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logo Calflora  Illustrated Plant List 
Torrey Pines SNR
San Diego County

Brothers, 1998  / California State Parks  (1998-01-01)

Record Detail Nearby Surveys What Grows Here?
445 PLANTS
Abronia maritima    Red sand verbena,  Sticky sand verbena
rare native
Perennial herb

NYCTAGINACEAE

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

Abronia umbellata ssp. umbellata    Beach sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia umbellata ssp. umbellata
© 2014 Steve Matson
Abronia umbellata ssp. umbellata
© 2014 Steve Matson
Abronia umbellata ssp. umbellata
© 2014 Steve Matson

Acacia koa    Koa
non-native
Tree

FABACEAE


Acacia longifolia    Sydney golden wattle
non-native
Tree

FABACEAE

Acacia longifolia
© 2023 Asa B Spade
Acacia longifolia
© 2023 Asa B Spade
Acacia longifolia
© 2018 Ron Vanderhoff

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

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

Achnatherum coronatum    Crested needle grass
native
Perennial grass

POACEAE

Achnatherum coronatum
© 2024 Ron Vanderhoff
Achnatherum coronatum
© 2024 Alisa Flint
Achnatherum coronatum
© 2019 Rachelle Gray

Acourtia microcephala    Sacapellote
native
Perennial herb

ASTERACEAE

Acourtia microcephala
© 2022 Diane Etchison
Acourtia microcephala
© 2019 Ron Vanderhoff
Acourtia microcephala
© 2021 Aaron Echols

native
Tree, Shrub

ROSACEAE

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

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

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

Agave shawii    Coastal agave,  Shaw's agave
native
Shrub

AGAVACEAE

Agave shawii
© 2011 Keir Morse
Agave shawii
© 2022 Olga Batalov
Agave shawii
© 2011 Keir Morse

Allium haematochiton    Red skinned onion,  Redskin onion
native
Perennial herb (bulb)

ALLIACEAE

Allium haematochiton
© 2017 Steve Matson
Allium haematochiton
© 2017 Steve Matson
Allium haematochiton
© 2017 Steve Matson

Amblyopappus pusillus    Amblyopappus,  Dwarf coastweed,  Pineapple weed
native
Annual herb

ASTERACEAE

Amblyopappus pusillus
© 2006 Steve Matson
Amblyopappus pusillus
© 2006 Steve Matson
Amblyopappus pusillus
© 2006 Steve Matson

Ambrosia chamissonis    Beach bur,  Silver beachweed
native
Perennial herb

ASTERACEAE

Ambrosia chamissonis
© 2016 Steve Matson
Ambrosia chamissonis
© 2016 Steve Matson
Ambrosia chamissonis
© 2017 Ron Vanderhoff

Ambrosia psilostachya    Ragweed,  Western ragweed
native
Perennial herb

ASTERACEAE

Ambrosia psilostachya
© 2021 Mary Ann Machi
Ambrosia psilostachya
© 2022 Ron Vanderhoff
Ambrosia psilostachya
© 2022 Ron Vanderhoff

Amorpha fruticosa    Desert indigobush,  Western false indigo
native
Shrub

FABACEAE

Amorpha fruticosa
© 2020 Ron Vanderhoff
Amorpha fruticosa
© 2008 Gerald Carr
Amorpha fruticosa
© 2018 Ron Vanderhoff

Amsinckia eastwoodiae    Eastwood's fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia eastwoodiae
© 2019 Susan McDougall
Amsinckia eastwoodiae
© 2021 R.A. Chasey
Amsinckia eastwoodiae
© 2019 Susan McDougall

Amsinckia menziesii var. intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

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

Amsinckia spectabilis    Seaside amsinckia,  Seaside fiddleneck,  Woolly breeches
native
Annual herb

BORAGINACEAE

Amsinckia spectabilis
© 2017 David Greenberger
Amsinckia spectabilis
© 2023 Toni Corelli
Amsinckia spectabilis
© 2023 Toni Corelli

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
© 2017 B.J. Dion
Anagallis arvensis
© 2018 Stacie Wolny
Anagallis arvensis
© 2017 B.J. Dion

Anemopsis californica    Yerba mansa
native
Perennial herb

SAURURACEAE

Anemopsis californica
© 2022 Steve Matson
Anemopsis californica
© 2022 Steve Matson
Anemopsis californica
© 2022 Steve Matson

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

Antirrhinum coulterianum    Coulter snapdragon,  Coulter's snapdragon
native
Annual herb

PLANTAGINACEAE

Antirrhinum coulterianum
© 2019 Lynn Sweet
Antirrhinum coulterianum
© 2019 Aaron Echols
Antirrhinum coulterianum
© 2019 Hailey Laskey

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

PLANTAGINACEAE

Antirrhinum kelloggii
© 2023 Ron Vanderhoff
Antirrhinum kelloggii
© 2019 David Greenberger
Antirrhinum kelloggii
© 2019 Ron Vanderhoff

Antirrhinum nuttallianum    Island snapdragon,  Nuttall's snapdragon
native
Annual, Perennial herb

PLANTAGINACEAE

Antirrhinum nuttallianum
© 2023 Caitlin Kreutz
Antirrhinum nuttallianum
© 2021 Ron Vanderhoff
Antirrhinum nuttallianum
© 2023 Caitlin Kreutz

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

ROSACEAE

Aphanes occidentalis
© 2024 Mike Russler
Aphanes occidentalis
© 2025 Ron Vanderhoff
Aphanes occidentalis
© 2024 Mike Russler

Aphanisma blitoides    Aphanisma
rare native
Annual herb

CHENOPODIACEAE

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

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

APIACEAE

Apiastrum angustifolium
© 2020 Ron Vanderhoff
Apiastrum angustifolium
© 2020 Ron Vanderhoff
Apiastrum angustifolium
© 2023 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

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

ERICACEAE

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

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 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

Artemisia palmeri    San diego sagewort
rare native
Shrub

ASTERACEAE

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

Arundo donax    Giant reed
invasive non-native
Perennial grass

POACEAE

Arundo donax
© 2013 Miriam Sachs Martin
Arundo donax
© 2020 Jennifer Mo
Arundo donax
© 2018 Ron Vanderhoff

Asphodelus fistulosus    Asphodel,  Onionweed
invasive non-native
Perennial herb

ASPHODELACEAE

Asphodelus fistulosus
© 2017 Steve Matson
Asphodelus fistulosus
© 2017 Steve Matson
Asphodelus fistulosus
© 2019 Ron Vanderhoff

Aster subulatus var. ligulatus    Eastern annual saltmarsh aster
native
Annual herb

ASTERACEAE

Aster subulatus var. ligulatus
© 2019 Ron Vanderhoff
Aster subulatus var. ligulatus
© 2018 Ron Vanderhoff
Aster subulatus var. ligulatus
© 2018 Ron Vanderhoff

Astragalus didymocarpus var. didymocarpus    Common dwarf milkvetch,  Dwarf white milkvetch,  Two seeded milk vetch
native
Annual herb

FABACEAE

Astragalus didymocarpus var. didymocarpus
© 2016 Steve Matson
Astragalus didymocarpus var. didymocarpus
© 2016 Steve Matson
Astragalus didymocarpus var. didymocarpus
© 2016 Steve Matson

Astragalus trichopodus var. lonchus    Santa barbara milk vetch,  Santa barbara milkvetch,  Southern california milkvetch
native
Perennial herb

FABACEAE

Astragalus trichopodus var. lonchus
© 2020 Ron Vanderhoff
Astragalus trichopodus var. lonchus
© 2024 Ron Vanderhoff
Astragalus trichopodus var. lonchus
© 2022 Ron Vanderhoff

Atriplex californica    California orach
native
Perennial herb

CHENOPODIACEAE

Atriplex californica
© 2020 Ron Vanderhoff
Atriplex californica
© 2020 Ron Vanderhoff
Atriplex californica
© 2020 Ron Vanderhoff

Atriplex canescens ssp. canescens    Fourwing saltbush
native
Shrub

CHENOPODIACEAE

Atriplex canescens ssp. canescens
© 2017 Ron Vanderhoff
Atriplex canescens ssp. canescens
© 2020 Ron Vanderhoff
Atriplex canescens ssp. canescens
© 2019 Kevin Woolen

native
Shrub

CHENOPODIACEAE

Atriplex lentiformis ssp. lentiformis
© 2024 Ron Vanderhoff
Atriplex lentiformis ssp. lentiformis
© 2017 Ron Vanderhoff
Atriplex lentiformis ssp. lentiformis
© 2019 Diane Etchison

Atriplex leucophylla    Beach salt bush,  Beach saltbush,  Sea scale
native
Perennial herb

CHENOPODIACEAE

Atriplex leucophylla
© 2009 Toni Corelli
Atriplex leucophylla
© 2024 R.A. Chasey
Atriplex leucophylla
© 2020 Ken Hickman

Atriplex semibaccata    Australian saltbush
invasive non-native
Perennial herb

CHENOPODIACEAE

Atriplex semibaccata
© 2015 James Bailey
Atriplex semibaccata
© 2021 David Wolfson
Atriplex semibaccata
© 2020 Ron Vanderhoff

Atriplex triangularis    Fat-hen
non-native
Annual herb

CHENOPODIACEAE

Atriplex triangularis
© 2013 Michael Mitchell
Atriplex triangularis
© 2023 Ron Vanderhoff
Atriplex triangularis
© 2018 Ron Vanderhoff

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

Baccharis emoryi    Willow baccharis
native
Shrub

ASTERACEAE

Baccharis emoryi
© 2020 Ron Vanderhoff
Baccharis emoryi
© 2020 Ron Vanderhoff
Baccharis emoryi
© 2022 Ron Vanderhoff

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

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

ASTERACEAE

Baccharis salicifolia
© 2023 Julia Markey
Baccharis salicifolia
© 2024 Ron Vanderhoff
Baccharis salicifolia
© 2020 Aaron Echols

Baccharis sarothroides    Desertbroom baccharis
native
Shrub

ASTERACEAE

Baccharis sarothroides
© 2022 Ron Vanderhoff
Baccharis sarothroides
© 2022 Ron Vanderhoff
Baccharis sarothroides
© 2022 Ron Vanderhoff

Bassia hyssopifolia    Five horn bassia,  Fivehorn smotherweed
invasive non-native
Annual herb

CHENOPODIACEAE

Bassia hyssopifolia
© 2023 Ron Vanderhoff
Bassia hyssopifolia
© 2021 Ron Vanderhoff
Bassia hyssopifolia
© 2022 Bob Sweatt

Berberis nevinii    Nevin's barberry
rare native
Shrub

BERBERIDACEAE

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

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

CACTACEAE

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

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

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

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

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

Bromus carinatus    California brome
native
Perennial grass

POACEAE

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

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

POACEAE

Bromus diandrus
© Alize
Bromus diandrus
© 2021 Richard Spjut
Bromus diandrus
© 2024 David popp

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

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

Cakile edentula    American searocket,  Sea rocket
non-native
Annual herb

BRASSICACEAE

Cakile edentula
© 2021 Friends of Five Creeks volunteers
Cakile edentula
© 2006 Louis-M. Landry
Cakile edentula
© 2010 Louis-M. Landry

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
© 2021 Mary Ann Machi
Calandrinia ciliata
© 2024 Ron Vanderhoff
Calandrinia ciliata
© 2019 Ron Vanderhoff

Calandrinia maritima    Seaside calandrinia
rare native
Annual herb

MONTIACEAE

Calandrinia maritima
© 2019 Ron Vanderhoff
Calandrinia maritima
© 2019 Ron Vanderhoff
Calandrinia maritima
© 2019 Ron Vanderhoff

Calochortus splendens    Splendid mariposa lily
native
Perennial herb

LILIACEAE

Calochortus splendens
© 2019 Gordon Jenkins
Calochortus splendens
© 2024 Ken-ichi Ueda
Calochortus splendens
© 2021 Jerry Maryniuk

Calochortus weedii var. weedii    Weed's mariposa lily
native
Perennial herb

LILIACEAE

Calochortus weedii var. weedii
© 2022 Ron Vanderhoff
Calochortus weedii var. weedii
© 2020 Ron Vanderhoff
Calochortus weedii var. weedii
© 2018 Diane Etchison

Calyptridium monandrum    Common pussypaws,  Pussy paws
native
Annual herb

MONTIACEAE

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

Calystegia macrostegia ssp. intermedia    Island false bindweed,  South coast morning glory
native
Perennial herb, Vine

CONVOLVULACEAE

Calystegia macrostegia ssp. intermedia
© 2020 Diane Etchison
Calystegia macrostegia ssp. intermedia
© 2022 R.A. Chasey
Calystegia macrostegia ssp. intermedia
© 2023 Mel Letterman

Calystegia macrostegia ssp. tenuifolia    Island false bindweed,  San diego morning glory
native
Perennial herb, Vine

CONVOLVULACEAE

Calystegia macrostegia ssp. tenuifolia
© 2019 Diane Etchison
Calystegia macrostegia ssp. tenuifolia
© 2019 Diane Etchison
Calystegia macrostegia ssp. tenuifolia
© 2019 Diane Etchison

Camissonia bistorta    California sun cup
native
Annual herb

ONAGRACEAE

Camissonia bistorta
© 2019 Ron Vanderhoff
Camissonia bistorta
© 2023 Ron Vanderhoff
Camissonia bistorta
© 2019 Ken Hickman

Camissonia californica    California primrose
native
Annual herb

ONAGRACEAE

Camissonia californica
© 2019 Elexis Padron
Camissonia californica
© 2019 Ron Vanderhoff
Camissonia californica
© 2019 Elexis Padron

Camissonia cheiranthifolia ssp. suffruticosa    Shrubby beach primrose
native
Perennial herb

ONAGRACEAE

Camissonia cheiranthifolia ssp. suffruticosa
© 2024 Mike Russler
Camissonia cheiranthifolia ssp. suffruticosa
© 2017 Steve Matson
Camissonia cheiranthifolia ssp. suffruticosa
© 2017 Steve Matson

Camissonia micrantha    Spencer primrose
native
Annual herb

ONAGRACEAE

Camissonia micrantha
© 2024 Mike Russler
Camissonia micrantha
© 2021 Cara Wilcox
Camissonia micrantha
© 2023 Ron Vanderhoff

Cannabis sativa    Herb,  Marijuana
non-native
Annual herb

CANNABACEAE

Cannabis sativa
© 2005 Louis-M. Landry
Cannabis sativa
© 2017 Barry Rice
Cannabis sativa
© 2005 Louis-M. Landry

Cardamine californica var. californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

Cardionema ramosissimum    Sand mat,  Sandcarpet
native
Perennial herb

CARYOPHYLLACEAE

Cardionema ramosissimum
© 2023 Ron Vanderhoff
Cardionema ramosissimum
© 2015 Michael Mitchell
Cardionema ramosissimum
© 2019 John Rawlings

Carex triquetra    Triangular fruit sedge,  Triangularfruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex triquetra
© 2009 Adonis (Don) Tate
Carex triquetra
© 2015 Diane Etchison
Carex triquetra
© 2003 Steve Matson

Carpobrotus chilensis    Sea fig
invasive non-native
Perennial herb

AIZOACEAE

Carpobrotus chilensis
© 2018 Nicole Leatherman
Carpobrotus chilensis
© 2016 Steve Matson
Carpobrotus chilensis
© 2021 Cynthia Powell

Carpobrotus edulis    Hottentot fig,  Iceplant,  Sea fig
invasive non-native
Perennial herb

AIZOACEAE

Carpobrotus edulis
© 2021 Michelle Karle
Carpobrotus edulis
© 2017 Lisa Miller
Carpobrotus edulis
© 2018 Michael Chasse

Castilleja affinis ssp. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis ssp. affinis
© 2006 Steve Matson
Castilleja affinis ssp. affinis
© 2006 Steve Matson
Castilleja affinis ssp. affinis
© 2019 Ron Vanderhoff

Castilleja densiflora ssp. gracilis    Denseflower indian paintbrush,  Graceful owl's clover
native
Annual herb

OROBANCHACEAE

Castilleja densiflora ssp. gracilis
© 2022 Ron Vanderhoff
Castilleja densiflora ssp. gracilis
© 2022 Ron Vanderhoff
Castilleja densiflora ssp. gracilis
© 2022 Ron Vanderhoff

Castilleja exserta ssp. exserta    Exserted indian paintbrush,  Pale purple owlclover,  Purple owl's clover
native
Annual herb

OROBANCHACEAE

Castilleja exserta ssp. exserta
© 2020 David Greenberger
Castilleja exserta ssp. exserta
© 2019 Ron Vanderhoff
Castilleja exserta ssp. exserta
© 2023 Ron Vanderhoff

Castilleja foliolosa    Texas paintbrush,  Woolly indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja foliolosa
© 2018 Steve Matson
Castilleja foliolosa
© 2018 Steve Matson
Castilleja foliolosa
© 2019 Ron Vanderhoff

Caulanthus heterophyllus var. heterophyllus    San diego wild cabbage,  Slender pod jewelflower
native
Annual herb

BRASSICACEAE

Caulanthus heterophyllus var. heterophyllus
© 2023 Caitlin Kreutz
Caulanthus heterophyllus var. heterophyllus
© 2023 Morgan Stickrod
Caulanthus heterophyllus var. heterophyllus
© 2019 Ron Vanderhoff

Ceanothus tomentosus    Woolly leaf ceanothus,  Woolyleaf ceanothus
native
Shrub

RHAMNACEAE

Ceanothus tomentosus
© 2024 Mel Letterman
Ceanothus tomentosus
© 2022 Ron Vanderhoff
Ceanothus tomentosus
© 2019 Ron Vanderhoff

Ceanothus verrucosus    Barranca brush,  White coast ceanothus,  Wart-Stemmed Ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus verrucosus
© 2024 Karen Fraser
Ceanothus verrucosus
© 2019 Diane Etchison
Ceanothus verrucosus
© 2015 Ron Vanderhoff

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

Centaurium venustum    California Centaury, Charming Centaury
native
Annual herb

GENTIANACEAE

Centaurium venustum
© 2019 Diane Etchison
Centaurium venustum
© 2021 Bonnie Nickel
Centaurium venustum
© 2019 Diane Etchison

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

CARYOPHYLLACEAE

Cerastium glomeratum
© 2023 Ron Vanderhoff
Cerastium glomeratum
© 2023 Ron Vanderhoff
Cerastium glomeratum
© 2023 R.A. Chasey

Cercocarpus minutiflorus    Smooth mountain mahogany
native
Shrub

ROSACEAE

Cercocarpus minutiflorus
© 2012 Ron Vanderhoff
Cercocarpus minutiflorus
© 2020 Ron Vanderhoff
Cercocarpus minutiflorus
© 2020 Ron Vanderhoff

Chaenactis artemisiifolia    Artemisia leaved chaenactis,  White pincushion
native
Annual herb

ASTERACEAE

Chaenactis artemisiifolia
© 2022 Rosalind Helfand
Chaenactis artemisiifolia
© 2023 Julia Markey
Chaenactis artemisiifolia
© 2022 Ron Vanderhoff

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

ASTERACEAE

Chaenactis glabriuscula var. glabriuscula
© 2020 David Greenberger
Chaenactis glabriuscula var. glabriuscula
© 2024 Mike Russler
Chaenactis glabriuscula var. glabriuscula
© 2024 Mike Russler

Chamaesyce maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

Chamaesyce maculata
© 2019 B.J. Dion
Chamaesyce maculata
© 2019 B.J. Dion
Chamaesyce maculata
© 2022 Ron Vanderhoff

Chamaesyce polycarpa    Smallseed sandmat
native
Perennial herb

EUPHORBIACEAE

Chamaesyce polycarpa
© 2018 Ron Vanderhoff
Chamaesyce polycarpa
© 2010 Steve Matson
Chamaesyce polycarpa
© 2021 Les Vion

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 ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Chenopodium ambrosioides
© 2020 Ron Vanderhoff
Chenopodium ambrosioides
© 2018 Ron Vanderhoff
Chenopodium ambrosioides
© 2020 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
© 2022 Ron Vanderhoff
Chenopodium murale
© 2023 Keir Morse
Chenopodium murale
© 2020 Ron Vanderhoff

native
Perennial herb

AGAVACEAE

Chlorogalum parviflorum
© 2022 Scott Henry
Chlorogalum parviflorum
© 2014 Diane Etchison
Chlorogalum parviflorum
© 2014 Diane Etchison

Chorizanthe fimbriata var. fimbriata    Fringed spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe fimbriata var. fimbriata
© 2024 Ron Vanderhoff
Chorizanthe fimbriata var. fimbriata
© 2024 Ron Vanderhoff
Chorizanthe fimbriata var. fimbriata
© 2019 Ron Vanderhoff

Chorizanthe orcuttiana    Orcutt's spineflower,  San diego spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe orcuttiana
© 2015 David Varner
Chorizanthe orcuttiana
© 2015 Keir Morse
Chorizanthe orcuttiana
© 2009 Michelle Cloud-Hughes

Chorizanthe polygonoides var. longispina    Knotweed spineflower,  Long spined spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols
Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols
Chorizanthe polygonoides var. longispina
© 2023 Aaron Echols

Chorizanthe procumbens    Prostrate spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe procumbens
© 2019 Diane Etchison
Chorizanthe procumbens
© 2023 Ron Vanderhoff
Chorizanthe procumbens
© 2023 Ron Vanderhoff

Chorizanthe staticoides    Turkish rugging
native
Annual herb

POLYGONACEAE

Chorizanthe staticoides
© 2019 Ron Vanderhoff
Chorizanthe staticoides
© 2019 Bryant Baker
Chorizanthe staticoides
© 2019 Ron Vanderhoff

Chrysanthemum coronarium    Crown daisy
invasive non-native
Annual herb

ASTERACEAE

Chrysanthemum coronarium
© 2019 Nicole Leatherman
Chrysanthemum coronarium
© 2018 Rachelle Gray
Chrysanthemum coronarium
© 2022 Jennifer Mo

Cirsium occidentale var. californicum    Bigelow thistle,  California thistle,  Cobwebby thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. californicum
© 2021 Amber Bedgood
Cirsium occidentale var. californicum
© 2021 Mike Russler
Cirsium occidentale var. californicum
© 2013 James Gonsman

Cirsium occidentale var. occidentale    Cobweb thistle,  Cobwebby thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. occidentale
© 2022 Suzanne L. Weakley
Cirsium occidentale var. occidentale
© 2020 Coty Sifuentes-Winter
Cirsium occidentale var. occidentale
© 2019 Randy Huey

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
© 2016 Steve Matson
Clarkia purpurea ssp. quadrivulnera
© 2016 Steve Matson

Claytonia parviflora ssp. parviflora    Narrow leaved miner's lettuce,  Streambank springbeauty,  Utah miner s lettuce
native
Annual herb

MONTIACEAE

Claytonia parviflora ssp. parviflora
© 2022 Ron Vanderhoff
Claytonia parviflora ssp. parviflora
© 2017 Gary McDonald
Claytonia parviflora ssp. parviflora
© 2017 Gary McDonald

Claytonia perfoliata ssp. perfoliata    Claytonia,  Miner's lettuce
native
Annual herb

MONTIACEAE

Claytonia perfoliata ssp. perfoliata
© 2008 Steve Matson
Claytonia perfoliata ssp. perfoliata
© 2008 Steve Matson
Claytonia perfoliata ssp. perfoliata
© 2008 Steve Matson

Clematis pauciflora    Few flowered clematis,  Hill clematis,  Ropevine clematis
native
Perennial herb, Vine

RANUNCULACEAE

Clematis pauciflora
© 2015 Diane Etchison
Clematis pauciflora
© 2019 Ron Vanderhoff
Clematis pauciflora
© 2019 Diane Etchison

Cneoridium dumosum    Bush rue,  Bushrue
native
Shrub

RUTACEAE

Cneoridium dumosum
© 2023 Ron Vanderhoff
Cneoridium dumosum
© 2020 Ron Vanderhoff
Cneoridium dumosum
© 2013 Cynthia Keiser

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

Comarostaphyli diversifolia ssp. diversifolia    Small Tree-Mallow


Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
© 2024 Cynthia Powell
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

Conyza bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Conyza bonariensis
© 2021 Donald Burk
Conyza bonariensis
© 2017 Gary McDonald
Conyza bonariensis
© 2023 Ron Vanderhoff

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 ssp. setigerus    Bristly Bird's Beak
native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus rigidus ssp. setigerus
© 2023 Ron Vanderhoff
Cordylanthus rigidus ssp. setigerus
© 2021 Ron Vanderhoff
Cordylanthus rigidus ssp. setigerus
© 2023 R.A. Chasey

Coreopsis maritima    Sea dahlia
rare native
Perennial herb

ASTERACEAE

Coreopsis maritima
© 2024 Ron Vanderhoff
Coreopsis maritima
© 2019 Ron Vanderhoff
Coreopsis maritima
© 2019 Ron Vanderhoff

Cortaderia jubata    Pampas grass,  Purple pampas grass,  Pampasgrass
invasive non-native
Perennial grass

POACEAE

Cortaderia jubata
© 2018 Ramona Robison
Cortaderia jubata
© 2021 Michelle Karle
Cortaderia jubata
© 2022 Michelle Karle

Cotula australis    Australian brass buttons,  Australian cotula,  Australian waterbuttons
non-native
Annual herb

ASTERACEAE

Cotula australis
© 2023 Mike Russler
Cotula australis
© 2022 Ron Vanderhoff
Cotula australis
© 2023 Mike Russler

Cotula coronopifolia    Brass buttons,  Common brassbuttons
invasive non-native
Perennial herb

ASTERACEAE

Cotula coronopifolia
© 2022 Steve Matson
Cotula coronopifolia
© 2022 Steve Matson
Cotula coronopifolia
© 2018 Adam Chasey

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

CRASSULACEAE

Crassula connata
© 2019 Ron Vanderhoff
Crassula connata
© 2022 Sameer Saroa
Crassula connata
© 2019 Adam Chasey

Crassula multicava    Cape province pygmyweed
non-native
Perennial herb, Shrub

CRASSULACEAE

Crassula multicava
© 2017 James Bailey
Crassula multicava
© 2024 Mike Russler
Crassula multicava
© 2024 Mike Russler

Cressa truxillensis    Alkali weed,  Spreading alkaliweed
native
Perennial herb

CONVOLVULACEAE

Cressa truxillensis
© 2022 John Doyen
Cressa truxillensis
© 2022 John Doyen
Cressa truxillensis
© 2018 Ron Vanderhoff

Croton californicus    California croton,  Desert croton
native
Perennial herb

EUPHORBIACEAE

Croton californicus
© 2008 Steve Matson
Croton californicus
© 2008 Steve Matson
Croton californicus
© 2017 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

Cryptantha micromeres    Minute flowered cryptantha,  Pygmyflower cryptantha,  Small flowered cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha micromeres
© 2024 Joe Broberg
Cryptantha micromeres
© 2020 Ken Hickman
Cryptantha micromeres
© 2025 R.A. Chasey

Cucurbita foetidissima    Calabazilla,  Missouri gourd,  Mock orange
native
Perennial herb, Vine

CUCURBITACEAE

Cucurbita foetidissima
© 2014 Steve Matson
Cucurbita foetidissima
© 2014 Steve Matson
Cucurbita foetidissima
© 2021 Ron Vanderhoff

Cupressus macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

Cupressus macrocarpa
© 2017 Bryant Baker
Cupressus macrocarpa
© 2019 Patrick Furtado
Cupressus macrocarpa
© 2019 Cynthia Powell

Cuscuta californica var. californica    California dodder,  Chaparral dodder,  Short flowered dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta californica var. californica
© 2021 R.A. Chasey
Cuscuta californica var. californica
© 2021 Ron Vanderhoff
Cuscuta californica var. californica
© 2021 Ron Vanderhoff

Cuscuta salina    Saltmarsh dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta salina
© 2021 Ron Vanderhoff
Cuscuta salina
© 2021 Ron Vanderhoff
Cuscuta salina
© 2021 Ron Vanderhoff

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

Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

Cyperus eragrostis
© 2016 Joan Hampton
Cyperus eragrostis
© 2024 Ron Vanderhoff
Cyperus eragrostis
© 2024 Ron Vanderhoff

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

SOLANACEAE

Datura wrightii
© 2019 Bonnie Nickel
Datura wrightii
© 2019 Ron Vanderhoff
Datura wrightii
© 2019 Bonnie Nickel

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

Daucus pusillus
© 2019 Diane Etchison
Daucus pusillus
© 2022 David Wolfson
Daucus pusillus
© 2019 John Rawlings

Delphinium cardinale    Scarlet larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium cardinale
© 2019 Ron Vanderhoff
Delphinium cardinale
© 2019 Ron Vanderhoff
Delphinium cardinale
© 2019 Ron Vanderhoff

Delphinium parryi ssp. maritimum    Seaside larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. maritimum
© 2014 Steve Matson
Delphinium parryi ssp. maritimum
© 2014 Steve Matson
Delphinium parryi ssp. maritimum
© 2014 Steve Matson

Dendromecon rigida    Bush poppy,  Tree poppy
native
Shrub

PAPAVERACEAE

Dendromecon rigida
© 2024 Mike Russler
Dendromecon rigida
© 2024 Mike Russler
Dendromecon rigida
© 2020 Ron Vanderhoff

Descurainia pinnata ssp. halictorum    Alkali western tansy mustard,  Western tansymustard
native
Annual herb

BRASSICACEAE

Descurainia pinnata ssp. halictorum
© 2020 Debra Valov
Descurainia pinnata ssp. halictorum
© 2020 Debra Valov
Descurainia pinnata ssp. halictorum
© 2020 Debra Valov

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

Dichelostemma capitatum ssp. capitatum    Blue dicks,  Wild hyacinth
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum ssp. capitatum
© 2017 Alison Sheehey
Dichelostemma capitatum ssp. capitatum
© Geoff Burleigh
Dichelostemma capitatum ssp. capitatum
© 2015 Ken Lunders

Dichondra occidentalis    Western dichondra,  Western ponysfoot
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Dichondra occidentalis
© 2023 James Bailey
Dichondra occidentalis
© 2023 James Bailey
Dichondra occidentalis
© 2023 Ron Vanderhoff

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

POACEAE

Distichlis spicata
© 2020 Matt Berger
Distichlis spicata
© 2019 Ron Vanderhoff
Distichlis spicata
© 2018 Emily Allen

Dodecatheon clevelandii ssp. clevelandii    Cleveland's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii ssp. clevelandii
© 2019 Ron Vanderhoff
Dodecatheon clevelandii ssp. clevelandii
© 2015 Rob O'Keefe
Dodecatheon clevelandii ssp. clevelandii
© 2021 Ron Vanderhoff

Draba cuneifolia    Wedge leaved draba,  Wedgeleaf draba
native
Annual herb

BRASSICACEAE

Draba cuneifolia
© 2006 Steve Matson
Draba cuneifolia
© 2008 Steve Matson
Draba cuneifolia
© 2006 Steve Matson

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

DRYOPTERIDACEAE

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

Dudleya blochmaniae ssp. brevifolia    Short leaved dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya blochmaniae ssp. brevifolia
© 2023 Mike Russler
Dudleya blochmaniae ssp. brevifolia
© 2018 Kristen Nelson
Dudleya blochmaniae ssp. brevifolia
© 2023 Mike Russler

Dudleya edulis    Fingertips
native
Perennial herb

CRASSULACEAE

Dudleya edulis
© 2020 Ron Vanderhoff
Dudleya edulis
© 2018 Diane Etchison
Dudleya edulis
© 2009 Ron Vanderhoff

Dudleya lanceolata    Lanceleaf liveforever,  Southern california dudleya
native
Perennial herb

CRASSULACEAE

Dudleya lanceolata
© 2019 Ron Vanderhoff
Dudleya lanceolata
© 2020 Steven M Norris
Dudleya lanceolata
© 2020 Steven M Norris

Dudleya pulverulenta    Chalk dudleya
native
Perennial herb

CRASSULACEAE

Dudleya pulverulenta
© 2018 Ron Vanderhoff
Dudleya pulverulenta
© 2020 Julia Markey
Dudleya pulverulenta
© 2019 Diane Etchison

Dudleya variegata    Variegated dudleya,  Variegated liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya variegata
© 2019 Bonnie Nickel
Dudleya variegata
© 2019 Bonnie Nickel
Dudleya variegata
© 2020 Beth Mather

Ehrharta longiflora    Longflowered veldtgrass
invasive non-native
Annual grass

POACEAE

Ehrharta longiflora
© 2020 Angelique Herman
Ehrharta longiflora
© 2020 Angelique Herman
Ehrharta longiflora
© 2020 Angelique Herman

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

Encelia californica    Bush sunflower,  California brittlebush,  California encelia
native
Shrub

ASTERACEAE

Encelia californica
© 2017 Steve Matson
Encelia californica
© 2017 Steve Matson
Encelia californica
© 2017 Steve Matson

Encelia farinosa    Brittlebush,  Goldenhills,  Incienso
native
Shrub

ASTERACEAE

Encelia farinosa
© 2016 Steve Matson
Encelia farinosa
© 2016 Steve Matson
Encelia farinosa
© 2016 Steve Matson

Epilobium canum ssp. canum    California fuchsia,  Hummingbird trumpet
native
Perennial herb

ONAGRACEAE

Epilobium canum ssp. canum
© 2023 Ron Vanderhoff
Epilobium canum ssp. canum
© 2024 R.A. Chasey
Epilobium canum ssp. canum
© 2022 Ron Vanderhoff

Epilobium ciliatum ssp. ciliatum    Fringed willowherb,  Northern willow herb,  Willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum ssp. ciliatum
© 2014 Steve Matson
Epilobium ciliatum ssp. ciliatum
© 2014 Steve Matson
Epilobium ciliatum ssp. ciliatum
© 2014 Steve Matson

Eremocarpus setigerus    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

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

Eriastrum filifolium    Lavender eriastrum,  Lavender woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum filifolium
© 2017 Diane Etchison
Eriastrum filifolium
© 2013 Keir Morse
Eriastrum filifolium
© 2013 Keir Morse

Erigeron foliosus var. foliosus    Leafy fleabane,  Thread stemmed fleabane
native
Perennial herb, Shrub

ASTERACEAE

Erigeron foliosus var. foliosus
© 2023 Ron Vanderhoff
Erigeron foliosus var. foliosus
© 2024 Mike Russler
Erigeron foliosus var. foliosus
© 2022 Ron Vanderhoff

Eriodictyon crassifolium    Felt leaved yerba santa,  Thick leaved yerba santa,  Thickleaf yerba santa
native
Shrub

NAMACEAE

Eriodictyon crassifolium
© 2023 Julia Markey
Eriodictyon crassifolium
© 2020 Bonnie Nickel
Eriodictyon crassifolium
© 2021 Mary Herr

Eriogonum fasciculatum var. fasciculatum    California buckwheat,  Eastern mojave buckwheat
native
Shrub

POLYGONACEAE

Eriogonum fasciculatum var. fasciculatum
© 2019 Ron Vanderhoff
Eriogonum fasciculatum var. fasciculatum
© 2019 Ron Vanderhoff
Eriogonum fasciculatum var. fasciculatum
© 2024 Erin Bergman

Eriogonum gracile var. gracile    Slender buckwheat,  Slender woolly buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum gracile var. gracile
© 2021 Mike Russler
Eriogonum gracile var. gracile
© 2022 Ron Vanderhoff
Eriogonum gracile var. gracile
© 2023 Ron Vanderhoff

Eriogonum parvifolium    Dune eriogonum,  Sea cliff buckwheat,  Seacliff buckwheat
native
Shrub

POLYGONACEAE

Eriogonum parvifolium
© 2022 Mary Conway
Eriogonum parvifolium
© 2020 Ron Vanderhoff
Eriogonum parvifolium
© 2021 Ron Vanderhoff

Eriophyllum confertiflorum var. confertiflorum    Golden yarrow,  Yellow yarrow
native
Shrub

ASTERACEAE

Eriophyllum confertiflorum var. confertiflorum
© 2023 Ryan O'Dell
Eriophyllum confertiflorum var. confertiflorum
© 2013 James Gonsman
Eriophyllum confertiflorum var. confertiflorum
© 2020 Ron Vanderhoff

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 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

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
© 2018 Janith Johnson
Erysimum capitatum
© 2023 Julia Markey
Erysimum capitatum
© 2019 Mary Conway

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

Eucalyptus globulus    Blue gum,  Tasmanian bluegum
invasive non-native
Tree

MYRTACEAE

Eucalyptus globulus
© 2022 Ron Vanderhoff
Eucalyptus globulus
© 2022 Ron Vanderhoff
Eucalyptus globulus
© 2022 Ron Vanderhoff

Eucrypta chrysanthemifoli var. chrysanthemifolia    Small Tree-Mallow


Euphorbia misera    Cliff spurge
rare native
Shrub

EUPHORBIACEAE

Euphorbia misera
© 2020 Ron Vanderhoff
Euphorbia misera
© 2019 Ron Vanderhoff
Euphorbia misera
© 2019 Diane Etchison

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
© 2006 Steve Matson
Euphorbia peplus
© 2022 Alice Cummings
Euphorbia peplus
© 2018 MCOSD EDRR

Euphorbia spathulata    Reticulate seeded spurge,  Warty spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia spathulata
© 2008 Steve Matson
Euphorbia spathulata
© 2014 Steve Matson
Euphorbia spathulata
© 2014 Steve Matson

Ferocactus viridescens    San diego barrel cactus,  San diego barrelcactus
rare native
Shrub (stem succulent)

CACTACEAE

Ferocactus viridescens
© 2019 Ron Vanderhoff
Ferocactus viridescens
© 2012 Keir Morse
Ferocactus viridescens
© 2023 Olga Batalov

Festuca 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

Filago californica    California cottonrose
native
Annual herb

ASTERACEAE

Filago californica
© 2019 Steve Matson
Filago californica
© 2019 Steve Matson
Filago californica
© 2019 Steve Matson

Filago gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Filago gallica
© 2023 R.A. Chasey
Filago gallica
© 2024 Mike Russler
Filago gallica
© 2017 Barbara Boethling

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

APIACEAE

Foeniculum vulgare
© 2019 Ron Vanderhoff
Foeniculum vulgare
© 2023 Fred Roberts
Foeniculum vulgare
© 2022 Ryan O'Dell

Frankenia salina    Alkali heath,  Alkali seaheath,  Yerba reuma, alkali heath
native
Perennial herb

FRANKENIACEAE

Frankenia salina
© 2019 Patrick Furtado
Frankenia salina
© 2021 Cynthia Powell
Frankenia salina
© 2020 Ron Vanderhoff

Freesia refracta    Common freesia
non-native
Perennial herb

IRIDACEAE

Freesia refracta
© 2011 Eric Larson
Freesia refracta
© 2007 Luigi Rignanese
Freesia refracta
© 2007 Luigi Rignanese

Galium angustifolium ssp. angustifolium    Narrow leaved bedstraw,  Narrowleaf bedstraw
native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. angustifolium
© 2017 Steve Matson
Galium angustifolium ssp. angustifolium
© 2020 Ron Vanderhoff
Galium angustifolium ssp. angustifolium
© 2017 Steve Matson

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

RUBIACEAE

Galium aparine
© 2020 Ron Vanderhoff
Galium aparine
© 2023 Julia Markey
Galium aparine
© 2020 Ron Vanderhoff

Galium nuttallii ssp. nuttallii    Climbing bedstraw
native
Perennial herb

RUBIACEAE

Galium nuttallii ssp. nuttallii
© 2016 Ron Vanderhoff
Galium nuttallii ssp. nuttallii
© 2018 Ron Vanderhoff
Galium nuttallii ssp. nuttallii
© 2018 Ron Vanderhoff

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

RUBIACEAE

Galium porrigens var. porrigens
© 2022 Ron Vanderhoff
Galium porrigens var. porrigens
© 2022 Ron Vanderhoff
Galium porrigens var. porrigens
© 2022 Julia Larke

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 carolinianum    Carolina geranium
native
Annual herb

GERANIACEAE

Geranium carolinianum
© 2025 Ron Vanderhoff
Geranium carolinianum
© 2019 Ron Vanderhoff
Geranium carolinianum
© 2016 Steve Matson

Gilia angelensis    Chaparral gilia
native
Annual herb

POLEMONIACEAE

Gilia angelensis
© 2023 Ron Vanderhoff
Gilia angelensis
© 2021 Ron Vanderhoff
Gilia angelensis
© 2021 Ron Vanderhoff

Gnaphalium bicolor    Two-color rabbit-tobacco
native
Perennial herb

ASTERACEAE

Gnaphalium bicolor
© 2019 David Greenberger
Gnaphalium bicolor
© 2019 Ron Vanderhoff
Gnaphalium bicolor
© 2019 Ron Vanderhoff

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

native
Perennial herb

ASTERACEAE

Gnaphalium canescens ssp. beneolens
© 2021 BLM Redding Field Office
Gnaphalium canescens ssp. beneolens
© 2021 Mike Russler
Gnaphalium canescens ssp. beneolens
© 2021 R.A. Chasey

native
Perennial herb

ASTERACEAE

Gnaphalium canescens ssp. microcephalum
© 2020 Ron Vanderhoff
Gnaphalium canescens ssp. microcephalum
© 2022 David Strauch
Gnaphalium canescens ssp. microcephalum
© 2019 Ron Vanderhoff

Hazardia squarrosa var. grindelioides    Gum plant goldenbush,  Saw toothed goldenbush,  Sawtooth bristleweed
native
Shrub

ASTERACEAE

Hazardia squarrosa var. grindelioides
© 2019 Ron Vanderhoff
Hazardia squarrosa var. grindelioides
© 2023 Ron Vanderhoff
Hazardia squarrosa var. grindelioides
© 2022 Ron Vanderhoff

Hedypnois cretica    Crete weed
non-native
Annual herb

ASTERACEAE

Hedypnois cretica
© 2022 Steve Matson
Hedypnois cretica
© 2022 Steve Matson
Hedypnois cretica
© 2022 Steve Matson

Helianthemum scoparium    Peak Rushrose
native
Shrub

CISTACEAE

Helianthemum scoparium
© 2018 Amy Rapport
Helianthemum scoparium
© 2023 Ron Vanderhoff
Helianthemum scoparium
© 2024 Mike Russler

Helianthus annuus    Common sunflower,  Hairy leaved sunflower,  Sunflower
native
Annual herb

ASTERACEAE

Helianthus annuus
© 2021 Mike Russler
Helianthus annuus
© 2019 Bob Case
Helianthus annuus
© 2024 Mel Letterman

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

HELIOTROPIACEAE

Heliotropium curassavicum
© 2022 Mike Russler
Heliotropium curassavicum
© 2022 Fern Zalin Jones
Heliotropium curassavicum
© 2022 Mike Russler

Hemizonia fasciculata    Clustered tarweed
native
Annual herb

ASTERACEAE

Hemizonia fasciculata
© 2017 Steve Matson
Hemizonia fasciculata
© 2017 Steve Matson
Hemizonia fasciculata
© 2017 Steve Matson

Hesperocnide tenella    Western nettle,  Western stinging nettle,  Western stingingnettle
native
Annual herb

URTICACEAE

Hesperocnide tenella
© 2023 Ken-ichi Ueda
Hesperocnide tenella
© 2006 Steve Matson
Hesperocnide tenella
© 2020 Ken Hickman

Heteromeles arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

Heteromeles arbutifolia
© 2015 James Gonsman
Heteromeles arbutifolia
© 2017 Gary McDonald
Heteromeles arbutifolia
© 2022 John Doyen

Heterotheca grandiflora    Telegraph weed,  Telegraphweed
native
Annual, Perennial herb

ASTERACEAE

Heterotheca grandiflora
© 2021 Mike Russler
Heterotheca grandiflora
© 2021 Mike Russler
Heterotheca grandiflora
© 2023 Cat Chang

Heterotheca sessiliflora ssp. sessiliflora    Sessileflower false goldenaster
rare native
Perennial herb

ASTERACEAE

Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler
Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler
Heterotheca sessiliflora ssp. sessiliflora
© 2024 Mike Russler

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

Hordeum murinum ssp. glaucum    Blue foxtail,  Smooth barley
non-native
Annual grass

POACEAE

Hordeum murinum ssp. glaucum
© 2018 Gary McDonald
Hordeum murinum ssp. glaucum
© 2019 Gary McDonald
Hordeum murinum ssp. glaucum
© 2017 Gary McDonald

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

Horkelia cuneata ssp. cuneata    Wedge leaved horkelia
native
Perennial herb

ROSACEAE

Horkelia cuneata ssp. cuneata
© 2020 David Greenberger
Horkelia cuneata ssp. cuneata
© 2019 David Greenberger
Horkelia cuneata ssp. cuneata
© 2022 R.A. Chasey

Hoya carnosa    Porcelainflower
non-native
Perennial herb

ASCLEPIADACEAE


Hutchinsia procumbens    Prostrate hutchinsia
non-native

BRASSICACEAE

Hutchinsia procumbens
© 2010 Steve Matson
Hutchinsia procumbens
© 2010 Steve Matson
Hutchinsia procumbens
© 2010 Steve Matson

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

Isocoma menziesii var. menziesii    Menzies' goldenbush
native
Shrub

ASTERACEAE

Isocoma menziesii var. menziesii
© 2019 Ron Vanderhoff
Isocoma menziesii var. menziesii
© 2019 Diane Etchison
Isocoma menziesii var. menziesii
© 2019 Diane Etchison

Isocoma menziesii var. vernonioides    Coastal goldenbush,  Green leaved dune goldenbush,  Menzies' goldenbush
native
Shrub

ASTERACEAE

Isocoma menziesii var. vernonioides
© 2014 Steve Matson
Isocoma menziesii var. vernonioides
© 2014 Steve Matson
Isocoma menziesii var. vernonioides
© 2014 Steve Matson

Isomeris arborea    Bladderpod
native
Shrub

CLEOMACEAE

Isomeris arborea
© 2022 Steven M Norris
Isomeris arborea
© 2024 Ron Vanderhoff
Isomeris arborea
© 2025 Mike Russler

Iva axillaris ssp. robustior    Povertyweed
native
Perennial herb

ASTERACEAE

Iva axillaris ssp. robustior
© 2019 David Greenberger
Iva axillaris ssp. robustior
© 2023 R.A. Chasey
Iva axillaris ssp. robustior
© 2020 Sara Timby

Iva hayesiana    San diego marsh elder,  San diego povertyweed
rare native
Perennial herb

ASTERACEAE

Iva hayesiana
© 2015 John Rusk
Iva hayesiana
© 2012 Ron Vanderhoff
Iva hayesiana
© 2022 Ron Vanderhoff

Jaumea carnosa    Fleshy jaumea,  Marsh jaumea
native
Perennial herb

ASTERACEAE

Jaumea carnosa
© 2020 Ron Vanderhoff
Jaumea carnosa
© 2018 Angelique Herman
Jaumea carnosa
© 2020 R.A. Chasey

Jepsonia parryi    Parry's jepsonia
native
Perennial herb

SAXIFRAGACEAE

Jepsonia parryi
© 2009 Ron Vanderhoff
Jepsonia parryi
© 2012 Cynthia Keiser
Jepsonia parryi
© 2019 Ron Vanderhoff

Juncus acutus ssp. leopoldii    Leopold's rush,  Southwestern spiny rush,  Wire grass
rare native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus acutus ssp. leopoldii
© 2018 Ron Vanderhoff
Juncus acutus ssp. leopoldii
© 2019 Susan McDougall
Juncus acutus ssp. leopoldii
© 2021 Ron Vanderhoff

Juncus mexicanus    Mexican rush
native
Perennial grasslike herb

JUNCACEAE

Juncus mexicanus
© 2004 Steve Matson
Juncus mexicanus
© 2020 Mary Wloch
Juncus mexicanus
© 2019 Diane Etchison

Juncus rugulosus    Wrinkled rush
native
Perennial grasslike herb

JUNCACEAE

Juncus rugulosus
© 2005 Steve Matson
Juncus rugulosus
© 2017 Ron Vanderhoff
Juncus rugulosus
© 2020 Ron Vanderhoff

Keckiella cordifolia    Climbing penstemon,  Heart leaved keckiella,  Heartleaf keckiella
native
Shrub

PLANTAGINACEAE

Keckiella cordifolia
© 2020 Ron Vanderhoff
Keckiella cordifolia
© 2022 Bryant Baker
Keckiella cordifolia
© 2022 Bryant Baker

Kleinia repens    Small Tree-Mallow


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

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

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

Lampranthus coccineus    Redflush
non-native
Perennial herb

AIZOACEAE

Lampranthus coccineus
© 2005 Louis-M. Landry
Lampranthus coccineus
© 2005 Louis-M. Landry

Lastarriaea coriacea    Leather spineflower
native
Annual herb

POLYGONACEAE

Lastarriaea coriacea
© 2020 Ron Vanderhoff
Lastarriaea coriacea
© 2020 Ron Vanderhoff
Lastarriaea coriacea
© 2021 Jacob Smith

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 coronaria    Royal goldfields
native
Annual herb

ASTERACEAE

Lasthenia coronaria
© 2021 Aaron Echols
Lasthenia coronaria
© 2021 Aaron Echols
Lasthenia coronaria
© 2021 Aaron Echols

Lasthenia glabrata ssp. coulteri    Coulter goldfields,  Coulter's goldfields,  Goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff
Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff
Lasthenia glabrata ssp. coulteri
© 2023 Ron Vanderhoff

Lavatera assurgentiflora    Island mallow
native
Shrub

MALVACEAE

Lavatera assurgentiflora
© 2011 Dylan Neubauer
Lavatera assurgentiflora
© 2018 Ron Vanderhoff
Lavatera assurgentiflora
© 2014 Ron Vanderhoff

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

Layia platyglossa
© 2019 Steve Matson
Layia platyglossa
© 2019 Steve Matson
Layia platyglossa
© 2019 Steve Matson

Lepidium virginicum var. robinsonii    Robinson's pepper grass,  Robinson's pepperweed
rare native
Annual herb

BRASSICACEAE

Lepidium virginicum var. robinsonii
© 2022 Ron Vanderhoff
Lepidium virginicum var. robinsonii
© 2014 Keir Morse
Lepidium virginicum var. robinsonii
© 2014 Keir Morse

native
Perennial herb

ASTERACEAE

Lessingia filaginifolia var. filaginifolia
© 2022 Mike Russler
Lessingia filaginifolia var. filaginifolia
© 2018 Ron Vanderhoff
Lessingia filaginifolia var. filaginifolia
© 2023 Ron Vanderhoff

Leymus condensatus    Giant wild rye
native
Perennial grass

POACEAE

Leymus condensatus
© 2020 Ron Vanderhoff
Leymus condensatus
© 2024 Mel Letterman
Leymus condensatus
© 2020 Diane Etchison

Limonium californicum    California sealavender,  Marsh rosemary,  Sea lavender
native
Perennial herb

PLUMBAGINACEAE

Limonium californicum
© 2018 Saskia Raether
Limonium californicum
© 2024 R.A. Chasey
Limonium californicum
© 2017 MCOSD EDRR

Limonium perezii    Canarian sea lavender,  Perez's sealavender
non-native
Perennial herb

PLUMBAGINACEAE

Limonium perezii
© 2017 B.J. Dion
Limonium perezii
© 2023 Ron Vanderhoff
Limonium perezii
© 2023 Ron Vanderhoff

Linanthus dianthiflorus    Fringed linanthus
native
Annual herb

POLEMONIACEAE

Linanthus dianthiflorus
© 2022 Ron Vanderhoff
Linanthus dianthiflorus
© 2017 Diane Etchison
Linanthus dianthiflorus
© 2023 Ron Vanderhoff

Linaria canadensis    Canada toadflax
native
Annual, Biennial herb

PLANTAGINACEAE

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

Lithophragma affine    Common woodland star,  San Francisco woodland star
native
Perennial herb

SAXIFRAGACEAE

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

Lobularia maritima    Sweet alyssum
invasive non-native
Perennial herb

BRASSICACEAE

Lobularia maritima
© 2016 Michael Mitchell
Lobularia maritima
© 2016 Michael Mitchell
Lobularia maritima
© 2019 Patrick Furtado

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

POACEAE

Lolium perenne
© 2019 Ron Vanderhoff
Lolium perenne
© 2023 Ron Vanderhoff
Lolium perenne
© 2021 Ron Vanderhoff

Lomatium lucidum    Shiny biscuitroot,  Shiny lomatium
native
Perennial herb

APIACEAE

Lomatium lucidum
© 2019 Diane Etchison
Lomatium lucidum
© 2019 Diane Etchison
Lomatium lucidum
© 2015 Diane Etchison

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
© 2019 Diane Etchison

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 hamatus    Small flowered lotus
native
Annual herb

FABACEAE

Lotus hamatus
© 2016 Aaron Echols
Lotus hamatus
© 2016 James Bailey
Lotus hamatus
© 2019 Ron Vanderhoff

Lotus heermannii    Heermann's lotus
native
Perennial herb

FABACEAE

Lotus heermannii
© 2019 Diane Etchison
Lotus heermannii
© 2010 James M. Andre
Lotus heermannii
© 2022 Irene Rosen

Lotus nuttallianus    Nuttall's acmispon
rare native
Annual herb

FABACEAE

Lotus nuttallianus
© 2024 Ron Vanderhoff
Lotus nuttallianus
© 2024 Ron Vanderhoff
Lotus nuttallianus
© 2023 Eric Koberle

native
Annual herb

FABACEAE

Lotus salsuginosus var. salsuginosus
© 2020 Ron Vanderhoff
Lotus salsuginosus var. salsuginosus
© 2023 Ron Vanderhoff
Lotus salsuginosus var. salsuginosus
© 2020 Ron Vanderhoff

native
Perennial herb

FABACEAE

Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff
Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff
Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff

Lotus strigosus    Strigose lotus
native
Annual herb

FABACEAE

Lotus strigosus
© 2024 Mike Russler
Lotus strigosus
© 2023 Ron Vanderhoff
Lotus strigosus
© 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 concinnus    Bajada lupine,  Elegant lupine,  Scarlet lupine
native
Annual herb

FABACEAE

Lupinus concinnus
© 2022 Ron Vanderhoff
Lupinus concinnus
© 2019 Ron Vanderhoff
Lupinus concinnus
© 2017 B.J. Dion

Lupinus excubitus    Adonis lupine,  Grape lupine,  Grape soda lupine
native
Shrub

FABACEAE

Lupinus excubitus
© Geoff Burleigh
Lupinus excubitus
© 2024 Mike Russler
Lupinus excubitus
© 2022 Richard Spjut

Lupinus hirsutissimus    Stinging annual lupine,  Stinging lupine
native
Annual herb

FABACEAE

Lupinus hirsutissimus
© 2024 Mike Russler
Lupinus hirsutissimus
© 2023 Neil Uelman
Lupinus hirsutissimus
© 2019 Ron Vanderhoff

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

FABACEAE

Lupinus microcarpus var. microcarpus
© 2019 Mary Conway
Lupinus microcarpus var. microcarpus
© 2024 Jacob A
Lupinus microcarpus var. microcarpus
© 2022 Mike Russler

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

Lupinus truncatus    Blunt leaved lupine,  Collared annual lupine,  Truncate leaf lupine
native
Annual herb

FABACEAE

Lupinus truncatus
© 2023 Caitlin Kreutz
Lupinus truncatus
© 2023 Connor O'Hara-Baker
Lupinus truncatus
© 2010 Michael Mitchell

Lycium andersonii    Anderson thornbush,  Anderson's desert thorn,  Water jacket
native
Shrub

SOLANACEAE

Lycium andersonii
© 2010 Steve Matson
Lycium andersonii
© 2024 Ron Vanderhoff
Lycium andersonii
© 2010 Steve Matson

Lycium brevipes var. brevipes    Desert thorn
native
Shrub

SOLANACEAE

Lycium brevipes var. brevipes
© 2020 Matt Berger
Lycium brevipes var. brevipes
© 2018 Fred Melgert / Carla Hoegen
Lycium brevipes var. brevipes
© 2023 Keir Morse

Lycium californicum    California box thorn,  California boxthorn,  California desert thorn
rare native
Shrub

SOLANACEAE

Lycium californicum
© 2011 Keir Morse
Lycium californicum
© 2011 Keir Morse
Lycium californicum
© 2020 Ron Vanderhoff

non-native
Annual, Perennial herb

SOLANACEAE

Lycopersicon esculentum
© 2019 Julian Geoghegan
Lycopersicon esculentum
© 2021 Ron Vanderhoff
Lycopersicon esculentum
© 2015 John Sayers

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

LYTHRACEAE

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

Malacothamnus fasciculatus    Chaparral bushmallow,  Southern coastal bushmallow
native
Shrub

MALVACEAE

Malacothamnus fasciculatus
© 2020 Aaron Echols
Malacothamnus fasciculatus
© 2020 Ron Vanderhoff
Malacothamnus fasciculatus
© 2024 Ron Vanderhoff

Malosma laurina    Laurel sumac
native
Tree, Shrub

ANACARDIACEAE

Malosma laurina
© 2015 Steven M Norris
Malosma laurina
© 2018 susan Bashore
Malosma laurina
© 2024 Bonnie Nickel

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
© 2019 Bonnie Nickel
Malvella leprosa
© 2019 Bonnie Nickel
Malvella leprosa
© 2024 Mike Russler

Mammillaria dioica    Fish hook cactus,  Strawberry cactus
native
Shrub (stem succulent)

CACTACEAE

Mammillaria dioica
© 2019 Ray Gill
Mammillaria dioica
© 2020 Matt Berger
Mammillaria dioica
© 2019 Stacie Wolny

Marah macrocarpus    Chilicothe
native
Perennial herb, Vine

CUCURBITACEAE

Marah macrocarpus
© 2020 David Greenberger
Marah macrocarpus
© 2021 Emily Sluiman
Marah macrocarpus
© 2021 david berman

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

Matthiola incana    Tenweeks stock
non-native
Perennial herb

BRASSICACEAE

Matthiola incana
© 2020 Ron Vanderhoff
Matthiola incana
© 2021 Ron Vanderhoff
Matthiola incana
© 2021 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 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

Melilotus alba    Yellow sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus alba
© 2020 Bob Sweatt
Melilotus alba
© 2020 Bob Sweatt
Melilotus alba
© 2020 Bob Sweatt

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

FABACEAE

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

Mesembryanthem crystallinum    Small Tree-Mallow


Mesembryanthem nodiflorum    Small Tree-Mallow


Mimulus aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2019 Mary Gerbic

Mimulus brevipes    Wide throated yellow monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus brevipes
© 2024 David Strauch
Mimulus brevipes
© 2020 Ron Vanderhoff
Mimulus brevipes
© 2024 David Strauch

Mirabilis californica    California four o'clock
native
Perennial herb

NYCTAGINACEAE

Mirabilis californica
© 2014 Steve Matson
Mirabilis californica
© 2014 Steve Matson
Mirabilis californica
© 2014 Steve Matson

Monanthochloe littoralis    Shore grass
native
Perennial grass

POACEAE

Monanthochloe littoralis
© 2020 Ron Vanderhoff
Monanthochloe littoralis
© 2018 William Jones
Monanthochloe littoralis
© 2021 Ron Vanderhoff

Mucronea californica    California spineflower
rare native
Annual herb

POLYGONACEAE

Mucronea californica
© 2020 David Greenberger
Mucronea californica
© 2023 Matt Berger
Mucronea californica
© 2023 Matt Berger

Muhlenbergia microsperma    Annual muhly,  Littleseed muhly
native
Annual grass

POACEAE

Muhlenbergia microsperma
© 2017 Ron Vanderhoff
Muhlenbergia microsperma
© 2019 Ron Vanderhoff
Muhlenbergia microsperma
© 2023 Ron Vanderhoff

Muilla clevelandii    San diego goldenstar
rare native
Perennial herb

THEMIDACEAE

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

Myoporum laetum    Lollypop tree,  Ngaio tree
invasive non-native
Tree, Shrub

SCROPHULARIACEAE

Myoporum laetum
© 2018 Ron Vanderhoff
Myoporum laetum
© 2017 James Bailey
Myoporum laetum
© 2022 Ron Vanderhoff

Myosurus minimus    Common mouse tail,  Little mouse tail,  Tiny mousetail
native
Annual herb

RANUNCULACEAE

Myosurus minimus
© 2022 Dianne Lake
Myosurus minimus
© 2024 Cynthia Powell
Myosurus minimus
© 2024 Kevin Dixon

Nassella lepida    Foothill needle grass
native
Perennial grass

POACEAE

Nassella lepida
© 2017 Gary McDonald
Nassella lepida
© 2023 Ron Vanderhoff
Nassella lepida
© 2024 Mel Letterman

Nassella pulchra    Purple needle grass
native
Perennial grass

POACEAE

Nassella pulchra
© 2019 Michelle Karle
Nassella pulchra
© 2008 Zoya Akulova
Nassella pulchra
© 2019 Ron Vanderhoff

Navarretia hamata ssp. leptantha    Hooked navarretia,  Hooked pincushionplant
native
Annual herb

POLEMONIACEAE

Navarretia hamata ssp. leptantha
© 2015 Keir Morse
Navarretia hamata ssp. leptantha
© 2015 Keir Morse
Navarretia hamata ssp. leptantha
© 2015 Keir Morse

Nemacaulis denudata var. denudata    Coast woolly heads,  Cottonheads
rare native
Annual herb

POLYGONACEAE

Nemacaulis denudata var. denudata
© 2014 David Varner
Nemacaulis denudata var. denudata
© 2017 Keir Morse
Nemacaulis denudata var. denudata
© 2019 Keir Morse

native
Annual herb

HYDROPHYLLACEAE

Nemophila menziesii var. integrifolia
© 2020 David Greenberger
Nemophila menziesii var. integrifolia
© 2021 Emily Sluiman
Nemophila menziesii var. integrifolia
© 2022 R.A. Chasey

Nicotiana clevelandii    Cleveland's tobacco
native
Annual herb

SOLANACEAE

Nicotiana clevelandii
© 2014 Ron Vanderhoff
Nicotiana clevelandii
© 2023 Ron Vanderhoff
Nicotiana clevelandii
© 2023 Ron Vanderhoff

Nicotiana glauca    Tree tobacco
invasive non-native
Tree, Shrub

SOLANACEAE

Nicotiana glauca
© 2017 Steve Matson
Nicotiana glauca
© 2017 Steve Matson
Nicotiana glauca
© 2017 Steve Matson

Nicotiana quadrivalvis    Indian tobacco
native
Annual herb

SOLANACEAE

Nicotiana quadrivalvis
© 2023 Melissa Harbert
Nicotiana quadrivalvis
© 2019 Michael Mitchell
Nicotiana quadrivalvis
© 2024 Mike Russler

Oenothera elata ssp. hirsutissima    Evening primrose,  Hairy evening primrose,  Hooker's evening primrose
native
Perennial herb

ONAGRACEAE

Oenothera elata ssp. hirsutissima
© 2024 Mike Russler
Oenothera elata ssp. hirsutissima
© 2021 David Wolfson
Oenothera elata ssp. hirsutissima
© 2015 Bill Haley

Oligomeris linifolia    Leaved cambess,  Lineleaf whitepuff
native
Annual herb

RESEDACEAE

Oligomeris linifolia
© 2020 Steve Matson
Oligomeris linifolia
© 2017 Diane Etchison
Oligomeris linifolia
© 2016 Steve Matson

Opuntia littoralis    Coast prickly pear,  Coastal pricklypear,  Western prickly pear
native
Shrub (stem succulent)

CACTACEAE

Opuntia littoralis
© 2019 Diane Etchison
Opuntia littoralis
© 2022 Ron Vanderhoff
Opuntia littoralis
© 2024 Shelly Marshall

Opuntia parryi    Brownspined pricklypear,  Cane cholla
native
Perennial herb (stem succulent)

CACTACEAE

Opuntia parryi
© 2009 Thomas Stoughton
Opuntia parryi
© 2009 Stanley Spencer
Opuntia parryi
© 2008 Gary A. Monroe

Opuntia prolifera    Coastal cholla
native
Shrub (stem succulent)

CACTACEAE

Opuntia prolifera
© 2012 Keir Morse
Opuntia prolifera
© 2019 Dave Beller
Opuntia prolifera
© 2024 Mike Russler

Opuntia Xoccidentalis    Western prickly pear
native
Shrub (stem succulent)

CACTACEAE

Opuntia Xoccidentalis
© 2020 Ron Vanderhoff
Opuntia Xoccidentalis
© 2017 Ron Vanderhoff
Opuntia Xoccidentalis
© 2017 Ron Vanderhoff

Orobanche bulbosa    Chaparral broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche bulbosa
© 2022 Hunter Breck
Orobanche bulbosa
© 2019 David Greenberger
Orobanche bulbosa
© 2022 R.A. Chasey

Orobanche parishii ssp. brachyloba    Parish's broomrape,  Short lobed broom rape
rare native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche parishii ssp. brachyloba
© 2015 Paul Preston and Tim Lukaszewski
Orobanche parishii ssp. brachyloba
© 2015 Paul Preston

Osmadenia tenella    False rosinweed,  Osmadenia
native
Annual herb

ASTERACEAE

Osmadenia tenella
© 2019 Diane Etchison
Osmadenia tenella
© 2018 Diane Etchison
Osmadenia tenella
© 2021 Ron Vanderhoff

Osteospermum fruticosum    Trailing african daisy
non-native
Perennial herb

ASTERACEAE

Osteospermum fruticosum
© 2018 Ron Vanderhoff
Osteospermum fruticosum
© 2018 Ron Vanderhoff
Osteospermum fruticosum
© 2018 Ron Vanderhoff

Oxalis albicans ssp. californica    Californica wood sorrel
native
Perennial herb

OXALIDACEAE

Oxalis albicans ssp. californica
© 2019 Diane Etchison
Oxalis albicans ssp. californica
© 2020 Ron Vanderhoff
Oxalis albicans ssp. californica
© 2020 Diane Etchison

Oxalis pes-caprae    Bermuda buttercup,  Sourgrass
invasive non-native
Perennial herb

OXALIDACEAE

Oxalis pes-caprae
© 2019 Gary McDonald
Oxalis pes-caprae
© 2017 Angelique Herman
Oxalis pes-caprae
© 2015 Richard Chasey

Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

Paeonia californica
© 2024 Ron Vanderhoff
Paeonia californica
© 2023 Ron Vanderhoff
Paeonia californica
© 2019 Susan McDougall

Parapholis incurva    Curved sicklegrass,  Sickle grass
non-native
Annual grass

POACEAE

Parapholis incurva
© 2022 R.A. Chasey
Parapholis incurva
© 2021 Cynthia Powell
Parapholis incurva
© 2022 Ron Vanderhoff

Parietaria hespera var. californica    California pellitory
native
Annual herb

URTICACEAE

Parietaria hespera var. californica
© 2003 Keir Morse
Parietaria hespera var. californica
© 2003 Keir Morse
Parietaria hespera var. californica
© 2003 Keir Morse

Pectocarya penicillata    Sleeping combseed,  Winged comb seed,  Winged pectocarya
native
Annual herb

BORAGINACEAE

Pectocarya penicillata
© 2011 Steve Matson
Pectocarya penicillata
© 2022 Steve Matson
Pectocarya penicillata
© 2011 Steve Matson

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 var. mucronata    Bird's foot fern
native
Fern

PTERIDACEAE

Pellaea mucronata var. mucronata
© 2018 Rachelle Gray
Pellaea mucronata var. mucronata
© 2023 Helen Hancock
Pellaea mucronata var. mucronata
© 2023 Helen Hancock

Pennisetum setaceum    Crimson fountaingrass,  Fountaingrass
invasive non-native
Perennial grass

POACEAE

Pennisetum setaceum
© 2021 Steve Matson
Pennisetum setaceum
© 2021 Steve Matson
Pennisetum setaceum
© 2021 Steve Matson

Pentachaeta aurea    Golden chaetopappa,  Golden rayed pentachaeta
native
Annual herb

ASTERACEAE

Pentachaeta aurea
© 2022 Ron Vanderhoff
Pentachaeta aurea
© 2022 Ron Vanderhoff
Pentachaeta aurea
© 2022 Ron Vanderhoff

Pentagramma triangularis ssp. viscosa    Sticky gold back fern
native
Fern

PTERIDACEAE

Pentagramma triangularis ssp. viscosa
© 2014 Keir Morse
Pentagramma triangularis ssp. viscosa
© 2025 Ron Vanderhoff
Pentagramma triangularis ssp. viscosa
© 2024 Ron Vanderhoff

Petunia parviflora    Wild petunia
native
Annual herb

SOLANACEAE

Petunia parviflora
© 2017 Ron Vanderhoff
Petunia parviflora
© 2020 Ron Vanderhoff
Petunia parviflora
© 2022 Ron Vanderhoff

Phacelia cicutaria var. hispida    Caterpillar phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia cicutaria var. hispida
© 2017 Steve Matson
Phacelia cicutaria var. hispida
© 2017 Steve Matson
Phacelia cicutaria var. hispida
© 2017 Steve Matson

Phacelia distans    Common phacelia,  Distant phacelia,  Wild heliotrope
native
Annual herb

HYDROPHYLLACEAE

Phacelia distans
© 2014 Steve Matson
Phacelia distans
© 2014 Steve Matson
Phacelia distans
© 2022 Ron Vanderhoff

Phacelia grandiflora    Giant flowered phacelia,  Large flowered phacelia,  Largeflower phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia grandiflora
© 2014 Ron Vanderhoff
Phacelia grandiflora
© 2019 Ron Vanderhoff
Phacelia grandiflora
© 2019 Ron Vanderhoff

Phacelia parryi    Parry's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia parryi
© 2023 Ron Vanderhoff
Phacelia parryi
© 2020 Ron Vanderhoff
Phacelia parryi
© 2020 Diane Etchison

Phacelia ramosissima var. austrolitoralis    South coast branching phacelia
rare native
Perennial herb

HYDROPHYLLACEAE

Phacelia ramosissima var. austrolitoralis
© 2018 Ron Vanderhoff
Phacelia ramosissima var. austrolitoralis
© 2023 Ron Vanderhoff
Phacelia ramosissima var. austrolitoralis
© 2021 Richard Spjut

Phacelia stellaris    Brand's phacelia,  Star phacelia
rare native
Annual herb

HYDROPHYLLACEAE

Phacelia stellaris
© 2016 Keir Morse
Phacelia stellaris
© 2016 Keir Morse
Phacelia stellaris
© 2012 Keir Morse

Phalaris caroliniana    Carolina canarygrass
non-native
Annual grass

POACEAE

Phalaris caroliniana
© 2022 Chris McDonald

Pholistoma auritum var. auritum    Blue fiesta flower,  Blue fiestaflower,  Fiesta flower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma auritum var. auritum
© 2014 Steve Matson
Pholistoma auritum var. auritum
© 2014 Steve Matson
Pholistoma auritum var. auritum
© 2014 Steve Matson

Pholistoma membranaceum    White fiesta flower,  White fiestaflower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma membranaceum
© 2025 Mike Russler
Pholistoma membranaceum
© 2005 Steve Matson
Pholistoma membranaceum
© 2025 Mike Russler

Pholistoma racemosum    Racemed fiestaflower,  San Diego fiesta flower,  San Diego fiestaflower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma racemosum
© 2019 Ron Vanderhoff
Pholistoma racemosum
© 2019 Ron Vanderhoff
Pholistoma racemosum
© 2017 James Bailey

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

VERBENACEAE

Phyla nodiflora var. nodiflora
© 2018 Ron Vanderhoff
Phyla nodiflora var. nodiflora
© 2009 Ron Vanderhoff
Phyla nodiflora var. nodiflora
© 2022 Donald Burk

Phyllospadix torreyi    Surf grass,  Torrey's surfgrass
native
Perennial herb

ZOSTERACEAE

Phyllospadix torreyi
© 2018 Ron Vanderhoff
Phyllospadix torreyi
© 2022 Ron Vanderhoff
Phyllospadix torreyi
© 2022 Ron Vanderhoff

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 coulteri    Big cone pine,  Bull pine,  Coulter pine
native
Tree

PINACEAE

Pinus coulteri
© 2015 Michelle Cloud Hughes
Pinus coulteri
© 2019 Bryant Baker
Pinus coulteri
© 2020 Diane Etchison

Pinus torreyana    Island torrey pine
native
Tree

PINACEAE

Pinus torreyana
© 2019 Diane Etchison
Pinus torreyana
© 2019 Susan McDougall
Pinus torreyana
© 2019 Susan McDougall

Piperia cooperi    Cooper's rein orchid,  Coopers rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia cooperi
© 2021 Ron Vanderhoff
Piperia cooperi
© 2021 Ron Vanderhoff
Piperia cooperi
© 2018 Ron Vanderhoff

Plagiobothrys collinus var. californicus    California popcorn flower,  Cooper's popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys collinus var. californicus
© 2023 Ron Vanderhoff
Plagiobothrys collinus var. californicus
© 2019 Ron Vanderhoff
Plagiobothrys collinus var. californicus
© 2021 Ron Vanderhoff

Plagiobothrys trachycarpus    Rough fruited allocarya,  Roughfruit popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys trachycarpus
© 2022 Catherine Chang
Plagiobothrys trachycarpus
© 2022 Catherine Chang
Plagiobothrys trachycarpus
© 2022 Catherine Chang

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 major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
© 2019 Bob Sweatt
Plantago major
© 2022 Diana Wahl
Plantago major
© 2020 Ryan Carle

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
© 2017 Nathanial Wigington
Platystemon californicus
© 2022 John L. Thompson
Platystemon californicus
© 2022 John L. Thompson

Pluchea odorata    Salt marsh fleabane,  Sweetscent
native
Annual, Perennial herb

ASTERACEAE

Pluchea odorata
© 2020 Aaron Echols
Pluchea odorata
© 2019 Ron Vanderhoff
Pluchea odorata
© 2011 Keir Morse

Pluchea sericea    Arrow wed,  Arrow weed,  Arrowweed
native
Shrub

ASTERACEAE

Pluchea sericea
© 2020 Susan McDougall
Pluchea sericea
© 2021 Richard Spjut
Pluchea sericea
© 2018 Christopher Hauser

Polycarpon depressum    California allseed,  California manyseed,  California polycarpon
native
Annual herb

CARYOPHYLLACEAE

Polycarpon depressum
© 2023 James Bailey
Polycarpon depressum
© 2023 James Bailey
Polycarpon depressum
© 2022 Ken Hickman

Polycarpon tetraphyllum    Four leaved all seed,  Four leaved allseed,  Four leaved polycarp
non-native
Annual herb

CARYOPHYLLACEAE

Polycarpon tetraphyllum
© 2020 Ron Vanderhoff
Polycarpon tetraphyllum
© 2019 Ron Vanderhoff
Polycarpon tetraphyllum
© 2020 Ron Vanderhoff

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

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
© 2020 Ron Vanderhoff
Polypodium californicum
© 2021 Ron Vanderhoff
Polypodium californicum
© 2023 Keir Morse

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

Potentilla glandulosa ssp. glandulosa    Sticky cinquefoil
native
Perennial herb

ROSACEAE

Potentilla glandulosa ssp. glandulosa
© 2017 Steve Matson
Potentilla glandulosa ssp. glandulosa
© 2017 Steve Matson
Potentilla glandulosa ssp. glandulosa
© 2021 Ron Vanderhoff

Psilocarphus tenellus var. tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus var. tenellus
© 2006 Steve Matson
Psilocarphus tenellus var. tenellus
© 2006 Steve Matson
Psilocarphus tenellus var. tenellus
© 2018 Ron Vanderhoff

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

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
© 2024 Mike Russler
Quercus berberidifolia
© 2022 David Strauch

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

Rafinesquia californica    California chicory,  California plumseed
native
Annual herb

ASTERACEAE

Rafinesquia californica
© 2023 Robert Steers
Rafinesquia californica
© 2021 Ron Vanderhoff
Rafinesquia californica
© 2017 Steve Matson

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 crocea    Redberry buckthorn
native
Shrub

RHAMNACEAE

Rhamnus crocea
© 2011 Michael Mitchell
Rhamnus crocea
© 2022 Ron Vanderhoff
Rhamnus crocea
© 2019 Ron Vanderhoff

Rhamnus ilicifolia    Evergreen buckthorn,  Hollyleaf redberry
native
Shrub

RHAMNACEAE

Rhamnus ilicifolia
© 2016 Steve Matson
Rhamnus ilicifolia
© 2016 Steve Matson
Rhamnus ilicifolia
© 2006 Steve Matson

Rhus integrifolia    Lemonade berry,  Lemonade sumac
native
Shrub

ANACARDIACEAE

Rhus integrifolia
© 2024 Mike Russler
Rhus integrifolia
© 2019 Ron Vanderhoff
Rhus integrifolia
© 2024 Mike Russler

Rhus ovata    Sugar bush,  Sugar sumac
native
Shrub

ANACARDIACEAE

Rhus ovata
© 2020 Bryant Baker
Rhus ovata
© 2020 Bryant Baker
Rhus ovata
© 2024 Mike Russler

Rhus trilobata    Fragrant sumac,  Skunk Bush
native
Shrub

ANACARDIACEAE

Rhus trilobata
© 2018 Steve Matson
Rhus trilobata
© 2018 Steve Matson
Rhus trilobata
© 2018 Steve Matson

Rhynchelytrum repens    Natal grass
non-native
Annual grass

POACEAE

Rhynchelytrum repens
© 2016 Erik Larsen
Rhynchelytrum repens
© 2021 Ron Vanderhoff
Rhynchelytrum repens
© 2021 Ron Vanderhoff

Ribes indecorum    White flowering currant,  Whiteflower currant
native
Shrub

GROSSULARIACEAE

Ribes indecorum
© 2020 Diane Etchison
Ribes indecorum
© 2020 Diane Etchison
Ribes indecorum
© 2020 Diane Etchison

Ribes speciosum    Fuchsia flowered gooseberry,  Fuchsiaflower gooseberry
native
Shrub

GROSSULARIACEAE

Ribes speciosum
© 2022 David Chipping
Ribes speciosum
© 2024 Shelly Marshall
Ribes speciosum
© 2021 Ron Vanderhoff

Ricinus communis    Castor bean,  Castorbean
invasive non-native
Shrub

EUPHORBIACEAE

Ricinus communis
© 2017 Henry DiRocco
Ricinus communis
© 2020 Aaron Echols
Ricinus communis
© 2022 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 salicifolius var. salicifolius    Willow dock,  Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius var. salicifolius
© 2023 Ron Vanderhoff
Rumex salicifolius var. salicifolius
© 2023 Ron Vanderhoff
Rumex salicifolius var. salicifolius
© 2023 Helen Hancock

Ruppia maritima    Ditch grass,  Ditchgrass or wigeon grass,  Widgeongrass
native
Perennial herb (aquatic)

RUPPIACEAE

Ruppia maritima
© 2020 Ron Vanderhoff
Ruppia maritima
© 2020 Ron Vanderhoff
Ruppia maritima
© 2020 Ron Vanderhoff

Salicornia europaea    Virginia glasswort
native
Annual herb

CHENOPODIACEAE

Salicornia europaea
© 2012 Jason Matthias Mills
Salicornia europaea
© 2014 Cuyler Stapelmann
Salicornia europaea
© 2006 Doreen L. Smith

Salicornia subterminalis    Parish's glasswort
native
Perennial herb

CHENOPODIACEAE

Salicornia subterminalis
© 2020 Sandy Leatherman
Salicornia subterminalis
© 2021 Denise Defreese
Salicornia subterminalis
© 2020 Ron Vanderhoff

Salicornia virginica    Virginia glasswort
native
Annual herb

CHENOPODIACEAE

Salicornia virginica
© 2012 Jason Matthias Mills
Salicornia virginica
© 2014 Cuyler Stapelmann
Salicornia virginica
© 2006 Doreen L. Smith

Salix gooddingii    Goodding's black willow,  Goodding's willow,  Gooding's willow
native
Tree

SALICACEAE

Salix gooddingii
© 2020 Ron Vanderhoff
Salix gooddingii
© 2021 Richard Spjut
Salix gooddingii
© 2020 Ron Vanderhoff

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

Salix lasiolepis
© 2019 Steve Matson
Salix lasiolepis
© 2022 Ron Vanderhoff
Salix lasiolepis
© 2020 Steve Matson

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 apiana    White sage
native
Shrub

LAMIACEAE

Salvia apiana
© 2019 Hannah Garcia
Salvia apiana
© 2019 Ron Vanderhoff
Salvia apiana
© 2020 Ron Vanderhoff

Salvia clevelandii    Cleveland sage,  Fragrant sage
native
Shrub

LAMIACEAE

Salvia clevelandii
© 2019 Diane Etchison
Salvia clevelandii
© 2022 Ron Vanderhoff
Salvia clevelandii
© 2022 Ron Vanderhoff

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

Salvia columbariae
© 2020 Ron Vanderhoff
Salvia columbariae
© 2022 Mike Russler
Salvia columbariae
© 2022 Mike Russler

Salvia mellifera    Black sage
native
Shrub

LAMIACEAE

Salvia mellifera
© 2017 Steve Matson
Salvia mellifera
© 2022 Suzanne L. Weakley
Salvia mellifera
© 2019 Diane Etchison

Sambucus mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

Sambucus mexicana
© 2021 Mike Russler
Sambucus mexicana
© 2020 Diane Etchison
Sambucus mexicana
© 2022 El Byrne

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

native
Perennial herb

APOCYNACEAE

Sarcostemma cynanchoides ssp. hartwegii
© 2010 Steve Matson
Sarcostemma cynanchoides ssp. hartwegii
© 2010 Steve Matson
Sarcostemma cynanchoides ssp. hartwegii
© 2025 Mike Russler

Schinus molle    Peruvian pepper tree,  Peruvian peppertree
invasive non-native
Tree

ANACARDIACEAE

Schinus molle
© 2021 stephen rosenthal
Schinus molle
© 2017 William McCarey
Schinus molle
© 2023 Ron Vanderhoff

Schismus barbatus    Common mediterranean grass,  Old han schismus
invasive non-native
Annual grass

POACEAE

Schismus barbatus
© 2022 Ron Vanderhoff
Schismus barbatus
© 2022 Ron Vanderhoff
Schismus barbatus
© 2022 Ron Vanderhoff

Scirpus californicus    California bulrush
native
Perennial grasslike herb

CYPERACEAE

Scirpus californicus
© 2021 R.A. Chasey
Scirpus californicus
© 2020 Diane Etchison
Scirpus californicus
© 2021 R.A. Chasey

Scirpus robustus    Sturdy bullrush
native
Perennial grasslike herb

CYPERACEAE

Scirpus robustus
© 2022 R.A. Chasey
Scirpus robustus
© 2022 R.A. Chasey
Scirpus robustus
© 2009 Toni Corelli

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

Selaginella cinerascens    Ashy spike moss,  Mesa spikemoss
rare native

SELAGINELLACEAE

Selaginella cinerascens
© 2015 Ron Vanderhoff
Selaginella cinerascens
© 2015 Keir Morse
Selaginella cinerascens
© 2025 Ron Vanderhoff

Senecio californicus    California butterweed,  California groundsel,  California ragwort
native
Annual herb

ASTERACEAE

Senecio californicus
© 2019 Diane Etchison
Senecio californicus
© 2023 Ron Vanderhoff
Senecio californicus
© 2022 Ron Vanderhoff

Senecio mikanioides    Cape ivy
invasive non-native
Perennial herb

ASTERACEAE

Senecio mikanioides
© 2019 Ron Vanderhoff
Senecio mikanioides
© 2019 Ron Vanderhoff
Senecio mikanioides
© 2019 Ron Vanderhoff

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
© 2023 Ron Vanderhoff
Senecio vulgaris
© 2021 Toni Corelli

Sidalcea malvaeflora ssp. sparsifolia    Checker bloom,  Checker mallow,  Dwarf checkerbloom
native
Perennial herb

MALVACEAE

Sidalcea malvaeflora ssp. sparsifolia
© 2024 Mary Ann Machi
Sidalcea malvaeflora ssp. sparsifolia
© 2019 Mary Wloch
Sidalcea malvaeflora ssp. sparsifolia
© 2021 R.A. Chasey

Silene antirrhina    Sleepy catch fly,  Sleepy catchfly,  Sleepy silene
native
Annual herb

CARYOPHYLLACEAE

Silene antirrhina
© 2019 Ken Hickman
Silene antirrhina
© 2019 Ken Hickman
Silene antirrhina
© 2023 Matt Berger

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

Silene laciniata ssp. major    Cardinal catchfly
native
Perennial herb

CARYOPHYLLACEAE

Silene laciniata ssp. major
© 2020 David Greenberger
Silene laciniata ssp. major
© 2023 Ron Vanderhoff
Silene laciniata ssp. major
© 2023 Ron Vanderhoff

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

Simmondsia chinensis    Jojoba; goatnut,  Jojobe
native
Shrub

SIMMONDSIACEAE

Simmondsia chinensis
© 2019 Matt Berger
Simmondsia chinensis
© 2020 Matt Berger
Simmondsia chinensis
© 2017 Diane Etchison

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 orientale    Indian hedge mustard,  Oriental hedge mustard
non-native
Annual, Perennial herb

BRASSICACEAE

Sisymbrium orientale
© 2019 Diane Etchison
Sisymbrium orientale
© 2021 Paul Aigner
Sisymbrium orientale
© 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

Solanum americanum    American black nightshade,  Common nightshade,  Small flowered nightshade
native
Annual, Perennial herb

SOLANACEAE

Solanum americanum
© 2009 Steve Matson
Solanum americanum
© 2009 Steve Matson
Solanum americanum
© 2009 Steve Matson

Solanum douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

Solanum douglasii
© 2006 Steve Matson
Solanum douglasii
© 2024 Mike Russler
Solanum douglasii
© 2006 Steve Matson

Solanum parishii    Nightshade,  Parish's nightshade,  Parish's purple nightshade
native
Shrub

SOLANACEAE

Solanum parishii
© 2019 Diane Etchison
Solanum parishii
© 2020 G Froelich
Solanum parishii
© 2023 Caitlin Kreutz

Solanum xanti    Chaparral nightshade,  Nightshade,  Purple nightshade
native
Perennial herb, Shrub

SOLANACEAE

Solanum xanti
© 2008 Steve Matson
Solanum xanti
© 2008 Steve Matson
Solanum xanti
© 2008 Steve Matson

Sonchus asper ssp. asper    Prickly sow thistle,  Sow thistle
invasive non-native
Annual herb

ASTERACEAE

Sonchus asper ssp. asper
© 2014 Gary McDonald
Sonchus asper ssp. asper
© 2022 Ron Vanderhoff
Sonchus asper ssp. asper
© 2014 Gary McDonald

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

Spergularia bocconei    Boccone's sand spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergularia bocconei
© 2021 Ron Vanderhoff
Spergularia bocconei
© 2021 Ron Vanderhoff
Spergularia bocconei
© 2019 Ron Vanderhoff

Spergularia macrotheca var. macrotheca    Sand spurrey,  Sticky sand spurry,  Sticky sandspurry
native
Perennial herb

CARYOPHYLLACEAE

Spergularia macrotheca var. macrotheca
© 2008 Steve Matson
Spergularia macrotheca var. macrotheca
© 2017 B.J. Dion
Spergularia macrotheca var. macrotheca
© 2020 David Wolfson

Spergularia marina    Salt marsh sand spurry
native
Annual herb

CARYOPHYLLACEAE

Spergularia marina
© 2023 Mike Russler
Spergularia marina
© 2021 R.A. Chasey
Spergularia marina
© 2021 Ron Vanderhoff

Spergularia platensis    La plata sandspurry
non-native
Annual herb

CARYOPHYLLACEAE


Spergularia villosa    Hairy sand spurrey,  Hairy sandspurry,  Villous sand spurry
non-native
Perennial herb

CARYOPHYLLACEAE

Spergularia villosa
© 2021 Ron Vanderhoff
Spergularia villosa
© 2011 Toni Corelli
Spergularia villosa
© 2021 Ron Vanderhoff

Stachys ajugoides var. rigida    Mexican hedgenettle
native
Perennial herb

LAMIACEAE

Stachys ajugoides var. rigida
© 2016 Steve Matson
Stachys ajugoides var. rigida
© 2016 Steve Matson
Stachys ajugoides var. rigida
© 2016 Steve Matson

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria media
© 2018 Gary McDonald
Stellaria media
© 2018 Gary McDonald
Stellaria media
© 2015 Diane Etchison

Stephanomeria diegensis    San diego milk aster,  Wreathplant
native
Annual, Perennial herb

ASTERACEAE

Stephanomeria diegensis
© 2024 Bonnie Nickel
Stephanomeria diegensis
© 2021 Ron Vanderhoff
Stephanomeria diegensis
© 2023 Suzanne Hooker

Stephanomeria virgata ssp. virgata    Rod wirelettuce,  Tall milk aster,  Virgate stephanomeria
native
Annual herb

ASTERACEAE

Stephanomeria virgata ssp. virgata
© 2019 David Greenberger
Stephanomeria virgata ssp. virgata
© 1970 Martin Purdy
Stephanomeria virgata ssp. virgata
© 2018 Ron Vanderhoff

Stylocline gnaphaloides    Everlasting nest straw,  Everlasting stylocline,  Mountain neststraw
native
Annual herb

ASTERACEAE

Stylocline gnaphaloides
© 2019 Diane Etchison
Stylocline gnaphaloides
© 2021 Ron Vanderhoff
Stylocline gnaphaloides
© 2021 Ron Vanderhoff

Stylomecon heterophylla    Wind poppy
native
Annual herb

PAPAVERACEAE

Stylomecon heterophylla
© 2017 Gary McDonald
Stylomecon heterophylla
© 2014 Stephen Rosenthal
Stylomecon heterophylla
© 2014 Ruth Ann Pearsons

Suaeda esteroa    Estuary seablite
rare native
Perennial herb

CHENOPODIACEAE

Suaeda esteroa
© 2023 Ron Vanderhoff
Suaeda esteroa
© 2021 Ron Vanderhoff
Suaeda esteroa
© 2016 Keir Morse

Tamarix parviflora    Fourstamen tamarisk,  Smallflower tamarisk
invasive non-native
Tree, Shrub

TAMARICACEAE

Tamarix parviflora
© 2015 Steve Matson
Tamarix parviflora
© 2020 Leslie Cobb
Tamarix parviflora
© 2015 Steve Matson

Tamarix ramosissima    Saltcedar,  Tamarisk
invasive non-native
Tree, Shrub

TAMARICACEAE

Tamarix ramosissima
© 2025 richard mcneill
Tamarix ramosissima
© 2017 Barbara Boethling
Tamarix ramosissima
© 2022 Ron Vanderhoff

Tetragonia tetragonioides    New zealand spinach
invasive non-native
Annual herb

AIZOACEAE

Tetragonia tetragonioides
© 2017 James Bailey
Tetragonia tetragonioides
© 2022 David Strauch
Tetragonia tetragonioides
© 2009 Neal Kramer

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

Toxicodendron diversilobum    Poison oak,  Poisonoak,  Western Poison Oak
native
Vine, Shrub

ANACARDIACEAE

Toxicodendron diversilobum
© 2020 Ron Vanderhoff
Toxicodendron diversilobum
© 2019 Randy Huey
Toxicodendron diversilobum
© 2025 Mike Russler

Tribulus terrestris    Puncture vine,  Puncturevine
invasive non-native
Annual herb

ZYGOPHYLLACEAE

Tribulus terrestris
© 2015 Steve Matson
Tribulus terrestris
© 2015 Steve Matson
Tribulus terrestris
© 2020 Ron Vanderhoff

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

Tropaeolum majus    Garden nasturtium,  Nasturtium
invasive non-native
Annual herb, Vine

TROPAEOLACEAE

Tropaeolum majus
© 2021 Julie A. Kierstead
Tropaeolum majus
© 2024 Mike Russler
Tropaeolum majus
© 2020 Jennifer Mo

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

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 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

Verbascum blattaria    Moth mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum blattaria
© 2024 Mike Russler
Verbascum blattaria
© 2019 Marisa Persaud
Verbascum blattaria
© 2019 Patrick Furtado

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
© 2016 Cynthia Powell

Verbena lasiostachys    Common verbena,  Vervain,  Western verbena
native
Perennial herb

VERBENACEAE

Verbena lasiostachys
© 2010 Steve Matson
Verbena lasiostachys
© 2010 Steve Matson
Verbena lasiostachys
© 2010 Steve Matson

Vicia ludoviciana var. ludoviciana    Louisiana vetch
native
Annual herb

FABACEAE

Vicia ludoviciana var. ludoviciana
© 2022 Ron Vanderhoff
Vicia ludoviciana var. ludoviciana
© 2023 Ron Vanderhoff
Vicia ludoviciana var. ludoviciana
© 2022 Ron Vanderhoff

Vicia villosa ssp. varia    Smooth vetch,  Thick fruited vetch,  Winter vetch
non-native
Annual herb, Vine

FABACEAE

Vicia villosa ssp. varia
© 2019 Gary McDonald
Vicia villosa ssp. varia
© 2017 Gary McDonald
Vicia villosa ssp. varia
© 2006 Steve Matson

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

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

Vulpia octoflora var. hirtella    Sixweeks grass
native
Annual grass

POACEAE

Vulpia octoflora var. hirtella
© 2023 R.A. Chasey
Vulpia octoflora var. hirtella
© 2020 Sara Timby
Vulpia octoflora var. hirtella
© 2018 Ken Hickman

Vulpia octoflora var. octoflora    Sixweeks grass
native
Annual grass

POACEAE

Vulpia octoflora var. octoflora
© 2023 R.A. Chasey
Vulpia octoflora var. octoflora
© 2020 Sara Timby
Vulpia octoflora var. octoflora
© 2018 Ken Hickman

Washingtonia robusta    Mexican fan palm
invasive non-native
Tree

ARECACEAE

Washingtonia robusta
© 2018 James Bailey
Washingtonia robusta
© 2021 Ron Vanderhoff
Washingtonia robusta
© 2015 Zoya Akulova

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

Xylococcus bicolor    Mission manzanita
native
Shrub

ERICACEAE

Xylococcus bicolor
© 2023 R.A. Chasey
Xylococcus bicolor
© 2012 Ron Vanderhoff
Xylococcus bicolor
© 2023 R.A. Chasey

Yucca schidigera    Mohave yucca,  Mojave yucca
native
Tree

AGAVACEAE

Yucca schidigera
© 2023 David Strauch
Yucca schidigera
© 2017 Margarita Orlova
Yucca schidigera
© 2020 Susan McDougall

Yucca whipplei    Chaparral yucca
native
Shrub

AGAVACEAE

Yucca whipplei
© 2020 Julia Markey
Yucca whipplei
© Geoff Burleigh
Yucca whipplei
© 2020 Matt Berger

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
© 2021 Kristen Nelson