logo Calflora Illustrated Plant List 

Carrizo Plain Preserve
San Luis Obispo County

The Nature Conservancy  (1995-01-01)

Record Detail Nearby Surveys What Grows Here?
412 PLANTS
Abronia pogonantha    Mohave sand verbena,  Mojave sand verbena
native
Annual herb

NYCTAGINACEAE

Abronia pogonantha
2019 Matt Berger
Abronia pogonantha
2017 John Doyen
Abronia pogonantha
2017 Adam Chasey

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2022 Andy Ford
Achillea millefolium
2014 James Gonsman
Achillea millefolium
2023 Ron Vanderhoff

Achnatherum speciosum    Desert needle grass
native
Perennial grass

POACEAE

Achnatherum speciosum
2011 Steve Matson
Achnatherum speciosum
2022 Dana York
Achnatherum speciosum
2018 Liz Block

Achyrachaena mollis    Blow-Wives
native
Annual herb

ASTERACEAE

Achyrachaena mollis
2015 Diane Etchison
Achyrachaena mollis
2019 Deanna Wargowski
Achyrachaena mollis
2021 Cynthia Powell

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

Adiantum jordanii
2022 BOB CASE
Adiantum jordanii
2019 Ron Vanderhoff
Adiantum jordanii
2019 Susan McDougall

Agoseris retrorsa    Spear leaved agoseris,  Spearleaf agoseris,  Spearleaf mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris retrorsa
2019 Ron Vanderhoff
Agoseris retrorsa
2019 Diane Etchison
Agoseris retrorsa
2022 Helen Hancock

Ailanthus altissima    Ailanthus,  Tree of heaven
invasive non-native
Tree

SIMAROUBACEAE

Ailanthus altissima
2022 Jenny Gossett
Ailanthus altissima
2022 Jenny Gossett
Ailanthus altissima
2020 Julie A. Kierstead

Allenrolfea occidentalis    Iodine bush,  Iodinebush
native
Shrub

CHENOPODIACEAE

Allenrolfea occidentalis
2016 Steve Matson
Allenrolfea occidentalis
2016 Steve Matson
Allenrolfea occidentalis
2021 Cynthia Powell

Allium crispum    Crinkled onion
native
Perennial herb (bulb)

ALLIACEAE

Allium crispum
2023 Bryant Baker
Allium crispum
2017 Joe Engelbrecht
Allium crispum
2012 Gary McDonald

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

ALLIACEAE

Allium fimbriatum
2022 R.A. Chasey
Allium fimbriatum
2003 Dianne Fristrom
Allium fimbriatum
2022 R.A. Chasey

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

ALLIACEAE

Allium howellii
2019 Matt Berger
Allium howellii
2020 Matt Berger
Allium howellii
2015 Debra L. Cook

Allium lacunosum    Pitted onion
native
Perennial herb (bulb)

ALLIACEAE

Allium lacunosum
2016 Steve Matson
Allium lacunosum
2016 Steve Matson
Allium lacunosum
2016 Steve Matson

Allium peninsulare    Mexicali onion
native
Perennial herb (bulb)

ALLIACEAE

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

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

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

Ambrosia acanthicarpa    Annual bursage,  Annual burweed
native
Annual herb

ASTERACEAE

Ambrosia acanthicarpa
2009 Steve Matson
Ambrosia acanthicarpa
2014 Steve Matson
Ambrosia acanthicarpa
2021 Mike Russler

Amsinckia douglasiana    Douglas' fiddleneck
rare native
Annual herb

BORAGINACEAE

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

Amsinckia lycopsoides    Bugloss fiddleneck,  Tarweed fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia lycopsoides
2021 David popp
Amsinckia lycopsoides
2023 Catherine Chang
Amsinckia lycopsoides
2022 Catherine Chang

Amsinckia menziesii var. intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

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

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

BORAGINACEAE

Amsinckia menziesii var. menziesii
2020 Ron Vanderhoff
Amsinckia menziesii var. menziesii
2018 Gary McDonald
Amsinckia menziesii var. menziesii
2018 Gary McDonald

Amsinckia tessellata    Bristly fiddleneck,  Checker fiddleneck,  Devil's lettuce
native
Annual herb

BORAGINACEAE

Amsinckia tessellata
2019 Susan McDougall
Amsinckia tessellata
2022 Mike Russler
Amsinckia tessellata
2022 Steve Matson

Amsinckia vernicosa var. furcata    Forked fiddleneck
rare native
Annual herb

BORAGINACEAE

Amsinckia vernicosa var. furcata
2020 David Greenberger
Amsinckia vernicosa var. furcata
2019 Matt Berger
Amsinckia vernicosa var. furcata
2022 Mike Russler

Ancistrocarphus filagineus    False neststraw,  Woolly fishhooks
native
Annual herb

ASTERACEAE

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

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

PRIMULACEAE

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

Anisocoma acaulis    Scale bud,  Scalebud
native
Annual herb

ASTERACEAE

Anisocoma acaulis
2023 Bob Steele
Anisocoma acaulis
2020 Steve Matson
Anisocoma acaulis
2020 Matt Berger

Antirrhinum ovatum    Oval leaved snapdragon
rare native
Annual herb

PLANTAGINACEAE

Antirrhinum ovatum
2022 Mike Russler
Antirrhinum ovatum
2022 Mike Russler
Antirrhinum ovatum
2022 Mike Russler

Arabis pulchra    Beautiful rockcress
native
Perennial herb

BRASSICACEAE

Arabis pulchra
2021 Mike Russler
Arabis pulchra
2012 Steve Matson
Arabis pulchra
2012 Steve Matson

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

ERICACEAE

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

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

ASTERACEAE

Artemisia californica
2018 James Gonsman
Artemisia californica
2022 Julia Markey
Artemisia californica
2020 Ron Vanderhoff

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
2013 Brent Morgan
Artemisia douglasiana
2022 Ron Vanderhoff
Artemisia douglasiana
2021 Mike Russler

Asclepias erosa    Desert milkweed
native
Perennial herb

APOCYNACEAE

Asclepias erosa
2020 Alexander S. Kunz
Asclepias erosa
2020 Alexander S. Kunz
Asclepias erosa
2003 James M. Andre

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

Asclepias fascicularis
2018 Ron Vanderhoff
Asclepias fascicularis
2014 Steve Matson
Asclepias fascicularis
2019 Ron Vanderhoff

Aster sp.    Small Tree-Mallow


Astragalus asymmetricus    San joaquin milk vetch,  San joaquin milkvetch
native
Perennial herb

FABACEAE

Astragalus asymmetricus
2020 Susan McDougall
Astragalus asymmetricus
2020 Susan McDougall
Astragalus asymmetricus
2015 John Doyen

Astragalus didymocarpus    Dwarf white milk vetch,  Two seeded milkvetch
native
Annual herb

FABACEAE

Astragalus didymocarpus
2019 Matt Berger
Astragalus didymocarpus
2019 David Wolfson
Astragalus didymocarpus
2021 Jacob Smith

Astragalus lentiginosus var. nigricalycis    Black hair milk vetch,  Freckled milkvetch
native
Annual, Perennial herb

FABACEAE

Astragalus lentiginosus var. nigricalycis
2020 David Greenberger
Astragalus lentiginosus var. nigricalycis
2005 Steve Matson
Astragalus lentiginosus var. nigricalycis
2019 Matt Berger

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

FABACEAE

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

Astragalus oxyphysus    Stanislaus milkvetch
native
Perennial herb

FABACEAE

Astragalus oxyphysus
2020 David Greenberger
Astragalus oxyphysus
2016 Steve Matson
Astragalus oxyphysus
2016 Steve Matson

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

BRASSICACEAE

Athysanus pusillus
2021 Paul Aigner
Athysanus pusillus
2008 Steve Matson
Athysanus pusillus
2022 Catherine Chang

Atriplex argentea    Silver saltweed,  Silverscale saltbush
native
Annual herb

CHENOPODIACEAE

Atriplex argentea
2022 Naomi Fraga
Atriplex argentea
2022 Dianne Lake
Atriplex argentea
2022 Matt Berger

Atriplex canescens    Fourwing saltbush,  Hoary saltbush,  Shadscale
native
Shrub

CHENOPODIACEAE

Atriplex canescens
2014 Jesse Rorabaugh
Atriplex canescens
2001 Thomas M. Elder, M.D.
Atriplex canescens
2022 Steve Matson

Atriplex confertifolia    Shadscale,  Spiny saltbush
native
Shrub

CHENOPODIACEAE

Atriplex confertifolia
2015 Steve Matson
Atriplex confertifolia
2015 Steve Matson
Atriplex confertifolia
2016 Steve Matson

Atriplex coronata    Crownscale
native
Annual herb

CHENOPODIACEAE

Atriplex coronata
2022 Ryan O'Dell
Atriplex coronata
2010 Neal Kramer
Atriplex coronata
2010 Chris Winchell

Atriplex fruticulosa    Ball saltbush,  Valley saltbush
native
Perennial herb

CHENOPODIACEAE

Atriplex fruticulosa
2023 R.A. Chasey
Atriplex fruticulosa
2017 Adam Chasey
Atriplex fruticulosa
2021 Cynthia Powell

Atriplex lentiformis    Big saltbush
native
Shrub

CHENOPODIACEAE

Atriplex lentiformis
2019 Diane Etchison
Atriplex lentiformis
2020 R.A. Chasey
Atriplex lentiformis
2017 Ron Vanderhoff

Atriplex phyllostegia    Coville's orach
native
Annual herb

CHENOPODIACEAE

Atriplex phyllostegia
2016 Steve Matson
Atriplex phyllostegia
2016 Steve Matson
Atriplex phyllostegia
2016 Steve Matson

Atriplex polycarpa    Allscale saltbush,  Allscale, cattle spinach,  Cattle saltbush
native
Shrub

CHENOPODIACEAE

Atriplex polycarpa
2021 Mike Russler
Atriplex polycarpa
2022 Steve Matson
Atriplex polycarpa
2022 Steve Matson

Atriplex rosea    Redscale,  Tumbling oracle,  Tumbling saltweed
non-native
Annual herb

CHENOPODIACEAE

Atriplex rosea
2022 R.A. Chasey
Atriplex rosea
2022 R.A. Chasey
Atriplex rosea
2015 jamie smith

Atriplex spinifera    Mojave saltbush,  Spinescale saltbush
native
Shrub

CHENOPODIACEAE

Atriplex spinifera
2019 Jacob Smith
Atriplex spinifera
2020 David Greenberger
Atriplex spinifera
2018 Richard Spjut

Atriplex vallicola    Lost hills crownscale
rare native
Annual herb

CHENOPODIACEAE

Atriplex vallicola
2022 Ryan O'Dell
Atriplex vallicola
2018 Mitchell Coleman
Atriplex vallicola
2022 Ryan O'Dell

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 Ron Vanderhoff

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

ASTERACEAE

Baccharis salicifolia
2023 Julia Markey
Baccharis salicifolia
2018 Ron Vanderhoff
Baccharis salicifolia
2020 Aaron Echols

Blennosperma nanum    Common stickyseed,  Yellow carpet
native
Annual herb

ASTERACEAE

Blennosperma nanum
2022 Catherine Chang
Blennosperma nanum
2023 R.A. Chasey
Blennosperma nanum
2023 R.A. Chasey

Blepharizonia plumosa    Big tarweed
rare native
Annual herb

ASTERACEAE

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

Bloomeria crocea    Common goldenstar,  Golden star
native
Perennial herb

THEMIDACEAE

Bloomeria crocea
2018 Janith Johnson
Bloomeria crocea
2019 Michael Mitchell
Bloomeria crocea
2014 Steve Matson

Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
2020 Diane Etchison
Brassica nigra
2019 Ron Vanderhoff
Brassica nigra
2019 Ron Vanderhoff

Brickellia nevinii    Nevin's brickellbush,  Nevin's brickellia
native
Shrub

ASTERACEAE

Brickellia nevinii
2019 Ron Vanderhoff
Brickellia nevinii
2019 Ron Vanderhoff
Brickellia nevinii
2019 Ron Vanderhoff

Bromus arenarius    Australian brome,  Australian chess
non-native
Annual grass

POACEAE

Bromus arenarius
2019 Ron Vanderhoff
Bromus arenarius
2019 Ron Vanderhoff
Bromus arenarius
2019 Ron Vanderhoff

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

invasive non-native
Annual grass

POACEAE

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

Bromus trinii    Chilean chess
non-native
Annual grass

POACEAE

Bromus trinii
2023 John Rawlings
Bromus trinii
2006 Steve Matson
Bromus trinii
2006 Steve Matson

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2021 Rebecca Nelson
Calandrinia ciliata
2019 Ron Vanderhoff

Callitriche marginata    California water starwort,  Winged water starwort
native
Annual herb (aquatic)

PLANTAGINACEAE

Callitriche marginata
2019 Ron Vanderhoff
Callitriche marginata
2019 Ron Vanderhoff
Callitriche marginata
2019 Ron Vanderhoff

Calochortus clavatus ssp. pallidus    Clubhair mariposa lily,  Pale yellow mariposa
native
Perennial herb

LILIACEAE

Calochortus clavatus ssp. pallidus
2021 Mike Russler
Calochortus clavatus ssp. pallidus
2021 Dee Shea Himes
Calochortus clavatus ssp. pallidus
2021 Mike Russler

Calochortus splendens    Splendid mariposa lily
native
Perennial herb

LILIACEAE

Calochortus splendens
2020 Bo Gould
Calochortus splendens
2019 Gordon Jenkins
Calochortus splendens
2019 Ron Vanderhoff

Calochortus venustus    Butterfly mariposa lily
native
Perennial herb

LILIACEAE

Calochortus venustus
2019 Randy Huey
Calochortus venustus
Geoff Burleigh
Calochortus venustus
2012 Zack Abbey

Calyptridium monandrum    Common pussypaws,  Pussy paws
native
Annual herb

MONTIACEAE

Calyptridium monandrum
2019 Stacie Wolny
Calyptridium monandrum
2020 Ron Vanderhoff
Calyptridium monandrum
2020 Ron Vanderhoff

Camissonia boothii ssp. decorticans    Shredding evening-primrose
native
Annual herb

ONAGRACEAE

Camissonia boothii ssp. decorticans
2019 Matt Berger
Camissonia boothii ssp. decorticans
2020 David Greenberger
Camissonia boothii ssp. decorticans
2017 Bonnie Nickel

Camissonia campestris    Field primrose,  Field sun cup,  Mojave suncup
native
Annual herb

ONAGRACEAE

Camissonia campestris
2023 Richard Spjut
Camissonia campestris
2019 Diane Etchison
Camissonia campestris
2019 Richard Spjut

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

ONAGRACEAE

Camissonia contorta
2022 Mike Russler
Camissonia contorta
2022 Mike Russler
Camissonia contorta
2022 Mike Russler

Camissonia palmeri    Palmer's sun cup ,  Palmer's evening primrose
native
Annual herb

ONAGRACEAE

Camissonia palmeri
2005 Deborah Dozier
Camissonia palmeri
2006 Chris Wagner, SBNF
Camissonia palmeri
2012 Neal Kramer

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

BRASSICACEAE

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

Carex douglasii    Douglas sedge,  Douglas' sedge
native
Perennial grasslike herb

CYPERACEAE

Carex douglasii
2009 Steve Matson
Carex douglasii
2009 Steve Matson
Carex douglasii
2023 Donald Burk

Castilleja affinis    Indian paintbrush
native
Perennial herb

OROBANCHACEAE

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

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

OROBANCHACEAE

Castilleja attenuata
2009 BOB CASE
Castilleja attenuata
2023 R.A. Chasey
Castilleja attenuata
2022 Mike Russler

Castilleja brevistyla    Short style owl's clover,  Shortstyle indian paintbrush
native
Annual herb

OROBANCHACEAE

Castilleja brevistyla
2019 Matt Berger
Castilleja brevistyla
2009 Keir Morse
Castilleja brevistyla
2010 Neal Kramer

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

OROBANCHACEAE

Castilleja densiflora
2018 Margarita Orlova
Castilleja densiflora
2019 Susan McDougall
Castilleja densiflora
2016 Andrew Longman

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

OROBANCHACEAE

Castilleja exserta
2017 B.J. Dion
Castilleja exserta
2018 Saskia Raether
Castilleja exserta
2023 Ron Vanderhoff

Castilleja lineariloba    Sagebrush indian paintbrush,  Thin lobed owl's clover,  Valley tassels
native
Annual herb

OROBANCHACEAE

Castilleja lineariloba
2008 Dee Warenycia
Castilleja lineariloba
2017 David Greenberger
Castilleja lineariloba
2016 Steve Matson

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

OROBANCHACEAE

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

Castilleja subinclusa ssp. subinclusa    Long leaf paintbrush,  Longleaf indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja subinclusa ssp. subinclusa
2021 Dianne Lake
Castilleja subinclusa ssp. subinclusa
2021 Dianne Lake
Castilleja subinclusa ssp. subinclusa
2022 Dianne Lake

Caulanthus californicus    California jewelflower
rare native
Annual herb

BRASSICACEAE

Caulanthus californicus
2020 Mitchell Coleman
Caulanthus californicus
2019 Adam Chasey
Caulanthus californicus
2019 Adam Chasey

Caulanthus coulteri    Coulter's jewel flower,  Coulter's wild cabbage
native
Annual herb

BRASSICACEAE

Caulanthus coulteri
2023 Bryant Baker
Caulanthus coulteri
2023 Wendy Walker
Caulanthus coulteri
2014 Steve Matson

Caulanthus inflatus    Desert candle
native
Annual herb

BRASSICACEAE

Caulanthus inflatus
2020 Wendy Walker
Caulanthus inflatus
2020 David Greenberger
Caulanthus inflatus
2023 Catherine Chang

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

ASTERACEAE

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

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

ASTERACEAE

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

Chaenactis fremontii    Fremont pincushion,  Pincushion flower
native
Annual herb

ASTERACEAE

Chaenactis fremontii
2019 Matt Berger
Chaenactis fremontii
2021 Julie Ann Watson
Chaenactis fremontii
2016 Julie Ann Watson

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

ASTERACEAE

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

Chaenactis stevioides    Desert pincushion,  Esteve pincushion
native
Annual herb

ASTERACEAE

Chaenactis stevioides
2020 Mitchell Coleman
Chaenactis stevioides
2019 Matt Berger
Chaenactis stevioides
2022 Steve Matson

Chaenactis xantiana    Fleshcolor pincushion,  Xantus pincushion,  Xantus' chaenactis
native
Annual herb

ASTERACEAE

Chaenactis xantiana
2019 Matt Berger
Chaenactis xantiana
2021 Mike Russler
Chaenactis xantiana
2021 Mike Russler

Chamaesyce ocellata    Contura creek spurge
native
Annual herb

EUPHORBIACEAE

Chamaesyce ocellata
2021 Mike Russler
Chamaesyce ocellata
2021 Mike Russler
Chamaesyce ocellata
2021 Mike Russler

Chamaesyce polycarpa    Smallseed sandmat
native
Perennial herb

EUPHORBIACEAE

Chamaesyce polycarpa
2019 Mary Wloch
Chamaesyce polycarpa
2010 Steve Matson
Chamaesyce polycarpa
2018 Ron Vanderhoff

Chamomilla occidentalis    Valley mayweed
native
Annual herb

ASTERACEAE

Chamomilla occidentalis
2016 Steve Matson
Chamomilla occidentalis
2016 Steve Matson
Chamomilla occidentalis
1999 Dean Wm. Taylor

Chamomilla suaveolens    Pineapple weed
native
Annual herb

ASTERACEAE

Chamomilla suaveolens
2008 Steve Matson
Chamomilla suaveolens
2019 Diane Etchison
Chamomilla suaveolens
2018 Stacie Wolny

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

CHENOPODIACEAE

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

Chenopodium californicum    California goosefoot,  Pigweed,  Soaproot
native
Perennial herb

CHENOPODIACEAE

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

Chorizanthe angustifolia    Narrow leaf spineflower,  Narrowleaf spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe angustifolia
2020 David Greenberger
Chorizanthe angustifolia
2021 Keir Morse
Chorizanthe angustifolia
2021 Keir Morse

Chorizanthe membranacea    Pink spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe membranacea
2019 Steve Matson
Chorizanthe membranacea
2022 Jim Xerogeanes
Chorizanthe membranacea
2022 Mike Russler

Chorizanthe uniaristata    One awn spineflower,  Oneawn spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe uniaristata
2022 Mike Russler
Chorizanthe uniaristata
2022 Mike Russler
Chorizanthe uniaristata
2022 Mike Russler

Chorizanthe watsonii    Fivetooth spineflower,  Watson's spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe watsonii
2020 Steve Matson
Chorizanthe watsonii
2020 Steve Matson
Chorizanthe watsonii
2022 Steve Matson

Chorizanthe xanti    Riverside spineflower,  Xantus' spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe xanti
2021 Mike Russler
Chorizanthe xanti
2021 Mike Russler
Chorizanthe xanti
2009 Robert Steers

Chrysothamnus nauseosus ssp. mohavensis    Mojave rabbitbrush
native
Shrub

ASTERACEAE

Chrysothamnus nauseosus ssp. mohavensis
2018 Richard Spjut
Chrysothamnus nauseosus ssp. mohavensis
2022 Helen Hancock
Chrysothamnus nauseosus ssp. mohavensis
2022 R.A. Chasey

Cirsium sp.    Small Tree-Mallow


Clarkia cylindrica    Speckled clarkia
native
Annual herb

ONAGRACEAE

Clarkia cylindrica
2020 Matt Berger
Clarkia cylindrica
2019 Matt Berger
Clarkia cylindrica
2022 Amber Bedgood

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

ONAGRACEAE

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

Claytonia gypsophiloides    Gypsum spring beauty,  Gypsum springbeauty
native
Annual herb

MONTIACEAE

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

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

MONTIACEAE

Claytonia perfoliata
2020 Ron Vanderhoff
Claytonia perfoliata
2015 Richard Chasey
Claytonia perfoliata
2022 Mike Russler

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

PLANTAGINACEAE

Collinsia bartsiifolia var. davidsonii
2015 Justin Luong
Collinsia bartsiifolia var. davidsonii
2009 Keir Morse
Collinsia bartsiifolia var. davidsonii
2022 Mike Russler

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

CONVOLVULACEAE

Convolvulus arvensis
2019 Ron Vanderhoff
Convolvulus arvensis
2021 Ron Vanderhoff
Convolvulus arvensis
2005 Steve Matson

Conyza coulteri    Coulter's horseweed
native
Annual herb

ASTERACEAE

Conyza coulteri
2018 Ken Hickman
Conyza coulteri
2006 Adonis (Don) Tate
Conyza coulteri
2012 Lynn Robertson

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

OROBANCHACEAE

Cordylanthus rigidus
2021 Ron Vanderhoff
Cordylanthus rigidus
2021 Patrick Furtado
Cordylanthus rigidus
2009 Keir Morse

Coreopsis bigelovii    Bigelow coreopsis
native
Annual herb

ASTERACEAE

Coreopsis bigelovii
2019 Diane Etchison
Coreopsis bigelovii
2020 John L. Thompson
Coreopsis bigelovii
2020 Matt Berger

Coreopsis calliopsidea    Leafy stemmed coreopsis
native
Annual herb

ASTERACEAE

Coreopsis calliopsidea
2020 David Greenberger
Coreopsis calliopsidea
2021 R.A. Chasey
Coreopsis calliopsidea
2020 David Greenberger

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

Cressa truxillensis    Alkali weed,  Spreading alkaliweed
native
Perennial herb

CONVOLVULACEAE

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

Cryptantha barbigera    Bearded cryptantha,  Bearded forget me not
native
Annual herb

BORAGINACEAE

Cryptantha barbigera
2019 Steve Matson
Cryptantha barbigera
2019 Steve Matson
Cryptantha barbigera
2019 Steve Matson

native
Annual herb

BORAGINACEAE

Cryptantha circumscissa
2020 Matt Berger
Cryptantha circumscissa
2022 Steve Matson
Cryptantha circumscissa
2021 Mike Russler

Cryptantha clokeyi    Clokey's cryptantha,  Prickly cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha clokeyi
2011 Cindy Hopkins
Cryptantha clokeyi
2011 Cindy Hopkins
Cryptantha clokeyi
2011 Xeric Specialties

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

BORAGINACEAE

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

Cryptantha intermedia    Clearwater cryptantha,  Common cryptantha
native
Annual herb

BORAGINACEAE

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

Cryptantha muricata    Pointed cryptantha,  Prickly cryptantha,  Prickly popcorn flower
native
Annual herb

BORAGINACEAE

Cryptantha muricata
2016 Chris Leslie
Cryptantha muricata
2016 Chris Leslie
Cryptantha muricata
2019 Marisa Persaud

Cryptantha nemaclada    Colusa cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha nemaclada
2011 Steve Matson
Cryptantha nemaclada
2011 Steve Matson
Cryptantha nemaclada
Donald Myrick1999 California Academy of Sciences

Cryptantha pterocarya    Winged nut forget me not,  Wingnut cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha pterocarya
2022 Steve Matson
Cryptantha pterocarya
2022 Steve Matson
Cryptantha pterocarya
2019 Diane Etchison

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

CUCURBITACEAE

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

Cucurbita palmata    Coyote gourd,  Coyote melon
native
Annual, Perennial herb

CUCURBITACEAE

Cucurbita palmata
2022 Steve Matson
Cucurbita palmata
2012 George Butterworth
Cucurbita palmata
2022 Steve Matson

Cupressus arizonica    Cuyamaca cypress
rare native
Tree

CUPRESSACEAE

Cupressus arizonica
2022 Ron Vanderhoff
Cupressus arizonica
2022 Ron Vanderhoff
Cupressus arizonica
2022 Ron Vanderhoff

Cupressus macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

Cupressus macrocarpa
2019 Patrick Furtado
Cupressus macrocarpa
2009 Keir Morse
Cupressus macrocarpa
2021 Cynthia Powell

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

CONVOLVULACEAE

Cuscuta californica
2016 Yana Marshall
Cuscuta californica
2018 David popp
Cuscuta californica
2019 stephen rosenthal

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

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

Delphinium gypsophilum ssp. gypsophilum    Gypsum loving larkspur,  Pinoche creek larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium gypsophilum ssp. gypsophilum
2022 Mike Russler
Delphinium gypsophilum ssp. gypsophilum
2022 Mike Russler
Delphinium gypsophilum ssp. gypsophilum
2016 Steve Matson

Delphinium parryi    San bernardino larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium parryi
2019 Diane Etchison
Delphinium parryi
2020 Ron Vanderhoff
Delphinium parryi
2020 Ron Vanderhoff

Delphinium patens ssp. hepaticoideum    Spreading larkspur,  Zigzag larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium patens ssp. hepaticoideum
2007 K Suri
Delphinium patens ssp. hepaticoideum
2021 Arlee Montalvo
Delphinium patens ssp. hepaticoideum
2011 Wynn Anderson

Delphinium recurvatum    Byron larkspur,  Recurved larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium recurvatum
2023 Christopher Collier
Delphinium recurvatum
2019 Diane Etchison
Delphinium recurvatum
2023 Christopher Collier

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

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

Descurainia pinnata    Western tansy mustard,  Western tansymustard,  Yellow tansy mustard
native
Annual herb

BRASSICACEAE

Descurainia pinnata
2017 Barbara Boethling
Descurainia pinnata
2019 Matt Berger
Descurainia pinnata
2019 Angelique Herman

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

BRASSICACEAE

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

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
2021 Sue Graue
Dichelostemma capitatum
2020 Bryant Baker
Dichelostemma capitatum
2020 Cheryl Ballantyne

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

POACEAE

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

Dodecatheon clevelandii    Padre's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii
2013 Steven M Norris
Dodecatheon clevelandii
2013 Steven M Norris
Dodecatheon clevelandii
2012 Jason Matthias Mills

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

CRASSULACEAE

Dudleya cymosa
2019 Paul Aigner
Dudleya cymosa
2018 Elinor Gates
Dudleya cymosa
2019 Chico Hiking Association

Eastwoodia elegans    Eastwoodia,  Yellow aster,  Yellow mock aster
native
Shrub

ASTERACEAE

Eastwoodia elegans
2019 Diane Etchison
Eastwoodia elegans
2021 Mike Russler
Eastwoodia elegans
2010 Neal Kramer

Eleocharis parishii    Parish's spike rush,  Parish's spikerush
native
Perennial grasslike herb

CYPERACEAE

Eleocharis parishii
2014 Steve Matson
Eleocharis parishii
2014 Steve Matson
Eleocharis parishii
2018 Rachelle Gray

Elymus elymoides ssp. elymoides    Squirrel tail grass
native
Perennial grass

POACEAE

Elymus elymoides ssp. elymoides
2020 Susan McDougall
Elymus elymoides ssp. elymoides
2020 Susan McDougall
Elymus elymoides ssp. elymoides
2012 Dylan Neubauer

Elymus glaucus    Blue wildrye
native
Perennial grass

POACEAE

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

Emmenanthe penduliflora    Whispering bells,  Whisperingbells
native
Annual herb

HYDROPHYLLACEAE

Emmenanthe penduliflora
2016 Steven M Norris
Emmenanthe penduliflora
2021 Aaron Echols
Emmenanthe penduliflora
2018 Ron Vanderhoff

Encelia actoni    Acton encelia
native
Shrub

ASTERACEAE

Encelia actoni
2022 Steve Matson
Encelia actoni
2022 Steve Matson
Encelia actoni
2022 Steve Matson

Ephedra californica    California ephedra,  California jointfir,  Desert tea
native
Shrub

EPHEDRACEAE

Ephedra californica
2021 Kristen Nelson
Ephedra californica
2021 Kristen Nelson
Ephedra californica
2022 Mike Russler

Ephedra viridis    Green ephedra,  Mormon tea,  Mountain ephedra
native
Shrub

EPHEDRACEAE

Ephedra viridis
2021 Bryant Baker
Ephedra viridis
2021 Bryant Baker
Ephedra viridis
2021 Bryant Baker

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 pygmaeum    Smooth boisduvalia
native
Annual herb

ONAGRACEAE

Epilobium pygmaeum
2022 R.A. Chasey
Epilobium pygmaeum
2022 R.A. Chasey
Epilobium pygmaeum
2017 James Bailey

Eremalche exilis    White mallow
native
Annual herb

MALVACEAE

Eremalche exilis
2022 Steve Matson
Eremalche exilis
2022 Steve Matson
Eremalche exilis
2022 Ryan O'Dell

Eremalche parryi    Parry's mallow
native
Annual herb

MALVACEAE

Eremalche parryi
2019 Rachelle Gray
Eremalche parryi
2022 Mike Russler
Eremalche parryi
2022 Mike Russler

Eremocarpus setigerus    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Eremocarpus setigerus
2018 Rachelle Gray
Eremocarpus setigerus
2011 Steve Matson
Eremocarpus setigerus
2011 Steve Matson

Eriastrum densifolium ssp. austromontanum    Perennial vool star,  Southern mountain eriastrum
native
Perennial herb

POLEMONIACEAE

Eriastrum densifolium ssp. austromontanum
2022 Mike Russler
Eriastrum densifolium ssp. austromontanum
2022 Mike Russler
Eriastrum densifolium ssp. austromontanum
2022 Mike Russler

Eriastrum densifolium ssp. elongatum    Giant eriastrum,  Perennial wool star
native
Perennial herb

POLEMONIACEAE

Eriastrum densifolium ssp. elongatum
2019 Michael Mitchell
Eriastrum densifolium ssp. elongatum
2019 Michael Mitchell
Eriastrum densifolium ssp. elongatum
2020 R.A. Chasey

Eriastrum diffusum    Miniature wool star,  Miniature eriastrum,  Miniature woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum diffusum
2020 Steve Matson
Eriastrum diffusum
2020 Steve Matson
Eriastrum diffusum
2020 Steve Matson

Eriastrum eremicum ssp. eremicum    Desert eriastrum,  Desert wool star,  Desert woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum eremicum ssp. eremicum
2017 Bonnie Nickel
Eriastrum eremicum ssp. eremicum
2010 Neal Kramer
Eriastrum eremicum ssp. eremicum
2014 Don Davis

Eriastrum hooveri    Hoover's eriastrum,  Hoover's woollystar
rare native
Annual herb

POLEMONIACEAE

Eriastrum hooveri
2020 Marlee Antill
Eriastrum hooveri
2020 Marlee Antill
Eriastrum hooveri
2013 Neal Kramer

Eriastrum pluriflorum    Many flowered eriastrum,  Tehachapi woollystar
native
Annual herb

POLEMONIACEAE

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

Ericameria cuneata    Cliff goldenbush,  Desert rock goldenbush,  Wedgeleaf goldenbush
native
Shrub

ASTERACEAE

Ericameria cuneata
2022 Suzanne L. Weakley
Ericameria cuneata
2022 Mike Russler
Ericameria cuneata
2022 Mike Russler

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

ASTERACEAE

Ericameria linearifolia
2015 James Gonsman
Ericameria linearifolia
2022 Suzanne L. Weakley
Ericameria linearifolia
2014 Steve Matson

Eriogonum angulosum    Angled stem buckwheat,  Anglestem buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum angulosum
2021 Mike Russler
Eriogonum angulosum
2021 Mike Russler
Eriogonum angulosum
2009 Keir Morse

Eriogonum baileyi    Bailey buckwheat,  Bailey's buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum baileyi
2019 Diane Etchison
Eriogonum baileyi
2019 Matt Berger
Eriogonum baileyi
2019 Diane Etchison

Eriogonum cithariforme    Cithara buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum cithariforme
2011 George Butterworth
Eriogonum cithariforme
2011 George Butterworth
Eriogonum cithariforme
2011 George Butterworth

Eriogonum covilleanum    Coville's buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum covilleanum
2022 Mike Russler
Eriogonum covilleanum
2022 Mike Russler
Eriogonum covilleanum
2022 Mike Russler

Eriogonum davidsonii    Davidson buckwheat,  Davidson's buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum davidsonii
2022 Mike Russler
Eriogonum davidsonii
2022 Mike Russler
Eriogonum davidsonii
2022 Mike Russler

Eriogonum elongatum var. elongatum    Long stemmed buckwheat
native
Perennial herb

POLYGONACEAE

Eriogonum elongatum var. elongatum
2017 Ron Vanderhoff
Eriogonum elongatum var. elongatum
2019 Aaron Echols
Eriogonum elongatum var. elongatum
2021 Mike Russler

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

POLYGONACEAE

Eriogonum fasciculatum var. polifolium
2020 Ron Vanderhoff
Eriogonum fasciculatum var. polifolium
2021 Mike Russler
Eriogonum fasciculatum var. polifolium
2022 Steve Matson

Eriogonum gossypinum    Cottony buckwheat
rare native
Annual herb

POLYGONACEAE

Eriogonum gossypinum
2019 James Bailey
Eriogonum gossypinum
2023 Matt Berger
Eriogonum gossypinum
2023 Matt Berger

Eriogonum gracillimum    Rose and white buckwheat,  Slender stemmed buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum gracillimum
2022 Ryan O'Dell
Eriogonum gracillimum
2012 Terrence Gosliner
Eriogonum gracillimum
2021 R.A. Chasey

Eriogonum heermannii    Heerman buckwheat,  Heermann's buckwheat
native
Shrub

POLYGONACEAE

Eriogonum heermannii
2022 Steve Matson
Eriogonum heermannii
2022 Steve Matson
Eriogonum heermannii
2009 Steve Matson

Eriogonum inflatum    Desert trumpet
native
Perennial herb

POLYGONACEAE

Eriogonum inflatum
2022 Steve Matson
Eriogonum inflatum
2022 Steve Matson
Eriogonum inflatum
2018 Diane Etchison

Eriogonum maculatum    Angle stermed buckwheat,  Spotted buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum maculatum
2022 Steve Matson
Eriogonum maculatum
2022 Steve Matson
Eriogonum maculatum
2022 Steve Matson

Eriogonum nudum var. indictum    Naked buckwheat,  Protruding buckwheat
rare native
Perennial herb

POLYGONACEAE

Eriogonum nudum var. indictum
2021 Mike Russler
Eriogonum nudum var. indictum
2021 Mike Russler
Eriogonum nudum var. indictum
2021 Mike Russler

Eriogonum ordii    Fort mojave buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum ordii
2016 Steve Matson
Eriogonum ordii
2016 Steve Matson
Eriogonum ordii
2016 Steve Matson

Eriogonum trichopes    Little desert buckwheat,  Little deserttrumpet,  Little trumpet
native
Annual herb

POLYGONACEAE

Eriogonum trichopes
2022 Steve Matson
Eriogonum trichopes
2019 Matt Berger
Eriogonum trichopes
2019 Matt Berger

Eriogonum viridescens    Bright green buckwheat,  Twotooth buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum viridescens
2022 Ryan O'Dell
Eriogonum viridescens
2019 Matt Berger
Eriogonum viridescens
2021 Mike Russler

Eriophyllum confertiflorum    Golden yarrow,  Yellow yarrow
native
Shrub

ASTERACEAE

Eriophyllum confertiflorum
2019 Stacie Wolny
Eriophyllum confertiflorum
2019 Diane Etchison
Eriophyllum confertiflorum
2022 Mojgan Mahdizadeh

Eriophyllum pringlei    Pringle eriophyllum,  Pringle's woolly sunflower
native
Annual herb

ASTERACEAE

Eriophyllum pringlei
2019 Diane Etchison
Eriophyllum pringlei
2020 Bryant Baker
Eriophyllum pringlei
2020 Bryant Baker

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

GERANIACEAE

Erodium botrys
2014 Bryan Derr
Erodium botrys
2017 Gary McDonald
Erodium botrys
2015 Ken Lunders

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
2020 Julia Markey
Erodium cicutarium
2022 Steve Matson

Erodium macrophyllum    Round leaved filaree
native
Annual herb

GERANIACEAE

Erodium macrophyllum
2022 Cynthia Adkisson
Erodium macrophyllum
2013 Neal Kramer
Erodium macrophyllum
2015 Chris Winchell

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 James Bailey
Erodium moschatum
2018 Stacie Wolny

Eryngium spinosepalum    Spiny sepaled button celery,  Spinysepal eryngo
rare native
Annual, Perennial herb

APIACEAE

Eryngium spinosepalum
2017 Mary Merriman
Eryngium spinosepalum
2017 Douglas Gordon-Blackwood
Eryngium spinosepalum
2019 Dane Dettloff

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
2018 Janith Johnson
Erysimum capitatum
2007 Thomas Stoughton
Erysimum capitatum
2021 Cyril Guyot

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

Eschscholzia lemmonii    Lemmon's poppy
native
Annual herb

PAPAVERACEAE

Eschscholzia lemmonii
2016 Steve Matson
Eschscholzia lemmonii
2017 Richard Spjut
Eschscholzia lemmonii
2016 Steve Matson

Eucalyptus polyanthemos    Redbox,  Silver dollar gum
non-native
Tree

MYRTACEAE

Eucalyptus polyanthemos
2021 Ron Vanderhoff
Eucalyptus polyanthemos
2021 Ron Vanderhoff
Eucalyptus polyanthemos
2020 Ron Vanderhoff

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

MYRTACEAE


Filago gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Filago gallica
2015 jamie smith
Filago gallica
2013 Keir Morse
Filago gallica
2017 Barbara Boethling

Forestiera pubescens    Desert olive,  Stretchberry
native
Shrub

OLEACEAE

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

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 agrestis    Stinkbells
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria agrestis
2023 Catherine Chang
Fritillaria agrestis
2022 Dee Shea Himes
Fritillaria agrestis
2021 Damon Tighe

Fritillaria biflora    Chocolate lily
native
Perennial herb

LILIACEAE

Fritillaria biflora
2020 David Greenberger
Fritillaria biflora
2021 Aaron Echols
Fritillaria biflora
2020 Susan White

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

RUBIACEAE

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

Garrya flavescens    Ashy silk tassel,  Ashy silktassel
native
Shrub

GARRYACEAE

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

Gilia austro-occidentalis    Southwestern gilia
native
Annual herb

POLEMONIACEAE

Gilia austro-occidentalis
2009 Adonis (Don) Tate
Gilia austro-occidentalis
2009 Adonis (Don) Tate

Gilia brecciarum ssp. jacens    Nevada gilia
native
Annual herb

POLEMONIACEAE

Gilia brecciarum ssp. jacens
2003 Aaron Schusteff
Gilia brecciarum ssp. jacens
2022 Ryan O'Dell
Gilia brecciarum ssp. jacens
2022 Ryan O'Dell

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

POLEMONIACEAE

Gilia clivorum
2013 Gary McDonald
Gilia clivorum
2013 Gary McDonald
Gilia clivorum
2013 Gary McDonald

Gilia malior    Scrub gilia
native
Annual herb

POLEMONIACEAE

Gilia malior
2006 James M. Andre
Gilia malior
2017 John Doyen
Gilia malior
2014 Steve Matson

Gilia minor    Little gilia
native
Annual herb

POLEMONIACEAE

Gilia minor
2020 Matt Berger
Gilia minor
2020 Matt Berger
Gilia minor
2020 Matt Berger

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

POLEMONIACEAE

Gilia tricolor
2020 Amy Rapport
Gilia tricolor
2022 Steve Matson
Gilia tricolor
2016 Richard Chasey

Gnaphalium luteo-album    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Gnaphalium luteo-album
2011 Toni Corelli
Gnaphalium luteo-album
2019 Diane Etchison
Gnaphalium luteo-album
2021 Ron Vanderhoff

Grayia spinosa    Hop sage,  Spiny hopsage
native
Shrub

CHENOPODIACEAE

Grayia spinosa
2019 Susan McDougall
Grayia spinosa
2019 Diane Etchison
Grayia spinosa
2019 Diane Etchison

Guillenia lasiophylla    California mustard
native
Annual herb

BRASSICACEAE

Guillenia lasiophylla
2023 Steve Matson
Guillenia lasiophylla
2019 Paul Aigner
Guillenia lasiophylla
2020 Matt Berger

Guillenia lemmonii    Lemmon's mustard
native
Annual herb

BRASSICACEAE

Guillenia lemmonii
2006 Steve Matson
Guillenia lemmonii
2006 Steve Matson
Guillenia lemmonii
2006 Steve Matson

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

ASTERACEAE

Gutierrezia californica
2021 Helen Hancock
Gutierrezia californica
2010 Neal Kramer
Gutierrezia californica
2018 Ron Vanderhoff

Hazardia stenolepis    Narrow scaled goldenbush,  Serpentine bristleweed
native
Shrub (stem succulent)

ASTERACEAE

Hazardia stenolepis
2012 George Butterworth
Hazardia stenolepis
2012 George Butterworth
Hazardia stenolepis
2011 George Butterworth

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

ASTERACEAE

Helianthus annuus
2019 Bob Case
Helianthus annuus
2019 Laura Moon
Helianthus annuus
2021 Mike Russler

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

HELIOTROPIACEAE

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

Hemiaria hirsuta ssp. cineria    Small Tree-Mallow


Hemizonia fitchii    Spikeweed
native
Annual herb

ASTERACEAE

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

Hemizonia pallida    Kern tarweed
native
Annual herb

ASTERACEAE

Hemizonia pallida
2019 Diane Etchison
Hemizonia pallida
2021 Mike Russler
Hemizonia pallida
2010 Neal Kramer

Hemizonia pentactis    Salinas river tarweed
native
Annual herb

ASTERACEAE

Hemizonia pentactis
2015 Richard Spellenberg
Hemizonia pentactis
2015 Richard Spellenberg
Hemizonia pentactis
2023 Ryan O'Dell

Hemizonia pungens    Common tarweed,  Common spikeweed
native
Annual herb

ASTERACEAE

Hemizonia pungens
2014 Ron Vanderhoff
Hemizonia pungens
2022 Steve Matson
Hemizonia pungens
2009 John Dittes

Heterodraba unilateralis    Ladiestongue mustard
native
Annual herb

BRASSICACEAE

Heterodraba unilateralis
2023 R.A. Chasey
Heterodraba unilateralis
2023 R.A. Chasey
Heterodraba unilateralis
2008 Aaron Schusteff

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

Hollisteria lanata    False spikeflower,  False spineflower
native
Annual herb

POLYGONACEAE

Hollisteria lanata
2021 Mike Russler
Hollisteria lanata
2021 Mike Russler
Hollisteria lanata
2016 Steve Matson

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

POACEAE

Hordeum depressum
2017 Steve Matson
Hordeum depressum
2017 Steve Matson
Hordeum depressum
2017 Steve Matson

Hordeum murinum    Farmer's foxtail,  Foxtail barley,  Mouse barley
invasive non-native
Annual grass

POACEAE

Hordeum murinum
2018 Gary McDonald
Hordeum murinum
2019 Gary McDonald
Hordeum murinum
2017 Gary McDonald

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

POACEAE

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

Hordeum sp.    Small Tree-Mallow


Hutchinsia procumbens    Prostrate hutchinsia
non-native

BRASSICACEAE

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

Hymenoclea salsola    Cheesebrush,  Burrobrush
native
Shrub

ASTERACEAE

Hymenoclea salsola
2022 Steve Matson
Hymenoclea salsola
2022 Steve Matson
Hymenoclea salsola
2023 Keir Morse

Isocoma acradenia var. bracteosa    Bracted alkali goldenbush
native
Shrub

ASTERACEAE

Isocoma acradenia var. bracteosa
2021 Mike Russler
Isocoma acradenia var. bracteosa
2021 Mike Russler
Isocoma acradenia var. bracteosa
2010 Neal Kramer

Isomeris arborea    Bladderpod
native
Shrub

CLEOMACEAE

Isomeris arborea
2020 Ines ye
Isomeris arborea
2018 Thomas Egan
Isomeris arborea
2016 Steven M Norris

Juncus balticus    Baltic rush,  Wire rush
native
Perennial grasslike herb

JUNCACEAE

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

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

JUNCACEAE

Juncus bufonius
2019 Ron Vanderhoff
Juncus bufonius
2019 Ron Vanderhoff
Juncus bufonius
2004 James M. Andre

Juniperus californica    California juniper
native
Shrub

CUPRESSACEAE

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

Krascheninnikovia lanata    Winter fat,  Winterfat
native
Shrub

CHENOPODIACEAE

Krascheninnikovia lanata
2011 Steve Matson
Krascheninnikovia lanata
2019 Marcia Mack
Krascheninnikovia lanata
2011 Steve Matson

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

ASTERACEAE

Lactuca serriola
2017 Gary McDonald
Lactuca serriola
2020 Mark Kircher
Lactuca serriola
2009 Neal Kramer

Lagophylla ramosissima    Branched lagophylla,  Common hareleaf
native
Annual herb

ASTERACEAE

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

Lastarriaea coriacea    Leather spineflower
native
Annual herb

POLYGONACEAE

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

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

ASTERACEAE

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

Lasthenia debilis    Greene's goldfields
native
Annual herb

ASTERACEAE

Lasthenia debilis
2019 Mary Merriman
Lasthenia debilis
2019 Susan McDougall
Lasthenia debilis
2019 Susan McDougall

Lasthenia ferrisiae    Alkali goldfields,  Ferris' goldfields
rare native
Annual herb

ASTERACEAE

Lasthenia ferrisiae
2022 Mary Merriman
Lasthenia ferrisiae
2022 Denise Defreese
Lasthenia ferrisiae
2019 Adam Chasey

Lasthenia fremontii    Fremont's goldfields,  Vernal pool goldfields
native
Annual, Perennial herb

ASTERACEAE

Lasthenia fremontii
2023 G Froelich
Lasthenia fremontii
2022 Steve Matson
Lasthenia fremontii
2022 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

Layia glandulosa    White layia,  White tidy tips,  Whitedaisy tidytips
native
Annual herb

ASTERACEAE

Layia glandulosa
2016 James Gonsman
Layia glandulosa
2017 Alison Sheehey
Layia glandulosa
2009 Keir Morse

Layia heterotricha    Pale yellow layia,  Paleyellow tidytips
rare native
Annual herb

ASTERACEAE

Layia heterotricha
2021 Mike Russler
Layia heterotricha
2021 Mike Russler
Layia heterotricha
2021 Mike Russler

Layia munzii    Munz's tidy tips,  Munz's tidytips
rare native
Annual herb

ASTERACEAE

Layia munzii
2006 Steve Matson
Layia munzii
2015 Craig Fiehler
Layia munzii
2006 Steve Matson

Layia pentachaeta ssp. albida    Sierra tidytips,  White sierra tidy tips
native
Annual herb

ASTERACEAE

Layia pentachaeta ssp. albida
2019 Mary Merriman
Layia pentachaeta ssp. albida
2018 Richard Spjut
Layia pentachaeta ssp. albida
2011 Richard Spjut

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

Lembertia congdonii    San joaquin woollythreads
rare native
Annual herb

ASTERACEAE

Lembertia congdonii
2022 Mike Russler
Lembertia congdonii
2020 David Greenberger
Lembertia congdonii
2010 Neal Kramer

Lepidium dictyotum    Alkali pepperweed,  Net pepper grass
native
Annual herb

BRASSICACEAE

Lepidium dictyotum
2022 Dianne Lake
Lepidium dictyotum
2012 Jean Pawek
Lepidium dictyotum
2022 Dianne Lake

Lepidium dictyotum var. acutidens    Net pepper grass
native
Annual, Perennial herb

BRASSICACEAE

Lepidium dictyotum var. acutidens
2017 Steve Matson
Lepidium dictyotum var. acutidens
2017 Steve Matson
Lepidium dictyotum var. acutidens
2022 Catherine Chang

Lepidium jaredii    Jared's pepper grass,  Jared's pepperweed
native
Annual herb

BRASSICACEAE

Lepidium jaredii
2020 Matt Berger
Lepidium jaredii
2020 Matt Berger
Lepidium jaredii
2020 Matt Berger

Lepidium lasiocarpum var. lasiocarpum    Shaggyfruit pepperweed
native
Annual herb

BRASSICACEAE

Lepidium lasiocarpum var. lasiocarpum
2022 Steve Matson
Lepidium lasiocarpum var. lasiocarpum
2022 Steve Matson
Lepidium lasiocarpum var. lasiocarpum
2015 Steve Matson

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

BRASSICACEAE

Lepidium nitidum
2020 Linda Pardy
Lepidium nitidum
2019 Gary McDonald
Lepidium nitidum
2016 Steve Matson

Lepidospartum squamatum    California broomsage,  California broomshrub,  Scale broom
native
Shrub

ASTERACEAE

Lepidospartum squamatum
2021 Mike Russler
Lepidospartum squamatum
2021 David Wolfson
Lepidospartum squamatum
2021 Mike Russler

Lessingia filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Lessingia filaginifolia
2022 Mike Russler
Lessingia filaginifolia
2018 Ron Vanderhoff
Lessingia filaginifolia
2021 Mike Russler

Lessingia glandulifera    Valley lessingia,  Valley vinegar weed
native
Annual herb

ASTERACEAE

Lessingia glandulifera
2022 Steve Matson
Lessingia glandulifera
2022 Steve Matson
Lessingia glandulifera
2021 Mike Russler

Lessingia lemmonii var. lemmonii    Sticky lessingia,  Valley lessingia
native
Annual herb

ASTERACEAE

Lessingia lemmonii var. lemmonii
2021 R.A. Chasey
Lessingia lemmonii var. lemmonii
2015 Steve Matson
Lessingia lemmonii var. lemmonii
2021 Mike Russler

Lessingia tenuis    Spring lessingia
rare native
Annual herb

ASTERACEAE

Lessingia tenuis
2022 Mike Russler
Lessingia tenuis
2022 Mike Russler
Lessingia tenuis
2022 Mike Russler

Leymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Leymus triticoides
2018 Ron Vanderhoff
Leymus triticoides
2021 Ron Vanderhoff
Leymus triticoides
2018 Rachelle Gray

native
Perennial herb

POLEMONIACEAE

Linanthus aureus ssp. decorus
2016 James Gonsman
Linanthus aureus ssp. decorus
2004 Christopher L. Christie
Linanthus aureus ssp. decorus
2017 John Doyen

Linanthus bigelovii    Bigelow's linanthus
native
Annual herb

POLEMONIACEAE

Linanthus bigelovii
2022 Ryan O'Dell
Linanthus bigelovii
2022 Ryan O'Dell
Linanthus bigelovii
2011 Jean Pawek

Linanthus dichotomus    Evening snow,  Eveningsnow
native
Annual herb

POLEMONIACEAE

Linanthus dichotomus
2019 Jacob Smith
Linanthus dichotomus
2016 Ray Gill
Linanthus dichotomus
2019 Jacob Smith

Linanthus liniflorus    Narrowflower flaxflower
native
Annual herb

POLEMONIACEAE

Linanthus liniflorus
2017 Aaron Echols
Linanthus liniflorus
2022 Charles Russell
Linanthus liniflorus
2009 Genevieve K. Walden

Linanthus parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Linanthus parviflorus
2022 Irene Rosen
Linanthus parviflorus
2021 Ron Vanderhoff
Linanthus parviflorus
2019 Ron Vanderhoff

Loeseliastrum schottii    Schott gilia,  Schott's calico
native
Annual herb

POLEMONIACEAE

Loeseliastrum schottii
2020 David Greenberger
Loeseliastrum schottii
2006 Steve Matson
Loeseliastrum schottii
2008 Neal Kramer

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

APIACEAE

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

Lomatium mohavense    Mohave wild parsely,  Mojave desertparsley,  Mojave lomatium
native
Perennial herb

APIACEAE

Lomatium mohavense
2014 Steve Matson
Lomatium mohavense
2023 Matt Berger
Lomatium mohavense
2008 Steve Matson

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

APIACEAE

Lomatium utriculatum
2006 Steve Matson
Lomatium utriculatum
2019 Eliezer Margolis
Lomatium utriculatum
2015 James Gonsman

Lonicera subspicata    Southern honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera subspicata
2022 David Strauch
Lonicera subspicata
2017 Diane Etchison
Lonicera subspicata
2018 David Greenberger

Lotus humistratus    Short podded lotus
native
Annual herb

FABACEAE

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

Lotus salsuginosus    Coastal lotus
native
Annual herb

FABACEAE

Lotus salsuginosus
2019 Diane Etchison
Lotus salsuginosus
2017 John Doyen
Lotus salsuginosus
2019 Mary Conway

Lotus scoparius    Deerweed
native
Perennial herb

FABACEAE

Lotus scoparius
2021 Ron Vanderhoff
Lotus scoparius
2019 Diane Etchison
Lotus scoparius
2020 Bryant Baker

Lotus strigosus    Strigose lotus
native
Annual herb

FABACEAE

Lotus strigosus
2019 Gary McDonald
Lotus strigosus
2019 Diane Etchison
Lotus strigosus
2019 Gary McDonald

Lotus wrangelianus    Chilean trefoil
native
Annual herb

FABACEAE

Lotus wrangelianus
2021 Jamie Spielmann
Lotus wrangelianus
2018 Gary McDonald
Lotus wrangelianus
2022 Richard Sullivan

Lupinus albifrons    Silver bush lupine,  Silver lupine
native
Shrub

FABACEAE

Lupinus albifrons
2022 Mike Russler
Lupinus albifrons
2022 Steve Conger
Lupinus albifrons
2022 Ron Vanderhoff

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

FABACEAE

Lupinus bicolor
2022 Mike Russler
Lupinus bicolor
2022 Mike Russler
Lupinus bicolor
2019 Gary McDonald

native
Annual herb

FABACEAE

Lupinus microcarpus var. horizontalis
2020 David Greenberger
Lupinus microcarpus var. horizontalis
2019 Diane Etchison
Lupinus microcarpus var. horizontalis
2019 Diane Etchison

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

FABACEAE

Lupinus microcarpus var. microcarpus
2016 Michael Mitchell
Lupinus microcarpus var. microcarpus
2014 Michael Mitchell
Lupinus microcarpus var. microcarpus
2015 Michael Mitchell

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
2023 R.A. Chasey
Lupinus nanus
2019 Mary Conway
Lupinus nanus
2016 Steve Matson

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

FABACEAE

Lupinus succulentus
2018 Stacie Wolny
Lupinus succulentus
2018 Stacie Wolny
Lupinus succulentus
2018 Stacie Wolny

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

SOLANACEAE

Lycium andersonii
2020 David Greenberger
Lycium andersonii
2010 Steve Matson
Lycium andersonii
2019 Richard Spjut

Maclura pomifera    Osage orange
non-native
Tree, Shrub

MORACEAE

Maclura pomifera
2016 Steve Matson
Maclura pomifera
2016 Steve Matson
Maclura pomifera
2016 Steve Matson

Madia elegans    Common madia
native
Annual herb

ASTERACEAE

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

Malacothrix californica    California dandelion,  Desert dandelion
native
Annual herb

ASTERACEAE

Malacothrix californica
2023 David Wolfson
Malacothrix californica
2023 David Wolfson
Malacothrix californica
Geoff Burleigh

Malacothrix coulteri    Snake's head
native
Annual herb

ASTERACEAE

Malacothrix coulteri
2020 David Greenberger
Malacothrix coulteri
2020 Matt Berger
Malacothrix coulteri
2020 David Greenberger

Malacothrix glabrata    Desert dandelion,  Smooth desertdandelion
native
Annual herb

ASTERACEAE

Malacothrix glabrata
2019 Diane Etchison
Malacothrix glabrata
2022 Steve Matson
Malacothrix glabrata
2017 Leah Gardner

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

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

Malvella leprosa    Alkali mallow
native
Perennial herb

MALVACEAE

Malvella leprosa
2020 Ken Hickman
Malvella leprosa
2014 Debra L. Cook
Malvella leprosa
2007 Lynn Watson

Marah fabaceus    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah fabaceus
2018 Karen Scheuermann
Marah fabaceus
2021 Cyril Guyot
Marah fabaceus
2018 Gary McDonald

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

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

FABACEAE

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

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

POACEAE

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

Mentha arvensis    American wild mint,  Field mint,  Marsh mint
native
Perennial herb

LAMIACEAE

Mentha arvensis
2003 Steve Matson
Mentha arvensis
2003 Steve Matson
Mentha arvensis
2014 Steve Matson

Mentzelia affinis    Yellow blazing star,  Yellow comet,  Yellowcomet
native
Annual herb

LOASACEAE

Mentzelia affinis
2022 Mike Russler
Mentzelia affinis
2022 Mike Russler
Mentzelia affinis
2020 David Greenberger

Mentzelia albicaulis    Small flowered blazing star,  White stemmed blazing star,  White stemmed stickleaf
native
Annual herb

LOASACEAE

Mentzelia albicaulis
2022 Mike Russler
Mentzelia albicaulis
2022 Mike Russler
Mentzelia albicaulis
2019 Diane Etchison

Mentzelia dispersa    Bushy blazingstar,  Nada stickleaf,  Scattered blazing star
native
Annual herb

LOASACEAE

Mentzelia dispersa
2022 Bob Sweatt
Mentzelia dispersa
2022 Bob Sweatt
Mentzelia dispersa
2022 Bob Sweatt

Mentzelia gracilenta    Blazing star,  Grass blazingstar,  Slender blazing star
native
Annual herb

LOASACEAE

Mentzelia gracilenta
2022 Mary Conway
Mentzelia gracilenta
2019 Matt Berger
Mentzelia gracilenta
2019 David Greenberger

Mentzelia pectinata    San joaquin blazing star,  San joaquin blazingstar
native
Annual herb

LOASACEAE

Mentzelia pectinata
2021 Mike Russler
Mentzelia pectinata
2021 Mike Russler
Mentzelia pectinata
2021 Mike Russler

Microseris campestris    San joaquin microseris,  San joaquin silverpuffs
native
Annual herb

ASTERACEAE

Microseris campestris
2022 Cynthia Powell
Microseris campestris
2022 Cynthia Powell
Microseris campestris
2022 Dianne Lake

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

ASTERACEAE

Microseris douglasii
2022 Debra Cook
Microseris douglasii
2022 Steve Laymon
Microseris douglasii
2021 Robert Steers

Microseris elegans    Elegant silverpuffs
native
Annual herb

ASTERACEAE

Microseris elegans
2011 Zoya Akulova
Microseris elegans
null
Microseris elegans
2004 Laura Ann Eliassen

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

PHRYMACEAE

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

Mirabilis californica    California four o'clock
native
Perennial herb

NYCTAGINACEAE

Mirabilis californica
2021 Ron Vanderhoff
Mirabilis californica
2018 Ron Vanderhoff
Mirabilis californica
2010 Thomas Stoughton

Mirabilis multiflora    Colorado four o'clock,  Giant four o'clock
native
Perennial herb

NYCTAGINACEAE

Mirabilis multiflora
2013 Steve Matson
Mirabilis multiflora
2021 Mike Russler
Mirabilis multiflora
2021 Mike Russler

Monardella breweri    Brewer's monardella
native
Annual herb

LAMIACEAE

Monardella breweri
2012 Terrence Gosliner
Monardella breweri
2017 Diane Etchison
Monardella breweri
2020 Bob Sweatt

Monolepis nuttalliana    Nuttall's poverty weed,  Nuttall's povertyweed
native
Annual herb

CHENOPODIACEAE

Monolepis nuttalliana
2020 Matt Berger
Monolepis nuttalliana
2020 Matt Berger
Monolepis nuttalliana
2017 Michelle Tollett

Monolopia lanceolata    Common monolopia
native
Annual herb

ASTERACEAE

Monolopia lanceolata
2016 Steve Matson
Monolopia lanceolata
2016 Steve Matson
Monolopia lanceolata
2016 Steve Matson

Monolopia stricta    Crum's monolopia
native
Annual herb

ASTERACEAE

Monolopia stricta
2020 Matt Berger
Monolopia stricta
2020 David Greenberger
Monolopia stricta
2016 Steve Matson

Mucronea perfoliata    Perfoliate spineflower
native
Annual herb

POLYGONACEAE

Mucronea perfoliata
2020 Matt Berger
Mucronea perfoliata
2019 Matt Berger
Mucronea perfoliata
2022 Ryan O'Dell

Muilla maritima    Common muilla,  Sea muilla
native
Perennial herb

THEMIDACEAE

Muilla maritima
2017 Steve Matson
Muilla maritima
2017 Ron Vanderhoff
Muilla maritima
2017 Steve Matson

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

RANUNCULACEAE

Myosurus minimus
2022 Dianne Lake
Myosurus minimus
2023 Donald Burk
Myosurus minimus
2022 Catherine Chang

Nama californicum    California Fiddleleaf
native
Annual herb

NAMACEAE

Nama californicum
2020 Matt Berger
Nama californicum
2008 Steve Matson
Nama californicum
2019 Matt Berger

Nassella cernua    Nodding needle grass
native
Perennial grass

POACEAE

Nassella cernua
2018 Liz Block
Nassella cernua
2022 Ron Vanderhoff
Nassella cernua
2022 Dianne Lake

Nassella pulchra    Purple needle grass
native
Perennial grass

POACEAE

Nassella pulchra
2019 Michelle Karle
Nassella pulchra
2019 Ron Vanderhoff
Nassella pulchra
2018 Gary McDonald

Navarretia atractyloides    Holly leaf navarretia,  Hollyleaf pincushionplant
native
Annual herb

POLEMONIACEAE

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

Navarretia jaredii    Paso robles navarretia
native
Annual herb

POLEMONIACEAE

Navarretia jaredii
2022 Mike Russler
Navarretia jaredii
2022 Mike Russler
Navarretia jaredii
2019 David Greenberger

Nemophila menziesii    Baby blue eyes
native
Annual herb

HYDROPHYLLACEAE

Nemophila menziesii
2019 Matt Berger
Nemophila menziesii
2019 Diane Etchison
Nemophila menziesii
2019 Ron Vanderhoff

Nicotiana glauca    Tree tobacco
invasive non-native
Tree, Shrub

SOLANACEAE

Nicotiana glauca
2019 Jean B Henney
Nicotiana glauca
2022 Mark Bowler
Nicotiana glauca
2019 Nicole Leatherman

Nicotiana quadrivalvis    Indian tobacco
native
Annual herb

SOLANACEAE

Nicotiana quadrivalvis
2019 Michael Mitchell
Nicotiana quadrivalvis
2019 Michael Mitchell
Nicotiana quadrivalvis
2016 Lesley Hunt

Oenothera deltoides    Birdcage evening primrose,  Desert lantern,  Dune primrose
native
Annual herb

ONAGRACEAE

Oenothera deltoides
2011 Gordon Neish
Oenothera deltoides
2022 Ryan O'Dell
Oenothera deltoides
2022 Emily Sluiman

Parietaria hespera    Pelitory,  Pellitory,  Rillita pellitory
native
Annual herb

URTICACEAE

Parietaria hespera
2022 Matt Berger
Parietaria hespera
2019 Ron Vanderhoff
Parietaria hespera
2021 Ron Vanderhoff

Parishella californica    Mojave dwarf
native
Annual herb

CAMPANULACEAE

Parishella californica
2019 Manzanita Dictionary
Parishella californica
2019 Aaron Schusteff
Parishella californica
2019 Aaron Schusteff

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

BORAGINACEAE

Pectocarya penicillata
2017 Ron Vanderhoff
Pectocarya penicillata
2017 Ron Vanderhoff
Pectocarya penicillata
2022 Steve Matson

Pectocarya setosa    Moth combseed,  Stiff stemmed comb bur
native
Annual herb

BORAGINACEAE

Pectocarya setosa
2014 Steve Matson
Pectocarya setosa
2020 Matt Berger
Pectocarya setosa
2014 Steve Matson

Pellaea mucronata    Bird's foot fern,  Birdfoot cliffbrake,  Birdfoot fern
native
Fern

PTERIDACEAE

Pellaea mucronata
2012 Ron Vanderhoff
Pellaea mucronata
2022 Helen Hancock
Pellaea mucronata
2023 Julia Markey

Penstemon centranthifolius    Scarlet bugler
native
Perennial herb

PLANTAGINACEAE

Penstemon centranthifolius
2019 Ron Vanderhoff
Penstemon centranthifolius
2017 Diane Etchison
Penstemon centranthifolius
2021 Mike Russler

Pentachaeta fragilis    Fragile pygmy daisy,  Fragile pygmydaisy
rare native
Annual herb

ASTERACEAE

Pentachaeta fragilis
2020 Matt Berger
Pentachaeta fragilis
2017 Neal Kramer
Pentachaeta fragilis
2017 Neal Kramer

Perideridia pringlei    Adobe yampah
rare native
Perennial herb

APIACEAE

Perideridia pringlei
2019 Matt Berger
Perideridia pringlei
2019 Richard Spjut
Perideridia pringlei
2017 Richard Spjut

Phacelia affinis    Limestone phacelia,  Purple bell phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia affinis
2005 James M. Andre
Phacelia affinis
2015 Keir Morse
Phacelia affinis
2015 Keir Morse

Phacelia ciliata    Great valley phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia ciliata
2022 Ron Vanderhoff
Phacelia ciliata
2022 Mike Russler
Phacelia ciliata
2010 Neal Kramer

Phacelia cryptantha    Hiddenflower phacelia,  Limestone phacelia,  Small flowered phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia cryptantha
2015 Steve Matson
Phacelia cryptantha
2020 David Greenberger
Phacelia cryptantha
2015 Steve Matson

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

HYDROPHYLLACEAE

Phacelia distans
2023 Richard Spjut
Phacelia distans
2023 Richard Spjut
Phacelia distans
2022 Mike Russler

Phacelia douglasii    Douglas' phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia douglasii
2019 Michael Mitchell
Phacelia douglasii
2014 Michael Mitchell
Phacelia douglasii
2019 Michael Mitchell

Phacelia egena    Kaweah river phacelia,  Rock phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia egena
2023 Alaine Arslan
Phacelia egena
2016 Steve Matson
Phacelia egena
2016 Steve Matson

Phacelia fremontii    Fremont's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia fremontii
2022 Steve Matson
Phacelia fremontii
2022 Mike Russler
Phacelia fremontii
2014 Steve Conger

Phacelia tanacetifolia    Lacy phacelia,  Tansy leafed phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia tanacetifolia
2022 Mike Russler
Phacelia tanacetifolia
2022 Mike Russler
Phacelia tanacetifolia
2014 Steve Matson

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

Phlox gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Phlox gracilis
2021 Mike Russler
Phlox gracilis
2003 Steve Matson
Phlox gracilis
2003 Steve Matson

Pholistoma membranaceum    White fiesta flower,  White fiestaflower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma membranaceum
2023 David Wolfson
Pholistoma membranaceum
2019 Gary McDonald
Pholistoma membranaceum
2022 Mike Russler

Phoradendron densum    Bollean mistletoe
native
Shrub (parasitic)

VISCACEAE

Phoradendron densum
2014 Steve Matson
Phoradendron densum
2019 Aaron Echols
Phoradendron densum
2014 Steve Matson

Phoradendron juniperinum    Juniper mistletoe
native
Shrub (parasitic)

VISCACEAE

Phoradendron juniperinum
2016 Keir Morse
Phoradendron juniperinum
2020 R.A. Chasey
Phoradendron juniperinum
2004 James M. Andre

Pilularia americana    American pillwort
native
Fern

MARSILEACEAE

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

Pinus monophylla    Nut pine,  Oneneedle pinyon pine,  Single leaf pinyon pine
native
Tree

PINACEAE

Pinus monophylla
2019 Annie Walker
Pinus monophylla
2019 Matt Berger
Pinus monophylla
2018 Diane Etchison

Plagiobothrys acanthocarpus    Adobe allocarya,  Adobe popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys acanthocarpus
2017 Steve Matson
Plagiobothrys acanthocarpus
2017 Steve Matson
Plagiobothrys acanthocarpus
2022 Cynthia Powell

Plagiobothrys arizonicus    Arizona popcorn flower,  Arizona popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys arizonicus
2020 Steve Matson
Plagiobothrys arizonicus
2019 Richard Spjut
Plagiobothrys arizonicus
2020 Steve Matson

Plagiobothrys canescens    Grey popcorn flower,  Valley popcorn flower,  Valley popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys canescens
2016 Steve Matson
Plagiobothrys canescens
2016 Steve Matson
Plagiobothrys canescens
2016 Steve Matson

Plagiobothrys leptocladus    Alkali plagiobothrys,  Finebranched popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys leptocladus
2009 Doug Wirtz
Plagiobothrys leptocladus
2009 Anna Bennett
Plagiobothrys leptocladus
2004 Carol W. Witham

Plagiobothrys nothofulvus    Rusty haired popcorn flower,  Rusty popcorn flower,  Rusty popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys nothofulvus
2019 Ron Vanderhoff
Plagiobothrys nothofulvus
2019 Ron Vanderhoff
Plagiobothrys nothofulvus
2013 Jean Pawek

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
2021 Charles Russell
Plantago erecta
2008 Margo Bors
Plantago erecta
2022 Mike Russler

Plantago ovata    Desert indianwheat,  Desert plantain,  Woolly plantain
native
Annual herb

PLANTAGINACEAE

Plantago ovata
2019 Matt Berger
Plantago ovata
2019 Diane Etchison
Plantago ovata
2020 Bonnie Nickel

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
2019 Diane Etchison
Platystemon californicus
2022 John L. Thompson
Platystemon californicus
2020 Mitchell Coleman

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 bulbosa    Bulbous blue grass,  Bulbous bluegrass
non-native
Perennial grass

POACEAE

Poa bulbosa
2020 Julie A. Kierstead
Poa bulbosa
2019 Stephany Dery
Poa bulbosa
2020 Thomas Reyes

Poa 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

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

POACEAE

Polypogon monspeliensis
2020 Edith Allen
Polypogon monspeliensis
2021 Ron Vanderhoff
Polypogon monspeliensis
2014 Steve Matson

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

Prosopis glandulosa var. torreyana    Mesquite,  Western honey mesquite
native
Tree, Shrub

FABACEAE

Prosopis glandulosa var. torreyana
2019 Susan McDougall
Prosopis glandulosa var. torreyana
2014 Keir Morse
Prosopis glandulosa var. torreyana
2021 Ron Vanderhoff

Prunus fasciculata    Desert almond,  Desert range almond
native
Shrub

ROSACEAE

Prunus fasciculata
2015 Steve Matson
Prunus fasciculata
2019 Diane Etchison
Prunus fasciculata
2015 Steve Matson

Psilocarphus brevissimus    Short woollyheads,  Woolly marbles
native
Annual herb

ASTERACEAE

Psilocarphus brevissimus
2022 Bob Sweatt
Psilocarphus brevissimus
2019 Elliot Gunnison
Psilocarphus brevissimus
2022 Bob Sweatt

Psilocarphus sp.    Small Tree-Mallow


Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

Pterostegia drymarioides
2020 Dick Rawson
Pterostegia drymarioides
2018 Ron Vanderhoff
Pterostegia drymarioides
2015 Diane Etchison

Quercus douglasii    Blue oak
native
Tree

FAGACEAE

Quercus douglasii
2019 Susan McDougall
Quercus douglasii
2018 Gary McDonald
Quercus douglasii
2020 Charles Russell

Quercus turbinella    Grey oak,  Shrub live oak,  Sonoran scrub oak
rare native
Shrub

FAGACEAE

Quercus turbinella
2020 David Greenberger
Quercus turbinella
2016 James Gonsman
Quercus turbinella
2013 Jean Pawek

Ribes quercetorum    Foothill gooseberry,  Oak gooseberry,  Rock gooseberry
native
Shrub

GROSSULARIACEAE

Ribes quercetorum
2020 Susan McDougall
Ribes quercetorum
2016 Steve Matson
Ribes quercetorum
2020 Susan McDougall

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
2022 David Strauch

Rumex hymenosepalus    Canaigre dock,  Wild rhubarb
native
Perennial herb

POLYGONACEAE

Rumex hymenosepalus
2019 Dee Shea Himes
Rumex hymenosepalus
2021 Ron Vanderhoff
Rumex hymenosepalus
2008 Steve Matson

Salix babylonica    Weeping willow
non-native
Tree

SALICACEAE

Salix babylonica
2018 Ron Vanderhoff
Salix babylonica
2018 Ron Vanderhoff
Salix babylonica
2018 Ron Vanderhoff

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

Salix laevigata
2017 Steve Matson
Salix laevigata
2019 Barbara Brydolf
Salix laevigata
2022 Mark Gary

Salsola tragus    Prickly russian thistle,  Russianthistle,  Tumbleweed
invasive non-native
Annual herb

CHENOPODIACEAE

Salsola tragus
2017 Ron Vanderhoff
Salsola tragus
2021 Mike Russler
Salsola tragus
2016 Steven Thorsted

Salvia carduacea    Thistle sage
native
Annual herb

LAMIACEAE

Salvia carduacea
2020 David Greenberger
Salvia carduacea
2016 Michael Mitchell
Salvia carduacea
2016 Steve Matson

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

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

Salvia leucophylla    San luis purple sage
native
Shrub

LAMIACEAE

Salvia leucophylla
2015 Steven M Norris
Salvia leucophylla
2016 John Doyen
Salvia leucophylla
2019 Janith Johnson

Salvia mellifera    Black sage
native
Shrub

LAMIACEAE

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

Sambucus mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

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

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

ANACARDIACEAE

Schinus molle
2021 stephen rosenthal
Schinus molle
2017 William McCarey
Schinus molle
2000 Joe DiTomaso

Schismus arabicus    Arabian schismus,  Mediterranean grass
invasive non-native
Annual grass

POACEAE

Schismus arabicus
2020 Ron Vanderhoff
Schismus arabicus
2017 James Bailey
Schismus arabicus
2022 Katherine Stratton

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

POACEAE

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

Scirpus robustus    Sturdy bullrush
native
Perennial grasslike herb

CYPERACEAE

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

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

ASTERACEAE

Senecio flaccidus var. douglasii
2019 Ron Vanderhoff
Senecio flaccidus var. douglasii
2021 Helen Hancock
Senecio flaccidus var. douglasii
2019 Ron Vanderhoff

Senecio vulgaris    Common groundsel,  Old man in the spring,  Old man of spring
non-native
Annual herb

ASTERACEAE

Senecio vulgaris
2017 Barbara Boethling
Senecio vulgaris
2019 Ron Vanderhoff
Senecio vulgaris
2021 Toni Corelli

Sinapis arvensis    Charlock mustard
invasive non-native
Annual herb

BRASSICACEAE

Sinapis arvensis
2020 Randy Huey
Sinapis arvensis
2021 Randy Huey
Sinapis arvensis
2022 Mike Russler

Sisymbrium altissimum    Tall tumblemustard,  Tumble mustard,  Tumbling mustard
non-native
Annual herb

BRASSICACEAE

Sisymbrium altissimum
2019 Ron Vanderhoff
Sisymbrium altissimum
2020 Ron Vanderhoff
Sisymbrium altissimum
2022 Michelle Peruzzi

Sisymbrium irio    London rocket
invasive non-native
Annual herb

BRASSICACEAE

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

Solanum umbelliferum    Blue witch nightshade,  Bluewitch nightshade
native
Shrub

SOLANACEAE

Solanum umbelliferum
2022 Mike Russler
Solanum umbelliferum
2014 Steve Matson
Solanum umbelliferum
2014 Steve Matson

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
2008 Gary McDonald

Sorghum bicolor    Sorghum
non-native
Annual grass

POACEAE

Sorghum bicolor
2014 Ron Vanderhoff
Sorghum bicolor
2017 Fred Melgert / Carla Hoegen
Sorghum bicolor
2016 Barbara Boethling

non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis ssp. arvensis
2019 Diane Etchison
Spergula arvensis ssp. arvensis
2020 Mary Conway
Spergula arvensis ssp. arvensis
2022 Cynthia Powell

Spergularia atrosperma    Blackseed sandspurry,  Sand spurrey
native
Annual herb

CARYOPHYLLACEAE

Spergularia atrosperma
2019 Mary Merriman
Spergularia atrosperma
1995 Saint Mary's College of California
Spergularia atrosperma
1995 Saint Mary's College of California

Spergularia marina    Salt marsh sand spurry
native
Annual herb

CARYOPHYLLACEAE

Spergularia marina
2017 James Bailey
Spergularia marina
2021 R.A. Chasey
Spergularia marina
2021 Cynthia Powell

Stanleya pinnata    Desert princesplume,  Prince's plume
native
Perennial herb, Shrub

BRASSICACEAE

Stanleya pinnata
2020 Bryant Baker
Stanleya pinnata
2022 Steve Matson
Stanleya pinnata
2022 Steve Matson

Stebbinsoseris heterocarpa    Grassland stebbinsoseris
native
Annual herb

ASTERACEAE

Stebbinsoseris heterocarpa
2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
2017 Diane Etchison

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

CARYOPHYLLACEAE

Stellaria nitens
2020 Ken Hickman
Stellaria nitens
2022 Catherine Chang
Stellaria nitens
2017 David popp

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

ASTERACEAE

Stephanomeria exigua ssp. coronaria
2014 Bill Thiessen
Stephanomeria exigua ssp. coronaria
2013 Robert Sikora
Stephanomeria exigua ssp. coronaria
2015 Zoya Akulova

Stephanomeria pauciflora    Brownplume wirelettuce,  Desert straw,  Wire lettuce
native
Perennial herb

ASTERACEAE

Stephanomeria pauciflora
2015 Steve Matson
Stephanomeria pauciflora
2015 Steve Matson
Stephanomeria pauciflora
2015 Steve Matson

Stylomecon heterophylla    Wind poppy
native
Annual herb

PAPAVERACEAE

Stylomecon heterophylla
2017 Gary McDonald
Stylomecon heterophylla
2021 Mike Russler
Stylomecon heterophylla
2020 Joe Engelbrecht

Suaeda moquinii    Bush seepweed
native
Perennial herb

CHENOPODIACEAE

Suaeda moquinii
2021 Mike Russler
Suaeda moquinii
2021 Ron Vanderhoff
Suaeda moquinii
2016 Steve Matson

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

TAMARICACEAE

Tamarix ramosissima
2020 Ron Vanderhoff
Tamarix ramosissima
2017 Barbara Boethling
Tamarix ramosissima
2000 Joe DiTomaso

Thysanocarpus curvipes    Fringe pod,  Fringed pod,  Hairy lacepod
native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes
2020 Ron Vanderhoff
Thysanocarpus curvipes
2001 Jeff Abbas
Thysanocarpus curvipes
2018 Julie Kierstead Nelson

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

Trichostema lanceolatum    Vinegarweed
native
Annual herb

LAMIACEAE

Trichostema lanceolatum
2018 Ron Vanderhoff
Trichostema lanceolatum
2016 Nathan Mudry
Trichostema lanceolatum
2014 Diane Etchison

Trichostema ovatum    San joaquin bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema ovatum
2020 John Game
Trichostema ovatum
2021 Mike Russler
Trichostema ovatum
2021 Mike Russler

Trifolium albopurpureum    Indian clover,  Rancheria clover
native
Annual herb

FABACEAE

Trifolium albopurpureum
2021 Mike Russler
Trifolium albopurpureum
2011 Jorg & Mimi Fleige
Trifolium albopurpureum
2013 Zoya Akulova

native
Annual herb

FABACEAE

Trifolium albopurpureum var. olivaceum
2011 Jennifer Buck
Trifolium albopurpureum var. olivaceum
2015 Aaron Schusteff
Trifolium albopurpureum var. olivaceum
2015 Aaron Schusteff

Trifolium depauperatum    Cowbag clover,  Dwarf sack clover,  Pale sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum
2022 Ken-ichi Ueda
Trifolium depauperatum
2017 Diane Etchison
Trifolium depauperatum
2017 Art Clark

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

Triticum sp.    Small Tree-Mallow


Tropidocarpum gracile    Dobie pod,  Slender keel fruit,  Slender tropidocarpum
native
Annual herb

BRASSICACEAE

Tropidocarpum gracile
2015 Michael Mitchell
Tropidocarpum gracile
2019 Gary McDonald
Tropidocarpum gracile
2022 R.A. Chasey

Typha domingensis    Narrowleaf cattail,  Southern cattail
native
Perennial herb

TYPHACEAE

Typha domingensis
2020 Ron Vanderhoff
Typha domingensis
2022 Ron Vanderhoff
Typha domingensis
2020 Ellen Gartside

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

VERBENACEAE

Verbena lasiostachys
2020 Greg Froelich
Verbena lasiostachys
2018 Gary McDonald
Verbena lasiostachys
2008 Keir Morse

Vulpia bromoides    Brome fescue
non-native
Annual grass

POACEAE

Vulpia bromoides
2022 Diana Wahl
Vulpia bromoides
2021 Toni Corelli
Vulpia bromoides
2021 David popp

native
Annual grass

POACEAE

Vulpia microstachys var. pauciflora
2022 Aaron Sunshine
Vulpia microstachys var. pauciflora
2011 Steve Matson
Vulpia microstachys var. pauciflora
2011 Steve Matson

Vulpia myuros var. hirsuta    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Vulpia myuros var. hirsuta
2021 Aaron Echols
Vulpia myuros var. hirsuta
2021 Ron Vanderhoff
Vulpia myuros var. hirsuta
2022 John Rawlings

Yucca whipplei    Chaparral yucca
native
Shrub

AGAVACEAE

Yucca whipplei
Geoff Burleigh
Yucca whipplei
2023 Jordan Collins
Yucca whipplei
2020 Julia Markey