE

Castela emoryi
© 2020 David Greenberger
Castela emoryi
© 2020 Joey Santore
Castela emoryi
© 2020 Joey Santore

Castilleja affinis var. neglecta    Tiburon paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja affinis var. neglecta
© 2022 R.A. Chasey
Castilleja affinis var. neglecta
© 2022 R.A. Chasey
Castilleja affinis var. neglecta
© 2021 R.A. Chasey

rare native
Annual herb

OROBANCHACEAE

Castilleja ambigua var. ambigua
© 2024 R.A. Chasey
Castilleja ambigua var. ambigua
© 2016 Asa & Teresa Spade
Castilleja ambigua var. ambigua
© 2024 R.A. Chasey

Castilleja ambigua var. humboldtiensis    Humboldt bay owl's-clover
rare native
Annual herb

OROBANCHACEAE

Castilleja ambigua var. humboldtiensis
© 2023 Steve Conger
Castilleja ambigua var. humboldtiensis
© 2022 Cynthia Adkisson
Castilleja ambigua var. humboldtiensis
© 2020 Mary Ann Machi

Castilleja ambigua var. insalutata    Pink johnny-nip
rare native
Annual herb

OROBANCHACEAE

Castilleja ambigua var. insalutata
© Terry Gosliner
Castilleja ambigua var. insalutata
© Brett Bell
Castilleja ambigua var. insalutata
© Irene Rosen

Castilleja ambigua var. meadii    Mead's owl's-clover
rare native
Annual herb

OROBANCHACEAE

Castilleja ambigua var. meadii
© 2018 Hannah Aclufi
Castilleja ambigua var. meadii
© 2018 Hannah Aclufi
Castilleja ambigua var. meadii
© 2018 Jake Ruygt

Castilleja brevilobata    Short-lobed paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja brevilobata
© 2023 Dana York
Castilleja brevilobata
© 2023 Dana York
Castilleja brevilobata
© 2023 Dana York

Castilleja campestris var. succulenta    Succulent owl's-clover
rare native
Annual herb

OROBANCHACEAE

Castilleja campestris var. succulenta
© 2009 Neal Kramer
Castilleja campestris var. succulenta
© 2011 Dylan Neubauer
Castilleja campestris var. succulenta
© 2005 John Game

Castilleja cinerea    Ash gray indian paintbrush,  Ashgray indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja cinerea
© 2018 Diane Etchison
Castilleja cinerea
© 2024 Luz Quinnell
Castilleja cinerea
© 2023 R.A. Chasey

Castilleja densiflora var. obispoensis    San luis obispo owl's-clover
rare native
Annual herb

OROBANCHACEAE

Castilleja densiflora var. obispoensis
© 2025 Kyle Suchy
Castilleja densiflora var. obispoensis
© 2025 Kyle Suchy
Castilleja densiflora var. obispoensis
© 2025 Kyle Suchy

Castilleja elata    Siskiyou paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja elata
© 2023 Dana York
Castilleja elata
© 2023 Dana York
Castilleja elata
© 2005 Norman Jensen

Castilleja gleasoni    Mt. Gleason paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja gleasoni
© 2023 Keir Morse
Castilleja gleasoni
© Geoff Burleigh
Castilleja gleasoni
© Geoff Burleigh

Castilleja grisea    San clemente island indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja grisea
© 2011 Dylan Neubauer
Castilleja grisea
© 2011 Dylan Neubauer
Castilleja grisea
© 2011 Dylan Neubauer

Castilleja hololeuca    Island white-felted paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja hololeuca
© 2014 Steve Matson
Castilleja hololeuca
© 2014 Steve Matson
Castilleja hololeuca
© 2014 Steve Matson

Castilleja lasiorhyncha    San bernardino mountains owl's clover,  San bernardino mtns. owl's clover
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Castilleja lasiorhyncha
© 2020 Diane Etchison
Castilleja lasiorhyncha
© 2023 Diane Etchison
Castilleja lasiorhyncha
© 2019 Diane Etchison

Castilleja lassenensis    Lassen paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja lassenensis
© 2023 Dana York
Castilleja lassenensis
© 2023 Dana York
Castilleja lassenensis
© 2023 Dana York

Castilleja latifolia    Monterey indian paintbrush,  Seaside paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja latifolia
© 2004 Keir Morse
Castilleja latifolia
© 2004 Keir Morse
Castilleja latifolia
© 2020 Mary Conway

Castilleja leschkeana    Point reyes paintbrush
rare native
Perennial herb

OROBANCHACEAE


Castilleja litoralis    Oregon coast paintbrush
rare native
Perennial herb

OROBANCHACEAE

Castilleja litoralis
© 2024 Mary Ann Machi
Castilleja litoralis
© 2024 Mary Ann Machi
Castilleja litoralis
© 2010 Vernon Smith

Castilleja mendocinensis    Mendocino coast paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja mendocinensis
© 2022 R.A. Chasey
Castilleja mendocinensis
© 2016 R. Adam Chasey
Castilleja mendocinensis
© 2016 Asa & Teresa Spade

Castilleja mollis    Soft leaved indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja mollis
© © 2000 John Game
Castilleja mollis
© © 2000 John Game

Castilleja montigena    Heckard's indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja montigena
© 2023 R.A. Chasey
Castilleja montigena
© 2019 Diane Etchison
Castilleja montigena
© 2019 Diane Etchison

Castilleja plagiotoma    Mojave indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja plagiotoma
© 2016 Keir Morse
Castilleja plagiotoma
© 2019 Matt Berger
Castilleja plagiotoma
© 2011 Neal Kramer

rare native
Annual herb

OROBANCHACEAE

Castilleja rubicundula var. rubicundula
© 2021 Charles Russell
Castilleja rubicundula var. rubicundula
© 2019 Rachel Aine
Castilleja rubicundula var. rubicundula
© 2019 Rachel Aine

Castilleja schizotricha    Split hair indian paintbrush,  Splithair indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja schizotricha
© 2022 Dana York
Castilleja schizotricha
© 2022 Dana York
Castilleja schizotricha
© 2023 Dana York

Castilleja uliginosa    Pitkin marsh indian paintbrush
rare native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja uliginosa
© 2002 John Game
Castilleja uliginosa
© 2002 John Game
Castilleja uliginosa
© 2002 John Game

Catabrosa aquatica    water whorlgrass
rare native
Perennial herb

POACEAE

Catabrosa aquatica
© 2024 Matt Berger
Catabrosa aquatica
© 2024 Matt Berger
Catabrosa aquatica
© 2024 Matt Berger

Caulanthus amplexicaulis var. barbarae    Claspingleaf wild cabbage,  Santa barbara jewelflower
rare native
Annual herb

BRASSICACEAE

Caulanthus amplexicaulis var. barbarae
© 2023 Bryant Baker
Caulanthus amplexicaulis var. barbarae
© 2023 Bryant Baker
Caulanthus amplexicaulis var. barbarae
© 2023 Zach Kinman

Caulanthus californicus    California jewelflower
rare native
Annual herb

BRASSICACEAE

Caulanthus californicus
© 2023 Mike Russler
Caulanthus californicus
© 2019 Adam Chasey
Caulanthus californicus
© 2023 Mike Russler

Caulanthus lemmonii    Lemmon's jewelflower,  Lemmon's wild cabbage
rare native
Annual herb

BRASSICACEAE

Caulanthus lemmonii
© 2016 Nathan Wickstrum
Caulanthus lemmonii
© 2016 Nathan Wickstrum
Caulanthus lemmonii
© 2016 Nathan Wickstrum

Caulanthus major var. nevadensis    Sierra nevada wild cabbage,  Slender wild cabbage
rare native
Perennial herb

BRASSICACEAE

Caulanthus major var. nevadensis
© 2023 Chloe and Trevor Van Loon
Caulanthus major var. nevadensis
© 2023 Chloe and Trevor Van Loon
Caulanthus major var. nevadensis
© 2023 Chloe and Trevor Van Loon

Caulanthus simulans    Payson's wild cabbage
rare native
Annual herb

BRASSICACEAE

Caulanthus simulans
© 2019 Matt Berger
Caulanthus simulans
© 2019 Matt Berger
Caulanthus simulans
© 2019 Matt Berger

Ceanothus confusus    Rincon ridge ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus confusus
© 2021 R.A. Chasey
Ceanothus confusus
© 2021 R.A. Chasey
Ceanothus confusus
© 2021 R.A. Chasey

Ceanothus cuneatus var. fascicularis    Sand buck brush,  Sedgeleaf buckbrush
rare native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. fascicularis
© 2024 Mike Russler
Ceanothus cuneatus var. fascicularis
© 2022 Cynthia Powell
Ceanothus cuneatus var. fascicularis
© 2019 Bryant Baker

Ceanothus cyaneus    Lakeside ceanothus,  San diego buckbrush,  San diego ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus cyaneus
© 2017 Stacey Vielma
Ceanothus cyaneus
© 2017 Stacey Vielma
Ceanothus cyaneus
© 2012 Sherie Hubble

Ceanothus decornutus    Nicasio ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus decornutus
© 2022 Hunter Breck
Ceanothus decornutus
© 2019 Hunter Breck
Ceanothus decornutus
© 2022 Hunter Breck

Ceanothus divergens    Calistoga ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus divergens
© 2019 Susan McDougall
Ceanothus divergens
© 2019 Susan McDougall
Ceanothus divergens
© 2021 R.A. Chasey

Ceanothus ferrisiae    Coyote ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus ferrisiae
© 2020 R.A. Chasey
Ceanothus ferrisiae
© 2020 R.A. Chasey
Ceanothus ferrisiae
© 2019 Ken Hickman

Ceanothus foliosus var. viejasensis    Viejas Mountain ceanothus
rare native
Shrub

RHAMNACEAE


Ceanothus foliosus var. vineatus    Vine hill ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus foliosus var. vineatus
© 2019 David Magney
Ceanothus foliosus var. vineatus
© 2017 Adam Chasey
Ceanothus foliosus var. vineatus
© 2017 Adam Chasey

Ceanothus fresnensis    Fresno ceanothus,  Fresno mat
rare native
Shrub

RHAMNACEAE

Ceanothus fresnensis
© 2021 Mike Russler
Ceanothus fresnensis
© 2021 Mike Russler
Ceanothus fresnensis
© 2024 Mike Russler

Ceanothus gloriosus var. exaltatus    Glory brush,  Point reyes ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus gloriosus var. exaltatus
© 2021 Hunter Breck
Ceanothus gloriosus var. exaltatus
© 2021 Hunter Breck
Ceanothus gloriosus var. exaltatus
© 2025 Mike Russler

Ceanothus gloriosus var. gloriosus    Point reyes ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus gloriosus var. gloriosus
© 2020 Hunter Breck
Ceanothus gloriosus var. gloriosus
© 2020 R.A. Chasey
Ceanothus gloriosus var. gloriosus
© 2020 R.A. Chasey

Ceanothus gloriosus var. porrectus    Inverness ceanothus,  Mt. vision ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus gloriosus var. porrectus
© 2020 Hunter Breck
Ceanothus gloriosus var. porrectus
© 2021 R.A. Chasey
Ceanothus gloriosus var. porrectus
© 2021 R.A. Chasey

Ceanothus hearstiorum    Hearst ranch buckbrush,  Hearst's ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus hearstiorum
© 2009 Jean Pawek
Ceanothus hearstiorum
© 2009 Jean Pawek
Ceanothus hearstiorum
© 2009 Jean Pawek

Ceanothus maritimus    Maritime ceanothus,  San luis obispo ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus maritimus
© 2019 R.A. Chasey
Ceanothus maritimus
© 2019 Susan McDougall
Ceanothus maritimus
© 2022 Cindy Roessler

Ceanothus masonii    Bolinas ceanothus,  Mason's ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus masonii
© 2021 Hunter Breck
Ceanothus masonii
© 2015 Linda Vassallo
Ceanothus masonii
© 2019 R.A. Chasey

Ceanothus megacarpus var. insularis    Island bigpod ceanothus,  Island ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus megacarpus var. insularis
© 2014 Steve Matson
Ceanothus megacarpus var. insularis
© 2014 Steve Matson
Ceanothus megacarpus var. insularis
© 2014 Steve Matson

Ceanothus ophiochilus    Vail lake ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus ophiochilus
© 2004 Brian Parker
Ceanothus ophiochilus
© 2004 Brian Parker

Ceanothus otayensis    Otay mountain ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus otayensis
© 2019 Susan McDougall
Ceanothus otayensis
© 2021 Ron Vanderhoff
Ceanothus otayensis
© 2019 Susan McDougall

Ceanothus pendletonensis    Pendleton ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus pendletonensis
© 2019 Ron Vanderhoff
Ceanothus pendletonensis
© 2019 Ron Vanderhoff
Ceanothus pendletonensis
© 2019 Ron Vanderhoff

Ceanothus pinetorum    Coville ceanothus,  Kern ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus pinetorum
© 2021 Dana York
Ceanothus pinetorum
© 2023 Aidan Marshall
Ceanothus pinetorum
© 2023 Aidan Marshall

Ceanothus purpureus    Hollyleaf ceanothus,  Napa ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus purpureus
© 2020 R.A. Chasey
Ceanothus purpureus
© 2015 James Gonsman
Ceanothus purpureus
© 2020 R.A. Chasey

Ceanothus rigidus    Monterey ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus rigidus
© 2021 Emily Poor
Ceanothus rigidus
© 2018 Gary McDonald
Ceanothus rigidus
© 2018 Gary McDonald

Ceanothus roderickii    Pine hill buckbrush,  Pine hill ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus roderickii
© 2020 Matt Berger
Ceanothus roderickii
© 2020 Matt Berger
Ceanothus roderickii
© 2020 Matt Berger

Ceanothus sonomensis    Sonoma ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus sonomensis
© 2023 Suzanne L. Weakley
Ceanothus sonomensis
© 2023 Michelle Karle
Ceanothus sonomensis
© 2023 Michelle Karle

Ceanothus thyrsiflorus var. obispoensis    San Luis Obispo ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus thyrsiflorus var. obispoensis
© 2020 David Greenberger
Ceanothus thyrsiflorus var. obispoensis
© 2020 David Greenberger
Ceanothus thyrsiflorus var. obispoensis
© 2020 David Greenberger

Ceanothus verrucosus    Barranca brush,  White coast ceanothus,  Wart-Stemmed Ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus verrucosus
© 2024 Karen Fraser
Ceanothus verrucosus
© 2019 Diane Etchison
Ceanothus verrucosus
© 2015 Ron Vanderhoff

Centromadia parryi ssp. australis    Southern tarplant
rare native
Annual herb

ASTERACEAE

Centromadia parryi ssp. australis
© 2019 Ron Vanderhoff
Centromadia parryi ssp. australis
© 2018 Ron Vanderhoff
Centromadia parryi ssp. australis
© 2023 Elizabeth Lockhart

Centromadia parryi ssp. congdonii    Congdon's tarplant
rare native
Annual herb

ASTERACEAE

Centromadia parryi ssp. congdonii
© 2024 Ken-ichi Ueda
Centromadia parryi ssp. congdonii
© 2023 Jordan Collins
Centromadia parryi ssp. congdonii
© 2024 Ken-ichi Ueda

Centromadia parryi ssp. parryi    Pappose tarplant
rare native
Annual herb

ASTERACEAE

Centromadia parryi ssp. parryi
© 2009 Toni Corelli
Centromadia parryi ssp. parryi
© 2009 Toni Corelli
Centromadia parryi ssp. parryi
© 2009 Toni Corelli

Centromadia parryi ssp. rudis    Pappose tarweed
rare native
Annual herb

ASTERACEAE

Centromadia parryi ssp. rudis
© 2024 Mike Russler
Centromadia parryi ssp. rudis
© 2024 Mike Russler
Centromadia parryi ssp. rudis
© 2022 Ryan O'Dell

Centromadia pungens ssp. laevis    Smooth tarplant
rare native
Annual herb

ASTERACEAE

Centromadia pungens ssp. laevis
© 2022 Eric Koberle
Centromadia pungens ssp. laevis
© 2022 Eric Koberle
Centromadia pungens ssp. laevis
© 2022 Eric Koberle

Cercocarpus betuloides var. blancheae    Catalinamahogany,  Island mountain mahogany
rare native
Shrub

ROSACEAE

Cercocarpus betuloides var. blancheae
© 2014 Steve Matson
Cercocarpus betuloides var. blancheae
© 2014 Steve Matson
Cercocarpus betuloides var. blancheae
© 2014 Steve Matson

Cercocarpus traskiae    Catalina island mountain mahogany
rare native
Shrub

ROSACEAE

Cercocarpus traskiae
© 2019 Aaron Echols
Cercocarpus traskiae
© 2019 Aaron Echols
Cercocarpus traskiae
© 1993 Dean Wm. Taylor

Chaenactis carphoclinia var. peirsonii    Peirson's pincushion
rare native
Annual herb

ASTERACEAE

Chaenactis carphoclinia var. peirsonii
© © 2016 Fred Melgert
Chaenactis carphoclinia var. peirsonii
© 2016 Fred Melgert
Chaenactis carphoclinia var. peirsonii
© 2016 Fred Melgert

Chaenactis douglasii var. alpina    Alpine dusty pincushion
rare native
Perennial herb

ASTERACEAE

Chaenactis douglasii var. alpina
© 2007 Steve Matson
Chaenactis douglasii var. alpina
© 2007 Steve Matson
Chaenactis douglasii var. alpina
© 2007 Steve Matson

Chaenactis glabriuscula var. orcuttiana    Orcutt's yellow chaenactis,  Orcutt's yellow pincushion
rare native
Annual herb

ASTERACEAE

Chaenactis glabriuscula var. orcuttiana
© 2024 Ron Vanderhoff
Chaenactis glabriuscula var. orcuttiana
© 2024 Ron Vanderhoff
Chaenactis glabriuscula var. orcuttiana
© 2024 Ron Vanderhoff

Chaenactis parishii    Parish's chaenactis
rare native
Perennial herb

ASTERACEAE

Chaenactis parishii
© 2015 Keir Morse
Chaenactis parishii
© 2015 Keir Morse
Chaenactis parishii
© 2015 Keir Morse

Chaenactis suffrutescens    Shasta chaenactis
rare native
Perennial herb

ASTERACEAE

Chaenactis suffrutescens
© 2015 Steve Matson
Chaenactis suffrutescens
© 2015 Steve Matson
Chaenactis suffrutescens
© 2015 Steve Matson

Chaetadelpha wheeleri    Wheeler's chaetadelpha,  Wheeler's skeletonweed
rare native
Perennial herb

ASTERACEAE

Chaetadelpha wheeleri
© 2005 Steve Matson
Chaetadelpha wheeleri
© 2005 Steve Matson
Chaetadelpha wheeleri
© 2005 Steve Matson

Chamaebatia australis    Southern bearclover,  Southern mountain misery
rare native
Shrub

ROSACEAE

Chamaebatia australis
© 2023 Matt Berger
Chamaebatia australis
© 2023 Matt Berger
Chamaebatia australis
© 2024 Mike Russler

Chenopodium littoreum    Coastal goosefoot
rare native
Annual herb

CHENOPODIACEAE

Chenopodium littoreum
© 2014 John Sayers
Chenopodium littoreum
© 2014 John Sayers
Chenopodium littoreum
© 2012 Terrence Gosliner

Chenopodium simplex    Large seeded goosefoot,  Mapleleaf goosefoot
rare native
Annual herb

CHENOPODIACEAE

Chenopodium simplex
© 2006 Louis-M. Landry
Chenopodium simplex
© 2016 Keir Morse
Chenopodium simplex
© 2005 Larry Blakely

Chlorogalum grandiflorum    Red hills soap plant,  Red hills soaproot
rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum grandiflorum
© 2022 Cynthia Powell
Chlorogalum grandiflorum
© 2019 David Greenberger
Chlorogalum grandiflorum
© 2022 Cynthia Powell

Chlorogalum pomeridianum var. minus    Dwarf soaproot,  Wavyleaf soap plant
rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum pomeridianum var. minus
© 1997 Dean Wm. Taylor
Chlorogalum pomeridianum var. minus
© 2011 Dean Wm. Taylor, Ph.D.
Chlorogalum pomeridianum var. minus
© 2011 Dean Wm. Taylor, Ph.D.

rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum purpureum var. purpureum
© 2004 Laura Ann Eliassen
Chlorogalum purpureum var. purpureum
© 2017 Heather Schneider
Chlorogalum purpureum var. purpureum
© 2006 Aaron Schusteff

Chlorogalum purpureum var. reductum    Camatta canyon amole
rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum purpureum var. reductum
© 2011 Jeffrey Hapeman
Chlorogalum purpureum var. reductum
© 2013 Chris Winchell
Chlorogalum purpureum var. reductum
© 2017 John B. Moule

Chloropyron maritimum ssp. maritimum    Salt marsh bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron maritimum ssp. maritimum
© 2018 Ron Vanderhoff
Chloropyron maritimum ssp. maritimum
© 2020 Ron Vanderhoff
Chloropyron maritimum ssp. maritimum
© 2019 Bonnie Nickel

Chloropyron maritimum ssp. palustre    Point reyes bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron maritimum ssp. palustre
© 2018 Saskia Raether
Chloropyron maritimum ssp. palustre
© 2018 Michael Perlmutter
Chloropyron maritimum ssp. palustre
© 2018 Saskia Raether

Chloropyron molle ssp. hispidum    Hispid bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron molle ssp. hispidum
© 2019 David Greenberger
Chloropyron molle ssp. hispidum
© 2023 Chloe and Trevor Van Loon
Chloropyron molle ssp. hispidum
© 2012 Douglas Wirtz

Chloropyron molle ssp. molle    Soft bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron molle ssp. molle
© 2021 Scott Yarger
Chloropyron molle ssp. molle
© 2018 Kevin Sherrill
Chloropyron molle ssp. molle
© 2021 Denise Defreese

Chloropyron palmatum    Palmate-bracted bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron palmatum
© 2019 David Greenberger
Chloropyron palmatum
© 2022 Charles Russell
Chloropyron palmatum
© 2024 Mike Russler

Chloropyron tecopense    Tecopa bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron tecopense
© 2015 John Doyen
Chloropyron tecopense
© 2015 John Doyen
Chloropyron tecopense
© 2024 Matt Berger

Chorizanthe aphanantha    Irish Hills spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe aphanantha
© 2020 David Greenberger
Chorizanthe aphanantha
© 2024 David Wolfson
Chorizanthe aphanantha
© 2021 Kristen Nelson

Chorizanthe biloba var. immemora    San benito spineflower,  Twolobe spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe biloba var. immemora
© 2022 Mike Russler
Chorizanthe biloba var. immemora
© 2022 Mike Russler
Chorizanthe biloba var. immemora
© 2022 Mike Russler

Chorizanthe blakleyi    Blakley's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe blakleyi
© 2014 Chris Winchel
Chorizanthe blakleyi
© Donald Myrick1999 California Academy of Sciences
Chorizanthe blakleyi
© 2014 Chris Winchell

Chorizanthe breweri    Brewer's spineflower,  San luis obispo spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe breweri
© 2020 David Greenberger
Chorizanthe breweri
© 2020 David Greenberger
Chorizanthe breweri
© 2023 Mike Russler

Chorizanthe cuspidata var. cuspidata    San francisco bay spineflower,  San francisco spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe cuspidata var. cuspidata
© 2021 John Rawlings
Chorizanthe cuspidata var. cuspidata
© 2022 Mike Russler
Chorizanthe cuspidata var. cuspidata
© 2021 R.A. Chasey

Chorizanthe cuspidata var. villosa    San francisco spineflower,  Woolly headed spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe cuspidata var. villosa
© 2021 R.A. Chasey
Chorizanthe cuspidata var. villosa
© 2017 James Gonsman
Chorizanthe cuspidata var. villosa
© 2021 Cynthia Powell

Chorizanthe douglasii    Douglas's spineflower,  San benito spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe douglasii
© 2022 Irene Rosen
Chorizanthe douglasii
© 2019 David Greenberger
Chorizanthe douglasii
© 2022 Irene Rosen

Chorizanthe howellii    Howell's spineflower,  Mendocino spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe howellii
© 2022 Sara Timby
Chorizanthe howellii
© 2020 Zoya Akulova-Barlow
Chorizanthe howellii
© Asa Spade

Chorizanthe leptotheca    Peninsular spineflower,  Ramona spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe leptotheca
© 2021 Aaron Echols
Chorizanthe leptotheca
© 2024 Nathan Taylor
Chorizanthe leptotheca
© 2021 Ron Vanderhoff

Chorizanthe minutiflora    Fort ord spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe minutiflora
© 2023 Matt Berger
Chorizanthe minutiflora
© 2023 Matt Berger
Chorizanthe minutiflora
© 2013 Paul Preston

Chorizanthe orcuttiana    Orcutt's spineflower,  San diego spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe orcuttiana
© 2015 David Varner
Chorizanthe orcuttiana
© 2015 Keir Morse
Chorizanthe orcuttiana
© 2009 Michelle Cloud-Hughes

Chorizanthe palmeri    Palmer's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe palmeri
© 2019 David Greenberger
Chorizanthe palmeri
© 2012 Terrence Gosliner
Chorizanthe palmeri
© 2023 Mike Russler

Chorizanthe parryi var. fernandina    San fernando valley spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe parryi var. fernandina
© 2008 Anuja Parikh and Nathan Gale
Chorizanthe parryi var. fernandina
© 2001 Kevin Merk
Chorizanthe parryi var. fernandina
© 2015 Anuja Parikh and Nathan Gale

Chorizanthe parryi var. parryi    Parry's spineflower,  San bernardino spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe parryi var. parryi
© 2020 Aaron Echols
Chorizanthe parryi var. parryi
© 2012 Keir Morse
Chorizanthe parryi var. parryi
© 2020 Aaron Echols

Chorizanthe polygonoides var. longispina    Knotweed spineflower,  Long spined spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols
Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols
Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols

Chorizanthe pungens var. hartwegiana    Ben lomond spineflower,  Hartweg's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe pungens var. hartwegiana
© 2018 Cara Wilcox
Chorizanthe pungens var. hartwegiana
© 2024 Kevin Sherrill
Chorizanthe pungens var. hartwegiana
© 2024 Chloe and Trevor Van Loon

Chorizanthe pungens var. pungens    Monterey spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe pungens var. pungens
© 2019 Gena Bentall
Chorizanthe pungens var. pungens
© 2022 R.A. Chasey
Chorizanthe pungens var. pungens
© 2022 R.A. Chasey

Chorizanthe rectispina    Prickly spineflower,  Straight awned spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe rectispina
© 2025 Mike Russler
Chorizanthe rectispina
© 2025 Mike Russler
Chorizanthe rectispina
© 2025 Mike Russler

Chorizanthe robusta var. hartwegii    Robust spineflower,  Scott's valley spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe robusta var. hartwegii
© 2023 Steven Mills Glascock
Chorizanthe robusta var. hartwegii
© 2023 Steven Mills Glascock
Chorizanthe robusta var. hartwegii
© 2022 Steven Mills Glascock

Chorizanthe robusta var. robusta    Robust spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe robusta var. robusta
© 2020 Ryan Carle
Chorizanthe robusta var. robusta
© 2020 Ryan Carle
Chorizanthe robusta var. robusta
© 2020 Ryan Carle

Chorizanthe spinosa    Mojave spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe spinosa
© 2019 Matt Berger
Chorizanthe spinosa
© 2019 Matt Berger
Chorizanthe spinosa
© 2019 Matt Berger

Chorizanthe valida    Sonoma spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe valida
© 2019 Scott Yarger
Chorizanthe valida
© 2024 R.A. Chasey
Chorizanthe valida
© 2024 R.A. Chasey

Chorizanthe ventricosa    Priest valley spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe ventricosa
© 2014 Neal Kramer
Chorizanthe ventricosa
© 2023 Ryan O'Dell
Chorizanthe ventricosa
© 2014 Neal Kramer

Chorizanthe wheeleri    Santa barbara spineflower,  Wheeler's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe wheeleri
© 2020 Sean Carson
Chorizanthe wheeleri
© 2020 Sean Carson
Chorizanthe wheeleri
© 2022 Kyle Suchy

Chorizanthe xanti var. leucotheca    Riverside spineflower,  White bracted spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe xanti var. leucotheca
© 2021 Aaron Echols
Chorizanthe xanti var. leucotheca
© 2021 Kim Schaefer
Chorizanthe xanti var. leucotheca
© 2021 Aaron Echols

Chrysosplenium glechomifolium    Pacific golden saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Chrysosplenium glechomifolium
© 2013 James Gonsman
Chrysosplenium glechomifolium
© 2021 Dillon Doss
Chrysosplenium glechomifolium
© 2019 Jonathan Lee

Chrysothamnus greenei    Greene's rabbitbrush
rare native
Shrub

ASTERACEAE

Chrysothamnus greenei
© 2012 Lynn Robertson
Chrysothamnus greenei
© 2009 James M. Andre
Chrysothamnus greenei
© 2009 James M. Andre

Chylismia arenaria    Sand evening-primrose
rare native
Annual, Perennial herb

ONAGRACEAE

Chylismia arenaria
© 2012 Keir Morse
Chylismia arenaria
© 2012 Keir Morse
Chylismia arenaria
© 2012 Keir Morse

Chylismia claviformis ssp. cruciformis    Cruciform evening-primrose
rare native
Annual, Perennial herb

ONAGRACEAE

Chylismia claviformis ssp. cruciformis
© 2003 Yulan Tong
Chylismia claviformis ssp. cruciformis
© 2010 Bill Harnach
Chylismia claviformis ssp. cruciformis
© 2010 Bill Harnach

Cicuta maculata var. bolanderi    Saltmarsh water hemlock,  Spotted water hemlock
rare native
Perennial herb

APIACEAE

Cicuta maculata var. bolanderi
© 2022 Morgan Stickrod
Cicuta maculata var. bolanderi
© 2022 Morgan Stickrod
Cicuta maculata var. bolanderi
© 2022 Morgan Stickrod

Cinna bolanderi    Bolander's woodreed
rare native
Perennial grass

POACEAE

Cinna bolanderi
© 2021 Jacob Smith
Cinna bolanderi
© 2021 Jacob Smith
Cinna bolanderi
© 2023 Jacob Smith

Cirsium andrewsii    Franciscan thistle
rare native
Perennial herb

ASTERACEAE

Cirsium andrewsii
© 2023 R.A. Chasey
Cirsium andrewsii
© 2023 R.A. Chasey
Cirsium andrewsii
© 2011 Scott Cox

Cirsium arizonicum var. tenuisectum    Desert mountain thistle
rare native
Perennial herb

ASTERACEAE

Cirsium arizonicum var. tenuisectum
© 2020 David Greenberger
Cirsium arizonicum var. tenuisectum
© 2009 James M. Andre
Cirsium arizonicum var. tenuisectum
© 2004 James M. Andre

Cirsium ciliolatum    Ashland thistle
rare native
Perennial herb

ASTERACEAE

Cirsium ciliolatum
© 2017 Gerald Carr
Cirsium ciliolatum
© 2017 Gerald Carr
Cirsium ciliolatum
© 2017 Gerald Carr

Cirsium crassicaule    Slough thistle
rare native
Annual, Perennial herb

ASTERACEAE

Cirsium crassicaule
© 2020 Steve Laymon
Cirsium crassicaule
© 2020 Steve Laymon
Cirsium crassicaule
© 2020 Steve Laymon

Cirsium fontinale var. campylon    Mt hamilton thistle,  Mt. hamilton thistle
rare native
Perennial herb

ASTERACEAE

Cirsium fontinale var. campylon
© 2019 David Greenberger
Cirsium fontinale var. campylon
© 2020 David Greenberger
Cirsium fontinale var. campylon
© 2020 R.A. Chasey

Cirsium fontinale var. fontinale    Fountain thistle
rare native
Perennial herb

ASTERACEAE

Cirsium fontinale var. fontinale
© 2004 Toni Corelli
Cirsium fontinale var. fontinale
© 2021 Ambrose Cruz
Cirsium fontinale var. fontinale
© 2021 Ambrose Cruz

Cirsium fontinale var. obispoense    Chorro creek bog thistle
rare native
Perennial herb

ASTERACEAE

Cirsium fontinale var. obispoense
© 2017 Cindy Roessler
Cirsium fontinale var. obispoense
© 2015 David Wolfson
Cirsium fontinale var. obispoense
© 2020 David Greenberger

rare native
Perennial herb

ASTERACEAE

Cirsium hydrophilum var. hydrophilum
© 2022 Morgan Stickrod
Cirsium hydrophilum var. hydrophilum
© 2022 Morgan Stickrod
Cirsium hydrophilum var. hydrophilum
© 2022 Morgan Stickrod

Cirsium hydrophilum var. vaseyi    Mt. Tamalpais thistle,  Vasey's thistle
rare native
Perennial herb

ASTERACEAE

Cirsium hydrophilum var. vaseyi
© 2018 Eliezer Margolis
Cirsium hydrophilum var. vaseyi
© 2021 Rowena Forest
Cirsium hydrophilum var. vaseyi
© 2019 Chasey

Cirsium occidentale var. compactum    Compact cobwebby thistle
rare native
Perennial herb

ASTERACEAE

Cirsium occidentale var. compactum
© 2019 Marisa Persaud
Cirsium occidentale var. compactum
© 2016 Talila Golan
Cirsium occidentale var. compactum
© 2012 John Sayers

Cirsium occidentale var. lucianum    Cuesta ridge thistle
rare native
Perennial herb

ASTERACEAE

Cirsium occidentale var. lucianum
© 2019 David Greenberger
Cirsium occidentale var. lucianum
© 2021 David Krause
Cirsium occidentale var. lucianum
© 2021 David Krause

Cirsium praeteriens    Palo alto thistle
rare native
Perennial herb

ASTERACEAE


Cirsium rhothophilum    Surf thistle
rare native
Perennial herb

ASTERACEAE

Cirsium rhothophilum
© 2023 Morgan Stickrod
Cirsium rhothophilum
© Alice Abela
Cirsium rhothophilum
© 2023 Morgan Stickrod

Cirsium scariosum var. loncholepis    La graciosa thistle
rare native
Perennial herb

ASTERACEAE

Cirsium scariosum var. loncholepis
© 2024 Kyle Suchy
Cirsium scariosum var. loncholepis
© 2024 Kyle Suchy
Cirsium scariosum var. loncholepis
© 2024 Kyle Suchy

Cistanthe maritima    Seaside calandrinia
rare native
Annual herb

MONTIACEAE

Cistanthe maritima
© 2019 Ron Vanderhoff
Cistanthe maritima
© 2019 Ron Vanderhoff
Cistanthe maritima
© 2019 Ron Vanderhoff

Cladium californicum    California sawgrass,  Saw grass
rare native
Perennial grasslike herb

CYPERACEAE

Cladium californicum
© 2024 richard mcneill
Cladium californicum
© 2024 richard mcneill
Cladium californicum
© 2018 Matt Berger

Cladonia firma    Popcorn lichen
rare native
Lichen

CLADONIACEAE

Cladonia firma
© Patricia Simpson
Cladonia firma
© Henry Fabian
Cladonia firma
© Jay Keller

Clarkia amoena ssp. whitneyi    Farewell to spring,  Whitney's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia amoena ssp. whitneyi
© 2022 Asa B Spade
Clarkia amoena ssp. whitneyi
© 2018 Asa B Spade
Clarkia amoena ssp. whitneyi
© 2022 Asa B Spade

Clarkia australis    Small's southern clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia australis
© 2021 R.A. Chasey
Clarkia australis
© 2021 R.A. Chasey
Clarkia australis
© 1986 Dean Wm. Taylor

Clarkia biloba ssp. australis    Mariposa clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia biloba ssp. australis
© 2020 Steve Laymon
Clarkia biloba ssp. australis
© 2020 Mike Russler
Clarkia biloba ssp. australis
© 2020 Mike Russler

Clarkia biloba ssp. brandegeeae    Brandegee's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia biloba ssp. brandegeeae
© 2020 Steve Laymon
Clarkia biloba ssp. brandegeeae
© 2020 Steve Laymon
Clarkia biloba ssp. brandegeeae
© 2019 Matt Berger

Clarkia borealis ssp. arida    Shasta clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia borealis ssp. arida
© 2015 Steve Laymon
Clarkia borealis ssp. arida
© 2016 Steve Laymon

Clarkia borealis ssp. borealis    Northern clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia borealis ssp. borealis
© 2020 Steve Laymon
Clarkia borealis ssp. borealis
© 2020 Steve Laymon
Clarkia borealis ssp. borealis
© 2024 Jordan Collins

Clarkia breweri    Brewer's clarkia,  Fairy fans
rare native
Annual herb

ONAGRACEAE

Clarkia breweri
© 2019 David Greenberger
Clarkia breweri
© 2018 Elinor Gates
Clarkia breweri
© 2019 Joey Santore

Clarkia concinna ssp. automixa    Santa clara red ribbons
rare native
Annual herb

ONAGRACEAE

Clarkia concinna ssp. automixa
© 2020 Steve Laymon
Clarkia concinna ssp. automixa
© 2018 Elinor Gates
Clarkia concinna ssp. automixa
© 2023 Helen Hancock

Clarkia concinna ssp. raichei    Raiche's clarkia,  Raiche's red ribbons
rare native
Annual herb

ONAGRACEAE

Clarkia concinna ssp. raichei
© 2018 Steve Laymon
Clarkia concinna ssp. raichei
© 2018 Steve Laymon
Clarkia concinna ssp. raichei
© 2015 James Gonsman

Clarkia delicata    Campo clarkia,  Delicate clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia delicata
© 2020 Steve Laymon
Clarkia delicata
© 2019 Matt Berger
Clarkia delicata
© 2012 Cynthia Keiser

Clarkia exilis    Kern river clarkia,  Slender clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia exilis
© 2020 Steve Laymon
Clarkia exilis
© 2022 Mike Russler
Clarkia exilis
© 2022 Mike Russler

Clarkia franciscana    Presidio clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia franciscana
© 2020 Steve Laymon
Clarkia franciscana
© 2017 Lech N
Clarkia franciscana
© 2020 Mike Russler

Clarkia gracilis ssp. albicaulis    White stemmed clarkia,  Whitestem clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia gracilis ssp. albicaulis
© 2019 Steve Laymon
Clarkia gracilis ssp. albicaulis
© 2020 Steve Laymon
Clarkia gracilis ssp. albicaulis
© 2019 Steve Laymon

Clarkia gracilis ssp. tracyi    Tracy's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia gracilis ssp. tracyi
© 2019 Steve Laymon
Clarkia gracilis ssp. tracyi
© 2018 Steve Laymon
Clarkia gracilis ssp. tracyi
© 2019 Steve Laymon

Clarkia imbricata    Vine hill clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia imbricata
© 2018 Steve Laymon
Clarkia imbricata
© 2018 Steve Laymon
Clarkia imbricata
© 2018 Steve Laymon

Clarkia jolonensis    Jolon clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia jolonensis
© 2020 Steve Laymon
Clarkia jolonensis
© 2020 Steve Laymon
Clarkia jolonensis
© 2017 Heather Schneider

Clarkia lewisii    Lewis' clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia lewisii
© 2022 Irene Rosen
Clarkia lewisii
© 2020 Steve Laymon
Clarkia lewisii
© 2022 Irene Rosen

Clarkia lingulata    Merced clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia lingulata
© 2020 Mike Russler
Clarkia lingulata
© 2016 Cynthia Powell
Clarkia lingulata
© 2020 Mike Russler

Clarkia mildrediae ssp. lutescens    Mildred's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia mildrediae ssp. lutescens
© 2020 Steve Laymon
Clarkia mildrediae ssp. lutescens
© 2020 Steve Laymon
Clarkia mildrediae ssp. lutescens
© 2020 Steve Laymon

Clarkia mildrediae ssp. mildrediae    Mildred's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia mildrediae ssp. mildrediae
© 2019 Matt Berger
Clarkia mildrediae ssp. mildrediae
© 2017 David popp
Clarkia mildrediae ssp. mildrediae
© 2021 David popp

Clarkia mosquinii    Mosquin's clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia mosquinii
© 2020 Steve Laymon
Clarkia mosquinii
© 2020 Steve Laymon
Clarkia mosquinii
© 2020 Steve Laymon

Clarkia rostrata    Beaked clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia rostrata
© 2018 Steve Laymon
Clarkia rostrata
© 2018 Steve Laymon
Clarkia rostrata
© 2018 Steve Laymon

rare native
Annual herb

ONAGRACEAE

Clarkia speciosa ssp. immaculata
© 2020 Steve Laymon
Clarkia speciosa ssp. immaculata
© 2020 Steve Laymon
Clarkia speciosa ssp. immaculata
© 2020 Steve Laymon

Clarkia springvillensis    Springville clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia springvillensis
© 2020 Steve Laymon
Clarkia springvillensis
© 2017 Douglas Gordon-Blackwood
Clarkia springvillensis
© 2015 Mary Merriman

rare native
Annual herb

ONAGRACEAE

Clarkia tembloriensis ssp. calientensis
© 2011 Neal Kramer
Clarkia tembloriensis ssp. calientensis
© 2006 Dean Wm. Taylor
Clarkia tembloriensis ssp. calientensis
© 2011 Neal Kramer

Clarkia virgata    Sierra clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia virgata
© 2020 Steve Laymon
Clarkia virgata
© 2020 Steve Laymon
Clarkia virgata
© 2019 David Greenberger

Clarkia xantiana ssp. parviflora    Kern canyon clarkia
rare native
Annual herb

ONAGRACEAE

Clarkia xantiana ssp. parviflora
© 2018 Steve Laymon
Clarkia xantiana ssp. parviflora
© 2019 Matt Berger
Clarkia xantiana ssp. parviflora
© 2019 Matt Berger

Claytonia lanceolata var. peirsonii    Lanceleaf springbeauty,  Western spring beauty,  Western springbeauty
native
Perennial herb

MONTIACEAE

Claytonia lanceolata var. peirsonii
© 2010 Steve Matson
Claytonia lanceolata var. peirsonii
© 2010 Steve Matson
Claytonia lanceolata var. peirsonii
© 2015 Jenny Gossett

Claytonia megarhiza    Alpine springbeauty,  Fell fields claytonia
rare native
Perennial herb

MONTIACEAE

Claytonia megarhiza
© 2022 John Rawlings
Claytonia megarhiza
© 2022 Richard Sullivan
Claytonia megarhiza
© 2022 Richard Sullivan

Claytonia palustris    Jonesville springbeauty,  Marsh claytonia
rare native
Perennial herb

MONTIACEAE

Claytonia palustris
© 2019 Matt Berger
Claytonia palustris
© 2019 Matt Berger
Claytonia palustris
© 2019 Matt Berger

Claytonia parviflora ssp. grandiflora    Large flowered miner's lettuce,  Streambank springbeauty
rare native
Annual herb

MONTIACEAE

Claytonia parviflora ssp. grandiflora
© 2023 Matt Berger
Claytonia parviflora ssp. grandiflora
© 2021 Jacob Smith
Claytonia parviflora ssp. grandiflora
© 2024 Matt Berger

Claytonia umbellata    Great basin claytonia,  Great basin springbeauty
rare native
Perennial herb

MONTIACEAE

Claytonia umbellata
© 2020 Dolly B. Chapman
Claytonia umbellata
© 2020 Dolly B. Chapman
Claytonia umbellata
© 2013 Larry Crawford

Cleomella brevipes    Shortstalk stinkweed
rare native
Annual herb

CLEOMACEAE

Cleomella brevipes
© 2008 Steve Matson
Cleomella brevipes
© 2008 Steve Matson
Cleomella brevipes
© 2007 Steve Matson

Cleomella hillmanii var. hillmanii    Hillman's cleomella
rare native
Annual herb

CLEOMACEAE

Cleomella hillmanii var. hillmanii
© 2012 Gerald Carr
Cleomella hillmanii var. hillmanii
© 2012 Gerald Carr
Cleomella hillmanii var. hillmanii
© 2012 Gerald Carr

Climacium dendroides    Tree climacium moss
rare native
Moss

CLIMACIACEAE


Clinopodium chandleri    San miguel savory
rare native
Perennial herb

LAMIACEAE

Clinopodium chandleri
© 2022 Ron Vanderhoff
Clinopodium chandleri
© 2021 Ron Vanderhoff
Clinopodium chandleri
© 2020 Diane Etchison

Clinopodium mimuloides    Monkey flower savory,  Monkeyflower savory
rare native
Perennial herb

LAMIACEAE

Clinopodium mimuloides
© 2020 David Wolfson
Clinopodium mimuloides
© 2018 Scott Yarger
Clinopodium mimuloides
© 2018 Scott Yarger

Cochlearia groenlandica    Greenland cochlearia
rare native
Annual herb

BRASSICACEAE

Cochlearia groenlandica
© Dr. G Dallas and Margaret Hanna2008 California Academy of Sciences

Collinsia antonina    San Antonio collinsia
rare native
Annual herb

PLANTAGINACEAE

Collinsia antonina
© 2024 Chloe and Trevor Van Loon
Collinsia antonina
© 2024 Chloe and Trevor Van Loon
Collinsia antonina
© 2024 Chloe and Trevor Van Loon

Collinsia corymbosa    Round headed chinese houses,  Roundhead chinese houses
rare native
Annual herb

PLANTAGINACEAE

Collinsia corymbosa
© 2007 Steve Matson
Collinsia corymbosa
© 2007 Steve Matson
Collinsia corymbosa
© 2007 Steve Matson

Collinsia multicolor    San Francisco blue eyed mary,  San Francisco collinsia
rare native
Annual herb

PLANTAGINACEAE

Collinsia multicolor
© 2022 Janell Hillman
Collinsia multicolor
© 2019 Ken Hickman
Collinsia multicolor
© 2018 Barry Thomson

Collomia diversifolia    Serpentine collomia
rare native
Annual herb

POLEMONIACEAE

Collomia diversifolia
© 2020 Matt Berger
Collomia diversifolia
© 2020 Matt Berger
Collomia diversifolia
© 2020 John Game

Collomia larsenii    Talus collomia
rare native
Perennial herb (rhizomatous)

POLEMONIACEAE

Collomia larsenii
© 2023 Dana York
Collomia larsenii
© 1991 Julie A. Kierstead
Collomia larsenii
© 1991 Julie A. Kierstead

Collomia rawsoniana    Flaming trumpet
rare native
Perennial herb (rhizomatous)

POLEMONIACEAE

Collomia rawsoniana
© 2022 Mike Russler
Collomia rawsoniana
© 2023 Chloe and Trevor Van Loon
Collomia rawsoniana
© 2022 Mike Russler

Collomia tenella    Slender collomia
rare native
Perennial herb

POLEMONIACEAE

Collomia tenella
© 2016 Robert Carr
Collomia tenella
© 2023 Matt Berger
Collomia tenella
© 2023 Matt Berger

Collomia tracyi    Tracy's collomia
rare native
Annual herb

POLEMONIACEAE

Collomia tracyi
© 2022 Dana York
Collomia tracyi
© 2023 Steve Conger
Collomia tracyi
© 2024 Dana York

Colubrina californica    California snake bush,  Colubrina,  Las animas colubrina
rare native
Shrub

RHAMNACEAE

Colubrina californica
© 2019 Richard Spjut
Colubrina californica
© 2019 Richard Spjut
Colubrina californica
© 2019 Richard Spjut

rare native
Shrub

ERICACEAE

Comarostaphylis diversifolia ssp. diversifolia
© 2015 Keir Morse
Comarostaphylis diversifolia ssp. diversifolia
© 2021 Ron Vanderhoff
Comarostaphylis diversifolia ssp. diversifolia
© 2021 Ron Vanderhoff

Condalia globosa var. pubescens    Bitter snakewood,  Spiny abrojo,  Spiny crucillo
rare native
Shrub

RHAMNACEAE

Condalia globosa var. pubescens
© 2019 Richard Spjut
Condalia globosa var. pubescens
© 2019 Richard Spjut
Condalia globosa var. pubescens
© 2019 Richard Spjut

Constancea nevinii    Nevin's woolly sunflower
rare native
Shrub

ASTERACEAE

Constancea nevinii
© 2019 Aaron Echols
Constancea nevinii
© 2019 B.J. Dion
Constancea nevinii
© 2019 Aaron Echols

Convolvulus simulans    Small flowered morning glory
rare native
Annual herb

CONVOLVULACEAE

Convolvulus simulans
© 2016 Ron Vanderhoff
Convolvulus simulans
© 2017 James Bailey
Convolvulus simulans
© 2023 David Gowen

Coptis laciniata    Oregon golden thread,  Oregon goldthread
rare native
Perennial herb

RANUNCULACEAE

Coptis laciniata
© 2023 Dana York
Coptis laciniata
© 2023 Dana York
Coptis laciniata
© 2023 Dana York

Corallorhiza trifida    Northern coral root,  Yellow coralroot
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Corallorhiza trifida
© 2016 Scot Loring
Corallorhiza trifida
© 2023 Chelsea Kieffer
Corallorhiza trifida
© 2023 Chelsea Kieffer

Cordylanthus capitatus    Yakima bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus capitatus
© 2012 Aaron Schusteff
Cordylanthus capitatus
© 2012 Aaron Schusteff

Cordylanthus eremicus ssp. eremicus    Desert bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus eremicus ssp. eremicus
© 2019 Matt Berger
Cordylanthus eremicus ssp. eremicus
© 2024 Mike Russler
Cordylanthus eremicus ssp. eremicus
© 2024 Mike Russler

Cordylanthus eremicus ssp. kernensis    Kern bird's beak,  Kern plateau bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus eremicus ssp. kernensis
© 2020 Matt Berger
Cordylanthus eremicus ssp. kernensis
© 2020 Matt Berger
Cordylanthus eremicus ssp. kernensis
© 2023 Chloe and Trevor Van Loon

Cordylanthus nidularius    Mt. Diablo bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus nidularius
© 2014 John Game
Cordylanthus nidularius
© 2023 Ryan O'Dell
Cordylanthus nidularius
© 2012 Terrence Gosliner

Cordylanthus parviflorus    Purple bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus parviflorus
© 2011 Keir Morse
Cordylanthus parviflorus
© 2011 Keir Morse
Cordylanthus parviflorus
© 2011 Keir Morse

Cordylanthus rigidus ssp. brevibracteatus    Short bracted bird's beak,  Stiffbranch bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus rigidus ssp. brevibracteatus
© 2018 Mary Merriman
Cordylanthus rigidus ssp. brevibracteatus
© 2020 Jacob Smith
Cordylanthus rigidus ssp. brevibracteatus
© 2018 Mary Merriman

Cordylanthus rigidus ssp. littoralis    Seaside bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus rigidus ssp. littoralis
© 2022 Irene Rosen
Cordylanthus rigidus ssp. littoralis
© 2022 R.A. Chasey
Cordylanthus rigidus ssp. littoralis
© 2022 R.A. Chasey

Cordylanthus tenuis ssp. barbatus    Fresno county bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus tenuis ssp. barbatus
© 2023 Mike Russler
Cordylanthus tenuis ssp. barbatus
© 2023 Mike Russler
Cordylanthus tenuis ssp. barbatus
© 2023 Mike Russler

Cordylanthus tenuis ssp. brunneus    Serpentine bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus tenuis ssp. brunneus
© 2003 William Maslach
Cordylanthus tenuis ssp. brunneus
© 2023 R.A. Chasey
Cordylanthus tenuis ssp. brunneus
© 2023 R.A. Chasey

Cordylanthus tenuis ssp. capillaris    Pennell's bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus tenuis ssp. capillaris
© 2009 Aaron Arthur
Cordylanthus tenuis ssp. capillaris
© 2009 Aaron Arthur
Cordylanthus tenuis ssp. capillaris
© 2015 John Doyen

Cordylanthus tenuis ssp. pallescens    Pallid bird's beak
rare native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus tenuis ssp. pallescens
© 2019 Julie Kierstead Nelson
Cordylanthus tenuis ssp. pallescens
© 2019 Julie Kierstead Nelson
Cordylanthus tenuis ssp. pallescens
© 2019 Julie Kierstead Nelson

Corethrogyne filaginifolia var. incana    San diego sand aster,  San diego sandaster
rare native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia var. incana
© 2012 snakeinmypocket
Corethrogyne filaginifolia var. incana
© 2017 Larry Sward
Corethrogyne filaginifolia var. incana
© 2017 Larry Sward

Corethrogyne filaginifolia var. linifolia    Del mar mesa sand aster,  Del mar mesa sandaster
rare native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia var. linifolia
© 2022 Alexander S. Kunz
Corethrogyne filaginifolia var. linifolia
© 2024 Mike Russler
Corethrogyne filaginifolia var. linifolia
© 2024 Mike Russler

Corethrogyne leucophylla    Branching beach aster,  Whiteleaf sandaster
rare native
Perennial herb

ASTERACEAE

Corethrogyne leucophylla
© 2022 R.A. Chasey
Corethrogyne leucophylla
© 2022 R.A. Chasey
Corethrogyne leucophylla
© 2022 R.A. Chasey

native
Annual herb

CHENOPODIACEAE

Corispermum americanum var. americanum
© 2018 Steve Matson
Corispermum americanum var. americanum
© 2018 Steve Matson
Corispermum americanum var. americanum
© 2018 Steve Matson

Cornus canadensis    Bunch berry
rare native
Perennial herb

CORNACEAE

Cornus canadensis
© 2001 William Maslach
Cornus canadensis
© 2018 Jonathan Lee
Cornus canadensis
© 2021 Scot Loring

Coryphantha alversonii    Foxtail cactus
rare native
Perennial herb (stem succulent)

CACTACEAE

Coryphantha alversonii
© 2019 Lynn Sweet
Coryphantha alversonii
© 2019 Lynn Sweet
Coryphantha alversonii
© 2019 Lynn Sweet

Coryphantha chlorantha    Desert pincushion
rare native
Perennial herb

CACTACEAE

Coryphantha chlorantha
© 2021 Sandy Leatherman
Coryphantha chlorantha
© 2021 Sandy Leatherman
Coryphantha chlorantha
© 2005 Trent M. Draper

Coscinodon arctolimnius ssp. higuchii    Higuchi's sieve-tooth moss
rare native
Moss

GRIMMIACEAE


Crataegus castlegarensis    Castlegar hawthorne
rare native
Shrub

ROSACEAE

Crataegus castlegarensis
© 2017 David popp
Crataegus castlegarensis
© 2011 Dean Wm. Taylor, Ph.D.
Crataegus castlegarensis
© 2008 John Dittes

Crepis runcinata    Fiddleleaf hawksbeard,  Meadow hawksbeard
rare native
Perennial herb

ASTERACEAE

Crepis runcinata
© 2008 Steve Matson
Crepis runcinata
© 2014 Gerald Carr
Crepis runcinata
© 2013 Steve Matson

Crocanthemum greenei    Island rush-rose
rare native
Shrub

CISTACEAE

Crocanthemum greenei
© 2024 Chloe and Trevor Van Loon
Crocanthemum greenei
© 2023 Keir Morse
Crocanthemum greenei
© 2025 Ron Vanderhoff

Crocanthemum suffrutescens    Bisbee peak rush-rose
rare native
Shrub

CISTACEAE

Crocanthemum suffrutescens
© 2022 Charles Russell
Crocanthemum suffrutescens
© 2023 Rhonda Allen
Crocanthemum suffrutescens
© 2023 Rhonda Allen

Crossosoma californicum    California rockflower,  Catalina crossosoma
rare native
Shrub

CROSSOSOMATACEAE

Crossosoma californicum
© 2019 Susan McDougall
Crossosoma californicum
© 2024 Saskia Raether
Crossosoma californicum
© 2024 Cynthia Powell

Croton wigginsii    Wiggins' croton,  Wiggins's croton
rare native
Shrub

EUPHORBIACEAE

Croton wigginsii
© 2024 Mike Russler
Croton wigginsii
© 2020 Joey Santore
Croton wigginsii
© 2019 Matt Berger

Cryptantha celosioides    Cocks comb cat's eye
rare native
Perennial herb

BORAGINACEAE

Cryptantha celosioides
© 2010 Gerald D. Carr
Cryptantha celosioides
© 2010 Gerald D. Carr
Cryptantha celosioides
© 2010 Gerald D. Carr

Cryptantha circumscissa var. rosulata    Rosette cushion cryptantha
rare native
Perennial herb

BORAGINACEAE

Cryptantha circumscissa var. rosulata
© 2019 Mary Merriman
Cryptantha circumscissa var. rosulata
© 2022 Richard Spjut
Cryptantha circumscissa var. rosulata
© 2011 James M. Andre

Cryptantha clokeyi    Clokey's cryptantha,  Prickly cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha clokeyi
© 2023 Mike Russler
Cryptantha clokeyi
© 2022 Mary Merriman
Cryptantha clokeyi
© 2023 Mike Russler

Cryptantha costata    Ashen forget me not,  Ribbed cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha costata
© 2016 Steve Matson
Cryptantha costata
© 2016 Steve Matson
Cryptantha costata
© 2020 Matt Berger

Cryptantha crinita    Sacramento cryptantha,  Silky cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha crinita
© 2020 Matt Berger
Cryptantha crinita
© 2020 Matt Berger
Cryptantha crinita
© 2020 Matt Berger

Cryptantha crymophila    Subalpine cryptantha
rare native
Perennial herb

BORAGINACEAE

Cryptantha crymophila
© 2019 Matt Berger
Cryptantha crymophila
© 2019 Matt Berger
Cryptantha crymophila
© 2019 Matt Berger

Cryptantha dissita    Serpentine cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha dissita
© 2020 Terrence Gosliner
Cryptantha dissita
© 2019 Terry Gosliner
Cryptantha dissita
© 2019 Terry Gosliner

Cryptantha excavata    Deep scarred cryptantha,  Deepscar cryptantha
rare native
Annual herb

BORAGINACEAE


Cryptantha fendleri    Sand dune cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha fendleri
© 2017 Robert L.Carr
Cryptantha fendleri
© 2017 Robert L.Carr
Cryptantha fendleri
© 2017 Robert L.Carr

Cryptantha ganderi    Gander's cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha ganderi
© 2017 Diane Etchison
Cryptantha ganderi
© 2017 Diane Etchison
Cryptantha ganderi
© 2017 Fred Melgert / Carla Hoegen

Cryptantha glomeriflora    Truckee cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha glomeriflora
© 2019 Steve Matson
Cryptantha glomeriflora
© 2019 Steve Matson
Cryptantha glomeriflora
© 2022 Steve Matson

Cryptantha hooveri    Hoover's cryptantha
rare native
Annual herb

BORAGINACEAE


Cryptantha incana    Tulare cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha incana
© 2022 Mike Russler
Cryptantha incana
© 2024 Ryan Donnelly
Cryptantha incana
© 2022 Mike Russler

Cryptantha mariposae    Mariposa cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha mariposae
© 2010 Robin Kent
Cryptantha mariposae
© 2011 Steve Matson
Cryptantha mariposae
© 2013 Jean Pawek

Cryptantha rattanii    Rattan's cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha rattanii
© 2016 Paul Preston
Cryptantha rattanii
© 2016 Paul Preston
Cryptantha rattanii
© 2016 Paul Preston

Cryptantha roosiorum    Bristlecone cryptantha
rare native
Perennial herb

BORAGINACEAE

Cryptantha roosiorum
© 2011 Steve Matson
Cryptantha roosiorum
© 2011 Steve Matson

Cryptantha rostellata    Beaked cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha rostellata
© 2018 Gerald Carr
Cryptantha rostellata
© 2018 Gerald Carr
Cryptantha rostellata
© 2023 Chris McCarron

Cryptantha schoolcraftii    Schoolcraft's cryptantha
rare native
Perennial herb

BORAGINACEAE

Cryptantha schoolcraftii
© 2012 Gerald Carr
Cryptantha schoolcraftii
© 2012 Gerald Carr
Cryptantha schoolcraftii
© 2012 Gerald Carr

Cryptantha scoparia    Gray cryptantha,  Pinyon desert cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha scoparia
© 2019 Steve Matson
Cryptantha scoparia
© 2019 Steve Matson
Cryptantha scoparia
© 2019 Steve Matson

rare native
Annual herb

BORAGINACEAE

Cryptantha spithamaea
© 2007 Keir Morse
Cryptantha spithamaea
© 2007 Keir Morse
Cryptantha spithamaea
© 2007 California Native Plant Society

Cryptantha traskiae    Trask's cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha traskiae
© 2011 Neal Kramer
Cryptantha traskiae
© 2011 Dylan Neubauer
Cryptantha traskiae
© 2011 Neal Kramer

Cryptantha tumulosa    New york mountain cryptantha,  New york mtns. cryptantha
rare native
Perennial herb

BORAGINACEAE

Cryptantha tumulosa
© 2008 Steve Matson
Cryptantha tumulosa
© 2008 Steve Matson
Cryptantha tumulosa
© 2008 Steve Matson

Cryptantha wigginsii    Wiggins' cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha wigginsii
© 2015 Patrick McConnell
Cryptantha wigginsii
© © 2015 Patrick McConnell
Cryptantha wigginsii
© 2015 Patrick McConnell

Cuniculotinus gramineus    Panamint rock goldenrod
rare native
Perennial herb

ASTERACEAE

Cuniculotinus gramineus
© 2019 Steve Matson
Cuniculotinus gramineus
© 2019 Steve Matson
Cuniculotinus gramineus
© 2014 Steve Matson

Cuscuta californica var. apiculata    Chaparral dodder,  Pointed dodder
rare native
Annual herb, Vine (parasitic)

CONVOLVULACEAE


Cuscuta jepsonii    Jepson's dodder
rare native
Annual herb, Vine

CONVOLVULACEAE

Cuscuta jepsonii
© 2019 Julie Kierstead Nelson
Cuscuta jepsonii
© 2021 Amy Rachkowski
Cuscuta jepsonii
© 2021 Amy Rachkowski

rare native
Annual herb, Vine (parasitic)

CONVOLVULACEAE


Cuscuta pacifica var. papillata    Mendocino dodder
rare native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta pacifica var. papillata
© 2003 George W. Hartwell

Cusickiella quadricostata    Bodie hills cusickiella
rare native
Perennial herb

BRASSICACEAE

Cusickiella quadricostata
© 2008 Steve Matson
Cusickiella quadricostata
© 2008 Steve Matson
Cusickiella quadricostata
© 2008 Steve Matson

Cylindropuntia californica var. californica    California pricklypear,  Snake cholla
rare native
Perennial herb (stem succulent)

CACTACEAE

Cylindropuntia californica var. californica
© 2009 Andrew Borcher
Cylindropuntia californica var. californica
© 2013 Dale Ritenour
Cylindropuntia californica var. californica
© 2010 Anna Bennett

Cylindropuntia fosbergii    Pink teddy-bear cholla
rare native
Perennial herb

CACTACEAE

Cylindropuntia fosbergii
© 2020 Ron Vanderhoff
Cylindropuntia fosbergii
© 2020 Ron Vanderhoff
Cylindropuntia fosbergii
© 2020 Ron Vanderhoff

Cylindropuntia munzii    Munz's cholla
rare native
Perennial herb (stem succulent)

CACTACEAE

Cylindropuntia munzii
© 2021 Grigory Heaton
Cylindropuntia munzii
© 2024 Chloe and Trevor Van Loon
Cylindropuntia munzii
© 2024 Chloe and Trevor Van Loon

Cylindropuntia wolfii    Wolf's opuntia
rare native
Shrub (stem succulent)

CACTACEAE

Cylindropuntia wolfii
© 2021 Emily Sluiman
Cylindropuntia wolfii
© 2023 Matt Berger
Cylindropuntia wolfii
© 2023 Matt Berger

Cymopterus deserticola    Desert cymopterus,  Desert springparsley
rare native
Perennial herb

APIACEAE

Cymopterus deserticola
© 2020 Matt Berger
Cymopterus deserticola
© 2020 Matt Berger
Cymopterus deserticola
© 2013 Steve Matson

Cymopterus gilmanii    Gilman's cymopterus,  Gilman's springparsley
rare native
Perennial herb

APIACEAE

Cymopterus gilmanii
© 2005 Steve Matson
Cymopterus gilmanii
© 2017 Steve Matson
Cymopterus gilmanii
© 2017 Steve Matson

Cymopterus globosus    Globe springparsley,  Globose cymopterus
rare native
Perennial herb

APIACEAE

Cymopterus globosus
© 2020 Matt Berger
Cymopterus globosus
© 2020 Matt Berger
Cymopterus globosus
© Mary Winter

Cymopterus multinervatus    Arizona cymopterus,  Purplenerve springparsley
rare native
Perennial herb

APIACEAE

Cymopterus multinervatus
© 2022 Jon Rebman
Cymopterus multinervatus
© 2022 Jon Rebman
Cymopterus multinervatus
© 2022 Jon Rebman

Cymopterus ripleyi var. saniculoides    Sanicle cymopterus
rare native
Perennial herb

APIACEAE

Cymopterus ripleyi var. saniculoides
© 2019 Matt Berger
Cymopterus ripleyi var. saniculoides
© 2019 Matt Berger
Cymopterus ripleyi var. saniculoides
© 2019 Matt Berger

Cypripedium californicum    California lady's slipper
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Cypripedium californicum
© 2023 Mary Ann Machi
Cypripedium californicum
© 2017 Steve Matson
Cypripedium californicum
© 2018 Margarita Orlova

Cypripedium fasciculatum    Clustered lady's slipper
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Cypripedium fasciculatum
© 2018 Timothy Boomer
Cypripedium fasciculatum
© 2018 Timothy Boomer
Cypripedium fasciculatum
© 2020 Shane Hanofee

Cypripedium montanum    Mountain lady's slipper
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Cypripedium montanum
© 2018 Timothy Boomer
Cypripedium montanum
© 2018 Timothy Boomer
Cypripedium montanum
© 2019 Julie Kierstead Nelson

Cypripedium parviflorum var. makasin    Greater yellow lady's slipper
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Cypripedium parviflorum var. makasin
© 2012 Gary A. Monroe
Cypripedium parviflorum var. makasin
© 2012 Gary A. Monroe

Dacryophyllum falcifolium    Tear drop moss
rare native
Moss

HYPNACEAE


Dalea ornata    Blue mountain prairie clover,  Ornate dalea
rare native
Perennial herb

FABACEAE

Dalea ornata
© 1990 Gary A. Monroe
Dalea ornata
© 1985 Gary A. Monroe

Darlingtonia californica    California pitcherplant
rare native
Perennial herb (carnivorous)

SARRACENIACEAE

Darlingtonia californica
© 2023 Mary Ann Machi
Darlingtonia californica
© 2023 Mary Ann Machi
Darlingtonia californica
© 2005 Steve Matson

Dedeckera eurekensis    July gold
rare native
Shrub

POLYGONACEAE

Dedeckera eurekensis
© 2022 Charles Russell
Dedeckera eurekensis
© 2024 glittergravel
Dedeckera eurekensis
© 2007 Steve Matson

Deinandra arida    Red rock tarplant
rare native
Annual herb

ASTERACEAE

Deinandra arida
© 2011 Keir Morse
Deinandra arida
© 2024 Mike Russler
Deinandra arida
© 2023 Mike Russler

Deinandra bacigalupii    Livermore moonshine,  Livermore tarplant
rare native
Annual herb

ASTERACEAE

Deinandra bacigalupii
© 2019 David Greenberger
Deinandra bacigalupii
© 2019 Steve Matson
Deinandra bacigalupii
© 2019 Steve Matson

Deinandra clementina    Island tarplant
rare native
Shrub

ASTERACEAE

Deinandra clementina
© 2018 Ron Vanderhoff
Deinandra clementina
© 2024 Julia King
Deinandra clementina
© 2024 Julia King

Deinandra conjugens    Otay tarplant
rare native
Annual herb

ASTERACEAE

Deinandra conjugens
© 2001 Coralie Cobb
Deinandra conjugens
© 2010 Anna Bennett

Deinandra floribunda    Tecate tarplant
rare native
Annual herb

ASTERACEAE

Deinandra floribunda
© 2023 Jim Merzbacher
Deinandra floribunda
© 2023 Jim Merzbacher
Deinandra floribunda
© 2024 Mike Russler

Deinandra halliana    Hall's tarplant
rare native
Annual herb

ASTERACEAE

Deinandra halliana
© 2023 R.A. Chasey
Deinandra halliana
© 2023 R.A. Chasey
Deinandra halliana
© 2023 R.A. Chasey

Deinandra increscens ssp. villosa    Gaviota tarplant
rare native
Annual herb

ASTERACEAE

Deinandra increscens ssp. villosa
© 2019 Zack Abbey
Deinandra increscens ssp. villosa
© 2021 Morgan Stickrod
Deinandra increscens ssp. villosa
© 2021 Morgan Stickrod

Deinandra minthornii    Santa susana tarplant
rare native
Shrub

ASTERACEAE

Deinandra minthornii
© 2022 Suzanne L. Weakley
Deinandra minthornii
© 2023 David Strauch
Deinandra minthornii
© Geoff Burleigh

Deinandra mohavensis    Mojave tarplant
rare native
Annual herb

ASTERACEAE

Deinandra mohavensis
© 2022 Mike Russler
Deinandra mohavensis
© 2021 Ron Vanderhoff
Deinandra mohavensis
© 2021 Ron Vanderhoff

Deinandra paniculata    Paniculate tarplant,  San Diego tarweed
rare native
Annual herb

ASTERACEAE

Deinandra paniculata
© 2017 Ron Vanderhoff
Deinandra paniculata
© 2019 Ron Vanderhoff
Deinandra paniculata
© 2024 Mike Russler

Delphinium bakeri    Baker's delphinium,  Baker's larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium bakeri
© 2019 Hunter Breck
Delphinium bakeri
© 2021 R.A. Chasey
Delphinium bakeri
© 2022 Hunter Breck

Delphinium californicum ssp. interius    California larkspur,  Coastal larkspur,  Hospital canyon larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium californicum ssp. interius
© 2017 David Ogden
Delphinium californicum ssp. interius
© 2017 David Greenberger
Delphinium californicum ssp. interius
© 2017 David Ogden

Delphinium gypsophilum ssp. parviflorum    Pinoche creek larkspur,  Small flowered gypsum loving larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium gypsophilum ssp. parviflorum
© Beatrice F. Howitt1999 California Academy of Sciences
Delphinium gypsophilum ssp. parviflorum
© 2005 Christopher L. Christie (Delphinium gypsophilum)

Delphinium hansenii ssp. ewanianum    Ewan's larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium hansenii ssp. ewanianum
© 2022 Steve Matson
Delphinium hansenii ssp. ewanianum
© 2022 Steve Matson
Delphinium hansenii ssp. ewanianum
© 2022 Steve Matson

Delphinium hesperium ssp. cuyamacae    Cuyamaca larkspur,  Foothill larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium hesperium ssp. cuyamacae
© 2020 Fred Melgert / Carla Hoegen
Delphinium hesperium ssp. cuyamacae
© 2020 Fred Melgert / Carla Hoegen
Delphinium hesperium ssp. cuyamacae
© 2020 Fred Melgert / Carla Hoegen

Delphinium hutchinsoniae    Hutchinson's larkspur,  Monterey larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium hutchinsoniae
© 2022 Mary Conway
Delphinium hutchinsoniae
© 2022 Mary Conway
Delphinium hutchinsoniae
© 2005 Aaron Schusteff

Delphinium inopinum    Unexpected larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium inopinum
© Geoff Burleigh
Delphinium inopinum
© 2013 Alison Sheehey
Delphinium inopinum
© Geoff Burleigh

Delphinium luteum    Yellow larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium luteum
© 2016 Hunter Breck
Delphinium luteum
© 2022 Hunter Breck
Delphinium luteum
© 2013 Debra L. Cook

Delphinium parishii ssp. subglobosum    Intermediate larkspur,  Oceanblue larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium parishii ssp. subglobosum
© 2010 Belinda Lo
Delphinium parishii ssp. subglobosum
© 2010 Belinda Lo
Delphinium parishii ssp. subglobosum
© 2015 John Doyen

Delphinium parryi ssp. blochmaniae    Blochman's larkspur,  Dune larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. blochmaniae
© Geoff Burleigh
Delphinium parryi ssp. blochmaniae
© Geoff Burleigh
Delphinium parryi ssp. blochmaniae
© Geoff Burleigh

Delphinium parryi ssp. eastwoodiae    Eastwood's larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. eastwoodiae
© 2023 Mike Russler
Delphinium parryi ssp. eastwoodiae
© 2023 Mike Russler
Delphinium parryi ssp. eastwoodiae
© 2023 Mike Russler

Delphinium parryi ssp. purpureum    Mt. pinos larkspur,  San bernardino larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. purpureum
© 2018 Douglas Gordon-Blackwood
Delphinium parryi ssp. purpureum
© 2018 Douglas Gordon-Blackwood
Delphinium parryi ssp. purpureum
© 2008 Dr. Lloyd G. Simpson

Delphinium purpusii    Kern county larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium purpusii
© 2019 Matt Berger
Delphinium purpusii
© 2023 Bob Steele
Delphinium purpusii
© 2021 Mike Russler

Delphinium recurvatum    Byron larkspur,  Recurved larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium recurvatum
© 2023 Christopher Collier
Delphinium recurvatum
© 2019 Diane Etchison
Delphinium recurvatum
© 2023 Christopher Collier

Delphinium scaposum    Tall mountain larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium scaposum
© 2010 Lee Dittmann
Delphinium scaposum
© 2010 Lee Dittmann
Delphinium scaposum
© 2012 James M. Andre

Delphinium stachydeum    Spiked larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium stachydeum
© 2009 F. Gauna
Delphinium stachydeum
© 2009 F. Gauna

Delphinium uliginosum    Swamp larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium uliginosum
© 2021 Charles Russell
Delphinium uliginosum
© 2021 Charles Russell
Delphinium uliginosum
© 2021 Charles Russell

Delphinium umbraculorum    Umbrella larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium umbraculorum
© Bill Bouton
Delphinium umbraculorum
© 2012 Zack Abbey
Delphinium umbraculorum
© 2016 Amelia Ryan

Delphinium variegatum ssp. kinkiense    Royal larkspur,  San clemente island larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium variegatum ssp. kinkiense
© 2011 Dylan Neubauer
Delphinium variegatum ssp. kinkiense
© 2011 Dylan Neubauer
Delphinium variegatum ssp. kinkiense
© 2011 Dylan Neubauer

Delphinium variegatum ssp. thornei    Thorne's royal larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium variegatum ssp. thornei
© 2008 Kim M. Klementowski

Dendromecon harfordii var. harfordii    Channel island tree poppy
rare native
Shrub

PAPAVERACEAE

Dendromecon harfordii var. harfordii
© 2018 Susan McDougall
Dendromecon harfordii var. harfordii
© 2018 Susan McDougall

Dendromecon harfordii var. rhamnoides    Island tree poppy,  Tree poppy
rare native
Shrub

PAPAVERACEAE

Dendromecon harfordii var. rhamnoides
© 1993 Dean Wm. Taylor

Dicentra formosa ssp. oregana    Oregon bleeding heart
rare native
Perennial herb

PAPAVERACEAE

Dicentra formosa ssp. oregana
© 2020 Susan McDougall
Dicentra formosa ssp. oregana
© 2022 Ryan O'Dell
Dicentra formosa ssp. oregana
© 2022 Ryan O'Dell

Dicentra nevadensis    Sierra bleeding heart,  Tulare county bleeding heart
rare native
Perennial herb (rhizomatous)

PAPAVERACEAE

Dicentra nevadensis
© 2018 Steve Matson
Dicentra nevadensis
© 2018 Steve Matson
Dicentra nevadensis
© 2018 Steve Matson

Dichondra occidentalis    Western dichondra,  Western ponysfoot
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Dichondra occidentalis
© 2023 James Bailey
Dichondra occidentalis
© 2023 James Bailey
Dichondra occidentalis
© 2023 Ron Vanderhoff

Dicranostegia orcuttiana    Orcutt's bird's-beak
rare native
Annual herb

OROBANCHACEAE

Dicranostegia orcuttiana
© 2020 Debra Valov
Dicranostegia orcuttiana
© 2020 Debra Valov
Dicranostegia orcuttiana
© 2020 Debra Valov

Didymodon californicus    California beard-moss
rare native
Moss

POTTIACEAE


Dieteria asteroides var. lagunensis    Mount laguna aster
rare native
Perennial herb

ASTERACEAE

Dieteria asteroides var. lagunensis
© 2016 Keir Morse
Dieteria asteroides var. lagunensis
© 2016 Keir Morse
Dieteria asteroides var. lagunensis
© 2016 Keir Morse

Dieteria canescens var. ziegleri    Ziegler's aster
rare native
Perennial herb

ASTERACEAE

Dieteria canescens var. ziegleri
© 2006 J. Zylstra, SBNF
Dieteria canescens var. ziegleri
© 2006 J. Zylstra, SBNF

rare native
Perennial grass

POACEAE

Digitaria californica var. californica
© 2011 Keir Morse
Digitaria californica var. californica
© 2011 Keir Morse
Digitaria californica var. californica
© 2011 Keir Morse

Dimeresia howellii    Doublet
rare native
Annual herb

ASTERACEAE

Dimeresia howellii
© 2006 Steve Matson
Dimeresia howellii
© 2006 Steve Matson
Dimeresia howellii
© 2006 Steve Matson

Diplacus aridus    Low bush monkeyflower
rare native
Shrub

PHRYMACEAE

Diplacus aridus
© 2012 Duncan S. Bell
Diplacus aridus
© 2012 Duncan S. Bell
Diplacus aridus
© 2012 Duncan S. Bell

Diplacus brandegeei    Santa Cruz Island monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus brandegeei
© 2010 Jon Rebman
Diplacus brandegeei
© 2010 Jon Rebman
Diplacus brandegeei
© 2010 Jon Rebman

Diplacus clevelandii    Cleveland's bush monkeyflower
rare native
Perennial herb

PHRYMACEAE

Diplacus clevelandii
© 2020 Diane Etchison
Diplacus clevelandii
© 2019 Ron Vanderhoff
Diplacus clevelandii
© 2022 Aaron Echols

Diplacus cusickioides    Cusick's monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus cusickioides
© 2010 Gerald Carr
Diplacus cusickioides
© 2010 Gerald Carr
Diplacus cusickioides
© 2010 Gerald Carr

Diplacus johnstonii    Johnston's monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus johnstonii
© 2019 Matt Berger
Diplacus johnstonii
© 2019 Matt Berger
Diplacus johnstonii
© 2017 Keir Morse

Diplacus mohavensis    Mojave monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus mohavensis
© 2023 John Doyen
Diplacus mohavensis
© 2019 John L. Thompson
Diplacus mohavensis
© 2020 Joey Santore

Diplacus parryi    Parry's monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus parryi
© 2023 Steve Matson
Diplacus parryi
© 2022 Steve Matson
Diplacus parryi
© 2022 Steve Matson

rare native
Annual herb

PHRYMACEAE

Diplacus parviflorus
© 2014 Steve Matson
Diplacus parviflorus
© 2014 Steve Matson
Diplacus parviflorus
© 2014 Steve Matson

Diplacus pictus    calico monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus pictus
© 2023 Timothy Boomer
Diplacus pictus
© 2023 Timothy Boomer
Diplacus pictus
© 2020 Matt Berger

Diplacus pulchellus    yellow-lip pansy monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus pulchellus
© 2023 Karen Swift
Diplacus pulchellus
© 2021 Mike Russler
Diplacus pulchellus
© 2016 Judy and Barry Breckling

Diplacus pygmaeus    Egg Lake monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus pygmaeus
© James T. Vale and CNPS
Diplacus pygmaeus
© 2001 Steve Schoenig
Diplacus pygmaeus
© 2006 Dean Wm. Taylor

Diplacus rupicola    Death Valley monkeyflower
rare native
Perennial herb

PHRYMACEAE

Diplacus rupicola
© 2020 David Greenberger
Diplacus rupicola
© 2024 Bob Steele
Diplacus rupicola
© 2024 Madeleine Claire

Diplacus traskiae    Santa Catalina Island monkeyflower
rare native
Annual herb

PHRYMACEAE


Diplacus vandenbergensis    Vandenberg monkeyflower
rare native
Annual herb

PHRYMACEAE

Diplacus vandenbergensis
© 2024 Elena Oey
Diplacus vandenbergensis
© 2019 Chris Leslie
Diplacus vandenbergensis
© 2019 Chris Leslie

Dirca occidentalis    Western leatherwood
rare native
Shrub

THYMELAEACEAE

Dirca occidentalis
© 2017 John Game
Dirca occidentalis
© 2024 William Blaker
Dirca occidentalis
© 2018 David Greenberger

Discelium nudum    Discelium moss
rare native
Moss

DISCELIACEAE


Dissanthelium californicum    California dissanthelium,  Catalina grass
rare native
Annual grass

POACEAE

Dissanthelium californicum
© 2018 Emma Havstad
Dissanthelium californicum
© 2017 Brian Bielfelt
Dissanthelium californicum
© 2017 Brian Bielfelt

Ditaxis claryana    Glandular ditaxis
rare native
Perennial herb

EUPHORBIACEAE

Ditaxis claryana
© 2012 Keir Morse
Ditaxis claryana
© 2012 Keir Morse
Ditaxis claryana
© 2012 Keir Morse

Ditaxis serrata var. californica    California ditaxis
rare native
Perennial herb

EUPHORBIACEAE

Ditaxis serrata var. californica
© 2012 Keir Morse
Ditaxis serrata var. californica
© 2012 Keir Morse
Ditaxis serrata var. californica
© 2012 Keir Morse

Dithyrea maritima    Beach shieldpod,  Beach spectaclepod
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Dithyrea maritima
© 2024 Kyle Suchy
Dithyrea maritima
© 2024 Kyle Suchy
Dithyrea maritima
© 2019 Spencer Riffle

Dodecahema leptoceras    Slender horned spineflower,  Slenderhorn spineflower
rare native
Annual herb

POLYGONACEAE

Dodecahema leptoceras
© 2021 Ron Vanderhoff
Dodecahema leptoceras
© 2021 Ron Vanderhoff
Dodecahema leptoceras
© 2023 Keir Morse

Downingia concolor var. brevior    Cuyamaca lake downingia,  Maroonspot calicoflower
rare native
Annual herb

CAMPANULACEAE

Downingia concolor var. brevior
© 1996 Christopher Christie
Downingia concolor var. brevior
© Becky Escalante
Downingia concolor var. brevior
© 1996 Christopher Christie

Downingia laeta    Great basin calicoflower,  Great basin downingia
rare native
Annual herb

CAMPANULACEAE

Downingia laeta
© 2010 James M. Andre
Downingia laeta
© 2012 Jean Pawek
Downingia laeta
© 2018 John Doyen

Downingia pusilla    Dwarf calicoflower,  Dwarf downingia
rare native
Annual herb

CAMPANULACEAE

Downingia pusilla
© 2025 Bill Kress
Downingia pusilla
© 2019 Scott Yarger
Downingia pusilla
© 2025 Bill Kress

Downingia willamettensis    Cascade downingia
rare native
Annual herb

CAMPANULACEAE


Draba asterophora var. asterophora    Lake tahoe draba
rare native
Perennial herb

BRASSICACEAE

Draba asterophora var. asterophora
© 2003 Steve Matson
Draba asterophora var. asterophora
© 2003 Steve Matson
Draba asterophora var. asterophora
© 2003 Steve Matson

Draba asterophora var. macrocarpa    Cup lake draba,  Lake tahoe draba
rare native
Perennial herb

BRASSICACEAE

Draba asterophora var. macrocarpa
© 2020 Bob Sweatt
Draba asterophora var. macrocarpa
© 2020 Bob Sweatt
Draba asterophora var. macrocarpa
© 2020 Bob Sweatt

Draba aureola    Golden draba,  Mt. lassen draba
rare native
Perennial herb

BRASSICACEAE

Draba aureola
© 2011 Steve Matson
Draba aureola
© 2011 Steve Matson
Draba aureola
© 2019 Steve Matson

Draba californica    California draba
rare native
Perennial herb

BRASSICACEAE

Draba californica
© 2012 Steve Matson
Draba californica
© 2016 Steve Matson
Draba californica
© 2012 Steve Matson

Draba cana    Canescent draba
rare native
Perennial herb

BRASSICACEAE

Draba cana
© 2004 Steve Matson
Draba cana
© 2004 Steve Matson

Draba carnosula    Mt. Eddy draba
rare native
Perennial herb

BRASSICACEAE

Draba carnosula
© 2011 Steve Matson
Draba carnosula
© 2011 Steve Matson
Draba carnosula
© 2011 Steve Matson

Draba cruciata    Mineral king draba
rare native
Perennial herb

BRASSICACEAE

Draba cruciata
© 2020 Mary Merriman
Draba cruciata
© 2020 Mary Merriman
Draba cruciata
© 2018 Dana York

Draba howellii    Howell's draba,  Rosette draba
rare native
Perennial herb

BRASSICACEAE

Draba howellii
© 2018 Matt Berger
Draba howellii
© 2022 Dana York
Draba howellii
© 2022 Dana York

Draba incrassata    Sweetwater draba,  Sweetwater mtns. draba
rare native
Perennial herb

BRASSICACEAE

Draba incrassata
© 2006 Steve Matson
Draba incrassata
© 2006 Steve Matson
Draba incrassata
© 2012 Steve Matson

Draba lonchocarpa    Lancepod draba
rare native
Perennial herb

BRASSICACEAE

Draba lonchocarpa
© 2016 Steve Matson
Draba lonchocarpa
© 2016 Steve Matson
Draba lonchocarpa
© 2016 Steve Matson

Draba monoensis    Mono draba,  White mtns. draba
rare native
Perennial herb

BRASSICACEAE

Draba monoensis
© 2004 Steve Matson

Draba praealta    Tall draba
rare native
Perennial herb

BRASSICACEAE

Draba praealta
© 2009 Steve Matson
Draba praealta
© 2009 Steve Matson
Draba praealta
© 2009 Steve Matson

Draba pterosperma    Winged seed draba,  Wingedseed draba
rare native
Perennial herb

BRASSICACEAE

Draba pterosperma
© 2022 Dana York
Draba pterosperma
© 2022 Dana York
Draba pterosperma
© 2021 Dana York

Draba saxosa    Southern california rock draba
rare native
Perennial herb

BRASSICACEAE

Draba saxosa
© 2012 bill bulger
Draba saxosa
© 2009 Thomas Stoughton
Draba saxosa
© 2008 Jordan Zylstra

Draba sharsmithii    Mt. whitney draba,  Sharsmith's draba
rare native
Perennial herb

BRASSICACEAE

Draba sharsmithii
© 2023 Chloe and Trevor Van Loon
Draba sharsmithii
© 2023 Chloe and Trevor Van Loon
Draba sharsmithii
© 2023 Chloe and Trevor Van Loon

Draba sierrae    Sierra draba
rare native
Perennial herb

BRASSICACEAE

Draba sierrae
© 2023 Chloe and Trevor Van Loon
Draba sierrae
© 2023 Chloe and Trevor Van Loon
Draba sierrae
© 2023 Chloe and Trevor Van Loon

Draba subumbellata    Mound draba,  Parasol draba
rare native
Perennial herb

BRASSICACEAE

Draba subumbellata
© 2023 Chloe and Trevor Van Loon
Draba subumbellata
© 2023 Chloe and Trevor Van Loon
Draba subumbellata
© 2023 Chloe and Trevor Van Loon

Drosera anglica    English sundew,  Long leaved sundew
rare native
Perennial herb (carnivorous)

DROSERACEAE

Drosera anglica
© 2011 Dana York
Drosera anglica
© 2011 Dana York
Drosera anglica
© 2006 Steve Matson

Drymocallis cuneifolia var. cuneifolia    Wedgeleaf woodbeauty
rare native
Perennial herb

ROSACEAE


Drymocallis cuneifolia var. ewanii    Ewan's cinquefoil
rare native
Perennial herb

ROSACEAE

Drymocallis cuneifolia var. ewanii
© 2011 Michael Charters
Drymocallis cuneifolia var. ewanii
© 2005 Michael Charters
Drymocallis cuneifolia var. ewanii
© 2019 RT Hawke

Dryopteris filix-mas    Male fern
rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

Dryopteris filix-mas
© 2010 Louis-M. Landry
Dryopteris filix-mas
© 2006 Louis-M. Landry
Dryopteris filix-mas
© 2010 Louis-M. Landry

Dudleya abramsii ssp. affinis    San bernardino mountains liveforever,  San bernardino mtns. dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. affinis
© 2021 R.A. Chasey
Dudleya abramsii ssp. affinis
© 2019 Matt Berger
Dudleya abramsii ssp. affinis
© 2018 Ron Vanderhoff

Dudleya abramsii ssp. bettinae    San Luis Obispo serpentine dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. bettinae
© 2012 Terrence Gosliner
Dudleya abramsii ssp. bettinae
© 2023 Kyle Suchy
Dudleya abramsii ssp. bettinae
© 2024 Kyle Suchy

Dudleya abramsii ssp. calcicola    Limestone dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. calcicola
© 2023 Mike Russler
Dudleya abramsii ssp. calcicola
© 2023 Bob Steele
Dudleya abramsii ssp. calcicola
© 2022 Scott Yarger

Dudleya abramsii ssp. murina    San Luis Obispo dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. murina
© 2023 Mike Russler
Dudleya abramsii ssp. murina
© 2023 Mike Russler
Dudleya abramsii ssp. murina
© 2023 Mike Russler

Dudleya abramsii ssp. setchellii    Santa clara valley dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. setchellii
© 2019 Paul Hankamp
Dudleya abramsii ssp. setchellii
© 2008 Verna Jigour
Dudleya abramsii ssp. setchellii
© 2008 Verna Jigour

Dudleya alainae    Banner dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya alainae
© 2009 Vince Scheidt
Dudleya alainae
© 2006 Chris Wagner, SBNF
Dudleya alainae
© 2009 Keir Morse

Dudleya attenuata ssp. attenuata    Orcutt's dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya attenuata ssp. attenuata
© 2006 Vince Scheidt
Dudleya attenuata ssp. attenuata
© 2006 Steve Matson
Dudleya attenuata ssp. attenuata
© © 2004 TRNERR P. Roullard

Dudleya blochmaniae ssp. blochmaniae    Blochman's dudleya,  Blochman's liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya blochmaniae ssp. blochmaniae
© 2023 Mike Russler
Dudleya blochmaniae ssp. blochmaniae
© 2018 Kristen Nelson
Dudleya blochmaniae ssp. blochmaniae
© 2023 Mike Russler

Dudleya blochmaniae ssp. insularis    Blochman's liveforever,  Santa rosa island dudleya,  Santa rosa island live forever
rare native
Perennial herb

CRASSULACEAE

Dudleya blochmaniae ssp. insularis
© 2000 John Game
Dudleya blochmaniae ssp. insularis
© 2000 John Game

Dudleya brevifolia    Short leaved dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya brevifolia
© 2023 Mike Russler
Dudleya brevifolia
© 2018 Kristen Nelson
Dudleya brevifolia
© 2023 Mike Russler

Dudleya candelabrum    Candleholder dudleya,  Candleholder live forever,  Candleholder liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya candelabrum
© 2018 John Rusk
Dudleya candelabrum
© 2020 David Greenberger
Dudleya candelabrum
© 2022 Kyle Suchy

Dudleya cymosa ssp. agourensis    Canyon liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya cymosa ssp. agourensis
© 2020 Michelle Tollett
Dudleya cymosa ssp. agourensis
© 2021 Jonathan Froines
Dudleya cymosa ssp. agourensis
© 2021 Jonathan Froines

Dudleya cymosa ssp. costatifolia    Pierpoint springs dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya cymosa ssp. costatifolia
© 1995 Dana York
Dudleya cymosa ssp. costatifolia
© 1995 Dana York
Dudleya cymosa ssp. costatifolia
© 2016 John Doyen

Dudleya cymosa ssp. crebrifolia    San gabriel river dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya cymosa ssp. crebrifolia
© 2015 Gabi McLean
Dudleya cymosa ssp. crebrifolia
© 2015 Gabi McLean
Dudleya cymosa ssp. crebrifolia
© 2015 Gabi McLean

Dudleya cymosa ssp. marcescens    Marcescent dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya cymosa ssp. marcescens
© jman959
Dudleya cymosa ssp. marcescens
© 1985 Geoff Burleigh
Dudleya cymosa ssp. marcescens
© 2022 Devlin Gandy

Dudleya cymosa ssp. ovatifolia    Santa monica mountains dudleya,  Santa monica mtns. dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya cymosa ssp. ovatifolia
© 2016 Ron Vanderhoff

Dudleya densiflora    San gabriel mountains liveforever,  San gabriel mtns. dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya densiflora
© 2022 Leo Balestri
Dudleya densiflora
© 2022 Leo Balestri
Dudleya densiflora
© 2022 Leo Balestri

Dudleya gnoma    Munchkin liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya gnoma
© 2000 John Game
Dudleya gnoma
© 2005 Dieter Wilken

Dudleya greenei    Greene's dudleya,  Greene's live forever,  Greene's liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya greenei
© 2023 Dario Berrini
Dudleya greenei
© 2012 Zack Abbey
Dudleya greenei
© 2021 Grigory Heaton

Dudleya multicaulis    Many stemmed dudleya,  Manystem liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya multicaulis
© 2009 Ron Vanderhoff
Dudleya multicaulis
© 2019 Ron Vanderhoff
Dudleya multicaulis
© 2024 Ron Vanderhoff

Dudleya nesiotica    Santa cruz island dudleya,  Santa cruz island live forever,  Santa cruz island liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya nesiotica
© 2014 Steve Matson
Dudleya nesiotica
© 2014 Steve Matson
Dudleya nesiotica
© 2014 Steve Matson

Dudleya parva    Conejo dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya parva
© 2021 Grigory Heaton
Dudleya parva
© 2025 Jacob A
Dudleya parva
© 2025 Jacob A

Dudleya saxosa ssp. saxosa    Panamint dudleya,  Panamint liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya saxosa ssp. saxosa
© 2020 Matt Berger
Dudleya saxosa ssp. saxosa
© 2020 Matt Berger
Dudleya saxosa ssp. saxosa
© 2020 Matt Berger

Dudleya stolonifera    Laguna Beach dudleya,  Laguna Beach liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya stolonifera
© 2019 Ron Vanderhoff
Dudleya stolonifera
© 2019 Ron Vanderhoff
Dudleya stolonifera
© 2019 Ron Vanderhoff

Dudleya traskiae    Santa barbara island dudleya,  Santa barbara island live forever,  Santa barbara island liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya traskiae
© 2014 Robert Sikora
Dudleya traskiae
© 1985 California Native Plant Society
Dudleya traskiae
© 2014 Robert Sikora

Dudleya variegata    Variegated dudleya,  Variegated liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya variegata
© 2019 Bonnie Nickel
Dudleya variegata
© 2019 Bonnie Nickel
Dudleya variegata
© 2020 Beth Mather

Dudleya verityi    Verity's dudleya,  Verity's liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya verityi
© 2015 Zack Abbey
Dudleya verityi
© 2023 Zack Abbey
Dudleya verityi
© 2015 Steven M Norris

Dudleya virens ssp. hassei    Bright green dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya virens ssp. hassei
© 2009 Zoya Akulova
Dudleya virens ssp. hassei
© 2010 Gary A. Monroe
Dudleya virens ssp. hassei
© 2006 Steve Matson

Dudleya virens ssp. insularis    Bright green dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya virens ssp. insularis
© 2018 Ron Vanderhoff
Dudleya virens ssp. insularis
© 2017 Neil Uelman
Dudleya virens ssp. insularis
© 2024 Cynthia Powell

Dudleya virens ssp. virens    Bright green dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya virens ssp. virens
© 2022 Grigory Heaton
Dudleya virens ssp. virens
© 2011 Neal Kramer
Dudleya virens ssp. virens
© 2011 Neal Kramer

Dudleya viscida    Sticky dudleya,  Sticky liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya viscida
© 2021 Ron Vanderhoff
Dudleya viscida
© 2021 Ron Vanderhoff
Dudleya viscida
© 2021 Ron Vanderhoff

Echinocereus engelmannii var. howei    Howe's hedgehog cactus
rare native
Shrub (stem succulent)

CACTACEAE

Echinocereus engelmannii var. howei
© 1989 Wolfgang Blum

Eleocharis parvula    Dwarf spikerush,  Small spikerush
rare native
Perennial grasslike herb

CYPERACEAE

Eleocharis parvula
© 2020 Ron Vanderhoff
Eleocharis parvula
© 2020 Ron Vanderhoff
Eleocharis parvula
© 2020 Ron Vanderhoff

Eleocharis torticulmis    California twisted spikerush
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Eleocharis torticulmis
© 2019 David Greenberger
Eleocharis torticulmis
© 2011 Dean Wm. Taylor, Ph.D.

Elymus californicus    California bottle brush grass,  California bottle grass,  California bottlebrush grass
rare native
Perennial grass

POACEAE

Elymus californicus
© 2017 Ken Hickman
Elymus californicus
© 2019 Claire Mallen
Elymus californicus
© 2023 R.A. Chasey

Elymus salina    Salina pass wild rye
rare native
Perennial grass

POACEAE


Elymus scribneri    Scribner's wheat grass,  Spreading wheatgrass
rare native
Perennial grass

POACEAE

Elymus scribneri
© 2021 Steve Matson
Elymus scribneri
© 2021 Steve Matson
Elymus scribneri
© 2021 Steve Matson

Empetrum nigrum    Black crowberry
rare native
Shrub

ERICACEAE

Empetrum nigrum
© 2013 Dana York
Empetrum nigrum
© 2013 Dana York
Empetrum nigrum
© 2013 Dana York

Enceliopsis covillei    Panamint daisy
rare native
Perennial herb

ASTERACEAE

Enceliopsis covillei
© 2019 Matt Berger
Enceliopsis covillei
© 2011 Steve Matson
Enceliopsis covillei
© 2019 Matt Berger

rare native
Perennial herb, Shrub

ASTERACEAE

Enceliopsis nudicaulis var. corrugata
© 2024 Kyle Suchy
Enceliopsis nudicaulis var. corrugata
© 2024 Kyle Suchy
Enceliopsis nudicaulis var. corrugata
© 2004 Dana York

rare native
Perennial herb, Shrub

ASTERACEAE

Enceliopsis nudicaulis var. nudicaulis
© 2016 Steve Matson
Enceliopsis nudicaulis var. nudicaulis
© 2008 Steve Matson
Enceliopsis nudicaulis var. nudicaulis
© 2008 Steve Matson

Enneapogon desvauxii    Nine awned pappus grass,  Nineawn pappusgrass
rare native
Perennial grass

POACEAE

Enneapogon desvauxii
© 2011 Keir Morse
Enneapogon desvauxii
© 2011 Keir Morse
Enneapogon desvauxii
© 2011 Keir Morse

Entosthodon kochii    Koch's entosthodon moss
rare native
Moss

FUNARIACEAE


Ephedra torreyana    Torrey's jointfir
rare native
Shrub

EPHEDRACEAE

Ephedra torreyana
© 2019 Belinda Lo
Ephedra torreyana
© 2019 Belinda Lo
Ephedra torreyana
© 2019 Belinda Lo

Epilobium howellii    Subalpine fireweed,  Yuba pass willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium howellii
© 2010 Steve Matson
Epilobium howellii
© 2010 Steve Matson
Epilobium howellii
© 2010 Steve Matson

Epilobium luteum    Yellow willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium luteum
© 2020 Jane Cohn
Epilobium luteum
© 2020 Jane Cohn
Epilobium luteum
© 2020 Jane Cohn

Epilobium nivium    Snow mountain willowherb,  Snow mtn. willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium nivium
© 2024 Chloe Van Loon
Epilobium nivium
© 2024 Chloe Van Loon
Epilobium nivium
© 2024 Chloe Van Loon

Epilobium oreganum    Grants pass willowherb,  Oregon fireweed
rare native
Perennial herb

ONAGRACEAE

Epilobium oreganum
© 2015 Steve Matson
Epilobium oreganum
© 2015 Steve Matson
Epilobium oreganum
© 2015 Steve Matson

Epilobium palustre    Marsh willow herb,  Marsh willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium palustre
© 2015 Robert Carr
Epilobium palustre
© 2015 Robert Carr
Epilobium palustre
© 2015 Robert Carr

Epilobium rigidum    Siskiyou mtns. willowherb,  Stiff willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium rigidum
© 2022 Dee Shea Himes
Epilobium rigidum
© 2022 Dee Shea Himes
Epilobium rigidum
© 2022 Ryan O'Dell

Epilobium septentrionale    Humboldt county fuchsia,  Northern willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium septentrionale
© Jennifer Wheeler
Epilobium septentrionale
© Jennifer Wheeler
Epilobium septentrionale
© 2005 Jennifer L. Kalt

Epilobium siskiyouense    Siskiyou fireweed,  Siskiyou willowherb
rare native
Perennial herb

ONAGRACEAE

Epilobium siskiyouense
© 2019 Matt Berger
Epilobium siskiyouense
© 2023 Joaquin Hale
Epilobium siskiyouense
© 2021 Donald Burk

Equisetum palustre    Marsh horsetail
rare native
Fern (rhizomatous)

EQUISETACEAE

Equisetum palustre
© 2007 Dr. Amadej Trnkoczy
Equisetum palustre
© 2007 Dr. Amadej Trnkoczy
Equisetum palustre
© University and Jepson Herbaria

Eremalche kernensis    Kern mallow
native
Annual herb

MALVACEAE

Eremalche kernensis
© 2010 Aaron Schusteff
Eremalche kernensis
© 2023 Ellen Uhler
Eremalche kernensis
© 2023 Ellen Uhler

rare native
Annual herb

MALVACEAE

Eremalche parryi ssp. kernensis
© 2020 David Greenberger
Eremalche parryi ssp. kernensis
© 2018 Sarah Termondt
Eremalche parryi ssp. kernensis
© 2023 Mike Russler

Eremogone cliftonii    Clifton's eremogone
rare native
Perennial herb

CARYOPHYLLACEAE

Eremogone cliftonii
© 2020 David popp
Eremogone cliftonii
© 2019 David Greenberger
Eremogone cliftonii
© 2019 Belinda Lo

Eremogone congesta var. charlestonensis    Charleston sandwort
rare native
Perennial herb

CARYOPHYLLACEAE


Eremogone ursina    Big bear valley sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Eremogone ursina
© 2019 Matt Berger
Eremogone ursina
© 2019 Matt Berger
Eremogone ursina
© 2019 Matt Berger

Eremothera boothii ssp. alyssoides    Pine creek evening-primrose
rare native
Annual herb

ONAGRACEAE

Eremothera boothii ssp. alyssoides
© 2011 Gerald Carr
Eremothera boothii ssp. alyssoides
© 2011 Gerald Carr
Eremothera boothii ssp. alyssoides
© 2011 Gerald Carr

Eremothera boothii ssp. boothii    Booth's evening-primrose
rare native
Annual herb

ONAGRACEAE

Eremothera boothii ssp. boothii
© 2023 Cesar Garcia
Eremothera boothii ssp. boothii
© 2023 Cesar Garcia
Eremothera boothii ssp. boothii
© 2012 Keir Morse

Eremothera boothii ssp. intermedia    Booth's hairy evening-primrose
rare native
Annual herb

ONAGRACEAE

Eremothera boothii ssp. intermedia
© 2021 Ryan Carle

Eremothera minor    Nelson's evening-primrose
rare native
Annual herb

ONAGRACEAE

Eremothera minor
© 2011 Robert Carr
Eremothera minor
© 2011 Robert Carr
Eremothera minor
© 2011 Robert Carr

Eriastrum brandegeeae    Brandegee's eriastrum
rare native
Annual herb

POLEMONIACEAE

Eriastrum brandegeeae
© 2022 Steve Laymon
Eriastrum brandegeeae
© 2018 Chris McCarron
Eriastrum brandegeeae
© 2018 Chris McCarron

Eriastrum densifolium ssp. sanctorum    Santa ana river woollystar
rare native
Perennial herb

POLEMONIACEAE

Eriastrum densifolium ssp. sanctorum
© 2021 Aaron Echols
Eriastrum densifolium ssp. sanctorum
© 2015 Ron Vanderhoff
Eriastrum densifolium ssp. sanctorum
© 2014 Ron Vanderhoff

Eriastrum ertterae    Lime ridge eriastrum
rare native
Annual herb

POLEMONIACEAE

Eriastrum ertterae
© 2018 Chris McCarron
Eriastrum ertterae
© 2018 Chris McCarron
Eriastrum ertterae
© 2018 Chris McCarron

Eriastrum harwoodii    Harwood's eriastrum
rare native
Annual herb

POLEMONIACEAE

Eriastrum harwoodii
© 2017 Fred Melgert / Carla Hoegen
Eriastrum harwoodii
© 2017 Fred Melgert / Carla Hoegen
Eriastrum harwoodii
© 2008 Steve Matson

Eriastrum hooveri    Hoover's eriastrum,  Hoover's woollystar
rare native
Annual herb

POLEMONIACEAE

Eriastrum hooveri
© 2023 Mike Russler
Eriastrum hooveri
© 2024 Ryan O'Dell
Eriastrum hooveri
© 2023 Mike Russler

Eriastrum luteum    Yellow flowered eriastrum,  Yellow woollystar
rare native
Annual herb

POLEMONIACEAE

Eriastrum luteum
© 2005 Aaron Schusteff
Eriastrum luteum
© 2011 Chris Winchell

Eriastrum rosamondense    Rosamond eriastrum
rare native
Annual herb

POLEMONIACEAE

Eriastrum rosamondense
© 2020 Steve Matson
Eriastrum rosamondense
© 2024 Manzanita Dictionary
Eriastrum rosamondense
© 2020 Steve Matson

Eriastrum sparsiflorum    Few flowered vool star,  Great basin eriastrum,  Great basin woollystar
rare native
Annual herb

POLEMONIACEAE

Eriastrum sparsiflorum
© 2018 Mary Merriman
Eriastrum sparsiflorum
© 2020 Steve Matson
Eriastrum sparsiflorum
© 2020 Steve Matson

Eriastrum tracyi    Tracy's eriastrum
rare native
Annual herb

POLEMONIACEAE

Eriastrum tracyi
© 2020 David Greenberger
Eriastrum tracyi
© 2023 Aidan Marshall
Eriastrum tracyi
© 2021 Steve Laymon

Eriastrum virgatum    Virgate eriastrum,  Wand woollystar
rare native
Annual herb

POLEMONIACEAE

Eriastrum virgatum
© 2019 David Greenberger
Eriastrum virgatum
© 2022 Irene Rosen
Eriastrum virgatum
© 2021 Ryan Carle

Ericameria albida    White flowered rabbitbrush
rare native
Shrub

ASTERACEAE

Ericameria albida
© 2016 Steve Matson
Ericameria albida
© 2016 Steve Matson
Ericameria albida
© 2016 Steve Matson

Ericameria cuneata var. macrocephala    Cliff goldenbush,  Laguna mtns. goldenbush
rare native
Shrub

ASTERACEAE

Ericameria cuneata var. macrocephala
© 2014 Keir Morse
Ericameria cuneata var. macrocephala
© 2014 Keir Morse
Ericameria cuneata var. macrocephala
© 2014 Keir Morse

Ericameria fasciculata    Eastwood's goldenbush
rare native
Shrub

ASTERACEAE

Ericameria fasciculata
© 2022 R.A. Chasey
Ericameria fasciculata
© 2022 R.A. Chasey
Ericameria fasciculata
© Sally Childs

Ericameria gilmanii    Gilman's goldenbush,  Whiteflower goldenbush
rare native
Shrub

ASTERACEAE

Ericameria gilmanii
© 2013 Steve Matson
Ericameria gilmanii
© 2011 Steve Matson
Ericameria gilmanii
© 2011 Steve Matson

Ericameria nana    Dwarf goldenbush,  Rubberweed
rare native
Shrub

ASTERACEAE

Ericameria nana
© 2011 Steve Matson
Ericameria nana
© 2011 Steve Matson
Ericameria nana
© 2011 Steve Matson

Ericameria ophitidis    Serpentine goldenbush,  Serpentine macronema
rare native
Shrub

ASTERACEAE

Ericameria ophitidis
© 2005 Dean Wm. Taylor
Ericameria ophitidis
© Shasta-Trinity National Forest
Ericameria ophitidis
© 2024 Chloe and Trevor Van Loon

Ericameria palmeri var. palmeri    Palmer goldenweed,  Palmer's goldenbush,  Palmer's rabbitbrush
rare native
Shrub

ASTERACEAE

Ericameria palmeri var. palmeri
© 2016 Keir Morse
Ericameria palmeri var. palmeri
© 2020 Ron Vanderhoff
Ericameria palmeri var. palmeri
© 2020 Ron Vanderhoff

Erigeron aequifolius    Hall's daisy,  Hall's fleabane
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron aequifolius
© 2018 Steve Matson
Erigeron aequifolius
© 2018 Steve Matson
Erigeron aequifolius
© 2018 Steve Matson

Erigeron biolettii    Biolett's erigeron,  Streamside daisy
rare native
Perennial herb

ASTERACEAE

Erigeron biolettii
© 2023 R.A. Chasey
Erigeron biolettii
© 2019 R.A. Chasey
Erigeron biolettii
© 2019 R.A. Chasey

Erigeron blochmaniae    Blochman's erigeron,  Blochman's leafy daisy
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron blochmaniae
© 2003 Christopher L. Christie
Erigeron blochmaniae
© 2010 Chris Winchell

Erigeron bloomeri var. nudatus    Scabland fleabane,  Waldo daisy
rare native
Perennial herb

ASTERACEAE

Erigeron bloomeri var. nudatus
© 2008 Norman Jensen

Erigeron breweri var. jacinteus    Brewer's fleabane,  San Jacinto Mountains daisy
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron breweri var. jacinteus
© 2017 Steve McWilliams
Erigeron breweri var. jacinteus
© 2009 Thomas Stoughton
Erigeron breweri var. jacinteus
© 2009 Thomas Stoughton

Erigeron calvus    Bald daisy,  Bald fleabane
rare native
Perennial herb

ASTERACEAE


Erigeron cervinus    Siskiyou daisy,  Siskiyou fleabane
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron cervinus
© 2015 Steve Matson
Erigeron cervinus
© 2015 Steve Matson
Erigeron cervinus
© 2015 Steve Matson

Erigeron compactus    Fern leaved fleabane,  Fernleaf fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron compactus
© 2019 Steve Matson
Erigeron compactus
© 2016 Steve Matson
Erigeron compactus
© 2009 Steve Matson

Erigeron eatonii var. nevadincola    Eaton's fleabane,  Nevada daisy
rare native
Perennial herb

ASTERACEAE

Erigeron eatonii var. nevadincola
© 2024 Alaine Arslan
Erigeron eatonii var. nevadincola
© 2024 Alaine Arslan
Erigeron eatonii var. nevadincola
© 2023 Alaine Arslan

Erigeron elegantulus    Blue dwarf fleabane,  Volcanic daisy
rare native
Perennial herb

ASTERACEAE

Erigeron elegantulus
© 2022 Trevor Schalla
Erigeron elegantulus
© 2018 Cynthia Powell
Erigeron elegantulus
© 2018 Cynthia Powell

Erigeron greenei    Greene's narrow-leaved daisy
rare native
Perennial herb

ASTERACEAE

Erigeron greenei
© 2018 John Game
Erigeron greenei
© Morgan Stickrod
Erigeron greenei
© 2023 R.A. Chasey

Erigeron inornatus var. calidipetris    California rayless fleabane,  Hot rock daisy
rare native
Perennial herb

ASTERACEAE

Erigeron inornatus var. calidipetris
© 2024 Matt Berger
Erigeron inornatus var. calidipetris
© 2024 Matt Berger
Erigeron inornatus var. calidipetris
© 2024 Matt Berger

Erigeron inornatus var. keilii    Keil's daisy,  Keil's erigeron
rare native
Perennial herb

ASTERACEAE


Erigeron lassenianus var. deficiens    Mt. lassen fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron lassenianus var. deficiens
© 2017 David popp
Erigeron lassenianus var. deficiens
© 2024 Matt Berger
Erigeron lassenianus var. deficiens
© 2024 Matt Berger

Erigeron maniopotamicus    Mad river fleabane daisy
rare native
Perennial herb

ASTERACEAE

Erigeron maniopotamicus
© 2024 Chloe and Trevor Van Loon
Erigeron maniopotamicus
© 2024 Chloe and Trevor Van Loon
Erigeron maniopotamicus
© 2024 Chloe and Trevor Van Loon

Erigeron mariposanus    Mariposa daisy,  Mariposa erigeron
rare native
Perennial herb

ASTERACEAE


Erigeron miser    Starved daisy,  Starved fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron miser
© 2004 Steve Matson
Erigeron miser
© 2004 Steve Matson
Erigeron miser
© 2004 Steve Matson

Erigeron multiceps    Kern river daisy,  Kern river fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron multiceps
© 2021 David Greenberger
Erigeron multiceps
© 2003 Yulan Tong

Erigeron nivalis    Northern daisy
rare native
Perennial herb

ASTERACEAE

Erigeron nivalis
© 2023 Dana York
Erigeron nivalis
© 2023 Dana York
Erigeron nivalis
© 2023 Dana York

Erigeron oxyphyllus    Wand fleabane
rare native
Perennial herb

ASTERACEAE


Erigeron parishii    Parish fleabane,  Parish's daisy,  Parish's fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron parishii
© 2017 Thomas Egan
Erigeron parishii
© 2021 Maisie Borg
Erigeron parishii
© 2021 Maisie Borg

Erigeron petrophilus var. sierrensis    Northern sierra daisy,  Sierra erigeron
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron petrophilus var. sierrensis
© 2024 Matt Berger
Erigeron petrophilus var. sierrensis
© 2024 Matt Berger
Erigeron petrophilus var. sierrensis
© 2024 Matt Berger

Erigeron petrophilus var. viscidulus    Klamath daisy,  Rockloving erigeron
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron petrophilus var. viscidulus
© 2014 Steve Matson
Erigeron petrophilus var. viscidulus
© 2014 Steve Matson
Erigeron petrophilus var. viscidulus
© 2014 Steve Matson

Erigeron robustior    Willamette fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron robustior
© 2024 Chloe and Trevor Van Loon
Erigeron robustior
© 2024 Chloe and Trevor Van Loon
Erigeron robustior
© 2024 Chloe and Trevor Van Loon

Erigeron sanctarum    Saints' daisy,  Saints' fleabane
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron sanctarum
© 2023 Alex Heyman
Erigeron sanctarum
© 2024 Aaron Echols
Erigeron sanctarum
© 2023 Alex Heyman

Erigeron serpentinus    Serpentine daisy,  Serpentine erigeron
rare native
Perennial herb

ASTERACEAE

Erigeron serpentinus
© 2021 R.A. Chasey
Erigeron serpentinus
© 2021 R.A. Chasey
Erigeron serpentinus
© 2010 Tony Morosco

Erigeron supplex    Supple daisy,  Supple fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron supplex
© 2012 Asa Spade
Erigeron supplex
© 2015 Aaron Arthur
Erigeron supplex
© 2009 Halleh Paymard

Erigeron uncialis var. uncialis    Limestone daisy
rare native
Perennial herb

ASTERACEAE

Erigeron uncialis var. uncialis
© 2011 Steve Matson
Erigeron uncialis var. uncialis
© 2011 Steve Matson
Erigeron uncialis var. uncialis
© 2019 Matt Berger

Erigeron utahensis    Utah fleabane
rare native
Perennial herb

ASTERACEAE

Erigeron utahensis
© 2015 Ron Wolf
Erigeron utahensis
© 2015 Ron Wolf
Erigeron utahensis
© 2014 Ron Wolf

Eriodictyon altissimum    Indian knob mountainbalm
rare native
Shrub

NAMACEAE

Eriodictyon altissimum
© 2024 Mike Russler
Eriodictyon altissimum
© 2024 Mike Russler
Eriodictyon altissimum
© 2015 David Wolfson

Eriodictyon angustifolium    Narrow leaved yerba santa,  Narrowleaf yerba santa
rare native
Shrub

NAMACEAE

Eriodictyon angustifolium
© 2020 David Greenberger
Eriodictyon angustifolium
© 2019 Catherine Capone
Eriodictyon angustifolium
© 2007 Trent M. Draper

Eriodictyon capitatum    Lompoc yerba santa
rare native
Shrub

NAMACEAE

Eriodictyon capitatum
© Roxanne Bittman and CNPS
Eriodictyon capitatum
© 2013 Anuja Parikh and Nathan Gale
Eriodictyon capitatum
© 2013 Anuja Parikh and Nathan Gale

Eriodictyon sessilifolium    sessile-leaved yerba santa
rare native
Perennial Herb

NAMACEAE

Eriodictyon sessilifolium
© 2019 Alec Christensen
Eriodictyon sessilifolium
© 2019 Alec Christensen
Eriodictyon sessilifolium
© 2019 Alec Christensen

Eriogonum alexanderae    Alexander's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum alexanderae
© 2015 Jim Morefield
Eriogonum alexanderae
© 2015 Jim Morefield
Eriogonum alexanderae
© 2015 Jim Morefield

Eriogonum alpinum    Trinity buckwheat
rare native
Perennial herb (rhizomatous)

POLYGONACEAE

Eriogonum alpinum
© 2022 Glenn Fine
Eriogonum alpinum
© 2014 Steve Matson
Eriogonum alpinum
© 2019 Matt Berger

Eriogonum apricum var. apricum    Ione buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum apricum var. apricum
© 2024 Mike Russler
Eriogonum apricum var. apricum
© 2024 Mike Russler
Eriogonum apricum var. apricum
© 2024 Mike Russler

Eriogonum apricum var. prostratum    Irish hill buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum apricum var. prostratum
© 2001 George W. Hartwell
Eriogonum apricum var. prostratum
© 2001 George W. Hartwell
Eriogonum apricum var. prostratum
© 2009 George W. Hartwell

Eriogonum argillosum    Clay buckwheat,  Clay loving buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum argillosum
© 2023 Matt Berger
Eriogonum argillosum
© 2023 Matt Berger
Eriogonum argillosum
© 2023 Matt Berger

Eriogonum baileyi var. praebens    Bailey's buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum baileyi var. praebens
© 2010 Steve Matson
Eriogonum baileyi var. praebens
© 2010 Steve Matson
Eriogonum baileyi var. praebens
© 2010 Steve Matson

Eriogonum bifurcatum    Forked buckwheat,  Pahrump valley buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum bifurcatum
© 2010 Steve Matson
Eriogonum bifurcatum
© 2010 Steve Matson

Eriogonum breedlovei var. breedlovei    Breedlove's buckwheat,  Piute buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum breedlovei var. breedlovei
© 2021 Chris Leslie
Eriogonum breedlovei var. breedlovei
© 2021 Chris Leslie
Eriogonum breedlovei var. breedlovei
© 2021 Chris Leslie

Eriogonum breedlovei var. shevockii    Needle's buckwheat,  The needles buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum breedlovei var. shevockii
© 2023 Aidan Marshall
Eriogonum breedlovei var. shevockii
© 2023 Aidan Marshall
Eriogonum breedlovei var. shevockii
© 2023 Aidan Marshall

Eriogonum butterworthianum    Butterworth's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum butterworthianum
© 2019 Scott Yarger
Eriogonum butterworthianum
© 2019 Scott Yarger
Eriogonum butterworthianum
© 2019 Scott Yarger

Eriogonum callistum    Tehachapi buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum callistum
© 2014 Michael Charters
Eriogonum callistum
© 2014 Steve Matson
Eriogonum callistum
© 2014 Steve Matson

Eriogonum cedrorum    The cedars buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum cedrorum
© 2021 R.A. Chasey
Eriogonum cedrorum
© 2010 Tony Morosco
Eriogonum cedrorum
© 2021 R.A. Chasey

Eriogonum collinum    Hill buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum collinum
© 2010 Steve Matson
Eriogonum collinum
© 2010 Steve Matson

Eriogonum congdonii    Congdon's buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum congdonii
© 2014 Steve Matson
Eriogonum congdonii
© 2014 Steve Matson
Eriogonum congdonii
© 2019 Matt Berger

Eriogonum contiguum    Reveal's buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum contiguum
© 2016 Steve Matson
Eriogonum contiguum
© 2016 Steve Matson
Eriogonum contiguum
© 2024 Mike Russler

Eriogonum crocatum    Conejo buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum crocatum
© 2022 Aaron Echols
Eriogonum crocatum
© 2023 Steven M Norris
Eriogonum crocatum
© 2022 Aaron Echols

Eriogonum diclinum    Jaynes canyon buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum diclinum
© 2022 Dana York
Eriogonum diclinum
© 2022 Dana York
Eriogonum diclinum
© 2019 Matt Berger

Eriogonum eastwoodianum    Eastwood's buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum eastwoodianum
© 2021 Mike Russler
Eriogonum eastwoodianum
© 2021 Mike Russler
Eriogonum eastwoodianum
© 2021 Mike Russler

Eriogonum elegans    Elegant buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum elegans
© Chris Nelson
Eriogonum elegans
© Matt Reala
Eriogonum elegans
© 2009 Keir Morse

Eriogonum eremicola    Telescope peak buckwheat,  Wildrose canyon buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum eremicola
© 2007 Steve Matson
Eriogonum eremicola
© 2019 Matt Berger
Eriogonum eremicola
© 2024 Mike Russler

Eriogonum evanidum    Vanishing wild buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum evanidum
© 2009 Duncan S. Bell
Eriogonum evanidum
© 2009 Duncan S. Bell
Eriogonum evanidum
© 2008 Naomi Fraga

Eriogonum giganteum var. compactum    Santa barbara island buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum giganteum var. compactum
© 2024 Mary Ann Machi
Eriogonum giganteum var. compactum
© 2025 Mary Ann Machi
Eriogonum giganteum var. compactum
© 2025 Mary Ann Machi

Eriogonum giganteum var. formosum    San clemente island buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum giganteum var. formosum
© 2011 Dylan Neubauer
Eriogonum giganteum var. formosum
© 2011 Dylan Neubauer
Eriogonum giganteum var. formosum
© 2011 Dylan Neubauer

Eriogonum giganteum var. giganteum    Santa catalina island buckwheat,  St. catherine's lace
rare native
Shrub

POLYGONACEAE

Eriogonum giganteum var. giganteum
© 2016 Sunol Staff
Eriogonum giganteum var. giganteum
© 2016 Sunol Staff
Eriogonum giganteum var. giganteum
© 2016 Sunol Staff

Eriogonum gilmanii    Gilman's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum gilmanii
© 2024 Dana York
Eriogonum gilmanii
© 2017 Steve Matson
Eriogonum gilmanii
© 2022 Dana York

Eriogonum gossypinum    Cottony buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum gossypinum
© 2016 Steve Matson
Eriogonum gossypinum
© 2016 Steve Matson
Eriogonum gossypinum
© 2016 Steve Matson

Eriogonum grande var. grande    Island buckwheat,  Redflower buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum grande var. grande
© 2020 David Greenberger
Eriogonum grande var. grande
© 2014 Steve Matson
Eriogonum grande var. grande
© 2014 Steve Matson

Eriogonum grande var. rubescens    Red flowered buckwheat,  Redflower buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum grande var. rubescens
© 2023 David Strauch
Eriogonum grande var. rubescens
© 2006 Steve Matson
Eriogonum grande var. rubescens
© 2022 Ron Vanderhoff

Eriogonum grande var. timorum    San nicolas island buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum grande var. timorum
© 2011 Vince Scheidt
Eriogonum grande var. timorum
© 2011 Vince Scheidt
Eriogonum grande var. timorum
© 2009 Vince Scheidt

Eriogonum heermannii var. floccosum    Clark mountain buckwheat,  Clark mtn. buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum heermannii var. floccosum
© 2020 Matt Berger
Eriogonum heermannii var. floccosum
© 2020 Matt Berger
Eriogonum heermannii var. floccosum
© 2020 Matt Berger

Eriogonum heermannii var. occidentale    Western heermann's buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum heermannii var. occidentale
© 2021 Mike Russler
Eriogonum heermannii var. occidentale
© 2021 Mike Russler
Eriogonum heermannii var. occidentale
© 2022 Ryan O'Dell

Eriogonum heracleoides var. heracleoides    Parsnip flowered buckwheat,  Parsnipflower buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum heracleoides var. heracleoides
© 2009 Steven Perry
Eriogonum heracleoides var. heracleoides
© 2009 Steven Perry

Eriogonum hirtellum    Klamath mountain buckwheat,  Klamath mtn. buckwheat
rare native
Perennial herb (rhizomatous)

POLYGONACEAE

Eriogonum hirtellum
© 2024 Dana York
Eriogonum hirtellum
© 2024 Dana York
Eriogonum hirtellum
© 2024 Dana York

Eriogonum hoffmannii var. hoffmannii    Hoffmann's buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum hoffmannii var. hoffmannii
© 2024 Mike Russler
Eriogonum hoffmannii var. hoffmannii
© 2019 Matt Berger
Eriogonum hoffmannii var. hoffmannii
© 2019 Matt Berger

Eriogonum hoffmannii var. robustius    Robust hoffmann's buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum hoffmannii var. robustius
© 2024 Mike Russler
Eriogonum hoffmannii var. robustius
© 2024 Mike Russler
Eriogonum hoffmannii var. robustius
© 2019 Matt Berger

Eriogonum intrafractum    Jointed buckwheat,  Napkinring
rare native
Perennial herb

POLYGONACEAE

Eriogonum intrafractum
© 2020 Matt Berger
Eriogonum intrafractum
© 2020 Matt Berger
Eriogonum intrafractum
© 2020 Matt Berger

Eriogonum kelloggii    Kellogg's buckwheat,  Red mountain buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum kelloggii
© 2008 Kaylea Eickhoff
Eriogonum kelloggii
© 2024 Chloe and Trevor Van Loon
Eriogonum kelloggii
© 2024 Chloe and Trevor Van Loon

Eriogonum kennedyi var. alpigenum    Southern alpine buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum kennedyi var. alpigenum
© 2021 Aaron Echols
Eriogonum kennedyi var. alpigenum
© 2021 Aaron Echols
Eriogonum kennedyi var. alpigenum
© 2019 Manzanita Dictionary

Eriogonum kennedyi var. austromontanum    Southern mountain buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum kennedyi var. austromontanum
© 2016 Richard Spjut
Eriogonum kennedyi var. austromontanum
© 2024 Mike Russler
Eriogonum kennedyi var. austromontanum
© Geoff Burleigh

Eriogonum kennedyi var. pinicola    Kern buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum kennedyi var. pinicola
© 2019 Matt Berger
Eriogonum kennedyi var. pinicola
© 2019 Matt Berger
Eriogonum kennedyi var. pinicola
© 2019 Matt Berger

Eriogonum libertini    Dubakella mountain buckwheat,  Dubakella mtn. buckwheat,  Hoffman buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum libertini
© 2019 Steve Matson
Eriogonum libertini
© 2019 Steve Matson
Eriogonum libertini
© 2024 Chloe and Trevor Van Loon

Eriogonum luteolum var. caninum    Tiburon buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum luteolum var. caninum
© 2020 R.A. Chasey
Eriogonum luteolum var. caninum
© 2020 R.A. Chasey
Eriogonum luteolum var. caninum
© 2021 R.A. Chasey

Eriogonum luteolum var. saltuarium    Goldencarpet buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum luteolum var. saltuarium
© 2024 Mike Russler
Eriogonum luteolum var. saltuarium
© 2024 Mike Russler
Eriogonum luteolum var. saltuarium
© 2024 Mike Russler

Eriogonum mensicola    Crescent buckwheat
rare native
Perennial herb, Shrub

POLYGONACEAE

Eriogonum mensicola
© 2024 Mike Russler
Eriogonum mensicola
© 2019 Matt Berger
Eriogonum mensicola
© 2019 Matt Berger

Eriogonum microthecum var. alpinum    Alpine slender buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. alpinum
© 2012 Barry Breckling
Eriogonum microthecum var. alpinum
© 2016 John Doyen
Eriogonum microthecum var. alpinum
© 2016 John Doyen

Eriogonum microthecum var. johnstonii    Johnston's buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. johnstonii
© 2024 Manzanita Dictionary
Eriogonum microthecum var. johnstonii
© 2024 Manzanita Dictionary
Eriogonum microthecum var. johnstonii
© 2024 Manzanita Dictionary

Eriogonum microthecum var. lacus-ursi    Bear lake buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. lacus-ursi
© 2013 Gary A. Monroe
Eriogonum microthecum var. lacus-ursi
© 2013 Gary A. Monroe
Eriogonum microthecum var. lacus-ursi
© 2013 Gary A. Monroe

Eriogonum microthecum var. lapidicola    Inyo mtns. buckwheat,  Slender buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. lapidicola
© 2014 Steve Matson
Eriogonum microthecum var. lapidicola
© 2014 Steve Matson
Eriogonum microthecum var. lapidicola
© 2014 Steve Matson

Eriogonum microthecum var. panamintense    Panamint buckwheat,  Panamint mtns. buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. panamintense
© 2011 Steve Matson
Eriogonum microthecum var. panamintense
© 2019 Matt Berger
Eriogonum microthecum var. panamintense
© 2019 Matt Berger

Eriogonum microthecum var. schoolcraftii    Schoolcraft's wild buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum microthecum var. schoolcraftii
© 2020 Teague Embrey
Eriogonum microthecum var. schoolcraftii
© 2020 Teague Embrey
Eriogonum microthecum var. schoolcraftii
© 2020 Teague Embrey

Eriogonum nervulosum    Snow Mountain buckwheat
rare native
Perennial herb (rhizomatous)

POLYGONACEAE

Eriogonum nervulosum
© 2022 Ryan O'Dell
Eriogonum nervulosum
© 2009 Zoya Akulova
Eriogonum nervulosum
© 2010 Charles Patterson

Eriogonum nortonii    Pinnacles buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum nortonii
© 2024 Mike Russler
Eriogonum nortonii
© 2019 David Greenberger
Eriogonum nortonii
© 2024 Lynn Overtree

Eriogonum nudum var. decurrens    Ben lomond buckwheat,  Benlomond buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. decurrens
© 2022 Cara Wilcox
Eriogonum nudum var. decurrens
© 2012 Al Keuter
Eriogonum nudum var. decurrens
© 2022 Cara Wilcox

Eriogonum nudum var. indictum    Naked buckwheat,  Protruding buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. indictum
© 2021 Mike Russler
Eriogonum nudum var. indictum
© 2021 Mike Russler
Eriogonum nudum var. indictum
© 2021 Mike Russler

Eriogonum nudum var. murinum    Mouse buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. murinum
© 2022 Mike Russler
Eriogonum nudum var. murinum
© 2022 Mike Russler
Eriogonum nudum var. murinum
© 2022 Mike Russler

Eriogonum nudum var. paralinum    Del norte buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. paralinum
© 2010 Steve Matson
Eriogonum nudum var. paralinum
© 2010 Steve Matson
Eriogonum nudum var. paralinum
© 2010 Steve Matson

Eriogonum nudum var. psychicola    Antioch dunes buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. psychicola
© 2019 Cathie Moog
Eriogonum nudum var. psychicola
© 2024 Mike Russler
Eriogonum nudum var. psychicola
© 2024 Mike Russler

Eriogonum nudum var. regirivum    Kings river buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. regirivum
© 2024 Preston Ernest
Eriogonum nudum var. regirivum
© 2024 Preston Ernest
Eriogonum nudum var. regirivum
© 2024 Mike Russler

Eriogonum nutans var. nutans    Dugway buckwheat,  Nodding buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum nutans var. nutans
© 2012 Steve Matson
Eriogonum nutans var. nutans
© 2012 Steve Matson
Eriogonum nutans var. nutans
© 2012 Steve Matson

Eriogonum ochrocephalum var. ochrocephalum    White woolly buckwheat,  Whitewoolly buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ochrocephalum var. ochrocephalum
© 2010 Steve Matson
Eriogonum ochrocephalum var. ochrocephalum
© 2010 Steve Matson

Eriogonum ovalifolium var. depressum    Cushion buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ovalifolium var. depressum
© 2020 California Department of Fish and Wildlife
Eriogonum ovalifolium var. depressum
© 2020 California Department of Fish and Wildlife
Eriogonum ovalifolium var. depressum
© 2020 California Department of Fish and Wildlife

Eriogonum ovalifolium var. eximium    Brown margined buckwheat,  Brownmargin buckwheat,  Cushion buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ovalifolium var. eximium
© 2004 Steve Matson
Eriogonum ovalifolium var. eximium
© 2004 Steve Matson
Eriogonum ovalifolium var. eximium
© 2020 Bob Sweatt

rare native
Perennial herb

POLYGONACEAE

Eriogonum ovalifolium var. monarchense
© 1996 Dana York
Eriogonum ovalifolium var. monarchense
© 1996 Dana York
Eriogonum ovalifolium var. monarchense
© 1996 Dana York

Eriogonum ovalifolium var. vineum    Cushenbury buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ovalifolium var. vineum
© 2017 Thomas Egan
Eriogonum ovalifolium var. vineum
© 2023 Ron Vanderhoff
Eriogonum ovalifolium var. vineum
© 2017 Thomas Egan

Eriogonum pendulum    Waldo buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum pendulum
© 2009 Norman Jensen
Eriogonum pendulum
© 2008 Keir Morse
Eriogonum pendulum
© 2008 Keir Morse

Eriogonum polypodum    Foxtail buckwheat,  Tulare county buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum polypodum
© 2023 Chloe and Trevor Van Loon
Eriogonum polypodum
© 2023 Chloe and Trevor Van Loon
Eriogonum polypodum
© 2023 Chloe and Trevor Van Loon

Eriogonum prattenianum var. avium    Kettle dome buckwheat,  Nevada city buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum prattenianum var. avium
© 2010 Steve Matson
Eriogonum prattenianum var. avium
© 2010 Steve Matson
Eriogonum prattenianum var. avium
© 2010 Steve Matson

Eriogonum prociduum    Prostrate buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum prociduum
© 2010 Steve Matson
Eriogonum prociduum
© 2010 Steve Matson
Eriogonum prociduum
© 2001 John Game

Eriogonum pyrolifolium var. pyrolifolium    Pumice buckwheat,  Shasta buckwheat,  Wintergreen leaved buckwheat
rare native
Perennial herb, Shrub

POLYGONACEAE

Eriogonum pyrolifolium var. pyrolifolium
© 2019 Steve Matson
Eriogonum pyrolifolium var. pyrolifolium
© 2019 Steve Matson
Eriogonum pyrolifolium var. pyrolifolium
© 2019 Steve Matson

Eriogonum shockleyi var. shockleyi    Shockley's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum shockleyi var. shockleyi
© 2011 Steve Matson
Eriogonum shockleyi var. shockleyi
© 2023 Dana York
Eriogonum shockleyi var. shockleyi
© 2011 Steve Matson

Eriogonum siskiyouense    Siskiyou buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum siskiyouense
© 2017 John Rawlings
Eriogonum siskiyouense
© 2019 Matt Berger
Eriogonum siskiyouense
© 2014 Steve Matson

Eriogonum spectabile    Barron's buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum spectabile
© 2014 Tripp Mikich
Eriogonum spectabile
© 2015 Tim Kellison
Eriogonum spectabile
© 2015 Tim Kellison

Eriogonum spergulinum var. pratense    Spurry buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum spergulinum var. pratense
© 2019 Matt Berger
Eriogonum spergulinum var. pratense
© 2019 Matt Berger
Eriogonum spergulinum var. pratense
© 2020 Matt Berger

Eriogonum strictum var. greenei    Greene's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum strictum var. greenei
© 2017 Steve Matson
Eriogonum strictum var. greenei
© 2024 Dana York
Eriogonum strictum var. greenei
© 2020 R.A. Chasey

Eriogonum temblorense    Temblor buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum temblorense
© 2023 Matt Berger
Eriogonum temblorense
© 2023 Matt Berger
Eriogonum temblorense
© 2023 Matt Berger

Eriogonum ternatum    Ternate buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ternatum
© 2021 Don Hollander
Eriogonum ternatum
© 2021 Don Hollander
Eriogonum ternatum
© 2021 Don Hollander

Eriogonum thornei    Thorne's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum thornei
© 2005 James M. Andre
Eriogonum thornei
© 2008 Hartmut Wisch
Eriogonum thornei
© 2005 James M. Andre

Eriogonum tripodum    Tripod buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum tripodum
© 2023 Mike Russler
Eriogonum tripodum
© 2023 Mike Russler
Eriogonum tripodum
© 2023 Mike Russler

Eriogonum truncatum    Mt. Diablo buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum truncatum
© 2021 John Game
Eriogonum truncatum
© 2021 John Game

Eriogonum twisselmannii    Twisselmann's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum twisselmannii
© 1984 Geoff Burleigh
Eriogonum twisselmannii
© 2022 Duncan Bell
Eriogonum twisselmannii
© 2023 Aidan Marshall

Eriogonum umbellatum var. ahartii    Ahart's buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. ahartii
© 2022 Ryan O'Dell
Eriogonum umbellatum var. ahartii
© 2022 Ryan O'Dell
Eriogonum umbellatum var. ahartii
© 2024 Mike Russler

Eriogonum umbellatum var. bahiiforme    Sulphur buckwheat,  Sulphur flower buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. bahiiforme
© 2022 David Gowen
Eriogonum umbellatum var. bahiiforme
© 2022 David Gowen
Eriogonum umbellatum var. bahiiforme
© 2022 Ryan O'Dell

rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. glaberrimum
© 2007 F. Gauna
Eriogonum umbellatum var. glaberrimum
© 2007 F. Gauna

Eriogonum umbellatum var. humistratum    Mt. Eddy buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. humistratum
© 2011 Steve Matson
Eriogonum umbellatum var. humistratum
© 2011 Steve Matson
Eriogonum umbellatum var. humistratum
© 2011 Steve Matson

Eriogonum umbellatum var. juniporinum    Juniper buckwheat
rare native
Perennial herb

POLYGONACEAE


Eriogonum umbellatum var. lautum    Scott valley buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. lautum
© 2007 Dean Wm. Taylor, Ph.D.
Eriogonum umbellatum var. lautum
© 2007 Dean Wm. Taylor, Ph.D.
Eriogonum umbellatum var. lautum
© 2007 Dean Wm. Taylor, Ph.D.

Eriogonum umbellatum var. minus    Alpine sulfur flowered buckwheat,  Alpine sulphur flower buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. minus
© 2015 Keir Morse
Eriogonum umbellatum var. minus
© 2023 Keir Morse
Eriogonum umbellatum var. minus
© 2015 Keir Morse

Eriogonum umbellatum var. torreyanum    Donner pass buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum umbellatum var. torreyanum
© 2017 Steve Matson
Eriogonum umbellatum var. torreyanum
© 2012 Steve Matson
Eriogonum umbellatum var. torreyanum
© 2012 Steve Matson

Eriogonum ursinum var. erubescens    Blushing wild buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum ursinum var. erubescens
© 2024 Dana York
Eriogonum ursinum var. erubescens
© 2024 Dana York
Eriogonum ursinum var. erubescens
© 2024 Dana York

Eriogonum vestitum    Idria buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum vestitum
© 2021 Mike Russler
Eriogonum vestitum
© 2019 Adam Chasey
Eriogonum vestitum
© 2023 Ryan O'Dell

Eriogonum wrightii var. olanchense    Olancha peak buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum wrightii var. olanchense
© 2020 Matt Berger
Eriogonum wrightii var. olanchense
© 2020 Matt Berger
Eriogonum wrightii var. olanchense
© 2020 Matt Berger

Erioneuron pilosum    Hairy erioneuron,  Hairy woollygrass
rare native
Perennial grass

POACEAE

Erioneuron pilosum
© 2020 Matt Berger
Erioneuron pilosum
© 2011 Duncan S. Bell
Erioneuron pilosum
© 2013 Justy Leppert

Eriophorum gracile    Cottongrass,  Slender cotton grass,  Slender cottongrass
rare native
Perennial grasslike herb

CYPERACEAE

Eriophorum gracile
© 2020 Bob Sweatt
Eriophorum gracile
© 2018 Scott Yarger
Eriophorum gracile
© 2020 Bob Sweatt

Eriophyllum confertiflorum var. tanacetiflorum    Golden yarrow,  Tansy yarrow
rare native
Shrub

ASTERACEAE

Eriophyllum confertiflorum var. tanacetiflorum
© 2009 Dean Wm. Taylor, Ph.D.
Eriophyllum confertiflorum var. tanacetiflorum
© 2012 Lynn Robertson
Eriophyllum confertiflorum var. tanacetiflorum
© 2009 Dean Wm. Taylor, Ph.D.

Eriophyllum congdonii    Congdon's eriophyllum,  Congdon's woolly sunflower
rare native
Annual herb

ASTERACEAE

Eriophyllum congdonii
© 2009 Barry Breckling
Eriophyllum congdonii
© 2007 Aaron Schusteff

Eriophyllum jepsonii    Jepson eriophyllum,  Jepson's woolly sunflower
rare native
Perennial herb

ASTERACEAE

Eriophyllum jepsonii
© 2021 Mike Russler
Eriophyllum jepsonii
© 2021 Mike Russler
Eriophyllum jepsonii
© 2018 Richard Spjut

Eriophyllum lanatum var. hallii    Fort tejon woolly sunflower,  Hall's woolly sunflower
rare native
Perennial herb

ASTERACEAE

Eriophyllum lanatum var. hallii
© 2020 Stephanie Calloway
Eriophyllum lanatum var. hallii
© 2020 Mitchell Coleman
Eriophyllum lanatum var. hallii
© 2020 Mitchell Coleman

Eriophyllum lanatum var. obovatum    Common woolly sunflower,  Southern sierra woolly sunflower
rare native
Perennial herb

ASTERACEAE

Eriophyllum lanatum var. obovatum
© 2023 Diane Etchison
Eriophyllum lanatum var. obovatum
© 2023 Diane Etchison
Eriophyllum lanatum var. obovatum
© 2023 Mike Russler

Eriophyllum latilobum    San mateo woolly sunflower
rare native
Perennial herb

ASTERACEAE

Eriophyllum latilobum
© 2020 Diana Wahl
Eriophyllum latilobum
© 2015 Neal Kramer
Eriophyllum latilobum
© 2015 Neal Kramer

Eriophyllum mohavense    Barstow woolly sunflower,  Mojave woolly sunflower
rare native
Annual herb

ASTERACEAE

Eriophyllum mohavense
© 2020 Matt Berger
Eriophyllum mohavense
© 2020 Matt Berger
Eriophyllum mohavense
© 2023 Keir Morse

Eriophyllum nubigenum    Yosemite eriophyllum,  Yosemite woolly sunflower
rare native
Annual herb

ASTERACEAE

Eriophyllum nubigenum
© 2009 Barry Breckling
Eriophyllum nubigenum
© 2009 Barry Breckling

Eryngium aristulatum var. hooveri    Hoover's button celery,  Hoover's eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium aristulatum var. hooveri
© 2011 Aaron Arthur
Eryngium aristulatum var. hooveri
© 2014 Maya Goklany
Eryngium aristulatum var. hooveri
© 2010 Chris Winchell

Eryngium aristulatum var. parishii    Parish's eryngo,  San diego button celery
rare native
Annual, Perennial herb

APIACEAE

Eryngium aristulatum var. parishii
© 2019 Ron Vanderhoff
Eryngium aristulatum var. parishii
© 2023 Caitlin Kreutz
Eryngium aristulatum var. parishii
© 2019 Ron Vanderhoff

Eryngium constancei    Loch lomond button celery,  Loch lomond eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium constancei
© 2020 Tim Miller
Eryngium constancei
© 2022 Heather Morrison
Eryngium constancei
© 2022 Heather Morrison

Eryngium jepsonii    Jepson's eryngo
rare native
Perennial herb

APIACEAE

Eryngium jepsonii
© 2022 R.A. Chasey
Eryngium jepsonii
© 2021 R.A. Chasey
Eryngium jepsonii
© 2019 Ken Hickman

Eryngium pendletonense    Pendleton button-celery
rare native
Perennial herb

APIACEAE

Eryngium pendletonense
© 2014 Ron Vanderhoff
Eryngium pendletonense
© 2014 Ron Vanderhoff
Eryngium pendletonense
© 2020 Ron Vanderhoff

Eryngium pinnatisectum    Tuolumne button celery,  Tuolumne eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium pinnatisectum
© 2024 Chloe and Trevor Van Loon
Eryngium pinnatisectum
© 2024 Chloe and Trevor Van Loon
Eryngium pinnatisectum
© 2024 Chloe and Trevor Van Loon

Eryngium racemosum    Delta button celery,  Delta eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium racemosum
© 2020 Zoya Akulova
Eryngium racemosum
© 2010 Chris Winchell
Eryngium racemosum
© 2020 Zoya Akulova

Eryngium spinosepalum    Spiny sepaled button celery,  Spinysepal eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium spinosepalum
© 2017 Douglas Gordon-Blackwood
Eryngium spinosepalum
© 2023 Ryan O'Dell
Eryngium spinosepalum
© 2019 Dane Dettloff

Erysimum ammophilum    Coast wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum ammophilum
© 2016 Ron Vanderhoff
Erysimum ammophilum
© 2015 Julia King
Erysimum ammophilum
© 2021 Cara Wilcox

Erysimum capitatum var. angustatum    Contra costa wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum capitatum var. angustatum
© 2024 Randy Huey
Erysimum capitatum var. angustatum
© 2022 Dianne Lake
Erysimum capitatum var. angustatum
© 2018 Molly Ferrell

Erysimum capitatum var. lompocense    San luis obispo wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum capitatum var. lompocense
© Donald Myrick 1999 California Academy of Sciences
Erysimum capitatum var. lompocense
© 2006 Adonis (Don) Tate
Erysimum capitatum var. lompocense
© 2006 Adonis (Don) Tate

Erysimum concinnum    Headland wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum concinnum
© 2017 Steve Matson
Erysimum concinnum
© 2017 Steve Matson
Erysimum concinnum
© 2017 Steve Matson

Erysimum franciscanum    Franciscan wallflower,  San francisco wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum franciscanum
© 2019 Patrick Furtado
Erysimum franciscanum
© 2018 Ken Lunders
Erysimum franciscanum
© 2019 Jane Huber

Erysimum insulare    Island wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum insulare
© 2006 Steve Matson
Erysimum insulare
© 2006 Steve Matson
Erysimum insulare
© 2006 Steve Matson

Erysimum menziesii    Menzies' wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum menziesii
© 2018 Jonathan Lee
Erysimum menziesii
© 2025 Mary Ann Machi
Erysimum menziesii
© 2023 Bryce Ryals

Erysimum suffrutescens    Suffrutescent wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum suffrutescens
© 2020 David Greenberger
Erysimum suffrutescens
© 2020 David Greenberger
Erysimum suffrutescens
© 2024 Mike Russler

Erysimum teretifolium    Santa cruz wallflower
rare native
Annual, Perennial herb

BRASSICACEAE

Erysimum teretifolium
© 2022 R.A. Chasey
Erysimum teretifolium
© 2021 Cara Wilcox
Erysimum teretifolium
© 2011 Dylan Neubauer

Erythranthe acutidens    Kings River monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe acutidens
© 2020 Mike Russler
Erythranthe acutidens
© 2022 Mary Merriman
Erythranthe acutidens
© 2023 Charles Russell

Erythranthe calcicola    Limestone monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe calcicola
© 2019 Matt Berger
Erythranthe calcicola
© 2019 Steve Matson
Erythranthe calcicola
© 2019 Steve Matson

Erythranthe carsonensis    Carson valley monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe carsonensis
© 2013 Steve Matson
Erythranthe carsonensis
© 2013 Steve Matson
Erythranthe carsonensis
© 2013 Steve Matson

Erythranthe diffusa    Palomar monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe diffusa
© 2020 Ron Vanderhoff
Erythranthe diffusa
© 2024 Eric Merkt
Erythranthe diffusa
© 2019 Ron Vanderhoff

Erythranthe exigua    San Bernardino Mountains monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe exigua
© 2001 Steve Schoenig
Erythranthe exigua
© 2008 Naomi Fraga
Erythranthe exigua
© 2001 Steve Schoenig

Erythranthe filicaulis    slender-stemmed monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe filicaulis
© 2024 Mike Russler
Erythranthe filicaulis
© 2021 Charles Russell
Erythranthe filicaulis
© 2023 Richard Sullivan

Erythranthe filicifolia    fern-leaved monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe filicifolia
© 2025 Mike Russler
Erythranthe filicifolia
© 2025 Mike Russler
Erythranthe filicifolia
© 2024 Jordan Collins

Erythranthe glaucescens    shield-bracted monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe glaucescens
© 2021 Steve Matson
Erythranthe glaucescens
© 2021 Steve Matson
Erythranthe glaucescens
© 2023 Cheryl Ballantyne

Erythranthe gracilipes    slender-stalked monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe gracilipes
© 2021 Mike Russler
Erythranthe gracilipes
© 2021 Mike Russler
Erythranthe gracilipes
© 2021 Mike Russler

Erythranthe grayi    Gray's monkeyflower
rare native
Annual herb

PHRYMACEAE


Erythranthe hardhamiae    Santa lucia monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe hardhamiae
© 2013 Laura Ann Eliassen
Erythranthe hardhamiae
© 2014 Dylan Neubauer
Erythranthe hardhamiae
© © 2013 Laura Ann Eliassen

Erythranthe inconspicua    small-flowered monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe inconspicua
© 2022 Ken-ichi Ueda
Erythranthe inconspicua
© 2021 Mike Russler
Erythranthe inconspicua
© 2021 Mike Russler

Erythranthe inflatula    ephemeral monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe inflatula
© 2019 Matt Berger
Erythranthe inflatula
© 2019 Matt Berger
Erythranthe inflatula
© 2019 Matt Berger

Erythranthe laciniata    cut-leaved monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe laciniata
© 2020 Mark Kircher
Erythranthe laciniata
© 2022 Mike Russler
Erythranthe laciniata
© 2020 Mark Kircher

Erythranthe marmorata    Stanislaus monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe marmorata
© 2023 Ryan Donnelly
Erythranthe marmorata
© 2025 Mike Russler
Erythranthe marmorata
© 2025 Mike Russler

Erythranthe microphylla    Small leaved monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe microphylla
© 2019 Susan McDougall
Erythranthe microphylla
© 2021 Robert Steers
Erythranthe microphylla
© 2024 Mike Russler

Erythranthe norrisii    Kaweah monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe norrisii
© 2023 Matt Berger
Erythranthe norrisii
© 2023 Matt Berger
Erythranthe norrisii
© 2023 Matt Berger

Erythranthe nudata    bare monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe nudata
© 2014 John Doyen
Erythranthe nudata
© 2019 Chasey
Erythranthe nudata
© 2019 Paul Aigner

Erythranthe percaulis    Serpentine Canyon monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe percaulis
© 2025 Mike Russler
Erythranthe percaulis
© 2025 Mike Russler
Erythranthe percaulis
© 2025 Mike Russler

Erythranthe purpurea    little purple monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe purpurea
© 2023 Ruby Ayala
Erythranthe purpurea
© 2024 Ruby Ayala
Erythranthe purpurea
© 2023 Ryan O'Dell

Erythranthe rhodopetra    Red rock canyon monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe rhodopetra
© 2023 Bob Steele
Erythranthe rhodopetra
© 2020 Matt Berger
Erythranthe rhodopetra
© 2023 Bob Steele

Erythranthe shevockii    Kelso Creek monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe shevockii
© 2023 Bob Steele
Erythranthe shevockii
© 2016 John Doyen
Erythranthe shevockii
© 2024 Bob Steele

Erythranthe sierrae    Sierra nevada monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe sierrae
© 2021 Neal Kramer
Erythranthe sierrae
© 2021 Neal Kramer
Erythranthe sierrae
© 2023 Aidan Marshall

Erythranthe taylorii    Shasta limestone monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe taylorii
© 2024 Jordan Collins
Erythranthe taylorii
© 2024 Jordan Collins
Erythranthe taylorii
© 2024 Jordan Collins

Erythranthe trinitiensis    Pink-margined monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe trinitiensis
© 2019 Steve Matson
Erythranthe trinitiensis
© 2019 Steve Matson
Erythranthe trinitiensis
© 2019 Steve Matson

Erythranthe utahensis    Utah monkeyflower
rare native
Perennial herb

PHRYMACEAE


Erythronium citrinum var. citrinum    Cream fawnlily,  Lemon colored fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium citrinum var. citrinum
© 2022 Dana York
Erythronium citrinum var. citrinum
© 2024 Mary Ann Machi
Erythronium citrinum var. citrinum
© 2021 Dana York

Erythronium citrinum var. roderickii    Lemon colored fawn lily,  Roderick's fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium citrinum var. roderickii
© 2022 Christopher Collier
Erythronium citrinum var. roderickii
© 2018 Sierra Pacific Industries
Erythronium citrinum var. roderickii
© 2022 Christopher Collier

Erythronium helenae    Pacific fawnlily,  St. Helena fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium helenae
© 2016 Suzanne L. Weakley
Erythronium helenae
© 2020 John Game
Erythronium helenae
© 2020 Claudia Morgan

Erythronium hendersonii    Henderson's fawn lily,  Henderson's fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium hendersonii
© 2022 Dana York
Erythronium hendersonii
© 2022 Jerry Murray
Erythronium hendersonii
© 2022 Dana York

Erythronium howellii    Howell's fawn lily,  Howell's fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium howellii
© 2023 Dana York
Erythronium howellii
© 2023 Dana York
Erythronium howellii
© 2023 Dana York

Erythronium klamathense    Klamath fawn lily,  Klamath fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium klamathense
© 2020 Laura Bradley
Erythronium klamathense
© 2021 Dana York
Erythronium klamathense
© 2021 Dana York

Erythronium oregonum    Giant white fawnlily,  Oregon fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium oregonum
© 2019 Kolby Lundgren
Erythronium oregonum
© 2021 Steve Matson
Erythronium oregonum
© 2019 Kolby Lundgren

Erythronium pluriflorum    Manyflower fawnlily,  Shuteye peak fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium pluriflorum
© 2019 Jacob Smith
Erythronium pluriflorum
© 2019 Jacob Smith
Erythronium pluriflorum
© 2019 Jacob Smith

Erythronium pusaterii    Hocket lakes fawn lily,  Kaweah lakes fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium pusaterii
© 2010 John Game
Erythronium pusaterii
© 2020 John Game
Erythronium pusaterii
© 2016 Mark Stacy

Erythronium revolutum    Mahogany fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium revolutum
© 2021 Steve Conger
Erythronium revolutum
© 2021 Mary Ann Machi
Erythronium revolutum
© 2024 Steve Conger

Erythronium shastense    Shasta fawn lily
rare native
Perennial herb

LILIACEAE

Erythronium shastense
© 2013 Dana York
Erythronium shastense
© 2023 Morgan Stickrod
Erythronium shastense
© 2010 Julie A. Kierstead

Erythronium taylorii    Taylor's fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium taylorii
© 2018 Robert Barnard
Erythronium taylorii
© 2004 John Game
Erythronium taylorii
© 2010 Barry Breckling

Erythronium tuolumnense    Tuolumne fawn lily,  Tuolumne fawnlily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium tuolumnense
© 2019 Matt Berger
Erythronium tuolumnense
© 2024 Ty Childress
Erythronium tuolumnense
© 2021 Mike Russler

Eschscholzia androuxii    Joshua tree poppy
rare native
Annual herb

PAPAVERACEAE

Eschscholzia androuxii
© 2016 Stephen Hodges
Eschscholzia androuxii
© 2023 Catherine Chang
Eschscholzia androuxii
© 2019 Keir Morse

Eschscholzia hypecoides    Leafy stemmed poppy,  San benito poppy
rare native
Annual herb

PAPAVERACEAE

Eschscholzia hypecoides
© 2022 Mike Russler
Eschscholzia hypecoides
© 2022 Mike Russler
Eschscholzia hypecoides
© 2022 Mike Russler

rare native
Annual herb

PAPAVERACEAE

Eschscholzia lemmonii ssp. kernensis
© 2016 Steve Matson
Eschscholzia lemmonii ssp. kernensis
© 2016 Steve Matson
Eschscholzia lemmonii ssp. kernensis
© 2016 Steve Matson

rare native
Annual herb

PAPAVERACEAE

Eschscholzia minutiflora ssp. twisselmannii
© 2023 Mike Russler
Eschscholzia minutiflora ssp. twisselmannii
© 2023 Mike Russler
Eschscholzia minutiflora ssp. twisselmannii
© 2023 Mike Russler

Eschscholzia procera    Kernville poppy
rare native
Perennial herb

PAPAVERACEAE


Eschscholzia ramosa    Channel island poppy,  Island poppy
rare native
Annual herb

PAPAVERACEAE

Eschscholzia ramosa
© Geoff Burleigh
Eschscholzia ramosa
© 2011 Dylan Neubauer
Eschscholzia ramosa
© 2024 Jacob A

Eschscholzia rhombipetala    Diamond petaled california poppy,  Diamondpetal california poppy
rare native
Annual herb

PAPAVERACEAE

Eschscholzia rhombipetala
© 2012 Lisa Paterson
Eschscholzia rhombipetala
© 2015 Lesley Hamamoto
Eschscholzia rhombipetala
© 2012 Lisa Paterson

Coryphantha vivipara var. rosea    Spinystar,  Viviparous foxtail cactus
native
Shrub (stem succulent)

CACTACEAE

Coryphantha vivipara var. rosea
© 2005 James M. Andre
Coryphantha vivipara var. rosea
© 2010 John Game
Coryphantha vivipara var. rosea
© 2010 John Game

Eucephalus glabratus    Smooth aster
rare native
Perennial herb

ASTERACEAE

Eucephalus glabratus
© 2015 Gerald Carr
Eucephalus glabratus
© 2015 Gerald Carr
Eucephalus glabratus
© 2020 R.A. Chasey

Eucephalus vialis    Wayside aster
rare native
Perennial herb

ASTERACEAE

Eucephalus vialis
© 2008 Gerald Carr
Eucephalus vialis
© 2008 Gerald Carr
Eucephalus vialis
© 2008 Gerald Carr

Eucnide rupestris    Rock nettle
rare native
Annual herb

LOASACEAE

Eucnide rupestris
© 2023 Keir Morse
Eucnide rupestris
© 2023 Matt Berger
Eucnide rupestris
© 2018 Fred Melgert / Carla Hoegen

Euphorbia abramsiana    Abrams' spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia abramsiana
© 2012 Keir Morse
Euphorbia abramsiana
© 2012 Keir Morse
Euphorbia abramsiana
© 2012 Keir Morse

Euphorbia arizonica    Arizona spurge
rare native
Perennial herb

EUPHORBIACEAE

Euphorbia arizonica
© 2013 Keir Morse
Euphorbia arizonica
© 2013 Keir Morse
Euphorbia arizonica
© 2013 Keir Morse

Euphorbia exstipulata var. exstipulata    Clark Mountain spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia exstipulata var. exstipulata
© 2011 Keir Morse
Euphorbia exstipulata var. exstipulata
© 2011 Keir Morse
Euphorbia exstipulata var. exstipulata
© 2011 Keir Morse

Euphorbia hooveri    Hoover's spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia hooveri
© 2024 David popp
Euphorbia hooveri
© 2023 David popp
Euphorbia hooveri
© 2023 David popp

Euphorbia jaegeri    Orocopia mountains spurge
rare native
Shrub

EUPHORBIACEAE

Euphorbia jaegeri
© 2020 Matt Berger
Euphorbia jaegeri
© 2020 Matt Berger
Euphorbia jaegeri
© 2020 Matt Berger

Euphorbia misera    Cliff spurge
rare native
Shrub

EUPHORBIACEAE

Euphorbia misera
© 2020 Ron Vanderhoff
Euphorbia misera
© 2019 Ron Vanderhoff
Euphorbia misera
© 2019 Diane Etchison

Euphorbia ocellata ssp. rattanii    Stony creek spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia ocellata ssp. rattanii
© 2024 Donald Burk
Euphorbia ocellata ssp. rattanii
© 2024 Donald Burk
Euphorbia ocellata ssp. rattanii
© 2023 Donald Burk

Euphorbia parryi    Parry's spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia parryi
© 2011 Keir Morse
Euphorbia parryi
© 2011 Keir Morse
Euphorbia parryi
© 2011 Keir Morse

Euphorbia platysperma    Flat-seeded spurge
rare native
Annual herb

EUPHORBIACEAE


Euphorbia revoluta    Revolute spurge
rare native
Annual herb

EUPHORBIACEAE

Euphorbia revoluta
© 2011 Keir Morse
Euphorbia revoluta
© 2016 Keir Morse
Euphorbia revoluta
© 2011 Keir Morse

Euphorbia vallis-mortae    Death valley sandmat
rare native
Perennial herb

EUPHORBIACEAE

Euphorbia vallis-mortae
© © 2003 Aaron Schusteff
Euphorbia vallis-mortae
© 2012 Neal Kramer
Euphorbia vallis-mortae
© 2003 Aaron Schusteff

Euphrosyne acerosa    Copperwort
rare native
Perennial herb

ASTERACEAE

Euphrosyne acerosa
© 2010 James M. Andre
Euphrosyne acerosa
© 2023 Zoya Akulova-Barlow
Euphrosyne acerosa
© 2023 Zoya Akulova-Barlow

Euphrosyne nevadensis    Nevada wormwood
rare native
Annual herb

ASTERACEAE

Euphrosyne nevadensis
© 2012 Steve Matson
Euphrosyne nevadensis
© 2008 Steve Matson
Euphrosyne nevadensis
© 2012 Steve Matson

Eurybia merita    Subalpine aster
rare native
Perennial herb

ASTERACEAE

Eurybia merita
© 2003 Steve Matson
Eurybia merita
© 2003 Steve Matson
Eurybia merita
© 2003 Steve Matson

Extriplex joaquinana    San Joaquin spearscale
rare native
Annual herb

CHENOPODIACEAE

Extriplex joaquinana
© sheriff_woody_pct
Extriplex joaquinana
© 2017 Marco Siragusa
Extriplex joaquinana
© 2021 Cynthia Powell

Fendlerella utahensis    Utah fendlerbush,  Yerba desierto
rare native
Shrub

HYDRANGEACEAE

Fendlerella utahensis
© 2011 Steve Matson
Fendlerella utahensis
© 2011 Steve Matson
Fendlerella utahensis
© 2011 Steve Matson

Ferocactus viridescens    San diego barrel cactus,  San diego barrelcactus
rare native
Shrub (stem succulent)

CACTACEAE

Ferocactus viridescens
© 2019 Ron Vanderhoff
Ferocactus viridescens
© 2012 Keir Morse
Ferocactus viridescens
© 2023 Olga Batalov

Festuca minutiflora    Small flowered fescue,  Smallflower fescue
rare native
Perennial grass

POACEAE

Festuca minutiflora
© 2021 Roisin Murphy-Deak
Festuca minutiflora
© 2008 Steve Matson
Festuca minutiflora
© 1993 Dan Post

Fimbristylis thermalis    Hot springs fimbristylis,  Hot springs fimbry
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Fimbristylis thermalis
© 2020 Matt Berger
Fimbristylis thermalis
© 2010 Steve Matson
Fimbristylis thermalis
© 2019 Matt Berger

Fissidens aphelotaxifolius    Fissidens moss
rare native
Moss

FISSIDENTACEAE


Fissidens pauperculus    Fissidens moss
rare native
Moss

FISSIDENTACEAE

Fissidens pauperculus
© 2017 Thomas Reyes
Fissidens pauperculus
© 2017 Thomas Reyes

Frangula purshiana ssp. ultramafica    Caribou coffeeberry
rare native
Shrub

RHAMNACEAE

Frangula purshiana ssp. ultramafica
© 2019 David popp
Frangula purshiana ssp. ultramafica
© 2015 David popp
Frangula purshiana ssp. ultramafica
© 2020 David popp

Frankenia palmeri    Palmer's frankenia,  Palmer's seaheath,  Yerba reuma
rare native
Perennial herb

FRANKENIACEAE

Frankenia palmeri
© 2003 Debra Valov
Frankenia palmeri
© 2015 Wynn Anderson
Frankenia palmeri
© 2015 Wynn Anderson

rare native
Perennial herb

GENTIANACEAE

Frasera albicaulis var. modocensis
© 2022 Glenn Fine
Frasera albicaulis var. modocensis
© 2022 Glenn Fine
Frasera albicaulis var. modocensis
© 2022 Glenn Fine

Frasera albomarginata var. albomarginata    Desert green-gentian
rare native
Perennial herb

GENTIANACEAE

Frasera albomarginata var. albomarginata
© 2020 David Greenberger
Frasera albomarginata var. albomarginata
© 2024 Dana York
Frasera albomarginata var. albomarginata
© 2024 Dana York

Frasera albomarginata var. induta    Clark mountain green-gentian
rare native
Perennial herb

GENTIANACEAE

Frasera albomarginata var. induta
© 2005 James M. Andre
Frasera albomarginata var. induta
© 2020 Matt C. Berger
Frasera albomarginata var. induta
© 2008 Jason E. Willand

Frasera neglecta    Pine green-gentian
rare native
Perennial herb

GENTIANACEAE

Frasera neglecta
© 2014 Steve Matson
Frasera neglecta
© 2014 Steve Matson
Frasera neglecta
© 2014 Steve Matson

Frasera tubulosa    Kern frasera
rare native
Perennial herb

GENTIANACEAE

Frasera tubulosa
© 2019 Matt Berger
Frasera tubulosa
© 2019 Matt Berger
Frasera tubulosa
© 2022 richard mcneill

Frasera umpquaensis    Umpqua green-gentian
rare native
Perennial herb

GENTIANACEAE

Frasera umpquaensis
© 2010 Norman Jensen
Frasera umpquaensis
© 2008 Amanda Shufelberger
Frasera umpquaensis
© 2008 Amanda Shufelberger

Fraxinus parryi    Chaparral ash
rare native
Shrub

OLEACEAE

Fraxinus parryi
© 2003 Charles E. Jones
Fraxinus parryi
© 2003 Charles E. Jones

Fremontodendron decumbens    Pine hill flannelbush
rare native
Shrub

MALVACEAE

Fremontodendron decumbens
© 2022 Charles Russell
Fremontodendron decumbens
© 2020 Virginia Meyer
Fremontodendron decumbens
© 2020 Virginia Meyer

Fremontodendron mexicanum    Mexican flannelbush
rare native
Shrub

MALVACEAE

Fremontodendron mexicanum
© 2016 Jonathan Mercado
Fremontodendron mexicanum
© 2017 Torrey neel
Fremontodendron mexicanum
© 2023 Ron Vanderhoff

Fritillaria agrestis    Stinkbells
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria agrestis
© 2021 Mike Russler
Fritillaria agrestis
© 2023 Morgan Stickrod
Fritillaria agrestis
© 2021 Damon Tighe

Fritillaria biflora var. ineziana    Hillsborough chocolate lily
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria biflora var. ineziana
© 2004 Toni Corelli
Fritillaria biflora var. ineziana
© 2004 Toni Corelli
Fritillaria biflora var. ineziana
© 2004 Toni Corelli

Fritillaria brandegeei    Greenhorn fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria brandegeei
© 2020 Tom Lotshaw
Fritillaria brandegeei
© 2021 Bob Steele
Fritillaria brandegeei
© 2023 Mike Russler

Fritillaria eastwoodiae    Butte county fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria eastwoodiae
© 2019 Matt Berger
Fritillaria eastwoodiae
© 2025 Mike Russler
Fritillaria eastwoodiae
© 2009 Julie A. Kierstead

Fritillaria falcata    Talus fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria falcata
© Ken-ichi Ueda
Fritillaria falcata
© 2019 Matt Berger
Fritillaria falcata
© 2023 Mike Russler

Fritillaria gentneri    Gentner's fritillary
rare native
Perennial herb

LILIACEAE

Fritillaria gentneri
© 2005 Kathleen Moody
Fritillaria gentneri
© 2008 Shawn DeCew
Fritillaria gentneri
© 2013 Scot Loring

Fritillaria glauca    Siskiyou fritillary,  Siskiyou missionbells
rare native
Perennial herb

LILIACEAE

Fritillaria glauca
© 2024 Damon Tighe
Fritillaria glauca
© 2019 Joey Santore
Fritillaria glauca
© 2020 Tim Miller

Fritillaria lanceolata var. tristulis    Marin checker lily
rare native
Perennial herb

LILIACEAE

Fritillaria lanceolata var. tristulis
© 2017 Marabeth Grahame
Fritillaria lanceolata var. tristulis
© 2020 David Greenberger
Fritillaria lanceolata var. tristulis
© 2021 R.A. Chasey

Fritillaria liliacea    Fragrant fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria liliacea
© 2017 Steve Matson
Fritillaria liliacea
© 2017 Steve Matson
Fritillaria liliacea
© 2017 Steve Matson

Fritillaria ojaiensis    Ojai fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria ojaiensis
© 2020 John Game
Fritillaria ojaiensis
© 2020 G Froelich
Fritillaria ojaiensis
© 2019 Bryant Baker

Fritillaria pinetorum    Pine woods fritillary,  Pinewoods fritillary
rare native
Perennial herb

LILIACEAE

Fritillaria pinetorum
© 2023 Bryant Baker
Fritillaria pinetorum
© 2023 Bryant Baker
Fritillaria pinetorum
© 2012 Steve Matson

Fritillaria pluriflora    Adobe lily
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria pluriflora
© 2015 Steve Matson
Fritillaria pluriflora
© 2015 Steve Matson
Fritillaria pluriflora
© 2015 Steve Matson

Fritillaria purdyi    Purdy's fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria purdyi
© 2020 Steve Conger
Fritillaria purdyi
© 2023 Timothy Boomer
Fritillaria purdyi
© 2023 Timothy Boomer

Fritillaria roderickii    Roderick's fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria roderickii
© 2021 R.A. Chasey
Fritillaria roderickii
© 2024 Mike Russler
Fritillaria roderickii
© 2021 R.A. Chasey

Fritillaria striata    Striped adobe lily
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria striata
© 2016 Steve Matson
Fritillaria striata
© 2016 Steve Matson
Fritillaria striata
© 2024 Mike Russler

Fritillaria viridea    San benito fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria viridea
© 2024 Steve Matson
Fritillaria viridea
© 2024 Steve Matson
Fritillaria viridea
© 2024 Steve Matson

Funastrum crispum    Wavyleaf twinevine
rare native
Perennial herb

APOCYNACEAE

Funastrum crispum
© 2016 Keir Morse
Funastrum crispum
© 2016 Keir Morse
Funastrum crispum
© 2016 Keir Morse

Funastrum utahense    Utah vine milkweed
rare native
Perennial herb

APOCYNACEAE

Funastrum utahense
© 2019 Diane Etchison
Funastrum utahense
© 2016 Fred Melgert
Funastrum utahense
© 2010 Neal Kramer

Galium andrewsii ssp. gatense    Serpentine bedstraw
rare native
Perennial herb

RUBIACEAE

Galium andrewsii ssp. gatense
© 2019 David Greenberger
Galium andrewsii ssp. gatense
© 2019 Steve Matson
Galium andrewsii ssp. gatense
© 2019 Steve Matson

rare native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. borregoense
© 2012 Keir Morse
Galium angustifolium ssp. borregoense
© 2012 Keir Morse
Galium angustifolium ssp. borregoense
© 2012 Keir Morse

Galium angustifolium ssp. gabrielense    San antoinio canyon bedstraw,  San antonio canyon bedstraw
rare native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. gabrielense
© 2019 Keir Morse
Galium angustifolium ssp. gabrielense
© 2019 Keir Morse
Galium angustifolium ssp. gabrielense
© 2019 Keir Morse

Galium angustifolium ssp. gracillimum    Narrow leaved bedstraw,  Slender bedstraw
rare native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. gracillimum
© 2022 Eric Koberle
Galium angustifolium ssp. gracillimum
© 2022 Eric Koberle
Galium angustifolium ssp. gracillimum
© 2022 Eric Koberle

Galium angustifolium ssp. jacinticum    San jacinto bedstraw,  San jacinto mtns. bedstraw
rare native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. jacinticum
© 2015 Keir Morse
Galium angustifolium ssp. jacinticum
© 2015 Keir Morse
Galium angustifolium ssp. jacinticum
© 2015 Keir Morse

Galium angustifolium ssp. onycense    Onyx peak bedstraw
rare native
Perennial herb

RUBIACEAE


Galium buxifolium    Box bedstraw
rare native
Shrub

RUBIACEAE

Galium buxifolium
© 2021 James Bailey
Galium buxifolium
© 2024 Chloe and Trevor Van Loon
Galium buxifolium
© 2024 Chloe and Trevor Van Loon

Galium californicum ssp. luciense    Cone peak bedstraw
rare native
Perennial herb

RUBIACEAE

Galium californicum ssp. luciense
© 2021 Kristen Nelson
Galium californicum ssp. luciense
© 2021 Kristen Nelson
Galium californicum ssp. luciense
© 2021 Kristen Nelson

Galium californicum ssp. miguelense    San miguel island bedstraw
rare native
Perennial herb

RUBIACEAE

Galium californicum ssp. miguelense
© 2006 Steve Matson
Galium californicum ssp. miguelense
© 2006 Steve Matson
Galium californicum ssp. miguelense
© 2006 Steve Matson

Galium californicum ssp. primum    California bedstraw
rare native
Perennial herb

RUBIACEAE

Galium californicum ssp. primum
© 2013 Keir Morse
Galium californicum ssp. primum
© 2013 Keir Morse
Galium californicum ssp. primum
© 2013 Keir Morse

Galium californicum ssp. sierrae    El dorado bedstraw
rare native
Perennial herb

RUBIACEAE

Galium californicum ssp. sierrae
© 2023 Jake Picardat
Galium californicum ssp. sierrae
© 2002 Steve Tyron
Galium californicum ssp. sierrae
© 2011 Steven Perry

Galium catalinense ssp. acrispum    San clemente island bedstraw,  Santa clemente island bedstraw
rare native
Shrub

RUBIACEAE

Galium catalinense ssp. acrispum
© 2011 Dylan Neubauer
Galium catalinense ssp. acrispum
© 2002 Dean Wm. Taylor
Galium catalinense ssp. acrispum
© 2011 Neal Kramer

Galium catalinense ssp. catalinense    Santa catalina island bedstraw
rare native
Shrub

RUBIACEAE

Galium catalinense ssp. catalinense
© 2025 Ron Vanderhoff
Galium catalinense ssp. catalinense
© 2025 Ron Vanderhoff
Galium catalinense ssp. catalinense
© 2025 Ron Vanderhoff

Galium clementis    Santa Lucia bedstraw
rare native
Perennial herb

RUBIACEAE

Galium clementis
© 2005 Dean Wm. Taylor, Ph.D.
Galium clementis
© 2005 Dean Wm. Taylor, Ph.D.

Galium cliftonsmithii    Santa barbara bedstraw
rare native
Perennial herb

RUBIACEAE

Galium cliftonsmithii
© 2019 Justin Luong
Galium cliftonsmithii
© 2023 Keir Morse
Galium cliftonsmithii
© 2023 Keir Morse

Galium glabrescens ssp. modocense    Modoc bedstraw
rare native
Perennial herb

RUBIACEAE

Galium glabrescens ssp. modocense
© Gary Schoolcraft and CNPS
Galium glabrescens ssp. modocense
© Gary Schoolcraft and CNPS

Galium grande    San gabriel bedstraw
rare native
Shrub

RUBIACEAE

Galium grande
© 2023 Keir Morse
Galium grande
© 2023 Keir Morse
Galium grande
© 2023 Keir Morse

Galium hardhamiae    Hardham's bedstraw
rare native
Perennial herb

RUBIACEAE

Galium hardhamiae
© 1984 California Native Plant Society
Galium hardhamiae
© 1984 California Native Plant Society

Galium hilendiae ssp. carneum    Panamint mountains bedstraw,  Panamint mtns. bedstraw
rare native
Perennial herb

RUBIACEAE

Galium hilendiae ssp. carneum
© 2011 Steve Matson
Galium hilendiae ssp. carneum
© 2019 Matt Berger
Galium hilendiae ssp. carneum
© 2011 Steve Matson

Galium hilendiae ssp. kingstonense    Kingston mountains bedstraw,  Kingston mtns. bedstraw
rare native
Perennial herb

RUBIACEAE

Galium hilendiae ssp. kingstonense
© 2011 Duncan S. Bell
Galium hilendiae ssp. kingstonense
© 2011 Duncan S. Bell
Galium hilendiae ssp. kingstonense
© 2011 Duncan S. Bell

Galium hypotrichium ssp. tomentellum    Alpine bedstraw,  Telescope peak bedstraw
rare native
Perennial herb

RUBIACEAE

Galium hypotrichium ssp. tomentellum
© 2011 Steve Matson
Galium hypotrichium ssp. tomentellum
© 2023 Chloe and Trevor Van Loon
Galium hypotrichium ssp. tomentellum
© 2011 Steve Matson

Galium jepsonii    Jepson's bedstraw
rare native
Perennial herb (rhizomatous)

RUBIACEAE

Galium jepsonii
© 2015 Keir Morse
Galium jepsonii
© 2015 Keir Morse
Galium jepsonii
© 2021 Joy England

Galium johnstonii    Johnston's bedstraw
rare native
Perennial herb

RUBIACEAE

Galium johnstonii
© 2014 Keir Morse
Galium johnstonii
© 2014 Keir Morse
Galium johnstonii
© 2014 Keir Morse

Galium munzii    Munz's bedstraw
rare native
Perennial herb

RUBIACEAE


Galium nuttallii ssp. insulare    Climbing bedstraw,  Nuttall's island bedstraw,  Nuttall'sisland bedstraw
rare native
Perennial herb

RUBIACEAE

Galium nuttallii ssp. insulare
© 2006 Steve Matson
Galium nuttallii ssp. insulare
© 2006 Steve Matson
Galium nuttallii ssp. insulare
© 2006 Steve Matson

Galium oreganum    Oregon bedstraw
rare native
Perennial herb (rhizomatous)

RUBIACEAE

Galium oreganum
© 2018 Scot Loring
Galium oreganum
© 2009 Norman Jensen
Galium oreganum
© 2018 Susan McDougall

Galium proliferum    Desert bedstraw,  Limestone bedstraw
rare native
Annual herb

RUBIACEAE

Galium proliferum
© 2011 Duncan S. Bell
Galium proliferum
© 2011 Teague Embrey
Galium proliferum
© 2011 Duncan S. Bell

Galium serpenticum ssp. scotticum    Scott mountain bedstraw,  Scott mtn. bedstraw
rare native
Perennial herb

RUBIACEAE

Galium serpenticum ssp. scotticum
© 2011 Steve Matson
Galium serpenticum ssp. scotticum
© 2011 Steve Matson
Galium serpenticum ssp. scotticum
© 2024 Jordan Collins

Galium serpenticum ssp. warnerense    Warner mountains bedstraw,  Warner mtns. bedstraw
rare native
Perennial herb (rhizomatous)

RUBIACEAE

Galium serpenticum ssp. warnerense
© 2018 Scot Loring
Galium serpenticum ssp. warnerense
© 2018 Scot Loring
Galium serpenticum ssp. warnerense
© 2018 Scot Loring

Galium wrightii    Wright's bedstraw,  Wright's galium
rare native
Perennial herb

RUBIACEAE


Gambelia speciosa    Showy island snapdragon
rare native
Shrub

PLANTAGINACEAE

Gambelia speciosa
© 2020 Susan McDougall
Gambelia speciosa
© 2020 Susan McDougall
Gambelia speciosa
© 2017 B.J. Dion

Gentiana fremontii    Moss gentian
rare native
Annual herb

GENTIANACEAE

Gentiana fremontii
© 2010 John Game
Gentiana fremontii
© 2010 John Game
Gentiana fremontii
© 2010 John Game

Gentiana plurisetosa    Bristly gentian,  Klamath gentian
rare native
Perennial herb

GENTIANACEAE

Gentiana plurisetosa
© 2016 Dana York
Gentiana plurisetosa
© 2019 Michael Kauffmann
Gentiana plurisetosa
© 2023 Braden Herman

Gentiana prostrata    Pygmy gentian
rare native
Perennial herb

GENTIANACEAE

Gentiana prostrata
© 2024 Erin Bergman
Gentiana prostrata
© 2024 Erin Bergman
Gentiana prostrata
© Gerald and Buff Corsi 2010 California Academy of Sciences

Gentiana setigera    Mendocino gentian
rare native
Perennial herb

GENTIANACEAE

Gentiana setigera
© 2007 Keir Morse
Gentiana setigera
© 2007 Keir Morse
Gentiana setigera
© 2007 Keir Morse

Geothallus tuberosus    Campbell's liverwort
rare native
Liverwort

SPHAEROCARPACEAE

Geothallus tuberosus
© 2023 Nathan Taylor
Geothallus tuberosus
© 2023 Nathan Taylor
Geothallus tuberosus
© 2023 Nathan Taylor

Geraea viscida    Sticky desertsunflower,  Sticky geraea
rare native
Perennial herb

ASTERACEAE

Geraea viscida
© 2019 Matt Berger
Geraea viscida
© 2019 Matt Berger
Geraea viscida
© 2019 Matt Berger

Geum aleppicum    Aleppo avens,  Yellow avens
rare native
Perennial herb

ROSACEAE

Geum aleppicum
© 2010 Louis-M. Landry
Geum aleppicum
© 2015 Barry Breckling
Geum aleppicum
© 2023 John Malpas

Gilia capitata ssp. chamissonis    Blue field gilia,  Bluehead gilia,  Dune gilia
rare native
Annual herb

POLEMONIACEAE

Gilia capitata ssp. chamissonis
© 2013 Scott Simono
Gilia capitata ssp. chamissonis
© 2013 Scott Simono
Gilia capitata ssp. chamissonis
© 2023 R.A. Chasey

Gilia capitata ssp. pacifica    Pacific blue field gilia,  Pacific gilia
rare native
Annual herb

POLEMONIACEAE

Gilia capitata ssp. pacifica
© 2016 Steve Matson
Gilia capitata ssp. pacifica
© 2016 Steve Matson
Gilia capitata ssp. pacifica
© 2016 Steve Matson

Gilia capitata ssp. tomentosa    Bluehead gilia,  Hairy blue field gilia
rare native
Annual herb

POLEMONIACEAE

Gilia capitata ssp. tomentosa
© 2023 R.A. Chasey
Gilia capitata ssp. tomentosa
© 2022 R.A. Chasey
Gilia capitata ssp. tomentosa
© 2020 R.A. Chasey

Gilia interior    Inland gilia
rare native
Annual herb

POLEMONIACEAE

Gilia interior
© 2023 Mike Russler
Gilia interior
© 2023 Mary Merriman
Gilia interior
© 2023 Mike Russler

Gilia latiflora ssp. cuyamensis    Cuyama gilia,  Hollyleaf gilia
rare native
Annual herb

POLEMONIACEAE

Gilia latiflora ssp. cuyamensis
© 2012 Michael Charters
Gilia latiflora ssp. cuyamensis
© 2012 Michael Charters
Gilia latiflora ssp. cuyamensis
© 2012 Michael Charters

Gilia leptantha ssp. leptantha    Fine flower gilia,  Fineflower gilia
rare native
Annual herb

POLEMONIACEAE

Gilia leptantha ssp. leptantha
© 2016 Steven Thorsted
Gilia leptantha ssp. leptantha
© 2009 Duncan S. Bell
Gilia leptantha ssp. leptantha
© 2009 Duncan S. Bell

Gilia leptantha ssp. pinetorum    Fineflower gilia,  Pine gilia
rare native
Annual herb

POLEMONIACEAE

Gilia leptantha ssp. pinetorum
© 2016 Keir Morse
Gilia leptantha ssp. pinetorum
© 2016 Keir Morse
Gilia leptantha ssp. pinetorum
© 2018 Neal Kramer

Gilia mexicana    El paso gilia
rare native
Annual herb

POLEMONIACEAE

Gilia mexicana
© 2018 Wynn Anderson
Gilia mexicana
© 2018 Wynn Anderson
Gilia mexicana
© 2018 Wynn Anderson

Gilia millefoliata    Manyleaf gilia
rare native
Annual herb

POLEMONIACEAE

Gilia millefoliata
© 2024 Steve Conger
Gilia millefoliata
© 2024 Steve Conger
Gilia millefoliata
© 2024 Mary Ann Machi

Gilia nevinii    Nevin's gilia
rare native
Annual herb

POLEMONIACEAE

Gilia nevinii
© 2011 Dylan Neubauer
Gilia nevinii
© 2011 Neal Kramer
Gilia nevinii
© 2011 Michelle Cloud-Hughes

Gilia tenuiflora ssp. amplifaucalis    Greater yellowthroat gilia,  Spreading slender flowered gilia
rare native
Annual herb

POLEMONIACEAE


Gilia tenuiflora ssp. arenaria    Greater yellowthroat gilia,  Sand gilia
rare native
Annual herb

POLEMONIACEAE

Gilia tenuiflora ssp. arenaria
© 2017 Wes Gray
Gilia tenuiflora ssp. arenaria
© 2017 Wes Gray
Gilia tenuiflora ssp. arenaria
© F. Howitt © 2002 California Academy of Sciences

Gilia tenuiflora ssp. hoffmannii    Hoffman's gilia,  Hoffman's slender flowered gilia,  Hoffmann's slender flowered gilia
rare native
Annual herb

POLEMONIACEAE

Gilia tenuiflora ssp. hoffmannii
© 2000 John Game
Gilia tenuiflora ssp. hoffmannii
© 2000 John Game

Gilia yorkii    Boyden cave gilia
rare native
Annual herb

POLEMONIACEAE

Gilia yorkii
© 2010 Dana York
Gilia yorkii
© 2010 Dana York
Gilia yorkii
© 2010 Dana York

Gilmania luteola    Golden carpet,  Goldencarpet
rare native
Annual herb

POLYGONACEAE

Gilmania luteola
© 2021 Steve Matson
Gilmania luteola
© 2020 Matt Berger
Gilmania luteola
© 2020 Matt Berger

Githopsis diffusa ssp. filicaulis    Mission canyon bluecup,  San gabriel bluecup
rare native
Annual herb

CAMPANULACEAE


Githopsis pulchella ssp. serpentinicola    Serpentine bluecup,  Sierra bluecup
rare native
Annual herb

CAMPANULACEAE

Githopsis pulchella ssp. serpentinicola
© 2022 Mike Russler
Githopsis pulchella ssp. serpentinicola
© 2022 Mike Russler
Githopsis pulchella ssp. serpentinicola
© 2022 Mike Russler

Githopsis tenella    Tube flower bluecup,  Tubeflower bluecup
rare native
Annual herb

CAMPANULACEAE

Githopsis tenella
© 2023 Chloe and Trevor Van Loon
Githopsis tenella
© 2023 Chloe and Trevor Van Loon
Githopsis tenella
© 2023 Chloe and Trevor Van Loon

Glehnia littoralis ssp. leiocarpa    American glehnia,  American silvertop
rare native
Perennial herb

APIACEAE

Glehnia littoralis ssp. leiocarpa
© 2017 Steve Matson
Glehnia littoralis ssp. leiocarpa
© 2017 Steve Matson
Glehnia littoralis ssp. leiocarpa
© 2017 Steve Matson

Glossopetalon pungens    Dwarf greasebush,  Pungent glossopetalon,  Smooth greasewood
rare native
Shrub

CROSSOSOMATACEAE

Glossopetalon pungens
© 2010 James M. Andre
Glossopetalon pungens
© 2010 James M. Andre
Glossopetalon pungens
© 2010 James M. Andre

Glyceria grandis    American mannagrass
rare native
Perennial grass (rhizomatous)

POACEAE

Glyceria grandis
© 2004 Dean Wm. Taylor
Glyceria grandis
© Ed Morris
Glyceria grandis
© Matt Lavin

Goodmania luteola    Golden goodmania,  Yellow spinecape
rare native
Annual herb

POLYGONACEAE

Goodmania luteola
© 2007 Steve Matson
Goodmania luteola
© 2007 Steve Matson
Goodmania luteola
© 2017 Steve Matson

Graphis saxorum    Baja rock lichen
rare native
Lichen

GRAPHIDACEAE


Gratiola heterosepala    Boggs lake hedge hyssop
rare native
Annual herb

PLANTAGINACEAE

Gratiola heterosepala
© 2004 Carol W. Witham
Gratiola heterosepala
© 2004 Carol W. Witham
Gratiola heterosepala
© 2010 Doug Wirtz

Greeneocharis circumscissa var. rosulata    rosette cushion cryptantha
rare native
Annual herb

BORAGINACEAE

Greeneocharis circumscissa var. rosulata
© 2011 James M. Andre
Greeneocharis circumscissa var. rosulata
© 2019 Mary Merriman
Greeneocharis circumscissa var. rosulata
© 2011 James M. Andre

Grimmia torenii    Toren's grimmia
rare native
Moss

GRIMMIACEAE

Grimmia torenii
© 2020 Belinda Lo
Grimmia torenii
© 2020 Belinda Lo
Grimmia torenii
© 2018 Scot Loring

Grimmia vaginulata    Vaginulate grimmia
rare native
Moss

GRIMMIACEAE


Grindelia fraxinipratensis    Ash meadows gumplant
rare native
Perennial herb

ASTERACEAE

Grindelia fraxinipratensis
© 2010 James M. Andre
Grindelia fraxinipratensis
© 2010 James M. Andre
Grindelia fraxinipratensis
© 2010 James M. Andre

Grindelia hallii    San diego gumplant
rare native
Perennial herb

ASTERACEAE

Grindelia hallii
© 2024 Mike Russler
Grindelia hallii
© 2024 Mike Russler
Grindelia hallii
© 2014 Keir Morse

Grindelia hirsutula var. maritima    Coastal gumweed,  San francisco gum plant,  San francisco gumplant
rare native
Perennial herb

ASTERACEAE

Grindelia hirsutula var. maritima
© 2016 Neal Kramer
Grindelia hirsutula var. maritima
© 2009 Neal Kramer
Grindelia hirsutula var. maritima
© 2009 Neal Kramer

Grusonia parishii    Matted cholla
rare native
Shrub (stem succulent)

CACTACEAE

Grusonia parishii
© 2023 Lynn Sweet
Grusonia parishii
© 2015 Steve McWilliams
Grusonia parishii
© 2020 Jenna Moore

Grusonia pulchella    Sagebrush cholla
rare native
Shrub (stem succulent)

CACTACEAE

Grusonia pulchella
© 2010 Neal Kramer
Grusonia pulchella
© 2010 Neal Kramer
Grusonia pulchella
© 2010 Neal Kramer

Hackelia amethystina    Amethyst stickseed
rare native
Perennial herb

BORAGINACEAE

Hackelia amethystina
© 2020 R.A. Chasey
Hackelia amethystina
© 2003 Yulan Tong
Hackelia amethystina
© 2020 R.A. Chasey

Hackelia brevicula    Poison canyon stickseed
rare native
Perennial herb

BORAGINACEAE

Hackelia brevicula
© 2015 Steve Matson
Hackelia brevicula
© 2015 Steve Matson
Hackelia brevicula
© 2015 Steve Matson

Hackelia cusickii    Cusick stickweed,  Cusick's stickseed
rare native
Perennial herb

BORAGINACEAE

Hackelia cusickii
© 2004 Robert E. Preston, Ph.D.
Hackelia cusickii
© 2011 Dean Wm. Taylor, Ph.D.

Hackelia sharsmithii    Sharsmith's stickseed
rare native
Perennial herb

BORAGINACEAE

Hackelia sharsmithii
© 2017 Steve Matson
Hackelia sharsmithii
© 2017 Steve Matson
Hackelia sharsmithii
© 2017 Steve Matson

Haplodontium tehamense    Lassen peak copper moss
rare native
Moss

MNIACEAE


Harmonia doris-nilesiae    Niles's harmonia
rare native
Annual herb

ASTERACEAE

Harmonia doris-nilesiae
© 2019 Steve Matson
Harmonia doris-nilesiae
© 2019 Steve Matson
Harmonia doris-nilesiae
© 2019 Steve Matson

Harmonia guggolziorum    Guggolz's harmonia
rare native
Annual herb

ASTERACEAE

Harmonia guggolziorum
© 2019 Steve Matson
Harmonia guggolziorum
© 2019 Steve Matson
Harmonia guggolziorum
© 2019 Steve Matson

Harmonia hallii    Hall's harmonia
rare native
Annual herb

ASTERACEAE

Harmonia hallii
© 2020 Matt Berger
Harmonia hallii
© 2020 Matt Berger
Harmonia hallii
© 2022 Ryan O'Dell

Harmonia nutans    Nodding harmonia
rare native
Annual herb

ASTERACEAE

Harmonia nutans
© 2017 John Game
Harmonia nutans
© 2018 John Game
Harmonia nutans
© 2020 Tim Miller

Harmonia stebbinsii    Stebbins's harmonia
rare native
Annual herb

ASTERACEAE

Harmonia stebbinsii
© 2019 Steve Matson
Harmonia stebbinsii
© 2019 Steve Matson
Harmonia stebbinsii
© 2019 Steve Matson

Harpagonella palmeri    Palmer's grapplinghook
rare native
Annual herb

BORAGINACEAE

Harpagonella palmeri
© 2019 Ron Vanderhoff
Harpagonella palmeri
© 2019 Ron Vanderhoff
Harpagonella palmeri
© 2019 Ron Vanderhoff

Hazardia cana    Guadalupe hazardia,  Island hazardia,  San clemente island hazardia
rare native
Shrub

ASTERACEAE

Hazardia cana
© 2009 Zoya Akulova
Hazardia cana
© 2005 Dieter Wilken
Hazardia cana
© 2005 Dieter Wilken

Hazardia detonsa    Island bristleweed,  Island hazardia,  Northern island haplopappus
rare native
Shrub

ASTERACEAE

Hazardia detonsa
© 2014 Steve Matson
Hazardia detonsa
© 2014 Steve Matson
Hazardia detonsa
© 2014 Steve Matson

Hazardia orcuttii    Orcutt's bristleweed,  Orcutt's hazardia
rare native
Shrub

ASTERACEAE

Hazardia orcuttii
© 2011 Keir Morse
Hazardia orcuttii
© 2011 Keir Morse
Hazardia orcuttii
© 2011 Keir Morse

Hecastocleis shockleyi    Shockley's prickleleaf
rare native
Shrub

ASTERACEAE

Hecastocleis shockleyi
© 2010 Steve Matson
Hecastocleis shockleyi
© 2010 Steve Matson
Hecastocleis shockleyi
© 2019 Steve Matson

Hedeoma drummondii    Drummond's false pennyroyal
rare native
Shrub (stem succulent)

LAMIACEAE

Hedeoma drummondii
© 2009 Lee Dittmann
Hedeoma drummondii
© 2005 James M. Andre
Hedeoma drummondii
© 2016 Wynn Anderson

Hedeoma nana ssp. californica    California false pennyroyal
rare native
Perennial herb

LAMIACEAE

Hedeoma nana ssp. californica
© 2006 Steve Matson
Hedeoma nana ssp. californica
© 2006 Steve Matson
Hedeoma nana ssp. californica
© 2006 Steve Matson

Helianthella castanea    Mt. diablo helianthella
rare native
Perennial herb

ASTERACEAE

Helianthella castanea
© 2025 Ken-ichi Ueda
Helianthella castanea
© 2020 R.A. Chasey
Helianthella castanea
© 2019 David Greenberger

Helianthus exilis    Serpentine sunflower
rare native
Annual herb

ASTERACEAE

Helianthus exilis
© 2019 Amida Verhey
Helianthus exilis
© 2021 Mike Russler
Helianthus exilis
© 2020 Charles Russell

Helianthus inexpectatus    Newhall sunflower
rare native
Perennial herb

ASTERACEAE

Helianthus inexpectatus
© 2024 Devon Christian
Helianthus inexpectatus
© 2024 Devon Christian
Helianthus inexpectatus
© 2024 Devon Christian

Helianthus niveus ssp. tephrodes    Algodones dunes sunflower,  Algodones sunflower
rare native
Perennial herb

ASTERACEAE

Helianthus niveus ssp. tephrodes
© 2024 Mike Russler
Helianthus niveus ssp. tephrodes
© 2024 Mike Russler
Helianthus niveus ssp. tephrodes
© 2020 Linda Pardy

Helianthus nuttallii ssp. parishii    Los angeles sunflower,  Parish's sunflower
rare native
Perennial herb (rhizomatous)

ASTERACEAE


Helianthus winteri    Winter's sunflower
rare native
Shrub

ASTERACEAE

Helianthus winteri
© 2021 Duncan S. Bell
Helianthus winteri
© 2021 Mike Russler
Helianthus winteri
© 2022 Mike Russler

Helodium blandowii    Blandow's helodium moss
rare native
Moss

HELODIACEAE

Helodium blandowii
© 2002 John Game
Helodium blandowii
© 2002 John Game

Hemieva ranunculifolia    Buttercup-leaf suksdorfia
rare native
Perennial herb

SAXIFRAGACEAE

Hemieva ranunculifolia
© 2017 Dana York
Hemieva ranunculifolia
© 2023 Dana York
Hemieva ranunculifolia
© 2017 Dana York

Hemizonia congesta ssp. calyculata    Hayfield tarweed,  Mendocino tarplant
rare native
Annual herb

ASTERACEAE

Hemizonia congesta ssp. calyculata
© 2021 Cynthia Powell
Hemizonia congesta ssp. calyculata
© 2021 Cynthia Powell
Hemizonia congesta ssp. calyculata
© 2021 Cynthia Powell

Hemizonia congesta ssp. congesta    Hayfield tarweed
rare native
Annual herb

ASTERACEAE

Hemizonia congesta ssp. congesta
© 2021 R.A. Chasey
Hemizonia congesta ssp. congesta
© 2021 R.A. Chasey
Hemizonia congesta ssp. congesta
© 2022 Hunter Breck

Hemizonia congesta ssp. tracyi    Hayfield tarweed,  Tracy's tarplant
rare native
Annual herb

ASTERACEAE

Hemizonia congesta ssp. tracyi
© 2016 Steve Matson
Hemizonia congesta ssp. tracyi
© 2016 Steve Matson
Hemizonia congesta ssp. tracyi
© 2016 Steve Matson

Herissantia crispa    Bladdermallow,  Curly herissantia
rare native
Annual, Perennial herb

MALVACEAE

Herissantia crispa
© 2012 Chris Trask
Herissantia crispa
© 2004 Debra Valov

Hesperevax caulescens    Dwarf dwarf cudweed,  Hogwallow starfish
rare native
Annual herb

ASTERACEAE

Hesperevax caulescens
© 2018 John Dittes
Hesperevax caulescens
© 2020 Phil Johnson
Hesperevax caulescens
© 2022 Steve Matson

Hesperevax sparsiflora var. brevifolia    Short leaved evax,  Shortleaf dwarf cudweed
rare native
Annual herb

ASTERACEAE

Hesperevax sparsiflora var. brevifolia
© 2021 R.A. Chasey
Hesperevax sparsiflora var. brevifolia
© 2021 R.A. Chasey
Hesperevax sparsiflora var. brevifolia
© 2021 Vernon Smith

Hesperidanthus jaegeri    Jaeger's hesperidanthus
rare native
Perennial herb

BRASSICACEAE

Hesperidanthus jaegeri
© 2011 Steve Matson
Hesperidanthus jaegeri
© 2011 Steve Matson
Hesperidanthus jaegeri
© 2011 Steve Matson

rare native
Tree

CUPRESSACEAE

Hesperocyparis abramsiana var. abramsiana
© 2021 R.A. Chasey
Hesperocyparis abramsiana var. abramsiana
© 2021 R.A. Chasey
Hesperocyparis abramsiana var. abramsiana
© 2019 Susan McDougall

rare native
Tree

CUPRESSACEAE

Hesperocyparis abramsiana var. butanoensis
© 2022 Michael Heine
Hesperocyparis abramsiana var. butanoensis
© 2011 Joey Malone
Hesperocyparis abramsiana var. butanoensis
© 2011 Joey Malone

Hesperocyparis bakeri    Baker's cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis bakeri
© 2014 David popp
Hesperocyparis bakeri
© 2014 David popp
Hesperocyparis bakeri
© 2007 Michael Kauffmann

Hesperocyparis forbesii    Tecate cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis forbesii
© 2022 Ron Vanderhoff
Hesperocyparis forbesii
© 2021 Ron Vanderhoff
Hesperocyparis forbesii
© 2020 Aaron Echols

Hesperocyparis goveniana    Gowen cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis goveniana
© 2019 Susan McDougall
Hesperocyparis goveniana
© 2023 Aidan Marshall
Hesperocyparis goveniana
© 2019 Susan McDougall

Hesperocyparis nevadensis    Piute cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis nevadensis
© 2016 Richard Spjut
Hesperocyparis nevadensis
© 2012 Joey Malone
Hesperocyparis nevadensis
© 2008 Matt Teel

Hesperocyparis pygmaea    Pygmy cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis pygmaea
© 2024 Maisie Borg
Hesperocyparis pygmaea
© 2024 Maisie Borg
Hesperocyparis pygmaea
© 2019 Susan McDougall

Hesperocyparis stephensonii    Cuyamaca cypress
rare native
Tree

CUPRESSACEAE

Hesperocyparis stephensonii
© 2022 Ron Vanderhoff
Hesperocyparis stephensonii
© 2022 Ron Vanderhoff
Hesperocyparis stephensonii
© 2022 Ron Vanderhoff

Hesperolinon adenophyllum    Glandular dwarf flax,  Glandular western flax
rare native
Annual herb

LINACEAE

Hesperolinon adenophyllum
© 2024 Chloe and Trevor Van Loon
Hesperolinon adenophyllum
© 2024 Chloe and Trevor Van Loon
Hesperolinon adenophyllum
© 2022 Ryan O'Dell

Hesperolinon bicarpellatum    Two carpellate western flax,  Twocarpel dwarf flax
rare native
Annual herb

LINACEAE

Hesperolinon bicarpellatum
© 2017 John Game
Hesperolinon bicarpellatum
© 2021 R.A. Chasey
Hesperolinon bicarpellatum
© 2017 Adam Chasey

Hesperolinon breweri    Brewer's dwarf flax,  Brewer's western flax
rare native
Annual herb

LINACEAE

Hesperolinon breweri
© 2021 R.A. Chasey
Hesperolinon breweri
© 2022 R.A. Chasey
Hesperolinon breweri
© 2022 R.A. Chasey

Hesperolinon congestum    Marin dwarf flax,  Marin western flax
rare native
Annual herb

LINACEAE

Hesperolinon congestum
© 2019 David Greenberger
Hesperolinon congestum
© 2021 Charles Russell
Hesperolinon congestum
© 2019 Hunter Breck

Hesperolinon didymocarpum    Lake county dwarf flax,  Lake county western flax
rare native
Annual herb

LINACEAE

Hesperolinon didymocarpum
© 2024 Chloe and Trevor Van Loon
Hesperolinon didymocarpum
© 2024 Chloe and Trevor Van Loon
Hesperolinon didymocarpum
© 2024 Chloe and Trevor Van Loon

Hesperolinon drymarioides    Drymaria like western flax,  Drymary dwarf flax
rare native
Annual herb

LINACEAE

Hesperolinon drymarioides
© Niall McCarten and CNPS
Hesperolinon drymarioides
© 2013 Jake Ruygt
Hesperolinon drymarioides
© Niall McCarten and CNPS

Hesperolinon sharsmithiae    Sharsmith's western flax
rare native
Annual herb

LINACEAE

Hesperolinon sharsmithiae
© 2022 R.A. Chasey
Hesperolinon sharsmithiae
© 2022 R.A. Chasey
Hesperolinon sharsmithiae
© 2021 R.A. Chasey

Hesperolinon tehamense    Paskenta grade dwarf flax,  Tehama county western flax
rare native
Annual herb

LINACEAE

Hesperolinon tehamense
© 2024 Chloe and Trevor Van Loon
Hesperolinon tehamense
© 2024 Chloe and Trevor Van Loon
Hesperolinon tehamense
© 2024 Chloe and Trevor Van Loon

Heteranthera dubia    Grassleaf mudplantain,  Water star grass
rare native
Perennial herb

PONTEDERIACEAE

Heteranthera dubia
© 2008 Louis-M. Landry
Heteranthera dubia
© 2008 Louis-M. Landry

Heterotheca monarchensis    Sequoia false goldenaster
rare native
Perennial herb

ASTERACEAE

Heterotheca monarchensis
© 1996 Dana York
Heterotheca monarchensis
© 1996 Dana York
Heterotheca monarchensis
© 1996 Dana York

Heterotheca sessiliflora ssp. sessiliflora    Sessileflower false goldenaster
rare native
Perennial herb

ASTERACEAE

Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler
Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler
Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler

Heterotheca shevockii    Shevock's golden aster
rare native
Perennial herb

ASTERACEAE

Heterotheca shevockii
© 2021 Mike Russler
Heterotheca shevockii
© 2021 Mike Russler
Heterotheca shevockii
© 2021 Mike Russler

Heuchera abramsii    Abrams's alumroot,  San gabriel alumroot
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera abramsii
© 2005 Charles E. Jones

Heuchera brevistaminea    Laguna mountain alumroot,  Mt. laguna alumroot
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera brevistaminea
© 2021 Grigory Heaton
Heuchera brevistaminea
© 2019 Susan McDougall
Heuchera brevistaminea
© 2024 Mike Russler

Heuchera caespitosa    Urn-flowered alumroot
rare native
Perennial herb

SAXIFRAGACEAE

Heuchera caespitosa
© 2019 Aaron Echols
Heuchera caespitosa
© 2019 Diane Etchison
Heuchera caespitosa
© 2019 Diane Etchison

Heuchera hirsutissima    Shaggy haired alumroot,  Shaggyhair alumroot
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera hirsutissima
© 2009 Thomas Stoughton
Heuchera hirsutissima
© 2009 Thomas Stoughton
Heuchera hirsutissima
© 2015 Keir Morse

Heuchera maxima    Island alum root,  Island alumroot,  Jill of the rocks
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera maxima
© 2014 Steve Matson
Heuchera maxima
© 2014 Steve Matson
Heuchera maxima
© 2014 Steve Matson

Heuchera parishii    Mill creek alumroot,  Parish's alumroot
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera parishii
© 2012 Keir Morse
Heuchera parishii
© 2012 Keir Morse
Heuchera parishii
© 2012 Keir Morse

Heuchera rubescens var. versicolor    Pink alumroot,  San diego county alumroot
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Heuchera rubescens var. versicolor
© 2013 Richard Spellenberg
Heuchera rubescens var. versicolor
© 2013 Richard Spellenberg

Hibiscus lasiocarpos var. occidentalis    Woolly rose-mallow
rare native
Perennial herb

MALVACEAE

Hibiscus lasiocarpos var. occidentalis
© 2024 Charles Russell
Hibiscus lasiocarpos var. occidentalis
© 2022 Morgan Stickrod
Hibiscus lasiocarpos var. occidentalis
© 2024 R.A. Chasey

Hoita strobilina    Loma prieta psoralea
rare native
Perennial herb

FABACEAE

Hoita strobilina
© 2020 Stacie Wolny
Hoita strobilina
© 2023 R.A. Chasey
Hoita strobilina
© 2022 John Holback

Holmgrenanthe petrophila    Rocklady
rare native
Perennial herb

PLANTAGINACEAE

Holmgrenanthe petrophila
© 2020 Matt Berger
Holmgrenanthe petrophila
© 2019 John Game
Holmgrenanthe petrophila
© 2020 Matt Berger

Holocarpha macradenia    Santa cruz tarplant
rare native
Annual herb

ASTERACEAE

Holocarpha macradenia
© 2019 Denise Wight
Holocarpha macradenia
© 2019 Denise Wight
Holocarpha macradenia
© 2019 Michele Hammond

Holocarpha virgata ssp. elongata    Graceful tarplant,  Wand tarbush
rare native
Annual herb

ASTERACEAE

Holocarpha virgata ssp. elongata
© 2020 Mary Wloch
Holocarpha virgata ssp. elongata
© 2023 Ron Vanderhoff
Holocarpha virgata ssp. elongata
© 2021 Ron Vanderhoff

Hordeum intercedens    Bobtail barley,  Little barley,  Vernal barley
rare native
Annual grass

POACEAE

Hordeum intercedens
© 2006 Steve Matson
Hordeum intercedens
© 2021 Sameer Saroa
Hordeum intercedens
© 2021 Sameer Saroa

Horkelia bolanderi    Bolander's horkelia,  Border horkelia
rare native
Perennial herb

ROSACEAE

Horkelia bolanderi
© 2015 Tim Miller
Horkelia bolanderi
© 2019 Steve Matson
Horkelia bolanderi
© 2019 Steve Matson

Horkelia congesta var. nemorosa    Josephine horkelia
rare native
Perennial herb

ROSACEAE

Horkelia congesta var. nemorosa
© 2015 John Doyen
Horkelia congesta var. nemorosa
© 2011 Doreen L. Smith
Horkelia congesta var. nemorosa
© 2011 Doreen L. Smith

Horkelia cuneata var. puberula    Mesa horkelia
rare native
Perennial herb

ROSACEAE

Horkelia cuneata var. puberula
© 2023 Ron Vanderhoff
Horkelia cuneata var. puberula
© 2024 Mike Russler
Horkelia cuneata var. puberula
© 2023 Ron Vanderhoff

Horkelia cuneata var. sericea    Kellogg's horkelia
rare native
Perennial herb

ROSACEAE

Horkelia cuneata var. sericea
© 2021 Cara Wilcox
Horkelia cuneata var. sericea
© 2022 Irene Rosen
Horkelia cuneata var. sericea
© 2021 Cara Wilcox

Horkelia daucifolia var. indicta    Jepson's horkelia
rare native
Perennial herb

ROSACEAE

Horkelia daucifolia var. indicta
© 2011 Steve Matson
Horkelia daucifolia var. indicta
© 2011 Steve Matson
Horkelia daucifolia var. indicta
© 2011 Steve Matson

Horkelia hendersonii    Henderson's horkelia
rare native
Perennial herb

ROSACEAE

Horkelia hendersonii
© 2024 Chloe and Trevor Van Loon
Horkelia hendersonii
© 2019 Amy Patten
Horkelia hendersonii
© 2024 Chloe and Trevor Van Loon

Horkelia hispidula    White mountain horkelia,  White mtns. horkelia
rare native
Perennial herb

ROSACEAE

Horkelia hispidula
© 2024 Erin Bergman
Horkelia hispidula
© 2024 Mike Russler
Horkelia hispidula
© 2012 Steve Matson

Horkelia marinensis    Point reyes horkelia
rare native
Perennial herb

ROSACEAE

Horkelia marinensis
© 2021 Vernon Smith
Horkelia marinensis
© 2013 James Gonsman
Horkelia marinensis
© 2023 Ryan O'Dell

Horkelia parryi    Parry horkelia,  Parry's horkelia
rare native
Perennial herb

ROSACEAE

Horkelia parryi
© 2019 Matt Berger
Horkelia parryi
© 2019 Matt Berger
Horkelia parryi
© 2019 Matt Berger

Horkelia sericata    Howell's horkelia,  Silky horkelia
rare native
Perennial herb

ROSACEAE

Horkelia sericata
© 2024 Ryan O'Dell
Horkelia sericata
© 2014 John Doyen
Horkelia sericata
© 2010 Sean B. Smith

Horkelia tenuiloba    Santa rosa horkelia,  Thin lobed horkelia
rare native
Perennial herb

ROSACEAE

Horkelia tenuiloba
© 2019 Eliezer Margolis
Horkelia tenuiloba
© 2019 Cynthia Powell
Horkelia tenuiloba
© 2018 Hunter Breck

Horkelia truncata    Ramona horkelia
rare native
Perennial herb

ROSACEAE

Horkelia truncata
© 2014 Ron Vanderhoff
Horkelia truncata
© 2016 Ron Vanderhoff
Horkelia truncata
© 2014 Ron Vanderhoff

Horkelia tularensis    Kern plateau horkelia,  Tulare cinquefoil
rare native
Perennial herb

ROSACEAE

Horkelia tularensis
© 2022 Eric Koberle
Horkelia tularensis
© 2022 Eric Koberle
Horkelia tularensis
© 2022 Eric Koberle

Horkelia wilderae    Barton flats horkelia
rare native
Perennial herb

ROSACEAE

Horkelia wilderae
© 2022 James Maley
Horkelia wilderae
© 2019 Manzanita Dictionary
Horkelia wilderae
© 2022 James Maley

Horkelia yadonii    Santa lucia horkelia
rare native
Perennial herb (rhizomatous)

ROSACEAE

Horkelia yadonii
© 2022 Ryan O'Dell
Horkelia yadonii
© 2023 Ryan O'Dell
Horkelia yadonii
© 2023 Ryan O'Dell

Horsfordia alata    Pink velvet mallow,  Pink velvetmallow
rare native
Shrub

MALVACEAE

Horsfordia alata
© 2004 Debra Valov
Horsfordia alata
© 2017 Fred Melgert / Carla Hoegen

Horsfordia newberryi    Newberry's velvet mallow,  Newberry's velvetmallow
rare native
Perennial herb

MALVACEAE

Horsfordia newberryi
© 2024 Mike Russler
Horsfordia newberryi
© 2024 Mike Russler
Horsfordia newberryi
© 2020 David Greenberger

Hosackia crassifolia var. otayensis    Otay mountain hosackia
rare native
Perennial herb

FABACEAE

Hosackia crassifolia var. otayensis
© 2022 Becky Escalante
Hosackia crassifolia var. otayensis
© 2022 Becky Escalante
Hosackia crassifolia var. otayensis
© 2022 Becky Escalante

Hosackia gracilis    Harlequin lotus
rare native
Perennial herb

FABACEAE

Hosackia gracilis
© 2023 Steve Conger
Hosackia gracilis
© 2023 Mary Ann Machi
Hosackia gracilis
© 2023 Steve Conger

Hosackia oblongifolia var. cuprea    Copper-flowered bird's-foot trefoil
rare native
Perennial herb

FABACEAE

Hosackia oblongifolia var. cuprea
© 2022 Mike Russler
Hosackia oblongifolia var. cuprea
© 2024 Ryan Donnelly
Hosackia oblongifolia var. cuprea
© 2022 Mike Russler

Hosackia yollabolliensis    Yolla bolly mtns. bird's-foot trefoil
rare native
Perennial herb

FABACEAE

Hosackia yollabolliensis
© 2013 Shasta-Trinity National Forest
Hosackia yollabolliensis
© 1902 Chloe and Trevor Van Loon
Hosackia yollabolliensis
© 1902 Chloe and Trevor Van Loon

Howellanthus dalesianus    Scott mountain phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Howellanthus dalesianus
© 2011 Steve Matson
Howellanthus dalesianus
© 2011 Steve Matson
Howellanthus dalesianus
© 2011 Steve Matson

Howellia aquatilis    Water howellia
rare native
Annual herb (aquatic)

CAMPANULACEAE

Howellia aquatilis
© 2011 Gerald Carr
Howellia aquatilis
© 2011 Gerald Carr
Howellia aquatilis
© 2011 Gerald Carr

Hulsea brevifolia    Short leaved hulsea,  Shortleaf alpinegold
rare native
Perennial herb

ASTERACEAE

Hulsea brevifolia
© 2022 Mike Russler
Hulsea brevifolia
© 2022 Jacob Smith
Hulsea brevifolia
© 2022 Mike Russler

Hulsea californica    San diego alpinegold,  San diego sunflower
rare native
Perennial herb

ASTERACEAE

Hulsea californica
© 2019 Matt Berger
Hulsea californica
© 2019 Matt Berger
Hulsea californica
© 2019 Matt Berger

Hulsea mexicana    Mexican alpinegold,  Mexican hulsea
rare native
Annual, Perennial herb

ASTERACEAE

Hulsea mexicana
© 2018 Aaron Schusteff
Hulsea mexicana
© 2018 Aaron Schusteff

Hulsea nana    Dwarf alpinegold,  Dwarf hulsea
rare native
Perennial herb

ASTERACEAE

Hulsea nana
© 2011 Steve Matson
Hulsea nana
© 2011 Steve Matson
Hulsea nana
© 2011 Steve Matson

Hulsea vestita ssp. callicarpha    Beautiful hulsea,  Pumice alpinegold
rare native
Perennial herb

ASTERACEAE

Hulsea vestita ssp. callicarpha
© 2019 Matt Berger
Hulsea vestita ssp. callicarpha
© 2019 Matt Berger
Hulsea vestita ssp. callicarpha
© 2019 Matt Berger

Hulsea vestita ssp. gabrielensis    Pumice alpinegold,  San gabriel mtns. sunflower
rare native
Perennial herb

ASTERACEAE

Hulsea vestita ssp. gabrielensis
© 2024 Eric Koberle
Hulsea vestita ssp. gabrielensis
© 2020 Matt Berger
Hulsea vestita ssp. gabrielensis
© 2019 Matt Berger

Hulsea vestita ssp. inyoensis    Inyo hulsea,  Pumice alpinegold
rare native
Perennial herb

ASTERACEAE

Hulsea vestita ssp. inyoensis
© 2022 Dana York
Hulsea vestita ssp. inyoensis
© 2023 Bob Steele
Hulsea vestita ssp. inyoensis
© 2023 Bob Steele

Hulsea vestita ssp. parryi    Parry's alpinegold,  Parry's hulsea,  Parry's sunflower
rare native
Perennial herb

ASTERACEAE

Hulsea vestita ssp. parryi
© 2021 Aaron Echols
Hulsea vestita ssp. parryi
© 2019 Matt Berger
Hulsea vestita ssp. parryi
© 2019 Matt Berger

Hulsea vestita ssp. pygmaea    Pygmy alpinegold,  Pygmy hulsea
rare native
Perennial herb

ASTERACEAE

Hulsea vestita ssp. pygmaea
© 2010 John Game
Hulsea vestita ssp. pygmaea
© 2010 John Game
Hulsea vestita ssp. pygmaea
© 2008 Thomas Stoughton

Hymenopappus filifolius var. eriopodus    Fineleaf hymenopappus,  Hairy podded columbia cutleaf
rare native
Perennial herb

ASTERACEAE

Hymenopappus filifolius var. eriopodus
© 2008 Jason E. Willand
Hymenopappus filifolius var. eriopodus
© 2006 Trent M. Draper
Hymenopappus filifolius var. eriopodus
© 2020 Matt C. Berger

Hymenopappus filifolius var. nanus    Dwarf columbia cutleaf,  Fineleaf hymenopappus
rare native
Perennial herb

ASTERACEAE

Hymenopappus filifolius var. nanus
© 2011 Steve Matson
Hymenopappus filifolius var. nanus
© 2010 Steve Matson
Hymenopappus filifolius var. nanus
© 2011 Steve Matson

Hymenothrix wrightii    Wright's thimblehead
rare native
Perennial herb

ASTERACEAE

Hymenothrix wrightii
© 2014 Keir Morse
Hymenothrix wrightii
© 2014 Keir Morse
Hymenothrix wrightii
© 2014 Keir Morse

Hymenoxys lemmonii    Lemmon's goldflower,  Lemmon's rubberweed
rare native
Perennial herb

ASTERACEAE

Hymenoxys lemmonii
© 2006 Steve Matson
Hymenoxys lemmonii
© 2016 John Doyen
Hymenoxys lemmonii
© 2006 Steve Matson

Hymenoxys odorata    Bitter rubberweed,  Fragrant bitter weed
rare native
Annual herb

ASTERACEAE

Hymenoxys odorata
© 2015 Richard Spellenberg
Hymenoxys odorata
© 2015 Richard Spellenberg
Hymenoxys odorata
© 2015 Richard Spellenberg

Hypogymnia schizidiata    Island rock lichen
rare native
Lichen

PARMELIACEAE

Hypogymnia schizidiata
© 2025 Max Benningfield
Hypogymnia schizidiata
© Cricket Raspet
Hypogymnia schizidiata
© 2025 Max Benningfield

Iliamna bakeri    Baker's globe mallow,  Baker's wild hollyhock
rare native
Perennial herb

MALVACEAE

Iliamna bakeri
© 2020 Steve Laymon
Iliamna bakeri
© 2019 Matt Berger
Iliamna bakeri
© 2023 Ryan O'Dell

Iliamna latibracteata    California globe mallow,  California wild hollyhock
rare native
Perennial herb

MALVACEAE

Iliamna latibracteata
© 2019 Keir Morse
Iliamna latibracteata
© 2023 Keir Morse
Iliamna latibracteata
© 2012 Julie A. Kierstead

Imperata brevifolia    California satintail
rare native
Perennial grass

POACEAE

Imperata brevifolia
© 2008 Steve Matson
Imperata brevifolia
© 2008 Steve Matson
Imperata brevifolia
© 2008 Steve Matson

Ipomopsis effusa    Baja california ipomopsis
rare native
Annual herb

POLEMONIACEAE

Ipomopsis effusa
© © 2014 Aaron Schusteff
Ipomopsis effusa
© 2014 Aaron Schusteff

Ipomopsis tenuifolia    Slender leaved ipomopsis,  Slenderleaf skyrocket
rare native
Perennial herb

POLEMONIACEAE

Ipomopsis tenuifolia
© 2023 Matt Berger
Ipomopsis tenuifolia
© 2023 Caitlin Kreutz
Ipomopsis tenuifolia
© 2023 Matt Berger

Iris bracteata    Siskiyou iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris bracteata
© 2023 Dana York
Iris bracteata
© 2023 Dana York
Iris bracteata
© 2023 Dana York

Iris hartwegii ssp. columbiana    Rainbow iris,  Tuolumne iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE


Iris innominata    Del norte county iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris innominata
© 2010 Gerald Carr
Iris innominata
© 2010 Gerald Carr
Iris innominata
© 2010 Gerald Carr

Iris longipetala    Central coast iris,  Coast iris
rare native
Perennial herb

IRIDACEAE

Iris longipetala
© 2019 Julia King
Iris longipetala
© 2017 Steve Matson
Iris longipetala
© 2017 Steve Matson

Iris munzii    Munz's iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris munzii
© 2020 Joe Engelbrecht
Iris munzii
© 2020 Joe Engelbrecht
Iris munzii
© 2013 Debra L. Cook

Iris tenax ssp. klamathensis    Klamath iris,  Orleans iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris tenax ssp. klamathensis
© 2023 Dana York
Iris tenax ssp. klamathensis
© 2023 Dana York
Iris tenax ssp. klamathensis
© 2017 Dana York

Iris thompsonii    Thompson's iris
rare native
Perennial herb

IRIDACEAE

Iris thompsonii
© 2017 Steve Matson
Iris thompsonii
© 2017 Steve Matson
Iris thompsonii
© 2017 Steve Matson

Isocoma arguta    Carquinez goldenbush,  Carquinez isocoma
rare native
Shrub

ASTERACEAE

Isocoma arguta
© 2022 R.A. Chasey
Isocoma arguta
© 2022 R.A. Chasey
Isocoma arguta
© 2022 R.A. Chasey

Isocoma menziesii var. decumbens    Decumbent goldenbush,  Menzies' goldenbush
rare native
Shrub

ASTERACEAE

Isocoma menziesii var. decumbens
© 2017 Neil Uelman
Isocoma menziesii var. decumbens
© 2017 Neil Uelman
Isocoma menziesii var. decumbens
© 2017 Neil Uelman

Isocoma menziesii var. diabolica    Menzies' goldenbush,  Satan's goldenbush
rare native
Shrub

ASTERACEAE

Isocoma menziesii var. diabolica
© 2021 Mike Russler
Isocoma menziesii var. diabolica
© 2021 Mike Russler
Isocoma menziesii var. diabolica
© 2019 R.A. Chasey

Iva hayesiana    San diego marsh elder,  San diego povertyweed
rare native
Perennial herb

ASTERACEAE

Iva hayesiana
© 2015 John Rusk
Iva hayesiana
© 2012 Ron Vanderhoff
Iva hayesiana
© 2022 Ron Vanderhoff

Ivesia aperta var. aperta    Sierra valley ivesia,  Sierra valley mousetail
rare native
Perennial herb

ROSACEAE

Ivesia aperta var. aperta
© 2008 Steve Matson
Ivesia aperta var. aperta
© 2024 Donald Burk
Ivesia aperta var. aperta
© 2019 David Greenberger

Ivesia aperta var. canina    Dog valley ivesia,  Sierra valley mousetail
rare native
Perennial herb

ROSACEAE

Ivesia aperta var. canina
© 2005 Steve Matson
Ivesia aperta var. canina
© 2005 Steve Matson
Ivesia aperta var. canina
© 2005 Steve Matson

Ivesia argyrocoma var. argyrocoma    Silver-haired ivesia
rare native
Perennial herb

ROSACEAE

Ivesia argyrocoma var. argyrocoma
© 2006 Steve Matson
Ivesia argyrocoma var. argyrocoma
© 2019 Matt Berger
Ivesia argyrocoma var. argyrocoma
© 2019 Matt Berger

Ivesia arizonica var. arizonica    Arizona whitefeather,  Yellow ivesia
rare native
Perennial herb

ROSACEAE

Ivesia arizonica var. arizonica
© 2023 Chloe and Trevor Van Loon
Ivesia arizonica var. arizonica
© 2023 Chloe and Trevor Van Loon
Ivesia arizonica var. arizonica
© 2023 Chloe and Trevor Van Loon

Ivesia baileyi var. baileyi    Bailey's ivesia
rare native
Perennial herb

ROSACEAE

Ivesia baileyi var. baileyi
© 1990 Dean Wm. Taylor

Ivesia baileyi var. beneolens    Bailey's ivesia,  Owyhee ivesia
rare native
Perennial herb

ROSACEAE

Ivesia baileyi var. beneolens
© 2016 Gerald Carr
Ivesia baileyi var. beneolens
© 2016 Gerald Carr
Ivesia baileyi var. beneolens
© 2016 Gerald Carr

Ivesia callida    Tahquitz ivesia,  Tahquitz mousetail
rare native
Perennial herb

ROSACEAE

Ivesia callida
© 2005 US Forest Service
Ivesia callida
© 2008 Jordan Zylstra

Ivesia campestris    Field ivesia,  Field mousetail
rare native
Perennial herb

ROSACEAE

Ivesia campestris
© 2018 Steve Matson
Ivesia campestris
© 2018 Steve Matson
Ivesia campestris
© 2018 Steve Matson

Ivesia jaegeri    Jaeger's ivesia,  Jaeger's mousetail
rare native
Perennial herb

ROSACEAE

Ivesia jaegeri
© 2020 Matt Berger
Ivesia jaegeri
© 2020 Matt Berger
Ivesia jaegeri
© 2020 Matt Berger

Ivesia kingii var. kingii    Alkali ivesia
rare native
Perennial herb

ROSACEAE

Ivesia kingii var. kingii
© 2008 Steve Matson
Ivesia kingii var. kingii
© 2008 Steve Matson
Ivesia kingii var. kingii
© 2005 Steve Matson

Ivesia longibracteata    Castle crags ivesia,  Longbract mousetail
rare native
Perennial herb

ROSACEAE

Ivesia longibracteata
© 2018 Matt Berger
Ivesia longibracteata
© 2011 Shannon Henke
Ivesia longibracteata
© 2011 Shannon Henke

Ivesia paniculata    Ash creek ivesia,  Ash creek mousetail
rare native
Perennial herb

ROSACEAE

Ivesia paniculata
© 2007 F. Gauna
Ivesia paniculata
© 2007 F. Gauna
Ivesia paniculata
© 2007 F. Gauna

Ivesia patellifera    Kingston mountain mousetail,  Kingston mtns. ivesia
rare native
Perennial herb

ROSACEAE

Ivesia patellifera
© 2020 John Marquis
Ivesia patellifera
© 2017 Duncan S. Bell
Ivesia patellifera
© 2017 Duncan S. Bell

Ivesia pickeringii    Pickering's ivesia,  Silky mousetail
rare native
Perennial herb

ROSACEAE

Ivesia pickeringii
© 2021 Julie A. Kierstead
Ivesia pickeringii
© 2021 Julie A. Kierstead
Ivesia pickeringii
© 2021 Julie A. Kierstead

Ivesia sericoleuca    Plumas ivesia,  Plumas mousetail
rare native
Perennial herb

ROSACEAE

Ivesia sericoleuca
© 2021 Bob Sweatt
Ivesia sericoleuca
© 2003 Steve Matson
Ivesia sericoleuca
© 2023 R.A. Chasey

Ivesia unguiculata    Yosemite ivesia,  Yosemite mousetail
rare native
Perennial herb

ROSACEAE

Ivesia unguiculata
© 2021 Mike Russler
Ivesia unguiculata
© 2021 Mike Russler
Ivesia unguiculata
© 2021 Mike Russler

Ivesia webberi    Webber's ivesia,  Wire mousetail
rare native
Perennial herb

ROSACEAE

Ivesia webberi
© 2007 Steve Matson
Ivesia webberi
© 2007 Steve Matson
Ivesia webberi
© 2007 Steve Matson

Jaffueliobryum raui    Rau's jaffueliobryum moss
rare native
Moss

GRIMMIACEAE

Jaffueliobryum raui
© 2018 Scot Loring
Jaffueliobryum raui
© 2018 Scot Loring
Jaffueliobryum raui
© 2018 Scot Loring

Jaffueliobryum wrightii    Wright's jaffueliobryum moss
rare native
Moss

GRIMMIACEAE

Jaffueliobryum wrightii
© 2023 Chris wagner
Jaffueliobryum wrightii
© 2023 Chris wagner
Jaffueliobryum wrightii
© 2023 Chris wagner

Jamesia americana var. rosea    Fivepetal cliffbush,  Rosy petalled cliffbush
rare native
Shrub

HYDRANGEACEAE

Jamesia americana var. rosea
© 2014 Steve Matson
Jamesia americana var. rosea
© 2014 Steve Matson
Jamesia americana var. rosea
© 2005 Steve Matson

Jensia yosemitana    Yosemite tarplant
rare native
Annual herb

ASTERACEAE

Jensia yosemitana
© 2019 Matt Berger
Jensia yosemitana
© 2019 Matt Berger
Jensia yosemitana
© 2021 Mike Russler

Jepsonia heterandra    Foothill jepsonia
rare native
Perennial herb

SAXIFRAGACEAE

Jepsonia heterandra
© 2012 Lynn Robertson
Jepsonia heterandra
© 2024 Ryan Donnelly
Jepsonia heterandra
© 2014 Belinda Lo

Jepsonia malvifolia    Island jepsonia
rare native
Perennial herb

SAXIFRAGACEAE

Jepsonia malvifolia
© 2022 Joanne Schwartz
Jepsonia malvifolia
© 2006 Doug Fischer
Jepsonia malvifolia
© 2022 Joanne Schwartz

Johanneshowellia puberula    Red creek buckwheat
rare native
Annual herb

POLYGONACEAE

Johanneshowellia puberula
© 2001 Dana York
Johanneshowellia puberula
© © 2011 Dana York

Johnstonella costata    ribbed cryptantha
rare native
Annual herb

BORAGINACEAE

Johnstonella costata
© 2016 Steve Matson
Johnstonella costata
© 2016 Steve Matson
Johnstonella costata
© 2016 Steve Matson

Cryptantha holoptera    winged cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha holoptera
© 2020 Matt Berger
Cryptantha holoptera
© 2020 Matt Berger
Cryptantha holoptera
© 2020 Matt Berger

Johnstonella holoptera    winged cryptantha
rare native
Annual herb

BORAGINACEAE

Johnstonella holoptera
© 2020 Matt Berger
Johnstonella holoptera
© 2020 Matt Berger
Johnstonella holoptera
© 2020 Matt Berger

Juglans californica    Southern black walnut,  Southern california walnut,  Southern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans californica
© 2014 Garth Wadsworth
Juglans californica
© 2022 Aaron Echols
Juglans californica
© 2022 Ron Vanderhoff

Juglans hindsii    Northern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans hindsii
© 2018 Ron Vanderhoff
Juglans hindsii
© 2016 Steve Matson
Juglans hindsii
© 2018 Ron Vanderhoff

Juncus acutus ssp. leopoldii    Leopold's rush,  Southwestern spiny rush,  Wire grass
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus acutus ssp. leopoldii
© 2018 Ron Vanderhoff
Juncus acutus ssp. leopoldii
© 2019 Susan McDougall
Juncus acutus ssp. leopoldii
© 2021 Ron Vanderhoff

Juncus cooperi    Cooper's rush
rare native
Perennial grasslike herb

JUNCACEAE

Juncus cooperi
© 2020 Matt Berger
Juncus cooperi
© 2020 Matt Berger
Juncus cooperi
© 2020 Matt Berger

Juncus digitatus    Finger rush
rare native
Perennial grasslike herb

JUNCACEAE

Juncus digitatus
© 2008 Carol W. Witham
Juncus digitatus
© 2008 Carol W. Witham
Juncus digitatus
© 2011 Christopher Bronny

Juncus dudleyi    Dudley's rush
rare native
Perennial grasslike herb

JUNCACEAE

Juncus dudleyi
© © 2017 Dean Wm. Taylor
Juncus dudleyi
© 2017 Dean Wm. Taylor
Juncus dudleyi
© 2017 Dean Wm. Taylor

Juncus duranii    Duran's rush
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus duranii
© 2017 Keir Morse
Juncus duranii
© 2017 Keir Morse
Juncus duranii
© 2017 Keir Morse

Juncus hemiendytus var. abjectus    Center basin rush,  Herman's dwarf rush
rare native
Annual grasslike herb

JUNCACEAE

Juncus hemiendytus var. abjectus
© 2008 Steve Matson
Juncus hemiendytus var. abjectus
© 2008 Steve Matson
Juncus hemiendytus var. abjectus
© 2008 Steve Matson

Juncus interior    Inland rush
rare native
Perennial grasslike herb

JUNCACEAE

Juncus interior
© 2011 James M. Andre

Juncus leiospermus var. ahartii    Ahart's dwarf rush
rare native
Annual grasslike herb

JUNCACEAE

Juncus leiospermus var. ahartii
© 2023 Justin Chappelle
Juncus leiospermus var. ahartii
© 2023 Justin Chappelle
Juncus leiospermus var. ahartii
© 2023 Justin Chappelle

Juncus leiospermus var. leiospermus    Red bluff dwarf rush
rare native
Annual grasslike herb

JUNCACEAE

Juncus leiospermus var. leiospermus
© 2008 John Dittes
Juncus leiospermus var. leiospermus
© 2024 Chloe and Trevor Van Loon
Juncus leiospermus var. leiospermus
© 2024 Donald Burk

Juncus luciensis    Santa lucia dwarf rush,  Santa lucia rush
rare native
Annual grasslike herb

JUNCACEAE

Juncus luciensis
© 2023 Matt Berger
Juncus luciensis
© 2023 Matt Berger
Juncus luciensis
© 2023 Matt Berger

rare native
Perennial grasslike herb

JUNCACEAE


Juncus nodosus    Knotted rush
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus nodosus
© 2005 James M. Andre
Juncus nodosus
© 2010 Louis-M. Landry

Juncus regelii    Regel's rush
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus regelii
© 2018 Susan McDougall
Juncus regelii
© 2018 Susan McDougall

Juncus supiniformis    Hair leaved rush,  Hairyleaf rush
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus supiniformis
© 2013 Asa Spade
Juncus supiniformis
© 2013 Asa Spade
Juncus supiniformis
© 2013 Asa Spade

Kallstroemia parviflora    Few flowered caltrop,  Warty caltrop
rare native
Annual herb

ZYGOPHYLLACEAE

Kallstroemia parviflora
© 2013 Keir Morse
Kallstroemia parviflora
© 2013 Keir Morse
Kallstroemia parviflora
© 2013 Keir Morse

Kobresia myosuroides    Bellardi bog sedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Kobresia myosuroides
© 2023 Chloe and Trevor Van Loon
Kobresia myosuroides
© 2023 Chloe and Trevor Van Loon
Kobresia myosuroides
© 2023 Chloe and Trevor Van Loon

rare native
Shrub

KOEBERLINIACEAE

Koeberlinia spinosa var. tenuispina
© 2013 Tim Thomas
Koeberlinia spinosa var. tenuispina
© 2011 Dustin Ray
Koeberlinia spinosa var. tenuispina
© 2011 Dustin Ray

Kopsiopsis hookeri    Small groundcone
rare native
Perennial herb

OROBANCHACEAE

Kopsiopsis hookeri
© 2020 Hunter Breck
Kopsiopsis hookeri
© 2022 Michael Heine
Kopsiopsis hookeri
© 2020 Hunter Breck

Ladeania lanceolata    Lance-leaved scurf-pea
rare native
Perennial herb

FABACEAE

Ladeania lanceolata
© 2011 Steve Matson
Ladeania lanceolata
© 2011 Steve Matson
Ladeania lanceolata
© 2011 Steve Matson

Lagophylla diabolensis    Diablo Range hare-leaf
rare native
Annual herb

ASTERACEAE

Lagophylla diabolensis
© 2022 Mike Russler
Lagophylla diabolensis
© 2022 Mike Russler
Lagophylla diabolensis
© 2022 Mike Russler

Lagophylla dichotoma    Forked hareleaf
rare native
Annual herb

ASTERACEAE

Lagophylla dichotoma
© 2010 Chris Winchell
Lagophylla dichotoma
© 2010 Chris Winchell
Lagophylla dichotoma
© 2010 Ryan O'Dell

Lasthenia burkei    Burke's baeria,  Burke's goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia burkei
© 2024 Chloe and Trevor Van Loon
Lasthenia burkei
© 2024 Chloe and Trevor Van Loon
Lasthenia burkei
© 2024 Chloe and Trevor Van Loon

Lasthenia californica ssp. bakeri    Baker's goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia californica ssp. bakeri
© 2016 William Maslach
Lasthenia californica ssp. bakeri
© © 2015 Asa Spade
Lasthenia californica ssp. bakeri
© 2015 Asa Spade

Lasthenia californica ssp. macrantha    Perennial goldfields
rare native
Perennial herb

ASTERACEAE

Lasthenia californica ssp. macrantha
© 2023 Mary Ann Machi
Lasthenia californica ssp. macrantha
© 2022 R.A. Chasey
Lasthenia californica ssp. macrantha
© 2017 David Greenberger

Lasthenia conjugens    Contra costa goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia conjugens
© 2022 Cynthia Powell
Lasthenia conjugens
© 2022 Irene Rosen
Lasthenia conjugens
© 2022 Scott Yarger

Lasthenia ferrisiae    Alkali goldfields,  Ferris' goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia ferrisiae
© 2022 Mary Merriman
Lasthenia ferrisiae
© 2022 Denise Defreese
Lasthenia ferrisiae
© 2023 Ryan O'Dell

Lasthenia glabrata ssp. coulteri    Coulter goldfields,  Coulter's goldfields,  Goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff
Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff
Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff

Lasthenia leptalea    Salinas valley goldfields
rare native
Annual herb

ASTERACEAE


Lathyrus biflorus    Two flowered pea,  Twoflower pea
rare native
Perennial herb

FABACEAE

Lathyrus biflorus
© 2024 Chloe and Trevor Van Loon
Lathyrus biflorus
© 2024 Chloe and Trevor Van Loon
Lathyrus biflorus
© 2024 Chloe and Trevor Van Loon

Lathyrus delnorticus    Del norte pea
rare native
Perennial herb

FABACEAE

Lathyrus delnorticus
© 2020 Kolby Lundgren
Lathyrus delnorticus
© 2022 Tricia Bippus
Lathyrus delnorticus
© 2024 Julie A. Kierstead

Lathyrus glandulosus    Redwood pea,  Sticky pea
rare native
Perennial herb (rhizomatous)

FABACEAE

Lathyrus glandulosus
© 2011 Barrett Jeffery
Lathyrus glandulosus
© 2024 Chloe and Trevor Van Loon
Lathyrus glandulosus
© 2024 Chloe and Trevor Van Loon

Lathyrus hitchcockianus    Bullfrog mountain pea,  Grapevine mtns. pea
rare native
Vine

FABACEAE

Lathyrus hitchcockianus
© 2019 joey malone
Lathyrus hitchcockianus
© 2024 Chloe Novak
Lathyrus hitchcockianus
© 2024 Chloe Novak

Lathyrus japonicus    Beach pea,  Sea pea
rare native
Perennial herb

FABACEAE

Lathyrus japonicus
© 2017 Steve Matson
Lathyrus japonicus
© 2017 Steve Matson
Lathyrus japonicus
© 2017 Steve Matson

Lathyrus jepsonii var. jepsonii    Delta tule pea
rare native
Perennial herb

FABACEAE

Lathyrus jepsonii var. jepsonii
© 2022 Morgan Stickrod
Lathyrus jepsonii var. jepsonii
© 2022 Liz Bittner
Lathyrus jepsonii var. jepsonii
© 2022 Sara Taylor

Lathyrus palustris    Marsh pea
rare native
Perennial herb

FABACEAE

Lathyrus palustris
© 2021 Kipp Pow
Lathyrus palustris
© 2022 Dana York
Lathyrus palustris
© 2021 Kipp Pow

Lathyrus rigidus    Rigid pea,  Stiff pea
rare native
Perennial herb

FABACEAE

Lathyrus rigidus
© 2008 Christopher L. Christie
Lathyrus rigidus
© 2024 Matt Berger
Lathyrus rigidus
© 2024 Matt Berger

Lathyrus splendens    Pride of california
rare native
Perennial herb

FABACEAE

Lathyrus splendens
© 2019 Matt Berger
Lathyrus splendens
© 2019 Matt Berger
Lathyrus splendens
© 2019 Matt Berger

Lathyrus sulphureus var. argillaceus    Dubious pea,  Snub pea
rare native
Perennial herb

FABACEAE

Lathyrus sulphureus var. argillaceus
© 2023 br00ksie

rare native
Shrub

MALVACEAE

Lavatera assurgentiflora ssp. assurgentiflora
© 2018 Ron Vanderhoff

Lavatera assurgentiflora ssp. glabra    Southern island mallow
rare native
Shrub

MALVACEAE

Lavatera assurgentiflora ssp. glabra
© 1993 Dean Wm. Taylor

Layia carnosa    Beach layia,  Beach tidytips
rare native
Annual herb

ASTERACEAE

Layia carnosa
© 2020 David Greenberger
Layia carnosa
© 2019 Scott Yarger
Layia carnosa
© 2016 Steve Matson

Layia discoidea    Rayless layia,  Rayless tidytips
rare native
Annual herb

ASTERACEAE

Layia discoidea
© 2023 Mike Russler
Layia discoidea
© 2023 Mike Russler
Layia discoidea
© 2023 Mike Russler

Layia heterotricha    Pale yellow layia,  Paleyellow tidytips
rare native
Annual herb

ASTERACEAE

Layia heterotricha
© 2021 Mike Russler
Layia heterotricha
© 2024 Bob Steele
Layia heterotricha
© 2021 Mike Russler

Layia jonesii    Jones' tidytips,  Jones's layia
rare native
Annual herb

ASTERACEAE

Layia jonesii
© 2021 Kristen Nelson
Layia jonesii
© 2021 Kristen Nelson
Layia jonesii
© 2011 Chris Winchell

Layia leucopappa    Comanche point layia,  Comanche point tidytips
rare native
Annual herb

ASTERACEAE

Layia leucopappa
© 2016 Steve Matson
Layia leucopappa
© 2016 Steve Matson
Layia leucopappa
© 2016 Steve Matson

Layia munzii    Munz's tidy tips,  Munz's tidytips
rare native
Annual herb

ASTERACEAE

Layia munzii
© 2006 Steve Matson
Layia munzii
© 2006 Steve Matson
Layia munzii
© 2006 Steve Matson

Layia septentrionalis    Colusa layia,  Colusa tidytips
rare native
Annual herb

ASTERACEAE

Layia septentrionalis
© 2023 R.A. Chasey
Layia septentrionalis
© 2023 R.A. Chasey
Layia septentrionalis
© 2023 R.A. Chasey

Legenere limosa    False venus' looking glass,  Legenere
rare native
Annual herb

CAMPANULACEAE

Legenere limosa
© 1902 John Game
Legenere limosa
© 2024 Chloe and Trevor Van Loon
Legenere limosa
© 2019 Ramona Robison

Lepechinia cardiophylla    Heart leaved pitcher sage,  Santa ana pitchersage
rare native
Shrub

LAMIACEAE

Lepechinia cardiophylla
© 2022 Ron Vanderhoff
Lepechinia cardiophylla
© 2019 Ron Vanderhoff
Lepechinia cardiophylla
© 2019 Ron Vanderhoff

Lepechinia fragrans    Fragrant pitcher sage,  Island pitchersage
rare native
Shrub

LAMIACEAE

Lepechinia fragrans
© 2023 Ron Vanderhoff
Lepechinia fragrans
© 2023 Keir Morse
Lepechinia fragrans
© 2025 Ron Vanderhoff

Lepechinia ganderi    Gander's pitcher sage,  San diego pitchersage
rare native
Shrub

LAMIACEAE

Lepechinia ganderi
© 2021 Ron Vanderhoff
Lepechinia ganderi
© 2021 Ron Vanderhoff
Lepechinia ganderi
© 2021 Ron Vanderhoff

Lepechinia rossii    Ross' pitcher sage
rare native
Shrub

LAMIACEAE

Lepechinia rossii
© 2022 Keir Morse
Lepechinia rossii
© 2022 Keir Morse
Lepechinia rossii
© 2014 Zack Abbey

Lepidium flavum var. felipense    Borrego valley pepper grass,  Yellow pepperweed
rare native
Annual herb

BRASSICACEAE

Lepidium flavum var. felipense
© 2020 Matt Berger
Lepidium flavum var. felipense
© 2020 Ron Vanderhoff
Lepidium flavum var. felipense
© 2020 Matt Berger

Lepidium jaredii ssp. album    Panoche pepper grass
rare native
Annual herb

BRASSICACEAE

Lepidium jaredii ssp. album
© 2020 Matt Berger
Lepidium jaredii ssp. album
© 2020 Matt Berger
Lepidium jaredii ssp. album
© 2020 Matt Berger

Lepidium jaredii ssp. jaredii    Jared's pepper grass
rare native
Annual herb

BRASSICACEAE

Lepidium jaredii ssp. jaredii
© 2015 George Butterworth
Lepidium jaredii ssp. jaredii
© 2023 Matt Berger
Lepidium jaredii ssp. jaredii
© 2023 Matt Berger

Lepidium latipes var. heckardii    Heckard's pepper grass,  Heckard's pepperweed
rare native
Annual herb

BRASSICACEAE

Lepidium latipes var. heckardii
© 2009 Vernon Smith
Lepidium latipes var. heckardii
© Justin Chapelle
Lepidium latipes var. heckardii
© 2023 Justin Chappelle

Lepidium virginicum var. robinsonii    Robinson's pepper grass,  Robinson's pepperweed
rare native
Annual herb

BRASSICACEAE

Lepidium virginicum var. robinsonii
© 2022 Ron Vanderhoff
Lepidium virginicum var. robinsonii
© 2014 Keir Morse
Lepidium virginicum var. robinsonii
© 2014 Keir Morse

Leptosiphon ambiguus    Serpentine leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon ambiguus
© 2024 Steve Matson
Leptosiphon ambiguus
© 2024 Steve Matson
Leptosiphon ambiguus
© 2024 Steve Matson

Leptosiphon acicularis    Golden linanthus
rare native
Annual herb

POLEMONIACEAE

Leptosiphon acicularis
© 2019 David Greenberger
Leptosiphon acicularis
© 2017 Scott Yarger
Leptosiphon acicularis
© 2023 R.A. Chasey

Leptosiphon croceus    Coast yellow leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon croceus
© 2017 Toni Corelli
Leptosiphon croceus
© 2019 Ken Hickman
Leptosiphon croceus
© 2019 Ken Hickman

Leptosiphon floribundus ssp. hallii    Santa rosa mountains leptosiphon
rare native
Perennial herb

POLEMONIACEAE

Leptosiphon floribundus ssp. hallii
© 2020 Matt Berger
Leptosiphon floribundus ssp. hallii
© 2020 Matt Berger
Leptosiphon floribundus ssp. hallii
© 2020 Matt Berger

Leptosiphon grandiflorus    Large flowered leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon grandiflorus
© 2023 Suzanne L. Weakley
Leptosiphon grandiflorus
© 2017 David Greenberger
Leptosiphon grandiflorus
© 2022 Ron Vanderhoff

Leptosiphon jepsonii    Jepson's leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon jepsonii
© 2021 Zoya Akulova
Leptosiphon jepsonii
© 2023 R.A. Chasey
Leptosiphon jepsonii
© 2023 R.A. Chasey

Leptosiphon latisectus    Broad lobed leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon latisectus
© 2021 Dana York
Leptosiphon latisectus
© 2020 Joey Santore
Leptosiphon latisectus
© 2021 Dana York

Leptosiphon nuttallii ssp. howellii    Mt. tedoc leptosiphon
rare native
Perennial herb

POLEMONIACEAE

Leptosiphon nuttallii ssp. howellii
© 2019 Steve Matson
Leptosiphon nuttallii ssp. howellii
© 2019 Steve Matson
Leptosiphon nuttallii ssp. howellii
© 2019 Steve Matson

Leptosiphon oblanceolatus    Sierra nevada leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon oblanceolatus
© 2019 Matt Berger
Leptosiphon oblanceolatus
© 2022 Eric Koberle
Leptosiphon oblanceolatus
© 2022 Eric Koberle

Leptosiphon pygmaeus ssp. pygmaeus    Pygmy leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon pygmaeus ssp. pygmaeus
© 2008 Kim M. Klementowski
Leptosiphon pygmaeus ssp. pygmaeus
© 2008 Kim M. Klementowski
Leptosiphon pygmaeus ssp. pygmaeus
© 2008 Kim M. Klementowski

Leptosiphon rattanii    Rattan's leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon rattanii
© 2020 Tim Miller
Leptosiphon rattanii
© 2024 Chloe and Trevor Van Loon
Leptosiphon rattanii
© 2024 Chloe and Trevor Van Loon

Leptosiphon rosaceus    Rose leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon rosaceus
© 2019 Ken Hickman
Leptosiphon rosaceus
© 2019 Ken Hickman
Leptosiphon rosaceus
© 2014 Neal Kramer

Leptosiphon serrulatus    Madera leptosiphon
rare native
Annual herb

POLEMONIACEAE

Leptosiphon serrulatus
© 2008 Chris Winchell
Leptosiphon serrulatus
© 2008 Chris Winchell
Leptosiphon serrulatus
© 2008 Chris Winchell

Leptosyne hamiltonii    Mt. hamilton coreopsis
rare native
Annual herb

ASTERACEAE

Leptosyne hamiltonii
© 2022 William Lundgren
Leptosyne hamiltonii
© 2022 Helen Hancock
Leptosyne hamiltonii
© 2022 Mike Russler

Leptosyne maritima    Sea dahlia
rare native
Perennial herb

ASTERACEAE

Leptosyne maritima
© 2024 Ron Vanderhoff
Leptosyne maritima
© 2019 Ron Vanderhoff
Leptosyne maritima
© 2019 Ron Vanderhoff

Lessingia arachnoidea    Crystal springs lessingia
rare native
Annual herb

ASTERACEAE

Lessingia arachnoidea
© 2019 Joerg Lohse
Lessingia arachnoidea
© 2019 Patrick Furtado
Lessingia arachnoidea
© 2019 Brittany Burnett

Lessingia germanorum    San francisco lessingia
rare native
Annual herb

ASTERACEAE

Lessingia germanorum
© 2021 Charles Russell
Lessingia germanorum
© 2021 Charles Russell
Lessingia germanorum
© 2022 Mike Russler

Lessingia glandulifera var. tomentosa    Warner springs lessingia
rare native
Annual herb

ASTERACEAE

Lessingia glandulifera var. tomentosa
© 2022 Eric Koberle
Lessingia glandulifera var. tomentosa
© 2022 Eric Koberle
Lessingia glandulifera var. tomentosa
© 2022 Eric Koberle

Lessingia hololeuca    Woolly headed lessingia,  Woollyhead lessingia
rare native
Annual herb

ASTERACEAE

Lessingia hololeuca
© 2023 R.A. Chasey
Lessingia hololeuca
© 2023 R.A. Chasey
Lessingia hololeuca
© 2020 Ken Hickman

Lessingia micradenia var. glabrata    Smooth lessingia
rare native
Annual herb

ASTERACEAE

Lessingia micradenia var. glabrata
© 2019 Ken Hickman
Lessingia micradenia var. glabrata
© 2020 R.A. Chasey
Lessingia micradenia var. glabrata
© 2019 Julia King

Lessingia micradenia var. micradenia    Mt. tamalpais lessingia
rare native
Annual herb

ASTERACEAE

Lessingia micradenia var. micradenia
© 2019 David Greenberger
Lessingia micradenia var. micradenia
© 2017 Scott Yarger
Lessingia micradenia var. micradenia
© 2023 R.A. Chasey

Lessingia tenuis    Spring lessingia
rare native
Annual herb

ASTERACEAE

Lessingia tenuis
© 2022 Mike Russler
Lessingia tenuis
© 2022 Mike Russler
Lessingia tenuis
© 2022 Mike Russler

Lewisia brachycalyx    Short sepaled lewisia,  Shortsepal lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia brachycalyx
© 2023 Ryan O'Dell
Lewisia brachycalyx
© 2023 Ryan O'Dell
Lewisia brachycalyx
© 2023 Ryan O'Dell

Lewisia cantelovii    Cantelow's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia cantelovii
© 2005 Steve Matson
Lewisia cantelovii
© 2005 Steve Matson
Lewisia cantelovii
© 2005 Steve Matson

Lewisia congdonii    Congdon's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia congdonii
© 2018 Steve Matson
Lewisia congdonii
© Geoff Burleigh
Lewisia congdonii
© 2015 BOB CASE

Lewisia cotyledon var. heckneri    Heckner's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia cotyledon var. heckneri
© 2025 Mary Ann Machi
Lewisia cotyledon var. heckneri
© 2025 Mary Ann Machi
Lewisia cotyledon var. heckneri
© 2025 Mary Ann Machi

Lewisia cotyledon var. howellii    Howell's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia cotyledon var. howellii
© 2016 Steve Matson
Lewisia cotyledon var. howellii
© 2016 Steve Matson
Lewisia cotyledon var. howellii
© 2016 Steve Matson

Lewisia disepala    Yosemite lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia disepala
© 2021 John Doyen
Lewisia disepala
© 2021 John Doyen
Lewisia disepala
© 2021 Jacob Smith

Lewisia kelloggii ssp. hutchisonii    Sierra valley lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia kelloggii ssp. hutchisonii
© 2020 Hannah Kang
Lewisia kelloggii ssp. hutchisonii
© 2019 Matt Berger
Lewisia kelloggii ssp. hutchisonii
© 2020 Hannah Kang

Lewisia kelloggii ssp. kelloggii    Kellogg's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia kelloggii ssp. kelloggii
© 2017 Robert Barnard
Lewisia kelloggii ssp. kelloggii
© 2009 Barry Breckling
Lewisia kelloggii ssp. kelloggii
© 2009 Barry Breckling

Lewisia longipetala    Long petaled lewisia,  Truckee lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia longipetala
© 2011 Steve Matson
Lewisia longipetala
© 2011 Steve Matson
Lewisia longipetala
© 2011 Steve Matson

Lewisia oppositifolia    Opposite leaved lewisia,  Oppositeleaf lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia oppositifolia
© 2011 John Doyen
Lewisia oppositifolia
© 2011 John Doyen
Lewisia oppositifolia
© 2011 John Doyen

Lewisia serrata    Saw toothed lewisia,  Sawtooth lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia serrata
© 2022 Camille Nowell
Lewisia serrata
© Shane Hanofee
Lewisia serrata
© Chloe and Trevor Van Loon

Lewisia stebbinsii    Stebbins' lewisia,  Stebbins's lewisia
rare native
Perennial herb

MONTIACEAE

Lewisia stebbinsii
© 2020 Dee Shea Himes
Lewisia stebbinsii
© 2015 John Doyen
Lewisia stebbinsii
© 2017 Adam Chasey

Lilaeopsis masonii    Mason's lilaeopsis,  Mudflat quillplant
rare native
Perennial herb

APIACEAE

Lilaeopsis masonii
© 2021 Cynthia Powell
Lilaeopsis masonii
© 2021 Cynthia Powell
Lilaeopsis masonii
© 2021 John Game

Lilium bolanderi    Bolander's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium bolanderi
© 2018 Anna Sereno
Lilium bolanderi
© 2018 Anna Sereno
Lilium bolanderi
© 2020 Kolby Lundgren

Lilium humboldtii ssp. humboldtii    Humboldt's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium humboldtii ssp. humboldtii
© 2008 David Magney
Lilium humboldtii ssp. humboldtii
© 2021 Lynn Halsted
Lilium humboldtii ssp. humboldtii
© 2021 Mike Russler

Lilium humboldtii ssp. ocellatum    Humboldt lily,  Spotted humboldt's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium humboldtii ssp. ocellatum
© 2019 Ron Vanderhoff
Lilium humboldtii ssp. ocellatum
© 2020 Tom Ballinger
Lilium humboldtii ssp. ocellatum
© 2024 D.L. Nguyen

Lilium kelloggii    Kellogg's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium kelloggii
© 2024 Suzanne L. Weakley
Lilium kelloggii
© 2016 Steve Matson
Lilium kelloggii
© 2022 Mary Ann Machi

Lilium maritimum    Coast lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium maritimum
© Loarie
Lilium maritimum
© 2019 Timothy Boomer
Lilium maritimum
© 2019 Timothy Boomer

Lilium occidentale    Western lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium occidentale
© 2020 Jeff Bisbee
Lilium occidentale
© 2018 Jeff Bisbee
Lilium occidentale
© 2020 Jeff Bisbee

Lilium pardalinum ssp. pitkinense    Pitkin marsh lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium pardalinum ssp. pitkinense
© 2011 Vernon Smith
Lilium pardalinum ssp. pitkinense
© 2015 Aaron Arthur
Lilium pardalinum ssp. pitkinense
© 2015 Aaron Arthur

Lilium pardalinum ssp. vollmeri    Vollmer's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium pardalinum ssp. vollmeri
© 2022 Mary Ann Machi
Lilium pardalinum ssp. vollmeri
© 2022 Mary Ann Machi
Lilium pardalinum ssp. vollmeri
© 2023 Mary Ann Machi

rare native
Perennial herb (bulb)

LILIACEAE

Lilium pardalinum ssp. wigginsii
© 2022 Dana York
Lilium pardalinum ssp. wigginsii
© 2019 Dana York
Lilium pardalinum ssp. wigginsii
© 2019 Dana York

Lilium parryi    Lemon lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium parryi
© 2021 Maisie Borg
Lilium parryi
© 2023 Aaron Echols
Lilium parryi
© 2021 Rico Ramirez

Lilium rubescens    Chaparral lily,  Redwood lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium rubescens
© 2022 Mary Ann Machi
Lilium rubescens
© 2022 Mary Ann Machi
Lilium rubescens
© 2019 george jackson

Lilium washingtonianum ssp. purpurascens    Cascade lily,  Purple flowered washington lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium washingtonianum ssp. purpurascens
© 2019 Anna Sereno
Lilium washingtonianum ssp. purpurascens
© 2019 Anna Sereno
Lilium washingtonianum ssp. purpurascens
© 2021 Mary Ann Machi

Limnanthes alba ssp. parishii    Parish's meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes alba ssp. parishii
© 2024 Ryan O'Dell
Limnanthes alba ssp. parishii
© 2024 Ryan O'Dell
Limnanthes alba ssp. parishii
© 2024 Ryan O'Dell

Limnanthes bakeri    Baker's meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes bakeri
© 2020 Ross Wilming
Limnanthes bakeri
© 2018 Ross Wilming
Limnanthes bakeri
© 2018 Ross Wilming

Limnanthes douglasii ssp. ornduffii    Ornduff's meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes douglasii ssp. ornduffii
© 2009 Toni Corelli
Limnanthes douglasii ssp. ornduffii
© 2019 Adam Chasey
Limnanthes douglasii ssp. ornduffii
© 2019 Adam Chasey

Limnanthes douglasii ssp. sulphurea    Douglas' meadowfoam,  Meadow foam,  Point Reyes meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes douglasii ssp. sulphurea
© 2024 Charles Russell
Limnanthes douglasii ssp. sulphurea
© 2024 Charles Russell
Limnanthes douglasii ssp. sulphurea
© 2018 Woody Elliott

Limnanthes floccosa ssp. bellingeriana    Bellinger's meadowfoam,  Woolly meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes floccosa ssp. bellingeriana
© 2013 Scot Loring
Limnanthes floccosa ssp. bellingeriana
© 1988 Dean Wm. Taylor

Limnanthes floccosa ssp. californica    Butte county meadowfoam,  California meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes floccosa ssp. californica
© 2021 David popp
Limnanthes floccosa ssp. californica
© 2025 Mike Russler
Limnanthes floccosa ssp. californica
© 2018 Ann Elliott

Limnanthes floccosa ssp. floccosa    Woolly meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes floccosa ssp. floccosa
© 2021 David popp
Limnanthes floccosa ssp. floccosa
© 2021 Donald Burk
Limnanthes floccosa ssp. floccosa
© 2023 Donald Burk

Limnanthes vinculans    Sebastopol meadowfoam
rare native
Annual herb

LIMNANTHACEAE

Limnanthes vinculans
© 2024 Chloe and Trevor Van Loon
Limnanthes vinculans
© 2024 Chloe and Trevor Van Loon
Limnanthes vinculans
© 2023 Austin keene

Limosella australis    Welsh mudwort
rare native
Perennial herb

SCROPHULARIACEAE

Limosella australis
© 2024 R.A. Chasey
Limosella australis
© 2008 Louis-M. Landry
Limosella australis
© 2024 R.A. Chasey

Linanthus bellus    Desert beauty,  Desertbeauty
rare native
Annual herb

POLEMONIACEAE

Linanthus bellus
© 2019 Kim Cabrera
Linanthus bellus
© 2019 Kim Cabrera
Linanthus bellus
© 2019 Kim Cabrera

Linanthus bernardinus    Pioneertown linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus bernardinus
© 2013 Duncan S. Bell
Linanthus bernardinus
© © 2013 Duncan S. Bell
Linanthus bernardinus
© 2013 Duncan S. Bell

Linanthus californicus ssp. tomentosus    fuzzy prickly-phlox
rare native
Shrub

POLEMONIACEAE

Linanthus californicus ssp. tomentosus
© 2023 arheyman01
Linanthus californicus ssp. tomentosus
© 2024 westinn
Linanthus californicus ssp. tomentosus
© 2022 aaron_echols

Linanthus concinnus    San gabriel linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus concinnus
© 2022 Don M. Davis
Linanthus concinnus
© 2024 Eric Koberle
Linanthus concinnus
© 2019 Matt Berger

Linanthus jaegeri    San jacinto linanthus
rare native
Perennial herb

POLEMONIACEAE

Linanthus jaegeri
© 2019 Matt Berger
Linanthus jaegeri
© 2019 Matt Berger
Linanthus jaegeri
© 2019 Matt Berger

Linanthus killipii    Baldwin lake linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus killipii
© 2019 Matt Berger
Linanthus killipii
© 2019 Matt Berger
Linanthus killipii
© 2019 Matt Berger

Linanthus maculatus ssp. emaculatus    Jacumba Mountains linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus maculatus ssp. emaculatus
© 2023 Eric Koberle
Linanthus maculatus ssp. emaculatus
© 2023 Eric Koberle
Linanthus maculatus ssp. emaculatus
© 2023 Eric Koberle

Linanthus maculatus ssp. maculatus    Little San Bernardino Mtns. linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus maculatus ssp. maculatus
© 2023 Matt Berger
Linanthus maculatus ssp. maculatus
© 2023 Matt Berger
Linanthus maculatus ssp. maculatus
© 2024 Lynn Sweet

Linanthus orcuttii    Orcutt's linanthus
rare native
Annual herb

POLEMONIACEAE

Linanthus orcuttii
© 2019 Matt Berger
Linanthus orcuttii
© 2019 Matt Berger
Linanthus orcuttii
© 2019 Matt Berger

Linum puberulum    Hairy flax,  Plains flax
rare native
Annual herb

LINACEAE

Linum puberulum
© 2022 Eric Engles
Linum puberulum
© 2009 Christopher L. Christie
Linum puberulum
© 2012 Keir Morse

Listera cordata    Heart leaved twayblade,  Heartleaf twayblade
rare native
Perennial herb

ORCHIDACEAE

Listera cordata
© 2021 Timothy Boomer
Listera cordata
© 2021 Timothy Boomer
Listera cordata
© 2022 Steve Conger

Lithophragma maximum    San clemente island woodland star
rare native
Perennial herb

SAXIFRAGACEAE

Lithophragma maximum
© 2019 Stevie Steele
Lithophragma maximum
© 2019 Stevie Steele
Lithophragma maximum
© 2018 Emma Havstad

Lithospermum incisum    Narrowleaf gromwell,  Narrowleaf stoneseed
rare native
Perennial herb

BORAGINACEAE

Lithospermum incisum
© 2005 James M. Andre
Lithospermum incisum
© 2005 James M. Andre
Lithospermum incisum
© 2010 Lee Dittmann

Loeflingia squarrosa var. artemisiarum    Sagebrush loeflingia
rare native
Annual herb

CARYOPHYLLACEAE

Loeflingia squarrosa var. artemisiarum
© 2010 Jim Morefield
Loeflingia squarrosa var. artemisiarum
© 2016 Jim Morefield
Loeflingia squarrosa var. artemisiarum
© 2016 Jim Morefield

Loeseliastrum depressum    Depressed ipomopsis
rare native
Annual herb

POLEMONIACEAE

Loeseliastrum depressum
© 2019 Steve Matson
Loeseliastrum depressum
© 2019 Steve Matson
Loeseliastrum depressum
© 2011 Steve Matson

Lomatium canbyi    Canby's biscuitroot,  Canby's lomatium
rare native
Perennial herb

APIACEAE

Lomatium canbyi
© 2011 Mary Winter
Lomatium canbyi
© 2011 Mary Winter
Lomatium canbyi
© 2002 Gary A. Monroe

Lomatium congdonii    Congdon's lomatium,  Mariposa desertparsley
rare native
Perennial herb

APIACEAE

Lomatium congdonii
© 2020 Matt Berger
Lomatium congdonii
© 2024 Mike Russler
Lomatium congdonii
© 2024 Mike Russler

Lomatium engelmannii    Engelmann's desertparsley,  Engelmann's lomatium
rare native
Perennial herb

APIACEAE

Lomatium engelmannii
© 2018 Matt Berger
Lomatium engelmannii
© 2024 Jordan Collins
Lomatium engelmannii
© 2024 Jordan Collins

Lomatium foeniculaceum ssp. inyoense    Inyo biscuitroot,  Inyo lomatium
rare native
Perennial herb

APIACEAE

Lomatium foeniculaceum ssp. inyoense
© 2009 Steve Matson
Lomatium foeniculaceum ssp. inyoense
© 2009 Steve Matson
Lomatium foeniculaceum ssp. inyoense
© 2009 Steve Matson

Lomatium foeniculaceum ssp. macdougalii    Macdougal's lomatium
rare native
Perennial herb

APIACEAE

Lomatium foeniculaceum ssp. macdougalii
© 2023 Ryan O'Dell
Lomatium foeniculaceum ssp. macdougalii
© 2023 Ryan O'Dell
Lomatium foeniculaceum ssp. macdougalii
© 2023 Ryan O'Dell

Lomatium grayi    Gray's lomatium
rare native
Perennial herb

APIACEAE

Lomatium grayi
© 2008 Trent M. Draper
Lomatium grayi
© 2008 Trent M. Draper
Lomatium grayi
© 2008 Trent M. Draper

Lomatium hendersonii    Henderson's biscuitroot,  Henderson's lomatium
rare native
Perennial herb

APIACEAE

Lomatium hendersonii
© 2022 Dolly B. Chapman
Lomatium hendersonii
© 2007 Norman Jensen
Lomatium hendersonii
© 2007 Norman Jensen

Lomatium hooveri    Hoover's lomatium
rare native
Perennial herb

APIACEAE

Lomatium hooveri
© 2015 Steve Matson
Lomatium hooveri
© 2017 Steve Matson
Lomatium hooveri
© 2017 Steve Matson

Lomatium howellii    Howell's biscuitroot,  Howell's lomatium
rare native
Perennial herb

APIACEAE

Lomatium howellii
© 2008 Keir Morse
Lomatium howellii
© 2008 Keir Morse
Lomatium howellii
© 2024 Ryan O'Dell

Lomatium insulare    San Nicholas biscuitroot,  San Nicolas island lomatium
rare native
Perennial herb

APIACEAE

Lomatium insulare
© 2011 Vince Scheidt
Lomatium insulare
© 2016 Adam Searcy
Lomatium insulare
© 2016 Adam Searcy

Lomatium martindalei    Cascade desertparsley,  Coast range lomatium
rare native
Perennial herb

APIACEAE

Lomatium martindalei
© 2015 John Doyen
Lomatium martindalei
© 2010 Keir Morse
Lomatium martindalei
© 2007 Matt Below

Lomatium observatorium    Mt. hamilton lomatium
rare native
Perennial herb

APIACEAE

Lomatium observatorium
© 2021 R.A. Chasey
Lomatium observatorium
© 2020 Amy Patten
Lomatium observatorium
© 2021 R.A. Chasey

Lomatium parvifolium    Coastal biscuitroot,  Small leaved lomatium
rare native
Perennial herb

APIACEAE

Lomatium parvifolium
© 2020 David Greenberger
Lomatium parvifolium
© 2023 Mike Russler
Lomatium parvifolium
© 2021 Patrick Furtado

Lomatium peckianum    Peck's desertparsley,  Peck's lomatium
rare native
Perennial herb

APIACEAE

Lomatium peckianum
© 2021 Amy Rachkowski
Lomatium peckianum
© 2021 Amy Rachkowski
Lomatium peckianum
© 2011 Steve Matson

Lomatium ravenii    Lassen parsley,  Raven's lomatium
rare native
Perennial herb

APIACEAE

Lomatium ravenii
© 2012 Gerald Carr
Lomatium ravenii
© 2012 Gerald Carr
Lomatium ravenii
© 2012 Gerald Carr

Lomatium ravenii var. paiutense    Paiute lomatium
rare native
Perennial herb

APIACEAE

Lomatium ravenii var. paiutense
© 2012 Gerald Carr
Lomatium ravenii var. paiutense
© 2012 Gerald Carr
Lomatium ravenii var. paiutense
© 2012 Gerald Carr

Lomatium ravenii var. ravenii    Raven's lomatium
rare native
Perennial herb

APIACEAE

Lomatium ravenii var. ravenii
© 2021 Sarah Tona
Lomatium ravenii var. ravenii
© 2021 Sarah Tona
Lomatium ravenii var. ravenii
© 2021 Sarah Tona

Lomatium repostum    Napa biscuitroot,  Napa lomatium
rare native
Perennial herb

APIACEAE

Lomatium repostum
© 2019 Jason Mills
Lomatium repostum
© 2021 Larry Dizmang
Lomatium repostum
© 2021 Larry Dizmang

Lomatium rigidum    Big pine biscuitroot,  Stiff lomatium
rare native
Perennial herb

APIACEAE

Lomatium rigidum
© 2012 Steve Matson
Lomatium rigidum
© 2010 Steve Matson
Lomatium rigidum
© 2010 Steve Matson

Lomatium roseanum    Biscuitroot
rare native
Perennial herb

APIACEAE

Lomatium roseanum
© 2012 Dean Wm. Taylor, Ph.D.
Lomatium roseanum
© 2012 Dean Wm. Taylor, Ph.D.

Lomatium shevockii    Owens peak desertparsley,  Owens peak lomatium
rare native
Perennial herb

APIACEAE

Lomatium shevockii
© 2019 Matt Berger
Lomatium shevockii
© 2019 Matt Berger
Lomatium shevockii
© 2019 Matt Berger

Lomatium stebbinsii    Stebbins' desertparsley,  Stebbins's lomatium
rare native
Perennial herb

APIACEAE

Lomatium stebbinsii
© 2019 Matt Berger
Lomatium stebbinsii
© 2019 Matt Berger
Lomatium stebbinsii
© 2024 Mike Russler

Lomatium tracyi    Tracy's desertparsley,  Tracy's lomatium
rare native
Perennial herb

APIACEAE

Lomatium tracyi
© 2019 Steve Matson
Lomatium tracyi
© 2019 Steve Matson
Lomatium tracyi
© 2019 Steve Matson

Lonicera subspicata var. subspicata    Santa Barbara honeysuckle,  Southern honeysuckle
rare native
Shrub

CAPRIFOLIACEAE

Lonicera subspicata var. subspicata
© 2022 Tanya baxter
Lonicera subspicata var. subspicata
© 2014 Keir Morse
Lonicera subspicata var. subspicata
© 2020 Deborah Dozier

Lupinus albifrons var. abramsii    Abrams' lupine
rare native
Perennial herb

FABACEAE

Lupinus albifrons var. abramsii
© 2018 Michael Mitchell
Lupinus albifrons var. abramsii
© 2018 Michael Mitchell
Lupinus albifrons var. abramsii
© 2022 Ryan O'Dell

Lupinus excubitus var. johnstonii    interior bush lupine
rare native
Perennial herb

FABACEAE

Lupinus excubitus var. johnstonii
© 2019 dora black
Lupinus excubitus var. johnstonii
© 2019 dora black

Lupinus albifrons var. johnstonii    interior bush lupine
rare native
Perennial herb

FABACEAE

Lupinus albifrons var. johnstonii
© 2019 dora black
Lupinus albifrons var. johnstonii
© 2019 dora black

Lupinus albifrons var. medius    mountain springs lupine
rare native
Shrub

FABACEAE

Lupinus albifrons var. medius
© 2024 meljean
Lupinus albifrons var. medius
© 2024 meljean
Lupinus albifrons var. medius
© 2011 Anna Bennett

Lupinus excubitus var. medius    mountain springs lupine
rare native
Shrub

FABACEAE

Lupinus excubitus var. medius
© 2024 meljean
Lupinus excubitus var. medius
© 2024 meljean
Lupinus excubitus var. medius
© 2011 Anna Bennett

Lupinus antoninus    Anthony peak lupine
rare native
Perennial herb

FABACEAE

Lupinus antoninus
© 2024 Chloe and Trevor Van Loon
Lupinus antoninus
© 2024 Chloe and Trevor Van Loon
Lupinus antoninus
© 2024 Chloe and Trevor Van Loon

Lupinus arboreus var. eximius    San mateo tree lupine
rare native
Shrub

FABACEAE

Lupinus arboreus var. eximius
© 2022 Cynthia Powell
Lupinus arboreus var. eximius
© 2021 Chuck Kozak
Lupinus arboreus var. eximius
© 2021 Mike Russler

Lupinus cervinus    Santa lucia lupine
rare native
Perennial herb

FABACEAE

Lupinus cervinus
© 2019 Scott Yarger
Lupinus cervinus
© 2019 Scott Yarger
Lupinus cervinus
© Beatrice F. Howitt 1999 California Academy of Sciences

Lupinus citrinus var. citrinus    Orange lupine,  Orangeflower lupine
rare native
Annual herb

FABACEAE

Lupinus citrinus var. citrinus
© 2023 Mike Russler
Lupinus citrinus var. citrinus
© 2019 Jacob Smith
Lupinus citrinus var. citrinus
© 2019 Jacob Smith

Lupinus citrinus var. deflexus    Mariposa lupine,  Orangeflower lupine
rare native
Annual herb

FABACEAE

Lupinus citrinus var. deflexus
© 2009 Michael Osborne
Lupinus citrinus var. deflexus
© 2009 Michael Osborne
Lupinus citrinus var. deflexus
© 2009 Michael Osborne

Lupinus constancei    Lassics lupine
rare native
Perennial herb

FABACEAE

Lupinus constancei
© 2021 Dee Shea Himes
Lupinus constancei
© 2023 Morgan Stickrod
Lupinus constancei
© 2020 Dee Shea Himes

Lupinus croceus var. pilosellus    Mt. eddy lupine,  Saffron flowered lupine
rare native
Perennial herb

FABACEAE

Lupinus croceus var. pilosellus
© 2022 Julie A. Kierstead
Lupinus croceus var. pilosellus
© 2022 Julie A. Kierstead
Lupinus croceus var. pilosellus
© 2022 Julie A. Kierstead

Lupinus dalesiae    Quincy lupine
rare native
Perennial herb

FABACEAE

Lupinus dalesiae
© 2005 Steve Matson
Lupinus dalesiae
© 2019 Matt Berger
Lupinus dalesiae
© 2005 Steve Matson

Lupinus duranii    Duran's lupine,  Mono lake lupine,  Mono lupin
rare native
Perennial herb

FABACEAE

Lupinus duranii
© 2020 Steve Matson
Lupinus duranii
© 2021 Mike Russler
Lupinus duranii
© 2022 R.A. Chasey

Lupinus elatus    Tall silky lupine
rare native
Perennial herb

FABACEAE

Lupinus elatus
© 2003 Christopher L. Christie
Lupinus elatus
© 2003 Michael Charters

Lupinus elmeri    Elmer's lupine
rare native
Perennial herb

FABACEAE

Lupinus elmeri
© 2024 Chloe and Trevor Van Loon
Lupinus elmeri
© 2024 Chloe and Trevor Van Loon
Lupinus elmeri
© 2024 Chloe and Trevor Van Loon

Lupinus gracilentus    Green slender lupine
rare native
Perennial herb

FABACEAE


Lupinus guadalupensis    Guadalupe island lupine
rare native
Annual herb

FABACEAE

Lupinus guadalupensis
© 2011 Neal Kramer
Lupinus guadalupensis
© 2008 Kim M. Klementowski
Lupinus guadalupensis
© 2008 Kim M. Klementowski

Lupinus holmgrenianus    Holmgren's lupine
rare native
Perennial herb

FABACEAE

Lupinus holmgrenianus
© 2011 Shannon Henke
Lupinus holmgrenianus
© 2011 Shannon Henke
Lupinus holmgrenianus
© 2011 Shannon Henke

Lupinus lapidicola    Heller's dwarf lupine,  Mt. Eddy lupine
rare native
Perennial herb

FABACEAE

Lupinus lapidicola
© 2020 Julie A. Kierstead
Lupinus lapidicola
© 2019 R.A. Chasey
Lupinus lapidicola
© 2016 Dana York

Lupinus latifolius var. barbatus    Hair tuft lupine
rare native
Perennial herb

FABACEAE


Lupinus lepidus var. culbertsonii    Hockett meadows lupine
rare native
Perennial herb

FABACEAE

Lupinus lepidus var. culbertsonii
© 2018 Mary Merriman
Lupinus lepidus var. culbertsonii
© 2015 Dana York
Lupinus lepidus var. culbertsonii
© © 1995 Saint Mary's College of California

Lupinus lepidus var. utahensis    Utah tidy lupine
rare native
Perennial herb

FABACEAE

Lupinus lepidus var. utahensis
© 2009 Steve Matson
Lupinus lepidus var. utahensis
© 2024 Erin Bergman
Lupinus lepidus var. utahensis
© 2009 Steve Matson

Lupinus ludovicianus    San luis lupine,  San luis obispo county lupine
rare native
Perennial herb

FABACEAE

Lupinus ludovicianus
© 2023 Chloe and Trevor Van Loon
Lupinus ludovicianus
© 2016 Kristie Haydu
Lupinus ludovicianus
© 2023 Chloe and Trevor Van Loon

Lupinus magnificus var. glarecola    Coso mtns. lupine,  Panamint mountain lupine
rare native
Perennial herb

FABACEAE

Lupinus magnificus var. glarecola
© Gerald and Buff Corsi 2013 California Academy of Sciences

Lupinus magnificus var. hesperius    Mcgee meadows lupine,  Panamint mountain lupine
rare native
Perennial herb

FABACEAE

Lupinus magnificus var. hesperius
© 2022 Dana York
Lupinus magnificus var. hesperius
© 2023 Maria Jesus
Lupinus magnificus var. hesperius
© 2023 Maria Jesus

Lupinus magnificus var. magnificus    Panamint mountain lupine,  Panamint mtns. lupine
rare native
Perennial herb

FABACEAE

Lupinus magnificus var. magnificus
© 2024 Dana York
Lupinus magnificus var. magnificus
© 2024 Dana York
Lupinus magnificus var. magnificus
© 2011 Steve Matson

Lupinus milo-bakeri    Milo baker's lupine
rare native
Annual herb

FABACEAE

Lupinus milo-bakeri
© Jo-Ann Ordano 2000 California Academy of Sciences
Lupinus milo-bakeri
© 1965 California Native Plant Society
Lupinus milo-bakeri
© 1995 Saint Mary's College of California

Lupinus nevadensis    Nevada lupine
rare native
Perennial herb

FABACEAE

Lupinus nevadensis
© 2010 Steve Matson
Lupinus nevadensis
© 2010 Steve Matson
Lupinus nevadensis
© 2010 Steve Matson

Lupinus nipomensis    Nipomo lupine,  Nipomo mesa lupine
rare native
Annual herb

FABACEAE

Lupinus nipomensis
© 2022 Justin Luong
Lupinus nipomensis
© 2022 Justin Luong
Lupinus nipomensis
© 2018 Michaela Robbins

Lupinus padre-crowleyi    Dedecker lupine,  Father crowley's lupine
rare native
Perennial herb

FABACEAE

Lupinus padre-crowleyi
© 2010 Steve Matson
Lupinus padre-crowleyi
© 2010 Steve Matson
Lupinus padre-crowleyi
© 2010 Steve Matson

Lupinus paynei    Payne's bush lupine
rare native
Shrub

FABACEAE

Lupinus paynei
© 2008 Tony Morosco
Lupinus paynei
© 2008 Tony Morosco
Lupinus paynei
© 2008 Tony Morosco

Lupinus peirsonii    Long lupine,  Peirson's lupine
rare native
Perennial herb

FABACEAE

Lupinus peirsonii
© 2020 Mitchell Coleman
Lupinus peirsonii
© 2024 Rico Ramirez
Lupinus peirsonii
© 2020 Mitchell Coleman

Lupinus pusillus var. intermontanus    Intermountain lupine
rare native
Annual herb

FABACEAE

Lupinus pusillus var. intermontanus
© 2014 Steve Matson
Lupinus pusillus var. intermontanus
© 2014 Steve Matson
Lupinus pusillus var. intermontanus
© 2014 Steve Matson

Lupinus sericatus    Cobb Mountain lupine
rare native
Perennial herb

FABACEAE

Lupinus sericatus
© 2015 Mitchell Bamford
Lupinus sericatus
© 2015 Mitchell Bamford
Lupinus sericatus
© 2020 Tim Miller

Lupinus spectabilis    Shaggyhair lupine
rare native
Annual herb

FABACEAE

Lupinus spectabilis
© 2020 Matt Berger
Lupinus spectabilis
© 2022 Mike Russler
Lupinus spectabilis
© 2022 Cynthia Powell

Lupinus tidestromii    Tidestrom's lupine
rare native
Perennial herb (rhizomatous)

FABACEAE

Lupinus tidestromii
© 2023 Mary Conway
Lupinus tidestromii
© 2023 Mary Conway
Lupinus tidestromii
© 2012 BOB CASE

Lupinus tracyi    Tracy's lupine
rare native
Perennial herb

FABACEAE

Lupinus tracyi
© 2024 Chloe and Trevor Van Loon
Lupinus tracyi
© 2015 Dana York
Lupinus tracyi
© 2024 Chloe and Trevor Van Loon

Lupinus uncialis    inchhigh lupine,  Lilliput lupine,  Inch high lupine
rare native
Annual herb

FABACEAE

Lupinus uncialis
© 2023 Steve Matson
Lupinus uncialis
© 2024 Matt C. Berger
Lupinus uncialis
© 2023 Steve Matson

Lycium brevipes var. hassei    Santa catalina island desert thorn
rare native
Shrub

SOLANACEAE

Lycium brevipes var. hassei
© 2020 Ron Vanderhoff
Lycium brevipes var. hassei
© 2020 Ron Vanderhoff
Lycium brevipes var. hassei
© 2020 Ron Vanderhoff

Lycium californicum    California box thorn,  California boxthorn,  California desert thorn
rare native
Shrub

SOLANACEAE

Lycium californicum
© 2011 Keir Morse
Lycium californicum
© 2011 Keir Morse
Lycium californicum
© 2020 Ron Vanderhoff

Lycium exsertum    Arizona desert-thorn
rare native
Shrub

SOLANACEAE


Lycium parishii    Parish's desert thorn
rare native
Shrub

SOLANACEAE

Lycium parishii
© 2016 Keir Morse
Lycium parishii
© 2021 Ron Vanderhoff
Lycium parishii
© 2021 Ron Vanderhoff

Lycium torreyi    Torrey's box thorn
rare native
Shrub

SOLANACEAE

Lycium torreyi
© 2017 Wynn Anderson
Lycium torreyi
© 2013 Wynn Anderson
Lycium torreyi
© 2018 Wynn Anderson

Lycium verrucosum    San nicholas desert thorn,  San nicolas island desert thorn,  San nicolas thorn
rare native
Shrub

SOLANACEAE


Lycopodiella inundata    Bog club moss,  Inundated clubmoss
rare native

LYCOPODIACEAE

Lycopodiella inundata
© 2015 Greg O'Connell
Lycopodiella inundata
© 1995 Saint Mary's College of California
Lycopodiella inundata
© 2012 Phil Pullen

Lycopodium clavatum    Running clubmoss,  Running pine
rare native

LYCOPODIACEAE

Lycopodium clavatum
© 2020 Wyatt Dooley
Lycopodium clavatum
© 2018 Jonathan Lee
Lycopodium clavatum
© 2010 Louis-M. Landry

Lycopus uniflorus    Northern bugleweed
rare native
Perennial herb

LAMIACEAE

Lycopus uniflorus
© 2006 Steve Matson
Lycopus uniflorus
© 2006 Steve Matson
Lycopus uniflorus
© 2006 Steve Matson

Lyonothamnus floribundus ssp. aspleniifolius    Santa cruz island ironwood
rare native
Tree

ROSACEAE

Lyonothamnus floribundus ssp. aspleniifolius
© 2014 Steve Matson
Lyonothamnus floribundus ssp. aspleniifolius
© 2020 Susan McDougall
Lyonothamnus floribundus ssp. aspleniifolius
© 2014 Steve Matson

Lyonothamnus floribundus ssp. floribundus    Catalina ironwood,  Santa catalina island ironwood
rare native
Tree

ROSACEAE

Lyonothamnus floribundus ssp. floribundus
© 2018 Ron Vanderhoff
Lyonothamnus floribundus ssp. floribundus
© 2025 Ron Vanderhoff
Lyonothamnus floribundus ssp. floribundus
© 2019 B.J. Dion

Lyrocarpa coulteri    Coulter's lyrepod
rare native
Perennial herb

BRASSICACEAE

Lyrocarpa coulteri
© 2020 Bonnie Nickel
Lyrocarpa coulteri
© 2020 Matt Berger
Lyrocarpa coulteri
© 2020 David Greenberger

Lysimachia europaea    Arctic starflower
rare native
Perennial herb

MYRSINACEAE

Lysimachia europaea
© 2017 Barry Rice
Lysimachia europaea
© 2014 Wynn Anderson
Lysimachia europaea
© 2014 Wynn Anderson

Lysimachia thyrsiflora    Tufted loosestrife,  Tufted yellow loosestrife
rare native
Perennial herb

MYRSINACEAE

Lysimachia thyrsiflora
© 2016 Keir Morse
Lysimachia thyrsiflora
© 2011 Sierra Pacific Industries
Lysimachia thyrsiflora
© 2016 Keir Morse

Madia radiata    Golden madia,  Showy madia
rare native
Annual herb

ASTERACEAE

Madia radiata
© 2023 Jacob Smith
Madia radiata
© 2016 George Butterworth
Madia radiata
© 2016 George Butterworth

Malacothamnus abbottii    Abbott's bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus abbottii
© 2018 Keir Morse
Malacothamnus abbottii
© 2019 Keir Morse
Malacothamnus abbottii
© 2024 Mike Russler

Malacothamnus aboriginum    Indian Valley bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus aboriginum
© 2021 Mike Russler
Malacothamnus aboriginum
© 2012 Gary McDonald
Malacothamnus aboriginum
© 2022 Mike Russler

Malacothamnus arcuatus    Arcuate bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus arcuatus
© 2019 Ken Hickman
Malacothamnus arcuatus
© 2006 Toni Corelli
Malacothamnus arcuatus
© 2022 R.A. Chasey

Malacothamnus hallii    Eastern bewildering bushmallow
native
Shrub

MALVACEAE

Malacothamnus hallii
© 2022 R.A. Chasey
Malacothamnus hallii
© 2022 R.A. Chasey
Malacothamnus hallii
© 2017 Keir Morse

Malacothamnus clementinus    San Clemente Island bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus clementinus
© 2011 Dylan Neubauer
Malacothamnus clementinus
© 2011 Dylan Neubauer
Malacothamnus clementinus
© 2011 Dylan Neubauer

Malacothamnus davidsonii    Davidson's bushmallow,  Tujunga bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus davidsonii
© 2017 Kristin Sabo
Malacothamnus davidsonii
© 2017 Kristin Sabo
Malacothamnus davidsonii
© 2017 Kristin Sabo

Malacothamnus fasciculatus var. catalinensis    Santa Catalina Island bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus fasciculatus var. catalinensis
© 2019 Keir Morse
Malacothamnus fasciculatus var. catalinensis
© 2019 Keir Morse
Malacothamnus fasciculatus var. catalinensis
© 2019 Keir Morse

Malacothamnus fasciculatus var. nesioticus    Santa Cruz Island bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus fasciculatus var. nesioticus
© 2022 Kyle Suchy
Malacothamnus fasciculatus var. nesioticus
© 2014 Steve Matson
Malacothamnus fasciculatus var. nesioticus
© 2014 Steve Matson

Malacothamnus helleri    Short-haired unfurled bushmallow
native
Shrub

MALVACEAE

Malacothamnus helleri
© 2017 Keir Morse
Malacothamnus helleri
© 2017 Keir Morse
Malacothamnus helleri
© 2019 Keir Morse

Malacothamnus palmeri var. involucratus    Carmel Valley bushmallow
native
Shrub

MALVACEAE

Malacothamnus palmeri var. involucratus
© 2017 Keir Morse
Malacothamnus palmeri var. involucratus
© 2017 Keir Morse
Malacothamnus palmeri var. involucratus
© 2017 Keir Morse

Malacothamnus jonesii    Jones's bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus jonesii
© 2012 Terrence Gosliner
Malacothamnus jonesii
© 2017 Keir Morse
Malacothamnus jonesii
© 2017 Keir Morse

Malacothamnus gracilis    Huasna bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus gracilis
© 2017 Keir Morse
Malacothamnus gracilis
© 2017 Keir Morse
Malacothamnus gracilis
© 2018 Keir Morse

Malacothamnus palmeri var. lucianus    Santa Lucia bushmallow
native
Shrub

MALVACEAE

Malacothamnus palmeri var. lucianus
© 2018 dave nelson
Malacothamnus palmeri var. lucianus
© 2018 Angelique Herman
Malacothamnus palmeri var. lucianus
© 2018 dave nelson

Malacothamnus mendocinensis    Mendocino bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus mendocinensis
© 2023 Jim Xerogeanes
Malacothamnus mendocinensis
© 2023 Jim Xerogeanes
Malacothamnus mendocinensis
© 2023 Jim Xerogeanes

Malacothamnus palmeri var. palmeri    Palmer's bushmallow,  Cambria bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus palmeri var. palmeri
© 2024 Mike Russler
Malacothamnus palmeri var. palmeri
© 2022 Keir Morse
Malacothamnus palmeri var. palmeri
© 2024 Mike Russler

Malacothamnus parishii    Parish's bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus parishii
© 2024 Ron Vanderhoff
Malacothamnus parishii
© 2024 Ron Vanderhoff
Malacothamnus parishii
© 2024 Ron Vanderhoff

Malacothrix foliosa ssp. crispifolia    Petite desertdandelion
rare native
Annual herb

ASTERACEAE


Malacothrix foliosa ssp. foliosa    Leafy desertdandelion
rare native
Annual herb

ASTERACEAE

Malacothrix foliosa ssp. foliosa
© 2011 Dylan Neubauer
Malacothrix foliosa ssp. foliosa
© 2011 Neal Kramer
Malacothrix foliosa ssp. foliosa
© 2011 Neal Kramer

Malacothrix foliosa ssp. philbrickii    Philbrick's desertdandelion
rare native
Annual herb

ASTERACEAE


Malacothrix foliosa ssp. polycephala    Manyhead desertdandelion
rare native
Annual herb

ASTERACEAE

Malacothrix foliosa ssp. polycephala
© 2012 Gary A. Monroe
Malacothrix foliosa ssp. polycephala
© 2012 Gary A. Monroe
Malacothrix foliosa ssp. polycephala
© 2012 Gary A. Monroe

Malacothrix incana    Dunedelion
rare native
Perennial herb

ASTERACEAE

Malacothrix incana
© 2020 David Greenberger
Malacothrix incana
© 2024 Mike Russler
Malacothrix incana
© 2006 Steve Matson

Malacothrix indecora    Santa cruz island cliff aster,  Santa cruz island desertdandelion,  Santa cruz island malacothrix
rare native
Annual herb

ASTERACEAE

Malacothrix indecora
© 2002 Dieter Wilken
Malacothrix indecora
© 2002 Dieter Wilken

Malacothrix junakii    Junak's desertdandelion
rare native
Annual herb

ASTERACEAE


Malacothrix phaeocarpa    Central coast malacothrix,  Davis' desertdandelion
rare native
Annual herb

ASTERACEAE

Malacothrix phaeocarpa
© 2019 Adonis Tate
Malacothrix phaeocarpa
© 2019 Adonis (Don) Tate
Malacothrix phaeocarpa
© 2019 Adonis (Don) Tate

Malacothrix saxatilis var. arachnoidea    Carmel valley cliff aster,  Cliff desertdandelion
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Malacothrix saxatilis var. arachnoidea
© 2024 Mike Russler
Malacothrix saxatilis var. arachnoidea
© 2019 Adonis Tate
Malacothrix saxatilis var. arachnoidea
© 2024 Mike Russler

Malacothrix saxatilis var. saxatilis    Cliff aster,  Cliff desertdandelion
rare native
Perennial herb

ASTERACEAE

Malacothrix saxatilis var. saxatilis
© 2021 Ron Vanderhoff
Malacothrix saxatilis var. saxatilis
© 2021 Ron Vanderhoff
Malacothrix saxatilis var. saxatilis
© 2021 Ron Vanderhoff

Malacothrix similis    Mexican malacothrix,  Twin desertdandelion
rare native
Annual herb

ASTERACEAE


Malacothrix squalida    Island malacothrix,  Santa cruz desertdandelion
rare native
Annual herb

ASTERACEAE


Malaxis monophyllos var. brachypoda    White bog adder's-mouth
rare native
Perennial herb (bulb)

ORCHIDACEAE

Malaxis monophyllos var. brachypoda
© 2012 Duncan S. Bell
Malaxis monophyllos var. brachypoda
© 2016 Adrienne Simmons
Malaxis monophyllos var. brachypoda
© 2016 Adrienne Simmons

Malperia tenuis    Brown turbans,  Brownturbans
rare native
Annual herb

ASTERACEAE

Malperia tenuis
© 2020 David Greenberger
Malperia tenuis
© 2010 Larry Sward
Malperia tenuis
© 2010 Neal Kramer

Mammillaria grahamii var. grahamii    Graham's fishhook cactus
rare native
Shrub (stem succulent)

CACTACEAE

Mammillaria grahamii var. grahamii
© 2008 Christopher L. Christie
Mammillaria grahamii var. grahamii
© 2008 Christopher L. Christie
Mammillaria grahamii var. grahamii
© 2008 Christopher L. Christie

Marina orcuttii var. orcuttii    California marina
rare native
Perennial herb

FABACEAE

Marina orcuttii var. orcuttii
© 2013 Keir Morse
Marina orcuttii var. orcuttii
© 2013 Keir Morse
Marina orcuttii var. orcuttii
© 2013 Keir Morse

Matelea parvifolia    Spearleaf
rare native
Perennial herb

APOCYNACEAE

Matelea parvifolia
© 2019 Matt Berger
Matelea parvifolia
© 2014 Keir Morse
Matelea parvifolia
© 2014 Keir Morse

Maurandella antirrhiniflora    Roving sailor
rare native
Perennial herb

PLANTAGINACEAE

Maurandella antirrhiniflora
© 2010 James M. Andre
Maurandella antirrhiniflora
© 2003 Charles E. Jones
Maurandella antirrhiniflora
© 2019 Belinda Lo

Meconella oregana    White fairypoppy
rare native
Annual herb

PAPAVERACEAE

Meconella oregana
© 2022 R.A. Chasey
Meconella oregana
© 2022 R.A. Chasey
Meconella oregana
© 2021 R.A. Chasey

Meesia longiseta    Long seta hump moss
rare native
Moss

MEESIACEAE


Meesia triquetra    Meesia moss
rare native
Moss

MEESIACEAE

Meesia triquetra
© 2008 Steve Matson
Meesia triquetra
© 2023 Matt Berger
Meesia triquetra
© 2023 Matt Berger

Meesia uliginosa    Meesia moss
rare native
Moss

MEESIACEAE

Meesia uliginosa
© 2013 Scot Loring
Meesia uliginosa
© 2023 Matt Berger
Meesia uliginosa
© 2023 Matt Berger

Melica spectabilis    Purple onion grass,  Purple oniongrass
rare native
Perennial grass (rhizomatous)

POACEAE

Melica spectabilis
© 2009 Trent M. Draper
Melica spectabilis
© 2011 Steve Matson

Menodora scabra    Rough desert olive,  Rough menodora
native
Shrub

OLEACEAE

Menodora scabra
© 2005 James M. Andre
Menodora scabra
© 2004 James M. Andre
Menodora scabra
© 2010 Lee Dittmann

Menodora scabra var. scabra    Rough desert olive
rare native
Shrub

OLEACEAE

Menodora scabra var. scabra
© 2012 James M. Andre
Menodora scabra var. scabra
© 2012 James M. Andre

rare native
Shrub

OLEACEAE

Menodora spinescens var. mohavensis
© 2020 Matt Berger
Menodora spinescens var. mohavensis
© 2020 Matt Berger
Menodora spinescens var. mohavensis
© 2020 Matt Berger

Mentzelia eremophila    Pinyon blazing star,  Pinyon blazingstar
rare native
Annual, Perennial herb

LOASACEAE

Mentzelia eremophila
© 2023 Mike Russler
Mentzelia eremophila
© 2023 Ryan O'Dell
Mentzelia eremophila
© 2023 Mike Russler

Mentzelia hirsutissima    Hairy blazingstar,  Hairy stickleaf
rare native
Annual herb

LOASACEAE

Mentzelia hirsutissima
© 2023 Eric Koberle
Mentzelia hirsutissima
© 2019 Matt Berger
Mentzelia hirsutissima
© 2010 Jasmine J. Watts

Mentzelia inyoensis    Inyo blazing star,  Inyo blazingstar
rare native
Annual herb

LOASACEAE

Mentzelia inyoensis
© 2019 Steve Matson
Mentzelia inyoensis
© 2019 Steve Matson
Mentzelia inyoensis
© 2019 Steve Matson

Mentzelia monoensis    Mono craters blazing star
rare native
Annual herb

LOASACEAE

Mentzelia monoensis
© 2024 Mike Russler
Mentzelia monoensis
© 2024 Mike Russler
Mentzelia monoensis
© 2024 Mike Russler

Mentzelia polita    Elegant blazing star,  Polished blazingstar
rare native
Annual herb

LOASACEAE

Mentzelia polita
© 2010 James M. Andre
Mentzelia polita
© 2008 Steve Matson
Mentzelia polita
© 2010 James M. Andre

Mentzelia pterosperma    Wing seed blazing star,  Wingseed blazingstar
rare native
Annual herb

LOASACEAE

Mentzelia pterosperma
© 2006 Trent M. Draper
Mentzelia pterosperma
© 2006 Trent M. Draper
Mentzelia pterosperma
© 2006 Trent M. Draper

Mentzelia puberula    Argus blazing star
rare native
Perennial herb

LOASACEAE

Mentzelia puberula
© 2019 Matt Berger
Mentzelia puberula
© 2019 Matt Berger
Mentzelia puberula
© 2019 Matt Berger

Mentzelia torreyi    Torrey's blazing star,  Torrey's blazingstar
rare native
Perennial herb

LOASACEAE

Mentzelia torreyi
© 2022 R.A. Chasey
Mentzelia torreyi
© 2023 Mike Russler
Mentzelia torreyi
© 2019 Matt Berger

Mentzelia tricuspis    Spinyhair blazingstar,  Three pointed blazing star
rare native
Annual herb

LOASACEAE

Mentzelia tricuspis
© 2019 Rico Ramirez
Mentzelia tricuspis
© 2005 James M. Andre
Mentzelia tricuspis
© 2010 James M. Andre

Mentzelia tridentata    Dentate blazing star,  Threetooth blazingstar
rare native
Annual herb

LOASACEAE

Mentzelia tridentata
© 2024 Eric Koberle
Mentzelia tridentata
© 2020 Matt Berger
Mentzelia tridentata
© 2024 Eric Koberle

Mertensia bella    Beautiful bluebells,  Oregon lungwort
rare native
Perennial herb

BORAGINACEAE

Mertensia bella
© 2024 Dana York
Mertensia bella
© 2008 Gerald Carr
Mertensia bella
© 2024 Dana York

Mertensia cusickii    Toiyabe bluebells
rare native
Perennial herb

BORAGINACEAE


Mertensia longiflora    Long flower bluebells,  Small bluebells
rare native
Perennial herb

BORAGINACEAE

Mertensia longiflora
© 2009 Matt Below
Mertensia longiflora
© 2020 Susan McDougall
Mertensia longiflora
© 2005 Christopher L. Christie

Mertensia oblongifolia var. amoena    Sagebrush bluebells
rare native
Perennial herb

BORAGINACEAE


Mertensia oblongifolia var. oblongifolia    Sagebrush bluebells
rare native
Perennial herb

BORAGINACEAE


Micranthes howellii    Howell's saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Micranthes howellii
© 2024 Steve Conger
Micranthes howellii
© 2023 Dana York
Micranthes howellii
© 2024 Mary Ann Machi

Micranthes marshallii    Marshall's saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Micranthes marshallii
© 2022 Dana York
Micranthes marshallii
© 2017 Barrett Jeffery
Micranthes marshallii
© 2017 Barrett Jeffery

Micromonolepis pusilla    Dwarf monolepis
rare native
Annual herb

CHENOPODIACEAE

Micromonolepis pusilla
© 1998 Dan Post
Micromonolepis pusilla
© 2007 Steve Matson
Micromonolepis pusilla
© 2007 Steve Matson

Micropus amphibolus    Mount diablo cottonseed,  Mt. diablo cottonweed
rare native
Annual herb

ASTERACEAE

Micropus amphibolus
© 2023 R.A. Chasey
Micropus amphibolus
© 2022 R.A. Chasey
Micropus amphibolus
© 2017 Tim Hyland

Microseris borealis    Apargidium,  Bog microseris,  Northern microseris
rare native
Perennial herb

ASTERACEAE

Microseris borealis
© Gerald and Buff Corsi 2013 California Academy of Sciences
Microseris borealis
© 2014 Wynn Anderson
Microseris borealis
© 2014 Wynn Anderson

Microseris douglasii ssp. platycarpha    Douglas' silverpuffs,  Small flowered microseris
rare native
Annual herb

ASTERACEAE

Microseris douglasii ssp. platycarpha
© 2017 Barbara Boethling
Microseris douglasii ssp. platycarpha
© 2017 Tania Asef
Microseris douglasii ssp. platycarpha
© 2017 Barbara Boethling

Microseris laciniata ssp. detlingii    Detling's silverpuffs
rare native
Perennial herb

ASTERACEAE

Microseris laciniata ssp. detlingii
© 2018 Scot Loring
Microseris laciniata ssp. detlingii
© 2022 Joe Broberg
Microseris laciniata ssp. detlingii
© 2018 Scot Loring

Microseris paludosa    Marsh scorzonella,  Marsh silverpuffs
rare native
Perennial herb

ASTERACEAE

Microseris paludosa
© 2023 R.A. Chasey
Microseris paludosa
© 2022 Irene Rosen
Microseris paludosa
© 2023 Mary Conway

Microseris sylvatica    Sylvan scorzonella
rare native
Perennial herb

ASTERACEAE

Microseris sylvatica
© 2020 Mike Russler
Microseris sylvatica
© 2023 Mike Russler
Microseris sylvatica
© 2023 Mike Russler

Mielichhoferia elongata    Elongate copper moss
rare native
Moss

MNIACEAE

Mielichhoferia elongata
© 2012 John Game
Mielichhoferia elongata
© 2012 calbryos group

Mielichhoferia mielichhoferiana    Mielichhof's copper moss
rare native
Moss

MNIACEAE


Mielichhoferia shevockii    Shevock's copper moss
rare native
Moss

MIELICHHOFERIACEAE

Mielichhoferia shevockii
© © 2017 John Game
Mielichhoferia shevockii
© 2017 John Game
Mielichhoferia shevockii
© 2017 John Game

Mimulus flemingii    Island bush monkeyflower
rare native
Shrub

PHRYMACEAE

Mimulus flemingii
© 2014 Steve Matson
Mimulus flemingii
© 2012 Neal Kramer
Mimulus flemingii
© 2003 Keir Morse

Mimulus rattanii ssp. decurtatus    Santa cruz county monkeyflower
rare native
Annual herb

PHRYMACEAE

Mimulus rattanii ssp. decurtatus
© 2018 Barry Thomson
Mimulus rattanii ssp. decurtatus
© 2001 Steve Schoenig

Mimulus subsecundus    One sided monkeyflower,  Onesided monkeyflower
rare native
Annual herb

PHRYMACEAE

Mimulus subsecundus
© 2009 Barry Breckling
Mimulus subsecundus
© 2009 Barry Breckling

Minuartia obtusiloba    Alpine sandwort,  Twinflower sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Minuartia obtusiloba
© 2014 Steve Matson
Minuartia obtusiloba
© 2010 Steve Matson
Minuartia obtusiloba
© 2014 Steve Matson

Mirabilis coccinea    Red four o'clock,  Scarlet four o'clock
rare native
Perennial herb

NYCTAGINACEAE

Mirabilis coccinea
© 2005 James M. Andre
Mirabilis coccinea
© 2014 Aaron Schusteff
Mirabilis coccinea
© 2014 Aaron Schusteff

Mirabilis greenei    Greene's four o'clock
rare native
Perennial herb

NYCTAGINACEAE

Mirabilis greenei
© 2024 Justin Chappelle
Mirabilis greenei
© 2024 Justin Chappelle
Mirabilis greenei
© 2024 Justin Chappelle

Mirabilis tenuiloba    Longlobe four o'clock,  Slender lobed four o'clock
rare native
Perennial herb

NYCTAGINACEAE

Mirabilis tenuiloba
© 2020 David Greenberger
Mirabilis tenuiloba
© 2017 Keir Morse
Mirabilis tenuiloba
© 2017 Keir Morse

Mitellastra caulescens    Leafy-stemmed mitrewort
rare native
Perennial herb

SAXIFRAGACEAE

Mitellastra caulescens
© 2017 Steve Matson
Mitellastra caulescens
© 2017 Steve Matson
Mitellastra caulescens
© 2017 Steve Matson

Mobergia calculiformis    Light gray lichen
rare native
Lichen

PHYSCIACEAE

Mobergia calculiformis
© Kipp Metzger

Monarda pectinata    Bee balm,  Pony beebalm
rare native
Annual herb

LAMIACEAE

Monarda pectinata
© 2013 Trent M. Draper
Monarda pectinata
© 2013 Trent M. Draper
Monarda pectinata
© 2013 Trent M. Draper

Monardella antonina ssp. antonina    San antonio hills monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella antonina ssp. antonina
© 2009 Keir Morse
Monardella antonina ssp. antonina
© 2012 Gary McDonald
Monardella antonina ssp. antonina
© 2006 Dr. Mark S. Brunell

Monardella antonina ssp. benitensis    San Benito monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella antonina ssp. benitensis
© 2021 Ken Lunders
Monardella antonina ssp. benitensis
© suelindner
Monardella antonina ssp. benitensis
© 2012 Terrence Gosliner

Monardella australis ssp. cinerea    Gray monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella australis ssp. cinerea
© 2019 Aaron Echols
Monardella australis ssp. cinerea
© 2019 Aaron Echols
Monardella australis ssp. cinerea
© 2019 Aaron Echols

Monardella australis ssp. jokerstii    Jokerst's monardella
rare native
Perennial herb

LAMIACEAE

Monardella australis ssp. jokerstii
© 2019 Aaron Echols
Monardella australis ssp. jokerstii
© 2019 Aaron Echols
Monardella australis ssp. jokerstii
© 2019 Aaron Echols

Monardella beneolens    Sweet smelling monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella beneolens
© 2020 Matt Berger
Monardella beneolens
© 2020 Matt Berger
Monardella beneolens
© 2020 Matt Berger

Monardella boydii    Boyd's monardella
rare native
Annual herb

LAMIACEAE


Monardella candicans    Sierra monardella
rare native
Annual herb

LAMIACEAE

Monardella candicans
© 2023 Chloe and Trevor Van Loon
Monardella candicans
© 2023 Chloe and Trevor Van Loon
Monardella candicans
© 2023 Chloe and Trevor Van Loon

Monardella eremicola    Clark mountain monardella
rare native
Annual herb

LAMIACEAE

Monardella eremicola
© 2024 Chloe and Trevor Van Loon
Monardella eremicola
© 2024 Chloe and Trevor Van Loon
Monardella eremicola
© 2024 Chloe and Trevor Van Loon

Monardella follettii    Follett's monardella
rare native
Shrub

LAMIACEAE

Monardella follettii
© 2020 Cheryl Ballantyne
Monardella follettii
© 2020 Cheryl Ballantyne
Monardella follettii
© 2019 David Greenberger

Monardella hypoleuca ssp. hypoleuca    Thickleaf monardella,  White leaf monardella
rare native
Perennial herb

LAMIACEAE

Monardella hypoleuca ssp. hypoleuca
© 2020 Bryant Baker
Monardella hypoleuca ssp. hypoleuca
© 2020 Bryant Baker
Monardella hypoleuca ssp. hypoleuca
© 2023 Keir Morse

Monardella hypoleuca ssp. intermedia    White leaf monardella
rare native
Perennial herb

LAMIACEAE

Monardella hypoleuca ssp. intermedia
© 2019 Manzanita Dictionary
Monardella hypoleuca ssp. intermedia
© 2023 Ron Vanderhoff
Monardella hypoleuca ssp. intermedia
© 2016 Ron Vanderhoff

Monardella hypoleuca ssp. lanata    Felt leaved monardella,  Feltleaf monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella hypoleuca ssp. lanata
© 2021 Ron Vanderhoff
Monardella hypoleuca ssp. lanata
© 2021 Ron Vanderhoff
Monardella hypoleuca ssp. lanata
© 2017 Michelle Tollett

Monardella leucocephala    Merced monardella
rare native
Annual herb

LAMIACEAE

Monardella leucocephala
© 2020 Hannah Kang
Monardella leucocephala
© 2020 Hannah Kang

Monardella linoides ssp. oblonga    Flax like monardella,  Flaxleaf monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella linoides ssp. oblonga
© 2011 Keir Morse
Monardella linoides ssp. oblonga
© 2011 Keir Morse
Monardella linoides ssp. oblonga
© 2011 Keir Morse

Monardella macrantha ssp. hallii    Hall's monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella macrantha ssp. hallii
© 2019 Diane Etchison
Monardella macrantha ssp. hallii
© 2022 Aaron Echols
Monardella macrantha ssp. hallii
© 2022 Aaron Echols

Monardella nana ssp. leptosiphon    San felipe monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE


Monardella palmeri    Palmer's monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella palmeri
© 2001 CDFA
Monardella palmeri
© 2001 CDFA
Monardella palmeri
© 2024 richard mcneill

Monardella pringlei    Pringle's monardella
rare native
Annual herb

LAMIACEAE


Monardella robisonii    Robison's monardella,  Rock pennyroyal
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella robisonii
© 2008 James Andre
Monardella robisonii
© 2008 James Andre
Monardella robisonii
© 2008 James Andre

Monardella saxicola    Rock monardella
rare native
Subshrub

LAMIACEAE

Monardella saxicola
© 2004 Naomi Fraga

Monardella sinuata ssp. gerryi    Gerry's curly-leaved monardella
rare native
Annual herb

LAMIACEAE

Monardella sinuata ssp. gerryi
© 2024 Mark A Elvin
Monardella sinuata ssp. gerryi
© 2024 Mark A Elvin
Monardella sinuata ssp. gerryi
© 2024 Mark A Elvin

rare native
Annual herb

LAMIACEAE

Monardella sinuata ssp. nigrescens
© 2014 James Gonsman
Monardella sinuata ssp. nigrescens
© 2022 Charles Russell
Monardella sinuata ssp. nigrescens
© 2017 Adam Chasey

rare native
Annual herb

LAMIACEAE

Monardella sinuata ssp. sinuata
© 2016 John Moule
Monardella sinuata ssp. sinuata
© 2020 Melissa Mooney
Monardella sinuata ssp. sinuata
© 2017 Keir Morse

Monardella stebbinsii    Feather river monardella,  Stebbins's monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella stebbinsii
© 2019 David popp
Monardella stebbinsii
© 2006 Dr. Mark S. Brunell
Monardella stebbinsii
© 2024 Matt Berger

Monardella stoneana    Jennifer's monardella
rare native
Perennial herb

LAMIACEAE

Monardella stoneana
© 2010 Anna Bennett
Monardella stoneana
© 2010 Anna Bennett
Monardella stoneana
© 2010 Anna Bennett

Monardella undulata ssp. arguelloensis    Curly leaved monardella
rare native
Annual herb

LAMIACEAE

Monardella undulata ssp. arguelloensis
© 2012 CNPS, San Luis Obispo Chapter

Monardella undulata ssp. crispa    Crisp monardella
rare native
Annual herb

LAMIACEAE

Monardella undulata ssp. crispa
© 2012 Terrence Gosliner
Monardella undulata ssp. crispa
© Lyda Edge and CNPS
Monardella undulata ssp. crispa
© 1999 Christopher L. Christie

Monardella undulata ssp. undulata    San luis obispo monardella
rare native
Annual herb

LAMIACEAE

Monardella undulata ssp. undulata
© 2012 Terrence Gosliner
Monardella undulata ssp. undulata
© 2012 John Sayers
Monardella undulata ssp. undulata
© 1972 California Native Plant Society

Monardella venosa    Veiny monardella
rare native
Annual herb

LAMIACEAE

Monardella venosa
© 2020 David popp
Monardella venosa
© 2007 George W. Hartwell
Monardella venosa
© 2007 George W. Hartwell

Monardella viminea    Willowy monardella
rare native
Perennial herb

LAMIACEAE

Monardella viminea
© 2015 Keir Morse
Monardella viminea
© 2011 Anna Bennett
Monardella viminea
© 2011 CNPS, San Luis Obispo Chapter

Monardella viridis    Green monardella
rare native
Perennial herb

LAMIACEAE

Monardella viridis
© 2019 R.A. Chasey
Monardella viridis
© 2020 Paul Aigner
Monardella viridis
© 2020 Paul Aigner

Moneses uniflora    Oneflower wintergreen,  Single delight,  Woodnymph
rare native
Perennial herb

ERICACEAE

Moneses uniflora
© 2024 Steve Conger
Moneses uniflora
© 2024 Mary Ann Machi
Moneses uniflora
© 2024 Mary Ann Machi

Monolopia congdonii    San joaquin woollythreads
rare native
Annual herb

ASTERACEAE

Monolopia congdonii
© 2022 Mike Russler
Monolopia congdonii
© 2020 David Greenberger
Monolopia congdonii
© 2024 Ryan O'Dell

Monolopia gracilens    Woodland monolopia
rare native
Annual herb

ASTERACEAE

Monolopia gracilens
© 2015 Al Keuter
Monolopia gracilens
© 2023 R.A. Chasey
Monolopia gracilens
© 2019 Ken Hickman

Monotropa uniflora    Ghost pipe
rare native
Perennial herb (mycoparasitic)

ERICACEAE

Monotropa uniflora
© 2022 Mary Ann Machi
Monotropa uniflora
© 2019 Jonathan Lee
Monotropa uniflora
© 2022 Mary Ann Machi

Montia howellii    Howell's minerslettuce,  Howell's montia
rare native
Annual herb

MONTIACEAE

Montia howellii
© 2019 Jonathan Lee
Montia howellii
© 2015 Greg O'Connell
Montia howellii
© 2018 Greg O'Connell

Mortonia utahensis    Utah mortonia
rare native
Shrub

CELASTRACEAE

Mortonia utahensis
© 2019 Matt Berger
Mortonia utahensis
© 2020 Matt Berger
Mortonia utahensis
© 2019 Matt Berger

Mucronea californica    California spineflower
rare native
Annual herb

POLYGONACEAE

Mucronea californica
© 2020 David Greenberger
Mucronea californica
© 2023 Matt Berger
Mucronea californica
© 2023 Matt Berger

native
Perennial grass

POACEAE


Muhlenbergia appressa    Appressed muhly,  Devils canyon muhly
rare native
Annual grass

POACEAE

Muhlenbergia appressa
© 2006 Steve Matson
Muhlenbergia appressa
© 2006 Steve Matson
Muhlenbergia appressa
© 2006 Steve Matson

Muhlenbergia arsenei    Navajo muhly,  Tough muhly
rare native
Perennial grass (rhizomatous)

POACEAE

Muhlenbergia arsenei
© 2011 Steve Matson
Muhlenbergia arsenei
© 2011 Steve Matson

Muhlenbergia californica    California muhly
rare native
Perennial grass (rhizomatous)

POACEAE

Muhlenbergia californica
© 2021 Joy England
Muhlenbergia californica
© 2021 Joy England
Muhlenbergia californica
© 2021 Joy England

Muhlenbergia fragilis    Delicate muhly
rare native
Annual grass

POACEAE

Muhlenbergia fragilis
© 2011 Steve Matson
Muhlenbergia fragilis
© 2011 Steve Matson

Muhlenbergia jonesii    Jones' muhly,  Modoc muhly
rare native
Perennial grass

POACEAE

Muhlenbergia jonesii
© 2023 Matt Berger
Muhlenbergia jonesii
© 2011 Steve Matson
Muhlenbergia jonesii
© 2023 Matt Berger

Muhlenbergia pauciflora    Few flowered muhly,  New mexico muhly
rare native
Perennial grass (rhizomatous)

POACEAE

Muhlenbergia pauciflora
© 2011 Keir Morse
Muhlenbergia pauciflora
© 2011 Keir Morse
Muhlenbergia pauciflora
© 2011 Keir Morse

Muilla coronata    Crowned muilla
rare native
Perennial herb (bulb)

THEMIDACEAE

Muilla coronata
© 2022 Steve Matson
Muilla coronata
© 2022 Steve Matson
Muilla coronata
© 2022 Steve Matson

Munroa squarrosa    False buffalo grass
rare native
Annual grass

POACEAE

Munroa squarrosa
© 2011 Keir Morse
Munroa squarrosa
© 2011 Keir Morse
Munroa squarrosa
© 2011 Keir Morse

Munzothamnus blairii    Blair's wirelettuce
rare native
Shrub

ASTERACEAE

Munzothamnus blairii
© 2011 Neal Kramer
Munzothamnus blairii
© 2018 Susan McDougall
Munzothamnus blairii
© 2011 Neal Kramer

Myosurus minimus ssp. apus    Little mouse tail
rare native
Annual herb

RANUNCULACEAE

Myosurus minimus ssp. apus
© Keir Morse
Myosurus minimus ssp. apus
© Keir Morse
Myosurus minimus ssp. apus
© 2021 Kipp Pow

Myrica hartwegii    Mountain wax myrtle,  Sierra bayberry,  Sierra sweet bay
rare native
Shrub

MYRICACEAE

Myrica hartwegii
© 2024 Matt Berger
Myrica hartwegii
© 2019 Matt Berger
Myrica hartwegii
© 2019 Matt Berger

Myriopteris wootonii    Wooton's lace fern
rare native
Perennial herb

PTERIDACEAE

Myriopteris wootonii
© 2010 James M. Andre
Myriopteris wootonii
© 2010 James M. Andre

Myurella julacea    Myurella moss
rare native
Moss

PTERIGYNANDRACEAE

Myurella julacea
© 2013 Scot Loring
Myurella julacea
© 2013 Scot Loring

Nama demissa var. covillei    Coville's Purplemat
rare native
Annual herb

NAMACEAE

Nama demissa var. covillei
© 2020 Matt Berger
Nama demissa var. covillei
© 2020 Matt Berger
Nama demissa var. covillei
© 2020 Matt Berger

Nama dichotoma var. dichotoma    Forked purple mat
rare native
Annual herb

NAMACEAE

Nama dichotoma var. dichotoma
© 2013 Don Davis
Nama dichotoma var. dichotoma
© 2011 James M. Andre
Nama dichotoma var. dichotoma
© 2011 Keir Morse

Nama stenocarpa    Mud nama
rare native
Annual herb

NAMACEAE

Nama stenocarpa
© 2017 Ron Vanderhoff
Nama stenocarpa
© 2021 Ron Vanderhoff
Nama stenocarpa
© 2021 Ron Vanderhoff

Nardia hiroshii    Hiroshi's flapwort
rare native
Liverwort

JUNGERMANNIACEAE


Nasturtium gambelii    Gambel's yellowcress
rare native
Perennial herb

BRASSICACEAE

Nasturtium gambelii
© 2010 Chris Winchell
Nasturtium gambelii
© 2010 Chris Winchell
Nasturtium gambelii
© 2010 Chris Winchell

Navarretia cotulifolia    Broad leaved navarretia,  Cotulaleaf pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia cotulifolia
© 2022 Hannah Aclufi
Navarretia cotulifolia
© 2023 R.A. Chasey
Navarretia cotulifolia
© 2023 R.A. Chasey

Navarretia eriocephala    Hoary navarretia,  Hoary pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia eriocephala
© 2016 Steve Matson
Navarretia eriocephala
© © 2016 Steve Matson
Navarretia eriocephala
© 2016 Steve Matson

Navarretia fossalis    Moran's navarretia,  Spreading navarretia,  Vernalpool pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia fossalis
© 2019 Jonathan Mercado
Navarretia fossalis
© 2024 Ron Vanderhoff
Navarretia fossalis
© 2019 Jacob Smith

Navarretia gowenii    Lime ridge navarretia
rare native
Perennial herb

POLEMONIACEAE

Navarretia gowenii
© 2018 R.A. Chasey
Navarretia gowenii
© 2018 R.A. Chasey
Navarretia gowenii
© 2008 John Game

Navarretia heterandra    Tehama navarretia,  Tehama pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia heterandra
© 2022 Scott Yarger
Navarretia heterandra
© 2022 Steve Laymon
Navarretia heterandra
© 2022 Steve Laymon

Navarretia jepsonii    Jepson's navarretia,  Jepson's pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia jepsonii
© 2020 John Game
Navarretia jepsonii
© 2019 Steve Matson
Navarretia jepsonii
© 2016 Steve Matson

Navarretia leucocephala ssp. bakeri    Baker's navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia leucocephala ssp. bakeri
© 2019 Hunter Breck
Navarretia leucocephala ssp. bakeri
© 2020 Tim Miller
Navarretia leucocephala ssp. bakeri
© 2019 Hunter Breck

Navarretia leucocephala ssp. pauciflora    Few flowered navarretia,  Fewflower navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia leucocephala ssp. pauciflora
© 2008 Steve Matson
Navarretia leucocephala ssp. pauciflora
© 2008 Steve Matson
Navarretia leucocephala ssp. pauciflora
© 2013 Jake Ruygt

Navarretia leucocephala ssp. plieantha    Many flowered navarretia,  Manyflowered navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia leucocephala ssp. plieantha
© 2019 Steve Matson
Navarretia leucocephala ssp. plieantha
© 2019 Steve Matson
Navarretia leucocephala ssp. plieantha
© 2019 Steve Matson

Navarretia linearifolia ssp. pinnatisecta    Pinnate-leaved navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia linearifolia ssp. pinnatisecta
© 2021 Charles Russell
Navarretia linearifolia ssp. pinnatisecta
© 2021 Charles Russell
Navarretia linearifolia ssp. pinnatisecta
© 2021 Charles Russell

Navarretia myersii ssp. deminuta    Myer's navarretia,  Myers' pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia myersii ssp. deminuta
© 2020 Leigh Johnson
Navarretia myersii ssp. deminuta
© 2020 Leigh Johnson
Navarretia myersii ssp. deminuta
© 2020 Leigh Johnson

Navarretia myersii ssp. myersii    Myers' pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia myersii ssp. myersii
© 2018 Doreen L. Smith
Navarretia myersii ssp. myersii
© 2005 Russell Huddleston
Navarretia myersii ssp. myersii
© 2003 Yulan Tong

rare native
Annual herb

POLEMONIACEAE

Navarretia nigelliformis ssp. nigelliformis
© 2024 Mike Russler
Navarretia nigelliformis ssp. nigelliformis
© 2017 Douglas Gordon-Blackwood
Navarretia nigelliformis ssp. nigelliformis
© 2024 Mike Russler

Navarretia nigelliformis ssp. radians    Adobe navarretia,  Shining navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia nigelliformis ssp. radians
© 2022 Steve Matson
Navarretia nigelliformis ssp. radians
© 2022 Steve Matson
Navarretia nigelliformis ssp. radians
© 2022 Steve Matson

Navarretia ojaiensis    Ojai navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia ojaiensis
© 2008 Michael Charters
Navarretia ojaiensis
© 2008 Michael Charters
Navarretia ojaiensis
© 2013 Anuja Parikh and Nathan Gale

Navarretia paradoxiclara    Navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia paradoxiclara
© 2019 David Greenberger
Navarretia paradoxiclara
© 2016 Leigh Johnson
Navarretia paradoxiclara
© 2016 Leigh Johnson

Navarretia paradoxinota    Navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia paradoxinota
© 2018 John Game
Navarretia paradoxinota
© 2017 John Game
Navarretia paradoxinota
© 2020 Tim Miller

Navarretia peninsularis    Baja navarretia,  Baja pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia peninsularis
© 2023 Martin Schenker
Navarretia peninsularis
© 2020 Jacob Smith
Navarretia peninsularis
© 2023 Martin Schenker

Navarretia prolifera ssp. lutea    Burr pincushionplant,  Yellow bur navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia prolifera ssp. lutea
© 2017 Robert Barnard
Navarretia prolifera ssp. lutea
© 2024 Mike Russler
Navarretia prolifera ssp. lutea
© 2024 Mike Russler

Navarretia prostrata    Prostrate navarretia,  Prostrate pincushionplant
rare native
Annual herb

POLEMONIACEAE

Navarretia prostrata
© 2017 Ron Vanderhoff
Navarretia prostrata
© 2017 Tania Asef
Navarretia prostrata
© 2023 Ron Vanderhoff

Navarretia rosulata    Marin county navarretia,  San anselmo navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia rosulata
© 2019 David Greenberger
Navarretia rosulata
© 2022 R.A. Chasey
Navarretia rosulata
© 2016 Richard Chasey

Navarretia setiloba    Paiute mountain pincushionplant,  Piute mtns. navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia setiloba
© 2023 Chloe and Trevor Van Loon
Navarretia setiloba
© 2023 Chloe and Trevor Van Loon
Navarretia setiloba
© 2023 Chloe and Trevor Van Loon

Navarretia subuligera    Awl leaf pincushionplant,  Awl leaved navarretia
rare native
Annual herb

POLEMONIACEAE

Navarretia subuligera
© 2022 David popp
Navarretia subuligera
© 2013 Jake Ruygt
Navarretia subuligera
© 1998 Dean Wm. Taylor

Nemacaulis denudata var. denudata    Coast woolly heads,  Cottonheads
rare native
Annual herb

POLYGONACEAE

Nemacaulis denudata var. denudata
© 2014 David Varner
Nemacaulis denudata var. denudata
© 2017 Keir Morse
Nemacaulis denudata var. denudata
© 2019 Keir Morse

Nemacaulis denudata var. gracilis    Cottonheads,  Slender woolly heads
rare native
Annual herb

POLYGONACEAE

Nemacaulis denudata var. gracilis
© 2010 Duncan S. Bell
Nemacaulis denudata var. gracilis
© 2013 James M. Andre
Nemacaulis denudata var. gracilis
© 2010 Duncan S. Bell

Nemacladus calcaratus    Chimney creek nemacladus
rare native
Annual herb

CAMPANULACEAE

Nemacladus calcaratus
© 2024 Bob Steele
Nemacladus calcaratus
© 2024 Bob Steele
Nemacladus calcaratus
© 2024 Bob Steele

Nemacladus gracilis    Slender nemacladus,  Slender threadplant
rare native
Annual herb

CAMPANULACEAE

Nemacladus gracilis
© 2010 Steve Matson
Nemacladus gracilis
© 2010 Steve Matson
Nemacladus gracilis
© 2010 Steve Matson

Nemacladus secundiflorus var. robbinsii    Robbins' nemacladus
rare native
Annual herb

CAMPANULACEAE

Nemacladus secundiflorus var. robbinsii
© 2022 Damon Tighe
Nemacladus secundiflorus var. robbinsii
© 2022 Damon Tighe
Nemacladus secundiflorus var. robbinsii
© 2022 Damon Tighe

Nemacladus secundiflorus var. secundiflorus    Large-flowered nemacladus
rare native
Annual herb

CAMPANULACEAE

Nemacladus secundiflorus var. secundiflorus
© 2008 Aaron Schusteff
Nemacladus secundiflorus var. secundiflorus
© 2008 Aaron Schusteff

Nemacladus twisselmannii    Twisselmann's nemacladus,  Twisselmann's threadplant
rare native
Annual herb

CAMPANULACEAE

Nemacladus twisselmannii
© 2012 Keir Morse
Nemacladus twisselmannii
© 2012 Keir Morse
Nemacladus twisselmannii
© 2012 Keir Morse

Nemophila breviflora    Basin nemophila,  Great basin nemophila
rare native
Annual herb

HYDROPHYLLACEAE

Nemophila breviflora
© 2011 RT Hawke
Nemophila breviflora
© 2011 RT Hawke

Nemophila parviflora var. quercifolia    Oak leaved nemophila,  Smallflower nemophila
rare native
Annual herb

HYDROPHYLLACEAE

Nemophila parviflora var. quercifolia
© 2015 Susan McDougall
Nemophila parviflora var. quercifolia
© 2021 Mike Russler
Nemophila parviflora var. quercifolia
© 2022 Eric Koberle

Neostapfia colusana    Colusa grass,  Colusagrass
rare native
Annual grass

POACEAE

Neostapfia colusana
© 2023 Charles Russell
Neostapfia colusana
© 2012 Aaron E. Sims
Neostapfia colusana
© 2024 Anton Bokisch

Neviusia cliftonii    Shasta snow wreath
rare native
Shrub

ROSACEAE

Neviusia cliftonii
© 2008 Steve Matson
Neviusia cliftonii
© 2008 Steve Matson
Neviusia cliftonii
© 2008 Steve Matson

Nitrophila mohavensis    Amargosa niterwort,  Amargosa nitrophila
rare native
Perennial herb

AMARANTHACEAE

Nitrophila mohavensis
© 2011 Duncan S. Bell
Nitrophila mohavensis
© 2016 Karen E. Tanner
Nitrophila mohavensis
© 2019 Cheryl Birker

Noccaea fendleri ssp. californica    Kneeland prairie pennycress
rare native
Perennial herb

BRASSICACEAE

Noccaea fendleri ssp. californica
© 2017 Steve Matson
Noccaea fendleri ssp. californica
© 2025 Mary Ann Machi
Noccaea fendleri ssp. californica
© 2017 Steve Matson

Nolina cismontana    Peninsular beargrass
rare native
Shrub

RUSCACEAE

Nolina cismontana
© 2020 Diane Etchison
Nolina cismontana
© 2019 Ron Vanderhoff
Nolina cismontana
© 2019 Hailey Laskey

Nolina interrata    Dehesa beargrass,  Dehesa nolina
rare native
Perennial herb

RUSCACEAE

Nolina interrata
© 2022 Alexander S. Kunz
Nolina interrata
© 2005 Deborah Leonard
Nolina interrata
© 2015 Brian Powell

Oenothera californica ssp. eurekensis    Eureka dunes evening primrose
rare native
Perennial herb (rhizomatous)

ONAGRACEAE

Oenothera californica ssp. eurekensis
© 2020 Matt Berger
Oenothera californica ssp. eurekensis
© 2023 richard mcneill
Oenothera californica ssp. eurekensis
© 2023 richard mcneill

Oenothera cavernae    Cavedwelling evening primrose
rare native
Perennial herb

ONAGRACEAE

Oenothera cavernae
© 2006 Arik Skromme
Oenothera cavernae
© 2008 Michael Charters
Oenothera cavernae
© 2008 James M. Andre

Oenothera cespitosa ssp. crinita    Cespitose evening-primrose
rare native
Perennial herb (rhizomatous)

ONAGRACEAE

Oenothera cespitosa ssp. crinita
© 2022 Ian Archer Winick
Oenothera cespitosa ssp. crinita
© 2017 Jim Morefield
Oenothera cespitosa ssp. crinita
© 2024 Dana York

Oenothera deltoides ssp. howellii    Antioch dunes evening primrose
rare native
Perennial herb

ONAGRACEAE

Oenothera deltoides ssp. howellii
© 2022 Marcus Tamura
Oenothera deltoides ssp. howellii
© 2023 Susan Euing
Oenothera deltoides ssp. howellii
© 2017 James Gorham

Oenothera longissima    Long evening primrose,  Longstem evening primrose
rare native
Perennial herb

ONAGRACEAE

Oenothera longissima
© 2024 Chloe and Trevor Van Loon
Oenothera longissima
© 2024 Chloe and Trevor Van Loon
Oenothera longissima
© 2024 Chloe and Trevor Van Loon

Oenothera wolfii    Wolf's evening primrose
rare native
Perennial herb

ONAGRACEAE

Oenothera wolfii
© 2024 Matt Berger
Oenothera wolfii
© 2024 Matt Berger
Oenothera wolfii
© 2024 Matt Berger

Ophioglossum californicum    California adder's tongue,  California adderstongue
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Ophioglossum californicum
© 2023 David Greenberger
Ophioglossum californicum
© 2023 R.A. Chasey
Ophioglossum californicum
© 2023 Ron Vanderhoff

Ophioglossum pusillum    Northern adder's tongue,  Northern adderstongue
rare native
Fern (rhizomatous)

OPHIOGLOSSACEAE

Ophioglossum pusillum
© 2019 Matt Berger
Ophioglossum pusillum
© 2024 Chloe Van Loon
Ophioglossum pusillum
© 2024 Chloe Van Loon

Opuntia basilaris var. brachyclada    Beavertail pricklypear,  Short joint beavertail
rare native
Shrub (stem succulent)

CACTACEAE

Opuntia basilaris var. brachyclada
© 2014 Matt Berger
Opuntia basilaris var. brachyclada
© 2019 Matt Berger
Opuntia basilaris var. brachyclada
© 2021 Sharon Estrada

Opuntia basilaris var. treleasei    Bakersfield cactus,  Trelease's beavertail pricklypear
rare native
Shrub (stem succulent)

CACTACEAE

Opuntia basilaris var. treleasei
© 2020 Mitchell Coleman
Opuntia basilaris var. treleasei
© 2020 Matt Berger
Opuntia basilaris var. treleasei
© 2020 Matt Berger

Opuntia fragilis    Brittle prickly pear,  Brittle pricklypear,  Pigmy tuna
rare native
Shrub (stem succulent)

CACTACEAE

Opuntia fragilis
© 2014 Robert L. Carr
Opuntia fragilis
© 2014 Robert L. Carr
Opuntia fragilis
© 2014 Robert L. Carr

Opuntia wigginsii    Wiggins' cholla,  Wiggins's cholla
rare native
Shrub (stem succulent)

CACTACEAE

Opuntia wigginsii
© 2010 Thomas Stoughton
Opuntia wigginsii
© 2004 James M. Andre
Opuntia wigginsii
© 2010 Malia Volke

Orcuttia californica    California orcutt grass
rare native
Annual grass

POACEAE

Orcuttia californica
© 2005 Jasmine J. Watts
Orcuttia californica
© 2013 Anna Bennett
Orcuttia californica
© 2005 Russell Huddleston

Orcuttia inaequalis    San joaquin valley orcutt grass
rare native
Annual grass

POACEAE

Orcuttia inaequalis
© 2023 Chloe and Trevor Van Loon
Orcuttia inaequalis
© 2023 Chloe and Trevor Van Loon
Orcuttia inaequalis
© 2022 Anton Bokisch

Orcuttia pilosa    Hairy orcutt grass
rare native
Annual grass

POACEAE

Orcuttia pilosa
© 2024 Chloe and Trevor Van Loon
Orcuttia pilosa
© 2024 Chloe and Trevor Van Loon
Orcuttia pilosa
© 2024 David popp

Orcuttia tenuis    Slender orcutt grass
rare native
Annual grass

POACEAE

Orcuttia tenuis
© 2020 Steve Laymon
Orcuttia tenuis
© 2023 Elizabeth Taylor
Orcuttia tenuis
© 2023 Elizabeth Taylor

Orcuttia viscida    Sacramento orcutt grass
rare native
Annual grass

POACEAE

Orcuttia viscida
© 2007 Carol W. Witham
Orcuttia viscida
© 2004 Carol W. Witham
Orcuttia viscida
© 2004 Carol W. Witham

Oreocarya roosiorum    bristlecone cryptantha
rare native
Perennial herb

BORAGINACEAE

Oreocarya roosiorum
© 2011 Steve Matson
Oreocarya roosiorum
© 2011 Steve Matson

Oreocarya schoolcraftii    Schoolcraft's cryptantha
rare native
Perennial herb

BORAGINACEAE

Oreocarya schoolcraftii
© 2012 Gerald Carr
Oreocarya schoolcraftii
© 2012 Gerald Carr
Oreocarya schoolcraftii
© 2012 Gerald Carr

Oreonana purpurascens    Purple mountain parsley,  Purple mountainparsley
rare native
Perennial herb

APIACEAE

Oreonana purpurascens
© 2018 Steve Matson
Oreonana purpurascens
© 2018 Steve Matson
Oreonana purpurascens
© 2018 Steve Matson

Oreonana vestita    Woolly mountain parsley,  Woolly mountainparsley
rare native
Perennial herb

APIACEAE

Oreonana vestita
© 2019 Matt Berger
Oreonana vestita
© 2019 Matt Berger
Oreonana vestita
© 2018 Jane Tirrell

Oreostemma elatum    Plumas alpine aster
rare native
Perennial herb

ASTERACEAE

Oreostemma elatum
© 2012 David popp
Oreostemma elatum
© 2018 Sierra Pacific Industries
Oreostemma elatum
© 2006 Dean Wm. Taylor, Ph.D.

Ornithostaphylos oppositifolia    Baja bird bush,  Baja california birdbush
rare native
Shrub

ERICACEAE

Ornithostaphylos oppositifolia
© 2023 Ron Vanderhoff
Ornithostaphylos oppositifolia
© 2024 Erin Bergman
Ornithostaphylos oppositifolia
© 2023 Ron Vanderhoff

Orobanche ludoviciana var. arenosa    Suksdorf's broom rape
rare native
Perennial herb

OROBANCHACEAE


Orobanche parishii ssp. brachyloba    Parish's broomrape,  Short lobed broom rape
rare native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche parishii ssp. brachyloba
© 2015 Paul Preston and Tim Lukaszewski
Orobanche parishii ssp. brachyloba
© 2015 Paul Preston

Orobanche valida ssp. howellii    Howell's broomrape
rare native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche valida ssp. howellii
© 1997 Dean Wm. Taylor
Orobanche valida ssp. howellii
© 2013 Jake Ruygt
Orobanche valida ssp. howellii
© 2011 Jake Ruygt

Orobanche valida ssp. valida    Rock creek broomrape
rare native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche valida ssp. valida
© 1999 Alison Colwell
Orobanche valida ssp. valida
© 1999 Alison Colwell
Orobanche valida ssp. valida
© 2010 California Academy of Sciences

Orthocarpus cuspidatus ssp. cuspidatus    Siskiyou mountain owl's clover,  Siskiyou mtns. orthocarpus
rare native
Annual herb

OROBANCHACEAE

Orthocarpus cuspidatus ssp. cuspidatus
© 2002 Dan Post
Orthocarpus cuspidatus ssp. cuspidatus
© 2005 Chris Wagner

Orthocarpus pachystachyus    Shasta orthocarpus,  Shasta owl's clover
rare native
Annual herb

OROBANCHACEAE

Orthocarpus pachystachyus
© 2025 Julie A. Kierstead
Orthocarpus pachystachyus
© 2025 Julie A. Kierstead
Orthocarpus pachystachyus
© 2025 Julie A. Kierstead

Orthotrichum holzingeri    Holzinger's orthotrichum moss
rare native
Moss

ORTHOTRICHACEAE

Orthotrichum holzingeri
© 2014 calbryos group
Orthotrichum holzingeri
© 2015 calbryos group
Orthotrichum holzingeri
© © 2013 calbryos group

Orthotrichum kellmanii    Kellman's bristle moss
rare native
Moss

ORTHOTRICHACEAE

Orthotrichum kellmanii
© © 2014 calbryos group

Orthotrichum spjutii    Spjut's bristle moss
rare native
Moss

ORTHOTRICHACEAE

Orthotrichum spjutii
© © 2015 calbryos group

Oryctes nevadensis    Nevada oryctes
rare native
Annual herb

SOLANACEAE

Oryctes nevadensis
© 2016 Steve Matson
Oryctes nevadensis
© 2016 Steve Matson
Oryctes nevadensis
© 2016 Steve Matson

Osmorhiza depauperata    Bluntseed sweetroot,  Little sweet cicely
rare native
Perennial herb

APIACEAE

Osmorhiza depauperata
© 2011 Jean Pawek
Osmorhiza depauperata
© 1995 Saint Mary's College of California

Oxalis suksdorfii    Suksdorf woodsorrel
rare native
Perennial herb

OXALIDACEAE

Oxalis suksdorfii
© 2020 Kolby Lundgren
Oxalis suksdorfii
© 2020 Kolby Lundgren
Oxalis suksdorfii
© 2019 Jonathan Lee

Oxytheca watsonii    Watson's oxytheca
rare native
Annual herb

POLYGONACEAE

Oxytheca watsonii
© 2020 Matt Berger
Oxytheca watsonii
© 2020 Matt Berger
Oxytheca watsonii
© 2020 Matt Berger

Oxytropis deflexa var. sericea    Blue nodding locoweed,  Blue pendent pod oxytrope
rare native
Perennial herb

FABACEAE

Oxytropis deflexa var. sericea
© 2015 Steve Matson
Oxytropis deflexa var. sericea
© 2015 Steve Matson
Oxytropis deflexa var. sericea
© 2015 Steve Matson

Oxytropis oreophila var. oreophila    Mountain oxytrope,  Round leaf loco weed
rare native
Perennial herb

FABACEAE

Oxytropis oreophila var. oreophila
© 2006 Trent M. Draper
Oxytropis oreophila var. oreophila
© 2006 Trent M. Draper
Oxytropis oreophila var. oreophila
© 2006 Trent M. Draper

Oxytropis parryi    Parry's loco weed,  Parry's oxytrope
rare native
Perennial herb

FABACEAE

Oxytropis parryi
© 2016 Steve Matson
Oxytropis parryi
© 2016 Steve Matson
Oxytropis parryi
© 2016 Steve Matson

Packera bernardina    San bernardino ragwort
rare native
Perennial herb

ASTERACEAE

Packera bernardina
© 2016 Diane Etchison
Packera bernardina
© 2018 Ron Vanderhoff
Packera bernardina
© 2023 Ryan O'Dell

Packera bolanderi var. bolanderi    Bolander's ragwort,  Seacoast ragwort
rare native
Perennial herb

ASTERACEAE

Packera bolanderi var. bolanderi
© 2009 Gerald Carr
Packera bolanderi var. bolanderi
© 2009 Gerald Carr
Packera bolanderi var. bolanderi
© 2009 Gerald Carr

Packera eurycephala var. lewisrosei    Lewis' groundsel
rare native
Perennial herb

ASTERACEAE

Packera eurycephala var. lewisrosei
© 2022 Ryan O'Dell
Packera eurycephala var. lewisrosei
© 2024 Matt Berger
Packera eurycephala var. lewisrosei
© 2024 Matt Berger

Packera ganderi    Gander's ragwort
rare native
Perennial herb

ASTERACEAE

Packera ganderi
© 2017 Keir Morse
Packera ganderi
© 2017 Keir Morse
Packera ganderi
© 2010 Anna Bennett

Packera hesperia    Western ragwort
rare native
Perennial herb

ASTERACEAE

Packera hesperia
© 2008 Keir Morse
Packera hesperia
© 2008 Keir Morse
Packera hesperia
© 2008 Keir Morse

Packera indecora    Elegant groundsel,  Rayless mountain ragwort
rare native
Perennial herb

ASTERACEAE

Packera indecora
© 2013 Kirsten Bovee
Packera indecora
© 2013 Kirsten Bovee
Packera indecora
© 2013 Kirsten Bovee

Packera ionophylla    Tehachapi ragwort
rare native
Perennial herb

ASTERACEAE

Packera ionophylla
© 2019 Matt Berger
Packera ionophylla
© 2019 Matt Berger
Packera ionophylla
© 2019 Matt Berger

Packera layneae    Layne's ragwort
rare native
Perennial herb

ASTERACEAE

Packera layneae
© 2020 Matt Berger
Packera layneae
© 2022 Charles Russell
Packera layneae
© 2021 Debra Ayres

Packera macounii    Siskiyou mountain ragwort
rare native
Perennial herb

ASTERACEAE

Packera macounii
© 2022 Ryan O'Dell
Packera macounii
© 2022 Ryan O'Dell
Packera macounii
© 2022 Ryan O'Dell

Palafoxia arida var. gigantea    Giant spanish needle
rare native
Annual, Perennial herb

ASTERACEAE

Palafoxia arida var. gigantea
© 2024 Mike Russler
Palafoxia arida var. gigantea
© 2024 Mike Russler
Palafoxia arida var. gigantea
© 2019 Matt Berger

Panicum acuminatum var. thermale    Geysers panicum
rare native
Perennial grass

POACEAE

Panicum acuminatum var. thermale
© 2019 Matt Berger
Panicum acuminatum var. thermale
© 2019 Matt Berger
Panicum acuminatum var. thermale
© 2019 Matt Berger

Panicum hirticaule ssp. hirticaule    Roughstalk witch grass
rare native
Annual grass

POACEAE

Panicum hirticaule ssp. hirticaule
© 2012 Keir Morse
Panicum hirticaule ssp. hirticaule
© 2012 Keir Morse
Panicum hirticaule ssp. hirticaule
© 2012 Keir Morse

Parkinsonia microphylla    Yellow paloverde
rare native
Tree, Shrub

FABACEAE

Parkinsonia microphylla
© 2022 Janith Johnson
Parkinsonia microphylla
© 2020 Jerzy Gronostalski
Parkinsonia microphylla
© 2023 Ryan O'Dell

Parnassia cirrata var. cirrata    San bernardino grass of parnassus
rare native
Perennial herb

PARNASSIACEAE

Parnassia cirrata var. cirrata
© 2021 Aaron Echols
Parnassia cirrata var. cirrata
© 2021 Joy England
Parnassia cirrata var. cirrata
© 2021 Aaron Echols

Parnassia cirrata var. intermedia    Cascade grass of parnassus
rare native
Perennial herb

PARNASSIACEAE

Parnassia cirrata var. intermedia
© 2024 Dana York
Parnassia cirrata var. intermedia
© 2023 Jim Xerogeanes
Parnassia cirrata var. intermedia
© 2023 Jim Xerogeanes

Parnassia parviflora    Small flower parnassia
rare native
Perennial herb

PARNASSIACEAE

Parnassia parviflora
© 2021 Steve Matson
Parnassia parviflora
© 2021 Steve Matson
Parnassia parviflora
© 2023 Chloe and Trevor Van Loon

Paronychia ahartii    Ahart's nailwort,  Ahart's paronychia
rare native
Annual herb

CARYOPHYLLACEAE

Paronychia ahartii
© 2025 Steve Matson
Paronychia ahartii
© 2023 Donald Burk
Paronychia ahartii
© 2025 Steve Matson

Pedicularis bracteosa var. flavida    Towering lousewort,  Yellowish lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis bracteosa var. flavida
© 2022 Dana York
Pedicularis bracteosa var. flavida
© 2022 Dana York
Pedicularis bracteosa var. flavida
© 2021 R.A. Chasey

Pedicularis centranthera    Dwarf lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis centranthera
© 2009 Lee Dittmann
Pedicularis centranthera
© 2012 Lee Dittmann
Pedicularis centranthera
© 2012 Lee Dittmann

Pedicularis contorta    Coiled lousewort,  Curved beak lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis contorta
© 2022 Dana York
Pedicularis contorta
© 2019 Richard Spjut
Pedicularis contorta
© 2021 R.A. Chasey

Pedicularis crenulata    Meadow lousewort,  Scalloped leaved lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis crenulata
© 2005 Steve Matson
Pedicularis crenulata
© 2005 Steve Matson
Pedicularis crenulata
© 2018 George Sherman

Pedicularis dudleyi    Dudley's lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis dudleyi
© 2020 Ron Weaver
Pedicularis dudleyi
© 2012 Terrence Gosliner
Pedicularis dudleyi
© 2020 Terrence Gosliner

Pedicularis howellii    Howell's lousewort
rare native
Perennial herb

OROBANCHACEAE

Pedicularis howellii
© 2019 Matt Berger
Pedicularis howellii
© 2024 Chloe Van Loon
Pedicularis howellii
© 2024 Chloe Van Loon

Pediomelum castoreum    Beaver indian breadroot
rare native
Perennial herb

FABACEAE

Pediomelum castoreum
© 2005 James M. Andre
Pediomelum castoreum
© 2005 James M. Andre
Pediomelum castoreum
© 2011 Teague Embrey

Thelypteris puberula var. sonorensis    Sonoran maiden fern
rare native
Fern

THELYPTERIDACEAE

Thelypteris puberula var. sonorensis
© 2020 Maisie Borg
Thelypteris puberula var. sonorensis
© 2020 Maisie Borg
Thelypteris puberula var. sonorensis
© 2020 Maisie Borg

Pellaea truncata    Cliff brake,  Spiny cliffbrake
rare native
Fern (rhizomatous)

PTERIDACEAE

Pellaea truncata
© 2011 Keir Morse
Pellaea truncata
© 2011 Keir Morse
Pellaea truncata
© 2011 Keir Morse

Peltigera gowardii    Western waterfan lichen
rare native
Lichen

PELTIGERACEAE

Peltigera gowardii
© Connor Dooley
Peltigera gowardii
© 2014 Eric B. Peterson
Peltigera gowardii
© 2018 Julie Kierstead Nelson

Penstemon albomarginatus    White margined beardtongue,  Whitemargin beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon albomarginatus
© 2019 Sonie Sampson
Penstemon albomarginatus
© 2019 Sonie Sampson
Penstemon albomarginatus
© 2019 Sonie Sampson

Penstemon barnebyi    Barneby's beardtongue,  White river valley beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon barnebyi
© 2006 James M. Andre
Penstemon barnebyi
© 2006 James M. Andre

Penstemon bicolor ssp. roseus    Pinto beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon bicolor ssp. roseus
© 2006 Rich Crawford
Penstemon bicolor ssp. roseus
© 2013 Cindy Hopkins
Penstemon bicolor ssp. roseus
© 2013 Xeric Specialties

Penstemon calcareus    Limestone beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon calcareus
© 2017 Steve Matson
Penstemon calcareus
© 2017 Steve Matson
Penstemon calcareus
© 2017 Steve Matson

Penstemon californicus    California beardtongue,  California penstemon
rare native
Perennial herb

PLANTAGINACEAE

Penstemon californicus
© 2019 Matt Berger
Penstemon californicus
© 2019 Matt Berger
Penstemon californicus
© 2024 Erin Bergman

Penstemon cinereus    Gray beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon cinereus
© 2020 Julie A. Kierstead
Penstemon cinereus
© 2020 Julie A. Kierstead
Penstemon cinereus
© 2020 Julie A. Kierstead

Penstemon cinicola    Ash beardtongue,  Ash penstemon
rare native
Perennial herb

PLANTAGINACEAE

Penstemon cinicola
© 2020 Steve Matson
Penstemon cinicola
© 2020 Steve Matson
Penstemon cinicola
© 2020 Steve Matson

Penstemon clevelandii var. connatus    San Jacinto beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon clevelandii var. connatus
© 2019 Matt Berger
Penstemon clevelandii var. connatus
© 2019 Matt Berger
Penstemon clevelandii var. connatus
© 2019 Matt Berger

Penstemon filiformis    Thread leaved beardtongue,  Threadleaf beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon filiformis
© 2015 Steve Matson
Penstemon filiformis
© 2019 Julie Kierstead Nelson
Penstemon filiformis
© 2015 Steve Matson

Penstemon fruticiformis var. amargosae    Death valley beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon fruticiformis var. amargosae
© 2017 Steve Matson
Penstemon fruticiformis var. amargosae
© 2017 Steve Matson
Penstemon fruticiformis var. amargosae
© 2017 Steve Matson

Penstemon heterodoxus var. shastensis    Shasta beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon heterodoxus var. shastensis
© 2024 Dana York
Penstemon heterodoxus var. shastensis
© 2024 Dana York
Penstemon heterodoxus var. shastensis
© 2024 Dana York

Penstemon janishiae    Antelope valley beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon janishiae
© 2005 Christopher L. Christie
Penstemon janishiae
© 2006 Gary A. Monroe
Penstemon janishiae
© 2018 Sierra Pacific Industries

Penstemon newberryi var. sonomensis    Sonoma beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon newberryi var. sonomensis
© 2016 David Greenberger
Penstemon newberryi var. sonomensis
© 2020 Tim Miller
Penstemon newberryi var. sonomensis
© 2018 Jennifer Riddell

Penstemon pahutensis    Pahute beardtongue,  Paiute beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon pahutensis
© 2023 Chloe and Trevor Van Loon
Penstemon pahutensis
© 2023 Chloe and Trevor Van Loon
Penstemon pahutensis
© 2023 Chloe and Trevor Van Loon

Penstemon papillatus    Inyo beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon papillatus
© 2012 Steve Matson
Penstemon papillatus
© 2014 Steve Matson
Penstemon papillatus
© 2012 Steve Matson

Penstemon personatus    Closed throated beardtongue,  Closethroat beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon personatus
© 2019 Matt Berger
Penstemon personatus
© 2019 Matt Berger
Penstemon personatus
© 2019 David popp

rare native
Perennial herb

PLANTAGINACEAE

Penstemon pseudospectabilis ssp. pseudospectabilis
© 2019 Belinda Lo
Penstemon pseudospectabilis ssp. pseudospectabilis
© 2009 Christopher L. Christie
Penstemon pseudospectabilis ssp. pseudospectabilis
© 2019 Belinda Lo

Penstemon rattanii var. kleei    Santa cruz mtns. beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon rattanii var. kleei
© 2024 William Blaker
Penstemon rattanii var. kleei
© 2024 William Blaker
Penstemon rattanii var. kleei
© 2024 William Blaker

Penstemon scapoides    Pinyon beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon scapoides
© 2009 Steve Matson
Penstemon scapoides
© 2010 Steve Matson
Penstemon scapoides
© 2009 Steve Matson

Penstemon stephensii    Stephen's penstemon,  Stephens' penstemon,  Stephens's beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon stephensii
© 2011 Shannon Henke
Penstemon stephensii
© 2011 Duncan S. Bell
Penstemon stephensii
© 2005 James M. Andre

Penstemon sudans    Susanville beardtongue,  Volcanic beardtongue
rare native
Shrub (stem succulent)

PLANTAGINACEAE

Penstemon sudans
© 2019 David Greenberger
Penstemon sudans
© 2019 Matt Berger
Penstemon sudans
© 2019 Matt Berger

Penstemon thompsoniae    Thompson's beardtongue
rare native
Perennial herb

PLANTAGINACEAE

Penstemon thompsoniae
© 2005 James M. Andre
Penstemon thompsoniae
© 2006 Trent M. Draper
Penstemon thompsoniae
© 2013 James M. Andre

Penstemon thurberi    Thurber penstemon,  Thurber's beardtongue,  Thurber's penstemon
rare native
Perennial herb

PLANTAGINACEAE

Penstemon thurberi
© 2005 Keir Morse
Penstemon thurberi
© 2005 Keir Morse
Penstemon thurberi
© 2005 Keir Morse

Penstemon tracyi    Tracy's beardtongue,  Trinity penstemon
rare native
Perennial herb

PLANTAGINACEAE

Penstemon tracyi
© 2019 John Game
Penstemon tracyi
© 2020 Christian Schwarz
Penstemon tracyi
© 2020 Christian Schwarz

Penstemon utahensis    Utah penstemon
rare native
Perennial herb

PLANTAGINACEAE

Penstemon utahensis
© 2008 Steve Matson
Penstemon utahensis
© 2008 Steve Matson
Penstemon utahensis
© 2008 Steve Matson

Pentachaeta aurea ssp. allenii    Allen's daisy
rare native
Annual herb

ASTERACEAE

Pentachaeta aurea ssp. allenii
© 2022 Ron Vanderhoff
Pentachaeta aurea ssp. allenii
© 2022 Ron Vanderhoff
Pentachaeta aurea ssp. allenii
© 2022 Ron Vanderhoff

Pentachaeta aurea ssp. aurea    Golden chaetopappa
rare native
Perennial herb

ASTERACEAE

Pentachaeta aurea ssp. aurea
© 2013 Keir Morse
Pentachaeta aurea ssp. aurea
© 2013 Keir Morse
Pentachaeta aurea ssp. aurea
© 2013 Keir Morse

Pentachaeta bellidiflora    White rayed pentachaeta,  Whiteray pygmydaisy
rare native
Annual herb

ASTERACEAE

Pentachaeta bellidiflora
© 2004 Toni Corelli
Pentachaeta bellidiflora
© 2004 Toni Corelli
Pentachaeta bellidiflora
© 2004 Toni Corelli

Pentachaeta exilis ssp. aeolica    Meager pygmydaisy,  Slender pentachaeta
rare native
Annual herb

ASTERACEAE

Pentachaeta exilis ssp. aeolica
© 2024 John Rawlings
Pentachaeta exilis ssp. aeolica
© 2022 Mike Russler
Pentachaeta exilis ssp. aeolica
© 2025 R.A. Chasey

Pentachaeta fragilis    Fragile pygmy daisy,  Fragile pygmydaisy
rare native
Annual herb

ASTERACEAE

Pentachaeta fragilis
© 2020 Matt Berger
Pentachaeta fragilis
© 2017 Neal Kramer
Pentachaeta fragilis
© 2017 Neal Kramer

Pentachaeta lyonii    Lyon's pentachaeta,  Lyon's pygmydaisy
rare native
Annual herb

ASTERACEAE

Pentachaeta lyonii
© 2021 Maisie Borg
Pentachaeta lyonii
© 2025 Jacob A
Pentachaeta lyonii
© 2021 Maisie Borg

Perideridia bacigalupii    Bacigalupi's yampah,  Mother lode yampah
rare native
Perennial herb

APIACEAE

Perideridia bacigalupii
© 2007 Chris Winchell
Perideridia bacigalupii
© 2007 Chris Winchell
Perideridia bacigalupii
© 2007 Chris Winchell

Perideridia gairdneri ssp. gairdneri    Gairdner's yampah
rare native
Perennial herb

APIACEAE

Perideridia gairdneri ssp. gairdneri
© 2021 Mary Conway
Perideridia gairdneri ssp. gairdneri
© 2021 Larry Dizmang
Perideridia gairdneri ssp. gairdneri
© 2021 Scott Yarger

Perideridia leptocarpa    Narrow seeded yampah,  Narrowseed yampah
rare native
Perennial herb

APIACEAE

Perideridia leptocarpa
© 2012 Steve Matson
Perideridia leptocarpa
© 2012 Steve Matson
Perideridia leptocarpa
© 2012 Steve Matson

Perideridia parishii ssp. parishii    Parish's yampah
rare native
Perennial herb

APIACEAE

Perideridia parishii ssp. parishii
© 2009 Thomas Stoughton
Perideridia parishii ssp. parishii
© 2009 Thomas Stoughton
Perideridia parishii ssp. parishii
© 2009 Thomas Stoughton

Perideridia pringlei    Adobe yampah
rare native
Perennial herb

APIACEAE

Perideridia pringlei
© 2023 Mike Russler
Perideridia pringlei
© 2023 Mike Russler
Perideridia pringlei
© 2023 Mike Russler

Perityle inyoensis    Inyo rock daisy,  Inyo rockdaisy
rare native
Perennial herb, Shrub

ASTERACEAE

Perityle inyoensis
© 2011 Steve Matson
Perityle inyoensis
© 2011 Steve Matson
Perityle inyoensis
© 2011 Steve Matson

Perityle villosa    Hanaupah rock daisy,  Hanaupah rockdaisy
rare native
Perennial herb

ASTERACEAE

Perityle villosa
© 2019 Matt Berger
Perityle villosa
© 2019 Matt Berger
Perityle villosa
© 2019 Matt Berger

Petalonyx linearis    Long leaved sandpaper plant,  Narrow leaf sandpaper plant,  Narrowleaf sandpaper plant
rare native
Shrub

LOASACEAE

Petalonyx linearis
© 2016 Fred Melgert
Petalonyx linearis
© 2016 Fred Melgert
Petalonyx linearis
© 2016 Fred Melgert

Petalonyx thurberi ssp. gilmanii    Death valley sandpaper plant
rare native
Shrub

LOASACEAE

Petalonyx thurberi ssp. gilmanii
© 2022 Matt Berger
Petalonyx thurberi ssp. gilmanii
© 2022 Matt Berger
Petalonyx thurberi ssp. gilmanii
© 2022 Matt Berger

Peteria thompsoniae    Spine noded milk vetch,  Thompson's peteria
rare native
Perennial herb

FABACEAE

Peteria thompsoniae
© 2013 Steve Matson
Peteria thompsoniae
© 2013 Steve Matson

Petradoria pumila ssp. pumila    Grassy rockgoldenrod,  Rock goldenrod
rare native
Perennial herb

ASTERACEAE

Petradoria pumila ssp. pumila
© 2010 Aaron Schusteff
Petradoria pumila ssp. pumila
© 2005 James M. Andre
Petradoria pumila ssp. pumila
© 2005 James M. Andre

rare native
Shrub

ROSACEAE

Petrophytum caespitosum ssp. acuminatum
© 2024 Dana York
Petrophytum caespitosum ssp. acuminatum
© 2024 Dana York
Petrophytum caespitosum ssp. acuminatum
© 2024 Dana York

Phacelia amabilis    Saline valley phacelia
rare native
Annual herb

HYDROPHYLLACEAE


Phacelia anelsonii    Aven nelson's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia anelsonii
© 2008 Steve Matson
Phacelia anelsonii
© 2008 Steve Matson
Phacelia anelsonii
© 2008 Steve Matson

Phacelia argentea    Sand dune phacelia,  Sanddune phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Phacelia argentea
© 2012 Genevieve K. Walden Using these photos: A variety of organization
Phacelia argentea
© 2009 Genevieve K. Walden
Phacelia argentea
© 2008 Genevieve K. Walden

Phacelia barnebyana    Barneby's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia barnebyana
© 2023 Steve Matson
Phacelia barnebyana
© 2023 Steve Matson
Phacelia barnebyana
© 2023 Steve Matson

Phacelia ciliata var. opaca    Great valley phacelia,  Merced phacelia
rare native
Annual herb

HYDROPHYLLACEAE


Phacelia coerulea    Sky blue phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia coerulea
© 2008 Steve Matson
Phacelia coerulea
© 2008 Steve Matson
Phacelia coerulea
© 2004 James M. Andre

Phacelia cookei    Cooke's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia cookei
© 2022 Steve Matson
Phacelia cookei
© 2020 Steve Laymon
Phacelia cookei
© 2023 Ryan O'Dell

Phacelia exilis    Transverse range phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia exilis
© 2019 Matt Berger
Phacelia exilis
© 2019 Matt Berger
Phacelia exilis
© 2020 Jacob Smith

Phacelia floribunda    Many flowered phacelia,  Southern island phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia floribunda
© 2014 Dylan Neubauer
Phacelia floribunda
© 2011 Neal Kramer
Phacelia floribunda
© 2008 Kim M. Klementowski

Phacelia greenei    Scott valley phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia greenei
© 2011 Steve Matson
Phacelia greenei
© 2011 Steve Matson
Phacelia greenei
© 2024 Jordan Collins

Phacelia gymnoclada    Naked stem phacelia,  Nakedstem phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia gymnoclada
© 2019 Steve Matson
Phacelia gymnoclada
© 2019 Steve Matson
Phacelia gymnoclada
© 2019 Steve Matson

Phacelia hubbyi    Hubby's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia hubbyi
© 2024 Jacob A
Phacelia hubbyi
© 2024 Ron Vanderhoff
Phacelia hubbyi
© 2023 Julia Markey

Phacelia insularis var. continentis    North coast phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia insularis var. continentis
© 2022 R.A. Chasey
Phacelia insularis var. continentis
© 2023 Scott Yarger
Phacelia insularis var. continentis
© 2022 R.A. Chasey

Phacelia insularis var. insularis    Island phacelia,  Northern channel islands phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia insularis var. insularis
© 2006 Steve Matson
Phacelia insularis var. insularis
© 2006 Steve Matson
Phacelia insularis var. insularis
© 2006 Steve Matson

Phacelia inundata    Playa phacelia,  Playa yellow phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia inundata
© 2008 F. Gauna
Phacelia inundata
© 2008 F. Gauna

Phacelia inyoensis    Inyo phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia inyoensis
© 2019 Matt Berger
Phacelia inyoensis
© 2020 Steve Matson
Phacelia inyoensis
© 2020 Steve Matson

Phacelia keckii    Santiago peak phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia keckii
© 2019 Ron Vanderhoff
Phacelia keckii
© 2019 Ron Vanderhoff
Phacelia keckii
© 2019 Ron Vanderhoff

Phacelia leonis    Siskiyou phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia leonis
© 2019 Steve Matson
Phacelia leonis
© 2019 Steve Matson
Phacelia leonis
© 2019 Steve Matson

Phacelia mohavensis    Mojave phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia mohavensis
© 2017 John L. Thompson
Phacelia mohavensis
© 2019 Manzanita Dictionary
Phacelia mohavensis
© 2005 Chris Wagner, SBNF

Phacelia monoensis    Mono county phacelia,  Mono phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia monoensis
© 2010 Steve Matson
Phacelia monoensis
© 2010 Steve Matson
Phacelia monoensis
© 2010 Steve Matson

Phacelia mustelina    Death valley round leaved phacelia,  Weasel phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia mustelina
© 2011 Steve Matson
Phacelia mustelina
© 2019 Matt Berger
Phacelia mustelina
© 2019 Matt Berger

Phacelia nashiana    Charlotte's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia nashiana
© 2022 Bob Steele
Phacelia nashiana
© 2024 Bob Steele
Phacelia nashiana
© 2016 Steve Matson

Phacelia novenmillensis    Nine mile canyon phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia novenmillensis
© 2023 Mike Russler
Phacelia novenmillensis
© 2019 Matt Berger
Phacelia novenmillensis
© 2023 Bob Steele

Phacelia orogenes    Mountain phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia orogenes
© 2018 Mary Merriman
Phacelia orogenes
© 2017 Chao Shi
Phacelia orogenes
© 2017 Ashley Olive

Phacelia parishii    Parish's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia parishii
© 2023 Matt Berger
Phacelia parishii
© 2023 Matt Berger
Phacelia parishii
© 2023 Matt Berger

Phacelia peirsoniana    Handsome phacelia,  Peirson's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia peirsoniana
© 2019 Steve Matson
Phacelia peirsoniana
© 2019 Steve Matson
Phacelia peirsoniana
© 2019 Steve Matson

Phacelia perityloides var. jaegeri    Jaeger's panamint phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Phacelia perityloides var. jaegeri
© 2020 Matt Berger
Phacelia perityloides var. jaegeri
© 2010 James M. Andre
Phacelia perityloides var. jaegeri
© 2012 Jean Pawek

Phacelia phacelioides    Mt. Diablo phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia phacelioides
© 2019 Steve Matson
Phacelia phacelioides
© 2019 Steve Matson
Phacelia phacelioides
© 2019 Steve Matson

Phacelia pulchella var. gooddingii    Goodding's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia pulchella var. gooddingii
© 2015 Patrick Donnelly
Phacelia pulchella var. gooddingii
© 2015 Patrick Donnelly
Phacelia pulchella var. gooddingii
© 2015 Patrick Donnelly

Phacelia ramosissima var. austrolitoralis    South coast branching phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Phacelia ramosissima var. austrolitoralis
© 2018 Ron Vanderhoff
Phacelia ramosissima var. austrolitoralis
© 2023 Ron Vanderhoff
Phacelia ramosissima var. austrolitoralis
© 2021 Richard Spjut

Phacelia sericea var. ciliosa    Blue alpine phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Phacelia sericea var. ciliosa
© 2019 Julie Kierstead Nelson
Phacelia sericea var. ciliosa
© 2019 Julie Kierstead Nelson
Phacelia sericea var. ciliosa
© 2019 Julie Kierstead Nelson

Phacelia stebbinsii    Stebbins' phacelia,  Stebbins's phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia stebbinsii
© 2019 Matt Berger
Phacelia stebbinsii
© 2019 Matt Berger
Phacelia stebbinsii
© 2019 Matt Berger

Phacelia stellaris    Brand's phacelia,  Star phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia stellaris
© 2016 Keir Morse
Phacelia stellaris
© 2016 Keir Morse
Phacelia stellaris
© 2012 Keir Morse

Phaseolus filiformis    Slender stem bean,  Slimjim bean
rare native
Annual herb

FABACEAE

Phaseolus filiformis
© 2022 Joe DeWolf
Phaseolus filiformis
© 2004 Debra Valov
Phaseolus filiformis
© 2022 Joe DeWolf

Phlox dispersa    High sierra phlox
rare native
Perennial herb

POLEMONIACEAE

Phlox dispersa
© 2020 Matt Berger
Phlox dispersa
© 2020 Matt Berger
Phlox dispersa
© 2020 Matt Berger

Phlox dolichantha    Big bear valley phlox
rare native
Perennial herb

POLEMONIACEAE

Phlox dolichantha
© 2019 Matt Berger
Phlox dolichantha
© 2019 Matt Berger
Phlox dolichantha
© 2019 Matt Berger

Phlox hirsuta    Hairy phlox,  Yreka phlox
rare native
Perennial herb

POLEMONIACEAE

Phlox hirsuta
© 2024 Bob Mason
Phlox hirsuta
© 2022 Julie A. Kierstead
Phlox hirsuta
© 2019 Barbara Peck

Phlox muscoides    Moss phlox
rare native
Perennial herb

POLEMONIACEAE

Phlox muscoides
© 2013 Justy Leppert
Phlox muscoides
© 2023 Dana York
Phlox muscoides
© 2002 California Native Plant Society

Pholisma sonorae    Sand food,  Sandfood
rare native
Perennial herb (parasitic)

LENNOACEAE

Pholisma sonorae
© 2020 Joey Santore
Pholisma sonorae
© 2024 Peri Lee Pipkin
Pholisma sonorae
© 2008 Michael Charters

Pholistoma auritum var. arizonicum    Arizona fiestaflower,  Arizona pholistoma
rare native
Annual herb

HYDROPHYLLACEAE

Pholistoma auritum var. arizonicum
© 2016 Fred Melgert
Pholistoma auritum var. arizonicum
© 2017 Fred Melgert / Carla Hoegen
Pholistoma auritum var. arizonicum
© 2016 Fred Melgert

Physalis lobata    Lobed ground cherry
rare native
Perennial herb

SOLANACEAE

Physalis lobata
© 2008 Steve Matson
Physalis lobata
© 2008 Steve Matson
Physalis lobata
© 2008 Steve Matson

Physaria chambersii    Chambers' twinpod,  Double bladderpod
rare native
Perennial herb

BRASSICACEAE

Physaria chambersii
© 2006 Trent M. Draper
Physaria chambersii
© 2010 Mary Winter
Physaria chambersii
© 2014 Zoya Akulova

Physaria kingii ssp. bernardina    San bernardino mountains bladderpod
rare native
Perennial herb

BRASSICACEAE

Physaria kingii ssp. bernardina
© Geoff Burleigh
Physaria kingii ssp. bernardina
© 2023 Ryan O'Dell
Physaria kingii ssp. bernardina
© 2023 Ryan O'Dell

Physaria ludoviciana    Silver bladderpod
rare native
Perennial herb

BRASSICACEAE

Physaria ludoviciana
© 2016 Steve Matson
Physaria ludoviciana
© © 2016 Steve Matson
Physaria ludoviciana
© 2016 Steve Matson

Physocarpus alternans    Dwarf ninebark,  Nevada ninebark
rare native
Shrub

ROSACEAE

Physocarpus alternans
© 2011 Steve Matson
Physocarpus alternans
© 2011 Steve Matson
Physocarpus alternans
© 2019 Matt Berger

Picea engelmannii    Engelmann spruce
rare native
Tree

PINACEAE

Picea engelmannii
© 2000 John Game
Picea engelmannii
© 2004 Robert Sivinski
Picea engelmannii
© 2003 Joseph Dougherty/ecology.org

Pickeringia montana var. tomentosa    Montana chaparral pea
rare native
Shrub

FABACEAE

Pickeringia montana var. tomentosa
© 2024 Mike Russler
Pickeringia montana var. tomentosa
© 2024 Mike Russler
Pickeringia montana var. tomentosa
© 2024 Mike Russler

Picradeniopsis multiflora    Many flowered bahia
rare native
Annual herb

ASTERACEAE

Picradeniopsis multiflora
© 2011 Keir Morse
Picradeniopsis multiflora
© 2011 Keir Morse
Picradeniopsis multiflora
© 2011 Keir Morse

Pilostyles thurberi    Thurber's pilostyles,  Thurber's stemsucker
rare native
Perennial herb (parasitic)

APODANTHACEAE

Pilostyles thurberi
© 2018 Fred Melgert / Carla Hoegen
Pilostyles thurberi
© 2016 Fred Melgert
Pilostyles thurberi
© 2018 Fred Melgert / Carla Hoegen

Pinguicula macroceras    California butterwort
rare native
Perennial herb (carnivorous)

LENTIBULARIACEAE

Pinguicula macroceras
© 2017 Steve Matson
Pinguicula macroceras
© 2017 Steve Matson
Pinguicula macroceras
© 2017 Steve Matson

Pinus contorta ssp. bolanderi    Bolander pine,  Bolander's beach pine
rare native
Tree

PINACEAE

Pinus contorta ssp. bolanderi
© 2019 Susan McDougall
Pinus contorta ssp. bolanderi
© 2019 Susan McDougall
Pinus contorta ssp. bolanderi
© 2022 R.A. Chasey

Pinus edulis    Two needle pinyon pine,  Twoneedle pinyon
rare native
Tree

PINACEAE

Pinus edulis
© 2020 David Greenberger
Pinus edulis
© 2010 Lee Dittmann
Pinus edulis
© 2009 Lee Dittmann

Pinus longaeva    Great basin bristlecone pine,  Hickory pine
rare native
Tree

PINACEAE

Pinus longaeva
© 2020 Ofer Dub
Pinus longaeva
© 2019 Matt Berger
Pinus longaeva
© 2023 Barbara B Renshaw

Pinus torreyana ssp. insularis    Santa rosa isl. torrey pine
rare native
Tree

PINACEAE

Pinus torreyana ssp. insularis
© 2020 sweiser
Pinus torreyana ssp. insularis
© 2025 chloe_and_trevor
Pinus torreyana ssp. insularis
© 2024 stellathejay

rare native
Tree

PINACEAE

Pinus torreyana ssp. torreyana
© 2019 Susan McDougall
Pinus torreyana ssp. torreyana
© 2019 Diane Etchison
Pinus torreyana ssp. torreyana
© 2019 Susan McDougall

Piperia candida    White flowered rein orchid,  Whiteflower rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia candida
© 2019 Peter Warner
Piperia candida
© 2012 Raymond Prothero
Piperia candida
© 2023 R.A. Chasey

Piperia colemanii    Coleman's piperia
rare native
Perennial herb

ORCHIDACEAE

Piperia colemanii
© 2019 Matt Berger
Piperia colemanii
© 2019 Matt Berger
Piperia colemanii
© 2022 Bob Sweatt

Piperia cooperi    Cooper's rein orchid,  Coopers rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia cooperi
© 2021 Ron Vanderhoff
Piperia cooperi
© 2021 Ron Vanderhoff
Piperia cooperi
© 2018 Ron Vanderhoff

Piperia elegans ssp. decurtata    Elegant piperia
rare native
Perennial herb

ORCHIDACEAE

Piperia elegans ssp. decurtata
© 2023 Hunter Breck
Piperia elegans ssp. decurtata
© 2023 Hunter Breck
Piperia elegans ssp. decurtata
© 2023 Hunter Breck

Piperia leptopetala    Rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia leptopetala
© 2024 Jordan Collins
Piperia leptopetala
© 2024 Jordan Collins
Piperia leptopetala
© 2021 R.A. Chasey

Piperia michaelii    Michael's piperia,  Michael's rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia michaelii
© 2019 stephen rosenthal
Piperia michaelii
© 2023 John Rawlings
Piperia michaelii
© 2024 Maya Avendano

Piperia yadonii    Yadon's piperia,  Yadon's rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia yadonii
© 2020 Mary Conway
Piperia yadonii
© 2021 Patrick Furtado
Piperia yadonii
© 2020 Mary Conway

rare native
Perennial herb (mycoparasitic)

ERICACEAE

Pityopus californicus
© 2022 Hunter Breck
Pityopus californicus
© 2023 Michael Heine
Pityopus californicus
© 2022 Hunter Breck

Plagiobothrys chorisianus var. chorisianus    Artist's popcornflower,  Choris's popcorn flower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys chorisianus var. chorisianus
© 2023 Doug Allshouse
Plagiobothrys chorisianus var. chorisianus
© 2015 Toni Corelli
Plagiobothrys chorisianus var. chorisianus
© 2021 Toni Corelli

Plagiobothrys chorisianus var. hickmanii    Hickman's popcorn flower,  Hickman's popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys chorisianus var. hickmanii
© 2022 Steven Mills Glascock
Plagiobothrys chorisianus var. hickmanii
© 2023 Ellen Uhler
Plagiobothrys chorisianus var. hickmanii
© 2022 Irene Rosen

Plagiobothrys diffusus    San francisco popcorn flower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys diffusus
© 2011 Peter Scott
Plagiobothrys diffusus
© 2011 Steve Matson
Plagiobothrys diffusus
© 2011 Peter Scott

Plagiobothrys glaber    Hairless popcorn flower,  Hairless popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys glaber
© 2019 Dean Wm. Taylor
Plagiobothrys glaber
© 2019 Dean Wm. Taylor
Plagiobothrys glaber
© 2011 Steve Matson

Plagiobothrys glyptocarpus var. modestus    Cedar crest popcorn flower,  Sculptured popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys glyptocarpus var. modestus
© 2020 Lilyanne Price
Plagiobothrys glyptocarpus var. modestus
© 2022 Neal Kramer
Plagiobothrys glyptocarpus var. modestus
© 2022 Neal Kramer

Plagiobothrys hystriculus    Bearded popcorn flower,  Bearded popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys hystriculus
© 2023 Charles Russell
Plagiobothrys hystriculus
© 2023 Charles Russell
Plagiobothrys hystriculus
© 2022 Richard Sullivan

Plagiobothrys lithocaryus    Mayacamas popcorn flower,  Mayacamas popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys lithocaryus
© 2011 Steve Matson
Plagiobothrys lithocaryus
© 2011 Steve Matson

Plagiobothrys mollis var. vestitus    Petaluma popcorn flower,  Soft popcornflower
rare native
Perennial herb

BORAGINACEAE


Plagiobothrys nitens    Shiny nutlet popcorn flower
rare native
Perennial herb

BORAGINACEAE

Plagiobothrys nitens
© 2011 Steve Matson
Plagiobothrys nitens
© 2011 Steve Matson

Plagiobothrys parishii    Parish's popcorn flower,  Parish's popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys parishii
© 2022 Steve Matson
Plagiobothrys parishii
© 2022 Steve Matson
Plagiobothrys parishii
© 2022 Steve Matson

Plagiobothrys salsus    Desert popcorn flower,  Salty popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys salsus
© 2010 James M. Andre
Plagiobothrys salsus
© 2023 Matt C. Berger
Plagiobothrys salsus
© 2023 Matt C. Berger

Plagiobothrys strictus    Calistoga popcorn flower,  Calistoga popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys strictus
© 2014 Robert E. Preston, Ph.D.
Plagiobothrys strictus
© 2013 Jake Ruygt
Plagiobothrys strictus
© 2014 Robert E. Preston, Ph.D.

Plagiobothrys torreyi var. perplexans    Chaparral popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys torreyi var. perplexans
© © 2016 John Doyen
Plagiobothrys torreyi var. perplexans
© 2017 Neal Kramer
Plagiobothrys torreyi var. perplexans
© 2017 Neal Kramer

Plagiobothrys torreyi var. torreyi    Torrey's popcorn flower,  Torrey's popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys torreyi var. torreyi
© 2011 Steve Matson
Plagiobothrys torreyi var. torreyi
© 2011 Steve Matson
Plagiobothrys torreyi var. torreyi
© 2011 Steve Matson

Plagiobothrys uncinatus    Hooked popcorn flower,  Salinas valley popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys uncinatus
© 2003 Keir Morse
Plagiobothrys uncinatus
© 2008 Keir Morse
Plagiobothrys uncinatus
© 2014 Jean Pawek

Plagiobothrys verrucosus    Forget-me-not popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys verrucosus
© 2009 Chris Winchell
Plagiobothrys verrucosus
© 2009 Chris Winchell

Plagiobryoides vinosula    Wine-colored tufa moss
rare native
Moss

BRYACEAE


Platanthera stricta    Slender bog orchid
rare native
Perennial herb

ORCHIDACEAE

Platanthera stricta
© 2023 Dana York
Platanthera stricta
© 2023 Dana York
Platanthera stricta
© 2023 Dana York

Platanthera yosemitensis    Yosemite bog orchid
rare native
Perennial herb

ORCHIDACEAE

Platanthera yosemitensis
© 2020 Raymond Prothero
Platanthera yosemitensis
© 2023 Chloe and Trevor Van Loon
Platanthera yosemitensis
© 2023 Chloe and Trevor Van Loon

Platystemon californicus var. ciliatus    Santa barbara island cream cups
rare native
Annual herb

PAPAVERACEAE

Platystemon californicus var. ciliatus
© 2010 Richard Spjut

Pleuridium mexicanum    Mexican pleuridium moss
rare native
Moss

DITRICHACEAE

Pleuridium mexicanum
© © 2012 John Game
Pleuridium mexicanum
© 2012 John Game

Pleuropogon californicus var. davyi    Davy's semaphore grass
rare native
Perennial grass (rhizomatous)

POACEAE

Pleuropogon californicus var. davyi
© 2024 Emily R. Allen
Pleuropogon californicus var. davyi
© 2015 Allison Rofe
Pleuropogon californicus var. davyi
© 2024 Emily R. Allen

Pleuropogon hooverianus    North coast semaphore grass,  North coast semaphoregrass
rare native
Perennial grass (rhizomatous)

POACEAE

Pleuropogon hooverianus
© 2022 Emily R. Allen
Pleuropogon hooverianus
© 2020 Hannah Kang
Pleuropogon hooverianus
© 2020 Hannah Kang

Pleuropogon refractus    Nodding semaphore grass,  Nodding semaphoregrass
rare native
Perennial grass (rhizomatous)

POACEAE

Pleuropogon refractus
© 2022 R.A. Chasey
Pleuropogon refractus
© 2022 R.A. Chasey
Pleuropogon refractus
© 2018 Claire Brown

Poa abbreviata ssp. marshii    Marsh's blue grass,  Marsh's bluegrass
rare native
Perennial grass

POACEAE


Poa abbreviata ssp. pattersonii    Patterson's blue grass
rare native
Perennial grass

POACEAE


Poa atropurpurea    San bernardino blue grass,  San bernardino bluegrass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa atropurpurea
© 2009 Thomas Stoughton
Poa atropurpurea
© 2009 Thomas Stoughton
Poa atropurpurea
© 2014 Jordan Zylstra

Poa diaboli    Diablo canyon blue grass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa diaboli
© 2023 Chloe and Trevor Van Loon
Poa diaboli
© 2023 Chloe and Trevor Van Loon
Poa diaboli
© 2023 Chloe and Trevor Van Loon

Poa lettermanii    Letterman's blue grass,  Letterman's bluegrass
rare native
Perennial grass

POACEAE

Poa lettermanii
© © 2015 Rob Soreng

Poa napensis    Napa blue grass,  Napa bluegrass
rare native
Perennial grass

POACEAE

Poa napensis
© 2018 Jake Ruygt
Poa napensis
© 2018 Jake Ruygt
Poa napensis
© 2018 Jake Ruygt

Poa piperi    Piper's blue grass,  Piper's bluegrass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa piperi
© 2017 Dana York
Poa piperi
© 2017 Dana York
Poa piperi
© 2017 Dana York

Poa rhizomata    Rhizome bluegrass,  Timber blue grass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa rhizomata
© 2018 Dana York
Poa rhizomata
© 2018 Dana York
Poa rhizomata
© 2018 Dana York

Poa sierrae    Sierra blue grass,  Sierra bluegrass
rare native
Perennial grass

POACEAE

Poa sierrae
© 2019 Matt Berger
Poa sierrae
© 2024 Chloe and Trevor Van Loon
Poa sierrae
© 2019 Matt Berger

Podistera nevadensis    Nevada podistera,  Sierra podistera
rare native
Perennial herb

APIACEAE

Podistera nevadensis
© 2005 Steve Matson
Podistera nevadensis
© 2005 Steve Matson
Podistera nevadensis
© 2005 Steve Matson

Pogogyne abramsii    Howell pogogyne,  San diego mesa mint,  San diego mesamint
rare native
Annual herb

LAMIACEAE

Pogogyne abramsii
© 2023 Caitlin Kreutz
Pogogyne abramsii
© 2012 Keir Morse
Pogogyne abramsii
© 2012 Keir Morse

Pogogyne clareana    Clare's pogogyne,  Santa lucia mint
rare native
Annual herb

LAMIACEAE

Pogogyne clareana
© 1999 Dieter Wilken
Pogogyne clareana
© 2006 Aaron Schusteff

Pogogyne floribunda    Profuse flowered pogogyne,  Profuseflower mesamint
rare native
Annual herb

LAMIACEAE

Pogogyne floribunda
© 1988 Dean Wm. Taylor
Pogogyne floribunda
© 2010 Sierra Pacific Industries

Pogogyne nudiuscula    Otay mesa mint,  Otay mesamint,  San diego pogogyne
rare native
Annual herb

LAMIACEAE

Pogogyne nudiuscula
© 2010 Anna Bennett
Pogogyne nudiuscula
© 2001 Greg Mason

Pohlia flexuosa    Flexuose threadmoss
rare native
Moss

MIELICHHOFERIACEAE


Pohlia tundrae    Tundra pohlia moss
rare native
Moss

BRYACEAE

Pohlia tundrae
© © 2014 Dean Wm. Taylor

Polemonium carneum    Great polemonium,  Royal jacob's ladder,  Royal sky pilot
rare native
Perennial herb

POLEMONIACEAE

Polemonium carneum
© 2021 Amy Rachkowski
Polemonium carneum
© 2017 Steve Matson
Polemonium carneum
© 2017 Steve Matson

Polemonium chartaceum    Mason's jacob's ladder,  Mason's sky pilot
rare native
Perennial herb

POLEMONIACEAE

Polemonium chartaceum
© 2004 Steve Matson
Polemonium chartaceum
© 2004 Steve Matson
Polemonium chartaceum
© 2004 Steve Matson

Polemonium eddyense    Mt. Eddy sky pilot
rare native
Perennial herb

POLEMONIACEAE

Polemonium eddyense
© 2020 Dana York
Polemonium eddyense
© 2011 Steve Matson
Polemonium eddyense
© 2019 Chasey

Polemonium pulcherrimum var. shastense    Mt. shasta sky pilot
rare native
Perennial herb

POLEMONIACEAE

Polemonium pulcherrimum var. shastense
© 2019 Steve Matson
Polemonium pulcherrimum var. shastense
© 2019 Steve Matson
Polemonium pulcherrimum var. shastense
© 2005 Cheryl Beyer

Poliomintha incana    Frosted mint
rare native
Shrub

LAMIACEAE


Polyctenium fremontii var. fremontii    Fremont's combleaf,  Fremont's polyctenium
rare native
Perennial herb

BRASSICACEAE

Polyctenium fremontii var. fremontii
© 2011 Steve Matson
Polyctenium fremontii var. fremontii
© 2009 Steve Matson
Polyctenium fremontii var. fremontii
© 2021 Sarah Tona

Polyctenium williamsiae    Williams's combleaf
rare native
Perennial herb

BRASSICACEAE

Polyctenium williamsiae
© 2020 Matt Berger
Polyctenium williamsiae
© 2009 Steve Matson
Polyctenium williamsiae
© 2020 Matt Berger

Polygala acanthoclada    Desert milkwort,  Desert polygala,  Milkwort
rare native
Shrub

POLYGALACEAE

Polygala acanthoclada
© 2011 Keir Morse
Polygala acanthoclada
© 2011 Keir Morse
Polygala acanthoclada
© 2011 Keir Morse

Polygala cornuta var. fishiae    Fish's milkwort,  Sierra milkwort
rare native
Shrub

POLYGALACEAE

Polygala cornuta var. fishiae
© 2019 Rachelle Gray
Polygala cornuta var. fishiae
© 2022 Ron Vanderhoff
Polygala cornuta var. fishiae
© 2019 Rachelle Gray

Polygala heterorhyncha    Beaked spiny polygala,  Notch beaked milkwort
rare native
Perennial herb

POLYGALACEAE

Polygala heterorhyncha
© 2006 James M. Andre
Polygala heterorhyncha
© 2006 James M. Andre

Polygala intermontana    Great basin milkwort,  Intermountain milkwort
rare native
Perennial herb, Shrub

POLYGALACEAE

Polygala intermontana
© 2017 Jim Morefield
Polygala intermontana
© 2017 Jim Morefield
Polygala intermontana
© 2017 Jim Morefield

Polygala subspinosa    Spiny milkwort
rare native
Perennial herb

POLYGALACEAE

Polygala subspinosa
© 2022 Trevor Schalla
Polygala subspinosa
© 2022 Trevor Schalla
Polygala subspinosa
© 2022 Trevor Schalla

Polygonum bidwelliae    Bidwell's knotweed
rare native
Annual herb

POLYGONACEAE

Polygonum bidwelliae
© 2025 Steve Matson
Polygonum bidwelliae
© 2024 Alaine Arslan
Polygonum bidwelliae
© 2021 Donald Burk

Polygonum hickmanii    Hickman's knotweed
rare native
Annual herb

POLYGONACEAE

Polygonum hickmanii
© 2006 California Department of Fish and Game
Polygonum hickmanii
© 2006 California Department of Fish and Game

Polygonum marinense    Marin knotweed
rare native
Annual herb

POLYGONACEAE

Polygonum marinense
© 2024 R.A. Chasey
Polygonum marinense
© 2022 Sheryl Creer
Polygonum marinense
© 2024 R.A. Chasey

Polygonum polygaloides ssp. esotericum    Modoc county knotweed,  Whitemargin knotweed
rare native
Annual herb

POLYGONACEAE

Polygonum polygaloides ssp. esotericum
© 2023 Donald Burk
Polygonum polygaloides ssp. esotericum
© 2023 Donald Burk
Polygonum polygaloides ssp. esotericum
© 2023 Donald Burk

Polystichum kruckebergii    Kruckeberg's hollyfern,  Kruckeberg's sword fern
rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

Polystichum kruckebergii
© 2022 Dana York
Polystichum kruckebergii
© 2019 Matt Berger
Polystichum kruckebergii
© 2023 Dana York

Polystichum lonchitis    Holly fern,  Northern hollyfern
rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

Polystichum lonchitis
© 2019 Michael Kauffmann
Polystichum lonchitis
© 2019 Michael Kauffmann
Polystichum lonchitis
© 2022 Dana York

Populus angustifolia    Narrow leaved cottonwood,  Narrowleaf cottonwood
rare native
Tree

SALICACEAE

Populus angustifolia
© 2017 Brian Powell
Populus angustifolia
© 2017 Brian Powell
Populus angustifolia
© 2023 richard mcneill

Portulaca halimoides    Desert portulaca,  Purslane,  Silkcotton purslane
rare native
Annual herb

PORTULACACEAE

Portulaca halimoides
© 2012 Keir Morse
Portulaca halimoides
© 2013 Don Davis
Portulaca halimoides
© 2004 James M. Andre

Potamogeton epihydrus    Ribbonleaf pondweed
rare native
Perennial herb (rhizomatous)

POTAMOGETONACEAE

Potamogeton epihydrus
© 2020 Maisie Borg
Potamogeton epihydrus
© 2020 Maisie Borg
Potamogeton epihydrus
© 2020 Maisie Borg

rare native
Perennial herb

POTAMOGETONACEAE


Potamogeton praelongus    White stemmed pondweed,  Whitestem pondweed
rare native
Perennial herb (rhizomatous)

POTAMOGETONACEAE

Potamogeton praelongus
© 2024 Matt Berger
Potamogeton praelongus
© 2022 Bas Kers
Potamogeton praelongus
© 2024 Matt Berger

Potamogeton robbinsii    Robbins' pondweed,  Robbins's pondweed
rare native
Perennial herb (rhizomatous)

POTAMOGETONACEAE

Potamogeton robbinsii
© 2014 Dana York
Potamogeton robbinsii
© 2023 Dana York
Potamogeton robbinsii
© 2023 Dana York

Potamogeton zosteriformis    Eel grass pondweed,  Flatstem pondweed
rare native
Annual herb (aquatic)

POTAMOGETONACEAE

Potamogeton zosteriformis
© 2009 Gerald Carr
Potamogeton zosteriformis
© 2009 Gerald Carr
Potamogeton zosteriformis
© 2009 Gerald Carr

Potentilla basaltica    Black rock potentilla,  Soldier meadows cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla basaltica
© 2008 Dean Wm. Taylor, Ph.D.
Potentilla basaltica
© 2009 F. Gauna

Potentilla concinna var. proxima    Elegant cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla concinna var. proxima
© 2019 Dylan Neubauer
Potentilla concinna var. proxima
© 2019 Dylan Neubauer
Potentilla concinna var. proxima
© 2019 Dylan Neubauer

Potentilla cristae    Crested cinquefoil,  Crested potentilla
rare native
Perennial herb

ROSACEAE

Potentilla cristae
© 2011 Steve Matson
Potentilla cristae
© 2011 Steve Matson
Potentilla cristae
© 2011 Steve Matson

Potentilla hickmanii    Hickman's cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla hickmanii
© 2007 Neal Kramer
Potentilla hickmanii
© 2005 Bob Huettmann
Potentilla hickmanii
© 2009 Neal Kramer

Potentilla morefieldii    Morefield's cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla morefieldii
© 2024 Erin Bergman
Potentilla morefieldii
© 2024 Mike Russler
Potentilla morefieldii
© 2024 Mike Russler

Potentilla multijuga    Ballona cinquefoil
rare native
Perennial herb

ROSACEAE


Potentilla newberryi    Newberry's cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla newberryi
© 2022 Steve Ashcraft
Potentilla newberryi
© 2021 Bob Sweatt
Potentilla newberryi
© 2021 Bob Sweatt

Potentilla pulcherrima    Beautiful cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla pulcherrima
© 2013 Dylan Neubauer
Potentilla pulcherrima
© 2013 Dylan Neubauer

Potentilla rimicola    Cliff cinquefoil
rare native
Perennial herb

ROSACEAE

Potentilla rimicola
© 2009 bill bulger
Potentilla rimicola
© 2005 US Forest Service
Potentilla rimicola
© 2005 US Forest Service

Potentilla uliginosa    Cunningham marsh cinquefoil
rare native
Perennial herb

ROSACEAE


Primula pauciflora    Beautiful shooting star,  Dark throat shooting star
rare native
Perennial herb

PRIMULACEAE

Primula pauciflora
© 2008 Steve Matson
Primula pauciflora
© 2008 Steve Matson
Primula pauciflora
© 2008 Steve Matson

Proboscidea althaeifolia    Desert devil's claw,  Desert unicorn plant
rare native
Perennial herb

MARTYNIACEAE

Proboscidea althaeifolia
© 2012 Keir Morse
Proboscidea althaeifolia
© 2012 Keir Morse
Proboscidea althaeifolia
© 2012 Keir Morse

Prosartes parvifolia    Siskiyou bells
rare native
Perennial herb

LILIACEAE

Prosartes parvifolia
© 2010 Ray Collett
Prosartes parvifolia
© 2010 Ray Collett
Prosartes parvifolia
© 2010 Ray Collett

Prunus eremophila    Desert plum
rare native
Shrub

ROSACEAE

Prunus eremophila
© 2012 James M. Andre
Prunus eremophila
© 2004 James M. Andre
Prunus eremophila
© 2010 James M. Andre

Prunus fasciculata var. punctata    Desert almond,  Sand almond
rare native
Shrub

ROSACEAE

Prunus fasciculata var. punctata
© 2024 Mike Russler
Prunus fasciculata var. punctata
© 2024 Mike Russler
Prunus fasciculata var. punctata
© 2024 Mike Russler

Pseudobahia bahiifolia    Hartweg's golden sunburst
rare native
Annual herb

ASTERACEAE

Pseudobahia bahiifolia
© 2022 Steve Matson
Pseudobahia bahiifolia
© 2022 Steve Matson
Pseudobahia bahiifolia
© 2022 Steve Matson

Pseudobahia peirsonii    San joaquin adobe sunburst
rare native
Annual herb

ASTERACEAE

Pseudobahia peirsonii
© 2016 Steve Matson
Pseudobahia peirsonii
© 2016 Steve Matson
Pseudobahia peirsonii
© 2016 Steve Matson

Pseudognaphalium leucocephalum    White cudweed,  White rabbit tobacco
rare native
Perennial herb

ASTERACEAE

Pseudognaphalium leucocephalum
© 2021 Aaron Echols
Pseudognaphalium leucocephalum
© 2021 Aaron Echols
Pseudognaphalium leucocephalum
© 2024 Mike Russler

Pseudorontium cyathiferum    Deep canyon snapdragon
rare native
Annual herb

PLANTAGINACEAE

Pseudorontium cyathiferum
© 2023 Keir Morse
Pseudorontium cyathiferum
© 2024 Lynn Sweet
Pseudorontium cyathiferum
© 2023 Keir Morse

Pseudostellaria sierrae    Sierra starwort
rare native
Perennial herb (rhizomatous)

CARYOPHYLLACEAE

Pseudostellaria sierrae
© 2004 Dean Wm. Taylor
Pseudostellaria sierrae
© 2024 Matt Berger
Pseudostellaria sierrae
© 2024 Matt Berger

Psilocarphus brevissimus var. multiflorus    Delta woolly marbles,  Dwarf woollyheads
rare native
Annual herb

ASTERACEAE

Psilocarphus brevissimus var. multiflorus
© 2018 David Greenberger
Psilocarphus brevissimus var. multiflorus
© 2019 Elliot Gunnison
Psilocarphus brevissimus var. multiflorus
© 2025 DAV - University of California, Davis Center for Plant Diversity - Vascular Plants

Psilocarphus elatior    Meadow woollyheads,  Tall woolly marbles
rare native
Annual herb

ASTERACEAE

Psilocarphus elatior
© 2006 Gerald Carr
Psilocarphus elatior
© 2006 Gerald Carr
Psilocarphus elatior
© 2006 Gerald Carr

Psorothamnus arborescens var. arborescens    Mojave indigo bush,  Mojave indigobush
rare native
Shrub

FABACEAE

Psorothamnus arborescens var. arborescens
© 2005 Michelle Cloud-Hughes
Psorothamnus arborescens var. arborescens
© 2024 Zoya Akulova-Barlow
Psorothamnus arborescens var. arborescens
© 2018 Neal Kramer

Psorothamnus fremontii var. attenuatus    Fremont's dalea,  Fremont's indigo bush
rare native
Shrub

FABACEAE

Psorothamnus fremontii var. attenuatus
© 2006 Dr. James D. Adams
Psorothamnus fremontii var. attenuatus
© 2019 Neal Kramer
Psorothamnus fremontii var. attenuatus
© 2019 Neal Kramer

Ptilidium californicum    Pacific fuzz wort
rare native
Liverwort

PTILIDIACEAE

Ptilidium californicum
© 2012 Martin J. Lenz
Ptilidium californicum
© 2013 Scot Loring

Puccinellia howellii    Howell's alkali grass,  Howell's alkaligrass
rare native
Perennial grass

POACEAE

Puccinellia howellii
© 2022 Matt Berger
Puccinellia howellii
© 2022 Matt Berger
Puccinellia howellii
© 2019 Matt Berger

Puccinellia parishii    Bog alkaligrass,  Parish's alkali grass
rare native
Annual grass

POACEAE


Puccinellia pumila    Dwarf alkali grass
rare native
Perennial grass

POACEAE


Puccinellia simplex    California alkaligrass
rare native
Annual grass

POACEAE

Puccinellia simplex
© 2019 John Rawlings
Puccinellia simplex
© 2019 John Rawlings
Puccinellia simplex
© 2022 Denise Defreese

Pyrola chlorantha    Green flowered wintergreen,  Greenflowered wintergreen
rare native
Shrub (stem succulent)

ERICACEAE

Pyrola chlorantha
© 2013 Dr. Amadej Trnkoczy
Pyrola chlorantha
© 2012 RT Hawke
Pyrola chlorantha
© 2013 Dr. Amadej Trnkoczy

Pyrrocoma lucida    Sticky goldenweed,  Sticky pyrrocoma
rare native
Perennial herb

ASTERACEAE

Pyrrocoma lucida
© 2024 Donald Burk
Pyrrocoma lucida
© 2024 Donald Burk
Pyrrocoma lucida
© 2024 Donald Burk

Pyrrocoma racemosa var. congesta    Clustered goldenweed,  Del norte pyrrocoma
rare native
Perennial herb

ASTERACEAE

Pyrrocoma racemosa var. congesta
© 2007 Keir Morse
Pyrrocoma racemosa var. congesta
© 2007 Keir Morse
Pyrrocoma racemosa var. congesta
© 2007 Keir Morse

Pyrrocoma racemosa var. pinetorum    Clustered goldenweed,  Pine pyrrocoma
rare native
Perennial herb

ASTERACEAE

Pyrrocoma racemosa var. pinetorum
© 2020 joaquin hale
Pyrrocoma racemosa var. pinetorum
© 2020 joaquin hale
Pyrrocoma racemosa var. pinetorum
© 2020 joaquin hale

Pyrrocoma uniflora var. gossypina    Bear valley pyrrocoma,  Plantain goldenweed
rare native
Perennial herb

ASTERACEAE

Pyrrocoma uniflora var. gossypina
© 2008 Thomas Stoughton
Pyrrocoma uniflora var. gossypina
© Rick York and CNPS
Pyrrocoma uniflora var. gossypina
© 2005 Chris Wagner, SBNF

Quercus cedrosensis    Cedros island oak
rare native
Tree

FAGACEAE

Quercus cedrosensis
© 2021 Ron Vanderhoff
Quercus cedrosensis
© 2023 Nathan Taylor
Quercus cedrosensis
© 2021 Ron Vanderhoff

Quercus dumosa    Coastal sage scrub oak,  Nuttall's scrub oak
rare native
Shrub

FAGACEAE

Quercus dumosa
© 2023 Ron Vanderhoff
Quercus dumosa
© 2022 Ron Vanderhoff
Quercus dumosa
© 2012 Ron Vanderhoff

Quercus durata var. gabrielensis    San Gabriel Mtns. leather oak
rare native
Shrub

FAGACEAE

Quercus durata var. gabrielensis
© 2019 Manzanita Dictionary
Quercus durata var. gabrielensis
© 2019 Manzanita Dictionary
Quercus durata var. gabrielensis
© 2019 Susan McDougall

Quercus engelmannii    Engelmann oak
rare native
Tree

FAGACEAE

Quercus engelmannii
© 2022 Ron Vanderhoff
Quercus engelmannii
© 2020 Ron Vanderhoff
Quercus engelmannii
© 2020 Ron Vanderhoff

Quercus pacifica    Channel island scrub oak,  Island scrub oak
rare native
Shrub

FAGACEAE

Quercus pacifica
© 2021 Chris Leslie
Quercus pacifica
© 2020 Susan McDougall
Quercus pacifica
© 2020 David Greenberger

Quercus parvula var. parvula    Santa cruz island oak
rare native
Tree

FAGACEAE

Quercus parvula var. parvula
© 2006 Adonis (Don) Tate
Quercus parvula var. parvula
© 2006 Adonis (Don) Tate
Quercus parvula var. parvula
© 2006 Adonis (Don) Tate

rare native
Shrub

FAGACEAE

Quercus parvula var. tamalpaisensis
© 2021 Hunter Breck
Quercus parvula var. tamalpaisensis
© 2021 Hunter Breck
Quercus parvula var. tamalpaisensis
© 2021 Rowena Forest

Quercus tomentella    Island live oak,  Island oak
rare native
Tree

FAGACEAE

Quercus tomentella
© 2025 Ron Vanderhoff
Quercus tomentella
© 2020 Susan McDougall
Quercus tomentella
© 2020 Susan McDougall

Quercus turbinella    Grey oak,  Shrub live oak,  Sonoran scrub oak
rare native
Shrub

FAGACEAE

Quercus turbinella
© 2020 David Greenberger
Quercus turbinella
© 2016 James Gonsman
Quercus turbinella
© 2012 BOB CASE

Raillardella pringlei    Showy raillardella
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Raillardella pringlei
© 2019 Steve Matson
Raillardella pringlei
© 2019 Steve Matson
Raillardella pringlei
© 2019 Steve Matson

Ramalina thrausta    Angel's hair lichen
rare native
Lichen

RAMALINACEAE

Ramalina thrausta
© 2021 Heather Morrison
Ramalina thrausta
© 2021 Heather Morrison
Ramalina thrausta
© 2018 Scot Loring

Ranunculus hydrocharoides    Frog's bit buttercup,  Frogbit buttercup
rare native
Perennial herb (aquatic)

RANUNCULACEAE

Ranunculus hydrocharoides
© 1998 Larry Blakely
Ranunculus hydrocharoides
© 1998 Larry Blakely
Ranunculus hydrocharoides
© 1998 Larry Blakely

Ranunculus lobbii    Buttercup,  Lobb's aquatic buttercup,  Lobb's buttercup
rare native
Annual herb (aquatic)

RANUNCULACEAE

Ranunculus lobbii
© 2023 David Greenberger
Ranunculus lobbii
© 2024 Austin keene
Ranunculus lobbii
© 2016 Amelia Ryan

Ranunculus macounii    Macoun's buttercup
rare native
Annual, Perennial herb

RANUNCULACEAE

Ranunculus macounii
© 2009 Trent M. Draper
Ranunculus macounii
© 2009 Trent M. Draper

Rhamnus alnifolia    Alder leaved coffeeberry,  Alderleaf buckthorn,  Alderleaf coffeeberry
rare native
Shrub

RHAMNACEAE

Rhamnus alnifolia
© 2015 Steve Matson
Rhamnus alnifolia
© 2015 Steve Matson
Rhamnus alnifolia
© 2015 Steve Matson

Rhamnus pirifolia    Island redberry
rare native
Tree, Shrub

RHAMNACEAE

Rhamnus pirifolia
© 2014 Steve Matson
Rhamnus pirifolia
© 2014 Steve Matson
Rhamnus pirifolia
© 2014 Steve Matson

Rhus aromatica var. simplicifolia    Single-leaved skunkbrush
rare native
Shrub

ANACARDIACEAE

Rhus aromatica var. simplicifolia
© © 2013 Wynn Anderson
Rhus aromatica var. simplicifolia
© 2013 Keir Morse
Rhus aromatica var. simplicifolia
© 2013 Wynn Anderson

Rhynchospora alba    White beaked rush,  White beaksedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Rhynchospora alba
© 2006 Steve Matson
Rhynchospora alba
© 2006 Steve Matson
Rhynchospora alba
© 2019 SPI Botany

Rhynchospora californica    California beaked rush,  California beaksedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Rhynchospora californica
© 2019 Matt Berger
Rhynchospora californica
© 2019 Matt Berger
Rhynchospora californica
© 2019 Matt Berger

Rhynchospora capitellata    Brownish beaksedge,  Capitate beaked rush
rare native
Perennial grasslike herb

CYPERACEAE

Rhynchospora capitellata
© 2004 Dean Wm. Taylor
Rhynchospora capitellata
© 2010 Aaron Arthur

Rhynchospora globularis    Globe beaksedge
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Rhynchospora globularis
© © 2004 Steve Matson
Rhynchospora globularis
© 2004 Steve Matson

Ribes amarum var. hoffmannii    Bitter gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes amarum var. hoffmannii
© 2024 Keir Morse
Ribes amarum var. hoffmannii
© 2024 Keir Morse
Ribes amarum var. hoffmannii
© 2024 Keir Morse

Ribes canthariforme    Moreno currant
rare native
Shrub

GROSSULARIACEAE

Ribes canthariforme
© 2017 Keir Morse
Ribes canthariforme
© 2017 Keir Morse
Ribes canthariforme
© 2008 Andrew Borcher

Ribes divaricatum var. parishii    Parish's gooseberry
rare native
Shrub

GROSSULARIACEAE


Ribes hudsonianum var. petiolare    Western black currant
rare native
Shrub

GROSSULARIACEAE

Ribes hudsonianum var. petiolare
© 2015 Gerald Carr
Ribes hudsonianum var. petiolare
© 2015 Gerald Carr
Ribes hudsonianum var. petiolare
© 2015 Gerald Carr

Ribes laxiflorum    Trailing black currant
rare native
Shrub

GROSSULARIACEAE

Ribes laxiflorum
© 2019 Tristan K Cole
Ribes laxiflorum
© 2018 Claire Brown
Ribes laxiflorum
© 2018 Claire Brown

Ribes marshallii    Hupa gooseberry,  Marshall's gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes marshallii
© 2022 Dana York
Ribes marshallii
© 2022 Dana York
Ribes marshallii
© 2022 Dana York

Ribes menziesii var. ixoderme    Aromatic canyon gooseberry,  Sierra canyon gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes menziesii var. ixoderme
© 2008 Chris Winchell
Ribes menziesii var. ixoderme
© 2008 Chris Winchell

Ribes roezlii var. amictum    Sierra gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes roezlii var. amictum
© 2024 Maeve Flynn
Ribes roezlii var. amictum
© 1973 Dean Wm. Taylor

Ribes sericeum    Santa lucia gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes sericeum
© 2024 Keir Morse
Ribes sericeum
© 2024 Keir Morse
Ribes sericeum
© 2024 Keir Morse

Ribes thacherianum    Santa cruz gooseberry,  Santa cruz island gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes thacherianum
© 2014 Steve Matson
Ribes thacherianum
© 2014 Steve Matson
Ribes thacherianum
© 2014 Steve Matson

Ribes tularense    Sequoia gooseberry,  Tulare gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes tularense
© 2010 Dana York
Ribes tularense
© 2010 Dana York
Ribes tularense
© 2010 Dana York

Ribes viburnifolium    Catalina currant,  Island gooseberry,  Santa catalina island currant
rare native
Shrub

GROSSULARIACEAE

Ribes viburnifolium
© 2019 Ron Vanderhoff
Ribes viburnifolium
© 2019 Ron Vanderhoff
Ribes viburnifolium
© 2018 Aaron Echols

Ribes victoris    Victor's gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes victoris
© 2020 Tim Miller
Ribes victoris
© 2024 Chloe and Trevor Van Loon
Ribes victoris
© 2024 Chloe and Trevor Van Loon

Riella americana    American riella
rare native
Liverwort

RIELLACEAE


Robinia neomexicana    Desert locust,  New mexico locust
rare native
Tree, Shrub

FABACEAE

Robinia neomexicana
© 2014 John Doyen
Robinia neomexicana
© 2010 Lee Dittmann
Robinia neomexicana
© 2010 James M. Andre

Romanzoffia tracyi    Tracy's romanzoffia
rare native
Perennial herb

HYDROPHYLLACEAE

Romanzoffia tracyi
© 2017 Steve Matson
Romanzoffia tracyi
© 2017 Steve Matson
Romanzoffia tracyi
© 2017 Steve Matson

Romneya coulteri    Coulter's matilija poppy
rare native
Perennial herb (rhizomatous)

PAPAVERACEAE

Romneya coulteri
© 2018 Aaron Echols
Romneya coulteri
© 2022 Aaron Echols
Romneya coulteri
© 2022 Aaron Echols

Rorippa columbiae    Columbia yellow cress,  Columbian yellowcress
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Rorippa columbiae
© 2021 Donald Burk
Rorippa columbiae
© 2021 Donald Burk
Rorippa columbiae
© 2021 Donald Burk

Rorippa subumbellata    Lake tahoe yellowcress,  Tahoe yellow cress
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Rorippa subumbellata
© 2002 Steve Matson
Rorippa subumbellata
© 2002 Steve Matson
Rorippa subumbellata
© 2002 Steve Matson

rare native
Shrub

ROSACEAE

Rosa gymnocarpa var. serpentina
© 2020 Dean Wm. Taylor
Rosa gymnocarpa var. serpentina
© 2018 Scot Loring
Rosa gymnocarpa var. serpentina
© 2018 Scot Loring

Rosa minutifolia    Baja rose,  Small leaved rose
rare native
Shrub

ROSACEAE

Rosa minutifolia
© 2024 Erin Bergman
Rosa minutifolia
© 2020 Keir Morse
Rosa minutifolia
© 2020 Keir Morse

Rosa pinetorum    Pine rose
rare native
Shrub

ROSACEAE

Rosa pinetorum
© 2019 Mary Conway
Rosa pinetorum
© 2015 Dean Wm. Taylor
Rosa pinetorum
© Beatrice F. Howitt 1999 California Academy of Sciences

Rosa woodsii var. glabrata    Woods' rose
rare native
Shrub

ROSACEAE

Rosa woodsii var. glabrata
© 2017 Thomas Egan
Rosa woodsii var. glabrata
© 2017 Thomas Egan
Rosa woodsii var. glabrata
© 2017 Douglas Gordon-Blackwood

Rubus glaucifolius var. ganderi    Cuyamaca raspberry
rare native
Shrub

ROSACEAE


Rubus nivalis    Snow bramble,  Snow dwarf bramble,  Snow raspberry
rare native
Vine

ROSACEAE

Rubus nivalis
© 2023 Amy Rachkowski
Rubus nivalis
© 2015 Chris Wagner
Rubus nivalis
© 2015 Chris Wagner

Rumex venosus    Veiny dock,  Winged dock
rare native
Perennial herb

POLYGONACEAE

Rumex venosus
© 2022 Ryan O'Dell
Rumex venosus
© 2022 Ryan O'Dell
Rumex venosus
© 2022 Ryan O'Dell

Rupertia hallii    Hall's california tea,  Hall's rupertia
rare native
Perennial herb

FABACEAE

Rupertia hallii
© 2021 David popp
Rupertia hallii
© 2021 David popp
Rupertia hallii
© 2024 Chloe and Trevor Van Loon

Rupertia rigida    Parish's california tea,  Parish's rupertia
rare native
Perennial herb

FABACEAE

Rupertia rigida
© 2008 Erin Shapiro
Rupertia rigida
© 2006 Chris Wagner, SBNF
Rupertia rigida
© 2008 Thomas Stoughton

Sabulina decumbens    The Lassics sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Sabulina decumbens
© 2024 Chloe and Trevor Van Loon
Sabulina decumbens
© 2024 Chloe and Trevor Van Loon
Sabulina decumbens
© 2024 Chloe and Trevor Van Loon

Sabulina howellii    Howell's sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Sabulina howellii
© 2023 Dana York
Sabulina howellii
© 2023 Dana York
Sabulina howellii
© 2023 Dana York

Sabulina rosei    Peanut sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Sabulina rosei
© 2019 Steve Matson
Sabulina rosei
© 2019 Steve Matson
Sabulina rosei
© 2019 Steve Matson

Sabulina stolonifera    Scott Mountain sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Sabulina stolonifera
© 2021 Julie A. Kierstead
Sabulina stolonifera
© 2021 Julie A. Kierstead
Sabulina stolonifera
© 2021 Julie A. Kierstead

Sabulina stricta    bog sandwort
rare native
Perennial herb

CARYOPHYLLACEAE

Sabulina stricta
© 2016 Jim Morefield
Sabulina stricta
© 2016 Steve Matson
Sabulina stricta
© 2016 Steve Matson

Sagittaria sanfordii    Sanford's arrowhead,  Valley arrowhead
rare native
Perennial herb (rhizomatous)

ALISMATACEAE

Sagittaria sanfordii
© 2020 Ron Vanderhoff
Sagittaria sanfordii
© 2020 Ron Vanderhoff
Sagittaria sanfordii
© 2020 Ron Vanderhoff

Salix bebbiana    Bebb willow,  Gray willow
rare native
Tree

SALICACEAE

Salix bebbiana
© 2008 Louis-M. Landry
Salix bebbiana
© 2008 Robert Sivinski
Salix bebbiana
© 2008 Louis-M. Landry

Salix brachycarpa var. brachycarpa    Shortfruit willow
rare native
Shrub

SALICACEAE

Salix brachycarpa var. brachycarpa
© 2005 John Bair
Salix brachycarpa var. brachycarpa
© 2004 John Bair
Salix brachycarpa var. brachycarpa
© 2004 John Bair

Salix delnortensis    Del norte willow
rare native
Shrub

SALICACEAE

Salix delnortensis
© 2017 Steve Matson
Salix delnortensis
© 2017 Steve Matson
Salix delnortensis
© 2017 Steve Matson

Salix nivalis    Snow willow
rare native
Shrub

SALICACEAE

Salix nivalis
© 2020 David Greenberger
Salix nivalis
© 2009 Steve Matson
Salix nivalis
© 2009 Steve Matson

Saltugilia caruifolia    Caraway leaved woodland gilia
rare native
Annual herb

POLEMONIACEAE

Saltugilia caruifolia
© 2014 Keir Morse
Saltugilia caruifolia
© 2014 Keir Morse
Saltugilia caruifolia
© 2014 Keir Morse

Saltugilia latimeri    Latimer's woodland gilia
rare native
Annual herb

POLEMONIACEAE

Saltugilia latimeri
© Jordan Zylstra
Saltugilia latimeri
© Jordan Zylstra
Saltugilia latimeri
© Jordan Zylstra

Salvia brandegeei    Brandegee's sage,  Santa rosa island sage
rare native
Shrub

LAMIACEAE

Salvia brandegeei
© 2006 Steve Matson
Salvia brandegeei
© 2006 Steve Matson
Salvia brandegeei
© 2006 Steve Matson

Salvia dorrii var. incana    Desert sage,  Fleshy sage,  Great basin sage
rare native
Shrub

LAMIACEAE

Salvia dorrii var. incana
© 2006 Steve Matson
Salvia dorrii var. incana
© 2006 Steve Matson
Salvia dorrii var. incana
© 2020 Susan McDougall

Salvia eremostachya    Desert sage,  Rose sage,  Santa rosa sage
rare native
Shrub

LAMIACEAE

Salvia eremostachya
© 2019 Matt Berger
Salvia eremostachya
© 2020 Matt Berger
Salvia eremostachya
© 2017 Fred Melgert / Carla Hoegen

Salvia funerea    Death valley sage,  Woolly sage
rare native
Shrub

LAMIACEAE

Salvia funerea
© 2005 Steve Matson
Salvia funerea
© 2012 Steve Matson
Salvia funerea
© 2012 Steve Matson

Salvia greatae    Lavender sage,  Orocopia sage
rare native
Shrub

LAMIACEAE

Salvia greatae
© 2023 Matt Berger
Salvia greatae
© 2023 Eric Koberle
Salvia greatae
© 2023 Eric Koberle

Salvia munzii    Munz's sage
rare native
Shrub

LAMIACEAE

Salvia munzii
© 2020 Ron Vanderhoff
Salvia munzii
© 2020 Ron Vanderhoff
Salvia munzii
© 2020 Ron Vanderhoff

Sanguisorba officinalis    Great burnet,  Official burnet
rare native
Perennial herb (rhizomatous)

ROSACEAE

Sanguisorba officinalis
© 2008 Keir Morse
Sanguisorba officinalis
© 2008 Keir Morse
Sanguisorba officinalis
© 2013 Asa Spade

Sanicula hoffmannii    Hoffmann's blacksnakeroot,  Hoffmann's sanicle,  Hoffmann's snakeroot
rare native
Perennial herb

APIACEAE

Sanicula hoffmannii
© 2019 Ken Hickman
Sanicula hoffmannii
© 2015 David Wolfson
Sanicula hoffmannii
© 2024 Kyle Suchy

Sanicula maritima    Adobe sanicle,  Adobe snakeroot
rare native
Perennial herb

APIACEAE

Sanicula maritima
© 2019 David Wolfson
Sanicula maritima
© 2021 Kristen Nelson
Sanicula maritima
© 2021 Kristen Nelson

Sanicula peckiana    Peck's blacksnakeroot,  Peck's sanicle
rare native
Perennial herb

APIACEAE

Sanicula peckiana
© 2017 Steve Matson
Sanicula peckiana
© 2017 Steve Matson
Sanicula peckiana
© 2017 Steve Matson

Sanicula saxatilis    Devil's blacksnakeroot,  Diablo sanicle,  Rock sanicle
rare native
Perennial herb

APIACEAE

Sanicula saxatilis
© 2015 Ken Hickman
Sanicula saxatilis
© 2021 R.A. Chasey
Sanicula saxatilis
© 2023 R.A. Chasey

Sanicula tracyi    Tracy's blacksnakeroot,  Tracy's sanicle
rare native
Perennial herb

APIACEAE

Sanicula tracyi
© 2019 Gabe Cashman
Sanicula tracyi
© 2024 Chloe and Trevor Van Loon
Sanicula tracyi
© 2024 Chloe and Trevor Van Loon

Sanvitalia abertii    Abert's sanvitalia,  Abert's creeping zinnia
rare native
Annual herb

ASTERACEAE

Sanvitalia abertii
© 2014 Kathi Ellsworth
Sanvitalia abertii
© 2010 James M. Andre
Sanvitalia abertii
© 2012 Keir Morse

Sarcobatus baileyi    Bailey's greasewood
rare native
Shrub

SARCOBATACEAE

Sarcobatus baileyi
© 2009 Gary A. Monroe
Sarcobatus baileyi
© 2009 Gary A. Monroe

Saussurea americana    American saw wort
rare native
Perennial herb

ASTERACEAE

Saussurea americana
© 2003 Norman Jensen
Saussurea americana
© 2019 Matt C. Berger
Saussurea americana
© 2010 Norman Jensen

Saxifraga cespitosa    Tufted saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Saxifraga cespitosa
© 2023 Dana York
Saxifraga cespitosa
© 2023 Dana York
Saxifraga cespitosa
© 2023 Dana York

Scheuchzeria palustris    Rannoch rush
rare native
Perennial herb (rhizomatous)

SCHEUCHZERIACEAE

Scheuchzeria palustris
© 2006 Steve Matson
Scheuchzeria palustris
© 2006 Steve Matson
Scheuchzeria palustris
© 2006 Steve Matson

Schoenoplectus heterochaetus    Slender bulrush
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Schoenoplectus heterochaetus
© 2023 Matt Berger
Schoenoplectus heterochaetus
© 2023 Matt Berger
Schoenoplectus heterochaetus
© 2023 Matt Berger

Schoenoplectus subterminalis    Swaying bulrush
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Schoenoplectus subterminalis
© 2014 David popp
Schoenoplectus subterminalis
© 2024 Donald Burk
Schoenoplectus subterminalis
© 2024 Donald Burk

Schoenus nigricans    Black bogrush,  Black sedge
rare native
Perennial grasslike herb

CYPERACEAE

Schoenus nigricans
© 2006 Trent M. Draper
Schoenus nigricans
© 2006 Trent M. Draper

Scirpus pendulus    Drooping bulrush,  Rufous bulrush
rare native
Perennial grasslike herb

CYPERACEAE

Scirpus pendulus
© 2007 Keir Morse
Scirpus pendulus
© 2007 Keir Morse
Scirpus pendulus
© 2007 Keir Morse

Sclerocactus johnsonii    Johnson's devil claw,  Johnson's fishhook cactus
rare native
Shrub (stem succulent)

CACTACEAE

Sclerocactus johnsonii
© 2022 Laura Cunningham
Sclerocactus johnsonii
© Bryce Silver-Bates
Sclerocactus johnsonii
© Gary Monroe

Sclerocactus polyancistrus    Mojave fish hook cactus,  Redspined fishhook cactus
rare native
Shrub (stem succulent)

CACTACEAE

Sclerocactus polyancistrus
© 2007 Steve Matson
Sclerocactus polyancistrus
© 2007 Steve Matson
Sclerocactus polyancistrus
© 2007 Steve Matson

Scleropogon brevifolius    Burro grass,  Burrograss
rare native
Perennial grass

POACEAE

Scleropogon brevifolius
© 2013 Duncan S. Bell
Scleropogon brevifolius
© 2013 Duncan S. Bell

Scopelophila cataractae    Cataract scopelophila moss
rare native
Moss

POTTIACEAE


Scrophularia atrata    Black flowered figwort,  Darkflowered figwort
rare native
Perennial herb

SCROPHULARIACEAE

Scrophularia atrata
© 2020 David Wolfson
Scrophularia atrata
© 2018 David Wolfson
Scrophularia atrata
© 2017 Gloria Hollahan

Scrophularia villosa    Santa catalina figwort
rare native
Shrub

SCROPHULARIACEAE

Scrophularia villosa
© 2011 Dylan Neubauer
Scrophularia villosa
© 2011 Dylan Neubauer
Scrophularia villosa
© 2011 Dylan Neubauer

rare native
Perennial herb (rhizomatous)

LAMIACEAE

Scutellaria bolanderi ssp. austromontana
© 2013 Ron Vanderhoff
Scutellaria bolanderi ssp. austromontana
© 2013 Ron Vanderhoff
Scutellaria bolanderi ssp. austromontana
© 2018 Ron Vanderhoff

Scutellaria galericulata    Marsh skullcap
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Scutellaria galericulata
© 2006 Steve Matson
Scutellaria galericulata
© 2006 Steve Matson
Scutellaria galericulata
© 2006 Steve Matson

Scutellaria holmgreniorum    Holmgren's skullcap
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Scutellaria holmgreniorum
© 2009 Keir Morse
Scutellaria holmgreniorum
© 2006 Steve Matson

Scutellaria lateriflora    Blue skullcap,  Mad dog skullcap
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Scutellaria lateriflora
© 2010 Louis-M. Landry
Scutellaria lateriflora
© 2017 Julie Watson
Scutellaria lateriflora
© 2019 Julie Ann Watson

Sedella leiocarpa    Lake county stonecrop
rare native
Annual herb

CRASSULACEAE

Sedella leiocarpa
© 2024 Chloe and Trevor Van Loon
Sedella leiocarpa
© 2024 Chloe and Trevor Van Loon
Sedella leiocarpa
© 2024 Chloe and Trevor Van Loon

Sedum albomarginatum    Feather river stonecrop
rare native
Perennial herb

CRASSULACEAE

Sedum albomarginatum
© 2016 David popp
Sedum albomarginatum
© 2022 Ryan O'Dell
Sedum albomarginatum
© 2024 Matt Berger

Sedum citrinum    Blue creek stonecrop
rare native
Perennial herb

CRASSULACEAE

Sedum citrinum
© 2019 Jonathan Lee
Sedum citrinum
© 2019 Jonathan Lee
Sedum citrinum
© 2014 Peter Zika

Sedum divergens    Cascade stonecrop,  Pacific stonecrop
rare native
Perennial herb

CRASSULACEAE

Sedum divergens
© 2019 Zoya Akulova
Sedum divergens
© 2007 Matt Below
Sedum divergens
© 2007 Matt Below

Sedum laxum ssp. eastwoodiae    Red mountain sedum,  Red mountain stonecrop,  Red mtn. stonecrop
native
Perennial herb

CRASSULACEAE

Sedum laxum ssp. eastwoodiae
© 2024 Chloe and Trevor Van Loon
Sedum laxum ssp. eastwoodiae
© 2024 Ryan O'Dell
Sedum laxum ssp. eastwoodiae
© 2024 Ryan O'Dell

Sedum laxum ssp. flavidum    Rose flowered stonecrop,  Roseflower stonecrop
native
Perennial herb

CRASSULACEAE

Sedum laxum ssp. flavidum
© 2020 Jonathan Lee
Sedum laxum ssp. flavidum
© 2024 Mary Ann Machi
Sedum laxum ssp. flavidum
© 2019 Matt Berger

Sedum laxum ssp. heckneri    Heckner's stonecrop
rare native
Perennial herb

CRASSULACEAE

Sedum laxum ssp. heckneri
© 2019 Matt Berger
Sedum laxum ssp. heckneri
© 2019 Matt Berger
Sedum laxum ssp. heckneri
© 2024 Dana York

Sedum niveum    Davidson's stonecrop
rare native
Perennial herb (rhizomatous)

CRASSULACEAE

Sedum niveum
© 2021 Aaron Echols
Sedum niveum
© 2021 Aaron Echols
Sedum niveum
© 2021 Aaron Echols

Sedum oblanceolatum    Applegate stonecrop,  Oblongleaf stonecrop
rare native
Perennial herb

CRASSULACEAE

Sedum oblanceolatum
© 2023 Julie A. Kierstead
Sedum oblanceolatum
© 2023 Julie A. Kierstead
Sedum oblanceolatum
© 2023 Julie A. Kierstead

Sedum obtusatum ssp. paradisum    Canyon creek stonecrop
native
Perennial herb

CRASSULACEAE

Sedum obtusatum ssp. paradisum
© 2016 Steve Matson
Sedum obtusatum ssp. paradisum
© 2016 Steve Matson
Sedum obtusatum ssp. paradisum
© 2016 Steve Matson

Sedum pinetorum    Pine city sedum
rare native
Perennial herb

CRASSULACEAE

Sedum pinetorum
© 2021 Aaron Echols
Sedum pinetorum
© 2021 Aaron Echols
Sedum pinetorum
© 2021 Aaron Echols

Selaginella asprella    Bluish spike moss,  Bluish spikemoss
rare native

SELAGINELLACEAE

Selaginella asprella
© 2023 Mike Russler
Selaginella asprella
© 2023 R.A. Chasey
Selaginella asprella
© 2023 Mike Russler

Selaginella cinerascens    Ashy spike moss,  Mesa spikemoss
rare native

SELAGINELLACEAE

Selaginella cinerascens
© 2015 Ron Vanderhoff
Selaginella cinerascens
© 2015 Keir Morse
Selaginella cinerascens
© 2025 Ron Vanderhoff

Selaginella eremophila    Desert spike moss,  Desert spikemoss
rare native

SELAGINELLACEAE

Selaginella eremophila
© 2020 Ron Vanderhoff
Selaginella eremophila
© 2019 Matt Berger
Selaginella eremophila
© 2020 Matt Berger

Selaginella leucobryoides    Mojave spike moss,  Mojave spikemoss
rare native

SELAGINELLACEAE

Selaginella leucobryoides
© 2020 Matt Berger
Selaginella leucobryoides
© 2020 Matt Berger
Selaginella leucobryoides
© 2020 Matt Berger

Selaginella scopulorum    Rocky mountain spike-moss
rare native

SELAGINELLACEAE

Selaginella scopulorum
© 2014 Dana York
Selaginella scopulorum
© 2018 Gerald Carr
Selaginella scopulorum
© 2018 Gerald Carr

Senecio aphanactis    California groundsel,  Chaparral ragwort,  Rayless ragwort
rare native
Annual herb

ASTERACEAE

Senecio aphanactis
© 2023 Matt Berger
Senecio aphanactis
© 2019 Matt Berger
Senecio aphanactis
© 2023 Matt Berger

Senecio astephanus    San gabriel ragwort
rare native
Perennial herb

ASTERACEAE

Senecio astephanus
© 2021 Aaron Echols
Senecio astephanus
© 2021 Aaron Echols

Senecio blochmaniae    Dune ragwort
rare native
Shrub

ASTERACEAE

Senecio blochmaniae
© 2024 David Wolfson
Senecio blochmaniae
© 2020 David Greenberger
Senecio blochmaniae
© 2020 David Wolfson

Senecio clevelandii var. clevelandii    Cleveland's ragwort
rare native
Perennial herb

ASTERACEAE


rare native
Perennial herb

ASTERACEAE


Senecio hydrophiloides    Sweet marsh ragwort,  Tall groundwel
rare native
Perennial herb

ASTERACEAE

Senecio hydrophiloides
© 2004 Steve Matson
Senecio hydrophiloides
© 2004 Steve Matson
Senecio hydrophiloides
© 2004 Steve Matson

Senecio pattersonensis    Mono ragwort,  Patterson's senecio
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Senecio pattersonensis
© 2020 Paul Hankamp
Senecio pattersonensis
© 2008 Paul Preston
Senecio pattersonensis
© 2008 Paul Preston

Senna covesii    Coves' cassia,  Coves's cassia
rare native
Perennial herb

FABACEAE

Senna covesii
© 2018 Paul Hankamp
Senna covesii
© 2010 James M. Andre
Senna covesii
© 2019 Bonnie Nickel

Shepherdia canadensis    Russet buffaloberry
rare native
Tree, Shrub

ELAEAGNACEAE

Shepherdia canadensis
© 2014 Steve Matson
Shepherdia canadensis
© 2014 Steve Matson
Shepherdia canadensis
© 2014 Steve Matson

Sibara deserti    Desert rock cress,  Desert winged rockcress
rare native
Annual herb

BRASSICACEAE

Sibara deserti
© 2020 Matt Berger
Sibara deserti
© 2019 Matt Berger
Sibara deserti
© 2020 Matt Berger

Sibara filifolia    Island rockcress,  Santa cruz island rock cress,  Santa cruz island winged rockcress
rare native
Annual herb

BRASSICACEAE

Sibara filifolia
© 2008 Kim M. Klementowski
Sibara filifolia
© 2008 Kim M. Klementowski
Sibara filifolia
© 2011 Neal Kramer

Sibaropsis hammittii    Hammitt's claycress
rare native
Annual herb

BRASSICACEAE

Sibaropsis hammittii
© 2016 Ron Vanderhoff
Sibaropsis hammittii
© 2019 Ron Vanderhoff
Sibaropsis hammittii
© 2012 Ron Vanderhoff

Sidalcea calycosa ssp. rhizomata    Point reyes checkerbloom,  Pt. reyes checkerbloom,  Pt. reyes sidalcea
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea calycosa ssp. rhizomata
© 2023 Suzanne L. Weakley
Sidalcea calycosa ssp. rhizomata
© 2022 Julia Larke
Sidalcea calycosa ssp. rhizomata
© 2024 Christine Pechal

Sidalcea celata    Redding checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea celata
© 2022 Donald Burk
Sidalcea celata
© 2023 Donald Burk
Sidalcea celata
© 2023 Donald Burk

Sidalcea covillei    Owens valley checkerbloom,  Owens valley sidalcea
rare native
Perennial herb

MALVACEAE

Sidalcea covillei
© 2020 Steve Matson
Sidalcea covillei
© 2020 Steve Matson
Sidalcea covillei
© 2020 Steve Matson

Sidalcea elegans    Del norte checkerbloom
rare native
Perennial herb

MALVACEAE


Sidalcea gigantea    Giant checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea gigantea
© 2017 Dan Lubin
Sidalcea gigantea
© 2024 David popp
Sidalcea gigantea
© 2019 Julie A. Kierstead

Sidalcea hickmanii ssp. anomala    Cuesta pass checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea hickmanii ssp. anomala
© 2020 David Greenberger
Sidalcea hickmanii ssp. anomala
© 2020 David Greenberger
Sidalcea hickmanii ssp. anomala
© Geoff Burleigh

Sidalcea hickmanii ssp. hickmanii    Hickman's checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea hickmanii ssp. hickmanii
© 2022 Scott Yarger
Sidalcea hickmanii ssp. hickmanii
© 2022 Ken Hickman
Sidalcea hickmanii ssp. hickmanii
© 2022 Scott Yarger

Sidalcea hickmanii ssp. napensis    Napa checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea hickmanii ssp. napensis
© 2022 Jake Ruygt
Sidalcea hickmanii ssp. napensis
© 2018 Peter Warner
Sidalcea hickmanii ssp. napensis
© 2022 Cynthia Powell

Sidalcea hickmanii ssp. parishii    Parish's checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea hickmanii ssp. parishii
© 2022 Arlee Montalvo
Sidalcea hickmanii ssp. parishii
© 2018 Richard Spjut
Sidalcea hickmanii ssp. parishii
© 2018 Richard Spjut

Sidalcea hickmanii ssp. pillsburiensis    Lake pillsbury checkerbloom
rare native
Perennial herb

MALVACEAE


Sidalcea hickmanii ssp. viridis    Marin checkerbloom
rare native
Perennial herb

MALVACEAE


Sidalcea keckii    Keck's checkerbloom
rare native
Annual herb

MALVACEAE

Sidalcea keckii
© 2023 Charles E Peck
Sidalcea keckii
© 2024 Mike Russler
Sidalcea keckii
© 2024 Mike Russler

Sidalcea malachroides    Maple leaved checkerbloom,  Mapleleaf checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea malachroides
© 2022 Jonathan Lee
Sidalcea malachroides
© 2023 Constance McCoy
Sidalcea malachroides
© 2016 Hayley Ross

Sidalcea malviflora ssp. dolosa    Deceitful checker mallow,  Dwarf checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea malviflora ssp. dolosa
© 2009 Thomas Stoughton
Sidalcea malviflora ssp. dolosa
© 2009 Thomas Stoughton
Sidalcea malviflora ssp. dolosa
© 2009 Thomas Stoughton

Sidalcea malviflora ssp. patula    Siskiyou checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea malviflora ssp. patula
© 2023 Mary Ann Machi
Sidalcea malviflora ssp. patula
© 2023 Claire Brown
Sidalcea malviflora ssp. patula
© 2023 Claire Brown

Sidalcea malviflora ssp. purpurea    Dwarf checkerbloom,  Purple checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea malviflora ssp. purpurea
© 2021 Mary Sue Ittner
Sidalcea malviflora ssp. purpurea
© 2023 Austin keene
Sidalcea malviflora ssp. purpurea
© 2017 Mary Sue Ittner

Sidalcea multifida    Cut leaf checker mallow,  Cutleaf checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea multifida
© 2017 Alison Sheehey
Sidalcea multifida
© 2022 Eric Koberle
Sidalcea multifida
© 2018 Ashley Olive

Sidalcea neomexicana    Mountain sidalcea,  Salt spring checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea neomexicana
© 2011 Jeffrey Hapeman
Sidalcea neomexicana
© 2021 Jeffrey Hapeman
Sidalcea neomexicana
© 2019 Richard Spjut

Sidalcea oregana ssp. eximia    Coast checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea oregana ssp. eximia
© 2015 Adam Canter
Sidalcea oregana ssp. eximia
© 2022 Macy Budesilich
Sidalcea oregana ssp. eximia
© 2022 Macy Budesilich

Sidalcea oregana ssp. hydrophila    Marsh checkerbloom,  Oregon checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea oregana ssp. hydrophila
© 2005 Jennifer L. Kalt

Sidalcea oregana ssp. valida    Kenwood marsh checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea oregana ssp. valida
© 2016 george jackson
Sidalcea oregana ssp. valida
© 2016 george jackson
Sidalcea oregana ssp. valida
© 2016 george jackson

Sidalcea pedata    Bird foot checkerbloom,  Birdfoot checkerbloom
rare native
Perennial herb

MALVACEAE

Sidalcea pedata
© 2016 Diane Etchison
Sidalcea pedata
© 2017 Ron Vanderhoff
Sidalcea pedata
© 2023 Diane Etchison

Sidalcea robusta    Butte county checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea robusta
© 2022 Robert Whitaker
Sidalcea robusta
© 2022 Robert Whitaker
Sidalcea robusta
© 2023 Alaine Arslan

Sidalcea stipularis    Scadden flat checkerbloom
rare native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea stipularis
© 2000 John Game
Sidalcea stipularis
© Rick York and CNPS
Sidalcea stipularis
© 2008 Virginia Moran

Sidotheca caryophylloides    Chickweed oxytheca
rare native
Annual herb

POLYGONACEAE

Sidotheca caryophylloides
© 2021 Manzanita Dictionary
Sidotheca caryophylloides
© 2021 Manzanita Dictionary
Sidotheca caryophylloides
© 2016 Michelle Tollett

Sidotheca emarginata    White margined oxytheca
rare native
Annual herb

POLYGONACEAE

Sidotheca emarginata
© 2019 Matt Berger
Sidotheca emarginata
© 2019 Matt Berger
Sidotheca emarginata
© 2019 Matt Berger

Silene aperta    Bare campion,  Naked catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene aperta
© 2020 Matt Berger
Silene aperta
© 2022 Mike Russler
Silene aperta
© 2022 Mike Russler

Silene campanulata ssp. campanulata    Red mountain catchfly,  Red mtn. catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene campanulata ssp. campanulata
© 2019 John Game
Silene campanulata ssp. campanulata
© 2015 Cherilyn Burton
Silene campanulata ssp. campanulata
© 2015 Cherilyn Burton

Silene krantzii    Krantz's catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene krantzii
© 2021 Aaron Echols
Silene krantzii
© 2012 Duncan S. Bell
Silene krantzii
© 2021 Aaron Echols

Silene marmorensis    Marble mountain catchfly,  Marble mtn. campion
rare native
Perennial herb

CARYOPHYLLACEAE

Silene marmorensis
© 2024 Chloe and Trevor Van Loon
Silene marmorensis
© 2021 Dana York
Silene marmorensis
© 2024 Chloe and Trevor Van Loon

Silene occidentalis ssp. longistipitata    Western campion,  Western catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene occidentalis ssp. longistipitata
© 2005 Dean Wm. Taylor
Silene occidentalis ssp. longistipitata
© 2013 Kirsten Bovee
Silene occidentalis ssp. longistipitata
© 2018 Sierra Pacific Industries

Silene occidentalis ssp. occidentalis    Western campion,  Western catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene occidentalis ssp. occidentalis
© 2019 Matt Berger
Silene occidentalis ssp. occidentalis
© 2019 Matt Berger
Silene occidentalis ssp. occidentalis
© 2019 Matt Berger

Silene oregana    Oregon campion,  Oregon silene
rare native
Perennial herb

CARYOPHYLLACEAE

Silene oregana
© 2012 Gary A. Monroe
Silene oregana
© 2012 Gary A. Monroe
Silene oregana
© 2019 Matt C. Berger

Silene salmonacea    Klamath mountain catchfly
rare native
Perennial herb

CARYOPHYLLACEAE

Silene salmonacea
© 2021 Jamie Spielmann
Silene salmonacea
© 2022 joaquin hale
Silene salmonacea
© 2021 Jamie Spielmann

Silene scouleri ssp. scouleri    Simple campion
rare native
Perennial herb

CARYOPHYLLACEAE

Silene scouleri ssp. scouleri
© 2021 Mike Russler
Silene scouleri ssp. scouleri
© 2022 Cynthia Powell
Silene scouleri ssp. scouleri
© 2021 Mike Russler

Silene serpentinicola    Serpentine catchfly
rare native
Perennial herb (rhizomatous)

CARYOPHYLLACEAE

Silene serpentinicola
© 2023 Dana York
Silene serpentinicola
© 2023 Dana York
Silene serpentinicola
© 2023 Dana York

Silene suksdorfii    Cascade alpine campion,  Cascade alpine catchfly,  Suksdorf's silene
rare native
Perennial herb

CARYOPHYLLACEAE

Silene suksdorfii
© 2019 David Greenberger
Silene suksdorfii
© 2023 Jamie Spielmann
Silene suksdorfii
© 2019 David Greenberger

Silene verecunda ssp. verecunda    Dolores campion,  San francisco campion
rare native
Perennial herb

CARYOPHYLLACEAE

Silene verecunda ssp. verecunda
© 2021 Dylan Neubauer
Silene verecunda ssp. verecunda
© 2014 Toni Corelli
Silene verecunda ssp. verecunda
© 2012 Michael Perlmutter

Sisyrinchium funereum    Death valley blue eyed grass,  Funeral mountain blue eyed grass
rare native
Perennial herb

IRIDACEAE

Sisyrinchium funereum
© 2012 Steve Matson
Sisyrinchium funereum
© 2012 Steve Matson
Sisyrinchium funereum
© 2012 Steve Matson

Sisyrinchium hitchcockii    Hitchcock's blue eyed grass
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Sisyrinchium hitchcockii
© 2021 Dana York
Sisyrinchium hitchcockii
© 2021 Dana York

Sisyrinchium longipes    Timberland blue eyed grass
rare native
Perennial herb

IRIDACEAE

Sisyrinchium longipes
© 2020 Margarita Orlova
Sisyrinchium longipes
© 2017 Ron Vanderhoff
Sisyrinchium longipes
© 2017 James Bailey

Smelowskia ovalis    Alpine false candytuft
rare native
Perennial herb

BRASSICACEAE

Smelowskia ovalis
© 2019 Steve Matson
Smelowskia ovalis
© 2019 Steve Matson
Smelowskia ovalis
© 2019 Steve Matson

Smilax jamesii    English peak greenbriar,  English peak greenbrier
rare native
Perennial herb (rhizomatous)

SMILACACEAE

Smilax jamesii
© 2015 Steve Matson
Smilax jamesii
© 2015 Steve Matson
Smilax jamesii
© 2015 Steve Matson

Solanum clokeyi    Clokey's nightshade,  Island nightshade,  Santa cruz id. nightshade
rare native
Perennial herb

SOLANACEAE

Solanum clokeyi
© 2014 Steve Matson
Solanum clokeyi
© 2018 Brendan Mannle
Solanum clokeyi
© 2014 Steve Matson

Solanum wallacei    Catalina nightshade,  Northern island nightshade,  Wallace's nightshade
rare native
Perennial herb

SOLANACEAE

Solanum wallacei
© 2025 Ron Vanderhoff
Solanum wallacei
© 2019 Ron Vanderhoff
Solanum wallacei
© 2014 Steve Matson

Solidago guiradonis    Guirado goldenrod,  Guirado's goldenrod
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Solidago guiradonis
© 2021 Mike Russler
Solidago guiradonis
© 2021 Mike Russler
Solidago guiradonis
© 2021 Mike Russler

Solidago lepida var. salebrosa    Western goldenrod
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Solidago lepida var. salebrosa
© 2007 Dr. Amadej Trnkoczy
Solidago lepida var. salebrosa
© 2011 Wynn Anderson

Solorina spongiosa    Fringed chocolate chip lichen
rare native
Lichen

PELTIGERACEAE

Solorina spongiosa
© 2016 Scot Loring
Solorina spongiosa
© 2016 Scot Loring
Solorina spongiosa
© 2016 Scot Loring

Sparganium natans    Small bur reed
rare native
Perennial herb (rhizomatous)

TYPHACEAE

Sparganium natans
© 2018 Julie Kierstead
Sparganium natans
© 2023 Dana York
Sparganium natans
© 2018 Todd Ramsden

Spartina gracilis    Alkali cord grass,  Alkali cordgrass
rare native
Perennial grass (rhizomatous)

POACEAE

Spartina gracilis
© 2020 Matt Berger
Spartina gracilis
© 2005 Steve Matson
Spartina gracilis
© 2005 Steve Matson

Spergularia canadensis var. occidentalis    Northern sand spurrey,  Western sandspurry
rare native
Annual herb

CARYOPHYLLACEAE

Spergularia canadensis var. occidentalis
© 2008 Gerald D. Carr
Spergularia canadensis var. occidentalis
© 2008 Gerald D. Carr
Spergularia canadensis var. occidentalis
© 2008 Gerald D. Carr

Spergularia macrotheca var. longistyla    Long styled sand spurrey,  Sticky sandspurry
rare native
Perennial herb

CARYOPHYLLACEAE

Spergularia macrotheca var. longistyla
© 2019 Steve Matson
Spergularia macrotheca var. longistyla
© 2019 Steve Matson
Spergularia macrotheca var. longistyla
© 2019 Steve Matson

Spermolepis gigantea    desert scaleseed
rare native
Annual herb

APIACEAE

Spermolepis gigantea
© 2011 Steve Matson
Spermolepis gigantea
© 2011 Steve Matson

Spermolepis infernensis    Hellhole scaleseed
rare native
Annual herb

APIACEAE

Spermolepis infernensis
© 2020 Matt Berger
Spermolepis infernensis
© 2020 Matt Berger
Spermolepis infernensis
© 2020 Matt Berger

Spermolepis lateriflora    western bristly scaleseed
rare native
Annual herb

APIACEAE

Spermolepis lateriflora
© 2020 Richard Spellenberg
Spermolepis lateriflora
© 2020 Richard Spellenberg

Sphaeralcea grossulariifolia    Gooseberryleaf globemallow
rare native
Perennial herb, Shrub

MALVACEAE

Sphaeralcea grossulariifolia
© 2015 Ron Wolf
Sphaeralcea grossulariifolia
© 2006 James M. Andre
Sphaeralcea grossulariifolia
© 2010 Mary Winter

Sphaeralcea munroana    Munro's globemallow
rare native
Perennial herb

MALVACEAE

Sphaeralcea munroana
© 2010 Gary A. Monroe
Sphaeralcea munroana
© 2010 Gary A. Monroe
Sphaeralcea munroana
© 2012 Gary A. Monroe

Sphaeralcea rusbyi var. eremicola    Rusby's desert mallow
rare native
Perennial herb

MALVACEAE

Sphaeralcea rusbyi var. eremicola
© 2011 Keir Morse
Sphaeralcea rusbyi var. eremicola
© 2011 Keir Morse
Sphaeralcea rusbyi var. eremicola
© 2010 James M. Andre

Sphaerocarpos drewei    Bottle liverwort
rare native
Liverwort

SPHAEROCARPACEAE

Sphaerocarpos drewei
© University and Jepson Herbaria

Sphaeromeria potentilloides var. nitrophila    Cinquefoil tansy,  Fivefinger chickensage
rare native
Perennial herb

ASTERACEAE

Sphaeromeria potentilloides var. nitrophila
© 2007 Steve Matson
Sphaeromeria potentilloides var. nitrophila
© 2007 Steve Matson
Sphaeromeria potentilloides var. nitrophila
© 2005 Steve Matson

Sphenopholis obtusata    Prairie wedge grass,  Prairie wedgescale,  Wedgegrass
rare native
Perennial grass

POACEAE

Sphenopholis obtusata
© 2009 Steve Matson
Sphenopholis obtusata
© 2009 Steve Matson
Sphenopholis obtusata
© 2023 Matt C. Berger

Stachys pilosa    Prairie woundwort
rare native
Perennial herb

LAMIACEAE

Stachys pilosa
© 2013 Bob Case
Stachys pilosa
© 2013 Bob Case
Stachys pilosa
© 2009 Mary Winter

Stanleya viridiflora    Green flowered prince's plume,  Green princesplume
rare native
Perennial herb

BRASSICACEAE

Stanleya viridiflora
© 2021 Sarah Tona
Stanleya viridiflora
© 2014 Mary Winter

Stebbinsoseris decipiens    Santa Cruz microseris
rare native
Annual herb

ASTERACEAE

Stebbinsoseris decipiens
© 2020 Susan Lambrecht
Stebbinsoseris decipiens
© 2021 Dylan Neubauer
Stebbinsoseris decipiens
© 2023 Dylan Neubauer

Stellaria littoralis    Beach starwort,  Shore chickweed,  Shore starwort
rare native
Perennial herb

CARYOPHYLLACEAE

Stellaria littoralis
© 2017 David Greenberger
Stellaria littoralis
© 2023 R.A. Chasey
Stellaria littoralis
© 2023 R.A. Chasey

Stellaria longifolia    Long leaved starwort,  Longleaf starwort
rare native
Perennial herb (rhizomatous)

CARYOPHYLLACEAE

Stellaria longifolia
© 2009 Sierra Pacific Industries
Stellaria longifolia
© 2009 Sierra Pacific Industries
Stellaria longifolia
© 2009 Sierra Pacific Industries

Stellaria obtusa    Obtuse starwort,  Rocky mountain chickweed
rare native
Perennial herb (rhizomatous)

CARYOPHYLLACEAE

Stellaria obtusa
© 2024 joaquin hale
Stellaria obtusa
© 2023 Matt Berger
Stellaria obtusa
© 2023 Matt Berger

Stemodia durantifolia    White woolly stemodia,  Whitewoolly twintip
rare native
Perennial herb

PLANTAGINACEAE

Stemodia durantifolia
© 2017 Keir Morse
Stemodia durantifolia
© 2017 Keir Morse
Stemodia durantifolia
© 2017 Keir Morse

rare native
Perennial herb

ASTERACEAE

Stenotus lanuginosus var. lanuginosus
© 2015 Sierra Pacific Industries
Stenotus lanuginosus var. lanuginosus
© 2015 Sierra Pacific Industries
Stenotus lanuginosus var. lanuginosus
© 2015 Sierra Pacific Industries

Stipa arida    Mormon needle grass
rare native
Perennial grass

POACEAE

Stipa arida
© 2020 Matt Berger
Stipa arida
© 2016 Dana York
Stipa arida
© 2023 Dana York

Stipa diegoensis    San diego county needle grass
rare native
Perennial grass

POACEAE

Stipa diegoensis
© 2006 Steve Matson
Stipa diegoensis
© 2006 Steve Matson
Stipa diegoensis
© 2006 Steve Matson

Stipa divaricata    Small-flowered rice grass
rare native
Perennial grass

POACEAE

Stipa divaricata
© 2016 Steve Matson
Stipa divaricata
© 2016 Steve Matson
Stipa divaricata
© 2016 Steve Matson

Stipa exigua    Little ricegrass
rare native
Perennial grass

POACEAE

Stipa exigua
© 2011 Steve Matson
Stipa exigua
© 2011 Steve Matson
Stipa exigua
© 2023 Matt C. Berger

Stipa lemmonii var. pubescens    Pubescent needle grass
rare native
Perennial grass

POACEAE


Streptanthus albidus ssp. albidus    Metcalf canyon jewel flower,  Metcalf canyon jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus albidus ssp. albidus
© 2009 Lech Naumovich
Streptanthus albidus ssp. albidus
© 1995 Dean Wm. Taylor
Streptanthus albidus ssp. albidus
© 2015 Neal Kramer

Streptanthus albidus ssp. peramoenus    Most beautiful jewel flower,  Most beautiful jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus albidus ssp. peramoenus
© 2024 Mike Russler
Streptanthus albidus ssp. peramoenus
© 2024 Mike Russler
Streptanthus albidus ssp. peramoenus
© 2024 Mike Russler

Streptanthus barbiger    Bearded jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus barbiger
© 2020 Joey Santore
Streptanthus barbiger
© 2020 Joey Santore
Streptanthus barbiger
© 2020 Terrence Gosliner

Streptanthus batrachopus    Mt. Tamalpais jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus batrachopus
© 2020 Hunter Breck
Streptanthus batrachopus
© 2024 Chloe and Trevor Van Loon
Streptanthus batrachopus
© 2019 David Greenberger

Streptanthus bernardinus    Laguna mountain jewelflower,  Laguna mtns. jewel flower
rare native
Perennial herb

BRASSICACEAE

Streptanthus bernardinus
© 2011 Jeffrey Hapeman
Streptanthus bernardinus
© 2019 Diane Etchison
Streptanthus bernardinus
© 2017 Janith Johnson

Streptanthus brachiatus ssp. brachiatus    Socrates mine jewel flower,  Socrates mine jewelflower
rare native
Perennial herb

BRASSICACEAE

Streptanthus brachiatus ssp. brachiatus
© 2020 David Greenberger
Streptanthus brachiatus ssp. brachiatus
© 2021 R.A. Chasey
Streptanthus brachiatus ssp. brachiatus
© 2017 Don Loarie

Streptanthus brachiatus ssp. hoffmanii    Freed's jewel flower,  Socrates mine jewelflower
rare native
Perennial herb

BRASSICACEAE

Streptanthus brachiatus ssp. hoffmanii
© 2019 R.A. Chasey
Streptanthus brachiatus ssp. hoffmanii
© 2017 Don Loarie
Streptanthus brachiatus ssp. hoffmanii
© 2017 Don Loarie

Streptanthus callistus    Mt. hamilton jewel flower,  Mt. hamilton jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus callistus
© 2019 John Game
Streptanthus callistus
© 2019 Joey Santore
Streptanthus callistus
© 2015 stephen rosenthal

Streptanthus campestris    Southern jewel flower,  Southern jewelflower,  Southern streptanthus
rare native
Perennial herb

BRASSICACEAE

Streptanthus campestris
© 2019 Matt Berger
Streptanthus campestris
© 2020 Matt Berger
Streptanthus campestris
© 2020 Matt Berger

Streptanthus cordatus var. piutensis    Heartleaf twistflower,  Piute mtns. jewel flower
rare native
Perennial herb

BRASSICACEAE

Streptanthus cordatus var. piutensis
© 2023 Liz Block
Streptanthus cordatus var. piutensis
© 2024 Richard Spjut
Streptanthus cordatus var. piutensis
© 2024 Richard Spjut

Streptanthus drepanoides    Sickle fruit jewel flower,  Sicklefruit jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus drepanoides
© 2018 Julie Kierstead Nelson
Streptanthus drepanoides
© 2022 David popp
Streptanthus drepanoides
© 2023 Ryan O'Dell

Streptanthus farnsworthianus    Farnsworth's jewel flower,  Farnsworth's jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus farnsworthianus
© 2010 Aaron Schusteff
Streptanthus farnsworthianus
© 2010 Aaron Schusteff
Streptanthus farnsworthianus
© 2023 Morgan Stickrod

Streptanthus fenestratus    Tehipite valley jewel flower,  Tehipite valley jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus fenestratus
© 2018 Steve Matson
Streptanthus fenestratus
© 2018 Steve Matson
Streptanthus fenestratus
© 2018 Steve Matson

Streptanthus glandulosus ssp. hoffmanii    Hoffman's bristly jewel-flower
rare native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. hoffmanii
© 2015 Hayley Ross
Streptanthus glandulosus ssp. hoffmanii
© 2021 R.A. Chasey
Streptanthus glandulosus ssp. hoffmanii
© 2019 R.A. Chasey

Streptanthus glandulosus ssp. niger    Tiburon jewel-flower
rare native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. niger
© 2022 Michael Heine
Streptanthus glandulosus ssp. niger
© 2016 Jane Huber
Streptanthus glandulosus ssp. niger
© 2021 R.A. Chasey

Streptanthus glandulosus ssp. pulchellus    Mt. Tamalpais jewel flower
rare native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. pulchellus
© 2020 David Greenberger
Streptanthus glandulosus ssp. pulchellus
© 2019 David Greenberger
Streptanthus glandulosus ssp. pulchellus
© 2022 R.A. Chasey

Streptanthus gracilis    Alpine jewel flower,  Alpine jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus gracilis
© 2023 Chloe and Trevor Van Loon
Streptanthus gracilis
© 2023 Chloe and Trevor Van Loon
Streptanthus gracilis
© 2023 Chloe and Trevor Van Loon

Streptanthus hesperidis    Green jewel-flower
rare native
Annual herb

BRASSICACEAE

Streptanthus hesperidis
© 2021 Charles Russell
Streptanthus hesperidis
© 2023 Morgan Stickrod
Streptanthus hesperidis
© 2021 Charles Russell

Streptanthus hispidus    Mt. diablo jewel flower,  Mt. diablo jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus hispidus
© 2017 John Game
Streptanthus hispidus
© 2018 Rebecca Schoenenberger
Streptanthus hispidus
© 2021 Damon Tighe

Streptanthus howellii    Howell's jewel flower,  Howell's jewelflower
rare native
Perennial herb

BRASSICACEAE

Streptanthus howellii
© 2024 Ryan O'Dell
Streptanthus howellii
© 2024 Ryan O'Dell
Streptanthus howellii
© 2024 Ryan O'Dell

Streptanthus insignis ssp. lyonii    Arburua ranch jewel flower,  Arburua ranch jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus insignis ssp. lyonii
© 2022 Ryan O'Dell
Streptanthus insignis ssp. lyonii
© 2022 Ryan O'Dell
Streptanthus insignis ssp. lyonii
© 2022 Ryan O'Dell

Streptanthus longisiliquus    Long-fruit jewel-flower
rare native
Perennial herb

BRASSICACEAE

Streptanthus longisiliquus
© 2024 Ryan O'Dell
Streptanthus longisiliquus
© 2019 David popp
Streptanthus longisiliquus
© 2024 David popp

Streptanthus morrisonii ssp. elatus    Three peaks jewel flower,  Three peaks jewelflower
rare native
Perennial herb

BRASSICACEAE

Streptanthus morrisonii ssp. elatus
© 2022 Ryan O'Dell
Streptanthus morrisonii ssp. elatus
© 2022 Ryan O'Dell
Streptanthus morrisonii ssp. elatus
© 2023 Ryan O'Dell

Streptanthus morrisonii ssp. hirtiflorus    Dorr's cabin jewel flower,  Dorr's cabin jewelflower
rare native
Perennial herb

BRASSICACEAE


Streptanthus morrisonii ssp. kruckebergii    Kruckeberg's jewel flower,  Krukeberg's jewelflower
rare native
Perennial herb

BRASSICACEAE


Streptanthus morrisonii ssp. morrisonii    Morrison's jewel flower,  Morrison's jewelflower
rare native
Perennial herb

BRASSICACEAE


Streptanthus oblanceolatus    Trinity river jewel-flower
rare native
Perennial herb

BRASSICACEAE

Streptanthus oblanceolatus
© 2009 Dana York
Streptanthus oblanceolatus
© 2023 Mary Ann Machi
Streptanthus oblanceolatus
© 2023 Morgan Stickrod

Streptanthus oliganthus    Masonic mountain jewelflower,  Masonic mtn. jewel flower
rare native
Perennial herb

BRASSICACEAE

Streptanthus oliganthus
© 2012 Lynn Robertson
Streptanthus oliganthus
© 2023 Chloe and Trevor Van Loon
Streptanthus oliganthus
© 2024 Ryan O'Dell

Streptanthus tortuosus ssp. truei    True's mountain jewelflower
rare native
Perennial herb

BRASSICACEAE

Streptanthus tortuosus ssp. truei
© 2020 Shane Hanofee
Streptanthus tortuosus ssp. truei
© 2017 SPI Botany
Streptanthus tortuosus ssp. truei
© 2022 Rianna Humble

Streptanthus vernalis    Early jewel-flower
rare native
Annual herb

BRASSICACEAE

Streptanthus vernalis
© 2019 Joey Santore
Streptanthus vernalis
© 2019 Joey Santore
Streptanthus vernalis
© 2019 Joey Santore

Stuckenia filiformis ssp. alpina    Fineleaf pondweed
rare native
Perennial herb

POTAMOGETONACEAE

Stuckenia filiformis ssp. alpina
© 2016 Robert L. Carr
Stuckenia filiformis ssp. alpina
© 2016 Robert L. Carr
Stuckenia filiformis ssp. alpina
© 2016 Robert L. Carr

Stylocline citroleum    Oil nest straw,  Oil neststraw
rare native
Annual herb

ASTERACEAE

Stylocline citroleum
© 2013 Chris Winchell
Stylocline citroleum
© 2013 Chris Winchell

Stylocline masonii    Mason neststraw,  Mason's neststraw
rare native
Annual herb

ASTERACEAE

Stylocline masonii
© 2024 Ryan O'Dell
Stylocline masonii
© 2024 Ryan O'Dell
Stylocline masonii
© 2024 Ryan O'Dell

Stylocline sonorensis    Mesquite neststraw,  Sonoran neststraw
rare native
Annual herb

ASTERACEAE


Suaeda californica    California seablite
rare native
Shrub

CHENOPODIACEAE

Suaeda californica
© 2022 Cynthia Powell
Suaeda californica
© 2020 R.A. Chasey
Suaeda californica
© 2024 Mike Russler

Suaeda esteroa    Estuary seablite
rare native
Perennial herb

CHENOPODIACEAE

Suaeda esteroa
© 2023 Ron Vanderhoff
Suaeda esteroa
© 2021 Ron Vanderhoff
Suaeda esteroa
© 2016 Keir Morse

Suaeda occidentalis    Western horned sea blite
rare native
Annual herb

CHENOPODIACEAE

Suaeda occidentalis
© 2017 Steve Matson
Suaeda occidentalis
© 2017 Steve Matson
Suaeda occidentalis
© 2017 Steve Matson

Suaeda taxifolia    Woolly seablite
rare native
Shrub

CHENOPODIACEAE

Suaeda taxifolia
© 2019 Diane Etchison
Suaeda taxifolia
© 2020 Ron Vanderhoff
Suaeda taxifolia
© 2020 Ron Vanderhoff

rare native
Annual herb

BRASSICACEAE

Subularia aquatica ssp. americana
© 2008 Steve Matson
Subularia aquatica ssp. americana
© 2008 Steve Matson
Subularia aquatica ssp. americana
© 2008 Steve Matson

Sulcaria isidiifera    Splitting yarn lichen
rare native
Lichen

ALECTORIACEAE

Sulcaria isidiifera
© Jason Dart
Sulcaria isidiifera
© Eli Balderas
Sulcaria isidiifera
© Eli Balderas

Swallenia alexandrae    Eureka dunegrass,  Eureka valley dune grass
rare native
Perennial grass (rhizomatous)

POACEAE

Swallenia alexandrae
© 2022 Dana York
Swallenia alexandrae
© 2025 richard mcneill
Swallenia alexandrae
© 2020 Matt Berger

Symphyotrichum defoliatum    San bernardino aster
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Symphyotrichum defoliatum
© 2023 Ron Vanderhoff
Symphyotrichum defoliatum
© 2023 Ron Vanderhoff
Symphyotrichum defoliatum
© 2017 Ron Vanderhoff

Symphyotrichum greatae    Greata's aster
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Symphyotrichum greatae
© 2014 Garth Wadsworth
Symphyotrichum greatae
© 2019 Manzanita Dictionary
Symphyotrichum greatae
© 2014 Garth Wadsworth

Symphyotrichum lentum    Suisun marsh aster
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Symphyotrichum lentum
© 2021 John Game
Symphyotrichum lentum
© 2022 Morgan Stickrod
Symphyotrichum lentum
© 2022 Morgan Stickrod

rare native
Perennial herb (rhizomatous)

PLANTAGINACEAE

Synthyris missurica ssp. missurica
© 2016 Matt Berry
Synthyris missurica ssp. missurica
© 2023 Alaine Arslan
Synthyris missurica ssp. missurica
© 2023 Alaine Arslan

Syntrichopappus lemmonii    Lemmon's syntrichopappus,  Pinkray fremont's gold
rare native
Annual herb

ASTERACEAE

Syntrichopappus lemmonii
© 2014 RT Hawke
Syntrichopappus lemmonii
© 2024 Erin Bergman
Syntrichopappus lemmonii
© 2024 Erin Bergman

Systenotheca vortriedei    Vortriede's spineflower
rare native
Annual herb

POLYGONACEAE

Systenotheca vortriedei
© 2022 Scott Yarger
Systenotheca vortriedei
© 2022 Scott Yarger
Systenotheca vortriedei
© 2022 Scott Yarger

Taraxacum californicum    California dandelion
rare native
Perennial herb

ASTERACEAE

Taraxacum californicum
© 2023 Ryan O'Dell
Taraxacum californicum
© 2023 Ryan O'Dell
Taraxacum californicum
© 2023 Ryan O'Dell

Taraxacum ceratophorum    Horned dandelion
rare native
Annual herb

ASTERACEAE

Taraxacum ceratophorum
© 2016 Steve Matson
Taraxacum ceratophorum
© 2016 Steve Matson
Taraxacum ceratophorum
© 2016 Steve Matson

Tauschia glauca    Glaucous tauschia,  Glaucous umbrellawort
rare native
Perennial herb

APIACEAE

Tauschia glauca
© 2025 Mike Russler
Tauschia glauca
© 2025 Mike Russler
Tauschia glauca
© 2022 joaquin hale

Tauschia howellii    Howell's tauschia,  Howell's umbrellawort
rare native
Perennial herb

APIACEAE

Tauschia howellii
© 2020 Mary Patterson
Tauschia howellii
© 2020 Mary Patterson
Tauschia howellii
© 2016 Dana York

Tetracoccus dioicus    Parry's tetracoccus,  Red shrubby spurge
rare native
Shrub

PICRODENDRACEAE

Tetracoccus dioicus
© 2015 Brett Bigelow
Tetracoccus dioicus
© 2023 Kristen Richardson
Tetracoccus dioicus
© Lauren

Tetracoccus hallii    Hall's purple bush,  Hall's shrubby spurge,  Holly leaved spurge
rare native
Shrub

PICRODENDRACEAE

Tetracoccus hallii
© 2010 Steve Matson
Tetracoccus hallii
© 2010 Steve Matson
Tetracoccus hallii
© 2010 Steve Matson

Tetracoccus ilicifolius    Holly leaved tetracoccus,  Hollybush
rare native
Shrub

PICRODENDRACEAE

Tetracoccus ilicifolius
© 2020 Matt Berger
Tetracoccus ilicifolius
© 2020 Matt Berger
Tetracoccus ilicifolius
© 2020 Matt Berger

Tetradymia argyraea    Striped cottonthorn,  Striped horsebrush
rare native
Shrub

ASTERACEAE

Tetradymia argyraea
© 2024 Chloe and Trevor Van Loon
Tetradymia argyraea
© 2024 Chloe and Trevor Van Loon
Tetradymia argyraea
© 2024 Chloe and Trevor Van Loon

Tetradymia tetrameres    Four parted horsebrush,  Fourpart horsebrush
rare native
Shrub (stem succulent)

ASTERACEAE

Tetradymia tetrameres
© 2011 Steve Matson
Tetradymia tetrameres
© 2011 Steve Matson
Tetradymia tetrameres
© 2011 Steve Matson

Teucrium cubense ssp. depressum    Lou germander,  Small coastal germander
rare native
Annual herb

LAMIACEAE

Teucrium cubense ssp. depressum
© 2015 Wynn Anderson
Teucrium cubense ssp. depressum
© © 2015 Wynn Anderson
Teucrium cubense ssp. depressum
© 2015 Wynn Anderson

Teucrium glandulosum    Common germander,  Germander,  Sticky teucrium
rare native
Shrub

LAMIACEAE

Teucrium glandulosum
© 2018 Brian Keelan

Texosporium sancti-jacobi    Woven-spored lichen
rare native
Lichen

CALICIACEAE

Texosporium sancti-jacobi
© Keir Morse
Texosporium sancti-jacobi
© 2014 Scot Loring
Texosporium sancti-jacobi
© 2014 Scot Loring

Thalictrum alpinum    Alpine meadow rue
rare native
Perennial herb

RANUNCULACEAE

Thalictrum alpinum
© 2016 Steve Matson
Thalictrum alpinum
© 2016 Steve Matson
Thalictrum alpinum
© 2016 Steve Matson

Thamnolia vermicularis    Whiteworm lichen
rare native
Lichen

ICMADOPHILACEAE

Thamnolia vermicularis
© 2018 Scot Loring
Thamnolia vermicularis
© 2018 Scot Loring
Thamnolia vermicularis
© Liam O'Brien

Thelypodium brachycarpum    Short podded thelypodium,  Shortpod thelypody
rare native
Perennial herb

BRASSICACEAE

Thelypodium brachycarpum
© 2020 R.A. Chasey
Thelypodium brachycarpum
© 2019 Matt Berger
Thelypodium brachycarpum
© 2020 Joey Santore

Thelypodium howellii ssp. howellii    Howell's thelypodium,  Howell's thelypody
rare native
Perennial herb

BRASSICACEAE

Thelypodium howellii ssp. howellii
© 2024 Matt Berger
Thelypodium howellii ssp. howellii
© 2024 Matt Berger
Thelypodium howellii ssp. howellii
© 2024 Matt Berger

Thelypodium integrifolium ssp. complanatum    Entireleaved thelypody,  Lavender entire leaved thelypodium
rare native
Perennial herb

BRASSICACEAE

Thelypodium integrifolium ssp. complanatum
© 2011 Steve Matson
Thelypodium integrifolium ssp. complanatum
© 2012 Steve Matson
Thelypodium integrifolium ssp. complanatum
© 2012 Steve Matson

Thelypodium milleflorum    Manyflower thelypody,  Yarrow leaf thelypodium
rare native
Perennial herb

BRASSICACEAE

Thelypodium milleflorum
© 2016 Steve Matson
Thelypodium milleflorum
© 2016 Steve Matson
Thelypodium milleflorum
© 2016 Steve Matson

Thelypodium stenopetalum    Slender petaled thelypodium,  Slenderpetal thelypody
rare native
Perennial herb

BRASSICACEAE

Thelypodium stenopetalum
© 2009 Thomas Stoughton
Thelypodium stenopetalum
© 2012 Aaron Schusteff
Thelypodium stenopetalum
© 2012 Aaron Schusteff

Thermopsis californica var. argentata    Silvery false lupine
rare native
Perennial herb (rhizomatous)

FABACEAE

Thermopsis californica var. argentata
© 2022 Donald Burk
Thermopsis californica var. argentata
© 2020 Susan McDougall
Thermopsis californica var. argentata
© 2020 Susan McDougall

Thermopsis californica var. semota    Velvety false lupine
rare native
Perennial herb (rhizomatous)

FABACEAE

Thermopsis californica var. semota
© 2019 Bonnie Nickel
Thermopsis californica var. semota
© 2024 Ryan O'Dell
Thermopsis californica var. semota
© 2019 Bonnie Nickel

Thermopsis gracilis    Slender goldenbanner
rare native
Perennial herb (rhizomatous)

FABACEAE

Thermopsis gracilis
© 2020 Susan McDougall
Thermopsis gracilis
© 2024 Mary Ann Machi
Thermopsis gracilis
© 2024 Mary Ann Machi

Thermopsis macrophylla    California falselupine,  Common false lupine,  Santa inez goldenbanner
rare native
Perennial herb

FABACEAE


Thermopsis robusta    Robust false lupine,  Showy goldenbanner
rare native
Perennial herb (rhizomatous)

FABACEAE

Thermopsis robusta
© 2023 Dana York
Thermopsis robusta
© 2023 Dana York
Thermopsis robusta
© 2018 Hayley Ross

Thysanocarpus conchuliferus    Cupped fringe pod,  Santa cruz island fringepod,  Santa cruz island lacepod
rare native
Annual herb

BRASSICACEAE

Thysanocarpus conchuliferus
© Rick York and CNPS
Thysanocarpus conchuliferus
© Rick York and CNPS

Thysanocarpus rigidus    Rigid fringepod
rare native
Annual herb

BRASSICACEAE

Thysanocarpus rigidus
© 2015 Keir Morse
Thysanocarpus rigidus
© 2015 Keir Morse
Thysanocarpus rigidus
© 2015 Keir Morse

Tiarella trifoliata var. trifoliata    Threeleaf foamflower,  Trifoliate laceflower
rare native
Perennial herb (rhizomatous)

SAXIFRAGACEAE

Tiarella trifoliata var. trifoliata
© 2017 James Gonsman
Tiarella trifoliata var. trifoliata
© 2014 Barry Rice
Tiarella trifoliata var. trifoliata
© 2009 Barry Breckling

Tidestromia eliassoniana    Eliasson's woolly tidestromia
rare native
Annual herb

AMARANTHACEAE

Tidestromia eliassoniana
© 2020 Debra Valov
Tidestromia eliassoniana
© 2020 Debra Valov
Tidestromia eliassoniana
© 2020 Debra Valov

Tiquilia canescens var. pulchella    Chocolate mtns. coldenia,  Woody crinklemat
rare native
Perennial herb, Shrub

EHRETIACEAE

Tiquilia canescens var. pulchella
© 2017 matthew_salkiewicz
Tiquilia canescens var. pulchella
© 2024 ynaturalesa
Tiquilia canescens var. pulchella
© 2024 drabadude

Tonestus eximius    Lake tahoe serpentweed,  Tahoe tonestus
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Tonestus eximius
© 2020 Bob Sweatt
Tonestus eximius
© 2020 Bob Sweatt
Tonestus eximius
© 2020 Bob Sweatt

Tonestus lyallii    Lyall's goldenweed,  Lyall's tonestus
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Tonestus lyallii
© 2022 Dana York
Tonestus lyallii
© 2022 Dana York
Tonestus lyallii
© 2022 Dana York

Tonestus peirsonii    Peirson's haplopappus,  Peirson's serpentweed
rare native
Perennial herb

ASTERACEAE

Tonestus peirsonii
© 2014 Steve Matson
Tonestus peirsonii
© 2014 Steve Matson
Tonestus peirsonii
© 2014 Steve Matson

Tortella alpicola    Alpine crisp moss
rare native
Moss

POTTIACEAE


Tortula californica    California tortula moss
rare native
Moss

POTTIACEAE

Tortula californica
© 2019 Neil Uelman
Tortula californica
© 2016 Neil Uelman
Tortula californica
© 2022 Neil Uelman

Townsendia condensata    Cushion townsend daisy,  Hairy townsendia
rare native
Perennial herb

ASTERACEAE

Townsendia condensata
© 2015 Steve Matson
Townsendia condensata
© 2015 Steve Matson
Townsendia condensata
© 2016 Steve Matson

Townsendia leptotes    Common townsend daisy,  Common townsendia
rare native
Perennial herb

ASTERACEAE

Townsendia leptotes
© 2022 Richard Sullivan
Townsendia leptotes
© 2022 Richard Sullivan
Townsendia leptotes
© 2022 Richard Sullivan

Toxicoscordion fontanum    Marsh zigadenus
rare native
Perennial herb

MELANTHIACEAE

Toxicoscordion fontanum
© 2020 Susan McDougall
Toxicoscordion fontanum
© 2020 Susan McDougall
Toxicoscordion fontanum
© 2021 Cynthia Powell

Tracyina rostrata    Beaked tracyina,  Indian headdress
rare native
Annual herb

ASTERACEAE

Tracyina rostrata
© 2018 John Game
Tracyina rostrata
© 2019 John Game
Tracyina rostrata
© 2019 John Game

Tragia ramosa    Branched noseburn,  Desert noseburn
rare native
Perennial herb

EUPHORBIACEAE

Tragia ramosa
© 2012 Keir Morse
Tragia ramosa
© 2020 Matt Berger
Tragia ramosa
© 2020 Matt Berger

Transberingia bursifolia ssp. virgata    Virgate halimolobos
rare native
Perennial herb

BRASSICACEAE

Transberingia bursifolia ssp. virgata
© 2015 Steve Matson
Transberingia bursifolia ssp. virgata
© 2015 Steve Matson
Transberingia bursifolia ssp. virgata
© 2015 Steve Matson

Trichocoronis wrightii var. wrightii    Wright's trichocoronis
rare native
Annual herb

ASTERACEAE

Trichocoronis wrightii var. wrightii
© 2011 Karyn Lea Drennen
Trichocoronis wrightii var. wrightii
© 2015 Richard Spellenberg
Trichocoronis wrightii var. wrightii
© 2011 Karyn Lea Drennen

Trichodon cylindricus    Trichodon moss
rare native
Moss

DITRICHACEAE


Trichophorum pumilum    Rolland's bulrush
rare native
Perennial grasslike herb (rhizomatous)

CYPERACEAE

Trichophorum pumilum
© 2016 Steve Matson
Trichophorum pumilum
© 2016 Steve Matson
Trichophorum pumilum
© 2016 Steve Matson

Trichostema austromontanum ssp. compactum    Hidden lake bluecurls,  San jacinto bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema austromontanum ssp. compactum
© Pamela Taylor
Trichostema austromontanum ssp. compactum
© Pamela Taylor
Trichostema austromontanum ssp. compactum
© 2012 Keir Morse

Trichostema micranthum    Small flowered bluecurls,  Smallflower bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema micranthum
© 2016 Keir Morse
Trichostema micranthum
© 2016 Keir Morse
Trichostema micranthum
© 2016 Keir Morse

Trichostema ovatum    San joaquin bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema ovatum
© 2020 John Game
Trichostema ovatum
© 2021 Mike Russler
Trichostema ovatum
© 2021 Mike Russler

Trichostema rubisepalum    Hernandez bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema rubisepalum
© 2021 Mike Russler
Trichostema rubisepalum
© 2021 Mike Russler
Trichostema rubisepalum
© 2021 Mike Russler

Trichostema ruygtii    Napa bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema ruygtii
© 2022 R.A. Chasey
Trichostema ruygtii
© 2022 R.A. Chasey
Trichostema ruygtii
© 2022 R.A. Chasey

Trifolium amoenum    Showy indian clover
rare native
Annual herb

FABACEAE

Trifolium amoenum
© 2017 James Gonsman
Trifolium amoenum
© 1997 Doreen L. Smith
Trifolium amoenum
© 2009 Doreen L. Smith

Trifolium andersonii ssp. andersonii    Anderson's clover
rare native
Perennial herb

FABACEAE

Trifolium andersonii ssp. andersonii
© 2008 Steve Matson
Trifolium andersonii ssp. andersonii
© 2008 Steve Matson
Trifolium andersonii ssp. andersonii
© 2008 Steve Matson

Trifolium bolanderi    Bolander's clover,  Parasol clover
rare native
Perennial herb

FABACEAE

Trifolium bolanderi
© 2023 Chloe and Trevor Van Loon
Trifolium bolanderi
© 2021 Mike Russler
Trifolium bolanderi
© 2021 Mike Russler

Trifolium buckwestiorum    Santa cruz clover
rare native
Annual herb

FABACEAE

Trifolium buckwestiorum
© 2011 Dylan Neubauer
Trifolium buckwestiorum
© 1997 Doreen L. Smith

Trifolium dedeckerae    Dedecker's clover
rare native
Perennial herb

FABACEAE

Trifolium dedeckerae
© 2009 Gary A. Monroe
Trifolium dedeckerae
© 2009 Gary A. Monroe

Trifolium gymnocarpon ssp. plummerae    Plummer's clover
rare native
Perennial herb

FABACEAE

Trifolium gymnocarpon ssp. plummerae
© 2021 Sarah Tona
Trifolium gymnocarpon ssp. plummerae
© 2012 Dean Wm. Taylor
Trifolium gymnocarpon ssp. plummerae
© 2012 Dean Wm. Taylor

Trifolium howellii    Canyon clover,  Howell's clover
rare native
Perennial herb

FABACEAE

Trifolium howellii
© 2021 Julie A. Kierstead
Trifolium howellii
© 2021 Julie A. Kierstead
Trifolium howellii
© 2021 Julie A. Kierstead

Trifolium hydrophilum    Saline clover
rare native
Annual herb

FABACEAE

Trifolium hydrophilum
© 2024 Mike Russler
Trifolium hydrophilum
© 2024 Kyle Suchy
Trifolium hydrophilum
© 2024 Mike Russler

Trifolium jokerstii    Jim's clover,  Butte County Golden Clover
rare native
Annual herb

FABACEAE

Trifolium jokerstii
© 2024 Jordan Collins
Trifolium jokerstii
© 2021 Steve Laymon
Trifolium jokerstii
© 2023 Robin Carter-Ervin

Trifolium lemmonii    Lemmon's clover
rare native
Perennial herb

FABACEAE

Trifolium lemmonii
© 2010 Steve Matson
Trifolium lemmonii
© 2010 Steve Matson
Trifolium lemmonii
© 2010 Steve Matson

Trifolium palmeri    Southern island clover
rare native
Annual herb

FABACEAE

Trifolium palmeri
© 2011 Dylan Neubauer
Trifolium palmeri
© 2011 Dylan Neubauer
Trifolium palmeri
© 2011 Dylan Neubauer

Trifolium piorkowskii    Piorkowski's clover
rare native
Annual herb

FABACEAE

Trifolium piorkowskii
© 2024 Donald Burk
Trifolium piorkowskii
© 2024 Donald Burk
Trifolium piorkowskii
© 2024 Donald Burk

Trifolium polyodon    Pacific grove clover
rare native
Annual herb

FABACEAE

Trifolium polyodon
© 2017 Lynn Overtree
Trifolium polyodon
© 2017 Lynn Overtree
Trifolium polyodon
© 2011 Dylan Neubauer

Trifolium siskiyouense    Siskiyou clover
rare native
Perennial herb

FABACEAE


Trifolium trichocalyx    Monterey clover
rare native
Annual herb

FABACEAE

Trifolium trichocalyx
© 2011 Kerry Heise
Trifolium trichocalyx
© 2011 Kerry Heise

Triglochin palustris    Marsh arrow grass,  Marsh arrowgrass
rare native
Perennial herb (aquatic)

JUNCAGINACEAE

Triglochin palustris
© 2008 Steve Matson
Triglochin palustris
© 2008 Steve Matson
Triglochin palustris
© 2008 Steve Matson

Trillium ovatum ssp. oettingeri    Salmon Mountains Wakerobin
rare native
Perennial herb

MELANTHIACEAE

Trillium ovatum ssp. oettingeri
© 2021 Dana York
Trillium ovatum ssp. oettingeri
© 2021 joaquin hale
Trillium ovatum ssp. oettingeri
© 2022 Jamie Spielmann

Triphysaria floribunda    San francisco owl's clover
rare native
Annual herb

OROBANCHACEAE

Triphysaria floribunda
© 2017 Steve Matson
Triphysaria floribunda
© 2017 Steve Matson
Triphysaria floribunda
© 2017 Steve Matson

Tripterocalyx crux-maltae    Lassen sand verbena,  Lassen sandverbena
rare native
Annual herb

NYCTAGINACEAE

Tripterocalyx crux-maltae
© 2009 Gary A. Monroe
Tripterocalyx crux-maltae
© 2009 Gary A. Monroe
Tripterocalyx crux-maltae
© 1993 Gary A. Monroe

Tripterocalyx micranthus    Little sand verbena,  Smallflower sandverbena
rare native
Annual herb

NYCTAGINACEAE

Tripterocalyx micranthus
© 2010 Ron Wolf
Tripterocalyx micranthus
© 2005 James M. Andre
Tripterocalyx micranthus
© 2005 James M. Andre

Triquetrella californica    California triquetrella moss
rare native
Moss

POTTIACEAE

Triquetrella californica
© 2004 John Game
Triquetrella californica
© 2017 Neal Kramer
Triquetrella californica
© 2017 Neal Kramer

Triteleia clementina    San clemente island triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia clementina
© 2008 Kim M. Klementowski
Triteleia clementina
© 2005 Dieter Wilken

Triteleia crocea var. crocea    Yellow triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia crocea var. crocea
© 2023 Amy Rachkowski
Triteleia crocea var. crocea
© 2023 Amy Rachkowski
Triteleia crocea var. crocea
© 2023 Bryce Ryals

Triteleia crocea var. modesta    Trinity mountains pretty face,  Yellow triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia crocea var. modesta
© 2023 Morgan Stickrod
Triteleia crocea var. modesta
© 2023 Seth Beres
Triteleia crocea var. modesta
© 2022 Zane Walker

Triteleia grandiflora    Largeflower triteleia
rare native
Perennial herb

THEMIDACEAE

Triteleia grandiflora
© 2023 Amy Rachkowski
Triteleia grandiflora
© 2023 Amy Rachkowski
Triteleia grandiflora
© 2023 Amy Rachkowski

Triteleia hendersonii    Henderson's triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia hendersonii
© 2023 Amy Rachkowski
Triteleia hendersonii
© 2023 Amy Rachkowski
Triteleia hendersonii
© 2000 Dianne Fristrom

Triteleia ixioides ssp. cookii    Cook's triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia ixioides ssp. cookii
© 2000 Joseph Dougherty/ecology.org

Triteleia lugens    Coast range triplet lily,  Coast range triteleia
rare native
Perennial herb

THEMIDACEAE

Triteleia lugens
© 2019 Barbara Peck
Triteleia lugens
© 2020 Jeff Bisbee
Triteleia lugens
© 2020 Jeff Bisbee

Triteleia piutensis    Piute mountains triteleia
rare native
Perennial herb

THEMIDACEAE

Triteleia piutensis
© 2020 Jeff Bisbee
Triteleia piutensis
© 2020 Jeff Bisbee
Triteleia piutensis
© 2019 Matt Berger

Tropidocarpum californicum    King's gold
rare native
Perennial herb

BRASSICACEAE

Tropidocarpum californicum
© 2015 Dean Wm. Taylor
Tropidocarpum californicum
© 2015 Dean Wm. Taylor
Tropidocarpum californicum
© 2017 Robert E. Preston, Ph.D.

Tropidocarpum capparideum    Caper fruited tropidocarpum,  Caperfruit tropidocarpum
rare native
Annual herb

BRASSICACEAE

Tropidocarpum capparideum
© 2024 Chloe and Trevor Van Loon
Tropidocarpum capparideum
© 2024 Chloe and Trevor Van Loon
Tropidocarpum capparideum
© 2024 Chloe and Trevor Van Loon

Tuctoria greenei    Awnless spiralgrass,  Greene's tuctoria
rare native
Annual grass

POACEAE

Tuctoria greenei
© 2023 Justin Chappelle
Tuctoria greenei
© 2023 Justin Chappelle
Tuctoria greenei
© 2023 Justin Chappelle

Tuctoria mucronata    Crampton's tuctoria,  Prickly spiralgrass
rare native
Annual grass

POACEAE

Tuctoria mucronata
© 2019 Greg Kareofelas
Tuctoria mucronata
© 2019 Greg Kareofelas
Tuctoria mucronata
© 2019 Greg Kareofelas

Usnea longissima    Methuselah's beard lichen
rare native
Lichen

PARMELIACEAE

Usnea longissima
© 2021 Chris Brant
Usnea longissima
© 2017 Asa B Spade
Usnea longissima
© 2019 Jonathan Lee

Utricularia intermedia    Flat leaf bladderwort,  Flat leaved bladderwort,  Flatleaf bladderwort
rare native
Annual herb

LENTIBULARIACEAE

Utricularia intermedia
© 2018 Mary Merriman
Utricularia intermedia
© 2009 Barry Rice
Utricularia intermedia
© 2004 Barry Rice

Utricularia minor    Lesser bladderwort
rare native
Annual herb

LENTIBULARIACEAE

Utricularia minor
© 2013 David popp
Utricularia minor
© 2021 Lisa Berry
Utricularia minor
© 2014 Roy West

Utricularia ochroleuca    Yellowishwhite bladderwort
rare native
Perennial herb

LENTIBULARIACEAE

Utricularia ochroleuca
© 2007 George W. Hartwell
Utricularia ochroleuca
© 2009 Barry Rice

Vaccinium coccineum    Siskiyou Mtns. huckleberry
rare native
Shrub

ERICACEAE

Vaccinium coccineum
© 2012 Aaron Arthur
Vaccinium coccineum
© 2020 Stillwater Sciences
Vaccinium coccineum
© 2020 Stillwater Sciences

Vaccinium scoparium    Grouse whortleberry,  Little leaf huckleberry
rare native
Shrub

ERICACEAE

Vaccinium scoparium
© 2011 Steve Matson
Vaccinium scoparium
© 2022 Dana York
Vaccinium scoparium
© 2023 Dana York

Vaccinium shastense ssp. shastense    Shasta huckleberry
rare native
Shrub

ERICACEAE

Vaccinium shastense ssp. shastense
© 2016 Steve Matson
Vaccinium shastense ssp. shastense
© 2016 Steve Matson
Vaccinium shastense ssp. shastense
© 2016 Steve Matson

Vahlodea atropurpurea    Mountain hairgrass
rare native
Perennial grass

POACEAE

Vahlodea atropurpurea
© 2008 Sean B. Smith
Vahlodea atropurpurea
© 2024 Matt C. Berger
Vahlodea atropurpurea
© 2024 Matt C. Berger

Valeriana occidentalis    Western valerian
rare native
Perennial herb

VALERIANACEAE

Valeriana occidentalis
© 2024 Alaine Arslan
Valeriana occidentalis
© 2024 Alaine Arslan
Valeriana occidentalis
© 2022 Eric Engles

Vancouveria chrysantha    Golden inside out flower,  Golden vancouveria,  Siskiyou inside out flower
rare native
Perennial herb (rhizomatous)

BERBERIDACEAE

Vancouveria chrysantha
© 2018 John Game
Vancouveria chrysantha
© 2024 Dana York
Vancouveria chrysantha
© 2020 Kolby Lundgren

Veratrum fimbriatum    Fringed cornlily,  Fringed false hellebore
rare native
Perennial herb

MELANTHIACEAE

Veratrum fimbriatum
© 2021 Roy West
Veratrum fimbriatum
© 2019 R.A. Chasey
Veratrum fimbriatum
© 2019 David Greenberger

Veratrum insolitum    Siskiyou false hellebore
rare native
Perennial herb

MELANTHIACEAE

Veratrum insolitum
© 2018 Alexander Randolph-Lowe
Veratrum insolitum
© 2019 Matt Berger
Veratrum insolitum
© 2018 Anna Sereno

Verbena californica    California vervain,  Red hills vervain
rare native
Perennial herb

VERBENACEAE

Verbena californica
© 2019 David Greenberger
Verbena californica
© 2024 Mike Russler
Verbena californica
© 2024 Mike Russler

Verbesina dissita    Bigleaf crownbeard
rare native
Perennial herb

ASTERACEAE

Verbesina dissita
© 2019 Ron Vanderhoff
Verbesina dissita
© 2020 Matthew Major
Verbesina dissita
© 2020 Ron Vanderhoff

Veronica copelandii    Copeland's speedwell
rare native
Perennial herb

PLANTAGINACEAE

Veronica copelandii
© 2014 Steve Matson
Veronica copelandii
© 2014 Steve Matson
Veronica copelandii
© 2014 Steve Matson

Veronica cusickii    Cusick's speedwell
rare native
Perennial herb

PLANTAGINACEAE

Veronica cusickii
© 2020 Bob Sweatt
Veronica cusickii
© 2020 Bob Sweatt
Veronica cusickii
© 2020 Bob Sweatt

Viburnum ellipticum    Common viburnum,  Viburnum
rare native
Shrub

VIBURNACEAE

Viburnum ellipticum
© 2021 R.A. Chasey
Viburnum ellipticum
© 2021 R.A. Chasey
Viburnum ellipticum
© 2020 Julie A. Kierstead

Viguiera laciniata    San Diego County viguiera,  Torhleaf goldeneye
rare native
Shrub

ASTERACEAE

Viguiera laciniata
© 2011 Sherie Hubble
Viguiera laciniata
© 2011 Sherie Hubble
Viguiera laciniata
© 2010 Benjamin Smith

Viguiera purisimae    La purisima viguiera
rare native
Shrub

ASTERACEAE

Viguiera purisimae
© 2018 Ron Vanderhoff
Viguiera purisimae
© 2018 Ron Vanderhoff
Viguiera purisimae
© 2018 Ron Vanderhoff

Viola howellii    Howell's violet
rare native
Perennial herb

VIOLACEAE

Viola howellii
© 2010 Ray Collett
Viola howellii
© 2012 Aaron Arthur

Viola langsdorffii    Aleutian violet
rare native
Perennial herb

VIOLACEAE

Viola langsdorffii
© 2018 John Game
Viola langsdorffii
© 2022 Dana York
Viola langsdorffii
© 2022 Dana York

Viola palustris    Marsh violet
rare native
Perennial herb (rhizomatous)

VIOLACEAE

Viola palustris
© 2017 Steve Matson
Viola palustris
© 2017 Steve Matson
Viola palustris
© 2017 Steve Matson

Viola pinetorum ssp. grisea    Goosefoot yellow violet,  Grey leaved violet
rare native
Perennial herb

VIOLACEAE

Viola pinetorum ssp. grisea
© 2024 Dana York
Viola pinetorum ssp. grisea
© 2024 Dana York
Viola pinetorum ssp. grisea
© 2022 Eric Koberle

Viola primulifolia ssp. occidentalis    Western bog violet
rare native
Perennial herb (rhizomatous)

VIOLACEAE

Viola primulifolia ssp. occidentalis
© 2017 Steve Matson
Viola primulifolia ssp. occidentalis
© 2017 Steve Matson
Viola primulifolia ssp. occidentalis
© 2017 Steve Matson

Viola purpurea ssp. aurea    Golden violet
rare native
Perennial herb

VIOLACEAE

Viola purpurea ssp. aurea
© 2008 Steve Matson
Viola purpurea ssp. aurea
© 2012 Steve Matson
Viola purpurea ssp. aurea
© 2008 Steve Matson

Viola tomentosa    Feltleaf violet,  Woolly violet
rare native
Perennial herb

VIOLACEAE

Viola tomentosa
© 2006 Steve Matson
Viola tomentosa
© 2006 Steve Matson
Viola tomentosa
© 2019 Matt Berger

Wislizenia refracta ssp. palmeri    Palmer's jackass clover,  Palmer's wislizenia
rare native
Annual herb

CLEOMACEAE

Wislizenia refracta ssp. palmeri
© 2019 Richard Spjut
Wislizenia refracta ssp. palmeri
© 2019 Richard Spjut
Wislizenia refracta ssp. palmeri
© 2009 Xeric Specialties

Wislizenia refracta ssp. refracta    Jackass clover,  Spectacle fruit
rare native
Annual herb

CLEOMACEAE

Wislizenia refracta ssp. refracta
© 2005 James M. Andre
Wislizenia refracta ssp. refracta
© 2005 James M. Andre
Wislizenia refracta ssp. refracta
© 2005 James M. Andre

Wolffia brasiliensis    Brazilian watermeal,  South American water meal
rare native
Perennial herb

ARACEAE

Wolffia brasiliensis
© 2022 Donald Burk
Wolffia brasiliensis
© 2022 Donald Burk
Wolffia brasiliensis
© 2022 David popp

Woodsia plummerae    Plummer's cliff fern,  Plummer's woodsia
rare native
Fern (rhizomatous)

WOODSIACEAE

Woodsia plummerae
© University and Jepson Herbaria
Woodsia plummerae
© University and Jepson Herbaria

Wyethia elata    Hall's mule ears,  Hall's wyethia
rare native
Perennial herb

ASTERACEAE

Wyethia elata
© 2022 Mike Russler
Wyethia elata
© 2023 Chloe and Trevor Van Loon
Wyethia elata
© 2022 Mike Russler

Wyethia longicaulis    Humboldt county wyethia,  Humboldt mule ears
rare native
Perennial herb

ASTERACEAE

Wyethia longicaulis
© 2019 Kipp Pow
Wyethia longicaulis
© 2019 Kipp Pow
Wyethia longicaulis
© 2018 Claire Brown

Wyethia reticulata    El dorado county mule ears,  El dorado mule ears,  Eldorado wyethia
rare native
Perennial herb

ASTERACEAE

Wyethia reticulata
© 2017 Joey Santore
Wyethia reticulata
© 2017 Joey Santore
Wyethia reticulata
© 2014 Steven Perry

Xanthisma gracile    Annual bristleweed
rare native
Annual herb

ASTERACEAE

Xanthisma gracile
© 2011 Keir Morse
Xanthisma gracile
© 2011 Keir Morse
Xanthisma gracile
© 2011 Keir Morse

Xanthisma junceum    Rush like bristleweed
rare native
Perennial herb

ASTERACEAE

Xanthisma junceum
© 2004 Vince Scheidt
Xanthisma junceum
© 2021 W. Juergen Schrenk
Xanthisma junceum
© 2007 Vince Scheidt

Xylorhiza cognata    Mecca aster,  Mecca woodyaster
rare native
Perennial herb

ASTERACEAE

Xylorhiza cognata
© 2020 Tim Turner
Xylorhiza cognata
© 2023 Eric Koberle
Xylorhiza cognata
© 2020 Matt Berger

Xylorhiza orcuttii    Orcutt's aster,  Orcutt's woody aster
rare native
Perennial herb

ASTERACEAE

Xylorhiza orcuttii
© 2019 Dee Shea Himes
Xylorhiza orcuttii
© 2023 Rachel Whitt
Xylorhiza orcuttii
© 2017 Fred Melgert / Carla Hoegen