logo Calflora  Illustrated Plant List 
San Simeon Coast
San Luis Obispo County

David Keil  / CNPS-SLO  (2019-06-19)

Record Detail Nearby Surveys What Grows Here?
537 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

Acaena pinnatifida var. californica    California sheepburr
native
Perennial herb

ROSACEAE

Acaena pinnatifida var. californica
© 2020 R.A. Chasey
Acaena pinnatifida var. californica
© 2022 Ken-ichi Ueda
Acaena pinnatifida var. californica
© 2020 R.A. Chasey

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

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

Acer negundo    Boxelder
native
Tree

SAPINDACEAE

Acer negundo
© 2019 Robert Sweet
Acer negundo
© 2016 John H Malpas
Acer negundo
© 2019 Ron Vanderhoff

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

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

Acmispon americanus var. americanus    American bird's foot trefoil,  American trefoil,  Spanish lotus
native
Annual herb

FABACEAE

Acmispon americanus var. americanus
© 2015 Steve Matson
Acmispon americanus var. americanus
© 2015 Steve Matson
Acmispon americanus var. americanus
© 2015 Steve Matson

Acmispon cytisoides    Bentham's deerweed
native
Perennial herb

FABACEAE

Acmispon cytisoides
© 2015 David Wolfson
Acmispon cytisoides
© 2019 Rebecca Schoenenberger
Acmispon cytisoides
© 2012 Terrence Gosliner

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

Acmispon parviflorus    Hill lotus
native
Annual herb

FABACEAE

Acmispon parviflorus
© 2008 Steve Matson
Acmispon parviflorus
© 2005 Steve Matson
Acmispon parviflorus
© 2008 Steve Matson

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 jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

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

Agoseris apargioides var. apargioides    Coast dandelion,  Seaside agoseris,  Seaside dandelion
native
Perennial herb

ASTERACEAE

Agoseris apargioides var. apargioides
© 2011 Thomas Reyes
Agoseris apargioides var. apargioides
© 2011 Thomas Reyes
Agoseris apargioides var. apargioides
© 2011 Thomas Reyes

Agoseris hirsuta    Woolly goat chicory
native
Perennial herb

ASTERACEAE

Agoseris hirsuta
© 2019 Ken Hickman
Agoseris hirsuta
© 2019 Ken Hickman
Agoseris hirsuta
© 2019 Ken Hickman

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 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

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

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

ALLIACEAE

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

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

ALLIACEAE

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

Alnus rhombifolia    White alder
native
Tree

BETULACEAE

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

Alopecurus saccatus    Pacific foxtail
native
Annual grass

POACEAE

Alopecurus saccatus
© 2016 David Greenberger
Alopecurus saccatus
© 2023 Ron Vanderhoff
Alopecurus saccatus
© 2023 Ron Vanderhoff

Amaryllis belladonna    Belladonna lily
non-native
Perennial herb

AMARYLLIDACEAE

Amaryllis belladonna
© 2016 Camille Nowell
Amaryllis belladonna
© 2023 Ron Vanderhoff
Amaryllis belladonna
© 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
© 2016 Steve Matson

Ambrosia psilostachya    Ragweed,  Western ragweed
native
Perennial herb

ASTERACEAE

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

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

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

Amsinckia spectabilis var. spectabilis    Seaside fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia spectabilis var. spectabilis
© 2023 Toni Corelli
Amsinckia spectabilis var. spectabilis
© 2015 Toni Corelli
Amsinckia spectabilis var. spectabilis
© 2020 Ken Hickman

Anaphalis margaritacea    Pearly everlasting
native
Perennial herb

ASTERACEAE

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

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

ASTERACEAE

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

native
Perennial herb (parasitic)

OROBANCHACEAE

Aphyllon californicum ssp. californicum
© 2017 David Greenberger
Aphyllon californicum ssp. californicum
© 2016 Andrea Pickart
Aphyllon californicum ssp. californicum
© 2009 Toni Corelli

Aphyllon fasciculatum    Clustered broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Aphyllon fasciculatum
© 2016 Jim Xerogeanes
Aphyllon fasciculatum
© 2016 Jim Xerogeanes
Aphyllon fasciculatum
© 2023 Mary Ann Machi

Aphyllon purpureum    Purple broomrape
native
Annual herb

OROBANCHACEAE

Aphyllon purpureum
© 2022 Helen Hancock
Aphyllon purpureum
© 2023 Katie O'Hara-Kelly
Aphyllon purpureum
© 2022 Dana York


Annual herb

OROBANCHACEAE

Aphyllon robbinsii
© 2018 Dylan Neubauer
Aphyllon robbinsii
© 2018 Dylan Neubauer
Aphyllon robbinsii
© 2015 Dylan Neubauer

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

APIACEAE

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

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

APOCYNACEAE

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

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

ERICACEAE

Arctostaphylos cruzensis
© 2006 Steve Matson
Arctostaphylos cruzensis
© 2019 R.A. Chasey
Arctostaphylos cruzensis
© 2022 David Krause

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

ERICACEAE

Arctostaphylos hookeri ssp. hearstiorum
© 2006 Steve Matson
Arctostaphylos hookeri ssp. hearstiorum
© 2006 Steve Matson
Arctostaphylos hookeri ssp. hearstiorum
© 2019 Susan McDougall

Arctostaphylos tomentosa ssp. tomentosa    Woolly leaf manzanita,  Woollyleaf manzanita
native
Shrub

ERICACEAE

Arctostaphylos tomentosa ssp. tomentosa
© 2020 David Greenberger
Arctostaphylos tomentosa ssp. tomentosa
© 2020 David Greenberger
Arctostaphylos tomentosa ssp. tomentosa
© 2019 Mary Conway

Armeria maritima ssp. californica    California sea pink,  California seapink,  Sea pink or thrift
native
Perennial herb

PLUMBAGINACEAE

Armeria maritima ssp. californica
© 2016 Steve Matson
Armeria maritima ssp. californica
© 2016 Steve Matson
Armeria maritima ssp. californica
© 2016 Steve Matson

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

Artemisia pycnocephala    Beach sagewort,  Coastal sagewort
native
Perennial herb

ASTERACEAE

Artemisia pycnocephala
© 2015 Toni Corelli
Artemisia pycnocephala
© 2021 Zoya Akulova-Barlow
Artemisia pycnocephala
© 2023 Cynthia Powell

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

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

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

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
© 2018 David popp
Athyrium filix-femina var. cyclosorum
© 2021 John Rawlings

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

CHENOPODIACEAE

Atriplex leucophylla
© 2006 Avis Boutell
Atriplex leucophylla
© 2019 Diane Etchison
Atriplex leucophylla
© 2020 Ken Hickman

Atriplex prostrata    Fat-hen
non-native
Annual herb

CHENOPODIACEAE

Atriplex prostrata
© 2015 Alice Cummings
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

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

POACEAE

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

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

POACEAE

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

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

AZOLLACEAE

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

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

ASTERACEAE

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

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

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

Baccharis plummerae ssp. glabrata    San simeon baccharis
rare native
Shrub

ASTERACEAE

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

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

ASTERACEAE

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

Bellardia trixago    Mediterranean lineseed
invasive non-native
Annual herb

OROBANCHACEAE

Bellardia trixago
© 2016 Michael Mitchell
Bellardia trixago
© 2016 Michael Mitchell
Bellardia trixago
© 2015 jamie smith

Bellardia viscosa    Yellow glandweed
non-native
Annual herb

OROBANCHACEAE

Bellardia viscosa
© 2023 R.A. Chasey
Bellardia viscosa
© 2023 R.A. Chasey
Bellardia viscosa
© 2022 Donald Burk

Berula erecta    Cut leaved water parsnip,  Cutleaf water parsnip,  Cutleaf waterparsnip
native
Perennial herb

APIACEAE

Berula erecta
© 2016 Steve Matson
Berula erecta
© 2016 Steve Matson
Berula erecta
© 2016 Steve Matson

Blitum californicum [Chenopodium californicum]    Small Tree-Mallow


Bloomeria crocea var. aurea    Common goldenstar
native
Perennial herb

THEMIDACEAE

Bloomeria crocea var. aurea
© 2019 David Greenberger
Bloomeria crocea var. aurea
© 2020 Kimberly Coates
Bloomeria crocea var. aurea
© 2018 Gary McDonald

Bloomeria humilis    Dwarf goldenstar
rare native
Perennial herb (bulb)

THEMIDACEAE

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

native
Perennial grasslike herb

CYPERACEAE

Bolboschoenus maritimus ssp. paludosus
© 2022 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
© 2020 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
© 2020 Alice Cummings

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

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

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 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

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

ASTERACEAE

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

Briza maxima    Big quaking grass,  Big quakinggrass,  Rattlesnake grass
invasive non-native
Annual grass

POACEAE

Briza maxima
© 2017 Gary McDonald
Briza maxima
© 2018 Bill Schmidt
Briza maxima
© 2017 Gary McDonald

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

POACEAE

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

Brodiaea terrestris ssp. kernensis    Kern brodiaea,  Kern dwarf brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea terrestris ssp. kernensis
© 2019 Diane Etchison
Brodiaea terrestris ssp. kernensis
© 2019 Diane Etchison
Brodiaea terrestris ssp. kernensis
© 2020 Ron Vanderhoff

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

POACEAE

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

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

POACEAE

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

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

BRASSICACEAE

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

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

Calamagrostis nutkaensis    Pacific reedgrass
native
Perennial grass

POACEAE

Calamagrostis nutkaensis
© 2018 Ken Hickman
Calamagrostis nutkaensis
© 2019 Cynthia Powell
Calamagrostis nutkaensis
© 2019 Ken Hickman

Calandrinia menziesii [Calandrinia ciliata]    Small Tree-Mallow


California macrophylla    Round leaved filaree
native
Annual herb

GERANIACEAE

California macrophylla
© 2016 Steve Matson
California macrophylla
© 2016 Steve Matson
California macrophylla
© 2022 Cynthia Adkisson

Callitriche trochlearis    Effluent water starwort
native
Annual herb (aquatic)

PLANTAGINACEAE

Callitriche trochlearis
© 2011 Gerald Carr
Callitriche trochlearis
© 2011 Gerald Carr
Callitriche trochlearis
© 2011 Gerald Carr

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

LILIACEAE

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

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

LILIACEAE

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

Calochortus luteus    Yellow mariposa lily
native
Perennial herb

LILIACEAE

Calochortus luteus
© 2014 Steve Matson
Calochortus luteus
© 2014 Steve Matson
Calochortus luteus
© 2023 John L. Thompson

Calochortus uniflorus    Pink star tulip
rare native
Perennial herb

LILIACEAE

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

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

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

CONVOLVULACEAE

Calystegia subacaulis ssp. episcopalis
© 2019 David Greenberger
Calystegia subacaulis ssp. episcopalis
© 2021 Kristen Nelson
Calystegia subacaulis ssp. episcopalis
© 2018 Adonis Tate

native
Annual, Perennial herb

ONAGRACEAE

Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2016 Steve Matson
Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2016 Steve Matson
Camissoniopsis cheiranthifolia ssp. cheiranthifolia
© 2006 Steve Matson

Camissoniopsis micrantha    Spencer primrose
native
Annual herb

ONAGRACEAE

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

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

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

BRASSICACEAE

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

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
© 2017 Gary McDonald

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

ASTERACEAE

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

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

CYPERACEAE

Carex obispoensis
© 2006 Steve Matson
Carex obispoensis
© 2010 Chris Winchell
Carex obispoensis
© 2006 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 pansa    Sand dune sedge,  Sanddune sedge
native
Perennial grasslike herb

CYPERACEAE

Carex pansa
© 2003 Steve Matson
Carex pansa
© 2003 Steve Matson
Carex pansa
© 2003 Steve Matson

Carex pellita    Woolly sedge
native
Perennial grasslike herb

CYPERACEAE

Carex pellita
© 2019 Matt Berger
Carex pellita
© 2022 Ellen Uhler
Carex pellita
© 2019 Eric Wrubel

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

CYPERACEAE

Carex praegracilis
© 2020 Ken Hickman
Carex praegracilis
© 2020 John Rawlings
Carex praegracilis
© 2020 Steve Matson

Carex spissa    San diego sedge
native
Perennial grasslike herb

CYPERACEAE

Carex spissa
© 2016 Steve Matson
Carex spissa
© 2016 Steve Matson
Carex spissa
© 2016 Steve Matson

Carex tumulicola    Foothill sedge,  Slender sedge,  Split awn sedge
native
Perennial grasslike herb

CYPERACEAE

Carex tumulicola
© 2017 David Greenberger
Carex tumulicola
© 2021 John Rawlings
Carex tumulicola
© 2021 John Rawlings

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 Cynthia Powell

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 ambigua ssp. insalutata    Ambiguous indian paintbrush,  Johnny nip
native
Annual herb

OROBANCHACEAE

Castilleja ambigua ssp. insalutata
© 2022 Irene Rosen
Castilleja ambigua ssp. insalutata
© 2022 Irene Rosen
Castilleja ambigua ssp. insalutata
© 2022 Irene Rosen

Castilleja densiflora ssp. obispoensis    Obispo indian paintbrush,  San luis obispo owl's clover
native
Annual herb

OROBANCHACEAE

Castilleja densiflora ssp. obispoensis
© 2024 Kyle Suchy
Castilleja densiflora ssp. obispoensis
© 2023 Kyle Suchy
Castilleja densiflora ssp. obispoensis
© 2024 Kyle Suchy

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

OROBANCHACEAE

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

Castilleja foliolosa    Texas paintbrush,  Woolly indian paintbrush
native
Perennial herb

OROBANCHACEAE

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

Ceanothus cuneatus var. cuneatus    Buck brush,  Buckbrush
native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. cuneatus
© 2022 Ryan O'Dell
Ceanothus cuneatus var. cuneatus
© 2021 Steve Matson
Ceanothus cuneatus var. cuneatus
© 2019 Cara Wilcox

Ceanothus hearstiorum    Hearst ranch buckbrush,  Hearst's ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus hearstiorum
© 2009 Jean Pawek
Ceanothus hearstiorum
© 2009 Jean Pawek
Ceanothus hearstiorum
© 2009 Jean Pawek

Ceanothus maritimus    Maritime ceanothus,  San luis obispo ceanothus
rare native
Shrub

RHAMNACEAE

Ceanothus maritimus
© 2019 R.A. Chasey
Ceanothus maritimus
© 2019 Susan McDougall
Ceanothus maritimus
© 2022 Cindy Roessler

native
Tree, Shrub

RHAMNACEAE

Ceanothus thyrsiflorus var. thyrsiflorus
© 2019 Patrick Furtado
Ceanothus thyrsiflorus var. thyrsiflorus
© 2022 Mary Conway
Ceanothus thyrsiflorus var. thyrsiflorus
© 2022 Cynthia Powell

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

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

ASTERACEAE

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

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

ASTERACEAE

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

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

CARYOPHYLLACEAE

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

Chamaesyce maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

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

Chenopodiastrum murale [Chenopodium murale]    Small Tree-Mallow


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

CHENOPODIACEAE

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

Chlorogalum pomeridianum var. divaricatum    Soap plant,  Spreading soaproot,  Wavyleaf soap plant
native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum var. divaricatum
© 2014 Don Loarie
Chlorogalum pomeridianum var. divaricatum
© 2003 Toni Corelli
Chlorogalum pomeridianum var. divaricatum
© 2011 Charadrius

Chorizanthe palmeri    Palmer's spineflower
rare native
Annual herb

POLYGONACEAE

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

Chorizanthe pungens    Monterey spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe pungens
© 2020 Cara Wilcox
Chorizanthe pungens
© 2020 Cara Wilcox
Chorizanthe pungens
© 2018 Evaristo Alvarez

Cicendia quadrangularis    Common microcalis,  Oregon timwort
native
Annual herb

GENTIANACEAE

Cicendia quadrangularis
© 2008 Steve Matson
Cicendia quadrangularis
© 2022 Charles Russell
Cicendia quadrangularis
© 2023 Bill Kress

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

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

Cirsium brevistylum    Clustered thistle,  Indian thistle
native
Perennial herb

ASTERACEAE

Cirsium brevistylum
© 2019 Steve Davison
Cirsium brevistylum
© 2018 Brian Charles
Cirsium brevistylum
© 2019 Aleksandra Evert

Cirsium occidentale var. compactum    Compact cobwebby thistle
rare native
Perennial herb

ASTERACEAE

Cirsium occidentale var. compactum
© 2019 Marisa Persaud
Cirsium occidentale var. compactum
© 2016 Talila Golan
Cirsium occidentale var. compactum
© 2012 John Sayers

Cirsium quercetorum    Alameda county thistle,  Brownie thistle
native
Annual, Perennial herb

ASTERACEAE

Cirsium quercetorum
© 2023 R.A. Chasey
Cirsium quercetorum
© 2022 Hunter Breck
Cirsium quercetorum
© 2013 James Gonsman

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 prostrata    Prostrate clarkia
native
Annual herb

ONAGRACEAE

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

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

ONAGRACEAE

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

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

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

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

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

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

CONVOLVULACEAE

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

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

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

Cornus sericea ssp. occidentalis    Western dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. occidentalis
© 2019 David Greenberger
Cornus sericea ssp. occidentalis
© 2018 Lynn Overtree
Cornus sericea ssp. occidentalis
© 2020 Susan McDougall

Cortaderia jubata    Pampas grass,  Purple pampas grass
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 aquatica    Aquatic pygmy weed,  Pigmy weed,  Water pygmyweed
native
Annual herb

CRASSULACEAE

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

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

CRASSULACEAE

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

Croton setiger    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Croton setiger
© 2011 Steve Matson
Croton setiger
© 2011 Steve Matson
Croton setiger
© 2014 Richard Chasey

Cryptantha clevelandii var. florosa    Coastal cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha clevelandii var. florosa
© 2020 David Greenberger
Cryptantha clevelandii var. florosa
© 2020 Ryan Carle
Cryptantha clevelandii var. florosa
© 2023 Ken-ichi Ueda

Cryptantha leiocarpa    Coast cryptantha,  Coastal cryptantha,  Popcorn flower
native
Annual herb

BORAGINACEAE

Cryptantha leiocarpa
© 2017 Steve Matson
Cryptantha leiocarpa
© 2017 Steve Matson
Cryptantha leiocarpa
© 2017 Steve Matson

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 pacifica var. papillata    Mendocino dodder
rare native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta pacifica var. papillata
© 2003 George W. Hartwell

non-native
Perennial herb

ASTERACEAE

Cynara cardunculus ssp. cardunculus
© 2019 Nathan Taxel
Cynara cardunculus ssp. cardunculus
© 2019 Nathan Taxel
Cynara cardunculus ssp. cardunculus
© 2016 Michele Hammond

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

POACEAE

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

Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

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

Dactylis glomerata    Orchard grass,  Orchardgrass
invasive non-native
Perennial grass

POACEAE

Dactylis glomerata
© 2018 Jennifer Mo
Dactylis glomerata
© 2020 Jim Richards
Dactylis glomerata
© 2017 Gary McDonald

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

Datisca glomerata    Durango root
native
Perennial herb

DATISCACEAE

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

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

SOLANACEAE

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

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

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

Deinandra corymbosa    Coastal tarweed
native
Annual herb

ASTERACEAE

Deinandra corymbosa
© 2016 Michael Mitchell
Deinandra corymbosa
© 2018 Zachariah Jordan
Deinandra corymbosa
© 2015 Tim Miller

Deinandra increscens ssp. increscens    Grassland tarweed
native
Annual herb

ASTERACEAE

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

Deschampsia cespitosa ssp. holciformis    California hairgrass,  Coastal tufted hair grass,  Tufted hairgrass
native
Perennial grass

POACEAE

Deschampsia cespitosa ssp. holciformis
© 2023 Dianne Lake
Deschampsia cespitosa ssp. holciformis
© 2021 John Rawlings
Deschampsia cespitosa ssp. holciformis
© 2022 Dianne Lake

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

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

Desmazeria rigida    Ferngrass,  Hard bluegrass
non-native
Annual grass

POACEAE

Desmazeria rigida
© 2020 Jennifer Mo
Desmazeria rigida
© 2018 Ron Vanderhoff
Desmazeria rigida
© 2017 Neal Kramer

Dichondra donelliana    California ponysfoot,  Dichondra
native
Perennial herb, Vine

CONVOLVULACEAE

Dichondra donelliana
© 2019 Ken Hickman
Dichondra donelliana
© 2019 Ken Hickman
Dichondra donelliana
© 2012 Terrence Gosliner

Diplacus aurantiacus ssp. aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Diplacus aurantiacus ssp. aurantiacus
© 2024 Steve Conger
Diplacus aurantiacus ssp. aurantiacus
© 2024 Steve Conger
Diplacus aurantiacus ssp. aurantiacus
© 2019 Gary McDonald

Diplacus aurantiacus var. puniceus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Diplacus aurantiacus var. puniceus
© 2024 Steve Conger
Diplacus aurantiacus var. puniceus
© 2024 Steve Conger
Diplacus aurantiacus var. puniceus
© 2019 Gary McDonald

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

DIPSACACEAE

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

native
Perennial herb

THEMIDACEAE

Dipterostemon capitatus ssp. capitatus [Dichelostemma capitatum ssp. capitatum]
© 2023 Steve Matson
Dipterostemon capitatus ssp. capitatus [Dichelostemma capitatum ssp. capitatum]
© 2023 Steve Matson
Dipterostemon capitatus ssp. capitatus [Dichelostemma capitatum ssp. capitatum]
© 2022 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
© 2022 Donald Burk

Downingia concolor var. concolor    Maroonspot calicoflower,  Spotted throat downingia
native
Annual herb

CAMPANULACEAE

Downingia concolor var. concolor
© 2019 David Greenberger
Downingia concolor var. concolor
© 2015 Julia King
Downingia concolor var. concolor
© 2023 R.A. Chasey

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

DRYOPTERIDACEAE

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

Dudleya blochmaniae ssp. blochmaniae    Blochman's dudleya,  Blochman's liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya blochmaniae ssp. blochmaniae
© 2022 Aaron Echols
Dudleya blochmaniae ssp. blochmaniae
© 2018 Kristen Nelson
Dudleya blochmaniae ssp. blochmaniae
© 2023 Mike Russler

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

Dudleya palmeri    Palmer's dudleya,  Palmer's liveforever
native
Perennial herb

CRASSULACEAE

Dudleya palmeri
© 2016 Brett Dean
Dudleya palmeri
© 2012 Terrence Gosliner
Dudleya palmeri
© 2012 Al Keuter

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania ambrosioides
© 2020 Ron Vanderhoff
Dysphania ambrosioides
© 2018 Ron Vanderhoff
Dysphania ambrosioides
© 2020 Ron Vanderhoff

Eleocharis acicularis var. acicularis    Needle spike rush,  Needle spikerush
native
Perennial grasslike herb

CYPERACEAE

Eleocharis acicularis var. acicularis
© 2017 Toni Corelli
Eleocharis acicularis var. acicularis
© 2023 R.A. Chasey
Eleocharis acicularis var. acicularis
© 2023 Robin Carter-Ervin

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

CYPERACEAE

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

Eleocharis rostellata    Beaked spikerush,  Walking sedge
native
Perennial grasslike herb

CYPERACEAE

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

Elymus condensatus    Giant wild rye
native
Perennial grass

POACEAE

Elymus condensatus
© 2020 Ron Vanderhoff
Elymus condensatus
© 2022 John Rawlings
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
© 2014 Toni Corelli
Elymus glaucus ssp. glaucus
© 2021 Arlee Montalvo
Elymus glaucus ssp. glaucus
© 2022 Ron Vanderhoff

Elymus ponticus    Tall wheat grass
non-native
Perennial grass

POACEAE

Elymus ponticus
© 2021 Lenihan Mazur
Elymus ponticus
© 2020 ALice Cummings
Elymus ponticus
© 2020 Ron Vanderhoff

Elymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Elymus triticoides
© 2018 Ron Vanderhoff
Elymus triticoides
© 2021 Ron Vanderhoff
Elymus triticoides
© 2018 Rachelle Gray

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

ONAGRACEAE

Epilobium canum ssp. canum
© 2018 Ron Vanderhoff
Epilobium canum ssp. canum
© 2018 Ron Vanderhoff
Epilobium canum ssp. canum
© 2018 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

Epilobium ciliatum ssp. watsonii    Fringed willowherb,  Watson's willowherb,  Willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum ssp. watsonii
© 2017 David Greenberger
Epilobium ciliatum ssp. watsonii
© 2012 BOB CASE
Epilobium ciliatum ssp. watsonii
© 2021 Jamie Spielmann

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

ONAGRACEAE

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

Equisetum arvense    Common horsetail rush,  Common horsetail, field horsetail,  Field horsetail
native
Fern

EQUISETACEAE

Equisetum arvense
© 2022 Suzanne L. Weakley
Equisetum arvense
© 2021 Cynthia Powell
Equisetum arvense
© 2016 Cynthia Powell

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

EQUISETACEAE

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

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

EQUISETACEAE

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

Erigeron bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

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

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

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

Erigeron glaucus    Seaside daisy,  Seaside fleabane
native
Perennial herb

ASTERACEAE

Erigeron glaucus
© 2023 Toni Corelli
Erigeron glaucus
© 2019 James Gonsman
Erigeron glaucus
© 2018 Asa B Spade

Erigeron philadelphicus    Philadelphia fleabane
native
Perennial herb

ASTERACEAE

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

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

ASTERACEAE

Erigeron sanctarum
© 2016 David Wolfson
Erigeron sanctarum
© 2000 John Game
Erigeron sanctarum
© 2000 John Game

Eriodictyon californicum    California yerba santa,  Yerba santa
native
Shrub

NAMACEAE

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

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

POLYGONACEAE

Eriogonum fasciculatum var. fasciculatum
© 2019 Ron Vanderhoff
Eriogonum fasciculatum var. fasciculatum
© 2019 Ron Vanderhoff
Eriogonum fasciculatum var. fasciculatum
© 2019 Ron Vanderhoff

Eriogonum latifolium    Coast buckwheat,  Coast eriogonum,  Seaside buckwheat
native
Perennial herb

POLYGONACEAE

Eriogonum latifolium
© 2016 Suzanne L. Weakley
Eriogonum latifolium
© 2021 Dylan Neubauer
Eriogonum latifolium
© 2019 Patrick Furtado

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
© 2024 Richard Spjut
Eriophyllum confertiflorum var. confertiflorum
© 2013 James Gonsman
Eriophyllum confertiflorum var. confertiflorum
© 2020 Ron Vanderhoff

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

ASTERACEAE

Eriophyllum staechadifolium
© 2024 Steve Conger
Eriophyllum staechadifolium
© 2014 James Gonsman
Eriophyllum staechadifolium
© 2019 Mary Conway

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

Eryngium armatum    Coastal eryngo,  Coyote thistle,  Prickly coyote thistle
native
Perennial herb

APIACEAE

Eryngium armatum
© 2006 Steve Matson
Eryngium armatum
© 2006 Steve Matson
Eryngium armatum
© 2015 Tim Miller

Eryngium pendletonense    Pendleton button-celery
rare native
Perennial herb

APIACEAE

Eryngium pendletonense
© 2014 Ron Vanderhoff
Eryngium pendletonense
© 2014 Ron Vanderhoff
Eryngium pendletonense
© 2020 Ron Vanderhoff

Erythranthe cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

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

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 californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

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

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

MYRTACEAE

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

Euphorbia lathyris    Compass plant,  Gopher plant,  Moleplant
invasive non-native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia lathyris
© 2017 Aaron Echols
Euphorbia lathyris
© 2021 Mike Russler
Euphorbia lathyris
© 2017 Ron Vanderhoff

Euphorbia maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

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

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
© 2006 Steve Matson
Euphorbia peplus
© 2022 Alice Cummings
Euphorbia peplus
© 2005 Luigi Rignanese

Euphorbia spathulata    Reticulate seeded spurge,  Warty spurge
native
Annual herb

EUPHORBIACEAE

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

Extriplex californica    California orach
native
Perennial herb

CHENOPODIACEAE

Extriplex californica
© 2020 Ron Vanderhoff
Extriplex californica
© 2006 Steve Matson
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
© 2012 Aaron Arthur

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

POACEAE

Festuca perennis
© 2019 Ron Vanderhoff
Festuca perennis
© 2017 Gary McDonald
Festuca perennis
© 2021 Ron Vanderhoff

Festuca rubra    Red fescue
native
Perennial grass

POACEAE

Festuca rubra
© 2012 Ove Anderson
Festuca rubra
© 2022 John Rawlings
Festuca rubra
© 2018 Alexandra Kookootsedes

Festuca temulenta    Darnel, tares
non-native
Annual grass

POACEAE

Festuca temulenta
© 2016 Spade Natural Resources Consulting
Festuca temulenta
© 2020 David popp
Festuca temulenta
© 2019 Stephany Dery

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

APIACEAE

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

Fragaria chiloensis    Beach strawberry
native
Perennial herb

ROSACEAE

Fragaria chiloensis
© 2016 Teresa R Spade, AICP
Fragaria chiloensis
© 2019 Patrick Furtado
Fragaria chiloensis
© 2020 Carlos Davidson

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

ROSACEAE

Fragaria vesca
© 2020 Cara Wilcox
Fragaria vesca
© 2017 James Gonsman
Fragaria vesca
© 2022 Dee Shea Himes

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 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 aparine    Cleavers,  Common bedstraw,  Goose grass
native
Annual herb

RUBIACEAE

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

Galium californicum ssp. flaccidum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum ssp. flaccidum
© 2014 Steve Matson
Galium californicum ssp. flaccidum
© 2014 Steve Matson
Galium californicum ssp. flaccidum
© 2014 Steve Matson

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

Galium trifidum ssp. columbianum    Threepetal bedstraw
native
Perennial herb

RUBIACEAE

Galium trifidum ssp. columbianum
© 2005 Steve Matson
Galium trifidum ssp. columbianum
© 2005 Steve Matson
Galium trifidum ssp. columbianum
© 2005 Steve Matson

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

Gamochaeta ustulata
© 2019 Gary McDonald
Gamochaeta ustulata
© 2021 Zoya Akulova-Barlow
Gamochaeta ustulata
© 2019 Gary McDonald

Gastridium phleoides    Nit grass
non-native
Annual grass

POACEAE

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

Genista monspessulana    French broom
invasive non-native
Shrub

FABACEAE

Genista monspessulana
© 2019 Ron Vanderhoff
Genista monspessulana
© 2019 Ron Vanderhoff
Genista monspessulana
© 2021 Michelle Karle

Geranium core-core    Alderney crane's-bill
non-native
Perennial herb

GERANIACEAE

Geranium core-core
© 2012 BOB CASE
Geranium core-core
© 2013 Toni Corelli
Geranium core-core
© 2022 Jennifer Mo

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

GERANIACEAE

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

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

Hainardia cylindrica    Barbgrass,  Monerma,  Thin tail
non-native
Annual grass

POACEAE

Hainardia cylindrica
© 2022 Denise Defreese
Hainardia cylindrica
© 2009 Neal Kramer
Hainardia cylindrica
© 2024 R.A. Chasey

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

ASTERACEAE

Hazardia squarrosa var. squarrosa
© 2021 Mike Russler
Hazardia squarrosa var. squarrosa
© 2021 Mary Conway
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 bigelovii    Bigelow's sneezeweed,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium bigelovii
© 2022 R.A. Chasey
Helenium bigelovii
© 2019 Bryant Baker
Helenium bigelovii
© 2020 Rebecca Schoenenberger

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

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

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

HELIOTROPIACEAE

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

Helminthotheca echioides    Bristly ox-tongue
invasive non-native
Annual, Perennial herb

ASTERACEAE

Helminthotheca echioides
© 2016 Hayley Ross
Helminthotheca echioides
© 2019 Rachelle Gray
Helminthotheca echioides
© 2012 Elizabeth Brusati

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

ASTERACEAE

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

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

ASTERACEAE

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

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

Hesperoyucca whipplei    Chaparral yucca
native
Shrub

AGAVACEAE

Hesperoyucca whipplei
© Geoff Burleigh
Hesperoyucca whipplei
© 2023 Jordan Collins
Hesperoyucca whipplei
© 2020 Julia Markey

Heteromeles arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

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

Heterotheca oregona var. oregona    Oregon false goldenaster,  Oregon goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca oregona var. oregona
© 2022 Dana York
Heterotheca oregona var. oregona
© 2020 Susan McDougall
Heterotheca oregona var. oregona
© 2020 Susan McDougall

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

BRASSICACEAE

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

Hoita macrostachya    California hemp,  Large leather root
native
Perennial herb

FABACEAE

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

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

POACEAE

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

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

POACEAE

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

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

POACEAE

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

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

POACEAE

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

Hordeum vulgare    Common barley
non-native
Annual grass

POACEAE

Hordeum vulgare
© 2019 Ron Vanderhoff
Hordeum vulgare
© 2019 Ron Vanderhoff
Hordeum vulgare
© 2022 Ron Vanderhoff

Horkelia californica var. californica    California horkelia
native
Perennial herb

ROSACEAE

Horkelia californica var. californica
© 2020 Mary Conway
Horkelia californica var. californica
© 2021 Mary Conway
Horkelia californica var. californica
© 2015 Toni Corelli

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
© 2021 Mary Conway

Hosackia gracilis    Harlequin lotus
rare native
Perennial herb

FABACEAE

Hosackia gracilis
© 2019 David Greenberger
Hosackia gracilis
© 2023 Steve Conger
Hosackia gracilis
© 2023 Mary Ann Machi

Hydrocotyle ranunculoides    Floating marsh pennywort,  Floating marshpennywort,  Marsh pennywort
native
Perennial herb

ARALIACEAE

Hydrocotyle ranunculoides
© 2019 R.A. Chasey
Hydrocotyle ranunculoides
© 2023 R.A. Chasey
Hydrocotyle ranunculoides
© 2017 Michael Mitchell

Hydrocotyle verticillata    Whorled marsh pennywort,  Whorled marshpennywort
native
Perennial herb

ARALIACEAE

Hydrocotyle verticillata
© 2013 Ron Vanderhoff
Hydrocotyle verticillata
© 2020 Robert Byrnes
Hydrocotyle verticillata
© 2019 David Greenberger

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

Hypochaeris radicata    Hairy cats ear,  Hairy catsear,  Rough cat's ear
invasive non-native
Perennial herb

ASTERACEAE

Hypochaeris radicata
© 2024 Ron Vanderhoff
Hypochaeris radicata
© 2017 Gary McDonald
Hypochaeris radicata
© 2016 Michael Mitchell

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. sedoides    Menzies' goldenbush,  Prostrate coastal goldenbush
native
Shrub

ASTERACEAE

Isocoma menziesii var. sedoides
© 2014 Steve Matson
Isocoma menziesii var. sedoides
© 2021 Ron Vanderhoff
Isocoma menziesii var. sedoides
© 2021 Ron Vanderhoff

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

Isoetes nuttallii    Nuttall's quillwort
native

ISOETACEAE

Isoetes nuttallii
© 2019 David Greenberger
Isoetes nuttallii
© 2019 Matt Berger
Isoetes nuttallii
© 2019 Matt Berger

Isolepis carinata    Keeled bulrush
native
Annual grasslike herb

CYPERACEAE

Isolepis carinata
© 2024 R.A. Chasey
Isolepis carinata
© 2021 John Rawlings
Isolepis carinata
© 2023 R.A. Chasey

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

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 bufonius var. congestus    Clustered toad rush
native
Annual grasslike herb

JUNCACEAE

Juncus bufonius var. congestus
© 2004 Steve Matson
Juncus bufonius var. congestus
© 2023 Adonis Tate
Juncus bufonius var. congestus
© 2023 Mary Merriman

Juncus effusus ssp. pacificus    Pacific rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus ssp. pacificus
© 2009 Toni Corelli
Juncus effusus ssp. pacificus
© 2021 R.A. Chasey
Juncus effusus ssp. pacificus
© 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 textilis    Basket rush
native
Perennial grasslike herb

JUNCACEAE

Juncus textilis
© 2020 Ron Vanderhoff
Juncus textilis
© 2020 Ron Vanderhoff
Juncus textilis
© 2020 Ron Vanderhoff

Kickxia spuria    Fluellin,  Roundleaf cancerwort
non-native
Perennial herb

PLANTAGINACEAE

Kickxia spuria
© 2020 David Wolfson
Kickxia spuria
© 2020 Vivian Neou
Kickxia spuria
© 2023 R.A. Chasey

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

ASTERACEAE

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

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

ASTERACEAE

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

Lasthenia californica ssp. macrantha    Perennial goldfields
rare native
Perennial herb

ASTERACEAE

Lasthenia californica ssp. macrantha
© 2022 R.A. Chasey
Lasthenia californica ssp. macrantha
© 2023 Mary Ann Machi
Lasthenia californica ssp. macrantha
© 2017 David Greenberger

Lasthenia conjugens    Contra costa goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia conjugens
© 2022 Irene Rosen
Lasthenia conjugens
© 2022 Irene Rosen
Lasthenia conjugens
© 2022 Scott Yarger

Lasthenia glaberrima    Smooth goldfields
native
Annual herb

ASTERACEAE

Lasthenia glaberrima
© 2017 Michael Mitchell
Lasthenia glaberrima
© 2020 Matt Berger
Lasthenia glaberrima
© 2020 R.A. Chasey

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

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

Lasthenia minor    Coastal goldfields,  Smooth lasthenia,  Woolly goldfields
native
Annual herb

ASTERACEAE

Lasthenia minor
© 2007 Toni Corelli
Lasthenia minor
© 2019 James Gonsman
Lasthenia minor
© 2015 Toni Corelli

Lathyrus odoratus    Common sweet pea,  Garden sweet pea,  Sweetpea
non-native
Annual herb

FABACEAE

Lathyrus odoratus
© 2017 danielle noe
Lathyrus odoratus
© 2022 Ron Vanderhoff
Lathyrus odoratus
© 2022 Ron Vanderhoff

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

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

Lemna gibba    Duckweed,  Gibbous duckweed,  Swollen duckweed
native
Perennial herb

ARACEAE

Lemna gibba
© 2020 Ron Vanderhoff
Lemna gibba
© 2021 Ron Vanderhoff
Lemna gibba
© 2019 Ron Vanderhoff

Lemna minor    Smaller duckweed
native
Perennial herb

ARACEAE

Lemna minor
© 2019 Ron Vanderhoff
Lemna minor
© 2019 Ron Vanderhoff
Lemna minor
© 2022 R.A. Chasey

Lemna minuta    Least duckweed
native
Perennial herb

ARACEAE

Lemna minuta
© 2022 Ron Vanderhoff
Lemna minuta
© 2020 Ron Vanderhoff
Lemna minuta
© 2019 Ron Vanderhoff

Lepechinia calycina    White pitcher sage,  Woodbalm, pitcher sage
native
Shrub

LAMIACEAE

Lepechinia calycina
© 2020 Janice Kuch
Lepechinia calycina
© 2024 Ben Spencer-Cooke
Lepechinia calycina
© 2023 Mike Russler

Lepidium draba    Whitetop
invasive non-native
Perennial herb

BRASSICACEAE

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

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

BRASSICACEAE

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

Limonium sinuatum    Statice,  Wavyleaf sealavender
non-native
Perennial herb

PLUMBAGINACEAE

Limonium sinuatum
© 2019 Ron Vanderhoff
Limonium sinuatum
© 2017 David Wolfson
Limonium sinuatum
© 2019 Ron Vanderhoff

Linum bienne    Narrow leaved flax,  Pale flax,  Small flowered flax
non-native
Annual herb

LINACEAE

Linum bienne
© 2019 Ken Lunders
Linum bienne
© 2021 Cameron Chabre
Linum bienne
© 2018 Cynthia Powell

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

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

Lomatium caruifolium var. caruifolium    Alkali desertparsley,  Caraway leaved lomatium
native
Perennial herb

APIACEAE

Lomatium caruifolium var. caruifolium
© 2014 Steve Matson
Lomatium caruifolium var. caruifolium
© 2014 Steve Matson
Lomatium caruifolium var. caruifolium
© 2014 Steve Matson

Lomatium parvifolium    Coastal biscuitroot,  Small leaved lomatium
rare native
Perennial herb

APIACEAE

Lomatium parvifolium
© 2020 David Greenberger
Lomatium parvifolium
© 2023 Mike Russler
Lomatium parvifolium
© 2021 Patrick Furtado

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

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

FABACEAE

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

Lupinus albifrons var. abramsii    Abrams' lupine
rare native
Perennial herb

FABACEAE

Lupinus albifrons var. abramsii
© 2018 Michael Mitchell
Lupinus albifrons var. abramsii
© 2018 Michael Mitchell
Lupinus albifrons var. abramsii
© 2018 Michael Mitchell

Lupinus arboreus    Coastal bush lupine,  Yellow bush lupine
native
Shrub

FABACEAE

Lupinus arboreus
© 2019 Patrick Furtado
Lupinus arboreus
© 2014 Steve Matson
Lupinus arboreus
© 2020 Steve Matson

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

FABACEAE

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

Lupinus 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

Luzula subsessilis    Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

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

Lysimachia arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

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

Lysimachia minima    Chaffweed
native
Annual herb

MYRSINACEAE

Lysimachia minima
© 2020 Ron Vanderhoff
Lysimachia minima
© 2018 Hayley Ross
Lysimachia minima
© 2020 Ron Vanderhoff

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

LYTHRACEAE

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

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

ASTERACEAE

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

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

ASTERACEAE

Madia sativa
© 2013 Ron Vanderhoff
Madia sativa
© 2021 David Wolfson
Madia sativa
© 2021 Zoya Akulova-Barlow

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

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

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

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

non-native
Annual, Biennial herb

MALVACEAE

Malva pseudolavatera
© 2021 Ron Vanderhoff
Malva pseudolavatera
© 2021 Ron Vanderhoff
Malva pseudolavatera
© 2021 Ron Vanderhoff

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

Medicago praecox    Mediterranean medick
non-native
Annual herb

FABACEAE

Medicago praecox
© 2012 Jean Pawek
Medicago praecox
© 2022 David popp
Medicago praecox
© 2012 Jean Pawek

Medicago sativa    Alfalfa
non-native
Perennial herb

FABACEAE

Medicago sativa
© 2017 Hayley Ross
Medicago sativa
© 2020 Bob Sweatt
Medicago sativa
© 2017 Hayley Ross

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 albus    White sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus albus
© 2021 Ron Vanderhoff
Melilotus albus
© 2020 Bob Sweatt
Melilotus albus
© 2022 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

Microseris bigelovii    Coast microseris,  Coastal silverpuffs
native
Annual herb

ASTERACEAE

Microseris bigelovii
© 2023 Leslie Flint
Microseris bigelovii
© 2022 R.A. Chasey
Microseris bigelovii
© 2011 Toni Corelli

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

ASTERACEAE

Microseris douglasii ssp. douglasii
© 2017 Steve Matson
Microseris douglasii ssp. douglasii
© 2017 Steve Matson
Microseris douglasii ssp. douglasii
© 2017 Steve Matson

Microseris paludosa    Marsh scorzonella,  Marsh silverpuffs
rare native
Perennial herb

ASTERACEAE

Microseris paludosa
© 2023 R.A. Chasey
Microseris paludosa
© 2022 Irene Rosen
Microseris paludosa
© 2023 Mary Conway

Morella californica    California wax myrtle
native
Tree, Shrub

MYRICACEAE

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

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

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

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

OXALIDACEAE

Oxalis corniculata
© 2022 Donald Burk
Oxalis corniculata
© 2022 Ron Vanderhoff
Oxalis corniculata
© 2021 Ron Vanderhoff

Oxalis debilis    Small Tree-Mallow


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

OXALIDACEAE

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

Oxalis pilosa    Hairy wood sorrel
native
Annual herb

OXALIDACEAE

Oxalis pilosa
© 2022 R.A. Chasey
Oxalis pilosa
© 2009 Avis Boutell
Oxalis pilosa
© 2022 Cynthia Powell

Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

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

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

POACEAE

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

Parietaria hespera var. californica    California pellitory
native
Annual herb

URTICACEAE

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

Paspalum dilatatum    Dallis grass,  Dallisgrass
non-native
Perennial grass

POACEAE

Paspalum dilatatum
© 2018 Ron Vanderhoff
Paspalum dilatatum
© 2017 Barbara Boethling
Paspalum dilatatum
© 2021 Ron Vanderhoff

Pelargonium grossularioides    Gooseberry geranium,  Gooseberry pelargonium
non-native
Annual, Perennial herb

GERANIACEAE

Pelargonium grossularioides
© 2023 Ron Vanderhoff
Pelargonium grossularioides
© 2018 Ron Vanderhoff
Pelargonium grossularioides
© 2023 Ron Vanderhoff

Pelargonium inquinans    Scarlet geranium,  South african pelargonium
non-native
Shrub (stem succulent)

GERANIACEAE


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

Perideridia gairdneri ssp. gairdneri    Gairdner's yampah
rare native
Perennial herb

APIACEAE

Perideridia gairdneri ssp. gairdneri
© 2021 Mary Conway
Perideridia gairdneri ssp. gairdneri
© 2021 Larry Dizmang
Perideridia gairdneri ssp. gairdneri
© 2021 Scott Yarger

Persicaria amphibia    Water smartweed
native
Perennial herb (aquatic)

POLYGONACEAE

Persicaria amphibia
© 2017 Ron Vanderhoff
Persicaria amphibia
© 2017 Ron Vanderhoff
Persicaria amphibia
© 2019 Diane Etchison

Persicaria lapathifolia    Common knotweed
native
Annual herb

POLYGONACEAE

Persicaria lapathifolia
© 2020 Ron Vanderhoff
Persicaria lapathifolia
© 2017 Ron Vanderhoff
Persicaria lapathifolia
© 2020 Ron Vanderhoff

Persicaria punctata    Dotted smartweed
native
Perennial herb

POLYGONACEAE

Persicaria punctata
© 2018 Ron Vanderhoff
Persicaria punctata
© 2018 Ron Vanderhoff
Persicaria punctata
© 2022 Helen Hancock

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

HYDROPHYLLACEAE

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

Phalaris aquatica    Bulbous canarygrass,  Harding grass
invasive non-native
Perennial grass

POACEAE

Phalaris aquatica
© 2018 Thomas Reyes
Phalaris aquatica
© 2021 Lenihan Mazur
Phalaris aquatica
© 2022 Lenihan Mazur

Phalaris californica    California canarygrass,  Canarygrass
native
Perennial grass

POACEAE

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

Phalaris canariensis    Annual canarygrass
non-native
Annual grass

POACEAE

Phalaris canariensis
© 2008 Louis-M. Landry
Phalaris canariensis
© 2007 Luigi Rignanese
Phalaris canariensis
© 2007 Luigi Rignanese

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

VERBENACEAE

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

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 Ron Vanderhoff

Pilularia americana    American pillwort
native
Fern

MARSILEACEAE

Pilularia americana
© 2017 Ron Vanderhoff
Pilularia americana
© 2017 Ron Vanderhoff
Pilularia americana
© 2022 Matt Berger

Pinus radiata    Monterey pine
native
Tree

PINACEAE

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

Pittosporum undulatum    Australian cheesewood,  Victorian box
invasive non-native
Tree, Shrub

PITTOSPORACEAE

Pittosporum undulatum
© 2018 Ron Vanderhoff
Pittosporum undulatum
© 2017 UCSC Weed Management Group
Pittosporum undulatum
© 2018 Ron Vanderhoff

Plagiobothrys bracteatus    Bracted allocarya,  Bracted popcorn flower,  Bracted popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys bracteatus
© 2023 R.A. Chasey
Plagiobothrys bracteatus
© 2023 R.A. Chasey
Plagiobothrys bracteatus
© 2023 R.A. Chasey

Plagiobothrys chorisianus var. hickmanii    Hickman's popcorn flower,  Hickman's popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys chorisianus var. hickmanii
© 2022 Steven Mills Glascock
Plagiobothrys chorisianus var. hickmanii
© 2023 Ellen Uhler
Plagiobothrys chorisianus var. hickmanii
© 2022 Irene Rosen

Plagiobothrys undulatus    Coast allocarya
native
Annual herb

BORAGINACEAE

Plagiobothrys undulatus
© 2012 Terrence Gosliner
Plagiobothrys undulatus
© 2024 Ron Vanderhoff
Plagiobothrys undulatus
© 2006 Steve Matson

Plantago coronopus    Buckhorn plantain,  Cut leaf plantain
invasive non-native
Annual herb

PLANTAGINACEAE

Plantago coronopus
© 2022 R.A. Chasey
Plantago coronopus
© 2021 Zoya Akulova-Barlow
Plantago coronopus
© 2017 MCOSD Restoration Crew

Plantago elongata    Annual coast plantago,  Coastal plantain,  Long leaf plantain
native
Annual herb

PLANTAGINACEAE

Plantago elongata
© 2017 Barbara Boethling
Plantago elongata
© 2019 Ron Vanderhoff
Plantago elongata
© 2020 Ron Vanderhoff

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
© 2017 Gary McDonald
Plantago lanceolata
© 2019 Joe Engelbrecht
Plantago lanceolata
© 2021 Ken Lunders

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

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

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

Platanus racemosa    California sycamore,  Western sycamore
native
Tree

PLATANACEAE

Platanus racemosa
© 2021 Ron Vanderhoff
Platanus racemosa
© 2018 Ron Vanderhoff
Platanus racemosa
© 2019 Rachelle Gray

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
© 2019 Diane Etchison
Platystemon californicus
© 2022 John L. Thompson
Platystemon californicus
© 2022 John L. Thompson

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 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

Pogogyne douglasii    Douglas' mesamint,  Douglas' pogogyne
native
Annual herb

LAMIACEAE

Pogogyne douglasii
© 2022 Steve Matson
Pogogyne douglasii
© 2016 Ray Gill
Pogogyne douglasii
© 2022 Ramona Robison

Pogogyne serpylloides    Thyme leaf mesa mint,  Thymeleaf mesamint
native
Annual herb

LAMIACEAE

Pogogyne serpylloides
© 2020 Stacie Wolny
Pogogyne serpylloides
© 2022 R.A. Chasey
Pogogyne serpylloides
© 2020 Stacie Wolny

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

CARYOPHYLLACEAE

Polycarpon depressum
© 2023 James Bailey
Polycarpon depressum
© 2023 James Bailey
Polycarpon depressum
© 2011 Neal Kramer

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

CARYOPHYLLACEAE

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

Polygonum aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

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

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

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

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 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 fremontii ssp. fremontii    Fremont cottonwood
native
Tree

SALICACEAE

Populus fremontii ssp. fremontii
© 2019 Stella Yang
Populus fremontii ssp. fremontii
© 2020 David popp
Populus fremontii ssp. fremontii
© 2020 Susan McDougall

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

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

Potamogeton foliosus    Leafy pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton foliosus
© 2020 Ron Vanderhoff
Potamogeton foliosus
© 2020 Ron Vanderhoff
Potamogeton foliosus
© 2016 Robert L. Carr

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

non-native
Perennial herb

ROSACEAE

Poterium sanguisorba var. polygamum
© 2019 Jennifer Mo
Poterium sanguisorba var. polygamum
© 2021 David Wolfson
Poterium sanguisorba var. polygamum
© 2017 Keir Morse

Primula clevelandi [Dodecatheon clevelandii]    Small Tree-Mallow


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
© 2021 Ron Vanderhoff

Pseudognaphalium microcephalum    Wright's cudweed
native
Perennial herb

ASTERACEAE

Pseudognaphalium microcephalum
© 2020 Ron Vanderhoff
Pseudognaphalium microcephalum
© 2022 David Strauch
Pseudognaphalium microcephalum
© 2019 Ron Vanderhoff

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

Ranunculus aquatilis var. diffusus    white water butter cup
native
Perennial herb (aquatic)

RANUNCULACEAE

Ranunculus aquatilis var. diffusus
© 2016 Ken Lunders
Ranunculus aquatilis var. diffusus
© 2007 Steve Matson
Ranunculus aquatilis var. diffusus
© 2022 Jonathan Widdicombe

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

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

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
© 2021 Ken-ichi Ueda
Ribes divaricatum var. pubiflorum
© 2021 Ken-ichi Ueda
Ribes divaricatum var. pubiflorum
© 2021 Ken-ichi Ueda

Ribes menziesii var. menziesii    Canyon gooseberry
native
Shrub

GROSSULARIACEAE

Ribes menziesii var. menziesii
© 2018 Rebecca Schoenenberger
Ribes menziesii var. menziesii
© 2019 Michael Mitchell
Ribes menziesii var. menziesii
© 2020 Susan McDougall

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

GROSSULARIACEAE

Ribes sanguineum var. glutinosum
© 2020 Talila Golan
Ribes sanguineum var. glutinosum
© 2018 John Rusk
Ribes sanguineum var. glutinosum
© 2018 Hunter Breck

Ribes speciosum    Fuchsia flowered gooseberry,  Fuchsiaflower gooseberry
native
Shrub

GROSSULARIACEAE

Ribes speciosum
© 2022 David Chipping
Ribes speciosum
© 2021 Ron Vanderhoff
Ribes speciosum
© 2021 Ron Vanderhoff

Romulea rosea var. australis    Rosy sand crocus,  Rosy sandcrocus
non-native
Perennial herb

IRIDACEAE

Romulea rosea var. australis
© 2019 Janice Kuch
Romulea rosea var. australis
© 2022 Leah Lord
Romulea rosea var. australis
© 2018 Robin Hunter

Rosa californica    California wild rose,  California wildrose
native
Shrub

ROSACEAE

Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2021 Sue Graue

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 kerneri    Kerner's dock
non-native
Perennial herb

POLYGONACEAE

Rumex kerneri
© 2024 Donald Burk
Rumex kerneri
© 2023 Donald Burk
Rumex kerneri
© 2024 Donald Burk

Rumex occidentalis    Western dock
native
Perennial herb

POLYGONACEAE

Rumex occidentalis
© 2008 Toni Corelli
Rumex occidentalis
© 2009 Toni Corelli
Rumex occidentalis
© 2020 Ken Hickman

Rumex pulcher    Fiddle dock
non-native
Perennial herb

POLYGONACEAE

Rumex pulcher
© 2020 Ryan Carle
Rumex pulcher
© 2022 Chris McDonald
Rumex pulcher
© 2021 David popp

Rumex salicifolius var. crassus    Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius var. crassus
© 2019 Patrick Furtado
Rumex salicifolius var. crassus
© 2008 Toni Corelli
Rumex salicifolius var. crassus
© 2021 Cynthia Powell

Rumex salicifolius var. salicifolius    Willow dock,  Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius var. salicifolius
© 2023 Ron Vanderhoff
Rumex salicifolius var. salicifolius
© 2012 Gary McDonald
Rumex salicifolius var. salicifolius
© 2012 Gary McDonald

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

RUPPIACEAE

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

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
© 2020 Ron Vanderhoff
Salicornia pacifica
© 2020 Ron Vanderhoff
Salicornia pacifica
© 2018 Ron Vanderhoff

Salix exigua var. hindsiana    Sandbar willow
native
Tree, Shrub

SALICACEAE

Salix exigua var. hindsiana
© 2022 Robbie Lee
Salix exigua var. hindsiana
© 2017 Dee Shea Himes
Salix exigua var. hindsiana
© 02/22/2022 John Rawlings

Salix 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
© 2021 Ken Hickman

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

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

Salix sitchensis    Coulter willow,  Sitka willow
native
Tree, Shrub

SALICACEAE

Salix sitchensis
© 2019 Ken Hickman
Salix sitchensis
© 2019 Ken Hickman
Salix sitchensis
© 2019 Marisa Persaud

Salvia mellifera    Black sage
native
Shrub

LAMIACEAE

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

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 arctopoides    Footsteps of spring,  Yellow mats
native
Perennial herb

APIACEAE

Sanicula arctopoides
© 2019 Eliezer Margolis
Sanicula arctopoides
© 2017 James Gonsman
Sanicula arctopoides
© 2017 James Gonsman

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 hoffmannii    Hoffmann's blacksnakeroot,  Hoffmann's sanicle,  Hoffmann's snakeroot
rare native
Perennial herb

APIACEAE

Sanicula hoffmannii
© 2019 Ken Hickman
Sanicula hoffmannii
© 2015 David Wolfson
Sanicula hoffmannii
© 2018 Ken Hickman

Sanicula laciniata    Coast sanicle,  Coastal blacksnakeroot
native
Perennial herb

APIACEAE

Sanicula laciniata
© 2022 Diane Renshaw
Sanicula laciniata
© 2022 R.A. Chasey
Sanicula laciniata
© 2018 Ken Hickman

Sanicula maritima    Adobe sanicle,  Adobe snakeroot
rare native
Perennial herb

APIACEAE

Sanicula maritima
© 2019 David Wolfson
Sanicula maritima
© 2021 Kristen Nelson
Sanicula maritima
© 2021 Kristen Nelson

native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus acutus var. occidentalis
© 2019 Steve Matson
Schoenoplectus acutus var. occidentalis
© 2019 Steve Matson
Schoenoplectus acutus var. occidentalis
© 2019 Steve Matson

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

Schoenoplectus californicus    California bulrush
native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus californicus
© 2022 John Rawlings
Schoenoplectus californicus
© 2022 John Rawlings
Schoenoplectus californicus
© 2021 Ron Vanderhoff

native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus pungens var. longispicatus
© 2008 Steve Matson
Schoenoplectus pungens var. longispicatus
© 2008 Steve Matson
Schoenoplectus pungens var. longispicatus
© 2022 R.A. Chasey

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

Senecio elegans    Redpurple ragwort
non-native
Annual herb

ASTERACEAE

Senecio elegans
© 2015 Toni Corelli
Senecio elegans
© 2012 Michael Perlmutter
Senecio elegans
© 2009 Toni Corelli

Senecio flaccidus var. douglasii    Bush groundsel,  Bush senecio,  Douglas' groundsel
native
Shrub

ASTERACEAE

Senecio flaccidus var. douglasii
© 2018 Richard Spjut
Senecio flaccidus var. douglasii
© 2019 Ron Vanderhoff
Senecio flaccidus var. douglasii
© 2023 Helen Hancock

Senecio 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
© 2019 Ron Vanderhoff
Senecio vulgaris
© 2021 Toni Corelli

Setaria viridis    Green bristlegrass,  Green foxtail
non-native
Annual grass

POACEAE

Setaria viridis
© 2017 Ron Vanderhoff
Setaria viridis
© 2012 Zoya Akulova-Barlow
Setaria viridis
© 2021 David popp

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

MALVACEAE

Sidalcea malviflora ssp. laciniata
© 2020 David Greenberger
Sidalcea malviflora ssp. laciniata
© 2021 Maria Stokes
Sidalcea malviflora ssp. laciniata
© 2021 Heather Brady DeQuincy

Silene gallica    Common catchfly,  Windmill pink
non-native
Annual herb

CARYOPHYLLACEAE

Silene gallica
© 2019 Mary Wloch
Silene gallica
© 2017 Gary McDonald
Silene gallica
© 2019 Gary McDonald

Silybum marianum    Blessed milkthistle,  Milk thistle
invasive non-native
Annual, Perennial herb

ASTERACEAE

Silybum marianum
© 2020 Nancy Hamlett
Silybum marianum
© 2019 Marisa Persaud
Silybum marianum
© 2018 Angelique Herman

Sinapis arvensis    Charlock mustard
invasive non-native
Annual herb

BRASSICACEAE

Sinapis arvensis
© 2020 Randy Huey
Sinapis arvensis
© 2022 Mike Russler
Sinapis arvensis
© 2023 Andy Ford

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

Sisyrinchium californicum    California golden eyed grass,  Golden blue eyed grass,  Yellow eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium californicum
© 2021 Suzanne L. Weakley
Sisyrinchium californicum
© 2019 Cynthia Powell
Sisyrinchium californicum
© 2021 Jamie Spielmann

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

SOLANACEAE

Solanum americanum
© 2014 Steve Matson
Solanum americanum
© 2019 Gary McDonald
Solanum americanum
© 2021 David Wolfson

Solanum douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

Solanum douglasii
© 2006 Steve Matson
Solanum douglasii
© 2006 Steve Matson
Solanum douglasii
© 2006 Steve Matson

Solanum umbelliferum    Blue witch nightshade,  Bluewitch nightshade
native
Shrub

SOLANACEAE

Solanum umbelliferum
© 2014 Steve Matson
Solanum umbelliferum
© 2014 Steve Matson
Solanum umbelliferum
© 2014 Steve Matson

Solidago elongata    West coast canada goldenrod
native
Perennial herb

ASTERACEAE

Solidago elongata
© 2003 Steve Matson
Solidago elongata
© 2021 Mike Russler
Solidago elongata
© 2022 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
© 2022 Diana Wahl
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

Sparganium eurycarpum    Broadfruit bur reed
native
Perennial herb

TYPHACEAE

Sparganium eurycarpum
© 2020 Ron Vanderhoff
Sparganium eurycarpum
© 2020 Ron Vanderhoff
Sparganium eurycarpum
© 2020 Ron Vanderhoff

Spartium junceum    Gorse,  Spanish broom
invasive non-native
Shrub

FABACEAE

Spartium junceum
© 2020 Ron Vanderhoff
Spartium junceum
© 2006 Jennifer Naegele
Spartium junceum
© 2021 Mary Herr

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis
© 2019 Diane Etchison
Spergula arvensis
© 2020 Mary Conway
Spergula arvensis
© 2022 Cynthia Powell

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

CARYOPHYLLACEAE

Spergularia bocconi
© 2021 Ron Vanderhoff
Spergularia bocconi
© 2021 Ron Vanderhoff
Spergularia bocconi
© 2019 Ron Vanderhoff

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

CARYOPHYLLACEAE

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

Spergularia marina    Salt marsh sand spurry
native
Annual herb

CARYOPHYLLACEAE

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

Spergularia rubra    Purple sand spurry,  Red sandspurry,  Ruby sandspurry
non-native
Annual, Perennial herb

CARYOPHYLLACEAE

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

Spiranthes romanzoffiana    Hooded ladies tresses,  Hooded ladies' tresses,  Ladies' tresses
native
Perennial herb

ORCHIDACEAE

Spiranthes romanzoffiana
© 2003 Steve Matson
Spiranthes romanzoffiana
© 2003 Steve Matson
Spiranthes romanzoffiana
© 2003 Steve Matson

Stachys ajugoides    Ajuga hedge nettle,  Bugle hedgenettle,  Hedge nettle
native
Perennial herb

LAMIACEAE

Stachys ajugoides
© 2021 Mike Russler
Stachys ajugoides
© 2014 James Gonsman
Stachys ajugoides
© 2023 Mike Russler

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

Stachys pycnantha    Short spike hedge nettle,  Shortspike hedgenettle
native
Perennial herb

LAMIACEAE

Stachys pycnantha
© 2023 David Wolfson
Stachys pycnantha
© 2019 David Wolfson
Stachys pycnantha
© 2021 Dan Quinn

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

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

Stephanomeria cichoriacea    Chicory leaved stephanomeria,  Chicoryleaf wirelettuce,  Fort tejon milk aster
native
Perennial herb

ASTERACEAE

Stephanomeria cichoriacea
© 2019 David Greenberger
Stephanomeria cichoriacea
© 2012 Ron Vanderhoff
Stephanomeria cichoriacea
© 2018 John Game

Stipa lepida    Foothill needle grass
native
Perennial grass

POACEAE

Stipa lepida
© 2017 Gary McDonald
Stipa lepida
© 2023 Ron Vanderhoff
Stipa lepida
© 2017 Gary McDonald

Stipa pulchra    Purple needle grass
native
Perennial grass

POACEAE

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

native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. glandulosus
© 2003 Keir Morse
Streptanthus glandulosus ssp. glandulosus
© 2020 Stacie Wolny
Streptanthus glandulosus ssp. glandulosus
© 2021 Bryant Baker

Stuckenia pectinata    Sago pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Stuckenia pectinata
© 2021 Ron Vanderhoff
Stuckenia pectinata
© 2021 Ron Vanderhoff
Stuckenia pectinata
© 2021 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

Taraxia ovata    Sun cup,  Goldeneggs
native
Perennial herb

ONAGRACEAE

Taraxia ovata
© 2017 Steve Matson
Taraxia ovata
© 2017 Steve Matson
Taraxia ovata
© 2017 Steve Matson

Tetragonia tetragonoides    New zealand spinach
non-native
Annual herb

AIZOACEAE

Tetragonia tetragonoides
© 2021 Michelle Karle
Tetragonia tetragonoides
© 2021 Michelle Karle
Tetragonia tetragonoides
© 2023 R.A. Chasey

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

Thysanocarpus laciniatus    Common lace pod,  Mountain fringepod,  Narrow leaved fringe pod
native
Annual herb

BRASSICACEAE

Thysanocarpus laciniatus
© 2021 Helen Hancock
Thysanocarpus laciniatus
© 2021 R.A. Chasey
Thysanocarpus laciniatus
© 2021 Helen Hancock

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

APIACEAE

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

Torilis nodosa    Hedge parsley,  Knotted hedge parsley,  Knotted hedgeparsley
non-native
Annual herb

APIACEAE

Torilis nodosa
© 2011 Steve Matson
Torilis nodosa
© 2011 Steve Matson
Torilis nodosa
© 2011 Steve Matson

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

ANACARDIACEAE

Toxicodendron diversilobum
© 2020 Ron Vanderhoff
Toxicodendron diversilobum
© 2019 Randy Huey
Toxicodendron diversilobum
© 2021 Bryant Baker

Toxicoscordion fremontii    Fremont's star lily,  Fremont's death camas
native
Perennial herb

MELANTHIACEAE

Toxicoscordion fremontii
© 2024 Carissa Brands
Toxicoscordion fremontii
© 2024 Mary Conway
Toxicoscordion fremontii
© 2024 Lynn Overtree

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon porrifolius
© 2019 Julie dinsdale
Tragopogon porrifolius
© 2015 David Wolfson
Tragopogon porrifolius
© 2020 Martin Cooper

Trifolium angustifolium    Narrow leaved clover,  Narrowleaf crimson clover
non-native
Annual herb

FABACEAE

Trifolium angustifolium
© 2019 Gary McDonald
Trifolium angustifolium
© 2021 Mary Gerbic
Trifolium angustifolium
© 2022 SMCP NRM Intern

Trifolium bifidum var. decipiens    Notch leaf clover
native
Annual herb

FABACEAE

Trifolium bifidum var. decipiens
© 2022 R.A. Chasey
Trifolium bifidum var. decipiens
© 2022 R.A. Chasey
Trifolium bifidum var. decipiens
© 2021 Cameron Chabre

Trifolium campestre    Field clover,  Low hop clover
non-native
Annual herb

FABACEAE

Trifolium campestre
© 2019 David Wolfson
Trifolium campestre
© 2021 R.A. Chasey
Trifolium campestre
© 2021 R.A. Chasey

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
© 2013 Andrea Williams
Trifolium depauperatum var. amplectens
© 2018 David Greenberger

Trifolium dichotomum    Branched indian clover
native
Annual herb

FABACEAE

Trifolium dichotomum
© 2023 Helen Hancock
Trifolium dichotomum
© 2022 Helen Hancock
Trifolium dichotomum
© 2023 Helen Hancock

Trifolium glomeratum    Clustered clover
non-native
Annual herb

FABACEAE

Trifolium glomeratum
© 2012 Michael Mitchell
Trifolium glomeratum
© 2012 Michael Mitchell
Trifolium glomeratum
© 2023 Donald Burk

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

FABACEAE

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

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson

Trifolium incarnatum    Crimson clover
non-native
Annual herb

FABACEAE

Trifolium incarnatum
© 2008 Steve Matson
Trifolium incarnatum
© 2008 Steve Matson
Trifolium incarnatum
© 2008 Steve Matson

Trifolium macraei    Chilean clover,  Macrae's clover
native
Annual herb

FABACEAE

Trifolium macraei
© 2009 Toni Corelli
Trifolium macraei
© 2022 R.A. Chasey
Trifolium macraei
© 2021 R.A. Chasey

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 repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens
© 2023 Ron Vanderhoff
Trifolium repens
© 2007 Steve Matson
Trifolium repens
© 2017 Gary McDonald

Trifolium subterraneum    Sub clover,  Subterranean clover
non-native
Annual herb

FABACEAE

Trifolium subterraneum
© 2008 Steve Matson
Trifolium subterraneum
© 2008 Steve Matson
Trifolium subterraneum
© 2017 Steve Matson

Trifolium variegatum    Variegated clover,  White tipped clover,  Whitetip clover
native
Annual herb

FABACEAE

Trifolium variegatum
© 2022 Steve Matson
Trifolium variegatum
© 2017 Michael Mitchell
Trifolium variegatum
© 2019 Diane Etchison

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

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

Trifolium wormskioldii    Coast clover,  Cow clover,  Cows clover
native
Perennial herb

FABACEAE

Trifolium wormskioldii
© 2003 Steve Matson
Trifolium wormskioldii
© 2003 Steve Matson
Trifolium wormskioldii
© 2003 Steve Matson

Triglochin scilloides    Flowering-quillwort
native
Annual herb (aquatic)

JUNCAGINACEAE

Triglochin scilloides
© 2018 Carol Witham
Triglochin scilloides
© 2023 Ron Vanderhoff
Triglochin scilloides
© 2011 Hattie Brown

Triglochin striata    Three ribbed arrow grass,  Threerib arrowgrass
native
Perennial herb (aquatic)

JUNCAGINACEAE

Triglochin striata
© 2022 Ken Hickman
Triglochin striata
© 2021 Jutta Burger
Triglochin striata
© 2021 John Game

Triphysaria eriantha ssp. rosea    Johnny tuck,  Pink butter 'n' eggs
native
Annual herb

OROBANCHACEAE

Triphysaria eriantha ssp. rosea
© 2017 Gary Morgret
Triphysaria eriantha ssp. rosea
© 2017 Cynthia Powell
Triphysaria eriantha ssp. rosea
© 2020 Mary Sue Ittner

Triphysaria pusilla    Dwarf owl's clover,  Little owl's clover
native
Annual herb

OROBANCHACEAE

Triphysaria pusilla
© 2018 Steve Matson
Triphysaria pusilla
© 2018 Steve Matson
Triphysaria pusilla
© 2018 Steve Matson

Triteleia ixioides ssp. cookii    Cook's triteleia
rare native
Perennial herb (bulb)

THEMIDACEAE

Triteleia ixioides ssp. cookii
© 2000 Joseph Dougherty/ecology.org

Triteleia ixioides ssp. ixioides    Golden brodiaea
native
Perennial herb

THEMIDACEAE

Triteleia ixioides ssp. ixioides
© 2020 Mary Conway
Triteleia ixioides ssp. ixioides
© 2019 Mary Conway
Triteleia ixioides ssp. ixioides
© 2020 John Rawlings

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
© 2022 Ron Vanderhoff

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

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

VERBENACEAE

Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson
Verbena lasiostachys var. lasiostachys
© 2010 Steve Matson

Verbena litoralis    Seashore vervain
invasive non-native
Biennial, Perennial herb

VERBENACEAE

Verbena litoralis
© 2011 Barry Brekcking
Verbena litoralis
© 2018 Thomas Reyes
Verbena litoralis
© 2021 David popp

Veronica peregrina ssp. xalapensis    Hairy purslane speedwell,  Neckweed,  Purslane speedwell
native
Annual herb

PLANTAGINACEAE

Veronica peregrina ssp. xalapensis
© 2020 Steve Matson
Veronica peregrina ssp. xalapensis
© 2020 Ron Vanderhoff
Veronica peregrina ssp. xalapensis
© 2020 Steve Matson

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 benghalensis    Purple vetch,  Reddish tufted vetch,  Vetch
non-native
Annual herb, Vine

FABACEAE

Vicia benghalensis
© 2010 Toni Corelli
Vicia benghalensis
© 2019 Diane Etchison
Vicia benghalensis
© 2024 R.A. Chasey

Vicia gigantea    Giant vetch
native
Perennial herb

FABACEAE

Vicia gigantea
© 2021 Dana York
Vicia gigantea
© 2019 Cynthia Powell
Vicia gigantea
© 2013 James Gonsman

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

FABACEAE

Vicia sativa ssp. sativa
© 2007 Toni Corelli
Vicia sativa ssp. sativa
© 2020 Ron Vanderhoff
Vicia sativa ssp. sativa
© 2020 Ron Vanderhoff

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

FABACEAE

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

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

APOCYNACEAE

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

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

Yabea microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

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

Zannichellia palustris    Horned pondweed
native
Perennial herb

ZANNICHELLIACEAE

Zannichellia palustris
© 2021 Ron Vanderhoff
Zannichellia palustris
© 2021 Ron Vanderhoff
Zannichellia palustris
© 2021 Ron Vanderhoff

Zeltnera davyi    Davy's centaury
native
Annual herb

GENTIANACEAE

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