logo Calflora  Illustrated Plant List 
Henry W. Coe State Park
Santa Clara County

Pine Ridge Association  (2009-09-08)

Record Detail Nearby Surveys What Grows Here?
855 PLANTS
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

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
© 2016 Steve Matson
Acer macrophyllum
© 2018 Steve Matson
Acer macrophyllum
© 2018 Steve Matson

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
© 2022 Andy Ford
Achillea millefolium
© 2020 Bob Sweatt
Achillea millefolium
© 2018 Gary McDonald

Achyrachaena mollis    Blow-Wives
native
Annual herb

ASTERACEAE

Achyrachaena mollis
© 2015 Diane Etchison
Achyrachaena mollis
© 2022 Mike Russler
Achyrachaena mollis
© 2022 Mike Russler

native
Tree, Shrub

ROSACEAE

Adenostoma fasciculatum
© 2019 Steve Matson
Adenostoma fasciculatum
© 2019 Steve Matson
Adenostoma fasciculatum
© 2019 Steve Matson

Adiantum capillus-veneris    Venus hair
native
Fern

PTERIDACEAE

Adiantum capillus-veneris
© 2020 Ron Vanderhoff
Adiantum capillus-veneris
© 2020 Ron Vanderhoff
Adiantum capillus-veneris
© 2020 Ron Vanderhoff

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

Adiantum jordanii
© 2022 BOB CASE
Adiantum jordanii
© 2019 Ron Vanderhoff
Adiantum jordanii
© 2023 Mike Russler

Aesculus californica    Buckeye,  California buckeye,  California horse chestnut
native
Tree

SAPINDACEAE

Aesculus californica
© 2011 Steve Matson
Aesculus californica
© 2011 Steve Matson
Aesculus californica
© 2019 Verna Jigour

Agoseris grandiflora    Bigflower agoseris,  California dandelion,  Giant mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris grandiflora
© 2014 Steve Matson
Agoseris grandiflora
© 2014 Steve Matson
Agoseris grandiflora
© 2014 Steve Matson

Agoseris heterophylla    Annual agoseris,  Annual mountain dandelion
native
Annual herb

ASTERACEAE

Agoseris heterophylla
© 2020 Bob Sweatt
Agoseris heterophylla
© 2021 Lisa Berry
Agoseris heterophylla
© 2020 Bob Sweatt

Agrostis microphylla    Little leaf bentgrass,  Small leaf bentgrass,  Small leaved bentgrass
native
Annual grass

POACEAE

Agrostis microphylla
© 2023 John Rawlings
Agrostis microphylla
© 2023 John Rawlings
Agrostis microphylla
© 2023 John Rawlings

Agrostis semiverticillata    Water beard grass
non-native
Perennial grass

POACEAE

Agrostis semiverticillata
© 2022 Ron Vanderhoff
Agrostis semiverticillata
© 2021 Ron Vanderhoff
Agrostis semiverticillata
© 2019 Friends of Five Creeks volunteers

Agrostis viridis    Water beard grass
non-native
Perennial grass

POACEAE

Agrostis viridis
© 2022 Ron Vanderhoff
Agrostis viridis
© 2021 Ron Vanderhoff
Agrostis viridis
© 2019 Friends of Five Creeks volunteers

Aira caryophyllea    Shiver grass,  Silver hairgrass,  Silvery hairgrass
invasive non-native
Annual grass

POACEAE

Aira caryophyllea
© 2005 Steve Matson
Aira caryophyllea
© 2005 Steve Matson
Aira caryophyllea
© 2005 Steve Matson

Alcea rosea    Holly hock,  Hollyhock
non-native
Perennial herb

MALVACEAE

Alcea rosea
© 2017 Ron Vanderhoff
Alcea rosea
© 2017 Ron Vanderhoff
Alcea rosea
© 2021 Ron Vanderhoff

Alchemilla occidentalis    Western lady's mantle
native
Annual, Perennial herb

ROSACEAE

Alchemilla occidentalis
© 2019 Ron Vanderhoff
Alchemilla occidentalis
© 2017 Ron Vanderhoff
Alchemilla occidentalis
© 2023 R.A. Chasey

Alisma plantago-aquatica    Northern water plantain
native
Perennial herb (aquatic)

ALISMATACEAE

Alisma plantago-aquatica
© 2023 Ken-ichi Ueda
Alisma plantago-aquatica
© 2022 R.A. Chasey
Alisma plantago-aquatica
© 2019 Gena Bentall

Alisma triviale    Northern water plantain
native
Perennial herb (aquatic)

ALISMATACEAE

Alisma triviale
© 2023 Ken-ichi Ueda
Alisma triviale
© 2022 R.A. Chasey
Alisma triviale
© 2019 Gena Bentall

Allium amplectens    Narrow leaved onion,  Narrowleaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium amplectens
© 2016 Steve Matson
Allium amplectens
© 2016 Steve Matson
Allium amplectens
© 2016 Steve Matson

Allium cratericola    Cascade onion
native
Perennial herb (bulb)

ALLIACEAE

Allium cratericola
© 2016 BOB CASE
Allium cratericola
© 2022 Cynthia Powell
Allium cratericola
© 2017 David Greenberger

Allium falcifolium    Scytheleaf onion,  Sickle leaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium falcifolium
© 2011 Steve Matson
Allium falcifolium
© 2022 Steve Matson
Allium falcifolium
© 2011 Steve Matson

Allium fimbriatum    Fringed onion,  Wild onion
native
Perennial herb (bulb)

ALLIACEAE

Allium fimbriatum
© 2008 Keir Morse
Allium fimbriatum
© 2023 Bob Steele
Allium fimbriatum
© 2008 Keir Morse

Allium fimbriatum var. diabolense    Diablo onion,  Serpentine onion
native
Perennial herb (bulb)

ALLIACEAE

Allium fimbriatum var. diabolense
© 2020 David Greenberger
Allium fimbriatum var. diabolense
© 2021 Mike Russler
Allium fimbriatum var. diabolense
© 2021 Mike Russler

Allium peninsulare    Mexicali onion
native
Perennial herb (bulb)

ALLIACEAE

Allium peninsulare
© 2022 Rhonda Allen
Allium peninsulare
© 2019 Diane Etchison
Allium peninsulare
© 2019 Diane Etchison

Allium serra    Jeweled onion
native
Perennial herb (bulb)

ALLIACEAE

Allium serra
© 2022 Linnea vonAhn
Allium serra
© 2019 Matt Berger
Allium serra
© 2019 Matt Berger

Allium serratum    Jeweled onion
native
Perennial herb (bulb)

ALLIACEAE

Allium serratum
© 2022 Linnea vonAhn
Allium serratum
© 2019 Matt Berger
Allium serratum
© 2019 Matt Berger

Allium unifolium    One leaf onion,  Oneleaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium unifolium
© 2021 Doug Allshouse
Allium unifolium
© 2020 stephen rosenthal
Allium unifolium
© 2023 Mary Ann Machi

Allophyllum gilioides ssp. gilioides    Dense false gilia,  Dense false gilyflower
native
Annual herb

POLEMONIACEAE

Allophyllum gilioides ssp. gilioides
© 2019 Matt Berger
Allophyllum gilioides ssp. gilioides
© 2021 Helen Hancock
Allophyllum gilioides ssp. gilioides
© 2019 Matt Berger

Alnus rhombifolia    White alder
native
Tree

BETULACEAE

Alnus rhombifolia
© 2005 BOB CASE
Alnus rhombifolia
© 2014 Garth Wadsworth
Alnus rhombifolia
© 2023 Ron Vanderhoff

Althaea rosea    Holly hock,  Hollyhock
non-native
Perennial herb

MALVACEAE

Althaea rosea
© 2017 Ron Vanderhoff
Althaea rosea
© 2017 Ron Vanderhoff
Althaea rosea
© 2021 Ron Vanderhoff

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

Amaranthus albus
© 2014 Steve Matson
Amaranthus albus
© 2014 Steve Matson
Amaranthus albus
© 2018 Ron Vanderhoff

Amaranthus californicus    California amaranth,  California pigweed
native
Annual herb

AMARANTHACEAE

Amaranthus californicus
© 2016 Gerald Carr
Amaranthus californicus
© 2014 Jim Richards
Amaranthus californicus
© 2016 Gerald Carr

Amelanchier pallida    Pale serviceberry,  Pallid serviceberry,  Sarvis
native
Shrub

ROSACEAE

Amelanchier pallida
© 2011 John Doyen
Amelanchier pallida
© 2011 John Doyen
Amelanchier pallida
© 2010 Margo Bors

Amelanchier utahensis    Pale leaved serviceberry,  Service berry,  Utah service berry
native
Shrub

ROSACEAE

Amelanchier utahensis
© 2022 R.A. Chasey
Amelanchier utahensis
© 2021 Robert Steers
Amelanchier utahensis
© 2022 R.A. Chasey

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia intermedia
© 2020 Matt Berger
Amsinckia intermedia
© 2019 Ron Vanderhoff
Amsinckia intermedia
© 2021 David popp

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
© 2017 B.J. Dion
Anagallis arvensis
© 2022 Chris McDonald
Anagallis arvensis
© 2023 Ron Vanderhoff

Ancistrocarphus filagineus    False neststraw,  Woolly fishhooks
native
Annual herb

ASTERACEAE

Ancistrocarphus filagineus
© 2020 Matt Berger
Ancistrocarphus filagineus
© 2019 Gerald Carr
Ancistrocarphus filagineus
© 2021 Jacob Smith

Angelica tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

Angelica tomentosa
© 2022 Donald Burk
Angelica tomentosa
© 2022 Donald Burk
Angelica tomentosa
© 2017 MCOSD EDRR

Anthemis cotula    Dog fennel,  Mayweed, dog fennel,  Stinking chamomile
invasive non-native
Annual herb

ASTERACEAE

Anthemis cotula
© 2017 Diane Etchison
Anthemis cotula
© 2019 Nathan Taxel
Anthemis cotula
© 2019 Dave Beller

Anthriscus caucalis    Bur chervil
non-native
Annual herb, Vine

APIACEAE

Anthriscus caucalis
© 2021 Aaron Echols
Anthriscus caucalis
© 2024 Ron Vanderhoff
Anthriscus caucalis
© 2020 Jennifer Mo

non-native
Annual herb, Vine

APIACEAE

Anthriscus neglecta var. scandix
© 2021 Aaron Echols
Anthriscus neglecta var. scandix
© 2024 Ron Vanderhoff
Anthriscus neglecta var. scandix
© 2020 Jennifer Mo

Antirrhinum kelloggii    Climbing snapdragon,  Kellogg's snapdragon,  Lax snapdragon
native
Annual herb

PLANTAGINACEAE

Antirrhinum kelloggii
© 2024 David Strauch
Antirrhinum kelloggii
© 2019 David Greenberger
Antirrhinum kelloggii
© 2019 Ron Vanderhoff

native
Perennial herb

PLANTAGINACEAE

Antirrhinum multiflorum
© 2018 Michael Mitchell
Antirrhinum multiflorum
© Geoff Burleigh
Antirrhinum multiflorum
© 2016 Kristin Sabo

Antirrhinum vexillo-calyculatum    Wiry snapdragon
native
Annual herb

PLANTAGINACEAE

Antirrhinum vexillo-calyculatum
© 2020 Stacie Wolny
Antirrhinum vexillo-calyculatum
© 2017 Michelle Bosch
Antirrhinum vexillo-calyculatum
© 2020 Stacie Wolny

Aphanes occidentalis    Western lady's mantle
native
Annual, Perennial herb

ROSACEAE

Aphanes occidentalis
© 2019 Ron Vanderhoff
Aphanes occidentalis
© 2017 Ron Vanderhoff
Aphanes occidentalis
© 2023 R.A. Chasey

Apiastrum angustifolium    Mock parsley,  Wild celery,  Wild parsley
native
Annual herb

APIACEAE

Apiastrum angustifolium
© 2020 Ron Vanderhoff
Apiastrum angustifolium
© 2020 Ron Vanderhoff
Apiastrum angustifolium
© 2020 Ron Vanderhoff

Apium graveolens    Smallage,  Garden celery
non-native
Annual, Biennial herb

APIACEAE

Apium graveolens
© 2016 Joan Hampton
Apium graveolens
© 2019 Nathan Taxel
Apium graveolens
© 2016 Joan Hampton

Apocynum cannabinum    Indian hemp,  Indianhemp dogbane,  HEMP DOGBANE
native
Perennial herb

APOCYNACEAE

Apocynum cannabinum
© 2019 Ron Vanderhoff
Apocynum cannabinum
© 2015 Ron Vanderhoff
Apocynum cannabinum
© 2021 Mike Russler

Apocynum sibiricum var. salignum    Indian hemp,  Indianhemp dogbane,  HEMP DOGBANE
native
Perennial herb

APOCYNACEAE

Apocynum sibiricum var. salignum
© 2019 Ron Vanderhoff
Apocynum sibiricum var. salignum
© 2015 Ron Vanderhoff
Apocynum sibiricum var. salignum
© 2021 Mike Russler

Aquilegia formosa    Crimson columbine,  Sitka columbine,  Western columbine
native
Perennial herb

RANUNCULACEAE

Aquilegia formosa
© 2022 Charles Russell
Aquilegia formosa
© 2019 Diane Etchison
Aquilegia formosa
© 2022 David Strauch

Aquilegia formosa var. truncata    Crimson columbine,  Sitka columbine,  Western columbine
native
Perennial herb

RANUNCULACEAE

Aquilegia formosa var. truncata
© 2022 Charles Russell
Aquilegia formosa var. truncata
© 2019 Diane Etchison
Aquilegia formosa var. truncata
© 2022 David Strauch

Arabis breweri    Brewer's rock cress
native
Perennial herb

BRASSICACEAE

Arabis breweri
© 2019 Ken Hickman
Arabis breweri
© 2020 Ken Hickman
Arabis breweri
© 2016 Steve Matson

Arabis glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Arabis glabra
© 2021 David Wolfson
Arabis glabra
© 2021 Mike Russler
Arabis glabra
© 2020 Chico Hiking Association

Aralia californica    California spikenard,  Elk's clover,  Elkclover
native
Perennial herb

ARALIACEAE

Aralia californica
© 2022 Julie A. Kierstead
Aralia californica
© 2020 Tri Do
Aralia californica
© 2014 James Gonsman

Arbutus menziesii    Madrono,  Pacific madrone
native
Tree

ERICACEAE

Arbutus menziesii
© 2021 Cynthia Powell
Arbutus menziesii
© 2021 R.A. Chasey
Arbutus menziesii
© 2021 Hunter Breck

Arceuthobium campylopodum    Golden mistletoe,  Pine dwarf mistletoe,  Pine mistletoe
native
Perennial herb (parasitic)

VISCACEAE

Arceuthobium campylopodum
© 2016 Richard Spjut
Arceuthobium campylopodum
© 2020 Charles Russell
Arceuthobium campylopodum
© 2021 Mikhela Aiken

Arceuthobium occidentale    Golden mistletoe,  Pine dwarf mistletoe,  Pine mistletoe
native
Perennial herb (parasitic)

VISCACEAE

Arceuthobium occidentale
© 2016 Richard Spjut
Arceuthobium occidentale
© 2020 Charles Russell
Arceuthobium occidentale
© 2021 Mikhela Aiken

Arctostaphylos glandulosa    Cushing manzanita
native
Shrub

ERICACEAE

Arctostaphylos glandulosa
© 2019 Susan McDougall
Arctostaphylos glandulosa
© 2016 Dana York
Arctostaphylos glandulosa
© 2016 Dana York

Arctostaphylos glauca    Big berry manzanita,  Bigberry manzanita
native
Tree, Shrub

ERICACEAE

Arctostaphylos glauca
© 2020 Ron Vanderhoff
Arctostaphylos glauca
© 2018 Ron Vanderhoff
Arctostaphylos glauca
© 2018 Ron Vanderhoff

Arctostaphylos manzanita    Common manzanita
native
Shrub

ERICACEAE

Arctostaphylos manzanita
© 2022 Cynthia Powell
Arctostaphylos manzanita
© 2019 R.A. Chasey
Arctostaphylos manzanita
© 2019 Julie Kierstead Nelson

Arenaria californica    California sandwort,  Sandwort
native
Annual herb

CARYOPHYLLACEAE

Arenaria californica
© 2021 Steve Matson
Arenaria californica
© 2021 Steve Matson
Arenaria californica
© 2021 Steve Matson

Arenaria douglasii    Douglas' sandwort,  Douglas' stitchwort
native
Annual herb

CARYOPHYLLACEAE

Arenaria douglasii
© 2020 David Self
Arenaria douglasii
© 2018 James Gonsman
Arenaria douglasii
© 2010 Michael Mitchell

Aristolochia californica    California pipe vine,  California pipevine,  Dutchman's pipe
native
Vine, Shrub

ARISTOLOCHIACEAE

Aristolochia californica
© 2024 Ty Childress
Aristolochia californica
© 2015 Judy and Barry Breckling
Aristolochia californica
© 2019 Ramona Robison

Arnica discoidea    Rayless arnica
native
Perennial herb

ASTERACEAE

Arnica discoidea
© 2020 Ken Hickman
Arnica discoidea
© 2019 David Magney
Arnica discoidea
© 2020 Eliezer Margolis

Arnica discoidea var. alata    Rayless arnica
native
Perennial herb

ASTERACEAE

Arnica discoidea var. alata
© 2020 Ken Hickman
Arnica discoidea var. alata
© 2019 David Magney
Arnica discoidea var. alata
© 2020 Eliezer Margolis

Artemisia californica    California sagebrush,  Coast sagebrush,  Coastal sage brush
native
Shrub

ASTERACEAE

Artemisia californica
© 2018 James Gonsman
Artemisia californica
© 2019 Aaron Echols
Artemisia californica
© 2018 Ron Vanderhoff

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
© 2022 Ron Vanderhoff
Artemisia douglasiana
© 2016 Glen Schneider
Artemisia douglasiana
© 2021 Mike Russler

Artemisia dracunculus    Herbaceous sagewort,  Pinon wormwood,  Tarragon
native
Perennial herb

ASTERACEAE

Artemisia dracunculus
© 2022 Steve Matson
Artemisia dracunculus
© 2022 Steve Matson
Artemisia dracunculus
© 2022 Steve Matson

Asclepias californica    California milkweed
native
Perennial herb

APOCYNACEAE

Asclepias californica
© 2022 Lynn Sweet
Asclepias californica
© 2020 Stacie Wolny
Asclepias californica
© 2015 Ron Vanderhoff

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

Asclepias fascicularis
© 2010 Steve Matson
Asclepias fascicularis
© 2010 Steve Matson
Asclepias fascicularis
© 2014 Steve Matson

Asclepias mexicana    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

Asclepias mexicana
© 2010 Steve Matson
Asclepias mexicana
© 2010 Steve Matson
Asclepias mexicana
© 2014 Steve Matson

Aster chilensis    California aster,  Pacific aster
native
Perennial herb

ASTERACEAE

Aster chilensis
© 2020 Suzanne L. Weakley
Aster chilensis
© 2013 Arcangelo Wessells
Aster chilensis
© 2018 Stacie Wolny

Aster radulinus    Roughleaf aster
native
Perennial herb

ASTERACEAE

Aster radulinus
© 2007 Keir Morse
Aster radulinus
© 2023 Ken-ichi Ueda
Aster radulinus
© 2022 Bob Sweatt

Astragalus gambelianus    Dwarf loco weed,  Gambel's dwarf milk vetch,  Gambel's locoweed
native
Annual herb

FABACEAE

Astragalus gambelianus
© 2019 Ron Vanderhoff
Astragalus gambelianus
© 2019 Ron Vanderhoff
Astragalus gambelianus
© 2022 Mike Russler

Athysanus pusillus    Athysanus,  Common sandweed,  Dwarf athysanus
native
Annual herb

BRASSICACEAE

Athysanus pusillus
© 2008 Steve Matson
Athysanus pusillus
© 2008 Steve Matson
Athysanus pusillus
© 2008 Steve Matson

Atriplex lentiformis    Big saltbush
native
Shrub

CHENOPODIACEAE

Atriplex lentiformis
© 2018 Rachelle Gray
Atriplex lentiformis
© 2017 Ron Vanderhoff
Atriplex lentiformis
© 2021 Richard Spjut

Avena barbata    Slender oat,  Slim oat
invasive non-native
Annual grass

POACEAE

Avena barbata
© 2018 Julian Geoghegan
Avena barbata
© 2023 David popp
Avena barbata
© 2019 Ron Vanderhoff

Avena fatua    Wild oat,  Wildoat
invasive non-native
Annual grass

POACEAE

Avena fatua
© 2018 Gary McDonald
Avena fatua
© 2023 Ron Vanderhoff
Avena fatua
© 2023 Matt Berger

Azolla filiculoides    American water fern, mosquito fern,  Mosquito fern,  Pacific mosquitofern
native
Fern

AZOLLACEAE

Azolla filiculoides
© 2020 Ron Vanderhoff
Azolla filiculoides
© 2023 R.A. Chasey
Azolla filiculoides
© 2021 Zoya Akulova-Barlow

Baccharis douglasii    Mule fat
native
Shrub

ASTERACEAE

Baccharis douglasii
© 2022 Ron Vanderhoff
Baccharis douglasii
© 2023 Ron Vanderhoff
Baccharis douglasii
© 2024 Holly Gray

Baccharis glutinosa    Douglas' baccharis,  Salt marsh baccharis
native
Perennial herb

ASTERACEAE

Baccharis glutinosa
© 2020 Patrick Furtado
Baccharis glutinosa
© 2019 Julian Geoghegan
Baccharis glutinosa
© 2020 Rebecca Schoenenberger

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
© 2022 Ryan O'Dell
Baccharis pilularis
© 2021 Ron Vanderhoff: Staminate and pistillate plants in flower.
Baccharis pilularis
© 2018 Cynthia Powell

native
Shrub

ASTERACEAE

Baccharis pilularis var. consanguinea
© 2009 Toni Corelli
Baccharis pilularis var. consanguinea
© 2022 John Doyen
Baccharis pilularis var. consanguinea
© 2018 Ron Vanderhoff

Baccharis salicifolia    Mule fat., seep willow,  Mule's fat,  Mulefat
native
Shrub

ASTERACEAE

Baccharis salicifolia
© 2023 Julia Markey
Baccharis salicifolia
© 2020 Aaron Echols
Baccharis salicifolia
© 2023 Julia Markey

Baccharis viminea    Mule fat., seep willow,  Mule's fat,  Mulefat
native
Shrub

ASTERACEAE

Baccharis viminea
© 2023 Julia Markey
Baccharis viminea
© 2020 Aaron Echols
Baccharis viminea
© 2023 Julia Markey

Baeria chrysostoma    California goldfields
native
Annual herb

ASTERACEAE

Baeria chrysostoma
© 2021 Charles Russell
Baeria chrysostoma
© 2022 Steve Matson
Baeria chrysostoma
© 2015 Toni Corelli

Barbarea verna    Early winter cress,  Early wintercress,  Scurvy grass
non-native
Perennial herb

BRASSICACEAE

Barbarea verna
© 2022 Mary Merriman
Barbarea verna
© 2019 David popp
Barbarea verna
© 2018 MCOSD EDRR

Berberis pinnata    California barberry,  Coast barberry,  Shiny leaf mahonia
native
Shrub

BERBERIDACEAE

Berberis pinnata
© 2021 Ron Vanderhoff
Berberis pinnata
© 2022 Alice Cummings
Berberis pinnata
© 2021 Ron Vanderhoff

Bloomeria crocea    Common goldenstar,  Golden star
native
Perennial herb

THEMIDACEAE

Bloomeria crocea
© 2018 Janith Johnson
Bloomeria crocea
© 2014 Steve Matson
Bloomeria crocea
© 2014 Steve Matson

Boisduvalia densiflora    Dense boisduvalia,  Dense flowered boisduvalia,  Dense flowered spike primrose
native
Annual herb

ONAGRACEAE

Boisduvalia densiflora
© 2009 BOB CASE
Boisduvalia densiflora
© 2021 Mike Russler
Boisduvalia densiflora
© 2020 Bob Sweatt

Boisduvalia stricta    Narrow boisduvalia,  Narrow leaved boisduvalia,  Torrey's willowherb
native
Annual herb

ONAGRACEAE

Boisduvalia stricta
© 2023 R.A. Chasey
Boisduvalia stricta
© 2004 Norman Jensen
Boisduvalia stricta
© 2022 R.A. Chasey

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

Bowlesia incana
© 2019 Diane Renshaw
Bowlesia incana
© 2019 Diane Renshaw
Bowlesia incana
© 2017 Gary McDonald

Brassica geniculata    Mediterranean hoary mustard,  Short podded mustard,  Summer mustard
invasive non-native
Perennial herb

BRASSICACEAE

Brassica geniculata
© 2017 Gary McDonald
Brassica geniculata
© 2017 Gary McDonald
Brassica geniculata
© 2022 Ron Vanderhoff

Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
© 2021 Ron Vanderhoff
Brassica nigra
© 2019 Ron Vanderhoff
Brassica nigra
© 2019 Ron Vanderhoff

Brassica rapa    Common mustard,  Field mustard,  Rape mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica rapa
© 2024 David Wolfson
Brassica rapa
© 2021 Diane Etchison
Brassica rapa
© 2018 Angelique Herman

Brassica rapa ssp. sylvestris    Field mustard,  Turnip
invasive non-native
Annual herb

BRASSICACEAE

Brassica rapa ssp. sylvestris
© 2017 Barbara Boethling
Brassica rapa ssp. sylvestris
© 2017 Cynthia Powell
Brassica rapa ssp. sylvestris
© 2018 Angelique Herman

Brickellia californica    Brickell bush,  California brickellbush,  California brickellia
native
Perennial herb

ASTERACEAE

Brickellia californica
© 2020 Diane Etchison
Brickellia californica
© 2018 Diane Etchison
Brickellia californica
© 2022 Ron Vanderhoff

Briza minor    Little quaking grass,  Little quakinggrass,  Little rattlesnake grass
non-native
Annual grass

POACEAE

Briza minor
© 2023 R.A. Chasey
Briza minor
© 2019 Gary McDonald
Briza minor
© 2019 Gary McDonald

Brodiaea capitata    Blue dicks,  Bluedicks,  Wild hyacinth
native
Perennial herb

THEMIDACEAE

Brodiaea capitata
© 2015 Diane Etchison
Brodiaea capitata
© 2010 Steven Thorsted
Brodiaea capitata
© 2019 Mary Conway

Brodiaea congesta    Fork toothed ookow,  Ookow
native
Perennial herb

THEMIDACEAE

Brodiaea congesta
© 2017 Gary Morgret
Brodiaea congesta
© 2019 Suzanne L. Weakley
Brodiaea congesta
© 2023 Teal Derrer

Brodiaea elegans    Harvest brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea elegans
© 2019 Joe Engelbrecht
Brodiaea elegans
© 2009 Bob Case
Brodiaea elegans
© 2009 BOB CASE

Brodiaea hyacinthina    White brodiaea,  Wild hyacinth,  White Brodiaea, Fool's Onion
native
Perennial herb

THEMIDACEAE

Brodiaea hyacinthina
© 2008 Steve Matson
Brodiaea hyacinthina
© 2008 Steve Matson
Brodiaea hyacinthina
© 2008 Steve Matson

Brodiaea laxa    Ithuriel's spear
native
Perennial herb

THEMIDACEAE

Brodiaea laxa
© 2018 Gary McDonald
Brodiaea laxa
© 2018 Tim Lewis
Brodiaea laxa
© 2019 Matt Berger

Bromus breviaristatus    Mountain brome
native
Perennial grass

POACEAE

Bromus breviaristatus
© 2021 Arlee Montalvo
Bromus breviaristatus
© 2019 John Rawlings
Bromus breviaristatus
© 2021 Arlee Montalvo

Bromus carinatus    California brome
native
Perennial grass

POACEAE

Bromus carinatus
© 2020 Ron Vanderhoff
Bromus carinatus
© 2022 David popp
Bromus carinatus
© 2014 Vertin Alvarez

Bromus commutatus    Hairy chess, meadow brome
non-native
Annual grass

POACEAE

Bromus commutatus
© 2015 Gerald Carr
Bromus commutatus
© 2015 Gerald Carr
Bromus commutatus
© 2023 Dana York

Bromus diandrus    Bromegrass,  Ripgut brome,  Ripgut grass
invasive non-native
Annual grass

POACEAE

Bromus diandrus
© 2022 Ron Vanderhoff
Bromus diandrus
© 2021 Richard Spjut
Bromus diandrus
© 2022 Ron Vanderhoff

Bromus hordeaceus    Soft brome,  Soft chess
invasive non-native
Annual grass

POACEAE

Bromus hordeaceus
© 2023 Ron Vanderhoff
Bromus hordeaceus
© 2018 Gary McDonald
Bromus hordeaceus
© 2018 Gary McDonald

Bromus japonicus    Downy sheathed cheat,  Hairy chess,  Japanese brome
invasive non-native
Annual grass

POACEAE

Bromus japonicus
© 2022 Michelle Peruzzi
Bromus japonicus
© 2005 Steve Matson
Bromus japonicus
© 2005 Steve Matson

Bromus laevipes    Chinook brome,  Narrow flowered brome,  Woodland brome
native
Perennial grass

POACEAE

Bromus laevipes
© 2020 Alice Cummings
Bromus laevipes
© 2019 Kimberly Moses
Bromus laevipes
© 2018 Ken Hickman

non-native
Annual grass

POACEAE

Bromus madritensis ssp. madritensis
© 2015 Chris Jaster
Bromus madritensis ssp. madritensis
© 2015 Chris Jaster
Bromus madritensis ssp. madritensis
© 2015 Chris Jaster

invasive non-native
Annual grass

POACEAE

Bromus madritensis ssp. rubens
© 2015 Chris Jaster
Bromus madritensis ssp. rubens
© 2015 jamie smith
Bromus madritensis ssp. rubens
© 2018 Gary McDonald

Bromus molliformis    Soft brome,  Soft chess
invasive non-native
Annual grass

POACEAE

Bromus molliformis
© 2023 Ron Vanderhoff
Bromus molliformis
© 2018 Gary McDonald
Bromus molliformis
© 2018 Gary McDonald

Bromus rubens    Red brome
invasive non-native
Annual grass

POACEAE

Bromus rubens
© 2015 Chris Jaster
Bromus rubens
© 2015 jamie smith
Bromus rubens
© 2018 Gary McDonald

Bromus tectorum    Cheatgrass, downy brome,  Downy brome grass,  Downy chess
invasive non-native
Annual grass

POACEAE

Bromus tectorum
© 2022 Ron Vanderhoff
Bromus tectorum
© 2022 Ron Vanderhoff
Bromus tectorum
© 2022 Ron Vanderhoff

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
© 2021 Mary Ann Machi
Calandrinia ciliata
© 2019 Ron Vanderhoff
Calandrinia ciliata
© 2019 Ron Vanderhoff

Calandrinia ciliata var. menziesii    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata var. menziesii
© 2021 Mary Ann Machi
Calandrinia ciliata var. menziesii
© 2019 Ron Vanderhoff
Calandrinia ciliata var. menziesii
© 2019 Ron Vanderhoff

Calochortus albus    White fairy lantern,  White globe lily
native
Perennial herb

LILIACEAE

Calochortus albus
© 2019 David Greenberger
Calochortus albus
© 2019 Cynthia Powell
Calochortus albus
© 2016 Steve Matson

Calochortus argillosus    Clay mariposa lily
native
Perennial herb (bulb)

LILIACEAE

Calochortus argillosus
© 2023 Linda Brodman
Calochortus argillosus
© 2022 Suzanne L. Weakley
Calochortus argillosus
© 2022 Suzanne L. Weakley

Calochortus luteus    Yellow mariposa lily
native
Perennial herb

LILIACEAE

Calochortus luteus
© 2014 Steve Matson
Calochortus luteus
© 2014 Steve Matson
Calochortus luteus
© 2022 Steve Matson

Calochortus superbus    Yellow mariposa
native
Perennial herb

LILIACEAE

Calochortus superbus
© 2019 Julie Kierstead Nelson
Calochortus superbus
© 2005 BOB CASE
Calochortus superbus
© 2023 Mike Russler

Calochortus venustus    Butterfly mariposa lily
native
Perennial herb

LILIACEAE

Calochortus venustus
© 2014 Steve Matson
Calochortus venustus
© 2012 Zack Abbey
Calochortus venustus
© 2019 Randy Huey

Calycadenia multiglandulosa    Rosin weed,  Sticky calycadenia,  Sticky western rosinweed
native
Annual herb

ASTERACEAE

Calycadenia multiglandulosa
© 2018 Alice Cummings
Calycadenia multiglandulosa
© 2021 R.A. Chasey
Calycadenia multiglandulosa
© 2019 Alice Cummings

Calycadenia multiglandulosa ssp. robusta    Rosin weed,  Sticky calycadenia,  Sticky western rosinweed
native
Annual herb

ASTERACEAE

Calycadenia multiglandulosa ssp. robusta
© 2018 Alice Cummings
Calycadenia multiglandulosa ssp. robusta
© 2021 R.A. Chasey
Calycadenia multiglandulosa ssp. robusta
© 2019 Alice Cummings

Calycadenia truncata    Rosin weed
native
Annual herb

ASTERACEAE

Calycadenia truncata
© 2016 Steve Matson
Calycadenia truncata
© 2016 Steve Matson
Calycadenia truncata
© 2023 Helen Hancock

Calyptridium monandrum    Common pussypaws,  Pussy paws
native
Annual herb

MONTIACEAE

Calyptridium monandrum
© 2019 Stacie Wolny
Calyptridium monandrum
© 2023 Maisie Borg
Calyptridium monandrum
© 2021 Mike Russler

Calystegia malacophylla ssp. pedicellata    Jepson's morning glory,  Sierra false bindweed
native
Perennial herb

CONVOLVULACEAE

Calystegia malacophylla ssp. pedicellata
© 2021 R.A. Chasey
Calystegia malacophylla ssp. pedicellata
© 2020 David Greenberger
Calystegia malacophylla ssp. pedicellata
© 2021 Dick Rawson

Calystegia purpurata    Morning glory,  Pacific false bindweed,  Smooth western morning glory
native
Perennial herb

CONVOLVULACEAE

Calystegia purpurata
© 2014 stephen rosenthal
Calystegia purpurata
© 2019 MCOSD Restoration Crew
Calystegia purpurata
© 2022 Suzanne L. Weakley

Calystegia subacaulis    Hill morning glory,  Hillside false bindweed,  Stemless morning glory
native
Perennial herb

CONVOLVULACEAE

Calystegia subacaulis
© 2020 Ken Hickman
Calystegia subacaulis
© 2022 R.A. Chasey
Calystegia subacaulis
© 2022 R.A. Chasey

Camissonia contorta    Contorted sun cup,  Plains evening primrose
native
Annual herb

ONAGRACEAE

Camissonia contorta
© 2023 Dianne Lake
Camissonia contorta
© 2022 Mike Russler
Camissonia contorta
© 2022 Mike Russler

Camissonia graciliflora    Hill sun cup
native
Annual herb

ONAGRACEAE

Camissonia graciliflora
© 2021 Charles Russell
Camissonia graciliflora
© 2010 Richard Spjut
Camissonia graciliflora
© 2016 Richard Spjut

Camissonia hirtella    Hairy sun cup
native
Annual herb

ONAGRACEAE

Camissonia hirtella
© 2019 Steve Matson
Camissonia hirtella
© 2019 Steve Matson
Camissonia hirtella
© 2019 Steve Matson

Campanula exigua    Chaparral harebell
rare native
Annual herb

CAMPANULACEAE

Campanula exigua
© 2019 David Greenberger
Campanula exigua
© 2022 R.A. Chasey
Campanula exigua
© 2019 David Greenberger

Capsella bursa-pastoris    Shepherd's purse
non-native
Annual herb

BRASSICACEAE

Capsella bursa-pastoris
© 2008 Steve Matson
Capsella bursa-pastoris
© 2019 Cynthia Powell
Capsella bursa-pastoris
© 2022 Doug Allshouse

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

Cardamine californica
© 2020 Barbara Peck
Cardamine californica
© 2019 Ron Vanderhoff
Cardamine californica
© 2019 Ron Vanderhoff

Cardamine oligosperma    Bitter cress,  Idaho bittercress
native
Annual, Perennial herb

BRASSICACEAE

Cardamine oligosperma
© 2008 Steve Matson
Cardamine oligosperma
© 2008 Steve Matson
Cardamine oligosperma
© 2008 Steve Matson

Cardaria draba    Whitetop
invasive non-native
Perennial herb

BRASSICACEAE

Cardaria draba
© 2020 Ron Vanderhoff
Cardaria draba
© 2021 Mike Russler
Cardaria draba
© 2020 Ron Vanderhoff

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus
© 2019 Gary McDonald
Carduus pycnocephalus
© 2023 Diana Wahl
Carduus pycnocephalus
© 2017 Gary McDonald

Carduus tenuiflorus    Italian thistle,  Slender flowered thistle,  Winged plumeless thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus tenuiflorus
© 2018 Gary McDonald
Carduus tenuiflorus
© 2018 Gary McDonald
Carduus tenuiflorus
© 2018 Gary McDonald

Carex nudata    Dudley's sedge,  Naked sedge,  Torrent sedge
native
Perennial grasslike herb

CYPERACEAE

Carex nudata
© 2022 R.A. Chasey
Carex nudata
© 2016 David Greenberger
Carex nudata
© 2014 John Malpas

Castilleja affinis    Indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis
© 2019 Aleksandra Evert
Castilleja affinis
© 2019 Diane Etchison
Castilleja affinis
© 2019 Diane Etchison

Castilleja attenuata    Narrow leaved owl's clover,  Valley tassels
native
Annual herb

OROBANCHACEAE

Castilleja attenuata
© 2024 Steve Conger
Castilleja attenuata
© 2024 Mary Ann Machi
Castilleja attenuata
© 2019 Timothy Boomer

Castilleja densiflora    Dense flower owl's clover,  Denseflower indian paintbrush
native
Annual herb

OROBANCHACEAE

Castilleja densiflora
© 2023 Caitlin Kreutz
Castilleja densiflora
© 2019 David Greenberger
Castilleja densiflora
© 2016 Andrew Longman

Castilleja exserta    Owl's clover,  Purple owl's clover
native
Annual herb

OROBANCHACEAE

Castilleja exserta
© 2017 B.J. Dion
Castilleja exserta
© 2018 Saskia Raether
Castilleja exserta
© 2019 Diane Etchison

Castilleja foliolosa    Texas paintbrush,  Woolly indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja foliolosa
© 2019 Ron Vanderhoff
Castilleja foliolosa
© 2019 Diane Etchison
Castilleja foliolosa
© 2019 Diane Etchison

Caucalis microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

Caucalis microcarpa
© 2021 Helen Hancock
Caucalis microcarpa
© 2022 R.A. Chasey
Caucalis microcarpa
© 2012 Toni Corelli

Ceanothus cuneatus    Buck brush,  Wedgeleaf ceanothus
native
Shrub

RHAMNACEAE

Ceanothus cuneatus
© 2021 Steve Matson
Ceanothus cuneatus
© 2021 Steve Matson
Ceanothus cuneatus
© 2021 Steve Matson

Ceanothus leucodermis    Chaparral whitethorn
native
Shrub

RHAMNACEAE

Ceanothus leucodermis
© 2020 Bryant Baker
Ceanothus leucodermis
© 2019 Ron Vanderhoff
Ceanothus leucodermis
© 2019 Bryant Baker

native
Shrub

RHAMNACEAE

Ceanothus oliganthus var. sorediatus
© 2022 R.A. Chasey
Ceanothus oliganthus var. sorediatus
© 2017 Steve Matson
Ceanothus oliganthus var. sorediatus
© 2019 Susan McDougall

Ceanothus sorediatus    Jim brush
native
Shrub

RHAMNACEAE

Ceanothus sorediatus
© 2022 R.A. Chasey
Ceanothus sorediatus
© 2017 Steve Matson
Ceanothus sorediatus
© 2019 Susan McDougall

Centaurea calcitrapa    Purple star thistle,  Red star thistle
invasive non-native
Annual, Perennial herb

ASTERACEAE

Centaurea calcitrapa
© 2021 R.A. Chasey
Centaurea calcitrapa
© 2019 MCOSD EDRR
Centaurea calcitrapa
© 2022 R.A. Chasey

Centaurea melitensis    Maltese star thistle,  Napa star thistle,  Tocalote
invasive non-native
Annual herb

ASTERACEAE

Centaurea melitensis
© 2019 Ron Vanderhoff
Centaurea melitensis
© 2020 Ron Vanderhoff
Centaurea melitensis
© 2020 Laura Anna Arellano

Centaurea solstitialis    Barnaby's thistle,  Yellow star thistle
invasive non-native
Annual herb

ASTERACEAE

Centaurea solstitialis
© 2022 Cynthia Powell
Centaurea solstitialis
© 2019 Arlee Montalvo
Centaurea solstitialis
© 2022 Mary Herr

Centaurium davyi    Davy's centaury
native
Annual herb

GENTIANACEAE

Centaurium davyi
© 2018 Mary Conway
Centaurium davyi
© 2022 Irene Rosen
Centaurium davyi
© 2023 R.A. Chasey

Cerastium glomeratum    Large mouse ears,  Mouseear chickweed,  Sticky chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Cerastium glomeratum
© 2024 Dana York
Cerastium glomeratum
© 2023 Ron Vanderhoff
Cerastium glomeratum
© 2023 R.A. Chasey

Cerastium viscosum    Large mouse ears,  Mouseear chickweed,  Sticky chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Cerastium viscosum
© 2024 Dana York
Cerastium viscosum
© 2023 Ron Vanderhoff
Cerastium viscosum
© 2023 R.A. Chasey

Ceratophyllum demersum    Coon's tail,  Hornwort
native
Perennial herb

CERATOPHYLLACEAE

Ceratophyllum demersum
© 2023 Zoya Akulova-Barlow
Ceratophyllum demersum
© 2018 Ron Vanderhoff
Ceratophyllum demersum
© 2022 Donald Burk

Cercis occidentalis    Redbud,  Western redbud
native
Tree, Shrub

FABACEAE

Cercis occidentalis
© 2023 Cynthia Powell
Cercis occidentalis
© 2020 Julie A. Kierstead
Cercis occidentalis
© 2023 Cynthia Powell

Cercocarpus betuloides    Birch leaf mountain mahogany,  Mountain mahogany
native
Tree, Shrub

ROSACEAE

Cercocarpus betuloides
© 2020 Rebecca Schoenenberger
Cercocarpus betuloides
© 2020 Aaron Echols
Cercocarpus betuloides
© 2016 Cindy Roessler

Chaenactis glabriuscula var. glabriuscula    Common yellow chaenactis,  Yellow pincushion
native
Annual herb

ASTERACEAE

Chaenactis glabriuscula var. glabriuscula
© 2020 David Greenberger
Chaenactis glabriuscula var. glabriuscula
© 2020 R.A. Chasey
Chaenactis glabriuscula var. glabriuscula
© 2020 R.A. Chasey

Chaenactis glabriuscula var. heterocarpha    Variable fruited yellow chaenactis,  Yellow pincushion,  Inner Coast Range Pincushion
native
Annual herb

ASTERACEAE

Chaenactis glabriuscula var. heterocarpha
© 2020 David Greenberger
Chaenactis glabriuscula var. heterocarpha
© 2022 Ryan O'Dell
Chaenactis glabriuscula var. heterocarpha
© 2021 Steve Laymon

Chaenactis tanacetifolia    Variable fruited yellow chaenactis,  Yellow pincushion,  Inner Coast Range Pincushion
native
Annual herb

ASTERACEAE

Chaenactis tanacetifolia
© 2020 David Greenberger
Chaenactis tanacetifolia
© 2022 Ryan O'Dell
Chaenactis tanacetifolia
© 2021 Steve Laymon

Chaetopappa exilis    Meager pygmydaisy,  Slender pentachaeta
native
Annual herb

ASTERACEAE

Chaetopappa exilis
© 2006 Laura Ann Eliassen
Chaetopappa exilis
© 2024 Helen Hancock
Chaetopappa exilis
© 1998 Dean Wm. Taylor

Chamaesyce ocellata    Contura creek spurge
native
Annual herb

EUPHORBIACEAE

Chamaesyce ocellata
© 2005 Steve Matson
Chamaesyce ocellata
© 2005 Steve Matson
Chamaesyce ocellata
© 2023 Donald Burk

Chamaesyce serpyllifolia    Thyme-leafed spurge
native
Annual herb

EUPHORBIACEAE

Chamaesyce serpyllifolia
© 2022 Steve Matson
Chamaesyce serpyllifolia
© 2022 Steve Matson
Chamaesyce serpyllifolia
© 2005 Steve Matson

Chamomilla suaveolens    Pineapple weed
native
Annual herb

ASTERACEAE

Chamomilla suaveolens
© 2008 Steve Matson
Chamomilla suaveolens
© 2008 Steve Matson
Chamomilla suaveolens
© 2018 Stacie Wolny

Cheilanthes intertexta    Coastal lip fern
native
Fern

PTERIDACEAE

Cheilanthes intertexta
© 2018 Adam Chasey
Cheilanthes intertexta
© 2020 R.A. Chasey
Cheilanthes intertexta
© 2020 R.A. Chasey

Chenopodium album    Lamb's quarters,  Lambs quarters,  White goosefoot
non-native
Annual herb

CHENOPODIACEAE

Chenopodium album
© 2022 Ron Vanderhoff
Chenopodium album
© 2014 Toni Corelli
Chenopodium album
© 2022 Ron Vanderhoff

Chenopodium californicum    California goosefoot,  Pigweed,  Soaproot
native
Perennial herb

CHENOPODIACEAE

Chenopodium californicum
© 2023 Mike Russler
Chenopodium californicum
© 2023 Mike Russler
Chenopodium californicum
© 2023 Mike Russler

Chenopodium murale    Nettle leaf goosefoot,  Sowbane
non-native
Annual herb

CHENOPODIACEAE

Chenopodium murale
© 2020 Ron Vanderhoff
Chenopodium murale
© 2019 Diane Etchison
Chenopodium murale
© 2020 Ron Vanderhoff

Chenopodium pratericola    Desert goosefoot,  Meadow goosefoot
native
Annual herb

CHENOPODIACEAE

Chenopodium pratericola
© 2023 Dianne Lake
Chenopodium pratericola
© 2018 Gerald Carr
Chenopodium pratericola
© 2018 Gerald Carr

Chlorogalum pomeridianum    Amole,  Soap plant,  Soaproot
native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum
© 2019 Patrick Furtado
Chlorogalum pomeridianum
© 2020 Robert Katz
Chlorogalum pomeridianum
© 2019 Diane Etchison

Chorizanthe membranacea    Pink spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe membranacea
© 2008 Keir Morse
Chorizanthe membranacea
© 2008 Keir Morse
Chorizanthe membranacea
© 2023 Helen Hancock

Chrysopsis oregona var. scaberrima    Oregon false goldenaster,  Rough oregon goldenaster
native
Perennial herb

ASTERACEAE

Chrysopsis oregona var. scaberrima
© 2017 Ken-ichi Ueda
Chrysopsis oregona var. scaberrima
© 2017 Christopher Hauser
Chrysopsis oregona var. scaberrima
© 2014 Richard Spellenberg

Chrysopsis villosa var. camphorata    Bristly goldenaster,  Sessileflower false goldenaster
native
Perennial herb

ASTERACEAE

Chrysopsis villosa var. camphorata
© 2021 Mike Russler
Chrysopsis villosa var. camphorata
© 2021 Mike Russler
Chrysopsis villosa var. camphorata
© 2018 Ron Vanderhoff

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

Cichorium intybus
© 2020 Bob Sweatt
Cichorium intybus
© 2022 David Strauch
Cichorium intybus
© 2019 Diane Etchison

Cirsium cymosum    Peregrine thistle
native
Perennial herb

ASTERACEAE

Cirsium cymosum
© 2008 Steve Matson
Cirsium cymosum
© 2008 Steve Matson
Cirsium cymosum
© 2008 Steve Matson

Cirsium occidentale var. venustum    Cobwebby thistle,  Red thistle,  Venus thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. venustum
© 2011 Steve Matson
Cirsium occidentale var. venustum
© 2011 Steve Matson
Cirsium occidentale var. venustum
© 2011 Steve Matson

Cirsium proteanum    Cobwebby thistle,  Red thistle,  Venus thistle
native
Perennial herb

ASTERACEAE

Cirsium proteanum
© 2011 Steve Matson
Cirsium proteanum
© 2011 Steve Matson
Cirsium proteanum
© 2011 Steve Matson

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
© 2017 James Bailey
Cirsium vulgare
© 2020 Bob Sweatt
Cirsium vulgare
© 2020 Bob Sweatt

Cistus creticus    Hairy rockrose
non-native
Shrub

CISTACEAE

Cistus creticus
© 2020 Karen Swift
Cistus creticus
© 2023 Ron Vanderhoff
Cistus creticus
© 2018 Julian Geoghegan

Cistus villosus    Hairy rockrose
non-native
Shrub

CISTACEAE

Cistus villosus
© 2020 Karen Swift
Cistus villosus
© 2023 Ron Vanderhoff
Cistus villosus
© 2018 Julian Geoghegan

Clarkia affinis    Chaparral clarkia,  Chaparral fairyfan
native
Annual herb

ONAGRACEAE

Clarkia affinis
© 2019 David Greenberger
Clarkia affinis
© 2019 Ken Hickman
Clarkia affinis
© 2020 Steve Laymon

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
© 2022 Helen Hancock

Clarkia elegans    Elegant clarkia,  Mountain garland,  Woodland clarkia
native
Annual herb

ONAGRACEAE

Clarkia elegans
© 2019 David Greenberger
Clarkia elegans
© 2019 Bryant Baker
Clarkia elegans
© 2021 Mike Russler

Clarkia epilobioides    Canyon clarkia,  Willow herb clarkia
native
Annual herb

ONAGRACEAE

Clarkia epilobioides
© 2017 Steve Matson
Clarkia epilobioides
© 2017 Steve Matson
Clarkia epilobioides
© 2017 Steve Matson

Clarkia modesta    Waltham Creek clarkia
native
Annual herb

ONAGRACEAE

Clarkia modesta
© 2020 David Greenberger
Clarkia modesta
© 2020 Steve Laymon
Clarkia modesta
© 2019 Steve Laymon

Clarkia purpurea ssp. purpurea    Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea ssp. purpurea
© 2020 R.A. Chasey
Clarkia purpurea ssp. purpurea
© 2018 Steve Laymon
Clarkia purpurea ssp. purpurea
© 2020 R.A. Chasey

Clarkia purpurea ssp. quadrivulnera    Four-spot,  Purple clarkia,  Purple godetia
native
Annual herb

ONAGRACEAE

Clarkia purpurea ssp. quadrivulnera
© 2014 Steve Matson
Clarkia purpurea ssp. quadrivulnera
© 2019 Joe Engelbrecht
Clarkia purpurea ssp. quadrivulnera
© 2021 R.A. Chasey

Clarkia rubicunda    Farewell to spring,  Reddened clarkia,  Ruby chalice clarkia
native
Annual herb

ONAGRACEAE

Clarkia rubicunda
© 2019 Stacie Wolny
Clarkia rubicunda
© 2021 John Game
Clarkia rubicunda
© 2019 Stacie Wolny

Clarkia unguiculata    Elegant clarkia,  Mountain garland,  Woodland clarkia
native
Annual herb

ONAGRACEAE

Clarkia unguiculata
© 2019 David Greenberger
Clarkia unguiculata
© 2019 Bryant Baker
Clarkia unguiculata
© 2021 Mike Russler

Claytonia exigua    Little spring beauty,  Serpentine springbeauty
native
Annual herb

MONTIACEAE

Claytonia exigua
© 2019 Matt Berger
Claytonia exigua
© 2023 Steve Conger
Claytonia exigua
© 2022 Mike Russler

Claytonia gypsophiloides    Gypsum spring beauty,  Gypsum springbeauty
native
Annual herb

MONTIACEAE

Claytonia gypsophiloides
© 2021 Miao Ling He
Claytonia gypsophiloides
© 2019 William Lundgren
Claytonia gypsophiloides
© 2023 R.A. Chasey

Claytonia perfoliata    Miners lettuce,  Miner's lettuce,  Rooreh (Ohlone)
native
Annual herb

MONTIACEAE

Claytonia perfoliata
© 2008 Steve Matson
Claytonia perfoliata
© 2019 Gary McDonald
Claytonia perfoliata
© 2020 Ron Vanderhoff

Clematis lasiantha    Chaparral clematis,  Pipestem
native
Perennial herb, Vine

RANUNCULACEAE

Clematis lasiantha
© 2008 Steve Matson
Clematis lasiantha
© 2018 Steve Matson
Clematis lasiantha
© 2018 Steve Matson

Clematis ligusticifolia    Creek clematis,  Western white clematis,  Yerba de chiva
native
Perennial herb, Vine

RANUNCULACEAE

Clematis ligusticifolia
© 2018 Diane Etchison
Clematis ligusticifolia
© 2012 Steve Matson
Clematis ligusticifolia
© 2012 Steve Matson

Collinsia heterophylla    Purple chinese houses
native
Annual herb

PLANTAGINACEAE

Collinsia heterophylla
© 2022 Mary Ann Machi
Collinsia heterophylla
© 2019 David Greenberger
Collinsia heterophylla
© 2019 Ron Vanderhoff

Collinsia sparsiflora    Few flowered collinsia
native
Annual herb

PLANTAGINACEAE

Collinsia sparsiflora
© 2021 Steve Matson
Collinsia sparsiflora
© 2021 Steve Matson
Collinsia sparsiflora
© 2015 Steve Matson

Collomia grandiflora    Grand collomia,  Large flowered collomia,  Mountain collomia
native
Annual herb

POLEMONIACEAE

Collomia grandiflora
© 2024 Mike Russler
Collomia grandiflora
© 2024 Mike Russler
Collomia grandiflora
© 2013 BOB CASE

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
© 2019 James Bailey
Conium maculatum
© 2013 Toni Corelli
Conium maculatum
© 2016 Cynthia Powell

Convolvulus arvensis    Field bindweed,  Orchard morningglory
invasive non-native
Perennial herb, Vine

CONVOLVULACEAE

Convolvulus arvensis
© 2022 Steve Matson
Convolvulus arvensis
© 2021 Ron Vanderhoff
Convolvulus arvensis
© 2022 Steve Matson

Convolvulus occidentalis    Chaparral false bindweed,  Modoc morning glory,  Western morning glory
native
Perennial herb

CONVOLVULACEAE

Convolvulus occidentalis
© 2016 Steve Matson
Convolvulus occidentalis
© 2016 Steve Matson
Convolvulus occidentalis
© 2019 Chico Hiking Association

Convolvulus subacaulis    Cambria morning glory,  Hill morning glory,  Hillside false bindweed
native
Perennial herb

CONVOLVULACEAE

Convolvulus subacaulis
© 2020 Ken Hickman
Convolvulus subacaulis
© 2021 R.A. Chasey
Convolvulus subacaulis
© 2022 R.A. Chasey

Conyza canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

Conyza canadensis
© 2017 Gary McDonald
Conyza canadensis
© 2017 Gary McDonald
Conyza canadensis
© 2022 Mike Russler

Cordylanthus rigidus    Rigid bird's beak,  Stiffbranch bird's beak
native
Annual herb

OROBANCHACEAE

Cordylanthus rigidus
© 2021 Mike Russler
Cordylanthus rigidus
© 2023 Ron Vanderhoff
Cordylanthus rigidus
© 2021 Mike Russler

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
© 2022 Mike Russler
Corethrogyne filaginifolia
© 2018 Ron Vanderhoff
Corethrogyne filaginifolia
© 2019 Diane Etchison

Cornus glabrata    Brown dogwood
native
Tree, Shrub

CORNACEAE

Cornus glabrata
© 2021 Donald Burk
Cornus glabrata
© 2021 Barbara Peck
Cornus glabrata
© 2021 John Rawlings

Crassula aquatica    Aquatic pygmy weed,  Pigmy weed,  Water pygmyweed
native
Annual herb

CRASSULACEAE

Crassula aquatica
© 2019 Ron Vanderhoff
Crassula aquatica
© 2022 Ken-ichi Ueda
Crassula aquatica
© 2022 Catherine Chang

Crassula connata    Pigmy weed,  Sand pygmy weed,  Sand pygmyweed
native
Annual herb

CRASSULACEAE

Crassula connata
© 2020 Ron Vanderhoff
Crassula connata
© 2019 Ron Vanderhoff
Crassula connata
© 2019 Ron Vanderhoff

Crepis capillaris    Hawksbeard,  Smooth hawk's beard,  Smooth hawksbeard
non-native
Annual, Perennial herb

ASTERACEAE

Crepis capillaris
© 2003 Steve Matson
Crepis capillaris
© 2003 Steve Matson
Crepis capillaris
© 2003 Steve Matson

Crypsis schoenoides    Swamp grass,  Swamp picklegrass,  Swamp pricklegrass
non-native
Annual grass

POACEAE

Crypsis schoenoides
© 2023 Ron Vanderhoff
Crypsis schoenoides
© 2018 Ron Vanderhoff
Crypsis schoenoides
© 2019 Ron Vanderhoff

Cryptantha flaccida    Beaked cryptantha,  Flaccid cryptantha,  Weakstem cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha flaccida
© 2018 Alice Cummings
Cryptantha flaccida
© 2016 Steve Matson
Cryptantha flaccida
© 2016 Steve Matson

Cryptantha intermedia    Clearwater cryptantha,  Common cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha intermedia
© 2020 Ron Vanderhoff
Cryptantha intermedia
© 2019 Ron Vanderhoff
Cryptantha intermedia
© 2019 Ron Vanderhoff

Cuscuta californica    California dodder,  Chaparral dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta californica
© 2019 Ron Vanderhoff
Cuscuta californica
© 2018 David popp
Cuscuta californica
© 2019 stephen rosenthal

Cuscuta campestris    Field dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta campestris
© 2017 Ron Vanderhoff
Cuscuta campestris
© 2017 Ron Vanderhoff
Cuscuta campestris
© 2022 Brad Cook

Cuscuta pentagona    Five angled dodder,  Fiveangled dodder,  Western field dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta pentagona
© © 2016 Keir Morse
Cuscuta pentagona
© 2016 Keir Morse
Cuscuta pentagona
© 2016 Keir Morse

Cynodon dactylon    Bermuda grass,  Bermudagrass
invasive non-native
Perennial grass

POACEAE

Cynodon dactylon
© 2021 Ron Vanderhoff
Cynodon dactylon
© 2020 Ron Vanderhoff
Cynodon dactylon
© 2021 Ron Vanderhoff

Cynoglossum grande    Hound's tongue,  Western houndstongue,  Adelinia
native
Perennial herb

BORAGINACEAE

Cynoglossum grande
© 2022 David Strauch
Cynoglossum grande
© 2007 Steve Matson
Cynoglossum grande
© 2021 Dee Shea Himes

Cynosurus echinatus    Annual dogtail,  Bristly dogstail grass,  Dogtail grass
invasive non-native
Annual grass

POACEAE

Cynosurus echinatus
© 2017 Gary McDonald
Cynosurus echinatus
© 2010 Julie A. Kierstead
Cynosurus echinatus
© 2022 Ron Vanderhoff

Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

Cyperus eragrostis
© 2016 Joan Hampton
Cyperus eragrostis
© 2021 Ken Lunders
Cyperus eragrostis
© 2014 James Gonsman

Cypselea humifusa    Panal
non-native
Annual herb

AIZOACEAE

Cypselea humifusa
© 2021 R.A. Chasey
Cypselea humifusa
© 2021 R.A. Chasey
Cypselea humifusa
© 2021 R.A. Chasey

Cystopteris fragilis    Bladder fern,  Brittle bladder fern,  Brittle fern
native
Fern

CYSTOPTERIDACEAE

Cystopteris fragilis
© 2020 Bob Sweatt
Cystopteris fragilis
© 2021 Mike Russler
Cystopteris fragilis
© 2023 Ken-ichi Ueda

Datisca glomerata    Durango root
native
Perennial herb

DATISCACEAE

Datisca glomerata
© 2019 Ron Vanderhoff
Datisca glomerata
© 2019 Diane Etchison
Datisca glomerata
© 2019 Matt Berger

Datura meteloides    Jimsonweed,  Sacred thorn apple,  Toluaca
native
Perennial herb

SOLANACEAE

Datura meteloides
© 2017 Lisa Miller
Datura meteloides
© 2019 Ron Vanderhoff
Datura meteloides
© 2020 Mike McNamara

Datura wrightii    Jimsonweed,  Sacred thorn apple,  Toluaca
native
Perennial herb

SOLANACEAE

Datura wrightii
© 2017 Lisa Miller
Datura wrightii
© 2019 Ron Vanderhoff
Datura wrightii
© 2020 Mike McNamara

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

Daucus pusillus
© 2019 Diane Etchison
Daucus pusillus
© 2022 David Wolfson
Daucus pusillus
© 2021 Ken Lunders

Delphinium californicum    California larkspur,  Coast larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium californicum
© 2019 Stacie Wolny
Delphinium californicum
© 2017 David Greenberger
Delphinium californicum
© 2019 Sue Graue

Delphinium decorum    Coast larkspur,  Coastal larkspur,  Larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium decorum
© 2024 Mary Ann Machi
Delphinium decorum
© 2024 Mary Ann Machi
Delphinium decorum
© 2021 Mary Ann Machi

Delphinium hesperium    Foothill larkspur,  Western larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium hesperium
© 2022 R.A. Chasey
Delphinium hesperium
© 2020 Fred Melgert / Carla Hoegen
Delphinium hesperium
© 2020 Fred Melgert / Carla Hoegen

Delphinium nudicaule    Canyon larkspur,  Red or Orange Larkspur,  Red larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium nudicaule
© 2006 Steve Matson
Delphinium nudicaule
© 2006 Steve Matson
Delphinium nudicaule
© 2024 Mary Ann Machi

Delphinium parryi    San bernardino larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium parryi
© 2019 Diane Etchison
Delphinium parryi
© Geoff Burleigh
Delphinium parryi
© 2019 Diane Etchison

Delphinium patens    Spreading larkspur,  Zigzag larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium patens
© 2018 James Gonsman
Delphinium patens
© 2020 Amy Rapport
Delphinium patens
© 2022 Mary Conway

Delphinium variegatum    Royal larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium variegatum
© 2009 BOB CASE
Delphinium variegatum
© 2021 Robin Carter
Delphinium variegatum
© 2023 R.A. Chasey

Dentaria californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

Dentaria californica
© 2020 Barbara Peck
Dentaria californica
© 2019 Ron Vanderhoff
Dentaria californica
© 2019 Ron Vanderhoff

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

Deschampsia danthonioides
© 2003 Steve Matson
Deschampsia danthonioides
© 2003 Steve Matson
Deschampsia danthonioides
© 2018 Emily Allen

Descurainia pinnata ssp. menziesii    Menzies' tansy mustard,  Menzies' tansymustard,  Menzies'western tansy mustard
native
Annual herb

BRASSICACEAE

Descurainia pinnata ssp. menziesii
© 2018 Nancy Hamlett
Descurainia pinnata ssp. menziesii
© 2018 Nancy Hamlett
Descurainia pinnata ssp. menziesii
© 2018 Nancy Hamlett

Descurainia sophia    Flix weed,  Herb sophia
invasive non-native
Annual herb

BRASSICACEAE

Descurainia sophia
© 2014 Steve Matson
Descurainia sophia
© 2021 R.A. Chasey
Descurainia sophia
© 2014 Steve Matson

Dicentra chrysantha    Golden eardrops
native
Perennial herb

PAPAVERACEAE

Dicentra chrysantha
© 2019 David Greenberger
Dicentra chrysantha
© 2020 Bryant Baker
Dicentra chrysantha
© 2019 Ron Vanderhoff

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
© 2023 Steve Matson
Dichelostemma capitatum
© 2023 Steve Matson
Dichelostemma capitatum
© 2022 Steve Matson

Dichelostemma congestum    Fork toothed ookow,  Ookow
native
Perennial herb

THEMIDACEAE

Dichelostemma congestum
© 2017 Gary Morgret
Dichelostemma congestum
© 2019 Suzanne L. Weakley
Dichelostemma congestum
© 2023 Teal Derrer

Dichelostemma pulchellum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma pulchellum
© 2023 Steve Matson
Dichelostemma pulchellum
© 2023 Steve Matson
Dichelostemma pulchellum
© 2022 Steve Matson

Dipsacus sativus    Fuller's teasel,  Indian teasel
invasive non-native
Annual, Biennial herb

DIPSACACEAE

Dipsacus sativus
© 2019 Danielle Carney
Dipsacus sativus
© 2022 Jennifer Mo
Dipsacus sativus
© 2022 David Strauch

Distichlis spicata    Inland saltgrass,  Salt grass,  Saltgrass
native
Perennial grass

POACEAE

Distichlis spicata
© 2020 Matt Berger
Distichlis spicata
© 2019 Ron Vanderhoff
Distichlis spicata
© 2022 Donald Burk

Dodecatheon clevelandii ssp. patulum    Padre's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii ssp. patulum
© 2006 Steve Matson
Dodecatheon clevelandii ssp. patulum
© 2006 Steve Matson
Dodecatheon clevelandii ssp. patulum
© 2006 Steve Matson

Dodecatheon hendersonii    Mosquito bill
native
Perennial herb

PRIMULACEAE

Dodecatheon hendersonii
© 2016 Steve Matson
Dodecatheon hendersonii
© 2016 Steve Matson
Dodecatheon hendersonii
© 2020 BLM Redding Field Office

Draba verna    Spring draba,  Whitlow grass,  Whitlowgrass
non-native
Annual herb

BRASSICACEAE

Draba verna
© 2011 Steve Matson
Draba verna
© 2004 Steve Matson
Draba verna
© 2016 Steve Matson

Dryopteris arguta    California wood fern,  Coastal wood fern,  Shield fern
native
Fern

DRYOPTERIDACEAE

Dryopteris arguta
© 2018 James Gonsman
Dryopteris arguta
© 2019 Rebecca Crowe
Dryopteris arguta
© 2023 Julia Markey

Dudleya cymosa    Canyon dudleya,  Canyon liveforever,  Rock lettuce
native
Perennial herb

CRASSULACEAE

Dudleya cymosa
© 2019 Steve Matson
Dudleya cymosa
© 2019 Steve Matson
Dudleya cymosa
© 2020 Kristin Sabo

Echinochloa crus-galli    Barnyard grass,  Japanese millet,  Watergrass
non-native
Annual grass

POACEAE

Echinochloa crus-galli
© 2016 Barbara Boethling
Echinochloa crus-galli
© 2022 R.A. Chasey
Echinochloa crus-galli
© 2008 Zoya Akulova

Eleocharis macrostachya    Common spikerush,  Creeping spike rush,  Pale spikerush
native
Perennial grasslike herb

CYPERACEAE

Eleocharis macrostachya
© 2023 Ron Vanderhoff
Eleocharis macrostachya
© 2023 Ron Vanderhoff
Eleocharis macrostachya
© 2003 Steve Matson

Eleocharis palustris    Common spikerush
native
Perennial grasslike herb

CYPERACEAE

Eleocharis palustris
© 2011 Gerald Carr
Eleocharis palustris
© 2011 Gerald Carr
Eleocharis palustris
© 2020 Ron Vanderhoff

Eleocharis rostellata    Beaked spikerush,  Walking sedge
native
Perennial grasslike herb

CYPERACEAE

Eleocharis rostellata
© 2015 Steve Matson
Eleocharis rostellata
© 2015 Steve Matson
Eleocharis rostellata
© 2015 Steve Matson

Elymus glaucus    Blue wildrye
native
Perennial grass

POACEAE

Elymus glaucus
© 2020 Denise Defreese
Elymus glaucus
© 2019 Patrick Furtado
Elymus glaucus
© 2018 Cynthia Powell

Elymus multisetus    Big squirreltail grass
native
Perennial grass

POACEAE

Elymus multisetus
© 2019 Ron Vanderhoff
Elymus multisetus
© 2023 Helen Hancock
Elymus multisetus
© 2021 Denise Defreese

Emmenanthe penduliflora    Whispering bells,  Whisperingbells
native
Annual herb

HYDROPHYLLACEAE

Emmenanthe penduliflora
© 2022 Steve Matson
Emmenanthe penduliflora
© 2022 Steve Matson
Emmenanthe penduliflora
© 2022 Steve Matson

Epilobium adenocaulon var. adenocaulon    Fringed willowherb,  Northern willow herb,  Willow herb
native
Perennial herb

ONAGRACEAE

Epilobium adenocaulon var. adenocaulon
© 2014 Steve Matson
Epilobium adenocaulon var. adenocaulon
© 2014 Steve Matson
Epilobium adenocaulon var. adenocaulon
© 2014 Steve Matson

Epilobium brachycarpum    Annual fireweed,  Autumn willowweed,  Panicled willow herb
native
Annual herb

ONAGRACEAE

Epilobium brachycarpum
© 2023 Mary Ann Machi
Epilobium brachycarpum
© 2019 Ramona Robison
Epilobium brachycarpum
© 2020 Ron Vanderhoff

Epilobium canum    California fuchsia,  Hummingbird trumpet,  zauschneria
native
Perennial herb

ONAGRACEAE

Epilobium canum
© 2018 Ron Vanderhoff
Epilobium canum
© 2015 Gerald Carr
Epilobium canum
© 2015 Gerald Carr

Epilobium ciliatum    Fringed willowherb,  Northern willow herb,  Slender willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum
© 2021 stephen rosenthal
Epilobium ciliatum
© 2019 Patrick Furtado
Epilobium ciliatum
© 2019 Gary McDonald

Epilobium densiflorum    Dense boisduvalia,  Dense flowered boisduvalia,  Dense flowered spike primrose
native
Annual herb

ONAGRACEAE

Epilobium densiflorum
© 2009 BOB CASE
Epilobium densiflorum
© 2021 Mike Russler
Epilobium densiflorum
© 2020 Bob Sweatt

Epilobium minutum    Chaparral willowherb,  Desert willow herb,  Little willowherb
native
Annual herb

ONAGRACEAE

Epilobium minutum
© 2017 Michael Mitchell
Epilobium minutum
© 2021 R.A. Chasey
Epilobium minutum
© 2019 Ken Lunders

Epilobium paniculatum    Annual fireweed,  Autumn willowweed,  Panicled willow herb
native
Annual herb

ONAGRACEAE

Epilobium paniculatum
© 2023 Mary Ann Machi
Epilobium paniculatum
© 2019 Ramona Robison
Epilobium paniculatum
© 2020 Ron Vanderhoff

Epilobium torreyi    Narrow boisduvalia,  Narrow leaved boisduvalia,  Torrey's willowherb
native
Annual herb

ONAGRACEAE

Epilobium torreyi
© 2023 R.A. Chasey
Epilobium torreyi
© 2004 Norman Jensen
Epilobium torreyi
© 2022 R.A. Chasey

Epipactis gigantea    Giant helleborine,  Stream orchid,  Stream orchis
native
Perennial herb

ORCHIDACEAE

Epipactis gigantea
© 2016 Barry Rice
Epipactis gigantea
© 2020 Ron Vanderhoff
Epipactis gigantea
© 2018 Anna Sereno

Equisetum laevigatum    Horsetail,  Smooth horsetail,  Smooth scouring rush
native
Fern

EQUISETACEAE

Equisetum laevigatum
© 2020 Ron Vanderhoff
Equisetum laevigatum
© 2021 Ron Vanderhoff
Equisetum laevigatum
© 2021 Richard Spjut

Equisetum telmateia ssp. braunii    Giant horse tail,  Giant horsetail
native
Fern

EQUISETACEAE

Equisetum telmateia ssp. braunii
© 2016 Steve Matson
Equisetum telmateia ssp. braunii
© 2016 Steve Matson
Equisetum telmateia ssp. braunii
© 2022 Suzanne L. Weakley

Erechtites arguta    Cutleaf burnweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Erechtites arguta
© 2015 Lynn Overtree
Erechtites arguta
© 2023 R.A. Chasey
Erechtites arguta
© 2021 Mary Conway

Erechtites glomerata    Cutleaf burnweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Erechtites glomerata
© 2015 Lynn Overtree
Erechtites glomerata
© 2023 R.A. Chasey
Erechtites glomerata
© 2021 Mary Conway

Eremocarpus setigerus    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Eremocarpus setigerus
© 2011 Steve Matson
Eremocarpus setigerus
© 2011 Steve Matson
Eremocarpus setigerus
© 2014 Richard Chasey

Eriastrum abramsii    Abrams' eriastrum,  Abrams' woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum abramsii
© 2019 Diane Renshaw
Eriastrum abramsii
© 2021 Alice Cummings
Eriastrum abramsii
© 2019 Stacie Wolny

Eriastrum pluriflorum    Many flowered eriastrum,  Tehachapi woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum pluriflorum
© 2021 Mike Russler
Eriastrum pluriflorum
© 2021 Mike Russler
Eriastrum pluriflorum
© 2022 David Strauch

Ericameria arborescens    Golden fleece,  Goldenfleece
native
Shrub

ASTERACEAE

Ericameria arborescens
© 2019 Bryant Baker
Ericameria arborescens
© 2019 Bryant Baker
Ericameria arborescens
© 2015 Hayley Ross

Ericameria linearifolia    Interior goldenbush,  Linear leaved goldenbush,  Narrowleaf goldenbush
native
Shrub

ASTERACEAE

Ericameria linearifolia
© 2014 Steve Matson
Ericameria linearifolia
© 2014 Steve Matson
Ericameria linearifolia
© 2014 Steve Matson

Erigeron foliosus    Leafy daisy,  Leafy fleabane
native
Perennial herb

ASTERACEAE

Erigeron foliosus
© 2022 Ron Vanderhoff
Erigeron foliosus
© 2022 Ryan O'Dell
Erigeron foliosus
© 2023 R.A. Chasey

Erigeron petrophilus    Cliff fleabane,  Rockloving erigeron,  Rock-Loving Fleabane
native
Perennial herb

ASTERACEAE

Erigeron petrophilus
© 2014 Steve Matson
Erigeron petrophilus
© 2014 Steve Matson
Erigeron petrophilus
© 2014 Steve Matson

Erigeron philadelphicus    Philadelphia fleabane
native
Perennial herb

ASTERACEAE

Erigeron philadelphicus
© 2023 R.A. Chasey
Erigeron philadelphicus
© 2021 R.A. Chasey
Erigeron philadelphicus
© 2023 R.A. Chasey

Eriodictyon californicum    California yerba santa,  Yerba santa
native
Shrub

NAMACEAE

Eriodictyon californicum
© 2023 Suzanne L. Weakley
Eriodictyon californicum
© 2022 BOB CASE
Eriodictyon californicum
© 2020 Julie A. Kierstead

Eriogonum fasciculatum var. foliolosum    California buckwheat,  Eastern mojave buckwheat,  Red topped buckwheat
native
Shrub

POLYGONACEAE

Eriogonum fasciculatum var. foliolosum
© 2016 Michael Mitchell
Eriogonum fasciculatum var. foliolosum
© 2015 Michael Mitchell
Eriogonum fasciculatum var. foliolosum
© 2015 Michael Mitchell

Eriogonum gracile    Slender buckwheat,  Slender woolly buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum gracile
© 2022 Mike Russler
Eriogonum gracile
© 2018 Fred Melgert / Carla Hoegen
Eriogonum gracile
© 2019 Hailey Laskey

Eriogonum luteolum var. luteolum    Golden buckwheat,  Goldencarpet buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum luteolum var. luteolum
© 2011 Steve Matson
Eriogonum luteolum var. luteolum
© 2011 Steve Matson
Eriogonum luteolum var. luteolum
© 2011 Steve Matson

Eriogonum nudum    Naked buckwheat,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum
© 2011 Steve Matson
Eriogonum nudum
© 2014 Steve Matson
Eriogonum nudum
© 2008 Steve Matson

Eriogonum roseum    Wand buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum roseum
© 2019 Matt Berger
Eriogonum roseum
© 2014 Steve Matson
Eriogonum roseum
© 2014 Steve Matson

Eriogonum vimineum    Wicker buckwheat,  Wicker stemmed eriogonum,  Wickerstem buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum vimineum
© 2019 David Greenberger
Eriogonum vimineum
© 2019 David popp
Eriogonum vimineum
© 2008 Keir Morse

Eriogonum wrightii    Bastardsage,  Wright's buckwheat
native
Perennial herb, Shrub

POLYGONACEAE

Eriogonum wrightii
© 2020 Bob Sweatt
Eriogonum wrightii
© 2019 Steve Matson
Eriogonum wrightii
© 2020 Bob Sweatt

Eriophyllum confertiflorum    Golden yarrow,  Yellow yarrow
native
Shrub

ASTERACEAE

Eriophyllum confertiflorum
© 2019 Stacie Wolny
Eriophyllum confertiflorum
© 2022 Mojgan Mahdizadeh
Eriophyllum confertiflorum
© 2019 Marisa Persaud

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

Erodium botrys    Big heron bill,  Broad leaf filaree,  Long beaked filaree
non-native
Annual herb

GERANIACEAE

Erodium botrys
© 2006 Steve Matson
Erodium botrys
© 2006 Steve Matson
Erodium botrys
© 2006 Steve Matson

Erodium brachycarpum    Foothill filaree,  Short fruited filaree,  Shortfruit stork's bill
invasive non-native
Annual herb

GERANIACEAE

Erodium brachycarpum
© 2016 Bob van Duinen
Erodium brachycarpum
© 2020 Angelique Herman
Erodium brachycarpum
© 2016 Steve Matson

Erodium cicutarium    Coastal heron's bill,  Red stemmed filaree,  Redstem stork's bill
invasive non-native
Annual herb

GERANIACEAE

Erodium cicutarium
© 2022 Steve Matson
Erodium cicutarium
© 2008 Steve Matson
Erodium cicutarium
© 2022 Steve Matson

Erodium moschatum    Musky stork's bill,  White stemmed filaree,  Whitestem filaree
invasive non-native
Annual herb

GERANIACEAE

Erodium moschatum
© 2016 Steve Matson
Erodium moschatum
© 2016 Steve Matson
Erodium moschatum
© 2016 Steve Matson

Erodium obtusiplicatum    Foothill filaree,  Short fruited filaree,  Shortfruit stork's bill
invasive non-native
Annual herb

GERANIACEAE

Erodium obtusiplicatum
© 2016 Bob van Duinen
Erodium obtusiplicatum
© 2020 Angelique Herman
Erodium obtusiplicatum
© 2016 Steve Matson

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
© 2018 Janith Johnson
Erysimum capitatum
© 2023 Julia Markey
Erysimum capitatum
© 2019 Diane Etchison

Eschscholzia caespitosa    Foothill poppy,  Tufted eschscholzia,  Tufted poppy
native
Annual herb

PAPAVERACEAE

Eschscholzia caespitosa
© 2019 Ron Vanderhoff
Eschscholzia caespitosa
© 2021 Lisa Berry
Eschscholzia caespitosa
© 2022 Cynthia Powell

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica
© 2019 Dee Shea Himes
Eschscholzia californica
© 2021 Ron Vanderhoff
Eschscholzia californica
© 2019 Amy Rapport

Euphorbia crenulata    Chinese caps,  Chinesecaps
native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia crenulata
© 2008 Steve Matson
Euphorbia crenulata
© 2008 Steve Matson
Euphorbia crenulata
© 2008 Steve Matson

Euphorbia ocellata    Contura creek spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia ocellata
© 2005 Steve Matson
Euphorbia ocellata
© 2005 Steve Matson
Euphorbia ocellata
© 2023 Donald Burk

Euphorbia serpyllifolia    Thyme-leafed spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia serpyllifolia
© 2022 Steve Matson
Euphorbia serpyllifolia
© 2022 Steve Matson
Euphorbia serpyllifolia
© 2005 Steve Matson

Euphorbia spathulata    Reticulate seeded spurge,  Warty spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia spathulata
© 2021 R.A. Chasey
Euphorbia spathulata
© 2014 Steve Matson
Euphorbia spathulata
© 2014 Steve Matson

Euthamia occidentalis    Western flat topped goldenrod,  Western goldenrod,  Western goldentop
native
Perennial herb

ASTERACEAE

Euthamia occidentalis
© 2021 Steve Matson
Euthamia occidentalis
© 2018 Ron Vanderhoff
Euthamia occidentalis
© 2021 R.A. Chasey

Evax acaulis    Dwarf dwarf cudweed,  Hogwallow starfish
rare native
Annual herb

ASTERACEAE

Evax acaulis
© 2018 John Dittes
Evax acaulis
© 2020 Phil Johnson
Evax acaulis
© 2022 Steve Matson

Evax sparsiflora    Erect dwarf cudweed,  Few flowered evax
native
Annual herb

ASTERACEAE

Evax sparsiflora
© 2020 Stacie Wolny
Evax sparsiflora
© 2020 R.A. Chasey
Evax sparsiflora
© 2022 R.A. Chasey

Festuca arundinacea    Alta fescue,  Reed fescue,  Tall fescue
invasive non-native
Perennial grass

POACEAE

Festuca arundinacea
© 2022 Cynthia Powell
Festuca arundinacea
© 2020 Robert Steers
Festuca arundinacea
© 2017 MCOSD EDRR

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

Festuca bromoides
© 2022 Diana Wahl
Festuca bromoides
© 2021 Toni Corelli
Festuca bromoides
© 2021 David popp

Festuca californica    California fescue
native
Perennial grass

POACEAE

Festuca californica
© 2019 Justin Luong
Festuca californica
© 2022 Justin Luong
Festuca californica
© 2012 Aaron Arthur

Festuca eastwoodae    Small fescue
native
Annual grass

POACEAE

Festuca eastwoodae
© 2011 Steve Matson
Festuca eastwoodae
© 2024 Emily R. Allen
Festuca eastwoodae
© 2011 Steve Matson

Festuca elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

Festuca elmeri
© 2019 Ken Hickman
Festuca elmeri
© 2022 John Rawlings
Festuca elmeri
© 2007 Toni Corelli

Festuca megalura    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Festuca megalura
© 2021 Aaron Echols
Festuca megalura
© 2021 Ron Vanderhoff
Festuca megalura
© 2022 John Rawlings

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Festuca myuros
© 2021 Aaron Echols
Festuca myuros
© 2021 Ron Vanderhoff
Festuca myuros
© 2022 John Rawlings

Festuca reflexa    Small fescue
native
Annual grass

POACEAE

Festuca reflexa
© 2011 Steve Matson
Festuca reflexa
© 2024 Emily R. Allen
Festuca reflexa
© 2011 Steve Matson

Filago gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Filago gallica
© 2017 Barbara Boethling
Filago gallica
© 2023 Ron Vanderhoff
Filago gallica
© 2023 Ron Vanderhoff

Foeniculum vulgare    Biscuit root,  Sweet fennel
invasive non-native
Perennial herb

APIACEAE

Foeniculum vulgare
© 2019 Nicole Leatherman
Foeniculum vulgare
© 2019 Ron Vanderhoff
Foeniculum vulgare
© 2018 Henry DiRocco

Forestiera neomexicana    Desert olive,  Stretchberry
native
Shrub

OLEACEAE

Forestiera neomexicana
© 2012 Steve Matson
Forestiera neomexicana
© 2017 Steve Matson
Forestiera neomexicana
© 2017 Steve Matson

Forestiera pubescens    Desert olive,  Stretchberry
native
Shrub

OLEACEAE

Forestiera pubescens
© 2012 Steve Matson
Forestiera pubescens
© 2017 Steve Matson
Forestiera pubescens
© 2017 Steve Matson

Fraxinus dipetala    California ash,  Flowering ash,  Foothill ash
native
Tree, Shrub

OLEACEAE

Fraxinus dipetala
© 2023 Ron Vanderhoff
Fraxinus dipetala
© 2021 Bryant Baker
Fraxinus dipetala
© 2021 Bryant Baker

Fritillaria affinis    Checker lily,  Mission bells
native
Perennial herb (bulb)

LILIACEAE

Fritillaria affinis
© 2008 Steve Matson
Fritillaria affinis
© 2008 Steve Matson
Fritillaria affinis
© 2008 Steve Matson

Fritillaria lanceolata    Checker lily,  Mission bells
native
Perennial herb (bulb)

LILIACEAE

Fritillaria lanceolata
© 2008 Steve Matson
Fritillaria lanceolata
© 2008 Steve Matson
Fritillaria lanceolata
© 2008 Steve Matson

Galium andrewsii    Needlemat galium,  Phlox leaved bedstraw,  Phloxleaf bedstraw
native
Perennial herb

RUBIACEAE

Galium andrewsii
© 2022 Mike Russler
Galium andrewsii
© 2019 Marisa Persaud
Galium andrewsii
© 2022 Mike Russler

Galium aparine    Cleavers,  Common bedstraw,  Goose grass
native
Annual herb

RUBIACEAE

Galium aparine
© 2020 Ron Vanderhoff
Galium aparine
© 2005 Steve Matson
Galium aparine
© 2020 Ron Vanderhoff

Galium californicum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum
© 2006 Steve Matson
Galium californicum
© 2014 Steve Matson
Galium californicum
© 2014 Steve Matson

Galium murale    Tiny bedstraw,  Yellow wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium murale
© 2022 R.A. Chasey
Galium murale
© 2021 Cameron Chabre
Galium murale
© 2014 Bryan Derr

Galium nuttallii var. ovalifolium    Climbing bedstraw,  Graceful bedstraw,  Oval leaved bedstraw
native
Vine, Shrub

RUBIACEAE

Galium nuttallii var. ovalifolium
© 2022 Ron Vanderhoff
Galium nuttallii var. ovalifolium
© 2022 Ron Vanderhoff
Galium nuttallii var. ovalifolium
© 2022 Julia Larke

Galium parisiense    Wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium parisiense
© 2021 Al Keuter
Galium parisiense
© 2020 Ron Vanderhoff
Galium parisiense
© 2019 Diane Etchison

Galium porrigens    Climbing bedstraw,  Graceful bedstraw,  Nuttall's bedstraw
native
Vine, Shrub

RUBIACEAE

Galium porrigens
© 2005 Steve Matson
Galium porrigens
© 2005 Steve Matson
Galium porrigens
© 2005 Steve Matson

Garrya flavescens    Ashy silk tassel,  Ashy silktassel
native
Shrub

GARRYACEAE

Garrya flavescens
© 2020 Diane Etchison
Garrya flavescens
© 2023 Ryan O'Dell
Garrya flavescens
© 2020 Ron Vanderhoff

Garrya flavescens var. pallida    Ashy silk tassel,  Ashy silktassel
native
Shrub

GARRYACEAE

Garrya flavescens var. pallida
© 2020 Diane Etchison
Garrya flavescens var. pallida
© 2023 Ryan O'Dell
Garrya flavescens var. pallida
© 2020 Ron Vanderhoff

Gastridium ventricosum    Nit grass
non-native
Annual grass

POACEAE

Gastridium ventricosum
© 2020 Ron Vanderhoff
Gastridium ventricosum
© 2020 Ron Vanderhoff
Gastridium ventricosum
© 2017 Gary McDonald

Geranium bicknellii    Bicknell's cranesbill,  Bicknell's geranium
native
Annual herb

GERANIACEAE

Geranium bicknellii
© 2010 Jeff Abbas
Geranium bicknellii
© 2006 Louis-M. Landry
Geranium bicknellii
© 2010 Jeff Abbas

Geranium dissectum    Cranesbill,  Cut leaved geranium,  Cutleaf geranium
invasive non-native
Annual herb

GERANIACEAE

Geranium dissectum
© 2021 Al Keuter
Geranium dissectum
© 2023 Ron Vanderhoff
Geranium dissectum
© 2014 Bryan Derr

Geranium molle    Crane's bill geranium,  Dove's foot geranium,  Dovefoot geranium
invasive non-native
Annual, Perennial herb

GERANIACEAE

Geranium molle
© 2008 Steve Matson
Geranium molle
© 2008 Steve Matson
Geranium molle
© 2008 Steve Matson

Geranium pusillum    Small flowered geranium,  Small geranium
non-native
Annual herb

GERANIACEAE

Geranium pusillum
© 2014 Zoya Akulova
Geranium pusillum
© 2016 Dr. Amadej Trnkoczy
Geranium pusillum
© 2012 Phil Pullen

native
Annual herb

POLEMONIACEAE

Gilia achilleifolia ssp. achilleifolia
© 2021 Helen Hancock
Gilia achilleifolia ssp. achilleifolia
© 2022 R.A. Chasey
Gilia achilleifolia ssp. achilleifolia
© 2021 Mary Conway

Gilia achilleifolia ssp. multicaulis    Many stemmed california gilia,  Many stemmed gilia
native
Annual herb

POLEMONIACEAE

Gilia achilleifolia ssp. multicaulis
© 2022 Ron Vanderhoff
Gilia achilleifolia ssp. multicaulis
© 2021 Ron Vanderhoff
Gilia achilleifolia ssp. multicaulis
© 2022 Ron Vanderhoff

Gilia clivorum    Many stemmed gilia,  Purple spot gilia,  Purplespot gilia
native
Annual herb

POLEMONIACEAE

Gilia clivorum
© 2013 Gary McDonald
Gilia clivorum
© 2013 Gary McDonald
Gilia clivorum
© 2021 Helen Hancock

Gilia gilioides    Dense false gilia,  Dense false gilyflower
native
Annual herb

POLEMONIACEAE

Gilia gilioides
© 2022 Mary Conway
Gilia gilioides
© 2019 Steve Matson
Gilia gilioides
© 2019 Steve Matson

Gilia tricolor    Bird's eye gilia,  Bird's eyes,  Tricolor gilia
native
Annual herb

POLEMONIACEAE

Gilia tricolor
© 2021 Steve Matson
Gilia tricolor
© 2022 Steve Matson
Gilia tricolor
© 2021 Steve Matson

Githopsis specularioides    Common bluecup,  Venus' looking glass
native
Annual herb

CAMPANULACEAE

Githopsis specularioides
© 2016 Steve Matson
Githopsis specularioides
© 2016 Steve Matson
Githopsis specularioides
© 2021 Mike Russler

Glinus lotoides    Lotus sweetjuice
non-native
Annual herb

MOLLUGINACEAE

Glinus lotoides
© 2021 R.A. Chasey
Glinus lotoides
© 2021 Donald Burk
Glinus lotoides
© 2021 Donald Burk

Glycyrrhiza lepidota    American licorice,  Lichorice,  Wild licorice
native
Perennial herb

FABACEAE

Glycyrrhiza lepidota
© 2010 Steve Matson
Glycyrrhiza lepidota
© 2010 Steve Matson
Glycyrrhiza lepidota
© 2010 Steve Matson

Gnaphalium californicum    Ladies' tobacco
native
Annual, Perennial herb

ASTERACEAE

Gnaphalium californicum
© 2019 Gary McDonald
Gnaphalium californicum
© 2020 Steven M Norris
Gnaphalium californicum
© 2021 Ron Vanderhoff

Gnaphalium luteo-album    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Gnaphalium luteo-album
© 2021 Ron Vanderhoff
Gnaphalium luteo-album
© 2019 Diane Etchison
Gnaphalium luteo-album
© 2021 Ron Vanderhoff

Gnaphalium palustre    Lowland cudweed,  Western marsh cudweed
native
Annual herb

ASTERACEAE

Gnaphalium palustre
© 2019 Ron Vanderhoff
Gnaphalium palustre
© 2005 Steve Matson
Gnaphalium palustre
© 2019 Ron Vanderhoff

Grindelia camporum    Common gumplant,  Great valley gumweed,  Gum plant
native
Perennial herb

ASTERACEAE

Grindelia camporum
© 2023 R.A. Chasey
Grindelia camporum
© 2019 Ron Vanderhoff
Grindelia camporum
© 2019 Ron Vanderhoff

Guillenia lasiophylla    California mustard
native
Annual herb

BRASSICACEAE

Guillenia lasiophylla
© 2022 Steve Matson
Guillenia lasiophylla
© 2023 Steve Matson
Guillenia lasiophylla
© 2010 Steve Matson

Gutierrezia bracteata    California matchweed,  Matchweed, snakeweed,  San joaquin snakeweed
native
Perennial herb, Shrub

ASTERACEAE

Gutierrezia bracteata
© 2021 Helen Hancock
Gutierrezia bracteata
© 2018 Ron Vanderhoff
Gutierrezia bracteata
© 2021 Mike Russler

Gutierrezia californica    California matchweed,  Matchweed, snakeweed,  San joaquin snakeweed
native
Perennial herb, Shrub

ASTERACEAE

Gutierrezia californica
© 2021 Helen Hancock
Gutierrezia californica
© 2018 Ron Vanderhoff
Gutierrezia californica
© 2021 Mike Russler

Habenaria elegans    Elegant piperia
native
Perennial herb

ORCHIDACEAE

Habenaria elegans
© 2018 Saskia Raether
Habenaria elegans
© 2022 Cynthia Powell
Habenaria elegans
© 2017 Nicole Mercier

Habenaria unalascensis    Alaska piperia,  Alaska rein orchid,  Rein orchid
native
Perennial herb

ORCHIDACEAE

Habenaria unalascensis
© 2006 Steve Matson
Habenaria unalascensis
© 2022 Steve Matson
Habenaria unalascensis
© 2019 Ron Vanderhoff

Haplopappus arborescens    Golden fleece,  Goldenfleece
native
Shrub

ASTERACEAE

Haplopappus arborescens
© 2019 Bryant Baker
Haplopappus arborescens
© 2019 Bryant Baker
Haplopappus arborescens
© 2015 Hayley Ross

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
© 2021 Mike Russler
Helenium puberulum
© 2019 Patrick Furtado
Helenium puberulum
© 2018 Rachelle Gray

Heleochloa schoenoides    Swamp grass,  Swamp picklegrass,  Swamp pricklegrass
non-native
Annual grass

POACEAE

Heleochloa schoenoides
© 2023 Ron Vanderhoff
Heleochloa schoenoides
© 2018 Ron Vanderhoff
Heleochloa schoenoides
© 2019 Ron Vanderhoff

Helianthella californica    California helianthella
native
Perennial herb

ASTERACEAE

Helianthella californica
© 2024 Helen Hancock
Helianthella californica
© 2019 Suzanne L. Weakley
Helianthella californica
© 2020 Julie A. Kierstead

Helianthemum scoparium    Peak Rushrose
native
Shrub

CISTACEAE

Helianthemum scoparium
© 2018 Amy Rapport
Helianthemum scoparium
© 2023 Ron Vanderhoff
Helianthemum scoparium
© 2022 R.A. Chasey

native
Shrub

CISTACEAE

Helianthemum scoparium var. vulgare
© 2020 Janice Kuch
Helianthemum scoparium var. vulgare
© 2018 Ron Vanderhoff
Helianthemum scoparium var. vulgare
© 2010 Ron Vanderhoff

Helianthus californicus    California sunflower
native
Perennial herb

ASTERACEAE

Helianthus californicus
© 2021 Mike Russler
Helianthus californicus
© 2020 David Greenberger
Helianthus californicus
© 2021 Mike Russler

Heliotropium curassavicum    Chinese parsley,  Heliotrope,  Salt heliotrope
native
Perennial herb

HELIOTROPIACEAE

Heliotropium curassavicum
© 2019 Aaron Echols
Heliotropium curassavicum
© 2021 Mary Wloch
Heliotropium curassavicum
© 2019 Wyatt Dooley

Hemizonia congesta ssp. luzulifolia    Hayfield tarweed,  Woodrush tarweed
native
Annual herb

ASTERACEAE

Hemizonia congesta ssp. luzulifolia
© 2013 Arcangelo Wessells
Hemizonia congesta ssp. luzulifolia
© 2022 R.A. Chasey
Hemizonia congesta ssp. luzulifolia
© 2022 R.A. Chasey

Hemizonia fitchii    Spikeweed
native
Annual herb

ASTERACEAE

Hemizonia fitchii
© 2015 Steve Matson
Hemizonia fitchii
© 2019 Julie Kierstead Nelson
Hemizonia fitchii
© 2021 Mike Russler

Hemizonia kelloggii    Kellogg's tarweed
native
Annual herb

ASTERACEAE

Hemizonia kelloggii
© 2023 R.A. Chasey
Hemizonia kelloggii
© 2024 Mike Russler
Hemizonia kelloggii
© 2024 Mike Russler

Hemizonia luzulaefolia ssp. rudis    Hayfield tarweed,  Woodrush tarweed
native
Annual herb

ASTERACEAE

Hemizonia luzulaefolia ssp. rudis
© 2013 Arcangelo Wessells
Hemizonia luzulaefolia ssp. rudis
© 2022 R.A. Chasey
Hemizonia luzulaefolia ssp. rudis
© 2022 R.A. Chasey

Herniaria cinerea    Herniaria
non-native
Annual herb

CARYOPHYLLACEAE

Herniaria cinerea
© 2016 Michael Mitchell
Herniaria cinerea
© 2016 Michael Mitchell
Herniaria cinerea
© 2016 Michael Mitchell

non-native
Annual herb

CARYOPHYLLACEAE

Herniaria hirsuta ssp. cinerea
© 2016 Michael Mitchell
Herniaria hirsuta ssp. cinerea
© 2016 Michael Mitchell
Herniaria hirsuta ssp. cinerea
© 2016 Michael Mitchell

Hesperevax acaulis var. acaulis    Dwarf evax,  Stemless dwarf cudweed
native
Annual herb

ASTERACEAE

Hesperevax acaulis var. acaulis
© 2022 joaquin hale
Hesperevax acaulis var. acaulis
© 2022 joaquin hale
Hesperevax acaulis var. acaulis
© 2022 joaquin hale

Hesperevax sparsiflora var. sparsiflora    Erect dwarf cudweed,  Few flowered evax
native
Annual herb

ASTERACEAE

Hesperevax sparsiflora var. sparsiflora
© 2020 Stacie Wolny
Hesperevax sparsiflora var. sparsiflora
© 2020 R.A. Chasey
Hesperevax sparsiflora var. sparsiflora
© 2022 R.A. Chasey

Hesperolinon disjunctum    Coast range dwarf flax,  Coast range western flax
native
Annual herb

LINACEAE

Hesperolinon disjunctum
© 2019 Steve Matson
Hesperolinon disjunctum
© 2019 Steve Matson
Hesperolinon disjunctum
© 2019 Steve Matson

Hesperolinon micranthum    Common dwarf flax,  Small flower western flax,  Small flowered dwarf flax
native
Annual herb

LINACEAE

Hesperolinon micranthum
© 2020 David Greenberger
Hesperolinon micranthum
© 2023 R.A. Chasey
Hesperolinon micranthum
© 2021 R.A. Chasey

Heterocodon rariflorum    Few flowered heterocodon,  Rareflower heterocodon,  Western pear flower
native
Annual herb

CAMPANULACEAE

Heterocodon rariflorum
© 2022 Steve Matson
Heterocodon rariflorum
© 2022 Steve Matson
Heterocodon rariflorum
© 2022 Steve Matson

Heteromeles arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

Heteromeles arbutifolia
© 2015 James Gonsman
Heteromeles arbutifolia
© 2017 Gary McDonald
Heteromeles arbutifolia
© 2017 Gary McDonald

Heterotheca oregona var. scaberrima    Oregon false goldenaster,  Rough oregon goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca oregona var. scaberrima
© 2017 Ken-ichi Ueda
Heterotheca oregona var. scaberrima
© 2017 Christopher Hauser
Heterotheca oregona var. scaberrima
© 2014 Richard Spellenberg

Heterotheca sessiliflora ssp. echioides    Bristly goldenaster,  Sessileflower false goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca sessiliflora ssp. echioides
© 2021 Mike Russler
Heterotheca sessiliflora ssp. echioides
© 2021 Mike Russler
Heterotheca sessiliflora ssp. echioides
© 2018 Ron Vanderhoff

Hirschfeldia incana    Mediterranean hoary mustard,  Short podded mustard,  Summer mustard
invasive non-native
Perennial herb

BRASSICACEAE

Hirschfeldia incana
© 2017 Gary McDonald
Hirschfeldia incana
© 2017 Gary McDonald
Hirschfeldia incana
© 2022 Ron Vanderhoff

Hoita macrostachya    California hemp,  Large leather root
native
Perennial herb

FABACEAE

Hoita macrostachya
© 2020 Ron Vanderhoff
Hoita macrostachya
© 2022 Natalie McNear
Hoita macrostachya
© 2021 Julie King

Hoita orbicularis    Creeping leather root,  Round leaved psoralea,  Roundleaf leather root
native
Perennial herb

FABACEAE

Hoita orbicularis
© 2015 Tim Miller
Hoita orbicularis
© 2018 Hunter Breck
Hoita orbicularis
© 2019 Shane Hanofee

Holcus lanatus    Common velvetgrass,  Velvet grass,  Velvetgrass
invasive non-native
Perennial grass

POACEAE

Holcus lanatus
© 2019 Bill Haley
Holcus lanatus
© 2019 Bill Haley
Holcus lanatus
© 2019 Bill Haley

Holocarpha heermannii    Heermann's tarweed
native
Annual herb

ASTERACEAE

Holocarpha heermannii
© 2018 Richard Spjut
Holocarpha heermannii
© 2022 Cynthia Powell
Holocarpha heermannii
© 2022 Cynthia Powell

Holocarpha virgata    Narrow tarplant,  Pitgland tarweed,  Yellowflower tarweed
native
Annual herb

ASTERACEAE

Holocarpha virgata
© 2019 Steve Matson
Holocarpha virgata
© 2019 Steve Matson
Holocarpha virgata
© 2019 stephen rosenthal

Holodiscus discolor    Cream bush,  Ocean spray,  Oceanspray
native
Shrub

ROSACEAE

Holodiscus discolor
© 2017 Steve Matson
Holodiscus discolor
© 2017 Steve Matson
Holodiscus discolor
© 2022 Steve Matson

Holozonia filipes    Greene's white crown,  Holozonia,  Whitecrown
native
Perennial herb

ASTERACEAE

Holozonia filipes
© 2015 Steve Matson
Holozonia filipes
© 2022 R.A. Chasey
Holozonia filipes
© 2023 R.A. Chasey

native
Perennial grass

POACEAE

Hordeum brachyantherum ssp. brachyantherum
© 2015 Steve Matson
Hordeum brachyantherum ssp. brachyantherum
© 2015 Steve Matson
Hordeum brachyantherum ssp. brachyantherum
© 2015 Steve Matson

Hordeum brachyantherum ssp. californicum    California barley,  California meadow barley
native
Perennial grass

POACEAE

Hordeum brachyantherum ssp. californicum
© 2011 Steve Matson
Hordeum brachyantherum ssp. californicum
© 2011 Steve Matson
Hordeum brachyantherum ssp. californicum
© 2011 Steve Matson

Hordeum californicum    California barley,  California meadow barley
native
Perennial grass

POACEAE

Hordeum californicum
© 2011 Steve Matson
Hordeum californicum
© 2011 Steve Matson
Hordeum californicum
© 2011 Steve Matson

Hordeum depressum    Alkali barley,  Dwarf barley,  Low barley
native
Annual grass

POACEAE

Hordeum depressum
© 2017 Steve Matson
Hordeum depressum
© 2017 Steve Matson
Hordeum depressum
© 2024 Denise Defreese

Hordeum geniculatum    Barley,  Mediterranean barley
non-native
Annual grass

POACEAE

Hordeum geniculatum
© 2018 Carolyn
Hordeum geniculatum
© 2020 Paul Aigner
Hordeum geniculatum
© 2017 Toni Corelli

Hordeum leporinum    Farmer's foxtail,  Foxtail barley,  Hare barley
non-native
Annual grass

POACEAE

Hordeum leporinum
© 2022 Ron Vanderhoff
Hordeum leporinum
© 2021 Al Keuter
Hordeum leporinum
© 2021 Ron Vanderhoff

Hordeum marinum ssp. gussoneanum    Barley,  Mediterranean barley
non-native
Annual grass

POACEAE

Hordeum marinum ssp. gussoneanum
© 2018 Carolyn
Hordeum marinum ssp. gussoneanum
© 2020 Paul Aigner
Hordeum marinum ssp. gussoneanum
© 2017 Toni Corelli

Hordeum murinum ssp. leporinum    Farmer's foxtail,  Foxtail barley,  Hare barley
non-native
Annual grass

POACEAE

Hordeum murinum ssp. leporinum
© 2022 Ron Vanderhoff
Hordeum murinum ssp. leporinum
© 2021 Al Keuter
Hordeum murinum ssp. leporinum
© 2021 Ron Vanderhoff

Hypericum anagalloides    Creeping st. john's wort,  Tinker's penny
native
Annual, Perennial herb

HYPERICACEAE

Hypericum anagalloides
© 2019 Bob Sweatt
Hypericum anagalloides
© 2020 Joaquin Hale
Hypericum anagalloides
© 2021 Mike Russler

Hypochaeris glabra    Smooth cat's ear
invasive non-native
Annual herb

ASTERACEAE

Hypochaeris glabra
© 2020 Ron Vanderhoff
Hypochaeris glabra
© 2017 Gary McDonald
Hypochaeris glabra
© 2019 Ron Vanderhoff

Idahoa scapigera    Oldstem idahoa
native
Annual herb

BRASSICACEAE

Idahoa scapigera
© 2021 David popp
Idahoa scapigera
© 2010 Norman Jensen
Idahoa scapigera
© 2006 Keir Morse

Iris macrosiphon    Bowltube iris,  Ground iris,  Long tubed iris
native
Perennial herb

IRIDACEAE

Iris macrosiphon
© 2017 Steve Matson
Iris macrosiphon
© 2019 Steve Matson
Iris macrosiphon
© 2019 Steve Matson

Isoetes howellii    Howell's quillwort,  Quillwort
native

ISOETACEAE

Isoetes howellii
© 2022 Ken-ichi Ueda
Isoetes howellii
© 2022 Ken-ichi Ueda
Isoetes howellii
© 2023 R.A. Chasey

Isopyrum occidentale    WESTERN RUE-ANEMONE,  Western false rue anemone
native
Perennial herb

RANUNCULACEAE

Isopyrum occidentale
© 2017 Steve Matson
Isopyrum occidentale
© 2017 Steve Matson
Isopyrum occidentale
© 2004 Steve Matson

Isopyrum stipitatum    Siskiyou false rue anemone
native
Perennial herb

RANUNCULACEAE

Isopyrum stipitatum
© 2021 Steve Laymon
Isopyrum stipitatum
© 2020 Steve Laymon
Isopyrum stipitatum
© 2024 Dana York

Juglans californica var. hindsii    Northern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans californica var. hindsii
© 2018 Ron Vanderhoff
Juglans californica var. hindsii
© 2016 Steve Matson
Juglans californica var. hindsii
© 2018 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 balticus    Baltic rush,  Wire rush
native
Perennial grasslike herb

JUNCACEAE

Juncus balticus
© 2015 Steve Matson
Juncus balticus
© 2015 Steve Matson
Juncus balticus
© 2019 Bonnie Nickel

Juncus bufonius    Common toad rush,  Toad rush
native
Annual grasslike herb

JUNCACEAE

Juncus bufonius
© 2022 Steve Matson
Juncus bufonius
© 2022 Steve Matson
Juncus bufonius
© 2022 Steve Matson

Juncus effusus var. pacificus    Pacific rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus var. pacificus
© 2009 Toni Corelli
Juncus effusus var. pacificus
© 2021 R.A. Chasey
Juncus effusus var. pacificus
© 2021 John Rawlings

Juncus xiphioides    Iris leaved rush,  Irisleaf rush
native
Perennial grasslike herb

JUNCACEAE

Juncus xiphioides
© 2016 Erik Larsen
Juncus xiphioides
© 2017 Ron Vanderhoff
Juncus xiphioides
© 2023 R.A. Chasey

Juniperus californica    California juniper
native
Shrub

CUPRESSACEAE

Juniperus californica
© 2019 Patrick Furtado
Juniperus californica
© 2017 Gary McDonald
Juniperus californica
© 2014 Ron Vanderhoff

Keckiella breviflora    Bush beardtongue,  Gaping keckiella
native
Shrub

PLANTAGINACEAE

Keckiella breviflora
© 2012 Steve Matson
Keckiella breviflora
© 2019 Ramona Robison
Keckiella breviflora
© 2023 Karen Swift

Keckiella corymbosa    Red beardtongue,  Redwood keckiella
native
Shrub

PLANTAGINACEAE

Keckiella corymbosa
© 2021 Mary Ann Machi
Keckiella corymbosa
© 2019 David Greenberger
Keckiella corymbosa
© 2022 Ryan O'Dell

Kickxia elatine    Sharp leaved fluellin,  Sharp point fluellin,  Sharpleaf cancerwort
non-native
Perennial herb

PLANTAGINACEAE

Kickxia elatine
© 2023 John Malpas
Kickxia elatine
© 2018 Ron Vanderhoff
Kickxia elatine
© 2016 Barbara Boethling

Koeleria cristata    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria cristata
© 2015 Steve Matson
Koeleria cristata
© 2015 Steve Matson
Koeleria cristata
© 2015 Steve Matson

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
© 2015 Steve Matson
Koeleria macrantha
© 2015 Steve Matson
Koeleria macrantha
© 2015 Steve Matson

Kohlrauschia velutina    Hairypink,  Pink grass,  Wilding pink
non-native
Annual herb

CARYOPHYLLACEAE

Kohlrauschia velutina
© 2016 Bill Thiessen
Kohlrauschia velutina
© 2019 Joe Engelbrecht
Kohlrauschia velutina
© 2016 Andrew Longman

Lactuca saligna    Narrow leaved wild lettuce,  Willow lettuce,  Willowleaf lettuce
non-native
Annual herb

ASTERACEAE

Lactuca saligna
© 2021 Don Hollander
Lactuca saligna
© 2019 Stacie Wolny
Lactuca saligna
© 2021 Don Hollander

Lactuca serriola    Prickly lettuce,  Prickly wild lettuce
invasive non-native
Annual herb

ASTERACEAE

Lactuca serriola
© 2017 Gary McDonald
Lactuca serriola
© 2017 Gary McDonald
Lactuca serriola
© 2017 Gary McDonald

Lagophylla ramosissima    Branched lagophylla,  Common hareleaf
native
Annual herb

ASTERACEAE

Lagophylla ramosissima
© 2019 Diane Etchison
Lagophylla ramosissima
© 2021 Dee Shea Himes
Lagophylla ramosissima
© 2020 Ken Hickman

Lamarckia aurea    Goldentop grass
non-native
Annual grass

POACEAE

Lamarckia aurea
© 2017 B.J. Dion
Lamarckia aurea
© 2019 Ron Vanderhoff
Lamarckia aurea
© 2015 James Gonsman

Lamium amplexicaule    Giraffe head,  Henbit deadnettle
non-native
Annual herb

LAMIACEAE

Lamium amplexicaule
© 2005 Steve Matson
Lamium amplexicaule
© 2005 Steve Matson
Lamium amplexicaule
© 2021 Mike Russler

Lasthenia californica    California goldfields,  Common goldfields,  Valley goldfields
native
Annual herb

ASTERACEAE

Lasthenia californica
© 2017 David Greenberger
Lasthenia californica
© 2020 Susan White
Lasthenia californica
© 2017 MCOSD EDRR

Lasthenia chrysostoma    California goldfields
native
Annual herb

ASTERACEAE

Lasthenia chrysostoma
© 2021 Charles Russell
Lasthenia chrysostoma
© 2022 Steve Matson
Lasthenia chrysostoma
© 2015 Toni Corelli

Lasthenia glabrata    Yellow rayed goldfields,  Yellow rayed lasthenia,  Yellowray goldfields
native
Annual herb

ASTERACEAE

Lasthenia glabrata
© 2022 Morgan Stickrod
Lasthenia glabrata
© 2020 Aaron Echols
Lasthenia glabrata
© 2023 Ron Vanderhoff

Lathyrus jepsonii var. californicus    California tule pea
native
Perennial herb

FABACEAE

Lathyrus jepsonii var. californicus
© 2020 R.A. Chasey
Lathyrus jepsonii var. californicus
© 2019 Esther Cole
Lathyrus jepsonii var. californicus
© 2020 R.A. Chasey

Lathyrus latifolius    Everlasting pea,  Perennial pea,  Perennial sweet pea
non-native
Perennial herb

FABACEAE

Lathyrus latifolius
© 2020 Jutta Burger
Lathyrus latifolius
© 2019 Cynthia Powell
Lathyrus latifolius
© 2021 Sherry Adams

Lathyrus vestitus    Bolander's pea,  Common pacific pea,  Pacific peavine
native
Perennial herb

FABACEAE

Lathyrus vestitus
© 2018 Stacie Wolny
Lathyrus vestitus
© 2019 Ron Vanderhoff
Lathyrus vestitus
© 2019 Steve Conger

Lathyrus watsonii    California tule pea
native
Perennial herb

FABACEAE

Lathyrus watsonii
© 2020 R.A. Chasey
Lathyrus watsonii
© 2019 Esther Cole
Lathyrus watsonii
© 2020 R.A. Chasey

Layia gaillardioides    Woodland layia,  Woodland tidytips
native
Annual herb

ASTERACEAE

Layia gaillardioides
© 2021 R.A. Chasey
Layia gaillardioides
© 2022 John Rawlings
Layia gaillardioides
© 2019 John Rawlings

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

Layia platyglossa
© 2015 Amy Rapport
Layia platyglossa
© 2019 Jenna T. B. Ekwealor
Layia platyglossa
© 2017 Chris Mo

Lepidium draba    Whitetop
invasive non-native
Perennial herb

BRASSICACEAE

Lepidium draba
© 2020 Ron Vanderhoff
Lepidium draba
© 2021 Mike Russler
Lepidium draba
© 2020 Ron Vanderhoff

Lepidium nitidum    Peppergrass,  Shining pepper grass,  Shining pepperweed
native
Annual herb

BRASSICACEAE

Lepidium nitidum
© 2021 Steve Matson
Lepidium nitidum
© 2016 Steve Matson
Lepidium nitidum
© 2021 Steve Matson

Lessingia filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Lessingia filaginifolia
© 2022 Mike Russler
Lessingia filaginifolia
© 2018 Ron Vanderhoff
Lessingia filaginifolia
© 2019 Diane Etchison

Lessingia germanorum var. parvula    Spring lessingia
rare native
Annual herb

ASTERACEAE

Lessingia germanorum var. parvula
© 2022 Mike Russler
Lessingia germanorum var. parvula
© 2022 Mike Russler
Lessingia germanorum var. parvula
© 2022 Mike Russler

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 ramulosa var. glabrata    Smooth lessingia
rare native
Annual herb

ASTERACEAE

Lessingia ramulosa var. glabrata
© 2019 Ken Hickman
Lessingia ramulosa var. glabrata
© 2020 R.A. Chasey
Lessingia ramulosa var. glabrata
© 2019 Julia King

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 rediviva    Bitter root
native
Perennial herb

MONTIACEAE

Lewisia rediviva
© 2020 Matt Berger
Lewisia rediviva
© 2023 Steve Conger
Lewisia rediviva
© 2018 Mitchell Coleman

Limnanthes douglasii    Common meadowfoam,  Douglas' meadowfoam
native
Annual herb

LIMNANTHACEAE

Limnanthes douglasii
© 2021 Alaine Arslan
Limnanthes douglasii
© 2021 Jamie Spielmann
Limnanthes douglasii
© 2021 Suzanne L. Weakley

Limosella acaulis    Broad leaved mudwort,  Owyhee mudwort,  Southern mudwort
native
Annual herb

SCROPHULARIACEAE

Limosella acaulis
© 2020 Steve Matson
Limosella acaulis
© 2020 Steve Matson
Limosella acaulis
© 2021 R.A. Chasey

Linanthus ambiguus    Serpentine leptosiphon
rare native
Annual herb

POLEMONIACEAE

Linanthus ambiguus
© 2024 Steve Matson
Linanthus ambiguus
© 2024 Steve Matson
Linanthus ambiguus
© 2024 Steve Matson

Linanthus androsaceus    False babystars
native
Annual herb

POLEMONIACEAE

Linanthus androsaceus
© 2010 Jeffrey Hapeman
Linanthus androsaceus
© 2020 R.A. Chasey
Linanthus androsaceus
© 2014 James Gonsman

Linanthus androsaceus ssp. luteus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Linanthus androsaceus ssp. luteus
© 2008 Keir Morse
Linanthus androsaceus ssp. luteus
© 2008 Keir Morse
Linanthus androsaceus ssp. luteus
© 2008 Keir Morse

Linanthus bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Linanthus bicolor
© 2008 Steve Matson
Linanthus bicolor
© 2008 Steve Matson
Linanthus bicolor
© 2008 Steve Matson

Linanthus ciliatus    Whiskerbrush
native
Annual herb

POLEMONIACEAE

Linanthus ciliatus
© 2020 Bob Sweatt
Linanthus ciliatus
© 2020 Bob Sweatt
Linanthus ciliatus
© 2018 Glenn Fine

Linanthus dichotomus    Evening snow,  Eveningsnow
native
Annual herb

POLEMONIACEAE

Linanthus dichotomus
© 2019 Jacob Smith
Linanthus dichotomus
© 2019 Jacob Smith
Linanthus dichotomus
© 2019 Jacob Smith

Linanthus grandiflorus    Large flowered leptosiphon
rare native
Annual herb

POLEMONIACEAE

Linanthus grandiflorus
© 2023 Suzanne L. Weakley
Linanthus grandiflorus
© 2017 David Greenberger
Linanthus grandiflorus
© 2022 Ron Vanderhoff

Linanthus liniflorus    Narrowflower flaxflower
native
Annual herb

POLEMONIACEAE

Linanthus liniflorus
© 2017 Aaron Echols
Linanthus liniflorus
© 2022 Ron Vanderhoff
Linanthus liniflorus
© 2023 Diana Wahl

Linanthus parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Linanthus parviflorus
© 2008 Keir Morse
Linanthus parviflorus
© 2008 Keir Morse
Linanthus parviflorus
© 2008 Keir Morse

native
Annual herb

POLEMONIACEAE

Linanthus pygmaeus ssp. continentalis
© 2019 Steve Matson
Linanthus pygmaeus ssp. continentalis
© 2019 Steve Matson
Linanthus pygmaeus ssp. continentalis
© 2019 Steve Matson

Linaria canadensis    Canada toadflax
native
Annual, Biennial herb

PLANTAGINACEAE

Linaria canadensis
© 2016 Keir Morse
Linaria canadensis
© 2019 Mary Conway
Linaria canadensis
© 2019 Mary Conway

Lippia nodiflora var. rosea    Common lippia,  Lippia,  Turkey tangle frogfruit
native
Perennial herb

VERBENACEAE

Lippia nodiflora var. rosea
© 2018 Ron Vanderhoff
Lippia nodiflora var. rosea
© 2009 Ron Vanderhoff
Lippia nodiflora var. rosea
© 2022 Donald Burk

Lithophragma affine    Common woodland star,  San francisco woodland star,  Woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma affine
© 2018 Steve Matson
Lithophragma affine
© 2018 Steve Matson
Lithophragma affine
© 2018 Steve Matson

Lithophragma heterophyllum    Hill star,  Hillside woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma heterophyllum
© 2019 David Greenberger
Lithophragma heterophyllum
© 2019 David Magney
Lithophragma heterophyllum
© 2018 Ken Lunders

Lithophragma parviflorum    Pink woodland star,  Prairie star,  Smallflower woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma parviflorum
© 2019 Gary McDonald
Lithophragma parviflorum
© 2022 Catherine Chang
Lithophragma parviflorum
© 2019 Bob Sweatt

Lolium multiflorum    Italian rye grass
invasive non-native
Annual, Perennial grass

POACEAE

Lolium multiflorum
© 2019 Ron Vanderhoff
Lolium multiflorum
© 2017 Gary McDonald
Lolium multiflorum
© 2021 Ron Vanderhoff

Lolium perenne    Italian rye grass
invasive non-native
Annual, Perennial grass

POACEAE

Lolium perenne
© 2019 Ron Vanderhoff
Lolium perenne
© 2017 Gary McDonald
Lolium perenne
© 2021 Ron Vanderhoff

Lomatium californicum    California lomatium,  Celery weed
native
Perennial herb

APIACEAE

Lomatium californicum
© 2022 Richard Sullivan
Lomatium californicum
© 2021 Julie A. Kierstead
Lomatium californicum
© 2020 R.A. Chasey

Lomatium caruifolium    Alkali desertparsley,  Alkali parsnip,  Caraway leaved lomatium
native
Perennial herb

APIACEAE

Lomatium caruifolium
© 2014 Steve Matson
Lomatium caruifolium
© 2014 Steve Matson
Lomatium caruifolium
© 2023 R.A. Chasey

Lomatium dasycarpum    Hog fennel,  Lace parsnip,  Woolly fruited lomatium
native
Perennial herb

APIACEAE

Lomatium dasycarpum
© 2016 Steve Matson
Lomatium dasycarpum
© 2016 Steve Matson
Lomatium dasycarpum
© 2021 Paul Aigner

Lomatium macrocarpum    Bigseed biscuitroot,  Large fruited lomatium
native
Perennial herb

APIACEAE

Lomatium macrocarpum
© 2021 John Game
Lomatium macrocarpum
© 2023 R.A. Chasey
Lomatium macrocarpum
© 2023 R.A. Chasey

Lomatium nudicaule    Barestem biscuitroot,  Pestle lomatium,  Pestle parsnip
native
Perennial herb

APIACEAE

Lomatium nudicaule
© 2022 Steve Matson
Lomatium nudicaule
© 2020 Bob Sweatt
Lomatium nudicaule
© 2022 Helen Hancock

Lomatium utriculatum    Bladder parsnip,  Common lomatium,  Hog fennel
native
Perennial herb

APIACEAE

Lomatium utriculatum
© 2006 Steve Matson
Lomatium utriculatum
© 2006 Steve Matson
Lomatium utriculatum
© 2015 James Gonsman

Lonicera hispidula var. vacillans    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera hispidula var. vacillans
© 2022 Suzanne L. Weakley
Lonicera hispidula var. vacillans
© 2021 Cara Wilcox
Lonicera hispidula var. vacillans
© 2018 Diana Wahl

Lonicera interrupta    Chaparral honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera interrupta
© 2018 David Greenberger
Lonicera interrupta
© 2019 Julie Kierstead Nelson
Lonicera interrupta
© 2009 BOB CASE

Lonicera subspicata var. denudata    Chaparral honeysuckle,  Johnston's honeysuckle,  Santa barbara honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera subspicata var. denudata
© 2019 Diane Etchison
Lonicera subspicata var. denudata
© 2021 Ron Vanderhoff
Lonicera subspicata var. denudata
© 2021 Ron Vanderhoff

Lonicera subspicata var. johnstonii    Chaparral honeysuckle,  Johnston's honeysuckle,  Santa barbara honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera subspicata var. johnstonii
© 2019 Diane Etchison
Lonicera subspicata var. johnstonii
© 2021 Ron Vanderhoff
Lonicera subspicata var. johnstonii
© 2021 Ron Vanderhoff

Lotus corniculatus    Bird's foot trefoil,  Birdfoot deervetch,  Broadleaf birdsfoot trefoil
invasive non-native
Perennial herb

FABACEAE

Lotus corniculatus
© 2005 Steve Matson
Lotus corniculatus
© 2014 Steve Matson
Lotus corniculatus
© 2014 Steve Matson

Lotus crassifolius    Broad leaved lotus
native
Perennial herb

FABACEAE

Lotus crassifolius
© 2015 Steve Matson
Lotus crassifolius
© 2015 Steve Matson
Lotus crassifolius
© 2015 Steve Matson

Lotus humistratus    hill lotus
native
Annual herb

FABACEAE

Lotus humistratus
© 2005 Steve Matson
Lotus humistratus
© 2005 Steve Matson
Lotus humistratus
© 2018 Steve Matson

Lotus micranthus    Hill lotus
native
Annual herb

FABACEAE

Lotus micranthus
© 2008 Steve Matson
Lotus micranthus
© 2005 Steve Matson
Lotus micranthus
© 2008 Steve Matson

Lotus purshianus    American bird's foot trefoil,  Spanish lotus
native
Annual herb

FABACEAE

Lotus purshianus
© 2019 Rachelle Gray
Lotus purshianus
© 2013 Arcangelo Wessells
Lotus purshianus
© 2020 Bob Sweatt

Lotus salsuginosus    Coastal lotus
native
Annual herb

FABACEAE

Lotus salsuginosus
© 2019 Diane Etchison
Lotus salsuginosus
© 2023 Ron Vanderhoff
Lotus salsuginosus
© 2020 Mary Conway

Lotus scoparius    Deerweed
native
Perennial herb

FABACEAE

Lotus scoparius
© 2021 Ron Vanderhoff
Lotus scoparius
© 2019 Diane Etchison
Lotus scoparius
© 2020 Ron Vanderhoff

Lotus strigosus    Strigose lotus
native
Annual herb

FABACEAE

Lotus strigosus
© 2016 Steve Matson
Lotus strigosus
© 2009 Steve Matson
Lotus strigosus
© 2016 Steve Matson

Lotus subpinnatus    Wrangel lotus
native
Annual herb

FABACEAE

Lotus subpinnatus
© 2016 Steve Matson
Lotus subpinnatus
© 2016 Steve Matson
Lotus subpinnatus
© 2016 Steve Matson

Lotus wrangelianus    Wrangel lotus
native
Annual herb

FABACEAE

Lotus wrangelianus
© 2016 Steve Matson
Lotus wrangelianus
© 2016 Steve Matson
Lotus wrangelianus
© 2016 Steve Matson

Lupinus albifrons var. albifrons    Silver bush lupine,  Silver lupine
native
Shrub

FABACEAE

Lupinus albifrons var. albifrons
© 2012 Michael Mitchell
Lupinus albifrons var. albifrons
© 2020 Richard Spjut
Lupinus albifrons var. albifrons
© 2020 Susan McDougall

Lupinus albifrons var. collinus    Silver bush lupine,  Silver lupine,  low growing silver lupine
native
Shrub

FABACEAE

Lupinus albifrons var. collinus
© 2020 Hunter Breck
Lupinus albifrons var. collinus
© 2021 Steve Matson
Lupinus albifrons var. collinus
© 2016 Steve Matson

Lupinus bicolor    Annual lupine,  Bicolored lupine,  Miniature lupine
native
Annual, Perennial herb

FABACEAE

Lupinus bicolor
© 2024 Mary Ann Machi
Lupinus bicolor
© 2022 Mike Russler
Lupinus bicolor
© 2024 Mary Ann Machi

Lupinus densiflorus    Chick lupine,  Dense flowered platycarpos,  Whitewhorl lupine
native
Annual herb

FABACEAE

Lupinus densiflorus
© 2014 Steve Matson
Lupinus densiflorus
© 2014 Steve Matson
Lupinus densiflorus
© 2014 Steve Matson

Lupinus latifolius    Bigleaf lupine,  Broad leaf lupine,  Broadleaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius
© 2017 Steve Matson
Lupinus latifolius
© 2017 Steve Matson
Lupinus latifolius
© 2008 Steve Matson

Lupinus microcarpus var. densiflorus    Chick lupine,  Dense flowered platycarpos,  Whitewhorl lupine
native
Annual herb

FABACEAE

Lupinus microcarpus var. densiflorus
© 2014 Steve Matson
Lupinus microcarpus var. densiflorus
© 2014 Steve Matson
Lupinus microcarpus var. densiflorus
© 2014 Steve Matson

Lupinus microcarpus var. microcarpus    Chick lupine,  Valley lupine
native
Annual herb

FABACEAE

Lupinus microcarpus var. microcarpus
© 2006 Steve Matson
Lupinus microcarpus var. microcarpus
© 2006 Steve Matson
Lupinus microcarpus var. microcarpus
© 2006 Steve Matson

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
© 2016 Steve Matson
Lupinus nanus
© 2016 Steve Matson
Lupinus nanus
© 2016 Steve Matson

Lupinus subvexus    Chick lupine,  Valley lupine
native
Annual herb

FABACEAE

Lupinus subvexus
© 2006 Steve Matson
Lupinus subvexus
© 2006 Steve Matson
Lupinus subvexus
© 2006 Steve Matson

Lupinus succulentus    Arroyo lupine,  Hollowleaf annual lupine,  Succulent lupine
native
Annual herb

FABACEAE

Lupinus succulentus
© 2023 Andy Ford
Lupinus succulentus
© 2018 Stacie Wolny
Lupinus succulentus
© 2018 Stacie Wolny

Luzula comosa    Common wood rush,  Hairy wood rush,  Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula comosa
© 2019 Matt Berger
Luzula comosa
© 2021 Steve Matson
Luzula comosa
© 2021 Steve Matson

Luzula subsessilis    Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula subsessilis
© 2024 John Rawlings
Luzula subsessilis
© 2021 David popp
Luzula subsessilis
© 2021 David popp

Lythrum californicum    California loosestrife,  Common loosestrife
native
Perennial herb

LYTHRACEAE

Lythrum californicum
© 2017 Fred Melgert / Carla Hoegen
Lythrum californicum
© 2024 Ken-ichi Ueda
Lythrum californicum
© 2023 Ryan O'Dell

Lythrum hyssopifolia    Hyssop loosestrife
invasive non-native
Annual, Perennial herb

LYTHRACEAE

Lythrum hyssopifolia
© 2019 Diane Etchison
Lythrum hyssopifolia
© 2021 Cynthia Powell
Lythrum hyssopifolia
© 2020 Ron Vanderhoff

Madia elegans    Common madia
native
Annual herb

ASTERACEAE

Madia elegans
© 2021 Jamie Spielmann
Madia elegans
© 2021 Mike Russler
Madia elegans
© 2020 Diane Etchison

Madia exigua    Little tarweed,  Meager tarweed,  Small tarweed
native
Annual herb

ASTERACEAE

Madia exigua
© 2023 Dianne Lake
Madia exigua
© 2023 Ron Vanderhoff
Madia exigua
© 2021 Helen Hancock

Madia gracilis    Grassy tarweed,  Gumweed madia,  Slender tarweed
native
Annual herb

ASTERACEAE

Madia gracilis
© 2022 Mike Russler
Madia gracilis
© 2021 Amber Bedgood
Madia gracilis
© 2019 Ron Vanderhoff

Mahonia pinnata    California barberry,  Coast barberry,  Shiny leaf mahonia
native
Shrub

BERBERIDACEAE

Mahonia pinnata
© 2021 Ron Vanderhoff
Mahonia pinnata
© 2022 Alice Cummings
Mahonia pinnata
© 2021 Ron Vanderhoff

Malacothamnus fasciculatus    Chaparral bushmallow,  Southern coastal bushmallow
native
Shrub

MALVACEAE

Malacothamnus fasciculatus
© 2020 Aaron Echols
Malacothamnus fasciculatus
© 2020 Ron Vanderhoff
Malacothamnus fasciculatus
© 2017 David Magney

Malacothrix floccifera    Woolly dandelion,  Woolly desertdandelion,  Woolly malacothrix
native
Annual herb

ASTERACEAE

Malacothrix floccifera
© 2019 David Greenberger
Malacothrix floccifera
© 2020 David Greenberger
Malacothrix floccifera
© 2020 Kevin Janicki

Malus pumila    Paradise apple
non-native
Tree

ROSACEAE

Malus pumila
© 2014 Ramona Robison
Malus pumila
© 2018 Angelique Herman
Malus pumila
© 2005 Louis-M. Landry

Malus sylvestris    Paradise apple
non-native
Tree

ROSACEAE

Malus sylvestris
© 2014 Ramona Robison
Malus sylvestris
© 2018 Angelique Herman
Malus sylvestris
© 2005 Louis-M. Landry

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

Malva nicaeensis
© 2023 Ron Vanderhoff
Malva nicaeensis
© 2020 Ron Vanderhoff
Malva nicaeensis
© 2020 Ron Vanderhoff

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

Malva parviflora
© 2022 Mike Russler
Malva parviflora
© 2022 Donald Burk
Malva parviflora
© 2022 Mike Russler

Malvella leprosa    Alkali mallow
native
Perennial herb

MALVACEAE

Malvella leprosa
© 2023 Donald Burk
Malvella leprosa
© 2019 Bonnie Nickel
Malvella leprosa
© 2019 Bonnie Nickel

Marah fabaceus    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah fabaceus
© 2018 Gary McDonald
Marah fabaceus
© 2018 MCOSD EDRR
Marah fabaceus
© 2021 Cyril Guyot

Marrubium vulgare    White horehound
invasive non-native
Perennial herb

LAMIACEAE

Marrubium vulgare
© ©2013 Gary McDonald
Marrubium vulgare
© 2015 Diane Etchison
Marrubium vulgare
© 2018 Nancy Hamlett

Marsilea vestita    Hairy waterclover
native
Fern

MARSILEACEAE

Marsilea vestita
© 2020 Ron Vanderhoff
Marsilea vestita
© 2020 Ken Hickman
Marsilea vestita
© 2020 Ron Vanderhoff

Matricaria matricarioides    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria matricarioides
© 2008 Steve Matson
Matricaria matricarioides
© 2008 Steve Matson
Matricaria matricarioides
© 2018 Stacie Wolny

Meconella denticulata    Small flowered meconella,  Smallflower fairypoppy
native
Annual herb

PAPAVERACEAE

Meconella denticulata
© 2019 Ron Vanderhoff
Meconella denticulata
© 2019 Ron Vanderhoff
Meconella denticulata
© 2012 Ron Vanderhoff

Medicago lupulina    Black medick
non-native
Annual, Perennial herb

FABACEAE

Medicago lupulina
© 2020 Ron Vanderhoff
Medicago lupulina
© 2020 Ron Vanderhoff
Medicago lupulina
© 2020 Ron Vanderhoff

Medicago polymorpha    Bur clover,  Bur medic,  California burclover
invasive non-native
Annual herb

FABACEAE

Medicago polymorpha
© 2019 Gary McDonald
Medicago polymorpha
© 2019 Gary McDonald
Medicago polymorpha
© 2019 Gary McDonald

Melica californica    California melicgrass
native
Perennial grass

POACEAE

Melica californica
© 2023 John Rawlings
Melica californica
© 2021 John Rawlings
Melica californica
© 2022 John Rawlings

Melica imperfecta    California melic,  Coast range melic,  Small flowered melica
native
Perennial grass

POACEAE

Melica imperfecta
© 2020 Ron Vanderhoff
Melica imperfecta
© 2021 Ron Vanderhoff
Melica imperfecta
© 2020 Ron Vanderhoff

Melica torreyana    Torrey melic,  Torrey's melica,  Torrey's melicgrass
native
Perennial grass

POACEAE

Melica torreyana
© 2021 Toni Corelli
Melica torreyana
© 2019 John Rawlings
Melica torreyana
© 2017 MCOSD Restoration Crew

Melilotus indicus    Annual yellow sweetclover,  Sourclover
non-native
Annual herb

FABACEAE

Melilotus indicus
© 2019 Randy Huey
Melilotus indicus
© 2019 Randy Huey
Melilotus indicus
© 2017 Rosalie Benitez

Melissa officinalis    Bee balm,  Common balm,  Lemon balm
non-native
Perennial herb

LAMIACEAE

Melissa officinalis
© 2022 R.A. Chasey
Melissa officinalis
© 2021 R.A. Chasey
Melissa officinalis
© 2021 Cara Wilcox

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
© 2014 James Gonsman
Mentha pulegium
© 2022 R.A. Chasey
Mentha pulegium
© 2015 Chris Jaster

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
© 2022 Donald Burk
Mentha spicata
© 2022 Donald Burk
Mentha spicata
© 2023 Ron Vanderhoff

Mentzelia lindleyi    Lindley's blazing star,  Lindley's blazingstar
native
Annual herb

LOASACEAE

Mentzelia lindleyi
© 2020 Karen Swift
Mentzelia lindleyi
© 2021 Vivian Krug Cotton
Mentzelia lindleyi
© 2020 Joerg Lohse

Micropus californicus    Cotton top,  Micropus,  Q tips
native
Annual herb

ASTERACEAE

Micropus californicus
© 2006 Steve Matson
Micropus californicus
© 2006 Steve Matson
Micropus californicus
© 2021 Ron Vanderhoff

Microseris douglasii    Douglas' microseris,  Douglas' silverpuffs
native
Annual herb

ASTERACEAE

Microseris douglasii
© 2017 Steve Matson
Microseris douglasii
© 2017 Steve Matson
Microseris douglasii
© 2017 Steve Matson

Microseris elegans    Elegant silverpuffs
native
Annual herb

ASTERACEAE

Microseris elegans
© 2011 Zoya Akulova
Microseris elegans
© 2024 Dianne Lake
Microseris elegans
© 2024 Dianne Lake

Microseris heterocarpa    Grassland stebbinsoseris
native
Annual herb

ASTERACEAE

Microseris heterocarpa
© 2019 Ron Vanderhoff
Microseris heterocarpa
© 2019 Ron Vanderhoff
Microseris heterocarpa
© 2017 Diane Etchison

Microseris linearifolia    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

Microseris linearifolia
© 2019 Zack Abbey
Microseris linearifolia
© 2019 Ron Vanderhoff
Microseris linearifolia
© 2016 Ron Vanderhoff

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Microsteris gracilis
© 2003 Steve Matson
Microsteris gracilis
© 2016 Steve Matson
Microsteris gracilis
© 2003 Steve Matson

Mimetanthe pilosa    Snouted monkey flower
native
Annual herb

PHRYMACEAE

Mimetanthe pilosa
© 2017 Steve Matson
Mimetanthe pilosa
© 2019 Matt Berger
Mimetanthe pilosa
© 2017 Steve Matson

Mimulus aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2019 Gary McDonald

Mimulus bolanderi    Bolander's monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus bolanderi
© 2022 Mike Russler
Mimulus bolanderi
© 2022 Mike Russler
Mimulus bolanderi
© 2023 Mike Russler

Mimulus cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Mimulus cardinalis
© 2014 James Gonsman
Mimulus cardinalis
© 2023 Steve Conger
Mimulus cardinalis
© 2021 Mike Russler

Mimulus congdonii    Congdon's monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus congdonii
© 2024 Mike Russler
Mimulus congdonii
© 2006 Steve Matson
Mimulus congdonii
© 2024 Mike Russler

Mimulus douglasii    Purple mouse ears
native
Annual herb

PHRYMACEAE

Mimulus douglasii
© 2023 Timothy Boomer
Mimulus douglasii
© 2023 Timothy Boomer
Mimulus douglasii
© 2023 Timothy Boomer

Mimulus floribundus    Many flowered monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus floribundus
© 2021 Mike Russler
Mimulus floribundus
© 2019 Diane Etchison
Mimulus floribundus
© 2021 Mike Russler

Mimulus guttatus    Seep monkey flower,  Yellow monkey flower
native
Annual, Perennial herb (rhizomatous)

PHRYMACEAE

Mimulus guttatus
© 2019 Stacie Wolny
Mimulus guttatus
© 2015 James Gonsman
Mimulus guttatus
© 2019 Stacie Wolny

Mimulus pilosus    Snouted monkey flower
native
Annual herb

PHRYMACEAE

Mimulus pilosus
© 2017 Steve Matson
Mimulus pilosus
© 2019 Matt Berger
Mimulus pilosus
© 2017 Steve Matson

Minuartia californica    California Sandwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia californica
© 2021 Steve Matson
Minuartia californica
© 2021 Steve Matson
Minuartia californica
© 2021 David popp

Minuartia douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia douglasii
© 2022 Steve Matson
Minuartia douglasii
© 2019 Stacie Wolny
Minuartia douglasii
© 2021 R.A. Chasey

Monardella villosa    Coyote mint
native
Perennial herb

LAMIACEAE

Monardella villosa
© 2020 Mary Sue Ittner
Monardella villosa
© 2019 Patrick Furtado
Monardella villosa
© 2019 Patricia Ashe

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

Montia fontana    Annual water minerslettuce,  Water chickweed,  Water montia
native
Annual herb

MONTIACEAE

Montia fontana
© 2023 Alaine Arslan
Montia fontana
© 2023 Alaine Arslan
Montia fontana
© 2006 Steve Matson

Montia fontana ssp. amporitana    Annual water minerslettuce,  Water chickweed,  Water montia
native
Annual herb

MONTIACEAE

Montia fontana ssp. amporitana
© 2023 Alaine Arslan
Montia fontana ssp. amporitana
© 2023 Alaine Arslan
Montia fontana ssp. amporitana
© 2006 Steve Matson

Montia gypsophiloides    Gypsum spring beauty,  Gypsum springbeauty
native
Annual herb

MONTIACEAE

Montia gypsophiloides
© 2021 Miao Ling He
Montia gypsophiloides
© 2019 William Lundgren
Montia gypsophiloides
© 2023 R.A. Chasey

Montia perfoliata    Claytonia,  Miner's lettuce
native
Annual herb

MONTIACEAE

Montia perfoliata
© 2008 Steve Matson
Montia perfoliata
© 2008 Steve Matson
Montia perfoliata
© 2008 Steve Matson

Myriophyllum sibiricum    Shortspike watermilfoil,  Siberian milfoil,  Siberian water milfoil
native
Perennial herb (aquatic)

HALORAGACEAE

Myriophyllum sibiricum
© 2008 Steve Matson
Myriophyllum sibiricum
© 2008 Steve Matson
Myriophyllum sibiricum
© 2015 Steve Matson

Myriophyllum spicatum ssp. exalbescens    Shortspike watermilfoil,  Siberian milfoil,  Siberian water milfoil
native
Perennial herb (aquatic)

HALORAGACEAE

Myriophyllum spicatum ssp. exalbescens
© 2008 Steve Matson
Myriophyllum spicatum ssp. exalbescens
© 2008 Steve Matson
Myriophyllum spicatum ssp. exalbescens
© 2015 Steve Matson

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

Nasturtium officinale
© 2019 Patrick Furtado
Nasturtium officinale
© 2019 Diane Etchison
Nasturtium officinale
© 2012 Steve Matson

Navarretia atractyloides    Holly leaf navarretia,  Hollyleaf pincushionplant
native
Annual herb

POLEMONIACEAE

Navarretia atractyloides
© 2019 Diane Etchison
Navarretia atractyloides
© 2010 George Butterworth
Navarretia atractyloides
© 2019 Ken Hickman

Navarretia intertexta ssp. intertexta    Interwoven navarretia,  Needleleaf navarretia
native
Annual herb

POLEMONIACEAE

Navarretia intertexta ssp. intertexta
© 2019 David Greenberger
Navarretia intertexta ssp. intertexta
© 2019 Bob Sweatt
Navarretia intertexta ssp. intertexta
© 2022 Bob Sweatt

Navarretia mellita    Honeyscented pincushionplant,  Skunk navarretia
native
Annual herb

POLEMONIACEAE

Navarretia mellita
© 2019 Steve Matson
Navarretia mellita
© 2019 Steve Matson
Navarretia mellita
© 2019 Steve Matson

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

Navarretia squarrosa
© 2024 Mike Russler
Navarretia squarrosa
© 2019 Patrick Furtado
Navarretia squarrosa
© 2022 Suzanne L. Weakley

Nemophila menziesii ssp. atomaria    Baby blue eyes
native
Annual herb

HYDROPHYLLACEAE

Nemophila menziesii ssp. atomaria
© 2021 Steve Matson
Nemophila menziesii ssp. atomaria
© 2021 Steve Matson
Nemophila menziesii ssp. atomaria
© 2021 Steve Matson

Nemophila parviflora    Small flowered nemophila,  Smallflower nemophila
native
Annual herb

HYDROPHYLLACEAE

Nemophila parviflora
© 2022 Dana York
Nemophila parviflora
© 2022 John Rawlings
Nemophila parviflora
© 2022 Eric Koberle

Nicotiana acuminata var. multiflora    Many flowered tobacco,  Manyflower tobacco,  Tobacco
non-native
Annual herb

SOLANACEAE

Nicotiana acuminata var. multiflora
© 2023 Mike Russler
Nicotiana acuminata var. multiflora
© 2019 Michelle Karle
Nicotiana acuminata var. multiflora
© 2023 R.A. Chasey

Oemleria cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

Oemleria cerasiformis
© 2019 Margo Bors
Oemleria cerasiformis
© 2019 Stacie Wolny
Oemleria cerasiformis
© 2023 David Wolfson

Oenothera cruciata    Grassland suncup,  Lakebed sun cup
native
Annual herb

ONAGRACEAE

Oenothera cruciata
© 2022 Ryan O'Dell
Oenothera cruciata
© 2021 Ryan O'Dell
Oenothera cruciata
© 2022 Ryan O'Dell

Oenothera graciliflora    Hill sun cup
native
Annual herb

ONAGRACEAE

Oenothera graciliflora
© 2021 Charles Russell
Oenothera graciliflora
© 2010 Richard Spjut
Oenothera graciliflora
© 2016 Richard Spjut

Olea europaea    Olive
invasive non-native
Tree, Shrub

OLEACEAE

Olea europaea
© 2022 Donald Burk
Olea europaea
© 2021 Thomas Reyes
Olea europaea
© 2022 Ron Vanderhoff

native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche californica ssp. californica
© 2017 David Greenberger
Orobanche californica ssp. californica
© 2016 Andrea Pickart
Orobanche californica ssp. californica
© 2009 Toni Corelli

Orobanche californica ssp. jepsonii    Jepson's california broom rape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche californica ssp. jepsonii
© 2019 Ken Hickman
Orobanche californica ssp. jepsonii
© 2018 Brian and Eileen Keelan
Orobanche californica ssp. jepsonii
© 2019 Ken Hickman

Orobanche fasciculata    Clustered broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche fasciculata
© 2016 Jim Xerogeanes
Orobanche fasciculata
© 2016 Jim Xerogeanes
Orobanche fasciculata
© 2023 Mary Ann Machi

Orobanche grayana var. jepsonii    Jepson's california broom rape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche grayana var. jepsonii
© 2019 Ken Hickman
Orobanche grayana var. jepsonii
© 2018 Brian and Eileen Keelan
Orobanche grayana var. jepsonii
© 2019 Ken Hickman

Orobanche uniflora    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora
© 2022 Helen Hancock
Orobanche uniflora
© 2023 Katie O'Hara-Kelly
Orobanche uniflora
© 2022 Dana York

Orthocarpus attenuatus    Narrow leaved owl's clover,  Valley tassels
native
Annual herb

OROBANCHACEAE

Orthocarpus attenuatus
© 2024 Steve Conger
Orthocarpus attenuatus
© 2024 Mary Ann Machi
Orthocarpus attenuatus
© 2019 Timothy Boomer

Orthocarpus densiflorus    Dense flower owl's clover,  Denseflower indian paintbrush
native
Annual herb

OROBANCHACEAE

Orthocarpus densiflorus
© 2023 Caitlin Kreutz
Orthocarpus densiflorus
© 2019 David Greenberger
Orthocarpus densiflorus
© 2016 Andrew Longman

Orthocarpus purpurascens    Exserted indian paintbrush,  Pale purple owlclover,  Purple owl's clover
native
Annual herb

OROBANCHACEAE

Orthocarpus purpurascens
© 2020 David Greenberger
Orthocarpus purpurascens
© 2019 Ron Vanderhoff
Orthocarpus purpurascens
© 2023 Ron Vanderhoff

Oryzopsis miliacea    Smilo grass
non-native
Perennial grass

POACEAE

Oryzopsis miliacea
© 2021 Ron Vanderhoff
Oryzopsis miliacea
© 2020 Ron Vanderhoff
Oryzopsis miliacea
© 2022 Ron Vanderhoff

Osmaronia cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

Osmaronia cerasiformis
© 2019 Margo Bors
Osmaronia cerasiformis
© 2019 Stacie Wolny
Osmaronia cerasiformis
© 2023 David Wolfson

Osmorhiza brachypoda    California sweet cicely,  California sweetcicely
native
Perennial herb

APIACEAE

Osmorhiza brachypoda
© 2017 Aaron Echols
Osmorhiza brachypoda
© 2020 Ron Vanderhoff
Osmorhiza brachypoda
© 2022 Ron Vanderhoff

Osmorhiza chilensis    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza chilensis
© 2006 Steve Matson
Osmorhiza chilensis
© 2006 Steve Matson
Osmorhiza chilensis
© 2006 Steve Matson

Osmorhiza nuda    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza nuda
© 2006 Steve Matson
Osmorhiza nuda
© 2006 Steve Matson
Osmorhiza nuda
© 2006 Steve Matson

Parietaria floridana    Pelitory,  Pellitory,  Rillita pellitory
native
Annual herb

URTICACEAE

Parietaria floridana
© 2022 Matt Berger
Parietaria floridana
© 2019 Ron Vanderhoff
Parietaria floridana
© 2021 Ron Vanderhoff

Parietaria hespera    Pelitory,  Pellitory,  Rillita pellitory
native
Annual herb

URTICACEAE

Parietaria hespera
© 2022 Matt Berger
Parietaria hespera
© 2019 Ron Vanderhoff
Parietaria hespera
© 2021 Ron Vanderhoff

Paspalum dilatatum    Dallis grass,  Dallisgrass
non-native
Perennial grass

POACEAE

Paspalum dilatatum
© 2018 Ron Vanderhoff
Paspalum dilatatum
© 2017 Barbara Boethling
Paspalum dilatatum
© 2021 Ron Vanderhoff

Paspalum distichum    Knot grass,  Knotgrass
native
Perennial grass

POACEAE

Paspalum distichum
© 2011 Steve Matson
Paspalum distichum
© 2017 Ron Vanderhoff
Paspalum distichum
© 2017 Ron Vanderhoff

Pectocarya pusilla    Little gruvelia
native
Annual herb

BORAGINACEAE

Pectocarya pusilla
© 2022 Steve Matson
Pectocarya pusilla
© 2022 Steve Matson
Pectocarya pusilla
© 2022 Steve Matson

Pedicularis densiflora    Warrior's plume,  Indian warrior
native
Perennial herb

OROBANCHACEAE

Pedicularis densiflora
© 2015 Dee Warenycia
Pedicularis densiflora
© 2019 Jason Mills
Pedicularis densiflora
© 2017 Joshua Borkowski

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

Pellaea andromedifolia
© 2023 Steve Conger
Pellaea andromedifolia
© 2021 Steve Matson
Pellaea andromedifolia
© 2021 Mike Russler

Pellaea mucronata    Bird's foot fern,  Birdfoot cliffbrake,  Birdfoot fern
native
Fern

PTERIDACEAE

Pellaea mucronata
© 2012 Ron Vanderhoff
Pellaea mucronata
© 2022 Helen Hancock
Pellaea mucronata
© 2023 Julia Markey

Penstemon breviflorus    Gaping keckiella,  Gaping penstemon
native
Shrub

PLANTAGINACEAE

Penstemon breviflorus
© 2016 Steve Matson
Penstemon breviflorus
© 2016 Steve Matson
Penstemon breviflorus
© 2016 Steve Matson

Penstemon corymbosus    Red beardtongue,  Redwood keckiella
native
Shrub

PLANTAGINACEAE

Penstemon corymbosus
© 2021 Mary Ann Machi
Penstemon corymbosus
© 2019 David Greenberger
Penstemon corymbosus
© 2022 Ryan O'Dell

Penstemon grinnellii ssp. scrophularioides    Grinnell's beardtongue
native
Perennial herb

PLANTAGINACEAE

Penstemon grinnellii ssp. scrophularioides
© 2015 Judy and Barry Breckling
Penstemon grinnellii ssp. scrophularioides
© 2021 Dee Shea Himes
Penstemon grinnellii ssp. scrophularioides
© 2015 Judy and Barry Breckling

Penstemon heterophyllus    Bunchleaf penstemon,  Foothill penstemon
native
Perennial herb

PLANTAGINACEAE

Penstemon heterophyllus
© 2023 Ron Vanderhoff
Penstemon heterophyllus
© 2021 Charles Russell
Penstemon heterophyllus
© 2020 Diane Etchison

Pentachaeta exilis    Meager pygmydaisy,  Slender pentachaeta
native
Annual herb

ASTERACEAE

Pentachaeta exilis
© 2019 David Greenberger
Pentachaeta exilis
© 2022 Mike Russler
Pentachaeta exilis
© 2022 Mike Russler

Pentagramma triangularis    Gold back fern,  Goldenback fern
native
Fern

PTERIDACEAE

Pentagramma triangularis
© 2024 Steve Conger
Pentagramma triangularis
© 2022 Cynthia Powell
Pentagramma triangularis
© 2023 Julia Markey

Perideridia californica    California yampah
native
Perennial herb

APIACEAE

Perideridia californica
© 2018 Gary McDonald
Perideridia californica
© 2022 Helen Hancock
Perideridia californica
© 2013 Gary McDonald

Perideridia kelloggii    Kellogg's yampah,  Yampah
native
Perennial herb

APIACEAE

Perideridia kelloggii
© 2022 Suzanne L. Weakley
Perideridia kelloggii
© 2023 Ryan O'Dell
Perideridia kelloggii
© 2022 R.A. Chasey

Petrorhagia dubia    Hairypink,  Pink grass,  Wilding pink
non-native
Annual herb

CARYOPHYLLACEAE

Petrorhagia dubia
© 2016 Bill Thiessen
Petrorhagia dubia
© 2019 Joe Engelbrecht
Petrorhagia dubia
© 2016 Andrew Longman

Phacelia breweri    Brewer's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia breweri
© 2021 Helen Hancock
Phacelia breweri
© 2022 Helen Hancock
Phacelia breweri
© 2022 Helen Hancock

Phacelia cicutaria    Caterpillar phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia cicutaria
© 2019 Ron Vanderhoff
Phacelia cicutaria
© 2016 Julie Watson
Phacelia cicutaria
© 2014 Diane Etchison

Phacelia imbricata    Imbricate phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia imbricata
© 2019 Steve Matson
Phacelia imbricata
© 2019 Steve Matson
Phacelia imbricata
© 2019 Steve Matson

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 ramosissima    Branching phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia ramosissima
© 2005 Steve Matson
Phacelia ramosissima
© 2022 Rosalind Helfand
Phacelia ramosissima
© 2020 Ron Vanderhoff

Phacelia rattanii    Rattan's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia rattanii
© 2022 Dee Shea Himes
Phacelia rattanii
© 2022 Dee Shea Himes
Phacelia rattanii
© 2020 Ken Hickman

Phalaris aquatica    Bulbous canarygrass,  Harding grass
invasive non-native
Perennial grass

POACEAE

Phalaris aquatica
© 2018 Thomas Reyes
Phalaris aquatica
© 2021 Lenihan Mazur
Phalaris aquatica
© 2022 Lenihan Mazur

Phalaris arundinacea    Reed canarygrass
native
Perennial grass

POACEAE

Phalaris arundinacea
© 2018 Michelle Forys
Phalaris arundinacea
© 2020 Donald Burk
Phalaris arundinacea
© 2022 Dianne Lake

Phalaris minor    Little seed canarygrass,  Littleseed canarygrass,  Mediterranean canarygrass
non-native
Annual grass

POACEAE

Phalaris minor
© 2014 Steve Matson
Phalaris minor
© 2014 Steve Matson
Phalaris minor
© 2014 Steve Matson

Phleum pratense    Common timothy,  Cultivated timothy,  Timothy
non-native
Perennial grass

POACEAE

Phleum pratense
© 2013 BOB CASE
Phleum pratense
© 2019 Julie Kierstead Nelson
Phleum pratense
© 2021 Emily R. Allen

Phlox gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Phlox gracilis
© 2003 Steve Matson
Phlox gracilis
© 2016 Steve Matson
Phlox gracilis
© 2003 Steve Matson

Pholistoma auritum    Blue fiestaflower,  Fiesta flower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma auritum
© 2014 Steve Matson
Pholistoma auritum
© 2014 Steve Matson
Pholistoma auritum
© 2014 Steve Matson

Phoradendron villosum    Mistletoe
native
Shrub (parasitic)

VISCACEAE

Phoradendron villosum
© 2022 David popp
Phoradendron villosum
© 2020 R.A. Chasey
Phoradendron villosum
© 2021 R.A. Chasey

Photinia arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

Photinia arbutifolia
© 2015 James Gonsman
Photinia arbutifolia
© 2017 Gary McDonald
Photinia arbutifolia
© 2017 Gary McDonald

Phyla nodiflora    Common lippia,  Lippia,  Turkey tangle frogfruit
native
Perennial herb

VERBENACEAE

Phyla nodiflora
© 2018 Ron Vanderhoff
Phyla nodiflora
© 2009 Ron Vanderhoff
Phyla nodiflora
© 2022 Donald Burk

Physocarpus capitatus    Ninebark,  Pacific ninebark,  Western ninebark
native
Shrub

ROSACEAE

Physocarpus capitatus
© 2019 Steve Matson
Physocarpus capitatus
© 2019 Steve Matson
Physocarpus capitatus
© 2019 Steve Matson

Pickeringia montana    Montana chaparral pea
native
Shrub

FABACEAE

Pickeringia montana
© 2019 Stacie Wolny
Pickeringia montana
© 2019 Stacie Wolny
Pickeringia montana
© 2018 Eliezer Margolis

Picris echioides    Bristly ox-tongue
invasive non-native
Annual, Perennial herb

ASTERACEAE

Picris echioides
© 2016 Hayley Ross
Picris echioides
© 2019 Rachelle Gray
Picris echioides
© 2012 Elizabeth Brusati

Pinus ponderosa    Ponderosa pine,  Western yellow pine
native
Tree

PINACEAE

Pinus ponderosa
© 2021 David popp
Pinus ponderosa
© 2019 David popp
Pinus ponderosa
© 2022 Cynthia Powell

Pinus sabiniana    Bull pine,  California foothill pine,  Gray pine
native
Tree

PINACEAE

Pinus sabiniana
© 2022 Cynthia Powell
Pinus sabiniana
© 2019 Cynthia Powell
Pinus sabiniana
© 2021 R.A. Chasey

Piperia elegans    Coast piperia,  Elegant piperia,  Elegant rein orchid
native
Perennial herb

ORCHIDACEAE

Piperia elegans
© 2018 Alexandra Kookootsedes
Piperia elegans
© 2023 Steve Conger
Piperia elegans
© 2022 Hunter Breck

Piperia unalascensis    Alaska piperia,  Alaska rein orchid,  Rein orchid
native
Perennial herb

ORCHIDACEAE

Piperia unalascensis
© 2006 Steve Matson
Piperia unalascensis
© 2022 Steve Matson
Piperia unalascensis
© 2019 Ron Vanderhoff

Piptatherum miliaceum    Smilo grass
invasive non-native
Perennial grass

POACEAE

Piptatherum miliaceum
© 2022 Donald Burk
Piptatherum miliaceum
© 2009 Keir Morse
Piptatherum miliaceum
© 2022 Donald Burk

Pityrogramma triangularis    Gold back fern
native
Fern

PTERIDACEAE

Pityrogramma triangularis
© 2008 Steve Matson
Pityrogramma triangularis
© 2008 Steve Matson
Pityrogramma triangularis
© 2019 Gary McDonald

Plagiobothrys bracteatus    Bracted allocarya,  Bracted popcorn flower,  Bracted popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys bracteatus
© 2023 R.A. Chasey
Plagiobothrys bracteatus
© 2023 R.A. Chasey
Plagiobothrys bracteatus
© 2023 R.A. Chasey

Plagiobothrys canescens    Grey popcorn flower,  Valley popcorn flower,  Valley popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys canescens
© 2022 Catherine Chang
Plagiobothrys canescens
© 2016 Steve Matson
Plagiobothrys canescens
© 2016 Steve Matson

Plagiobothrys fulvus    Common popcorn flower,  Fulvous popcorn flower,  Fulvous popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys fulvus
© 2016 Steve Matson
Plagiobothrys fulvus
© 2022 Steve Matson
Plagiobothrys fulvus
© 2022 Steve Matson

Plagiobothrys fulvus var. campestris    Common popcorn flower,  Fulvous popcornflower,  Tawny popcorn flower
native
Annual herb

BORAGINACEAE

Plagiobothrys fulvus var. campestris
© 2016 Steve Matson
Plagiobothrys fulvus var. campestris
© 2016 Steve Matson
Plagiobothrys fulvus var. campestris
© 2016 Steve Matson

Plagiobothrys nothofulvus    Rusty haired popcorn flower,  Rusty popcorn flower,  Rusty popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys nothofulvus
© 2011 Steve Matson
Plagiobothrys nothofulvus
© 2011 Steve Matson
Plagiobothrys nothofulvus
© 2015 Steve Matson

Plantago erecta    California plantain,  Dotseed plantain,  Foothill plantain
native
Annual herb

PLANTAGINACEAE

Plantago erecta
© 2008 Steve Matson
Plantago erecta
© 2022 Steve Matson
Plantago erecta
© 2022 Steve Matson

Plantago hookeriana var. californica    California plantain,  Dotseed plantain,  Foothill plantain
native
Annual herb

PLANTAGINACEAE

Plantago hookeriana var. californica
© 2008 Steve Matson
Plantago hookeriana var. californica
© 2022 Steve Matson
Plantago hookeriana var. californica
© 2022 Steve Matson

Plantago lanceolata    English plantain,  Narrow leaved plantain,  Ribgrass
invasive non-native
Perennial herb

PLANTAGINACEAE

Plantago lanceolata
© 2017 Gary McDonald
Plantago lanceolata
© 2019 Joe Engelbrecht
Plantago lanceolata
© 2021 Ken Lunders

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
© 2019 Bob Sweatt
Plantago major
© 2022 Diana Wahl
Plantago major
© 2020 Ryan Carle

Platanus racemosa    California sycamore,  Western sycamore
native
Tree

PLATANACEAE

Platanus racemosa
© 2021 Ron Vanderhoff
Platanus racemosa
© 2018 Ron Vanderhoff
Platanus racemosa
© 2019 Rachelle Gray

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
© 2019 Diane Etchison
Platystemon californicus
© 2022 John L. Thompson
Platystemon californicus
© 2022 John L. Thompson

Plectritis brachystemon    Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis brachystemon
© 2023 Catherine Chang
Plectritis brachystemon
© 2005 Steve Matson
Plectritis brachystemon
© 2018 Gail Johnson

Plectritis ciliosa    Long spurred plectritis,  Longspur seablush
native
Annual herb

VALERIANACEAE

Plectritis ciliosa
© 2022 Steve Matson
Plectritis ciliosa
© 2005 Steve Matson
Plectritis ciliosa
© 2022 Steve Matson

Plectritis congesta    Sea blush,  Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta
© 2023 Helen Hancock
Plectritis congesta
© 2023 Catherine Chang
Plectritis congesta
© 2023 Helen Hancock

Plectritis macrocera    Long horn plectritis,  Longhorn plectritis,  White plectritis
native
Annual herb

VALERIANACEAE

Plectritis macrocera
© 2019 Gary McDonald
Plectritis macrocera
© 2020 Bob Sweatt
Plectritis macrocera
© 2020 Susan McDougall

Poa annua    Annual blue grass,  Annual bluegrass
non-native
Annual grass

POACEAE

Poa annua
© 2021 Ron Vanderhoff
Poa annua
© 2022 John Rawlings
Poa annua
© 2015 Richard Chasey

Poa bolanderi ssp. howellii    Howell's blue grass,  Howell's bluegrass
native
Annual grass

POACEAE

Poa bolanderi ssp. howellii
© 2018 Ken Hickman
Poa bolanderi ssp. howellii
© 2020 Ken Hickman
Poa bolanderi ssp. howellii
© 2020 Ken Hickman

Poa bulbosa    Bulbous blue grass,  Bulbous bluegrass
non-native
Perennial grass

POACEAE

Poa bulbosa
© 2020 Julie A. Kierstead
Poa bulbosa
© 2019 Stephany Dery
Poa bulbosa
© 2020 Thomas Reyes

Poa howellii    Howell's blue grass,  Howell's bluegrass
native
Annual grass

POACEAE

Poa howellii
© 2018 Ken Hickman
Poa howellii
© 2020 Ken Hickman
Poa howellii
© 2020 Ken Hickman

Poa pratensis    Kentucky blue grass,  Kentucky bluegrass
invasive non-native
Perennial grass

POACEAE

Poa pratensis
© 2013 Andrea Williams
Poa pratensis
© 2008 Keir Morse
Poa pratensis
© 2013 Andrea Williams

Poa scabrella    One sided blue grass,  Pine bluegrass,  Sandberg's bluegrass
native
Perennial grass

POACEAE

Poa scabrella
© 2018 Ron Vanderhoff
Poa scabrella
© 2018 Ron Vanderhoff
Poa scabrella
© 2018 Ron Vanderhoff

Poa secunda    One sided blue grass,  Pine bluegrass,  Sandberg bluegrass
native
Perennial grass

POACEAE

Poa secunda
© 2019 Rachelle Gray
Poa secunda
© 2019 Paul Aigner
Poa secunda
© 2020 Paul Aigner

Pogogyne serpylloides    Thyme leaf mesa mint,  Thymeleaf mesamint
native
Annual herb

LAMIACEAE

Pogogyne serpylloides
© 2020 Stacie Wolny
Pogogyne serpylloides
© 2022 R.A. Chasey
Pogogyne serpylloides
© 2020 Stacie Wolny

Polygonum arenastrum    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum arenastrum
© 2016 Barbara Boethling
Polygonum arenastrum
© 2021 Ron Vanderhoff
Polygonum arenastrum
© 2014 Richard Chasey

Polygonum lapathifolium    Common knotweed
native
Annual herb

POLYGONACEAE

Polygonum lapathifolium
© 2020 Ron Vanderhoff
Polygonum lapathifolium
© 2017 Ron Vanderhoff
Polygonum lapathifolium
© 2020 Ron Vanderhoff

Polygonum punctatum    Dotted smartweed
native
Perennial herb

POLYGONACEAE

Polygonum punctatum
© 2018 Ron Vanderhoff
Polygonum punctatum
© 2018 Ron Vanderhoff
Polygonum punctatum
© 2022 Helen Hancock

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
© 2020 Ron Vanderhoff
Polypodium californicum
© 2021 Ron Vanderhoff
Polypodium californicum
© 2023 Keir Morse

Polypogon australis    Chilean beard grass,  Chilean rabbitsfoot grass
non-native
Perennial grass

POACEAE

Polypogon australis
© 2018 Elliot Gunnison
Polypogon australis
© 2020 David popp
Polypogon australis
© 2018 Elliot Gunnison

Polypogon interruptus    Ditch beard grass,  Ditch rabbitsfoot grass
non-native
Perennial grass

POACEAE

Polypogon interruptus
© 2022 John Rawlings
Polypogon interruptus
© 2022 John Rawlings
Polypogon interruptus
© 2020 Ron Vanderhoff

Polypogon monspeliensis    Annual beard grass,  Rabbitsfoot grass
invasive non-native
Annual grass

POACEAE

Polypogon monspeliensis
© 2008 Steve Matson
Polypogon monspeliensis
© 2014 Steve Matson
Polypogon monspeliensis
© 2008 Steve Matson

Polystichum munitum ssp. imbricans    Narrowleaf swordfern,  Rock sword fern
native
Fern

DRYOPTERIDACEAE

Polystichum munitum ssp. imbricans
© 2018 David popp
Polystichum munitum ssp. imbricans
© 2008 Keir Morse
Polystichum munitum ssp. imbricans
© 2018 David popp

Populus balsamifera ssp. trichocarpa    Black cottonwood
native
Tree

SALICACEAE

Populus balsamifera ssp. trichocarpa
© 2019 Ron Vanderhoff
Populus balsamifera ssp. trichocarpa
© 2012 Steve Matson
Populus balsamifera ssp. trichocarpa
© 2012 Steve Matson

Populus fremontii    Fremont cottonwood
native
Tree

SALICACEAE

Populus fremontii
© 2018 Julie Kierstead Nelson
Populus fremontii
© 2023 Cynthia Powell
Populus fremontii
© 2019 Hailey Laskey

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

Populus trichocarpa
© 2019 Ron Vanderhoff
Populus trichocarpa
© 2012 Steve Matson
Populus trichocarpa
© 2012 Steve Matson

Potamogeton illinoensis    Illinois pondweed,  Pondweed,  Shining pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton illinoensis
© 2014 Robert L. Carr
Potamogeton illinoensis
© 2014 Robert L. Carr
Potamogeton illinoensis
© 2014 Robert L. Carr

Potamogeton natans    Floating leaved pondweed,  Floating pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton natans
© 2006 Steve Matson
Potamogeton natans
© 2006 Steve Matson
Potamogeton natans
© 2006 Steve Matson

Potamogeton pectinatus    Sago pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton pectinatus
© 2021 Ron Vanderhoff
Potamogeton pectinatus
© 2021 Ron Vanderhoff
Potamogeton pectinatus
© 2021 Ron Vanderhoff

Potentilla glandulosa    Sticky cinquefoil
native
Perennial herb

ROSACEAE

Potentilla glandulosa
© 2020 Mary Conway
Potentilla glandulosa
© 2019 Diane Etchison
Potentilla glandulosa
© 2020 Diane Etchison

Prunus amygdalus    Domestic almond,  Sweet almond
non-native
Tree

ROSACEAE

Prunus amygdalus
© 2012 Wes Gray
Prunus amygdalus
© 2022 Donald Burk
Prunus amygdalus
© 2021 David popp

Prunus armeniaca    Apricot
non-native
Tree

ROSACEAE

Prunus armeniaca
© 2014 John Malpas
Prunus armeniaca
© 2005 Luigi Rignanese
Prunus armeniaca
© 2005 Luigi Rignanese

Prunus dulcis    Domestic almond,  Sweet almond
non-native
Tree

ROSACEAE

Prunus dulcis
© 2012 Wes Gray
Prunus dulcis
© 2022 Donald Burk
Prunus dulcis
© 2021 David popp

Prunus ilicifolia    Holly leaf cherry,  Holly leaved cherry,  Hollyleaf cherry
native
Tree, Shrub

ROSACEAE

Prunus ilicifolia
© 2022 David Strauch
Prunus ilicifolia
© 2019 Marisa Persaud
Prunus ilicifolia
© 2019 Bryant Baker

Prunus virginiana var. demissa    Chokecherry,  Western choke cherry,  Western chokecherry
native
Tree, Shrub

ROSACEAE

Prunus virginiana var. demissa
© 2005 Steve Matson
Prunus virginiana var. demissa
© 2005 Steve Matson
Prunus virginiana var. demissa
© 2020 Susan McDougall

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

Psoralea macrostachya    California hemp,  Large leather root
native
Perennial herb

FABACEAE

Psoralea macrostachya
© 2020 Ron Vanderhoff
Psoralea macrostachya
© 2022 Natalie McNear
Psoralea macrostachya
© 2021 Julie King

Psoralea orbicularis    Creeping leather root,  Round leaved psoralea,  Roundleaf leather root
native
Perennial herb

FABACEAE

Psoralea orbicularis
© 2015 Tim Miller
Psoralea orbicularis
© 2018 Hunter Breck
Psoralea orbicularis
© 2019 Shane Hanofee

Psoralea physodes    California tea,  Common rupertia,  Forest scurfpea
native
Perennial herb

FABACEAE

Psoralea physodes
© 2021 Mary Ann Machi
Psoralea physodes
© 2023 Steve Conger
Psoralea physodes
© 2020 R.A. Chasey

Ptelea crenulata    California hoptree,  Hop tree,  Western hoptree
native
Tree, Shrub

RUTACEAE

Ptelea crenulata
© 2022 BOB CASE
Ptelea crenulata
© 2021 Suzanne L. Weakley
Ptelea crenulata
© 2018 Bill Haley

Pteridium aquilinum var. pubescens    Hairy brackenfern,  Western bracken fern
native
Fern

DENNSTAEDTIACEAE

Pteridium aquilinum var. pubescens
© 2019 Ron Vanderhoff
Pteridium aquilinum var. pubescens
© 2019 Ron Vanderhoff
Pteridium aquilinum var. pubescens
© 2022 Bob Sweatt

Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

Pterostegia drymarioides
© 2016 Steve Matson
Pterostegia drymarioides
© 2016 Steve Matson
Pterostegia drymarioides
© 2005 Steve Matson

Pyracantha angustifolia    Narrowleaf firethorn
invasive non-native
Shrub

ROSACEAE

Pyracantha angustifolia
© 2018 Abbot Chambers
Pyracantha angustifolia
© 2019 Abbot Chambers
Pyracantha angustifolia
© 2018 Chris Qian

Quercus agrifolia    California live oak,  Coast live oak
native
Tree

FAGACEAE

Quercus agrifolia
© 2019 Patrick Furtado
Quercus agrifolia
© 2022 Andy Ford
Quercus agrifolia
© 2018 Marcyn Del Clements

Quercus berberidifolia    Inland scrub oak
native
Tree

FAGACEAE

Quercus berberidifolia
© 2022 David Strauch
Quercus berberidifolia
© 2020 Cynthia Keiser
Quercus berberidifolia
© 2020 Cynthia Keiser

Quercus chrysolepis    Canyon live oak,  Canyon oak, maul oak, goldcup oak,  Gold cup oak
native
Tree

FAGACEAE

Quercus chrysolepis
© 2017 Aaron Sunshine
Quercus chrysolepis
© 2020 R.A. Chasey
Quercus chrysolepis
© 2018 joaquin hale

Quercus douglasii    Blue oak
native
Tree

FAGACEAE

Quercus douglasii
© 2023 Ryan O'Dell
Quercus douglasii
© 2018 Gary McDonald
Quercus douglasii
© 2020 Charles Russell

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    Leather oak
native
Shrub

FAGACEAE

Quercus durata
© 2019 Cynthia Powell
Quercus durata
© 2019 David popp
Quercus durata
© 2019 Susan McDougall

Quercus kelloggii    Black oak,  California black oak
native
Tree

FAGACEAE

Quercus kelloggii
© 2020 Kim Cabrera
Quercus kelloggii
© 2021 Emily Sluiman
Quercus kelloggii
© 2023 Ryan O'Dell

Quercus lobata    California white oak,  Valley oak
native
Tree

FAGACEAE

Quercus lobata
© 2023 Helen Hancock
Quercus lobata
© 2021 Cynthia Powell
Quercus lobata
© 2023 Suzanne L. Weakley

Quercus wislizenii    Interior live oak,  chapparal oak
native
Tree, Shrub

FAGACEAE

Quercus wislizenii
© 2019 Ron Vanderhoff
Quercus wislizenii
© 2019 Ron Vanderhoff
Quercus wislizenii
© 2019 Barbara Brydolf

Rafinesquia californica    California chicory,  California plumseed
native
Annual herb

ASTERACEAE

Rafinesquia californica
© 2019 David Greenberger
Rafinesquia californica
© 2021 Ron Vanderhoff
Rafinesquia californica
© 2017 Steve Matson

Ranunculus aquatilis var. capillaceus    white water butter cup
native
Perennial herb (aquatic)

RANUNCULACEAE

Ranunculus aquatilis var. capillaceus
© 2016 Ken Lunders
Ranunculus aquatilis var. capillaceus
© 2007 Steve Matson
Ranunculus aquatilis var. capillaceus
© 2022 Jonathan Widdicombe

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus californicus
© 2016 Steve Matson
Ranunculus californicus
© 2016 Steve Matson
Ranunculus californicus
© 2016 Steve Matson

Ranunculus hebecarpus    Delicate buttercup,  Pubescent fruited buttercup,  Slender annual buttercup
native
Annual herb

RANUNCULACEAE

Ranunculus hebecarpus
© 2019 Ron Vanderhoff
Ranunculus hebecarpus
© 2021 Ron Vanderhoff
Ranunculus hebecarpus
© 2019 Ron Vanderhoff

Ranunculus muricatus    Buttercup,  Pricklefruit buttercup,  Spiny buttercup
non-native
Annual, Perennial herb

RANUNCULACEAE

Ranunculus muricatus
© 2023 R.A. Chasey
Ranunculus muricatus
© 2023 Alaine Arslan
Ranunculus muricatus
© 2009 Julie A. Kierstead

Raphanus sativus    Cultivated radish,  Jointed charlock,  Wild radish
invasive non-native
Annual, Biennial herb

BRASSICACEAE

Raphanus sativus
© 2017 Lisa Miller
Raphanus sativus
© 2020 Ron Vanderhoff
Raphanus sativus
© 2023 Julia Markey

Rhamnus californica ssp. tomentella    Hoary coffeeberry
native
Shrub

RHAMNACEAE

Rhamnus californica ssp. tomentella
© 2020 R.A. Chasey
Rhamnus californica ssp. tomentella
© 2016 Ron Vanderhoff
Rhamnus californica ssp. tomentella
© 2023 Ron Vanderhoff

Rhamnus crocea    Redberry buckthorn
native
Shrub

RHAMNACEAE

Rhamnus crocea
© 2011 Michael Mitchell
Rhamnus crocea
© 2022 Ron Vanderhoff
Rhamnus crocea
© 2019 Ron Vanderhoff

Rhamnus crocea ssp. ilicifolia    Evergreen buckthorn,  Hollyleaf redberry
native
Shrub

RHAMNACEAE

Rhamnus crocea ssp. ilicifolia
© 2016 Steve Matson
Rhamnus crocea ssp. ilicifolia
© 2016 Steve Matson
Rhamnus crocea ssp. ilicifolia
© 2006 Steve Matson

Rhamnus ilicifolia    Evergreen buckthorn,  Hollyleaf redberry
native
Shrub

RHAMNACEAE

Rhamnus ilicifolia
© 2016 Steve Matson
Rhamnus ilicifolia
© 2016 Steve Matson
Rhamnus ilicifolia
© 2006 Steve Matson

Rhamnus tomentella    Hoary coffeeberry
native
Shrub

RHAMNACEAE

Rhamnus tomentella
© 2020 R.A. Chasey
Rhamnus tomentella
© 2016 Ron Vanderhoff
Rhamnus tomentella
© 2023 Ron Vanderhoff

Rhus diversiloba    Poison oak,  Poisonoak,  Western Poison Oak
native
Vine, Shrub

ANACARDIACEAE

Rhus diversiloba
© 2020 Ron Vanderhoff
Rhus diversiloba
© 2019 Randy Huey
Rhus diversiloba
© 2021 Bryant Baker

Ribes californicum    California gooseberry,  Hillside gooseberry
native
Shrub

GROSSULARIACEAE

Ribes californicum
© 2020 Sue Graue
Ribes californicum
© 2018 Gary McDonald
Ribes californicum
© 2019 Sue Graue

Ribes malvaceum    Chaparral currant
native
Shrub

GROSSULARIACEAE

Ribes malvaceum
© 2020 Bryant Baker
Ribes malvaceum
© 2020 Bryant Baker
Ribes malvaceum
© 2020 Bryant Baker

Ribes menziesii var. leptosmum    Canyon gooseberry
native
Shrub

GROSSULARIACEAE

Ribes menziesii var. leptosmum
© 2018 Rebecca Schoenenberger
Ribes menziesii var. leptosmum
© 2019 Michael Mitchell
Ribes menziesii var. leptosmum
© 2020 Susan McDougall

Ribes menziesii var. menziesii    Canyon gooseberry
native
Shrub

GROSSULARIACEAE

Ribes menziesii var. menziesii
© 2018 Rebecca Schoenenberger
Ribes menziesii var. menziesii
© 2019 Michael Mitchell
Ribes menziesii var. menziesii
© 2020 Susan McDougall

Ribes quercetorum    Foothill gooseberry,  Oak gooseberry,  Rock gooseberry
native
Shrub

GROSSULARIACEAE

Ribes quercetorum
© 2020 Susan McDougall
Ribes quercetorum
© 2016 Steve Matson
Ribes quercetorum
© 2020 Susan McDougall

Ribes speciosum    Fuchsia flowered gooseberry,  Fuchsiaflower gooseberry
native
Shrub

GROSSULARIACEAE

Ribes speciosum
© 2022 David Chipping
Ribes speciosum
© 2021 Ron Vanderhoff
Ribes speciosum
© 2021 Ron Vanderhoff

Rigiopappus leptocladus    Rigiopappus,  Wire weed,  Wireweed
native
Annual herb

ASTERACEAE

Rigiopappus leptocladus
© 2021 Steve Laymon
Rigiopappus leptocladus
© 2021 Steve Laymon
Rigiopappus leptocladus
© 2022 John Rawlings

Robinia pseudoacacia    Black locust
invasive non-native
Tree

FABACEAE

Robinia pseudoacacia
© 2021 Ron Vanderhoff
Robinia pseudoacacia
© 2021 David Wolfson
Robinia pseudoacacia
© 2015 Ron Vanderhoff

Rorippa curvisiliqua    Curvepod yellow cress,  Curvepod yellowcress,  Western yellow cress
native
Annual, Perennial herb

BRASSICACEAE

Rorippa curvisiliqua
© 2020 Ron Vanderhoff
Rorippa curvisiliqua
© 2023 Ron Vanderhoff
Rorippa curvisiliqua
© 2023 Ron Vanderhoff

native
Perennial herb (aquatic)

BRASSICACEAE

Rorippa nasturtium-aquaticum
© 2019 Patrick Furtado
Rorippa nasturtium-aquaticum
© 2019 Diane Etchison
Rorippa nasturtium-aquaticum
© 2012 Steve Matson

Rosa californica    California wild rose,  California wildrose
native
Shrub

ROSACEAE

Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2021 Sue Graue

Rosa gymnocarpa    Dwarf rose,  Baldhip rose
native
Shrub

ROSACEAE

Rosa gymnocarpa
© 2012 Michael Mitchell
Rosa gymnocarpa
© 2012 Michael Mitchell
Rosa gymnocarpa
© 2017 David popp

Rosa spithamea var. sonomensis    Ground rose,  Sonoma rose
native
Shrub

ROSACEAE

Rosa spithamea var. sonomensis
© 2021 David Gowen
Rosa spithamea var. sonomensis
© 1973 Geoff Burleigh
Rosa spithamea var. sonomensis
© 2020 David Krause

Rosa spithamea var. spithamea    Ground rose,  Sonoma rose
native
Shrub

ROSACEAE

Rosa spithamea var. spithamea
© 2021 David Gowen
Rosa spithamea var. spithamea
© 1973 Geoff Burleigh
Rosa spithamea var. spithamea
© 2020 David Krause

Rubus armeniacus    Himalayan blackberry,  black berry,  Armenian blackberry
invasive non-native
Shrub

ROSACEAE

Rubus armeniacus
© 2014 James Gonsman
Rubus armeniacus
© 2020 Julie A. Kierstead
Rubus armeniacus
© 2018 Richard Spjut

Rubus procerus    Himalayan blackberry,  black berry,  Armenian blackberry
invasive non-native
Shrub

ROSACEAE

Rubus procerus
© 2014 James Gonsman
Rubus procerus
© 2020 Julie A. Kierstead
Rubus procerus
© 2018 Richard Spjut

Rubus ursinus    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus ursinus
© 2018 Ken Lunders
Rubus ursinus
© 2019 Ron Vanderhoff
Rubus ursinus
© 2015 Kelli Kallenborn

Rubus vitifolius    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus vitifolius
© 2018 Ken Lunders
Rubus vitifolius
© 2019 Ron Vanderhoff
Rubus vitifolius
© 2015 Kelli Kallenborn

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella
© 2017 Gary McDonald
Rumex acetosella
© 2008 Steve Matson
Rumex acetosella
© 2019 Patrick Furtado

Rumex conglomeratus    Clustered dock,  Green dock
non-native
Perennial herb

POLYGONACEAE

Rumex conglomeratus
© 2020 Ron Vanderhoff
Rumex conglomeratus
© 2023 Ron Vanderhoff
Rumex conglomeratus
© 2023 Ron Vanderhoff

Rumex crispus    Curly dock,  Curly leaved dock,  Rhubarb
invasive non-native
Perennial herb

POLYGONACEAE

Rumex crispus
© 2018 Tim Lewis
Rumex crispus
© 2019 Diane Etchison
Rumex crispus
© 2023 Ron Vanderhoff

Rumex obtusifolius    Bitter dock
non-native
Perennial herb

POLYGONACEAE

Rumex obtusifolius
© 2021 Toni Corelli
Rumex obtusifolius
© 2021 Toni Corelli
Rumex obtusifolius
© null

Rumex salicifolius    Willow dock,  Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius
© 2023 Ron Vanderhoff
Rumex salicifolius
© 2012 Gary McDonald
Rumex salicifolius
© 2012 Gary McDonald

Rupertia physodes    California tea,  Common rupertia,  Forest scurfpea
native
Perennial herb

FABACEAE

Rupertia physodes
© 2021 Mary Ann Machi
Rupertia physodes
© 2023 Steve Conger
Rupertia physodes
© 2020 R.A. Chasey

Sagittaria calycina    Hooded arrowhead,  Montevideo arrowhead
native
Perennial herb (aquatic)

ALISMATACEAE

Sagittaria calycina
© 2022 Donald Burk
Sagittaria calycina
© 2022 Donald Burk
Sagittaria calycina
© 2022 Donald Burk

Sagittaria montevidensis ssp. calycina    Hooded arrowhead,  Montevideo arrowhead
native
Perennial herb (aquatic)

ALISMATACEAE

Sagittaria montevidensis ssp. calycina
© 2022 Donald Burk
Sagittaria montevidensis ssp. calycina
© 2022 Donald Burk
Sagittaria montevidensis ssp. calycina
© 2022 Donald Burk

Salix babylonica    Weeping willow
non-native
Tree

SALICACEAE

Salix babylonica
© 2018 Ron Vanderhoff
Salix babylonica
© 2018 Ron Vanderhoff
Salix babylonica
© 2018 Ron Vanderhoff

Salix exigua var. hindsiana    Sandbar willow
native
Tree, Shrub

SALICACEAE

Salix exigua var. hindsiana
© 2022 Robbie Lee
Salix exigua var. hindsiana
© 2017 Dee Shea Himes
Salix exigua var. hindsiana
© 02/22/2022 John Rawlings

Salix hindsiana    Sandbar willow
native
Tree, Shrub

SALICACEAE

Salix hindsiana
© 2022 Robbie Lee
Salix hindsiana
© 2017 Dee Shea Himes
Salix hindsiana
© 02/22/2022 John Rawlings

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

Salix laevigata
© 2017 Steve Matson
Salix laevigata
© 2019 Barbara Brydolf
Salix laevigata
© 2022 Mark Gary

Salsola pestifer    Prickly russian thistle,  Russianthistle,  Tumbleweed
invasive non-native
Annual herb

CHENOPODIACEAE

Salsola pestifer
© 2017 Ron Vanderhoff
Salsola pestifer
© 2018 Angelique Herman
Salsola pestifer
© 2023 Cynthia Powell

Salsola tragus    Prickly russian thistle,  Russianthistle,  Tumbleweed
invasive non-native
Annual herb

CHENOPODIACEAE

Salsola tragus
© 2017 Ron Vanderhoff
Salsola tragus
© 2018 Angelique Herman
Salsola tragus
© 2023 Cynthia Powell

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

Salvia columbariae
© 2020 Ron Vanderhoff
Salvia columbariae
© 2022 Mike Russler
Salvia columbariae
© 2022 Mike Russler

Sambucus mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

Sambucus mexicana
© 2021 Mike Russler
Sambucus mexicana
© 2020 Diane Etchison
Sambucus mexicana
© 2022 El Byrne

Sanicula bipinnata    Poison sanicle
native
Perennial herb

APIACEAE

Sanicula bipinnata
© 2008 Steve Matson
Sanicula bipinnata
© 2008 Steve Matson
Sanicula bipinnata
© 2022 R.A. Chasey

Sanicula bipinnatifida    Purple sanicle,  Snakeroot,  Purple Sanicle, Shoe Buttons
native
Perennial herb

APIACEAE

Sanicula bipinnatifida
© 2019 Diane Etchison
Sanicula bipinnatifida
© 2018 Gary McDonald
Sanicula bipinnatifida
© 2021 Robin Carter

Sanicula crassicaulis    Gamble weed,  Pacific blacksnakeroot,  Pacific sanicle
native
Perennial herb

APIACEAE

Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2021 Steve Laymon

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 tuberosa    Tuberous sanicle,  Turkey pea
native
Perennial herb

APIACEAE

Sanicula tuberosa
© 2023 R.A. Chasey
Sanicula tuberosa
© 2023 R.A. Chasey
Sanicula tuberosa
© 2023 R.A. Chasey

Satureja douglasii    Yerba buena
native
Perennial herb

LAMIACEAE

Satureja douglasii
© 2019 Gary McDonald
Satureja douglasii
© 2012 Gary McDonald
Satureja douglasii
© 2012 Gary McDonald

Saxifraga californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Saxifraga californica
© 2016 Steve Matson
Saxifraga californica
© 2016 Steve Matson
Saxifraga californica
© 2016 Steve Matson

Scandix pecten-veneris    Shepherd's needle,  Shepherdsneedle,  Venus' needle
non-native
Annual herb, Vine

APIACEAE

Scandix pecten-veneris
© 2006 Steve Matson
Scandix pecten-veneris
© 2018 Stacie Wolny
Scandix pecten-veneris
© 2006 Steve Matson

native
Perennial grasslike herb

CYPERACEAE

Scirpus acutus var. occidentalis
© 2019 Steve Matson
Scirpus acutus var. occidentalis
© 2019 Steve Matson
Scirpus acutus var. occidentalis
© 2019 Steve Matson

Scrophularia californica ssp. floribunda    California bee plant,  California figwort
native
Perennial herb

SCROPHULARIACEAE

Scrophularia californica ssp. floribunda
© 2020 Bob Sweatt
Scrophularia californica ssp. floribunda
© 2006 Steve Matson
Scrophularia californica ssp. floribunda
© 2019 Cynthia Powell

Scutellaria bolanderi ssp. bolanderi    Bolander's skullcap,  Sierra skullcap
native
Perennial herb

LAMIACEAE

Scutellaria bolanderi ssp. bolanderi
© 2022 Mike Russler
Scutellaria bolanderi ssp. bolanderi
© 2022 Mike Russler
Scutellaria bolanderi ssp. bolanderi
© 2022 Mike Russler

Scutellaria siphocampyloides    Curve flowered skullcap,  Gray leaved skullcap,  Grayleaf skullcap
native
Perennial herb

LAMIACEAE

Scutellaria siphocampyloides
© 2016 Steve Matson
Scutellaria siphocampyloides
© 2016 Steve Matson
Scutellaria siphocampyloides
© 2016 Steve Matson

Scutellaria tuberosa    Danny's skullcap,  Scullcap
native
Perennial herb

LAMIACEAE

Scutellaria tuberosa
© 2006 Steve Matson
Scutellaria tuberosa
© 2006 Steve Matson
Scutellaria tuberosa
© 2006 Steve Matson

Sedum radiatum    Coast range stonecrop
native
Annual herb

CRASSULACEAE

Sedum radiatum
© 2017 Steve Matson
Sedum radiatum
© 2017 Steve Matson
Sedum radiatum
© 2017 Steve Matson

Sedum spathulifolium    Broadleaf stonecrop,  Pacific stonecrop,  Stone crop
native
Perennial herb

CRASSULACEAE

Sedum spathulifolium
© 2021 Steve Matson
Sedum spathulifolium
© 2021 Steve Matson
Sedum spathulifolium
© 2023 R.A. Chasey

Sedum stenopetalum ssp. radiatum    Coast range stonecrop
native
Annual herb

CRASSULACEAE

Sedum stenopetalum ssp. radiatum
© 2017 Steve Matson
Sedum stenopetalum ssp. radiatum
© 2017 Steve Matson
Sedum stenopetalum ssp. radiatum
© 2017 Steve Matson

Selaginella bigelovii    Bigelow's moss fern,  Bigelow's spike moss,  Bushy spikemoss
Selaginella bigelovii
© 2019 Ron Vanderhoff
Selaginella bigelovii
© 2019 Ron Vanderhoff
Selaginella bigelovii
© 2018 Ron Vanderhoff

Senecio aronicoides    California butterweed,  California groundsel,  California rayless butterweed
native
Perennial herb

ASTERACEAE

Senecio aronicoides
© 2020 Helen Hancock
Senecio aronicoides
© 2008 Steve Matson
Senecio aronicoides
© 2020 Julie A. Kierstead

Senecio breweri    Brewer's ragwort
native
Perennial herb

ASTERACEAE

Senecio breweri
© 2017 Patricia Ashe
Senecio breweri
© 2019 John Rawlings
Senecio breweri
© 2019 Angelique Herman

Senecio douglasii    Bush groundsel,  Bush senecio,  Douglas' groundsel
native
Shrub

ASTERACEAE

Senecio douglasii
© 2018 Richard Spjut
Senecio douglasii
© 2019 Ron Vanderhoff
Senecio douglasii
© 2023 Helen Hancock

Senecio flaccidus var. douglasii    Bush groundsel,  Bush senecio,  Douglas' groundsel
native
Shrub

ASTERACEAE

Senecio flaccidus var. douglasii
© 2018 Richard Spjut
Senecio flaccidus var. douglasii
© 2019 Ron Vanderhoff
Senecio flaccidus var. douglasii
© 2023 Helen Hancock

Senecio vulgaris    Common groundsel,  Old man in the spring,  Old man of spring
non-native
Annual herb

ASTERACEAE

Senecio vulgaris
© 2017 Barbara Boethling
Senecio vulgaris
© 2019 Ron Vanderhoff
Senecio vulgaris
© 2021 Toni Corelli

Sherardia arvensis    Blue fieldmadder,  Field madder
non-native
Annual herb

RUBIACEAE

Sherardia arvensis
© 2005 Steve Matson
Sherardia arvensis
© 2008 Steve Matson
Sherardia arvensis
© 2008 Steve Matson

Sida hederacea    Alkali mallow
native
Perennial herb

MALVACEAE

Sida hederacea
© 2023 Donald Burk
Sida hederacea
© 2019 Bonnie Nickel
Sida hederacea
© 2019 Bonnie Nickel

Sidalcea diploscypha    Fringed checker mallow,  Fringed checkerbloom,  Fringed sidalcea
native
Annual herb

MALVACEAE

Sidalcea diploscypha
© 2022 William Lundgren
Sidalcea diploscypha
© 2016 Jennifer Wheeler
Sidalcea diploscypha
© 2021 Cynthia Powell

Sidalcea malvaeflora    Checker bloom,  Checker mallow,  Dwarf checkerbloom
native
Perennial herb

MALVACEAE

Sidalcea malvaeflora
© 2022 David Strauch
Sidalcea malvaeflora
© 2018 Sheila Lodge
Sidalcea malvaeflora
© 2022 Suzanne L. Weakley

Silene gallica    Common catchfly,  Windmill pink
non-native
Annual herb

CARYOPHYLLACEAE

Silene gallica
© 2019 Mary Wloch
Silene gallica
© 2017 Gary McDonald
Silene gallica
© 2019 Gary McDonald

Silybum marianum    Blessed milkthistle,  Milk thistle
invasive non-native
Annual, Perennial herb

ASTERACEAE

Silybum marianum
© 2020 Nancy Hamlett
Silybum marianum
© 2019 Marisa Persaud
Silybum marianum
© 2018 Angelique Herman

Sinapis incana    Mediterranean hoary mustard,  Short podded mustard,  Summer mustard
invasive non-native
Perennial herb

BRASSICACEAE

Sinapis incana
© 2017 Gary McDonald
Sinapis incana
© 2017 Gary McDonald
Sinapis incana
© 2022 Ron Vanderhoff

Sisymbrium irio    London rocket
invasive non-native
Annual herb

BRASSICACEAE

Sisymbrium irio
© 2022 Ron Vanderhoff
Sisymbrium irio
© 2022 Ron Vanderhoff
Sisymbrium irio
© 2022 Mike Russler

Sisymbrium officinale    Hedge mustard,  Hedgemustard
non-native
Annual herb

BRASSICACEAE

Sisymbrium officinale
© 2021 Ann Garside
Sisymbrium officinale
© 2022 Julian Geoghegan
Sisymbrium officinale
© 2021 Ron Vanderhoff

Sisyrinchium bellum    Western blue eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium bellum
© 2024 Steve Conger
Sisyrinchium bellum
© 2024 Ron Vanderhoff
Sisyrinchium bellum
© 2019 Stacie Wolny

Sitanion jubatum    Big squirreltail grass
native
Perennial grass

POACEAE

Sitanion jubatum
© 2019 Ron Vanderhoff
Sitanion jubatum
© 2023 Helen Hancock
Sitanion jubatum
© 2021 Denise Defreese

Smilacina racemosa    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Smilacina racemosa
© 2020 Bob Sweatt
Smilacina racemosa
© 2018 Steve Matson
Smilacina racemosa
© 2019 Cynthia Powell

Smilacina racemosa var. amplexicaulis    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Smilacina racemosa var. amplexicaulis
© 2020 Bob Sweatt
Smilacina racemosa var. amplexicaulis
© 2018 Steve Matson
Smilacina racemosa var. amplexicaulis
© 2019 Cynthia Powell

Smilacina stellata    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Smilacina stellata
© 2021 Cyril Guyot
Smilacina stellata
© 2003 Steve Matson
Smilacina stellata
© 2020 Susan McDougall

Smilacina stellata var. sessilifolia    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Smilacina stellata var. sessilifolia
© 2021 Cyril Guyot
Smilacina stellata var. sessilifolia
© 2003 Steve Matson
Smilacina stellata var. sessilifolia
© 2020 Susan McDougall

Solanum americanum    American black nightshade,  Common nightshade,  Small flowered nightshade
native
Annual, Perennial herb

SOLANACEAE

Solanum americanum
© 2014 Steve Matson
Solanum americanum
© 2019 Gary McDonald
Solanum americanum
© 2021 David Wolfson

Solanum nigrum    Black nightshade
non-native
Annual herb

SOLANACEAE

Solanum nigrum
© 2019 Julian Geoghegan
Solanum nigrum
© 2019 Patrick Furtado
Solanum nigrum
© 2021 Mike Russler

Solanum nodiflorum    American black nightshade,  Common nightshade,  Small flowered nightshade
native
Annual, Perennial herb

SOLANACEAE

Solanum nodiflorum
© 2014 Steve Matson
Solanum nodiflorum
© 2019 Gary McDonald
Solanum nodiflorum
© 2021 David Wolfson

Solanum umbelliferum    Blue witch nightshade,  Bluewitch nightshade
native
Shrub

SOLANACEAE

Solanum umbelliferum
© 2014 Steve Matson
Solanum umbelliferum
© 2014 Steve Matson
Solanum umbelliferum
© 2014 Steve Matson

Solidago californica    California goldenrod,  Oreja de liebre
native
Perennial herb

ASTERACEAE

Solidago californica
© 2013 Steve Matson
Solidago californica
© 2008 Steve Matson
Solidago californica
© 2008 Steve Matson

Solidago occidentalis    Western flat topped goldenrod,  Western goldenrod,  Western goldentop
native
Perennial herb

ASTERACEAE

Solidago occidentalis
© 2021 Steve Matson
Solidago occidentalis
© 2018 Ron Vanderhoff
Solidago occidentalis
© 2021 R.A. Chasey

Sonchus asper    Spiny sowthistle
non-native
Annual herb

ASTERACEAE

Sonchus asper
© 2010 Michael Mitchell
Sonchus asper
© 2020 Julie A. Kierstead
Sonchus asper
© 2017 MCOSD Restoration Crew

Sonchus oleraceus    Common sow thistle,  Common sowthistle,  Sow thistle
non-native
Annual herb

ASTERACEAE

Sonchus oleraceus
© 2019 Diane Etchison
Sonchus oleraceus
© 2015 Jesse Rorabaugh
Sonchus oleraceus
© 2024 Ron Vanderhoff

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis
© 2019 Diane Etchison
Spergula arvensis
© 2020 Mary Conway
Spergula arvensis
© 2022 Cynthia Powell

Spergularia rubra    Purple sand spurry,  Red sandspurry,  Ruby sandspurry
non-native
Annual, Perennial herb

CARYOPHYLLACEAE

Spergularia rubra
© 2023 Ron Vanderhoff
Spergularia rubra
© 2023 Ron Vanderhoff
Spergularia rubra
© 2023 Ron Vanderhoff

Spiranthes porrifolia    Creamy ladies tresses,  Creamy ladies' tresses,  Western ladies tresses
native
Perennial herb

ORCHIDACEAE

Spiranthes porrifolia
© 2016 Steve Matson
Spiranthes porrifolia
© 2016 Steve Matson
Spiranthes porrifolia
© 2019 Julie Kierstead Nelson

Spiranthes romanzoffiana var. porrifolia    Creamy ladies tresses,  Creamy ladies' tresses,  Western ladies tresses
native
Perennial herb

ORCHIDACEAE

Spiranthes romanzoffiana var. porrifolia
© 2016 Steve Matson
Spiranthes romanzoffiana var. porrifolia
© 2016 Steve Matson
Spiranthes romanzoffiana var. porrifolia
© 2019 Julie Kierstead Nelson

Stachys ajugoides var. rigida    Mexican hedgenettle
native
Perennial herb

LAMIACEAE

Stachys ajugoides var. rigida
© 2023 Mary Ann Machi
Stachys ajugoides var. rigida
© 2016 Steve Matson
Stachys ajugoides var. rigida
© 2016 Steve Matson

Stachys pycnantha    Short spike hedge nettle,  Shortspike hedgenettle
native
Perennial herb

LAMIACEAE

Stachys pycnantha
© 2023 David Wolfson
Stachys pycnantha
© 2019 David Wolfson
Stachys pycnantha
© 2021 Dan Quinn

Stachys rigida ssp. quercetorum    Rough hedgenettle
native
Perennial herb

LAMIACEAE

Stachys rigida ssp. quercetorum
© 2019 Ken Lunders
Stachys rigida ssp. quercetorum
© 2016 Ron Vanderhoff
Stachys rigida ssp. quercetorum
© 2023 Ron Vanderhoff

Stebbinsoseris heterocarpa    Grassland stebbinsoseris
native
Annual herb

ASTERACEAE

Stebbinsoseris heterocarpa
© 2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
© 2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
© 2017 Diane Etchison

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria media
© 2018 Gary McDonald
Stellaria media
© 2018 Gary McDonald
Stellaria media
© 2015 Diane Etchison

Stellaria nitens    Shining chickweed,  Shiny chickweed,  Smooth chickweed
native
Annual herb

CARYOPHYLLACEAE

Stellaria nitens
© 2022 Catherine Chang
Stellaria nitens
© 2022 Catherine Chang
Stellaria nitens
© 2020 Ken Hickman

Stephanomeria virgata    Rod wirelettuce,  Tall stephanomeria,  Twiggy wreath plant
native
Annual herb

ASTERACEAE

Stephanomeria virgata
© 2019 Steven M Norris
Stephanomeria virgata
© 2022 Helen Hancock
Stephanomeria virgata
© 2019 Steven M Norris

Stipa cernua    Nodding needle grass
native
Perennial grass

POACEAE

Stipa cernua
© 2018 Liz Block
Stipa cernua
© 2022 Ron Vanderhoff
Stipa cernua
© 2022 Dianne Lake

Stipa lepida    Foothill needle grass
native
Perennial grass

POACEAE

Stipa lepida
© 2017 Gary McDonald
Stipa lepida
© 2023 Ron Vanderhoff
Stipa lepida
© 2017 Gary McDonald

Stipa pulchra    Purple needle grass
native
Perennial grass

POACEAE

Stipa pulchra
© 2019 Michelle Karle
Stipa pulchra
© 2008 Zoya Akulova
Stipa pulchra
© 2019 Ron Vanderhoff

Streptanthus callistus    Mt. hamilton jewel flower,  Mt. hamilton jewelflower
rare native
Annual herb

BRASSICACEAE

Streptanthus callistus
© 2019 John Game
Streptanthus callistus
© 2011 Aaron Schusteff
Streptanthus callistus
© 2012 Aaron Schusteff

native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. glandulosus
© 2003 Keir Morse
Streptanthus glandulosus ssp. glandulosus
© 2020 Stacie Wolny
Streptanthus glandulosus ssp. glandulosus
© 2021 Bryant Baker

Stylocline filaginea    False neststraw,  Woolly fishhooks
native
Annual herb

ASTERACEAE

Stylocline filaginea
© 2020 Matt Berger
Stylocline filaginea
© 2019 Gerald Carr
Stylocline filaginea
© 2021 Jacob Smith

Stylomecon heterophylla    Wind poppy
native
Annual herb

PAPAVERACEAE

Stylomecon heterophylla
© 2017 Gary McDonald
Stylomecon heterophylla
© 2021 Mike Russler
Stylomecon heterophylla
© 2020 Joe Engelbrecht

Symphoricarpos albus    Common snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos albus
© 2021 Suzanne L. Weakley
Symphoricarpos albus
© 2020 Bob Sweatt
Symphoricarpos albus
© 2007 Neal Kramer

Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos mollis
© 2019 Ron Vanderhoff
Symphoricarpos mollis
© 2020 Cara Wilcox
Symphoricarpos mollis
© 2019 Ron Vanderhoff

Symphoricarpos rivularis    Common snowberry,  Upright snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos rivularis
© 2020 Jacob Smith
Symphoricarpos rivularis
© 2020 Jacob Smith
Symphoricarpos rivularis
© 2021 Mike Russler

Taraxacum officinale    Common dandelion,  Dandelion,  Red seeded dandelion
invasive non-native
Perennial herb

ASTERACEAE

Taraxacum officinale
© 2021 Ron Vanderhoff
Taraxacum officinale
© 2019 Diane Etchison
Taraxacum officinale
© 2021 Ron Vanderhoff

Tauschia hartwegii    Hartweg's tauschia,  Hartweg's umbrellawort,  Tauschia
native
Perennial herb

APIACEAE

Tauschia hartwegii
© 2006 Steve Matson
Tauschia hartwegii
© 2006 Steve Matson
Tauschia hartwegii
© 2006 Steve Matson

Thalictrum fendleri var. polycarpum    Fendler's meadow rue,  Meadow rue,  Torrey's meadow rue
native
Perennial herb

RANUNCULACEAE

Thalictrum fendleri var. polycarpum
© 2017 Thomas Reyes
Thalictrum fendleri var. polycarpum
© 2019 Patrick Furtado
Thalictrum fendleri var. polycarpum
© 2020 Diane Etchison

Thalictrum polycarpum    Fendler's meadow rue,  Meadow rue,  Torrey's meadow rue
native
Perennial herb

RANUNCULACEAE

Thalictrum polycarpum
© 2017 Thomas Reyes
Thalictrum polycarpum
© 2019 Patrick Furtado
Thalictrum polycarpum
© 2020 Diane Etchison

Thysanocarpus curvipes    Fringe pod,  Fringed pod,  Hairy lacepod
native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes
© 2019 Steve Matson
Thysanocarpus curvipes
© 2014 Steve Matson
Thysanocarpus curvipes
© 2016 Steve Matson

Thysanocarpus curvipes var. elegans    Fringe pod,  Fringed pod,  Hairy lacepod
native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes var. elegans
© 2019 Steve Matson
Thysanocarpus curvipes var. elegans
© 2014 Steve Matson
Thysanocarpus curvipes var. elegans
© 2016 Steve Matson

Thysanocarpus laciniatus    Common lace pod,  Mountain fringepod,  Narrow leaved fringe pod
native
Annual herb

BRASSICACEAE

Thysanocarpus laciniatus
© 2021 Helen Hancock
Thysanocarpus laciniatus
© 2021 R.A. Chasey
Thysanocarpus laciniatus
© 2021 Helen Hancock

Thysanocarpus laciniatus var. crenatus    Common lace pod,  Mountain fringepod,  Narrow leaved fringe pod
native
Annual herb

BRASSICACEAE

Thysanocarpus laciniatus var. crenatus
© 2021 Helen Hancock
Thysanocarpus laciniatus var. crenatus
© 2021 R.A. Chasey
Thysanocarpus laciniatus var. crenatus
© 2021 Helen Hancock

Tillaea aquatica    Aquatic pygmy weed,  Pigmy weed,  Water pygmyweed
native
Annual herb

CRASSULACEAE

Tillaea aquatica
© 2019 Ron Vanderhoff
Tillaea aquatica
© 2022 Ken-ichi Ueda
Tillaea aquatica
© 2022 Catherine Chang

Tillaea erecta    Pigmy weed,  Sand pygmy weed,  Sand pygmyweed
native
Annual herb

CRASSULACEAE

Tillaea erecta
© 2020 Ron Vanderhoff
Tillaea erecta
© 2019 Ron Vanderhoff
Tillaea erecta
© 2019 Ron Vanderhoff

Tonella tenella    Lesser baby innocence,  Small flowered tonella
native
Annual herb

PLANTAGINACEAE

Tonella tenella
© 2021 Helen Hancock
Tonella tenella
© 2008 Steve Matson
Tonella tenella
© 2019 Belinda Lo

Torilis arvensis    Field hedge parsley,  Spreading hedgeparsley,  Tall Sock-Destroyer
invasive non-native
Annual herb

APIACEAE

Torilis arvensis
© 2019 Ron Vanderhoff
Torilis arvensis
© 2017 Gary McDonald
Torilis arvensis
© 2018 Lindsey Hack

Torilis nodosa    Hedge parsley,  Knotted hedge parsley,  Knotted hedgeparsley
non-native
Annual herb

APIACEAE

Torilis nodosa
© 2011 Steve Matson
Torilis nodosa
© 2011 Steve Matson
Torilis nodosa
© 2011 Steve Matson

Torreya californica    California nutmeg,  California torreya
native
Tree

TAXACEAE

Torreya californica
© 2022 SPI Botany
Torreya californica
© 2020 Ken Hickman
Torreya californica
© 2022 Jenell Jackson

Toxicodendron diversilobum    Poison oak,  Poisonoak,  Western Poison Oak
native
Vine, Shrub

ANACARDIACEAE

Toxicodendron diversilobum
© 2020 Ron Vanderhoff
Toxicodendron diversilobum
© 2019 Randy Huey
Toxicodendron diversilobum
© 2021 Bryant Baker

Tragopogon dubius    Goat's beard,  Yellow salsify
invasive non-native
Perennial herb

ASTERACEAE

Tragopogon dubius
© 2023 Ken Lunders
Tragopogon dubius
© 2020 Bob Sweatt
Tragopogon dubius
© 2019 Liz Block

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon porrifolius
© 2019 Julie dinsdale
Tragopogon porrifolius
© 2015 David Wolfson
Tragopogon porrifolius
© 2020 Martin Cooper

Trichostema lanceolatum    Vinegarweed
native
Annual herb

LAMIACEAE

Trichostema lanceolatum
© 2018 Ron Vanderhoff
Trichostema lanceolatum
© 2016 Nathan Mudry
Trichostema lanceolatum
© 2019 Aaron Echols

Trientalis latifolia    Pacific starflower
native
Perennial herb

MYRSINACEAE

Trientalis latifolia
© 2008 Steve Matson
Trientalis latifolia
© 2016 Steve Matson
Trientalis latifolia
© 2008 Steve Matson

Trifolium albopurpureum var. albopurpureum    Indian clover,  Rancheria clover
native
Annual herb

FABACEAE

Trifolium albopurpureum var. albopurpureum
© 2024 Steve Matson
Trifolium albopurpureum var. albopurpureum
© 2024 Steve Matson
Trifolium albopurpureum var. albopurpureum
© 2024 Steve Matson

Trifolium albopurpureum var. dichotomum    Branched indian clover
native
Annual herb

FABACEAE

Trifolium albopurpureum var. dichotomum
© 2023 Helen Hancock
Trifolium albopurpureum var. dichotomum
© 2022 Helen Hancock
Trifolium albopurpureum var. dichotomum
© 2023 Helen Hancock

native
Annual herb

FABACEAE

Trifolium albopurpureum var. olivaceum
© 2011 Jennifer Buck
Trifolium albopurpureum var. olivaceum
© 2015 Aaron Schusteff
Trifolium albopurpureum var. olivaceum
© 2023 Helen Hancock

Trifolium bifidum    Notch leaf clover,  Notchleaf clover,  Pinole clover
native
Annual herb

FABACEAE

Trifolium bifidum
© 2022 R.A. Chasey
Trifolium bifidum
© 2019 Alice Cummings
Trifolium bifidum
© 2022 R.A. Chasey

Trifolium ciliolatum    Foothill clover,  Tree clover
native
Annual herb

FABACEAE

Trifolium ciliolatum
© 2020 Diane Etchison
Trifolium ciliolatum
© 2015 Diane Etchison
Trifolium ciliolatum
© 2019 Ron Vanderhoff

Trifolium depauperatum var. depauperatum    Cowbag clover,  Dwarf bladder clover,  Dwarf sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum var. depauperatum
© 2021 Steve Matson
Trifolium depauperatum var. depauperatum
© 2021 Steve Matson
Trifolium depauperatum var. depauperatum
© 2021 Steve Matson

Trifolium depauperatum var. truncatum    Dwarf sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum var. truncatum
© 2021 Ron Vanderhoff
Trifolium depauperatum var. truncatum
© 2023 Steven Mills Glascock
Trifolium depauperatum var. truncatum
© 2021 Ron Vanderhoff

Trifolium dichotomum    Branched indian clover
native
Annual herb

FABACEAE

Trifolium dichotomum
© 2023 Helen Hancock
Trifolium dichotomum
© 2022 Helen Hancock
Trifolium dichotomum
© 2023 Helen Hancock

Trifolium gracilentum    Graceful clover,  Pin point clover,  Pinpoint clover
native
Annual herb

FABACEAE

Trifolium gracilentum
© 2016 Steve Matson
Trifolium gracilentum
© 2016 Steve Matson
Trifolium gracilentum
© 2016 Steve Matson

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson

Trifolium microcephalum    Hairy clover,  Small headed clover
native
Annual herb

FABACEAE

Trifolium microcephalum
© 2005 Steve Matson
Trifolium microcephalum
© 2016 Michael Mitchell
Trifolium microcephalum
© 2019 Ron Vanderhoff

Trifolium microdon    Thimble clover,  Valparaiso clover
native
Annual herb

FABACEAE

Trifolium microdon
© 2022 Dee Shea Himes
Trifolium microdon
© 2022 Dee Shea Himes
Trifolium microdon
© 2023 R.A. Chasey

Trifolium obtusiflorum    Clammy clover,  Creek clover
native
Annual herb

FABACEAE

Trifolium obtusiflorum
© 2019 Ron Vanderhoff
Trifolium obtusiflorum
© 2019 Ron Vanderhoff
Trifolium obtusiflorum
© 2019 Ron Vanderhoff

Trifolium oliganthum    Few flowered clover,  Fewflower clover,  Minitomcat clover
native
Annual herb

FABACEAE

Trifolium oliganthum
© 2023 Helen Hancock
Trifolium oliganthum
© 2022 Mary Merriman
Trifolium oliganthum
© 2023 R.A. Chasey

Trifolium olivaceum    Olive clover
native
Annual herb

FABACEAE

Trifolium olivaceum
© 2024 Dianne Lake
Trifolium olivaceum
© 2021 Dianne Lake
Trifolium olivaceum
© 2021 Dianne Lake

Trifolium repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens
© 2017 Gary McDonald
Trifolium repens
© 2007 Steve Matson
Trifolium repens
© 2017 Gary McDonald

Trifolium tridentatum    Tomcat clover
native
Annual herb

FABACEAE

Trifolium tridentatum
© 2024 Steve Conger
Trifolium tridentatum
© 2024 Steve Conger
Trifolium tridentatum
© 2018 Stacie Wolny

Trifolium variegatum    Variegated clover,  White tipped clover,  Whitetip clover
native
Annual herb

FABACEAE

Trifolium variegatum
© 2022 Steve Matson
Trifolium variegatum
© 2017 Michael Mitchell
Trifolium variegatum
© 2019 Diane Etchison

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2018 Stacie Wolny

Trillium chloropetalum    Common trillium,  Giant wakerobin,  Trillium
native
Perennial herb

MELANTHIACEAE

Trillium chloropetalum
© 2024 Karen Swift
Trillium chloropetalum
© 2024 Cynthia Powell
Trillium chloropetalum
© 2023 Hunter Breck

Trillium chloropetalum var. giganteum    Common trillium,  Giant wakerobin,  Trillium
native
Perennial herb

MELANTHIACEAE

Trillium chloropetalum var. giganteum
© 2024 Karen Swift
Trillium chloropetalum var. giganteum
© 2024 Cynthia Powell
Trillium chloropetalum var. giganteum
© 2023 Hunter Breck

Triphysaria eriantha    Butter 'n' eggs,  Johnny tuck,  Johnnytuck
native
Annual herb

OROBANCHACEAE

Triphysaria eriantha
© 2021 Steve Matson
Triphysaria eriantha
© 2021 Steve Matson
Triphysaria eriantha
© 2017 Dee Warenycia

Triphysaria pusilla    Dwarf owl's clover,  Little owl's clover
native
Annual herb

OROBANCHACEAE

Triphysaria pusilla
© 2018 Steve Matson
Triphysaria pusilla
© 2018 Steve Matson
Triphysaria pusilla
© 2018 Steve Matson

Trisetum canescens    Nodding oatgrass,  Nodding trisetum,  Tall trisetum
native
Perennial grass

POACEAE

Trisetum canescens
© 2020 John Rawlings
Trisetum canescens
© 2011 Steve Matson
Trisetum canescens
© 2022 Ellen Uhler

Trisetum cernuum ssp. canescens    Nodding oatgrass,  Nodding trisetum,  Tall trisetum
native
Perennial grass

POACEAE

Trisetum cernuum ssp. canescens
© 2020 John Rawlings
Trisetum cernuum ssp. canescens
© 2011 Steve Matson
Trisetum cernuum ssp. canescens
© 2022 Ellen Uhler

Triteleia hyacinthina    White brodiaea,  Wild hyacinth,  White Brodiaea, Fool's Onion
native
Perennial herb

THEMIDACEAE

Triteleia hyacinthina
© 2008 Steve Matson
Triteleia hyacinthina
© 2008 Steve Matson
Triteleia hyacinthina
© 2008 Steve Matson

Triteleia laxa    Ithuriel's spear
native
Perennial herb

THEMIDACEAE

Triteleia laxa
© 2018 Gary McDonald
Triteleia laxa
© 2018 Tim Lewis
Triteleia laxa
© 2019 Matt Berger

Tropidocarpum gracile    Dobie pod,  Slender keel fruit,  Slender tropidocarpum
native
Annual herb

BRASSICACEAE

Tropidocarpum gracile
© 2014 Steve Matson
Tropidocarpum gracile
© 2014 Steve Matson
Tropidocarpum gracile
© 2014 Steve Matson

Typha domingensis    Narrowleaf cattail,  Southern cattail
native
Perennial herb

TYPHACEAE

Typha domingensis
© 2020 Ron Vanderhoff
Typha domingensis
© 2020 Ron Vanderhoff
Typha domingensis
© 2023 Ron Vanderhoff

Typha latifolia    Broadleaf cattail,  Common cattail,  Soft flag
native
Perennial herb (aquatic)

TYPHACEAE

Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson

Ulmus parvifolia    Chinese elm,  Siberian elm
non-native
Tree

ULMACEAE

Ulmus parvifolia
© 2021 Ron Vanderhoff
Ulmus parvifolia
© 2020 Ron Vanderhoff
Ulmus parvifolia
© 2019 Ron Vanderhoff

Umbellularia californica    Bay laurel,  California bay,  California laurel, bay tree
native
Tree

LAURACEAE

Umbellularia californica
© 2023 Mary Ann Machi
Umbellularia californica
© 2016 Steve Matson
Umbellularia californica
© 2023 Mary Ann Machi

Uropappus lindleyi    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

Uropappus lindleyi
© 2019 Zack Abbey
Uropappus lindleyi
© 2019 Ron Vanderhoff
Uropappus lindleyi
© 2016 Ron Vanderhoff

Urtica dioica ssp. holosericea    Giant creek nettle,  Hoary nettle,  Mountain nettle
native
Perennial herb

URTICACEAE

Urtica dioica ssp. holosericea
© 2014 Steve Matson
Urtica dioica ssp. holosericea
© 2014 Steve Matson
Urtica dioica ssp. holosericea
© 2014 Steve Matson

Urtica holosericea    Giant creek nettle,  Hoary nettle,  Mountain nettle
native
Perennial herb

URTICACEAE

Urtica holosericea
© 2014 Steve Matson
Urtica holosericea
© 2014 Steve Matson
Urtica holosericea
© 2014 Steve Matson

Urtica urens    Annual stinging nettle,  Dwarf nettle
non-native
Annual herb

URTICACEAE

Urtica urens
© 2019 Gary McDonald
Urtica urens
© 2018 Ron Vanderhoff
Urtica urens
© 2018 Ron Vanderhoff

non-native
Annual herb

CARYOPHYLLACEAE

Velezia rigida
© 2020 Ken Hickman
Velezia rigida
© 2020 Ken Hickman
Velezia rigida
© 2020 Ken Hickman

Verbascum thapsus    Common mullein,  Woolly mullein
invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbascum thapsus
© 2021 R.A. Chasey
Verbascum thapsus
© 2020 Kim Cabrera
Verbascum thapsus
© 2019 Marisa Persaud

Verbena lasiostachys var. lasiostachys    Vervain,  Western vervain
native
Perennial herb

VERBENACEAE

Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson

native
Perennial herb

VERBENACEAE

Verbena lasiostachys var. scabrida
© 2021 R.A. Chasey
Verbena lasiostachys var. scabrida
© 2023 Ron Vanderhoff
Verbena lasiostachys var. scabrida
© 2020 Ron Vanderhoff

Verbena robusta    Robust vervain
native
Perennial herb

VERBENACEAE

Verbena robusta
© 2021 R.A. Chasey
Verbena robusta
© 2023 Ron Vanderhoff
Verbena robusta
© 2020 Ron Vanderhoff

Veronica anagallis-aquatica    Water speedwell
non-native
Perennial herb

PLANTAGINACEAE

Veronica anagallis-aquatica
© 2015 Steve Matson
Veronica anagallis-aquatica
© 2015 Steve Matson
Veronica anagallis-aquatica
© 2022 Bob Sweatt

Veronica arvensis    Corn speedwell,  Speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica arvensis
© 2006 Steve Matson
Veronica arvensis
© 2006 Steve Matson
Veronica arvensis
© 2020 mike andrews

Veronica persica    Bird's eye speedwell,  Birdeye speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica persica
© 2019 Patrick Furtado
Veronica persica
© 2022 Bob Sweatt
Veronica persica
© 2022 Ron Vanderhoff

Vicia dasycarpa    Smooth vetch,  Thick fruited vetch,  Winter vetch
non-native
Annual herb, Vine

FABACEAE

Vicia dasycarpa
© 2006 Steve Matson
Vicia dasycarpa
© 2017 Gary McDonald
Vicia dasycarpa
© 2017 Gary McDonald

Vicia sativa    Spring vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa
© 2022 David Wolfson
Vicia sativa
© 2019 Cynthia Powell
Vicia sativa
© 2023 Ron Vanderhoff

Vicia villosa ssp. varia    Smooth vetch,  Thick fruited vetch,  Winter vetch
non-native
Annual herb, Vine

FABACEAE

Vicia villosa ssp. varia
© 2006 Steve Matson
Vicia villosa ssp. varia
© 2017 Gary McDonald
Vicia villosa ssp. varia
© 2017 Gary McDonald

Vinca major    Bigleaf periwinkle,  Greater periwinkle,  Vinca
invasive non-native
Perennial herb

APOCYNACEAE

Vinca major
© 2020 Julia Markey
Vinca major
© 2022 Ron Vanderhoff
Vinca major
© 2021 Ron Vanderhoff

Viola douglasii    Douglas' golden violet,  Douglas' violet
native
Perennial herb

VIOLACEAE

Viola douglasii
© 2006 Steve Matson
Viola douglasii
© 2006 Steve Matson
Viola douglasii
© 2006 Steve Matson

Viola ocellata    Pinto violet,  Twoeyed violet,  Western heart's ease
native
Perennial herb

VIOLACEAE

Viola ocellata
© 2020 Amy Rapport
Viola ocellata
© 2008 Steve Matson
Viola ocellata
© 2018 Stacie Wolny

Viola pedunculata    California golden violet,  Johnny jump up
native
Perennial herb

VIOLACEAE

Viola pedunculata
© 2014 Steve Matson
Viola pedunculata
© 2014 Steve Matson
Viola pedunculata
© 2014 Steve Matson

Viola purpurea ssp. quercetorum    Goosefoot violet,  Goosefoot yellow violet
native
Perennial herb

VIOLACEAE

Viola purpurea ssp. quercetorum
© 2016 Steve Matson
Viola purpurea ssp. quercetorum
© 2016 Steve Matson
Viola purpurea ssp. quercetorum
© 2016 Steve Matson

Viola quercetorum    Goosefoot violet,  Goosefoot yellow violet
native
Perennial herb

VIOLACEAE

Viola quercetorum
© 2016 Steve Matson
Viola quercetorum
© 2016 Steve Matson
Viola quercetorum
© 2016 Steve Matson

Vulpia bromoides    Brome fescue
non-native
Annual grass

POACEAE

Vulpia bromoides
© 2022 Diana Wahl
Vulpia bromoides
© 2021 Toni Corelli
Vulpia bromoides
© 2021 David popp

native
Annual grass

POACEAE

Vulpia microstachys var. ciliata
© 2011 Steve Matson
Vulpia microstachys var. ciliata
© 2024 Emily R. Allen
Vulpia microstachys var. ciliata
© 2011 Steve Matson

native
Annual grass

POACEAE

Vulpia microstachys var. pauciflora
© 2011 Steve Matson
Vulpia microstachys var. pauciflora
© 2024 Emily R. Allen
Vulpia microstachys var. pauciflora
© 2011 Steve Matson

Vulpia myuros var. hirsuta    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Vulpia myuros var. hirsuta
© 2021 Aaron Echols
Vulpia myuros var. hirsuta
© 2021 Ron Vanderhoff
Vulpia myuros var. hirsuta
© 2022 John Rawlings

Vulpia myuros var. myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Vulpia myuros var. myuros
© 2021 Aaron Echols
Vulpia myuros var. myuros
© 2021 Ron Vanderhoff
Vulpia myuros var. myuros
© 2022 John Rawlings

Woodwardia fimbriata    Chain fern,  Giant chain fern,  Giant chainfern
native
Fern

BLECHNACEAE

Woodwardia fimbriata
© 2019 Julie Kierstead Nelson
Woodwardia fimbriata
© 2020 R.A. Chasey
Woodwardia fimbriata
© 2020 Julie A. Kierstead

Wyethia helenioides    Gray mule ears,  Whitehead mule ears,  Whitehead wyethia
native
Perennial herb

ASTERACEAE

Wyethia helenioides
© 2017 Marie Reil
Wyethia helenioides
© 2018 Bill Schmidt
Wyethia helenioides
© 2022 Mike Russler

Xanthium spinosum    Spiny clotbur,  Spiny cockleburr
non-native
Annual herb

ASTERACEAE

Xanthium spinosum
© 2017 B.J. Dion
Xanthium spinosum
© 2021 Lynn Overtree
Xanthium spinosum
© 2017 B.J. Dion

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

Xanthium strumarium
© 2011 Steve Matson
Xanthium strumarium
© 2011 Steve Matson
Xanthium strumarium
© 2011 Steve Matson

Yabea microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

Yabea microcarpa
© 2021 Helen Hancock
Yabea microcarpa
© 2022 R.A. Chasey
Yabea microcarpa
© 2012 Toni Corelli

Zauschneria californica    California fuchsia,  Hummingbird trumpet,  zauschneria
native
Perennial herb

ONAGRACEAE

Zauschneria californica
© 2018 Ron Vanderhoff
Zauschneria californica
© 2015 Gerald Carr
Zauschneria californica
© 2015 Gerald Carr

Zigadenus fremontii    Fremont's star lily,  Fremont's death camas
native
Perennial herb

MELANTHIACEAE

Zigadenus fremontii
© 2024 Carissa Brands
Zigadenus fremontii
© 2024 Mary Conway
Zigadenus fremontii
© 2024 Lynn Overtree

Zigadenus venenosus    Meadow deathcamas
native
Perennial herb

MELANTHIACEAE

Zigadenus venenosus
© 2022 Steve Matson
Zigadenus venenosus
© 2016 Steve Matson
Zigadenus venenosus
© 2016 Steve Matson