logo Calflora  Illustrated Plant List 
Montaña de Oro State Park
San Luis Obispo County

David Keil  / CNPS-SLO  (2019-06-07)

Record Detail Nearby Surveys What Grows Here?
517 PLANTS
Abronia latifolia    Coastal sand verbena,  Sand verbena,  Yellow sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia latifolia
© 2016 Steve Matson
Abronia latifolia
© 2016 Steve Matson
Abronia latifolia
© 2016 Steve Matson

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 var. umbellata    Beach sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia umbellata var. umbellata
© 2014 Steve Matson
Abronia umbellata var. umbellata
© 2014 Steve Matson
Abronia umbellata var. umbellata
© 2014 Steve Matson

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
© 2020 Diane Etchison
Acer macrophyllum
© 2024 Mary Ann Machi
Acer macrophyllum
© 2018 Steve Matson

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

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

Acmispon brachycarpus    hill lotus
native
Annual herb

FABACEAE

Acmispon brachycarpus
© 2023 R.A. Chasey
Acmispon brachycarpus
© 2018 Steve Matson
Acmispon brachycarpus
© 2018 Steve Matson

native
Perennial herb

FABACEAE

Acmispon glaber var. glaber
© 2020 Ron Vanderhoff
Acmispon glaber var. glaber
© 2020 Ron Vanderhoff
Acmispon glaber var. glaber
© 2020 Ron Vanderhoff

native
Perennial herb

FABACEAE

Acmispon heermannii var. orbicularis
© 2023 Matt Berger
Acmispon heermannii var. orbicularis
© 2022 R.A. Chasey
Acmispon heermannii var. orbicularis
© 2023 R.A. Chasey

Acmispon junceus var. biolettii    Bioletti's rush lotus
native
Perennial herb

FABACEAE

Acmispon junceus var. biolettii
© 2021 Toni Corelli
Acmispon junceus var. biolettii
© 2024 Robert Steers
Acmispon junceus var. biolettii
© 2021 Toni Corelli

native
Perennial herb

FABACEAE

Acmispon junceus var. junceus
© 2016 John Doyen
Acmispon junceus var. junceus
© 2016 John Doyen
Acmispon junceus var. junceus
© 2016 John Doyen

native
Annual herb

FABACEAE

Acmispon maritimus var. maritimus
© 2020 Ron Vanderhoff
Acmispon maritimus var. maritimus
© 2023 Ron Vanderhoff
Acmispon maritimus var. maritimus
© 2020 Ron Vanderhoff

Acmispon micranthus    Small flowered lotus
native
Annual herb

FABACEAE

Acmispon micranthus
© 2016 Aaron Echols
Acmispon micranthus
© 2016 James Bailey
Acmispon micranthus
© 2019 Ron Vanderhoff

Acmispon parviflorus    Hill lotus
native
Annual herb

FABACEAE

Acmispon parviflorus
© 2008 Steve Matson
Acmispon parviflorus
© 2022 Dana York
Acmispon parviflorus
© 2008 Steve Matson

Acmispon strigosus    Strigose lotus
native
Annual herb

FABACEAE

Acmispon strigosus
© 2024 Mike Russler
Acmispon strigosus
© 2023 Ron Vanderhoff
Acmispon strigosus
© 2016 Steve Matson

Actaea rubra    baneberry,  Western baneberry
native
Perennial herb

RANUNCULACEAE

Actaea rubra
© 2014 Steve Matson
Actaea rubra
© 2014 Steve Matson
Actaea rubra
© 2002 Gerald Carr

Adelinia grandis    Hound's tongue,  Western houndstongue,  Adelinia
native
Perennial herb

BORAGINACEAE

Adelinia grandis
© 2022 David Strauch
Adelinia grandis
© 2007 Steve Matson
Adelinia grandis
© 2021 Dee Shea Himes

native
Tree, Shrub

ROSACEAE

Adenostoma fasciculatum var. fasciculatum
© 2019 Steve Matson
Adenostoma fasciculatum var. fasciculatum
© 2019 Steve Matson
Adenostoma fasciculatum var. fasciculatum
© 2019 Steve Matson

Adiantum aleuticum    Five finger fern
native
Fern

PTERIDACEAE

Adiantum aleuticum
© 2021 Julie A. Kierstead
Adiantum aleuticum
© 2018 Neal Kramer
Adiantum aleuticum
© 2013 BOB CASE

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

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

Ageratina adenophora    Sticky snakeroot,  Thoroughwort
invasive non-native
Perennial herb

ASTERACEAE

Ageratina adenophora
© 2019 Ron Vanderhoff
Ageratina adenophora
© 2017 Keir Morse
Ageratina adenophora
© 2019 Ron Vanderhoff

Agoseris grandiflora var. grandiflora    Giant mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris grandiflora var. grandiflora
© 2007 Gerald Carr
Agoseris grandiflora var. grandiflora
© 2007 Gerald Carr
Agoseris grandiflora var. grandiflora
© 2012 Michael Mitchell

Agrostis exarata    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

Agrostis exarata
© 2022 Teal Derrer
Agrostis exarata
© 2021 David popp
Agrostis exarata
© 2022 John Rawlings

Agrostis gigantea    Creeping bentgras,  Giant bentgrass,  Redtop
non-native
Perennial grass

POACEAE

Agrostis gigantea
© 2023 Dana York
Agrostis gigantea
© 2023 Dana York
Agrostis gigantea
© 2022 John Rawlings

Agrostis pallens    Leafy bent grass,  Diego bent grass,  Seashore bentgrass
native
Perennial grass

POACEAE

Agrostis pallens
© 2021 John Rawlings
Agrostis pallens
© 2020 Susan McDougall
Agrostis pallens
© 2021 John Rawlings

Agrostis stolonifera    Creeping bentgrass,  Redtop
invasive non-native
Perennial grass

POACEAE

Agrostis stolonifera
© 2018 Rachelle Gray
Agrostis stolonifera
© 2018 Rachelle Gray
Agrostis stolonifera
© 2018 Rachelle Gray

Agrostis tandilensis    Kennedy's bentgrass
non-native
Annual grass

POACEAE

Agrostis tandilensis
© University and Jepson Herbaria

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

POACEAE

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

Allophyllum glutinosum    Sticky false gilia,  Sticky false gilyflower
native
Annual herb

POLEMONIACEAE

Allophyllum glutinosum
© 2020 Ron Vanderhoff
Allophyllum glutinosum
© 2023 Ron Vanderhoff
Allophyllum glutinosum
© 2022 Ron Vanderhoff

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

Amsinckia menziesii    Menzies' fiddleneck,  Small flowered fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia menziesii
© 2020 Ron Vanderhoff
Amsinckia menziesii
© 2022 Catherine Chang
Amsinckia menziesii
© 2022 Catherine Chang

Amsinckia spectabilis var. microcarpa    Small fruit seaside fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia spectabilis var. microcarpa
© 2020 David Greenberger
Amsinckia spectabilis var. microcarpa
© 1997 Christopher L. Christie
Amsinckia spectabilis var. microcarpa
© 1997 Christopher L. Christie

Amsinckia spectabilis var. spectabilis    Seaside fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia spectabilis var. spectabilis
© 2017 James Gonsman
Amsinckia spectabilis var. spectabilis
© 2023 Toni Corelli
Amsinckia spectabilis var. spectabilis
© 2015 Toni Corelli

Anaphalis margaritacea    Pearly everlasting
native
Perennial herb

ASTERACEAE

Anaphalis margaritacea
© 2020 Bob Sweatt
Anaphalis margaritacea
© 2021 Ken Lunders
Anaphalis margaritacea
© 2014 James Gonsman

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

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

Aphyllon californicum ssp. grande    California broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Aphyllon californicum ssp. grande
© 2022 Joel A. Germond, Psy.D.
Aphyllon californicum ssp. grande
© 2022 Joel A. Germond, Psy.D.
Aphyllon californicum ssp. grande
© 2002 Dean Wm. Taylor

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

Aptenia cordifolia    Baby sun rose,  Dew plant
non-native
Perennial herb

AIZOACEAE

Aptenia cordifolia
© 2022 Ron Vanderhoff
Aptenia cordifolia
© 2022 Ron Vanderhoff
Aptenia cordifolia
© 2022 Ron Vanderhoff

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

ARALIACEAE

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

Arbutus menziesii    Madrono,  Pacific madrone,  Madrone
native
Tree

ERICACEAE

Arbutus menziesii
© 2021 R.A. Chasey
Arbutus menziesii
© 2017 Gary McDonald
Arbutus menziesii
© 2021 Hunter Breck

Arctostaphylos crustacea ssp. crustacea    Brittle leaf manzanita
native
Shrub

ERICACEAE

Arctostaphylos crustacea ssp. crustacea
© 2017 Steve Matson
Arctostaphylos crustacea ssp. crustacea
© 2017 Steve Matson
Arctostaphylos crustacea ssp. crustacea
© 2017 Steve Matson

Arctostaphylos morroensis    Morro manzanita
rare native
Shrub

ERICACEAE

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

Arctostaphylos pechoensis    Pecho manzanita
rare native
Shrub

ERICACEAE

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

rare native
Shrub

ERICACEAE

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

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

ASTERACEAE

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

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

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

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

ASTERACEAE

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

Asparagus asparagoides    African asparagus fern
invasive non-native
Vine

ASPARAGACEAE

Asparagus asparagoides
© 2023 Cynthia Powell
Asparagus asparagoides
© 2018 Ron Vanderhoff
Asparagus asparagoides
© 2022 Joan Miller

non-native
Perennial herb

ASPARAGACEAE

Asparagus officinalis ssp. officinalis
© 2021 Robin Carter
Asparagus officinalis ssp. officinalis
© 2022 Charles Russell
Asparagus officinalis ssp. officinalis
© 2020 MCOSD EDRR

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

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

FABACEAE

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

Astragalus nuttallii var. virgatus    Nuttall's milkvetch,  Ocean bluff milk vetch,  San francisco rattleweed
native
Perennial herb

FABACEAE

Astragalus nuttallii var. virgatus
© 2016 Toni Corelli
Astragalus nuttallii var. virgatus
© 2011 Toni Corelli
Astragalus nuttallii var. virgatus
© 2015 Mary Sue Ittner

Astragalus pomonensis    Pomona milk vetch,  Pomona milkvetch
native
Perennial herb

FABACEAE

Astragalus pomonensis
© 2020 David Greenberger
Astragalus pomonensis
© 2024 Mike Russler
Astragalus pomonensis
© 2023 Ron Vanderhoff

Athyrium filix-femina var. cyclosorum    Common lady fern,  Subarctic lady fern,  Western lady fern
native
Fern

ATHYRIACEAE

Athyrium filix-femina var. cyclosorum
© 2021 R.A. Chasey
Athyrium filix-femina var. cyclosorum
© 2021 R.A. Chasey
Athyrium filix-femina var. cyclosorum
© 2021 John Rawlings

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 prostrata    Fat-hen
non-native
Annual herb

CHENOPODIACEAE

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

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 watsonii    Matscale,  Watson's saltbush
native
Perennial herb

CHENOPODIACEAE

Atriplex watsonii
© 2024 Mike Russler
Atriplex watsonii
© 2024 Mike Russler
Atriplex watsonii
© 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

Avena sativa    Common oats,  Cultivated oats,  Wild oat
non-native
Annual, Perennial grass

POACEAE

Avena sativa
© 2016 Cynthia Powell
Avena sativa
© 2021 John Rawlings
Avena sativa
© 2006 Louis-M. Landry

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

ASTERACEAE

Baccharis glutinosa
© 2020 Patrick Furtado
Baccharis glutinosa
© 2019 Julian Geoghegan
Baccharis glutinosa
© 2025 R.A. Chasey

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

Barbarea orthoceras    American rocket,  American wintercress,  Erectpod wintercress
native
Perennial herb

BRASSICACEAE

Barbarea orthoceras
© 2015 James Gonsman
Barbarea orthoceras
© 2019 Diane Etchison
Barbarea orthoceras
© 2020 Diane Etchison

Blitum californicum    Small Tree-Mallow


native
Perennial grasslike herb

CYPERACEAE

Bolboschoenus maritimus ssp. paludosus
© 2024 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
© 2024 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
© 2020 Alice Cummings

Bolboschoenus robustus x B. maritimus    Small Tree-Mallow


Brachypodium hybridum    Small Tree-Mallow


Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

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

Brassica oleracea    Cabbage
non-native
Annual herb

BRASSICACEAE

Brassica oleracea
© 2009 Toni Corelli
Brassica oleracea
© 2021 Zoya Akulova-Barlow
Brassica oleracea
© 2009 Toni Corelli

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

BRASSICACEAE

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

Bromus carinatus var. carinatus    California brome,  Mountain brome
native
Perennial grass

POACEAE

Bromus carinatus var. carinatus
© 2016 Richard Chasey
Bromus carinatus var. carinatus
© 2013 Jean Pawek
Bromus carinatus var. carinatus
© 2021 Amelia Ryan

non-native
Annual, Perennial grass

POACEAE

Bromus catharticus var. catharticus
© 2019 John Rawlings
Bromus catharticus var. catharticus
© 2023 Jacob Smith
Bromus catharticus var. catharticus
© 2023 Jacob Smith

Bromus catharticus var. elatus    Chilean brome
non-native
Annual, Perennial grass

POACEAE

Bromus catharticus var. elatus
© 2006 Steve Matson
Bromus catharticus var. elatus
© 2006 Steve Matson
Bromus catharticus var. elatus
© 2006 Steve Matson

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

Bromus madritensis    Foxtail chess, foxtail brome,  Madrid brome,  Spanish brome
non-native
Annual grass

POACEAE

Bromus madritensis
© 2022 Steve Matson
Bromus madritensis
© 2023 Stephen H Siemsen
Bromus madritensis
© 2015 Chris Jaster

Bromus pseudolaevipes    Coast range brome,  Southern chinook brome
native
Perennial grass

POACEAE

Bromus pseudolaevipes
© 2019 Ron Vanderhoff
Bromus pseudolaevipes
© 2019 Ron Vanderhoff
Bromus pseudolaevipes
© 2019 Ron Vanderhoff

Bromus rubens    Red brome
invasive non-native
Annual grass

POACEAE

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

Cakile maritima    European searocket,  Sea rocket
invasive non-native
Annual herb

BRASSICACEAE

Cakile maritima
© 2019 Diane Etchison
Cakile maritima
© 2021 R.A. Chasey
Cakile maritima
© 2019 Diane Etchison

Calandrinia breweri    Brewer's calandrinia
rare native
Annual herb

MONTIACEAE

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

Calandrinia menziesii    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

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

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

LILIACEAE

Calochortus clavatus var. clavatus
© 2025 David Wolfson
Calochortus clavatus var. clavatus
© 2020 David Krause
Calochortus clavatus var. clavatus
© 2023 Mike Russler

Calystegia macrostegia ssp. cyclostegia    Coast morning glory,  Island false bindweed
native
Perennial herb, Vine

CONVOLVULACEAE

Calystegia macrostegia ssp. cyclostegia
© 2017 Michael Mitchell
Calystegia macrostegia ssp. cyclostegia
© 2020 James Gonsman
Calystegia macrostegia ssp. cyclostegia
© 2017 Michael Mitchell

Calystegia soldanella    Beach morning glory,  Beach morningglory
native
Perennial herb

CONVOLVULACEAE

Calystegia soldanella
© 2020 David Greenberger
Calystegia soldanella
© 2021 Hayley Ross
Calystegia soldanella
© 2024 Cynthia Powell

Camissonia strigulosa    Contorted primrose,  Sandysoil suncup,  Strigose sun cup
native
Annual herb

ONAGRACEAE

Camissonia strigulosa
© 2022 Mike Russler
Camissonia strigulosa
© 2024 Jacob A
Camissonia strigulosa
© 2023 R.A. Chasey

native
Annual, Perennial herb

ONAGRACEAE

Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2024 Mike Russler
Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2024 Mike Russler
Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2024 Mary Ann Machi

Camissoniopsis micrantha    Spencer primrose
native
Annual herb

ONAGRACEAE

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

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

BRASSICACEAE

Capsella bursa-pastoris
© 2008 Steve Matson
Capsella bursa-pastoris
© 2008 Steve Matson
Capsella bursa-pastoris
© 2008 Steve Matson

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus
© 2019 Gary McDonald
Carduus pycnocephalus
© 2023 Diana Wahl
Carduus pycnocephalus
© 2023 Ron Vanderhoff

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

ASTERACEAE

Carduus tenuiflorus
© 2018 Gary McDonald
Carduus tenuiflorus
© 2018 Gary McDonald
Carduus tenuiflorus
© 2023 Cynthia Powell

Carex globosa    Round fruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex globosa
© 2014 Steve Matson
Carex globosa
© 2014 Steve Matson
Carex globosa
© 2014 Steve Matson

Carex obnupta    Coast carex,  Slough sedge
native
Perennial grasslike herb

CYPERACEAE

Carex obnupta
© 2017 Steve Matson
Carex obnupta
© 2017 Steve Matson
Carex obnupta
© 2017 Steve Matson

Carex praegracilis    Clustered field sedge,  Field sedge
native
Perennial grasslike herb

CYPERACEAE

Carex praegracilis
© 2020 Steve Matson
Carex praegracilis
© 2020 Steve Matson
Carex praegracilis
© 2020 Steve Matson

Carex subbracteata    Small bract sedge
native
Perennial grasslike herb

CYPERACEAE

Carex subbracteata
© 2023 Dana York
Carex subbracteata
© 2021 John Rawlings
Carex subbracteata
© 2023 Ellen Uhler

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

OROBANCHACEAE

Castilleja densiflora ssp. densiflora
© 2018 Hayley Ross
Castilleja densiflora ssp. densiflora
© 2019 Verna Jigour
Castilleja densiflora ssp. densiflora
© 2015 James Gonsman

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

Ceanothus cuneatus var. fascicularis    Sand buck brush,  Sedgeleaf buckbrush
rare native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. fascicularis
© 2024 Mike Russler
Ceanothus cuneatus var. fascicularis
© 2022 Cynthia Powell
Ceanothus cuneatus var. fascicularis
© 2019 Bryant Baker

native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. ramulosus
© 2023 lorri-gong
Ceanothus cuneatus var. ramulosus
© 2021 lorri-gong
Ceanothus cuneatus var. ramulosus
© 2024 olliecat

Ceanothus papillosus    warty-leaf ceanothus,  Wartleaf ceanothus
native
Shrub

RHAMNACEAE

Ceanothus papillosus
© 2018 Mary Conway
Ceanothus papillosus
© 2024 Mary Gerbic
Ceanothus papillosus
© 2021 Mary Conway

Ceanothus thyrsiflorus var. griseus    Carmel ceanothus
native
Shrub

RHAMNACEAE

Ceanothus thyrsiflorus var. griseus
© 2006 Steve Matson
Ceanothus thyrsiflorus var. griseus
© 2023 aparrot1
Ceanothus thyrsiflorus var. griseus
© 2014 Robert Sikora

Cenchrus clandestinus    Kikuyu grass,  Kikuyugrass
invasive non-native
Perennial grass

POACEAE

Cenchrus clandestinus
© 2020 Ron Vanderhoff
Cenchrus clandestinus
© 2020 Ron Vanderhoff
Cenchrus clandestinus
© 2017 Josh Nuzzo

Cenchrus longisetus    Feathertop
invasive non-native
Perennial grass

POACEAE

Cenchrus longisetus
© 2018 Ron Vanderhoff
Cenchrus longisetus
© 2023 Ron Vanderhoff
Cenchrus longisetus
© 2020 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

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

Chenopodiastrum murale    Small Tree-Mallow


Chenopodium berlandieri var. zschackei    Pit seed goosefoot
native
Annual herb

CHENOPODIACEAE

Chenopodium berlandieri var. zschackei
© 2018 Gerald Carr
Chenopodium berlandieri var. zschackei
© 2018 Gerald Carr
Chenopodium berlandieri var. zschackei
© 2018 Gerald Carr

Chenopodium littoreum    Coastal goosefoot
rare native
Annual herb

CHENOPODIACEAE

Chenopodium littoreum
© 2014 John Sayers
Chenopodium littoreum
© 2014 John Sayers
Chenopodium littoreum
© 2012 Terrence Gosliner

Chloropyron maritimum ssp. maritimum    Salt marsh bird's-beak
rare native
Annual herb

OROBANCHACEAE

Chloropyron maritimum ssp. maritimum
© 2018 Ron Vanderhoff
Chloropyron maritimum ssp. maritimum
© 2020 Ron Vanderhoff
Chloropyron maritimum ssp. maritimum
© 2019 Bonnie Nickel

Chorizanthe angustifolia    Narrow leaf spineflower,  Narrowleaf spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe angustifolia
© 2021 Keir Morse
Chorizanthe angustifolia
© 2021 Keir Morse
Chorizanthe angustifolia
© 2021 Keir Morse

Chorizanthe palmeri    Palmer's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe palmeri
© 2019 David Greenberger
Chorizanthe palmeri
© 2012 Terrence Gosliner
Chorizanthe palmeri
© 2023 Mike Russler

Chrysolepis chrysophylla var. minor    Bush chinquapin,  Giant chinquapin
native
Tree, Shrub

FAGACEAE

Chrysolepis chrysophylla var. minor
© 2020 R.A. Chasey
Chrysolepis chrysophylla var. minor
© 2019 Ken Hickman
Chrysolepis chrysophylla var. minor
© 2016 Lynn Overtree

Cicuta douglasii    Western water hemlock
native
Perennial herb

APIACEAE

Cicuta douglasii
© 2015 Bob Case
Cicuta douglasii
© 2020 Julie A. Kierstead
Cicuta douglasii
© 2021 R.A. Chasey

Cirsium brevistylum    Clustered thistle,  Indian thistle
native
Perennial herb

ASTERACEAE

Cirsium brevistylum
© 2010 Toni Corelli
Cirsium brevistylum
© 2018 Brian Charles
Cirsium brevistylum
© 2019 Aleksandra Evert

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

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

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

Clarkia cylindrica ssp. cylindrica    Speckled clarkia
native
Annual herb

ONAGRACEAE

Clarkia cylindrica ssp. cylindrica
© 2019 David Greenberger
Clarkia cylindrica ssp. cylindrica
© 2024 Mike Russler
Clarkia cylindrica ssp. cylindrica
© 2020 Steve Laymon

Clarkia prostrata    Prostrate clarkia
native
Annual herb

ONAGRACEAE

Clarkia prostrata
© 2012 Lynn Robertson
Clarkia prostrata
© 2013 David Wolfson
Clarkia prostrata
© 2012 Lynn Robertson

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. mexicana    Southern miner's lettuce
native
Annual herb

MONTIACEAE

Claytonia perfoliata ssp. mexicana
© 2021 John Rawlings
Claytonia perfoliata ssp. mexicana
© 2002 Dean Wm. Taylor
Claytonia perfoliata ssp. mexicana
© 2014 Susan McDougall

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

RANUNCULACEAE

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

Clinopodium douglasii    Yerba buena
native
Perennial herb

LAMIACEAE

Clinopodium douglasii
© 2019 Gary McDonald
Clinopodium douglasii
© 2012 Gary McDonald
Clinopodium douglasii
© 2012 Gary McDonald

Collinsia bartsiifolia var. davidsonii    Davidson's blue eyed mary,  Davidson's collinsia
native
Annual herb

PLANTAGINACEAE

Collinsia bartsiifolia var. davidsonii
© 2015 Justin Luong
Collinsia bartsiifolia var. davidsonii
© 2022 Mike Russler
Collinsia bartsiifolia var. davidsonii
© 2022 Mike Russler

Collomia heterophylla    Variableleaf collomia,  Varied leaved collomia
native
Annual herb

POLEMONIACEAE

Collomia heterophylla
© 2023 Steve Conger
Collomia heterophylla
© 2017 Steve Matson
Collomia heterophylla
© 2024 Steve Conger

Conicosia pugioniformis    False ice plant,  Narrow leaved iceplant
invasive non-native
Perennial herb

AIZOACEAE

Conicosia pugioniformis
© 2019 Michael Chasse
Conicosia pugioniformis
© 2016 VICKI RYAL
Conicosia pugioniformis
© 2022 Mike Russler

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

Cordylanthus rigidus ssp. rigidus    Rigid bird's beak,  Stiffbranch bird's beak
native
Annual herb (hemiparasitic)

OROBANCHACEAE

Cordylanthus rigidus ssp. rigidus
© 2021 Mike Russler
Cordylanthus rigidus ssp. rigidus
© 2021 Mike Russler
Cordylanthus rigidus ssp. rigidus
© 2021 Mike Russler

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
© 2022 Mike Russler
Corethrogyne filaginifolia
© 2018 Ron Vanderhoff
Corethrogyne filaginifolia
© 2023 Ron Vanderhoff

Cornus sericea ssp. sericea    American dogwood,  Creek dogwood,  Red osier dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. sericea
© 2003 Steve Matson
Cornus sericea ssp. sericea
© 2019 Richard Spjut
Cornus sericea ssp. sericea
© 2020 Doug Allshouse

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 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 tillaea    Mediterranean pygmy weed,  Moss pygmyweed
non-native
Annual herb

CRASSULACEAE

Crassula tillaea
© 2019 Ron Vanderhoff
Crassula tillaea
© 2019 Ron Vanderhoff
Crassula tillaea
© 2019 Ron Vanderhoff

Crocanthemum scoparium    peak rush-rose,  broom rush-rose
native
Shrub

CISTACEAE

Crocanthemum scoparium
© 2020 Stacie Wolny
Crocanthemum scoparium
© 2020 Stacie Wolny
Crocanthemum scoparium
© 2020 Stacie Wolny

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 clevelandii var. florosa    Coastal cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha clevelandii var. florosa
© 2020 David Greenberger
Cryptantha clevelandii var. florosa
© 2024 Ron Vanderhoff
Cryptantha clevelandii var. florosa
© 2023 Ken-ichi Ueda

Cryptantha microstachys    Popcorn flower,  Tejon cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha microstachys
© 2019 Diane Etchison
Cryptantha microstachys
© 2018 Ron Vanderhoff
Cryptantha microstachys
© 2017 Diane Etchison

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

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 californica var. papillosa    Chaparral dodder,  Papillate dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta californica var. papillosa
© 2024 Mike Russler
Cuscuta californica var. papillosa
© 2024 Mike Russler
Cuscuta californica var. papillosa
© 2023 Keir Morse

native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta pacifica var. pacifica
© 2020 Ron Vanderhoff
Cuscuta pacifica var. pacifica
© 2020 R.A. Chasey
Cuscuta pacifica var. pacifica
© 2020 R.A. Chasey

Cuscuta subinclusa    Canyon dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta subinclusa
© 2018 Ron Vanderhoff
Cuscuta subinclusa
© 2020 Ron Vanderhoff
Cuscuta subinclusa
© 2019 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

Danthonia californica    California oatgrass
native
Perennial grass

POACEAE

Danthonia californica
© 2024 R.A. Chasey
Danthonia californica
© 2021 John Rawlings
Danthonia californica
© 2023 R.A. Chasey

Datura stramonium    Jimson weed,  Jimsonweed
non-native
Annual herb

SOLANACEAE

Datura stramonium
© 2011 Steve Matson
Datura stramonium
© 2011 Steve Matson
Datura stramonium
© 2020 Ron Vanderhoff

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

Deinandra increscens ssp. increscens    Grassland tarweed
native
Annual herb

ASTERACEAE

Deinandra increscens ssp. increscens
© 2024 Kyle Suchy
Deinandra increscens ssp. increscens
© 2011 George Williams
Deinandra increscens ssp. increscens
© 2003 Lynn Watson

Delairea odorata    Cape ivy
invasive non-native
Perennial herb

ASTERACEAE

Delairea odorata
© 2019 Ron Vanderhoff
Delairea odorata
© 2019 Ron Vanderhoff
Delairea odorata
© 2019 Ron Vanderhoff

native
Perennial herb

RANUNCULACEAE

Delphinium californicum ssp. californicum
© 2010 Toni Corelli
Delphinium californicum ssp. californicum
© 2022 R.A. Chasey
Delphinium californicum ssp. californicum
© 2022 R.A. Chasey

Dendromecon rigida    Bush poppy,  Tree poppy
native
Shrub

PAPAVERACEAE

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

Deschampsia elongata    Hairgrass,  Slender hairgrass
native
Perennial grass

POACEAE

Deschampsia elongata
© 2021 John Rawlings
Deschampsia elongata
© 2021 John Rawlings
Deschampsia elongata
© 2023 Robert Steers

Descurainia pinnata ssp. glabra    Smooth western tansy mustard,  Western tansymustard,  Yellow tansy mustard
native
Annual herb

BRASSICACEAE

Descurainia pinnata ssp. glabra
© 2022 Mike Russler
Descurainia pinnata ssp. glabra
© 2022 Mike Russler
Descurainia pinnata ssp. glabra
© 2023 R.A. Chasey

Diplacus aurantiacus var. aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Diplacus aurantiacus var. aurantiacus
© 2024 Steve Conger
Diplacus aurantiacus var. aurantiacus
© 2024 Steve Conger
Diplacus aurantiacus var. aurantiacus
© 2019 Mary Gerbic

native
Perennial herb

THEMIDACEAE

Dipterostemon capitatus ssp. capitatus
© 2008 Steve Matson
Dipterostemon capitatus ssp. capitatus
© 2023 Mike Russler
Dipterostemon capitatus ssp. capitatus
© 2016 Steve Matson

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

Dithyrea maritima    Beach shieldpod,  Beach spectaclepod
rare native
Perennial herb (rhizomatous)

BRASSICACEAE

Dithyrea maritima
© 2024 Kyle Suchy
Dithyrea maritima
© 2019 Spencer Riffle
Dithyrea maritima
© 2024 Kyle Suchy

native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. glandulosa
© 2017 Steve Matson
Drymocallis glandulosa var. glandulosa
© 2017 Steve Matson
Drymocallis glandulosa var. glandulosa
© 2021 Ron Vanderhoff

native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. wrangelliana
© 2020 Mary Conway
Drymocallis glandulosa var. wrangelliana
© 2017 Gary McDonald
Drymocallis glandulosa var. wrangelliana
© 2017 Gary McDonald

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 caespitosa    Coast dudleya,  Sand lettuce
native
Perennial herb

CRASSULACEAE

Dudleya caespitosa
© 2022 Mary Conway
Dudleya caespitosa
© 2022 Mary Conway
Dudleya caespitosa
© 2022 Cynthia Powell

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

Ehrharta calycina    Perennial veldt grass,  Perennial veldtgrass
invasive non-native
Perennial grass

POACEAE

Ehrharta calycina
© 2020 David Greenberger
Ehrharta calycina
© 2019 Ron Vanderhoff
Ehrharta calycina
© 2018 Ron Vanderhoff

Ehrharta erecta    Panic veldtgrass,  Upright veldt grass
invasive non-native
Perennial grass

POACEAE

Ehrharta erecta
© 2023 Rachel Suding
Ehrharta erecta
© 2020 Ron Vanderhoff
Ehrharta erecta
© 2020 Ron Vanderhoff

Elymus condensatus    Giant wild rye
native
Perennial grass

POACEAE

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

Elymus glaucus ssp. glaucus    Blue wild rye,  Blue wildrye,  Western rye grass
native
Perennial grass

POACEAE

Elymus glaucus ssp. glaucus
© 2023 R.A. Chasey
Elymus glaucus ssp. glaucus
© 2021 Arlee Montalvo
Elymus glaucus ssp. glaucus
© 2022 Ron Vanderhoff

Elymus mollis ssp. mollis    American dune grass, sea lyme grass
native
Perennial grass

POACEAE

Elymus mollis ssp. mollis
© 2021 Ramona Robison
Elymus mollis ssp. mollis
© 2021 Ramona Robison
Elymus mollis ssp. mollis
© 2009 Toni Corelli

Elymus pacificus    Pacific wild rye
native
Perennial grass

POACEAE

Elymus pacificus
© 2010 Toni Corelli
Elymus pacificus
© 2014 Eric Wrubel
Elymus pacificus
© 2022 John Rawlings

Elymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Elymus triticoides
© 2024 Erin Bergman
Elymus triticoides
© 2021 Ron Vanderhoff
Elymus triticoides
© 2018 Rachelle Gray

Emex spinosa    Devil's thorn,  Spiny threecornerjack
invasive non-native
Annual herb

POLYGONACEAE

Emex spinosa
© 2017 Barbara Boethling
Emex spinosa
© 2015 Ron Vanderhoff
Emex spinosa
© 2017 Barbara Boethling

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

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

EQUISETACEAE

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

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

EQUISETACEAE

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

native
Perennial herb

POLEMONIACEAE

Eriastrum densifolium ssp. densifolium
© 2018 Cindy Roessler
Eriastrum densifolium ssp. densifolium
© 2018 Cindy Roessler
Eriastrum densifolium ssp. densifolium
© 2023 Ron Vanderhoff

Ericameria ericoides    California goldenbush,  Mock heather
native
Shrub

ASTERACEAE

Ericameria ericoides
© 2021 Mike Russler
Ericameria ericoides
© 2021 Suzanne L. Weakley
Ericameria ericoides
© 2021 Mike Russler

Erigeron blochmaniae    Blochman's erigeron,  Blochman's leafy daisy
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron blochmaniae
© 2003 Christopher L. Christie
Erigeron blochmaniae
© 2010 Chris Winchell

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

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

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

Erigeron sanctarum    Saints' daisy,  Saints' fleabane
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Erigeron sanctarum
© 2023 Alex Heyman
Erigeron sanctarum
© 2024 Aaron Echols
Erigeron sanctarum
© 2023 Alex Heyman

Eriodictyon altissimum    Indian knob mountainbalm
rare native
Shrub

NAMACEAE

Eriodictyon altissimum
© 2024 Mike Russler
Eriodictyon altissimum
© 2024 Mike Russler
Eriodictyon altissimum
© 2015 David Wolfson

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

Eriophyllum multicaule    Branched woolly sunflower,  Many stemmed eriophyllum,  Manystem woolly sunflower
native
Annual herb

ASTERACEAE

Eriophyllum multicaule
© 2020 David Wolfson
Eriophyllum multicaule
© 2020 David Greenberger
Eriophyllum multicaule
© 2023 Matt Berger

Eriophyllum staechadifolium    Lizard tail,  Seaside golden yarrow,  Seaside woolly sunflower
native
Perennial herb

ASTERACEAE

Eriophyllum staechadifolium
© 2024 Steve Conger
Eriophyllum staechadifolium
© 2019 Mary Conway
Eriophyllum staechadifolium
© 2020 John Game

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 suffrutescens    Suffrutescent wallflower
rare native
Perennial herb

BRASSICACEAE

Erysimum suffrutescens
© 2020 David Greenberger
Erysimum suffrutescens
© 2020 David Greenberger
Erysimum suffrutescens
© 2024 Mike Russler

Erythranthe cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Erythranthe cardinalis
© 2023 Steve Conger
Erythranthe cardinalis
© 2014 James Gonsman
Erythranthe cardinalis
© 2023 Mary Ann Machi

Erythranthe guttata    Seep monkey flower,  Yellow monkey flower
native
Annual, Perennial herb (rhizomatous)

PHRYMACEAE

Erythranthe guttata
© 2019 Stacie Wolny
Erythranthe guttata
© 2015 James Gonsman
Erythranthe guttata
© 2019 Stacie Wolny

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

PAPAVERACEAE

Eschscholzia caespitosa
© 2019 Ron Vanderhoff
Eschscholzia caespitosa
© 2024 Dana York
Eschscholzia caespitosa
© 2024 Dana York

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 botryoides    Small Tree-Mallow


Eucalyptus camaldulensis    Red gum,  Red river gum,  River redgum
invasive non-native
Tree

MYRTACEAE

Eucalyptus camaldulensis
© 2024 Ron Vanderhoff
Eucalyptus camaldulensis
© 2022 Ron Vanderhoff
Eucalyptus camaldulensis
© 2022 Ron Vanderhoff

Eucalyptus cladocalyx    Sugar gum,  Sugargum
invasive non-native
Tree

MYRTACEAE

Eucalyptus cladocalyx
© 2017 Keir Morse
Eucalyptus cladocalyx
© 2024 Cynthia Powell
Eucalyptus cladocalyx
© 2023 Randall English

Eucalyptus conferruminata    Spider gum, bushy yate
non-native
Tree

MYRTACEAE

Eucalyptus conferruminata
© 2022 R.A. Chasey
Eucalyptus conferruminata
© 2022 R.A. Chasey
Eucalyptus conferruminata
© 2021 Jacob Smith

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

Eucalyptus tereticornis    Forest red gum,  Forest redgum
non-native
Tree

MYRTACEAE

Eucalyptus tereticornis
© 2024 David popp
Eucalyptus tereticornis
© 2024 David popp
Eucalyptus tereticornis
© 2024 David popp

Eucalyptus viminalis    Manna gum
non-native
Tree

MYRTACEAE

Eucalyptus viminalis
© Charles Webber1999 California Academy of Sciences
Eucalyptus viminalis
© 2020 Diana Wahl
Eucalyptus viminalis
© 2020 Diana Wahl

Eucrypta chrysanthemifolia var. chrysanthemifolia    Common eucrypta,  Spotted hideseed
native
Annual herb

HYDROPHYLLACEAE

Eucrypta chrysanthemifolia var. chrysanthemifolia
© 2024 Mike Russler
Eucrypta chrysanthemifolia var. chrysanthemifolia
© 2023 Ron Vanderhoff
Eucrypta chrysanthemifolia var. chrysanthemifolia
© 2024 Mike Russler

Euphorbia crenulata    Chinese caps,  Chinesecaps
native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia crenulata
© 2024 Alaine Arslan
Euphorbia crenulata
© 2008 Steve Matson
Euphorbia crenulata
© 2008 Steve Matson

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
© 2025 Donald Burk
Euphorbia peplus
© 2022 Alice Cummings
Euphorbia peplus
© 2018 MCOSD EDRR

Extriplex californica    California orach
native
Perennial herb

CHENOPODIACEAE

Extriplex californica
© 2020 Ron Vanderhoff
Extriplex californica
© 2020 Ron Vanderhoff
Extriplex californica
© 2020 Ron Vanderhoff

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

POACEAE

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

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

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

Festuca californica    California fescue
native
Perennial grass

POACEAE

Festuca californica
© 2019 Justin Luong
Festuca californica
© 2022 Justin Luong
Festuca californica
© 2021 Veronica Yates

Festuca elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

Festuca elmeri
© 2022 John Rawlings
Festuca elmeri
© 2019 Ken Hickman
Festuca elmeri
© 2019 Ken Hickman

Festuca microstachys    Small fescue
native
Annual grass

POACEAE

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

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

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

Festuca occidentalis    Western fescue
native
Perennial grass

POACEAE

Festuca occidentalis
© 2011 Steve Matson
Festuca occidentalis
© 2011 Steve Matson
Festuca occidentalis
© 2011 Steve Matson

Festuca octoflora    Sixweeks grass
native
Annual grass

POACEAE

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

Festuca perennis    Italian rye grass
invasive non-native
Annual, Perennial grass

POACEAE

Festuca perennis
© 2019 Ron Vanderhoff
Festuca perennis
© 2023 Ron Vanderhoff
Festuca perennis
© 2021 Ron Vanderhoff

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

Fragaria vesca    California strawberry,  Wild strawberry,  Wood strawberry
native
Perennial herb

ROSACEAE

Fragaria vesca
© 2024 Dana York
Fragaria vesca
© 2020 Cara Wilcox
Fragaria vesca
© 2023 R.A. Chasey

Frangula californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. californica
© 2015 Steve Matson
Frangula californica ssp. californica
© 2015 Steve Matson
Frangula californica ssp. californica
© 2019 Ron Vanderhoff

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

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

LILIACEAE

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

Fritillaria biflora var. biflora    Chocolate lily
native
Perennial herb (bulb)

LILIACEAE

Fritillaria biflora var. biflora
© 2006 Steve Matson
Fritillaria biflora var. biflora
© 2006 Steve Matson
Fritillaria biflora var. biflora
© 2006 Steve Matson

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

RUBIACEAE

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

Galium andrewsii ssp. andrewsii    Andrews' bedstraw,  Phlox leaved bedstraw
native
Perennial herb

RUBIACEAE

Galium andrewsii ssp. andrewsii
© 2018 Gary McDonald
Galium andrewsii ssp. andrewsii
© 2018 Gary McDonald
Galium andrewsii ssp. andrewsii
© 2018 Gary McDonald

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 californicum ssp. californicum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum ssp. californicum
© 2018 Ken Hickman
Galium californicum ssp. californicum
© 2017 Ken Hickman
Galium californicum ssp. californicum
© 2015 James Gonsman

Galium parisiense    Wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium parisiense
© 2020 Ron Vanderhoff
Galium parisiense
© 2021 Al Keuter
Galium parisiense
© 2023 R.A. Chasey

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

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

Gamochaeta ustulata
© 2019 Gary McDonald
Gamochaeta ustulata
© 2019 Gary McDonald
Gamochaeta ustulata
© 2019 Gary McDonald

Garrya elliptica    Coast silk tassel,  Coast silktassel,  Silk tassel bush or quinine bush
native
Tree, Shrub

GARRYACEAE

Garrya elliptica
© 2004 Michael Charters
Garrya elliptica
© 2020 John Rawlings
Garrya elliptica
© 2020 Eliezer Margolis

Gastridium phleoides    Nit grass
non-native
Annual grass

POACEAE

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

Gaultheria shallon    Salal
native
Shrub

ERICACEAE

Gaultheria shallon
© 2016 Steve Matson
Gaultheria shallon
© 2017 Mary Sue Ittner
Gaultheria shallon
© 2023 Kyle Suchy

Geranium carolinianum    Carolina geranium
native
Annual herb

GERANIACEAE

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

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

GERANIACEAE

Geranium dissectum
© 2021 Al Keuter
Geranium dissectum
© 2024 Mike Russler
Geranium dissectum
© 2014 Bryan Derr

Geranium rotundifolium    Round leaved geranium,  Roundleaf geranium
non-native
Annual herb

GERANIACEAE

Geranium rotundifolium
© 2024 Ron Vanderhoff
Geranium rotundifolium
© 2009 Dean Wm. Taylor
Geranium rotundifolium
© 2024 Ron Vanderhoff

native
Annual herb

POLEMONIACEAE

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

Grindelia hirsutula    Gumweed,  Hairy gumweed
native
Perennial herb

ASTERACEAE

Grindelia hirsutula
© 2021 R.A. Chasey
Grindelia hirsutula
© 2020 R.A. Chasey
Grindelia hirsutula
© 2015 Ken Lunders

Hazardia squarrosa var. squarrosa    Saw toothed goldenbush,  Sawtooth goldenbush
native
Shrub

ASTERACEAE

Hazardia squarrosa var. squarrosa
© 2024 Mike Russler
Hazardia squarrosa var. squarrosa
© 2024 Mike Russler
Hazardia squarrosa var. squarrosa
© 2021 Mary Conway

Hedypnois rhagadioloides    Crete weed
non-native
Annual herb

ASTERACEAE

Hedypnois rhagadioloides
© 2022 Steve Matson
Hedypnois rhagadioloides
© 2022 Steve Matson
Hedypnois rhagadioloides
© 2022 Steve Matson

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
© 2021 Mike Russler
Helenium puberulum
© 2019 Patrick Furtado
Helenium puberulum
© 2019 Stacie Wolny

Heliotropium curassavicum var. oculatum    Alkali heliotrope,  Seaside heliotrope
native
Perennial herb

HELIOTROPIACEAE

Heliotropium curassavicum var. oculatum
© 2019 Ron Vanderhoff
Heliotropium curassavicum var. oculatum
© 2018 Ron Vanderhoff
Heliotropium curassavicum var. oculatum
© 2021 Suzanne L. Weakley

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

Hesperocyparis macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

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

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

Hieracium argutum    Southern hawkweed
native
Perennial herb

ASTERACEAE

Hieracium argutum
© 2015 Keir Morse
Hieracium argutum
© 2015 Justin Luong
Hieracium argutum
© 2020 David Greenberger

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

BRASSICACEAE

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

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

FABACEAE

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

Holodiscus discolor    Cream bush,  Ocean spray,  Oceanspray
native
Shrub

ROSACEAE

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

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

POACEAE

Hordeum brachyantherum ssp. californicum
© 2021 Cynthia Powell
Hordeum brachyantherum ssp. californicum
© 2021 John Rawlings
Hordeum brachyantherum ssp. californicum
© 2021 John Rawlings

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 var. cuneata    Wedge leaved horkelia
native
Perennial herb

ROSACEAE

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

Horkelia cuneata var. sericea    Kellogg's horkelia
rare native
Perennial herb

ROSACEAE

Horkelia cuneata var. sericea
© 2021 Cara Wilcox
Horkelia cuneata var. sericea
© 2022 Irene Rosen
Horkelia cuneata var. sericea
© 2021 Cara Wilcox

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

Iris douglasiana    Douglas iris,  Douglas' iris
native
Perennial herb

IRIDACEAE

Iris douglasiana
© 2020 Susan McDougall
Iris douglasiana
© 2019 Patrick Furtado
Iris douglasiana
© 2022 Suzanne L. Weakley

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

Isolepis cernua    Low bulrush
native
Annual grasslike herb

CYPERACEAE

Isolepis cernua
© 2021 R.A. Chasey
Isolepis cernua
© 2023 R.A. Chasey
Isolepis cernua
© 2018 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

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

JUNCACEAE

Juncus acutus ssp. leopoldii
© 2025 R.A. Chasey
Juncus acutus ssp. leopoldii
© 2025 R.A. Chasey
Juncus acutus ssp. leopoldii
© 2021 Ron Vanderhoff

Juncus balticus ssp. ater    Baltic rush
native
Perennial grasslike herb

JUNCACEAE

Juncus balticus ssp. ater
© 2015 Steve Matson
Juncus balticus ssp. ater
© 2015 Steve Matson
Juncus balticus ssp. ater
© 2023 Ron Vanderhoff

Juncus breweri    Brewer's rush
native
Perennial grasslike herb

JUNCACEAE

Juncus breweri
© 2016 Steve Matson
Juncus breweri
© 2016 Steve Matson
Juncus breweri
© 2016 Steve Matson

native
Annual grasslike herb

JUNCACEAE

Juncus bufonius var. bufonius
© 2021 John Rawlings
Juncus bufonius var. bufonius
© 2023 R.A. Chasey
Juncus bufonius var. bufonius
© 2019 Ron Vanderhoff

Juncus effusus ssp. pacificus    Pacific rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus ssp. pacificus
© 2024 R.A. Chasey
Juncus effusus ssp. pacificus
© 2021 R.A. Chasey
Juncus effusus ssp. pacificus
© 2021 John Rawlings

Juncus hesperius    Coast or bog rush
native
Perennial grasslike herb

JUNCACEAE

Juncus hesperius
© 2019 Patrick Furtado
Juncus hesperius
© 2021 John Rawlings
Juncus hesperius
© 2021 John Rawlings

Juncus lescurii    Dune rush
native
Perennial grasslike herb

JUNCACEAE

Juncus lescurii
© 2009 Toni Corelli
Juncus lescurii
© 2008 Toni Corelli
Juncus lescurii
© 2008 Toni Corelli

Juncus occidentalis    Rush,  Slender juncus,  Western rush
native
Perennial grasslike herb

JUNCACEAE

Juncus occidentalis
© 2021 Toni Corelli
Juncus occidentalis
© 2021 Dick Rawson
Juncus occidentalis
© 2021 Dick Rawson

Juncus patens    Common rush,  Spreading rush
native
Perennial grasslike herb

JUNCACEAE

Juncus patens
© 2022 R.A. Chasey
Juncus patens
© 2022 R.A. Chasey
Juncus patens
© 2018 Emily Allen

Juncus phaeocephalus var. phaeocephalus    Brown headed rush,  Brownhead rush
native
Perennial grasslike herb

JUNCACEAE

Juncus phaeocephalus var. phaeocephalus
© 2019 Dee Shea Himes
Juncus phaeocephalus var. phaeocephalus
© 2024 R.A. Chasey
Juncus phaeocephalus var. phaeocephalus
© 2019 John Rawlings

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

JUNCACEAE

Juncus xiphioides
© 2025 R.A. Chasey
Juncus xiphioides
© 2017 Ron Vanderhoff
Juncus xiphioides
© 2023 R.A. Chasey

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

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

PLANTAGINACEAE

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

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

ASTERACEAE

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

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

Lastarriaea coriacea    Leather spineflower
native
Annual herb

POLYGONACEAE

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

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

Lasthenia gracilis
© 2014 Steve Matson
Lasthenia gracilis
© 2014 Steve Matson
Lasthenia gracilis
© 2014 Steve Matson

Lathyrus jepsonii var. californicus    California tule pea
native
Perennial herb

FABACEAE

Lathyrus jepsonii var. californicus
© 2024 Ryan O'Dell
Lathyrus jepsonii var. californicus
© 2020 R.A. Chasey
Lathyrus jepsonii var. californicus
© 2020 R.A. Chasey

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

FABACEAE

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

Lathyrus vestitus var. vestitus    Common pacific pea,  Hillside pea,  Wild sweetpea
native
Perennial herb

FABACEAE

Lathyrus vestitus var. vestitus
© 2019 Ron Vanderhoff
Lathyrus vestitus var. vestitus
© 2015 Chris Jaster
Lathyrus vestitus var. vestitus
© 2024 Ron Vanderhoff

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

Layia platyglossa
© 2015 Amy Rapport
Layia platyglossa
© 2019 Steve Matson
Layia platyglossa
© 2019 Steve Matson

Lepidium didymum    Lesser swine cress
non-native
Annual herb

BRASSICACEAE

Lepidium didymum
© 2022 Shawna Martinez
Lepidium didymum
© 2023 Ron Vanderhoff
Lepidium didymum
© 2023 Ron Vanderhoff

Lepidium draba    Whitetop
invasive non-native
Perennial herb

BRASSICACEAE

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

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

BRASSICACEAE

Lepidium nitidum
© 2021 Steve Matson
Lepidium nitidum
© 2016 Steve Matson
Lepidium nitidum
© 2025 Jason Flores

Lepidium strictum    Peppergrass,  Prostrate pepper grass,  Upright pepperweed
native
Annual herb

BRASSICACEAE

Lepidium strictum
© 2022 Ron Vanderhoff
Lepidium strictum
© 2022 Jim Xerogeanes
Lepidium strictum
© 2022 Ron Vanderhoff

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

Lithophragma cymbalaria    Mission star,  Mission woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma cymbalaria
© 2020 Bryant Baker
Lithophragma cymbalaria
© 2020 David Greenberger
Lithophragma cymbalaria
© 2023 Martin Schenker

Lithophragma heterophyllum    Hill star,  Hillside woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma heterophyllum
© 2019 David Greenberger
Lithophragma heterophyllum
© 2024 Suzanne L. Weakley
Lithophragma heterophyllum
© 2019 Mary Conway

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

Loeflingia squarrosa    Spreading loeflingia,  Spreading pygmyleaf
native
Annual herb

CARYOPHYLLACEAE

Loeflingia squarrosa
© 2010 Steve Matson
Loeflingia squarrosa
© 2010 Steve Matson
Loeflingia squarrosa
© 2010 Steve Matson

Logfia filaginoides    California cottonrose
native
Annual herb

ASTERACEAE

Logfia filaginoides
© 2019 Steve Matson
Logfia filaginoides
© 2019 Steve Matson
Logfia filaginoides
© 2019 Steve Matson

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

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

Lonicera hispidula    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

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

Lonicera involucrata var. ledebourii    Coast twinberry,  Twinberry honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera involucrata var. ledebourii
© 2014 James Gonsman
Lonicera involucrata var. ledebourii
© 2022 Suzanne L. Weakley
Lonicera involucrata var. ledebourii
© 2010 Toni Corelli

Lunaria annua    Annual honesty,  Annual moonwort,  Honesty
non-native
Annual, Perennial herb

BRASSICACEAE

Lunaria annua
© 2022 Suzanne L. Weakley
Lunaria annua
© 2021 Lisa Berry
Lunaria annua
© 2021 Mike Russler

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

FABACEAE

Lupinus albifrons var. albifrons
© 2020 Susan McDougall
Lupinus albifrons var. albifrons
© 2020 Richard Spjut
Lupinus albifrons var. albifrons
© 2022 Mike Russler

Lupinus arboreus    Coastal bush lupine,  Yellow bush lupine
native
Shrub

FABACEAE

Lupinus arboreus
© 2020 Steve Matson
Lupinus arboreus
© 2014 Steve Matson
Lupinus arboreus
© 2014 Steve Matson

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

FABACEAE

Lupinus bicolor
© 2018 Stacie Wolny
Lupinus bicolor
© 2022 Mike Russler
Lupinus bicolor
© 2019 Gary McDonald

Lupinus chamissonis    Beach blue lupine,  Chamisso bush lupine,  Dune bush lupine
native
Shrub

FABACEAE

Lupinus chamissonis
© 2024 R.A. Chasey
Lupinus chamissonis
© 2022 Mike Russler
Lupinus chamissonis
© 2021 Cara Wilcox

Lupinus concinnus    Bajada lupine,  Elegant lupine,  Scarlet lupine
native
Annual herb

FABACEAE

Lupinus concinnus
© 2019 Ron Vanderhoff
Lupinus concinnus
© 2017 B.J. Dion
Lupinus concinnus
© 2025 Martin Schenker

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 latifolius var. latifolius    Broad leaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius var. latifolius
© 2021 Steve Matson
Lupinus latifolius var. latifolius
© 2024 Mike Russler
Lupinus latifolius var. latifolius
© 2017 Steve Matson

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

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

Lupinus 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

native
Shrub

FABACEAE

Lupinus variicolor
© 2022 Mary Sue Ittner
Lupinus variicolor
© 2015 James Gonsman
Lupinus variicolor
© 2022 Mary Sue Ittner

Luzula comosa var. comosa    Hairy wood rush
native
Perennial grasslike herb

JUNCACEAE

Luzula comosa var. comosa
© 2018 Scot Loring
Luzula comosa var. comosa
© 2018 Scot Loring
Luzula comosa var. comosa
© 2018 Scot Loring

native
Perennial grasslike herb

JUNCACEAE

Luzula macrantha
© 2023 R.A. Chasey
Luzula macrantha
© 2022 R.A. Chasey
Luzula macrantha
© 2022 R.A. Chasey

Lysimachia arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

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

Lysimachia maritima    Sea milkwort
native
Perennial herb

MYRSINACEAE

Lysimachia maritima
© 2007 Steve Matson
Lysimachia maritima
© 2017 Steve Matson
Lysimachia maritima
© 2017 Steve Matson

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

ASTERACEAE

Madia gracilis
© 2024 Mike Russler
Madia gracilis
© 2021 Amber Bedgood
Madia gracilis
© 2019 Ron Vanderhoff

Madia sativa    Chile tarweed,  Coast tarweed,  Coastal tarweed
native
Annual herb

ASTERACEAE

Madia sativa
© 2013 Ron Vanderhoff
Madia sativa
© 2023 Margot Cunningham
Madia sativa
© 2021 Zoya Akulova-Barlow

Mahonia pinnata ssp. pinnata    California barberry,  Coast barberry,  Shiny leaf barberry
native
Shrub

BERBERIDACEAE

Mahonia pinnata ssp. pinnata
© 2022 Alice Cummings
Mahonia pinnata ssp. pinnata
© 2021 Ron Vanderhoff
Mahonia pinnata ssp. pinnata
© 2021 R.A. Chasey

Maianthemum racemosum    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum racemosum
© 2017 Steve Matson
Maianthemum racemosum
© 2018 Steve Matson
Maianthemum racemosum
© 2017 Steve Matson

Maianthemum stellatum    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum stellatum
© 2003 Steve Matson
Maianthemum stellatum
© 2003 Steve Matson
Maianthemum stellatum
© 2003 Steve Matson

Malacothrix californica    California dandelion,  Desert dandelion
native
Annual herb

ASTERACEAE

Malacothrix californica
© 2023 David Wolfson
Malacothrix californica
© 2023 David Wolfson
Malacothrix californica
© 2024 Ron Vanderhoff

Malacothrix incana    Dunedelion
rare native
Perennial herb

ASTERACEAE

Malacothrix incana
© 2020 David Greenberger
Malacothrix incana
© 2024 Mike Russler
Malacothrix incana
© 2006 Steve Matson

Malva assurgentiflora    Island mallow
native
Shrub

MALVACEAE

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

Malva neglecta    Common mallow,  Dwarf mallow
non-native
Annual, Perennial herb

MALVACEAE

Malva neglecta
© 2022 Bob Sweatt
Malva neglecta
© 2019 Randy Huey
Malva neglecta
© 2022 Bob Sweatt

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

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

Marah fabacea    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

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

Marrubium vulgare    White horehound
invasive non-native
Perennial herb

LAMIACEAE

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

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

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

Medicago lupulina    Black medick
non-native
Annual, Perennial herb

FABACEAE

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

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

FABACEAE

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

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

FABACEAE

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

Melilotus officinalis    Yellow sweetclover
non-native
Annual, Biennial herb

FABACEAE

Melilotus officinalis
© 2020 Bob Sweatt
Melilotus officinalis
© 2020 Bob Sweatt
Melilotus officinalis
© 2020 Bob Sweatt

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

LAMIACEAE

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

Mentzelia micrantha    Chaparral blazing star,  San Luis blazingstar,  San Luis stick leaf
native
Annual herb

LOASACEAE

Mentzelia micrantha
© 2019 Ron Vanderhoff
Mentzelia micrantha
© 2023 Keir Morse
Mentzelia micrantha
© 2024 Ron Vanderhoff

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

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

rare native
Annual herb

LAMIACEAE

Monardella sinuata ssp. sinuata
© 2016 John Moule
Monardella sinuata ssp. sinuata
© 2020 Melissa Mooney
Monardella sinuata ssp. sinuata
© 2017 Keir Morse

Monardella villosa ssp. obispoensis    San luis obispo coyote mint
native
Perennial herb

LAMIACEAE

Monardella villosa ssp. obispoensis
© 2019 David Wolfson
Monardella villosa ssp. obispoensis
© 2019 David Wolfson
Monardella villosa ssp. obispoensis
© 2020 Dee Shea Himes

Morella californica    California wax myrtle
native
Tree, Shrub

MYRICACEAE

Morella californica
© 2019 Michelle Karle
Morella californica
© 2020 Kim Cabera
Morella californica
© 2020 Susan McDougall

Mucronea californica    California spineflower
rare native
Annual herb

POLYGONACEAE

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

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

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

Nasturtium officinale
© 2012 Steve Matson
Nasturtium officinale
© 2012 Steve Matson
Nasturtium officinale
© 2012 Steve Matson

Navarretia atractyloides    Holly leaf navarretia,  Hollyleaf pincushionplant
native
Annual herb

POLEMONIACEAE

Navarretia atractyloides
© 2025 Mike Russler
Navarretia atractyloides
© 2023 Donald Burk
Navarretia atractyloides
© 2025 Mike Russler

Navarretia hamata ssp. parviloba    Hooked navarretia,  Small lobe navarretia
native
Annual herb

POLEMONIACEAE

Navarretia hamata ssp. parviloba
© 2023 R.A. Chasey
Navarretia hamata ssp. parviloba
© 2022 R.A. Chasey
Navarretia hamata ssp. parviloba
© 2021 Cara Wilcox

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
Tree, Shrub

FAGACEAE

Notholithocarpus densiflorus var. densiflorus
© 2020 R.A. Chasey
Notholithocarpus densiflorus var. densiflorus
© 2022 David popp
Notholithocarpus densiflorus var. densiflorus
© 2020 Susan McDougall

Nuttallanthus texanus    Blue toadflax
native
Annual, Perennial herb

PLANTAGINACEAE

Nuttallanthus texanus
© 2017 Steve Matson
Nuttallanthus texanus
© 2017 Steve Matson
Nuttallanthus texanus
© 2017 Steve Matson

Oemleria cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

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

Oenanthe sarmentosa    Pacific oenanthe,  Water parsley
native
Perennial herb

APIACEAE

Oenanthe sarmentosa
© 2021 Don Hollander
Oenanthe sarmentosa
© 2021 Ron Vanderhoff
Oenanthe sarmentosa
© 2021 Rosaleen

Oenothera elata ssp. hookeri    Common evening primrose,  Evening primrose,  Hooker's evening primrose
native
Perennial herb

ONAGRACEAE

Oenothera elata ssp. hookeri
© 2020 Suzanne L. Weakley
Oenothera elata ssp. hookeri
© 2018 Suzanne L. Weakley
Oenothera elata ssp. hookeri
© 2018 Toni Corelli

Osmorhiza berteroi    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza berteroi
© 2006 Steve Matson
Osmorhiza berteroi
© 2006 Steve Matson
Osmorhiza berteroi
© 2006 Steve Matson

Oxalis corniculata    Creeping wood sorrel,  Creeping woodsorrel,  Yellow sorrel
invasive non-native
Perennial herb

OXALIDACEAE

Oxalis corniculata
© 2021 Ron Vanderhoff
Oxalis corniculata
© 2022 Ron Vanderhoff
Oxalis corniculata
© 2021 Ron Vanderhoff

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

Oxalis pilosa    Hairy wood sorrel
native
Annual herb

OXALIDACEAE

Oxalis pilosa
© 2022 R.A. Chasey
Oxalis pilosa
© 2022 Cynthia Powell
Oxalis pilosa
© 2022 Ken-ichi Ueda

Oxybasis macrosperma    Small Tree-Mallow


Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

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

Papaver californicum    Fire poppy,  Western poppy
native
Annual herb

PAPAVERACEAE

Papaver californicum
© 2014 Ron Vanderhoff
Papaver californicum
© 2015 Ron Vanderhoff
Papaver californicum
© 2020 Bryant Baker

Papaver somniferum    Opium poppy
non-native
Annual herb

PAPAVERACEAE

Papaver somniferum
© 2021 Ken Lunders
Papaver somniferum
© 2022 David Strauch
Papaver somniferum
© 2023 Jennifer Mo

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

Pedicularis densiflora    Warrior's plume,  Indian warrior
native
Perennial herb

OROBANCHACEAE

Pedicularis densiflora
© 2015 Dee Warenycia
Pedicularis densiflora
© 2019 Jason Mills
Pedicularis densiflora
© 2024 Mary Ann Machi

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

Pellaea andromedifolia
© 2023 Steve Conger
Pellaea andromedifolia
© 2021 Steve Matson
Pellaea andromedifolia
© 2021 Mike Russler

native
Fern

PTERIDACEAE

Pentagramma triangularis ssp. triangularis
© 2008 Steve Matson
Pentagramma triangularis ssp. triangularis
© 2008 Steve Matson
Pentagramma triangularis ssp. triangularis
© 2019 Gary McDonald

Phacelia douglasii var. douglasii    Douglas' phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia douglasii var. douglasii
© 2019 Michael Mitchell
Phacelia douglasii var. douglasii
© 2014 Michael Mitchell
Phacelia douglasii var. douglasii
© 2019 Michael Mitchell

Phacelia malvifolia    Stinging phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia malvifolia
© 2018 Michael Mitchell
Phacelia malvifolia
© 2022 R.A. Chasey
Phacelia malvifolia
© 2018 Rebecca Schoenenberger

Phacelia nemoralis ssp. nemoralis    Woods phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia nemoralis ssp. nemoralis
© 2020 Ken Hickman
Phacelia nemoralis ssp. nemoralis
© 2016 Glen Schneider
Phacelia nemoralis ssp. nemoralis
© 2021 Dianne Lake

Phacelia ramosissima    Branching phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia ramosissima
© 2005 Steve Matson
Phacelia ramosissima
© 2022 Rosalind Helfand
Phacelia ramosissima
© 2020 Ron Vanderhoff

Phacelia viscida var. viscida    Sticky phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia viscida var. viscida
© 2024 Mike Russler
Phacelia viscida var. viscida
© 2024 Mike Russler
Phacelia viscida var. viscida
© 2024 Mike Russler

Phalaris californica    California canarygrass,  Canarygrass
native
Perennial grass

POACEAE

Phalaris californica
© 2021 Dan Quinn
Phalaris californica
© 2017 Toni Corelli
Phalaris californica
© 2018 Brian Charles

Phalaris minor    Little seed canarygrass,  Littleseed canarygrass,  Mediterranean canarygrass
non-native
Annual grass

POACEAE

Phalaris minor
© 2024 John Rawlings
Phalaris minor
© 2023 Ron Vanderhoff
Phalaris minor
© 2023 Ron Vanderhoff

Pholisma arenarium    Desert christmas tree,  Desert pholisma,  Dune food
native
Perennial herb (parasitic)

LENNOACEAE

Pholisma arenarium
© 2020 David Greenberger
Pholisma arenarium
© 2018 Christopher Stevenson
Pholisma arenarium
© 2020 Matt Berger

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

native
Shrub (parasitic)

VISCACEAE

Phoradendron villosum ssp. villosum
© 2022 David popp
Phoradendron villosum ssp. villosum
© 2020 R.A. Chasey
Phoradendron villosum ssp. villosum
© 2021 R.A. Chasey

Phyllospadix scouleri    Scouler's surfgrass,  Surf grass
native
Perennial herb

ZOSTERACEAE

Phyllospadix scouleri
© 2010 Avis Boutell
Phyllospadix scouleri
© 2010 Avis Boutell
Phyllospadix scouleri
© 2019 Patrick Furtado

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

ZOSTERACEAE

Phyllospadix torreyi
© 2018 Ron Vanderhoff
Phyllospadix torreyi
© 2022 Ron Vanderhoff
Phyllospadix torreyi
© 2022 Neil Uelman

Pinus muricata    Bishop pine,  Bull pine,  Prickle cone pine
native
Tree

PINACEAE

Pinus muricata
© 2012 Michael Mitchell
Pinus muricata
© 2012 Michael Mitchell
Pinus muricata
© 2023 Karen Swift

Pinus radiata    Monterey pine
native
Tree

PINACEAE

Pinus radiata
© 2011 Toni Corelli
Pinus radiata
© 2012 Michael Mitchell
Pinus radiata
© 2012 Michael Mitchell

Piperia michaelii    Michael's piperia,  Michael's rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia michaelii
© 2019 stephen rosenthal
Piperia michaelii
© 2023 John Rawlings
Piperia michaelii
© 2024 Maya Avendano

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 lanceolata    English plantain,  Narrow leaved plantain,  Ribgrass
invasive non-native
Perennial herb

PLANTAGINACEAE

Plantago lanceolata
© 2008 Steve Matson
Plantago lanceolata
© 2019 Joe Engelbrecht
Plantago lanceolata
© 2021 Ken Lunders

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

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

Plantago maritima    Alkali plantain,  Goose tongue,  Maritime plantain
native
Perennial herb

PLANTAGINACEAE

Plantago maritima
© 2018 Adam Chasey
Plantago maritima
© 2021 Jamie Spielmann
Plantago maritima
© 2020 Ken Hickman

Plantago subnuda    Mexican plantain,  Naked plantain,  Tall coastal plantain
native
Perennial herb

PLANTAGINACEAE

Plantago subnuda
© 2019 Patrick Furtado
Plantago subnuda
© 2022 Dianne Lake
Plantago subnuda
© 2009 Toni Corelli

Plectritis ciliosa    Long spurred plectritis,  Longspur seablush
native
Annual herb

VALERIANACEAE

Plectritis ciliosa
© 2022 Steve Matson
Plectritis ciliosa
© 2022 Steve Matson
Plectritis ciliosa
© 2023 Helen Hancock

Poa annua    Annual blue grass,  Annual bluegrass
non-native
Annual grass

POACEAE

Poa annua
© 2021 Ron Vanderhoff
Poa annua
© 2022 John Rawlings
Poa annua
© 2015 Richard Chasey

Poa diaboli    Diablo canyon blue grass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa diaboli
© 2023 Chloe and Trevor Van Loon
Poa diaboli
© 2023 Chloe and Trevor Van Loon
Poa diaboli
© 2023 Chloe and Trevor Van Loon

Poa secunda ssp. secunda    One sided blue grass,  Pine bluegrass,  Sandberg's bluegrass
native
Perennial grass

POACEAE

Poa secunda ssp. secunda
© 2018 Ron Vanderhoff
Poa secunda ssp. secunda
© 2018 Ron Vanderhoff
Poa secunda ssp. secunda
© 2018 Ron Vanderhoff

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

Polygonum aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare
© 2023 Ron Vanderhoff
Polygonum aviculare
© 2023 Cynthia Powell
Polygonum aviculare
© 2021 Ron Vanderhoff

Polygonum aviculare ssp. aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare ssp. aviculare
© 2023 Ron Vanderhoff
Polygonum aviculare ssp. aviculare
© 2022 Ron Vanderhoff
Polygonum aviculare ssp. aviculare
© 2022 John Doyen

Polygonum paronychia    Beach knotweed,  Dune knotweed
native
Perennial herb

POLYGONACEAE

Polygonum paronychia
© 2016 Steve Matson
Polygonum paronychia
© 2016 Steve Matson
Polygonum paronychia
© 2016 Steve Matson

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

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

Polypodium calirhiza    Acrid fern,  Licorice fern,  Nested polypody
native
Fern

POLYPODIACEAE

Polypodium calirhiza
© 2022 BOB CASE
Polypodium calirhiza
© 2015 James Gonsman
Polypodium calirhiza
© 2020 Susan McDougall

Polypogon australis    Chilean beard grass,  Chilean rabbitsfoot grass
non-native
Perennial grass

POACEAE

Polypogon australis
© 2018 Elliot Gunnison
Polypogon australis
© 2020 David popp
Polypogon australis
© 2018 Elliot Gunnison

Polypogon interruptus    Ditch beard grass,  Ditch rabbitsfoot grass
non-native
Perennial grass

POACEAE

Polypogon interruptus
© 2022 John Rawlings
Polypogon interruptus
© 2022 John Rawlings
Polypogon interruptus
© 2020 Ron Vanderhoff

Polypogon monspeliensis    Annual beard grass,  Rabbitsfoot grass
invasive non-native
Annual grass

POACEAE

Polypogon monspeliensis
© 2008 Steve Matson
Polypogon monspeliensis
© 2014 Steve Matson
Polypogon monspeliensis
© 2008 Steve Matson

Polypogon viridis    Water beard grass
non-native
Perennial grass

POACEAE

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

Polystichum dudleyi    Dudley's sword fern,  Dudley's swordfern
native
Fern

DRYOPTERIDACEAE

Polystichum dudleyi
© 2021 John Rawlings
Polystichum dudleyi
© 2019 Joerg Lohse
Polystichum dudleyi
© 2023 R.A. Chasey

Polystichum munitum    Western sword fern,  Western swordfern
native
Fern

DRYOPTERIDACEAE

Polystichum munitum
© 2021 Julie A. Kierstead
Polystichum munitum
© 2022 Jerry Murray
Polystichum munitum
© 2011 Toni Corelli

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

Populus trichocarpa
© 2019 Ron Vanderhoff
Populus trichocarpa
© 2012 Steve Matson
Populus trichocarpa
© 2021 Ron Vanderhoff

Potentilla anserina ssp. pacifica    Pacific potentilla,  Silverweed
native
Perennial herb

ROSACEAE

Potentilla anserina ssp. pacifica
© 2022 R.A. Chasey
Potentilla anserina ssp. pacifica
© 2021 Charles Russell
Potentilla anserina ssp. pacifica
© 2022 R.A. Chasey

Prunus fasciculata var. punctata    Desert almond,  Sand almond
rare native
Shrub

ROSACEAE

Prunus fasciculata var. punctata
© 2024 Mike Russler
Prunus fasciculata var. punctata
© 2024 Mike Russler
Prunus fasciculata var. punctata
© 2024 Mike Russler

Prunus ilicifolia var. ilicifolia    Holly leaf cherry,  Hollyleaf cherry
native
Tree, Shrub

ROSACEAE

Prunus ilicifolia var. ilicifolia
© 2023 Helen Hancock
Prunus ilicifolia var. ilicifolia
© 2024 Mike Russler
Prunus ilicifolia var. ilicifolia
© 2022 Ron Vanderhoff

native
Perennial herb

ASTERACEAE

Pseudognaphalium beneolens
© 2021 BLM Redding Field Office
Pseudognaphalium beneolens
© 2021 Mike Russler
Pseudognaphalium beneolens
© 2021 R.A. Chasey

Pseudognaphalium biolettii    Two-color rabbit-tobacco
native
Perennial herb

ASTERACEAE

Pseudognaphalium biolettii
© 2019 David Greenberger
Pseudognaphalium biolettii
© 2019 Ron Vanderhoff
Pseudognaphalium biolettii
© 2019 Ron Vanderhoff

Pseudognaphalium californicum    Ladies' tobacco
native
Annual, Perennial herb

ASTERACEAE

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

Pseudognaphalium luteoalbum    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Pseudognaphalium luteoalbum
© 2021 Ron Vanderhoff
Pseudognaphalium luteoalbum
© 2019 Diane Etchison
Pseudognaphalium luteoalbum
© 2015 Chris Jaster

Pseudognaphalium ramosissimum    Pink cudweed
native
Annual, Biennial herb

ASTERACEAE

Pseudognaphalium ramosissimum
© 2021 R.A. Chasey
Pseudognaphalium ramosissimum
© 2018 Parker Santiago
Pseudognaphalium ramosissimum
© 2017 Gary McDonald

Pseudognaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

Pseudognaphalium stramineum
© 2017 Gary McDonald
Pseudognaphalium stramineum
© 2017 Gary McDonald
Pseudognaphalium stramineum
© 2017 Gary McDonald

Psilocarphus tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus
© 2006 Steve Matson
Psilocarphus tenellus
© 2006 Steve Matson
Psilocarphus 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 var. agrifolia    California live oak,  Coast live oak
native
Tree

FAGACEAE

Quercus agrifolia var. agrifolia
© 2023 Ron Vanderhoff
Quercus agrifolia var. agrifolia
© 2022 Ron Vanderhoff
Quercus agrifolia var. agrifolia
© 2021 Al Keuter

Quercus chrysolepis    Canyon live oak,  Canyon oak, maul oak, goldcup oak,  Gold cup oak
native
Tree

FAGACEAE

Quercus chrysolepis
© 2017 Aaron Sunshine
Quercus chrysolepis
© 2020 R.A. Chasey
Quercus chrysolepis
© 2018 joaquin hale

Rafinesquia californica    California chicory,  California plumseed
native
Annual herb

ASTERACEAE

Rafinesquia californica
© 2022 Ron Vanderhoff
Rafinesquia californica
© 2021 Ron Vanderhoff
Rafinesquia californica
© 2020 stephen rosenthal

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus californicus
© 2016 Steve Matson
Ranunculus californicus
© 2016 Steve Matson
Ranunculus californicus
© 2016 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

Ribes divaricatum var. pubiflorum    Spreading gooseberry,  Straggly gooseberry
native
Shrub

GROSSULARIACEAE

Ribes divaricatum var. pubiflorum
© 2024 emmashelton
Ribes divaricatum var. pubiflorum
© 2024 emmashelton
Ribes divaricatum var. pubiflorum
© 2012 Terrence Gosliner

Ribes malvaceum var. indecorum    White flowering currant,  Whiteflower currant
native
Shrub

GROSSULARIACEAE

Ribes malvaceum var. indecorum
© 2020 Diane Etchison
Ribes malvaceum var. indecorum
© 2020 Diane Etchison
Ribes malvaceum var. indecorum
© 2020 Diane Etchison

Ribes menziesii var. menziesii    Canyon gooseberry
native
Shrub

GROSSULARIACEAE

Ribes menziesii var. menziesii
© 2018 Rebecca Schoenenberger
Ribes menziesii var. menziesii
© 2019 Michael Mitchell
Ribes menziesii var. menziesii
© 2018 Rebecca Schoenenberger

Ribes sanguineum var. glutinosum    Blood currant,  Flowering currant,  Pink flowering currant
native
Shrub

GROSSULARIACEAE

Ribes sanguineum var. glutinosum
© 2025 Mary Ann Machi
Ribes sanguineum var. glutinosum
© 2016 Steve Matson
Ribes sanguineum var. glutinosum
© 2017 Steve Matson

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

Rosa californica    California wild rose,  California wildrose
native
Shrub

ROSACEAE

Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2025 Mike Russler

Rosa spithamea    Ground rose,  Sonoma rose
native
Shrub

ROSACEAE

Rosa spithamea
© 2021 David Gowen
Rosa spithamea
© Silverado Jim
Rosa spithamea
© 2020 David Krause

Rubus parviflorus    Western thimbleberry,  Thimbleberry
native
Vine, Shrub

ROSACEAE

Rubus parviflorus
© 2022 Zoya Akulova-Barlow
Rubus parviflorus
© 2020 Mary Sue Ittner
Rubus parviflorus
© 2018 Abbot Chambers

Rubus ursinus    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus ursinus
© 2018 Ken Lunders
Rubus ursinus
© 2019 Ron Vanderhoff
Rubus ursinus
© 2015 Kelli Kallenborn

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella
© 2017 Gary McDonald
Rumex acetosella
© 2008 Steve Matson
Rumex acetosella
© 2019 Patrick Furtado

Rumex conglomeratus    Clustered dock,  Green dock
non-native
Perennial herb

POLYGONACEAE

Rumex conglomeratus
© 2020 Ron Vanderhoff
Rumex conglomeratus
© 2023 Ron Vanderhoff
Rumex conglomeratus
© 2023 Ron Vanderhoff

Rumex crispus    Curly dock,  Curly leaved dock,  Rhubarb
invasive non-native
Perennial herb

POLYGONACEAE

Rumex crispus
© 2018 Tim Lewis
Rumex crispus
© 2019 Diane Etchison
Rumex crispus
© 2023 Ron Vanderhoff

Rumex 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

Rupertia physodes    California tea,  Common rupertia,  Forest scurfpea
native
Perennial herb

FABACEAE

Rupertia physodes
© 2021 Mary Ann Machi
Rupertia physodes
© 2023 Steve Conger
Rupertia physodes
© 2020 R.A. Chasey

Sagina apetala    Annual pearlwort,  Dwarf pearlwort,  Sticky pearlwort
non-native
Annual herb

CARYOPHYLLACEAE

Sagina apetala
© 2022 Donald Burk
Sagina apetala
© 2022 Donald Burk
Sagina apetala
© 2023 R.A. Chasey

Sagina decumbens ssp. occidentalis    Western pearlwort
native
Annual herb

CARYOPHYLLACEAE

Sagina decumbens ssp. occidentalis
© 2019 Ron Vanderhoff
Sagina decumbens ssp. occidentalis
© 2019 Ron Vanderhoff
Sagina decumbens ssp. occidentalis
© 2019 Ron Vanderhoff

Salicornia pacifica    Glasswort,  Pacific swampfire,  Pickleweed
native
Perennial herb

CHENOPODIACEAE

Salicornia pacifica
© 2024 R.A. Chasey
Salicornia pacifica
© 2020 Ron Vanderhoff
Salicornia pacifica
© 2018 Ron Vanderhoff

Salix lasiandra var. lasiandra    Pacific willow
native
Tree

SALICACEAE

Salix lasiandra var. lasiandra
© 2021 Alice Cummings
Salix lasiandra var. lasiandra
© 2021 Diane Renshaw
Salix lasiandra var. lasiandra
© 2017 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

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

Salvia spathacea    Hummingbird sage
native
Perennial herb

LAMIACEAE

Salvia spathacea
© 2020 David Wolfson
Salvia spathacea
© 2020 Abby Nichols
Salvia spathacea
© 2015 Garth Wadsworth

Sambucus nigra ssp. caerulea    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

Sambucus nigra ssp. caerulea
© 2021 Mike Russler
Sambucus nigra ssp. caerulea
© 2020 Diane Etchison
Sambucus nigra ssp. caerulea
© 2022 El Byrne

Sanicula crassicaulis    Gamble weed,  Pacific blacksnakeroot,  Pacific sanicle
native
Perennial herb

APIACEAE

Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2021 Steve Laymon

Sanicula laciniata    Coast sanicle,  Coastal blacksnakeroot
native
Perennial herb

APIACEAE

Sanicula laciniata
© 2022 Alice Cummings
Sanicula laciniata
© 2020 Mary Conway
Sanicula laciniata
© 2018 Ken Hickman

Schoenoplectus americanus    Chairmaker's bulrush
native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus americanus
© 2021 Ron Vanderhoff
Schoenoplectus americanus
© 2016 Joan Hampton
Schoenoplectus americanus
© 2020 Ron Vanderhoff

Scirpus microcarpus    Panicled bulrush,  Small fruited bulrush
native
Perennial grasslike herb

CYPERACEAE

Scirpus microcarpus
© 2022 Doug Allshouse
Scirpus microcarpus
© 2008 Steve Matson
Scirpus microcarpus
© 2013 Ron Vanderhoff

Scrophularia californica ssp. californica    California bee plant,  California figwort
native
Perennial herb

SCROPHULARIACEAE

Scrophularia californica ssp. californica
© 2020 Bob Sweatt
Scrophularia californica ssp. californica
© 2006 Steve Matson
Scrophularia californica ssp. californica
© 2019 Cynthia Powell

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

Senecio aphanactis    California groundsel,  Chaparral ragwort,  Rayless ragwort
rare native
Annual herb

ASTERACEAE

Senecio aphanactis
© 2023 Matt Berger
Senecio aphanactis
© 2019 Matt Berger
Senecio aphanactis
© 2023 Matt Berger

Senecio blochmaniae    Dune ragwort
rare native
Shrub

ASTERACEAE

Senecio blochmaniae
© 2024 David Wolfson
Senecio blochmaniae
© 2020 David Greenberger
Senecio blochmaniae
© 2020 David Wolfson

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 glomeratus    Cutleaf burnweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Senecio glomeratus
© 2015 Lynn Overtree
Senecio glomeratus
© 2023 R.A. Chasey
Senecio glomeratus
© 2021 Mary Conway

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

Senna multiglandulosa    Glandular cassia
non-native
Shrub

FABACEAE

Senna multiglandulosa
© 2025 David Wolfson
Senna multiglandulosa
© 2023 Kathy Fulton
Senna multiglandulosa
© 2022 Tracy Pham

Sidalcea malviflora ssp. laciniata    Dwarf checkerbloom,  Laciniate checker mallow
native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea malviflora ssp. laciniata
© 2024 Mike Russler
Sidalcea malviflora ssp. laciniata
© 2021 Maria Stokes
Sidalcea malviflora ssp. laciniata
© 2024 Mike Russler

Sidalcea sparsifolia    Southern checkerbloom
native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea sparsifolia
© 2022 Emily Sluiman
Sidalcea sparsifolia
© 2025 Ron Vanderhoff
Sidalcea sparsifolia
© 2019 Bonnie Nickel

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. laciniata    Cardinal catchfly
native
Perennial herb

CARYOPHYLLACEAE

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

Sisymbrium irio    London rocket
invasive non-native
Annual herb

BRASSICACEAE

Sisymbrium irio
© 2022 Ron Vanderhoff
Sisymbrium irio
© 2022 Ron Vanderhoff
Sisymbrium irio
© 2022 Mike Russler

Sisymbrium officinale    Hedge mustard,  Hedgemustard
non-native
Annual herb

BRASSICACEAE

Sisymbrium officinale
© 2021 Ann Garside
Sisymbrium officinale
© 2022 Julian Geoghegan
Sisymbrium officinale
© 2021 Ron Vanderhoff

Sisyrinchium bellum    Western blue eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium bellum
© 2024 Steve Conger
Sisyrinchium bellum
© 2024 Ron Vanderhoff
Sisyrinchium bellum
© 2019 Stacie Wolny

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 umbelliferum var. xanti    Blue witch nightshade,  Bluewitch nightshade
native
Shrub

SOLANACEAE

Solanum umbelliferum var. xanti
© 2014 Steve Matson
Solanum umbelliferum var. xanti
© 2014 Steve Matson
Solanum umbelliferum var. xanti
© 2014 Steve Matson

Solidago confinis    Southern goldenrod
native
Perennial herb

ASTERACEAE

Solidago confinis
© 2022 Ryan O'Dell
Solidago confinis
© 2021 Arlee Montalvo
Solidago confinis
© 2021 Arlee Montalvo

Solidago spathulata    Dune goldenrod
native
Perennial herb

ASTERACEAE

Solidago spathulata
© 2016 Steve Matson
Solidago spathulata
© 2016 Steve Matson
Solidago spathulata
© 2016 Steve Matson

Solidago velutina ssp. californica    California goldenrod,  Oreja de liebre
native
Perennial herb

ASTERACEAE

Solidago velutina ssp. californica
© 2013 Steve Matson
Solidago velutina ssp. californica
© 2008 Steve Matson
Solidago velutina ssp. californica
© 2008 Steve Matson

Soliva sessilis    Common soliva,  Field burrweed,  South american soliva
non-native
Annual herb

ASTERACEAE

Soliva sessilis
© 2023 R.A. Chasey
Soliva sessilis
© 2019 Abbot Chambers
Soliva sessilis
© 2019 Abbot Chambers

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

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis
© 2019 Diane Etchison
Spergula arvensis
© 2022 David Strauch
Spergula arvensis
© 2022 Cynthia Powell

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

CARYOPHYLLACEAE

Spergularia macrotheca var. macrotheca
© 2023 R.A. Chasey
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 rubra    Purple sand spurry,  Red sandspurry,  Ruby sandspurry
non-native
Annual, Perennial herb

CARYOPHYLLACEAE

Spergularia rubra
© 2023 Ron Vanderhoff
Spergularia rubra
© 2023 Ron Vanderhoff
Spergularia rubra
© 2023 Ron Vanderhoff

Stachys bullata    California hedge nettle,  California hedgenettle,  Southern hedge nettle
native
Perennial herb

LAMIACEAE

Stachys bullata
© 2014 Steve Matson
Stachys bullata
© 2014 Steve Matson
Stachys bullata
© 2014 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

Stellaria nitens    Shining chickweed,  Shiny chickweed,  Smooth chickweed
native
Annual herb

CARYOPHYLLACEAE

Stellaria nitens
© 2022 Catherine Chang
Stellaria nitens
© 2023 Ron Vanderhoff
Stellaria nitens
© 2020 Ken Hickman

Stellaria pallida    Pale starwort
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria pallida
© 2022 Donald Burk
Stellaria pallida
© 2004 Keir Morse
Stellaria pallida
© 2004 Keir Morse

Stephanomeria elata    Annual mitra,  Santa barbara stephanomeria,  Santa barbara wirelettuce
native
Annual herb

ASTERACEAE

Stephanomeria elata
© 2022 Sara Timby
Stephanomeria elata
© 2018 Julian Geoghegan
Stephanomeria elata
© 2021 Helen Hancock

Stephanomeria exigua ssp. carotifera    White plume stephanomeria,  Whiteplume wirelettuce
native
Perennial herb

ASTERACEAE

Stephanomeria exigua ssp. carotifera
© 2018 Mary Conway
Stephanomeria exigua ssp. carotifera
© 2018 Mary Conway
Stephanomeria exigua ssp. carotifera
© 2018 Mary Conway

Stephanomeria exigua ssp. coronaria    Milk aster,  White plume wirelettuce,  Whiteplume wirelettuce
native
Annual herb

ASTERACEAE

Stephanomeria exigua ssp. coronaria
© 2024 Mike Russler
Stephanomeria exigua ssp. coronaria
© 2024 Mike Russler
Stephanomeria exigua ssp. coronaria
© 2023 Ryan O'Dell

Stipa lepida    Foothill needle grass
native
Perennial grass

POACEAE

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

Stipa pulchra    Purple needle grass
native
Perennial grass

POACEAE

Stipa pulchra
© 2019 Michelle Karle
Stipa pulchra
© 2008 Zoya Akulova
Stipa pulchra
© 2019 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

Suaeda californica    California seablite
rare native
Shrub

CHENOPODIACEAE

Suaeda californica
© 2022 Cynthia Powell
Suaeda californica
© 2020 R.A. Chasey
Suaeda californica
© 2024 Mike Russler

Symphoricarpos albus var. laevigatus    Common snowberry,  Upright snowberry,  Snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos albus var. laevigatus
© 2020 Jacob Smith
Symphoricarpos albus var. laevigatus
© 2020 Jacob Smith
Symphoricarpos albus var. laevigatus
© 2021 Mike Russler

Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos mollis
© 2022 Dana York
Symphoricarpos mollis
© 2020 Cara Wilcox
Symphoricarpos mollis
© 2019 Ron Vanderhoff

Symphyotrichum chilense    California aster,  Pacific aster
native
Perennial herb

ASTERACEAE

Symphyotrichum chilense
© 2020 Suzanne L. Weakley
Symphyotrichum chilense
© 2013 Arcangelo Wessells
Symphyotrichum chilense
© 2018 Stacie Wolny

Taraxacum officinale    Common dandelion
invasive non-native
Perennial herb

ASTERACEAE

Taraxacum officinale
© 2021 Ron Vanderhoff
Taraxacum officinale
© 2019 Diane Etchison
Taraxacum officinale
© 2021 Ron Vanderhoff

Tetragonia tetragonoides    New zealand spinach
non-native
Annual herb

AIZOACEAE

Tetragonia tetragonoides
© 2021 Michelle Karle
Tetragonia tetragonoides
© 2021 Michelle Karle
Tetragonia tetragonoides
© 2023 Ron Vanderhoff

Thalictrum fendleri var. polycarpum    Fendler's meadow rue,  Meadow rue,  Torrey's meadow rue
native
Perennial herb

RANUNCULACEAE

Thalictrum fendleri var. polycarpum
© 2017 Thomas Reyes
Thalictrum fendleri var. polycarpum
© 2019 Patrick Furtado
Thalictrum fendleri var. polycarpum
© 2020 Diane Etchison

native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes ssp. curvipes
© 2016 Steve Matson
Thysanocarpus curvipes ssp. curvipes
© 2016 Steve Matson
Thysanocarpus curvipes ssp. curvipes
© 2016 Steve Matson

Torilis arvensis    Field hedge parsley,  Spreading hedgeparsley,  Tall Sock-Destroyer
invasive non-native
Annual herb

APIACEAE

Torilis arvensis
© 2019 Ron Vanderhoff
Torilis arvensis
© 2017 Gary McDonald
Torilis arvensis
© 2018 Lindsey Hack

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

Trifolium depauperatum var. amplectens    Balloon sack clover,  Pale bladder clover,  Pale sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum var. amplectens
© 2018 David Greenberger
Trifolium depauperatum var. amplectens
© 2023 R.A. Chasey
Trifolium depauperatum var. amplectens
© 2018 David Greenberger

Trifolium gracilentum    Graceful clover,  Pin point clover,  Pinpoint clover
native
Annual herb

FABACEAE

Trifolium gracilentum
© 2016 Steve Matson
Trifolium gracilentum
© 2016 Steve Matson
Trifolium gracilentum
© 2016 Steve Matson

Trifolium microcephalum    Hairy clover,  Small headed clover
native
Annual herb

FABACEAE

Trifolium microcephalum
© 2005 Steve Matson
Trifolium microcephalum
© 2016 Michael Mitchell
Trifolium microcephalum
© 2019 Ron Vanderhoff

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2018 Stacie Wolny

native
Perennial herb (aquatic)

JUNCAGINACEAE

Triglochin concinna var. concinna
© 2021 Ken-ichi Ueda
Triglochin concinna var. concinna
© 2021 Ken-ichi Ueda
Triglochin concinna var. concinna
© 2021 Ken-ichi Ueda

Trillium angustipetalum    Narrow petaled wakerobin,  Narrowpetal wakerobin
native
Perennial herb

MELANTHIACEAE

Trillium angustipetalum
© 2019 Kolby Lundgren
Trillium angustipetalum
© 2015 Nathan Feldman
Trillium angustipetalum
© 2025 Mary Ann Machi

Triticum aestivum    Common wheat,  Wheat
non-native
Annual grass

POACEAE

Triticum aestivum
© 2022 Lenihan Mazur
Triticum aestivum
© 2021 John Rawlings
Triticum aestivum
© 2011 Toni Corelli

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

Turritis glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Turritis glabra
© 2017 Steve Matson
Turritis glabra
© 2017 Steve Matson
Turritis glabra
© 2017 Steve Matson

Typha domingensis    Narrowleaf cattail,  Southern cattail
native
Perennial herb

TYPHACEAE

Typha domingensis
© 2020 Ron Vanderhoff
Typha domingensis
© 2020 Ron Vanderhoff
Typha domingensis
© 2023 Ron Vanderhoff

Typha latifolia    Broadleaf cattail,  Common cattail,  Soft flag
native
Perennial herb (aquatic)

TYPHACEAE

Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson

Umbellularia californica    Bay laurel,  California bay,  California laurel, bay tree
native
Tree

LAURACEAE

Umbellularia californica
© 2023 Mary Ann Machi
Umbellularia californica
© 2016 Steve Matson
Umbellularia californica
© 2023 Mary Ann Machi

Uropappus lindleyi    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

Uropappus lindleyi
© 2019 Zack Abbey
Uropappus lindleyi
© 2019 Ron Vanderhoff
Uropappus lindleyi
© 2016 Ron Vanderhoff

Urtica dioica ssp. holosericea    Giant creek nettle,  Hoary nettle,  Mountain nettle
native
Perennial herb

URTICACEAE

Urtica dioica ssp. holosericea
© 2014 Steve Matson
Urtica dioica ssp. holosericea
© 2014 Steve Matson
Urtica dioica ssp. holosericea
© 2014 Steve Matson

Urtica urens    Annual stinging nettle,  Dwarf nettle
non-native
Annual herb

URTICACEAE

Urtica urens
© 2019 Gary McDonald
Urtica urens
© 2022 Ron Vanderhoff
Urtica urens
© 2024 Lizbeth Velasco

Vaccinium ovatum    California huckleberry,  Evergreen huckleberry
native
Shrub

ERICACEAE

Vaccinium ovatum
© 2017 James Gonsman
Vaccinium ovatum
© 2015 Chris Jaster
Vaccinium ovatum
© 2021 Mike Russler

Verbena lasiostachys var. lasiostachys    Vervain,  Western vervain
native
Perennial herb

VERBENACEAE

Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2019 Mary Conway

Vicia americana ssp. americana    American vetch
native
Perennial herb, Vine

FABACEAE

Vicia americana ssp. americana
© 2008 Steve Matson
Vicia americana ssp. americana
© 2008 Steve Matson
Vicia americana ssp. americana
© 2008 Steve Matson

Vicia gigantea    Giant vetch
native
Perennial herb

FABACEAE

Vicia gigantea
© 2022 morganstickrod
Vicia gigantea
© 2006 Steve Matson
Vicia gigantea
© 2006 Steve Matson

Vicia hassei    Hasse's vetch
native
Vine

FABACEAE

Vicia hassei
© 2023 R.A. Chasey
Vicia hassei
© 2016 Phil Johnson
Vicia hassei
© 2023 R.A. Chasey

Vicia sativa ssp. sativa    Garden vetch,  Pubescent common vetch,  Spring vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa ssp. sativa
© 2024 Mike Russler
Vicia sativa ssp. sativa
© 2023 Ron Vanderhoff
Vicia sativa ssp. sativa
© 2023 Ron Vanderhoff

Vinca major    Greater periwinkle,  Bigleaf periwinkle
invasive non-native
Perennial herb

APOCYNACEAE

Vinca major
© 2020 Julia Markey
Vinca major
© 2022 Ron Vanderhoff
Vinca major
© 2021 Ron Vanderhoff

Viola odorata    English violet,  Sweet violet
non-native
Perennial herb

VIOLACEAE

Viola odorata
© 2022 El Byrne
Viola odorata
© 2019 John Rawlings
Viola odorata
© 2025 jordanii

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

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

Xanthium spinosum    Spiny clotbur,  Spiny cockleburr
non-native
Annual herb

ASTERACEAE

Xanthium spinosum
© 2017 B.J. Dion
Xanthium spinosum
© 2021 Lynn Overtree
Xanthium spinosum
© 2017 B.J. Dion

Zostera marina    Eel grass,  Eelgrass,  Seawrack
native
Perennial herb

ZOSTERACEAE

Zostera marina
© 2021 Michelle Karle
Zostera marina
© 2021 Ron Vanderhoff
Zostera marina
© 2013 Ron Vanderhoff