logo Calflora  Illustrated Plant List 
Reservoir Canyon and Bowden Ranch Open Spaces
San Luis Obispo County

David Keil  / CNPS-SLO  (2019-06-07)

Record Detail Nearby Surveys What Grows Here?
318 PLANTS
Acacia melanoxylon    Blackwood acacia
invasive non-native
Tree

FABACEAE

Acacia melanoxylon
2022 Julian Geoghegan
Acacia melanoxylon
2019 Julian Geoghegan
Acacia melanoxylon
2019 Devon Jackson

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

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

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

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

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

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

Acmispon strigosus    Strigose lotus
native
Annual herb

FABACEAE

Acmispon strigosus
2016 Steve Matson
Acmispon strigosus
2009 Steve Matson
Acmispon strigosus
2016 Steve Matson

Acmispon wrangelianus    Wrangel lotus
native
Annual herb

FABACEAE

Acmispon wrangelianus
2016 Steve Matson
Acmispon wrangelianus
2016 Steve Matson
Acmispon wrangelianus
2016 Steve Matson

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

BORAGINACEAE

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

native
Tree, Shrub

ROSACEAE

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

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

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

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

ASTERACEAE

Ageratina adenophora
2019 Ron Vanderhoff
Ageratina adenophora
2017 Keir Morse
Ageratina adenophora
2021 Heather Brady DeQuincy

Agoseris grandiflora var. grandiflora    Giant mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris grandiflora var. grandiflora
2007 Gerald Carr
Agoseris grandiflora var. grandiflora
2007 Gerald Carr
Agoseris grandiflora var. grandiflora
2021 Emily Sluiman

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

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

ALLIACEAE

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

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

PLANTAGINACEAE

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

Aphyllon californicum ssp. jepsonii    Jepson's california broom rape
native
Perennial herb (parasitic)

OROBANCHACEAE

Aphyllon californicum ssp. jepsonii
2019 Ken Hickman
Aphyllon californicum ssp. jepsonii
2018 Brian and Eileen Keelan
Aphyllon californicum ssp. jepsonii
2019 Ken Hickman

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

APIACEAE

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

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

APIACEAE

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

Apocynum androsaemifolium    Bitter dogbane,  Spreading dogbane
native
Perennial herb

APOCYNACEAE

Apocynum androsaemifolium
2003 Steve Matson
Apocynum androsaemifolium
2003 Steve Matson
Apocynum androsaemifolium
2003 Steve Matson

Aquilegia eximia    Serpentine columbine,  Sticky columbine,  Van Houtte's columbine
native
Perennial herb

RANUNCULACEAE

Aquilegia eximia
2019 David Greenberger
Aquilegia eximia
2019 Ken Hickman
Aquilegia eximia
2021 Mike Russler

Aristida adscensionis    Six weeks three awn,  Sixweeks threeawn
native
Annual grass

POACEAE

Aristida adscensionis
2023 Keir Morse
Aristida adscensionis
2023 Keir Morse
Aristida adscensionis
2016 James Bailey

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

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 curtipes    Morro milkvetch,  San luis obispo milkvetch,  South coast milk vetch
native
Perennial herb

FABACEAE

Astragalus curtipes
2021 Joel A. Germond, Psy.D.
Astragalus curtipes
2020 David Greenberger
Astragalus curtipes
2020 David Greenberger

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

FABACEAE

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

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

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 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

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 crocea var. crocea    Common goldenstar
native
Perennial herb

THEMIDACEAE

Bloomeria crocea var. crocea
2019 Michael Mitchell
Bloomeria crocea var. crocea
2019 Ron Vanderhoff
Bloomeria crocea var. crocea
2017 Aaron Echols

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

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

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

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 pseudolaevipes    Coast range brome,  Southern chinook brome
native
Perennial grass

POACEAE

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

Bromus rubens    Red brome
invasive non-native
Annual grass

POACEAE

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

Calibrachoa parviflora    Wild petunia
native
Annual herb

SOLANACEAE

Calibrachoa parviflora
2017 Ron Vanderhoff
Calibrachoa parviflora
2020 Ron Vanderhoff
Calibrachoa parviflora
2022 Ron Vanderhoff

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

LILIACEAE

Calochortus albus
2019 David Greenberger
Calochortus albus
2019 Cynthia Powell
Calochortus albus
2009 Bob Case

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 obispoensis    San luis mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus obispoensis
2023 Morgan Stickrod
Calochortus obispoensis
2020 Meghan Lindt
Calochortus obispoensis
2018 Margarita Orlova

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

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

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

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

CYPERACEAE

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

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 spissa    San diego sedge
native
Perennial grasslike herb

CYPERACEAE

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

Castilleja affinis ssp. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

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

Castilleja densiflora ssp. 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

native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. ramulosus
2017 Robert Barnard
Ceanothus cuneatus var. ramulosus
2020 Robert Steers
Ceanothus cuneatus var. ramulosus
2023 Robert Steers

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

Cercocarpus betuloides var. betuloides    Birch leaf mountain mahogany
native
Tree, Shrub

ROSACEAE

Cercocarpus betuloides var. betuloides
2019 Ron Vanderhoff
Cercocarpus betuloides var. betuloides
2019 Ron Vanderhoff
Cercocarpus betuloides var. betuloides
2016 Ron Vanderhoff

Chlorogalum pomeridianum var. pomeridianum    Common soaproot,  Wavyleaf soap plant
native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum
2021 Sue Graue
Chlorogalum pomeridianum var. pomeridianum
2015 Sharon King & Randy Aeschliman
Chlorogalum pomeridianum var. pomeridianum
2018 Karen Scheuermann

Chorizanthe breweri    Brewer's spineflower,  San luis obispo spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe breweri
2020 David Greenberger
Chorizanthe breweri
2020 David Greenberger
Chorizanthe breweri
2023 Mike Russler

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

Cirsium fontinale var. obispoense    Chorro creek bog thistle
rare native
Perennial herb

ASTERACEAE

Cirsium fontinale var. obispoense
2017 Cindy Roessler
Cirsium fontinale var. obispoense
2015 David Wolfson
Cirsium fontinale var. obispoense
2020 David Greenberger

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 affinis    Chaparral clarkia,  Chaparral fairyfan
native
Annual herb

ONAGRACEAE

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

Clarkia bottae    Botta's clarkia,  Punch bowl godetia
native
Annual herb

ONAGRACEAE

Clarkia bottae
2023 Ron Vanderhoff
Clarkia bottae
2020 Steve Laymon
Clarkia bottae
2020 Steve Laymon

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

ONAGRACEAE

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

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

ONAGRACEAE

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

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

MONTIACEAE

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

Collinsia heterophylla    Purple chinese houses
native
Annual herb

PLANTAGINACEAE

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

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

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

OROBANCHACEAE

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

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
2022 Mike Russler
Corethrogyne filaginifolia
2018 Ron Vanderhoff
Corethrogyne filaginifolia
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 selloana    Uruguayan pampas grass
invasive non-native
Perennial grass

POACEAE

Cortaderia selloana
2022 Ken-ichi Ueda
Cortaderia selloana
2023 Randall English
Cortaderia selloana
2022 Ron Vanderhoff

Cotoneaster franchetii    Cotoneaster,  Francheti cotoneaster,  Orange cotoneaster
invasive non-native
Shrub

ROSACEAE

Cotoneaster franchetii
2021 Cynthia Powell
Cotoneaster franchetii
2021 Lenihan Mazur
Cotoneaster franchetii
2019 Lenihan Mazur

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

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

CISTACEAE

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

Croton 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 microstachys    Popcorn flower,  Tejon cryptantha
native
Annual herb

BORAGINACEAE

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

Cryptantha muricata var. muricata    Showy prickly-nut cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha muricata var. muricata
2023 Mike Russler
Cryptantha muricata var. muricata
2023 Mike Russler
Cryptantha muricata var. muricata
2023 Mike Russler

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

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

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

Delphinium parryi ssp. eastwoodiae    Eastwood's larkspur
rare native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. eastwoodiae
2023 Mike Russler
Delphinium parryi ssp. eastwoodiae
2023 Mike Russler
Delphinium parryi ssp. eastwoodiae
2023 Mike Russler

Dendromecon rigida    Bush poppy,  Tree poppy
native
Shrub

PAPAVERACEAE

Dendromecon rigida
2019 Eliezer Margolis
Dendromecon rigida
2018 Hunter Breck
Dendromecon rigida
2010 Suzanne L. Weakley

Deschampsia elongata    Hairgrass,  Slender hairgrass
native
Perennial grass

POACEAE

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

Diplacus aurantiacus ssp. aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Diplacus aurantiacus ssp. aurantiacus
2023 Bill Kress
Diplacus aurantiacus ssp. aurantiacus
2019 Stacie Wolny
Diplacus aurantiacus ssp. aurantiacus
2019 Gary McDonald

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

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

DRYOPTERIDACEAE

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

Dudleya abramsii ssp. murina    San Luis Obispo dudleya
rare native
Perennial herb

CRASSULACEAE

Dudleya abramsii ssp. murina
2023 Mike Russler
Dudleya abramsii ssp. murina
2023 Mike Russler
Dudleya abramsii ssp. murina
2023 Mike Russler

Dudleya lanceolata    Lanceleaf liveforever,  Southern california dudleya
native
Perennial herb

CRASSULACEAE

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

Dudleya pulverulenta    Chalk dudleya
native
Perennial herb

CRASSULACEAE

Dudleya pulverulenta
2018 Ron Vanderhoff
Dudleya pulverulenta
2012 Ann Dalkey
Dudleya pulverulenta
2020 Julia Markey

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

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 multisetus    Big squirreltail grass
native
Perennial grass

POACEAE

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

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

ONAGRACEAE

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

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

ASTERACEAE

Erigeron foliosus var. foliosus
2023 Ron Vanderhoff
Erigeron foliosus var. foliosus
2021 Jacob Martin
Erigeron foliosus var. foliosus
2022 Ron Vanderhoff

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

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. foliolosum    California buckwheat,  Eastern mojave buckwheat,  Red topped buckwheat
native
Shrub

POLYGONACEAE

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

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

ASTERACEAE

Eriophyllum confertiflorum var. confertiflorum
2013 James Gonsman
Eriophyllum confertiflorum var. confertiflorum
2020 Mary Conway
Eriophyllum confertiflorum var. confertiflorum
2020 Ron Vanderhoff

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

GERANIACEAE

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

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

GERANIACEAE

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

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

GERANIACEAE

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

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

PHRYMACEAE

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

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

PAPAVERACEAE

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

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

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

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

MYRTACEAE

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

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

HYDROPHYLLACEAE

Eucrypta chrysanthemifolia var. chrysanthemifolia
2014 Steve Matson
Eucrypta chrysanthemifolia var. chrysanthemifolia
2014 Steve Matson
Eucrypta chrysanthemifolia var. chrysanthemifolia
2014 Steve Matson

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

Festuca californica    California fescue
native
Perennial grass

POACEAE

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

Festuca elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

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

Festuca microstachys    Small fescue
native
Annual grass

POACEAE

Festuca microstachys
2022 Aaron Sunshine
Festuca microstachys
2011 Steve Matson
Festuca microstachys
2011 Steve Matson

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

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

Festuca occidentalis    Western fescue
native
Perennial grass

POACEAE

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

Festuca octoflora    Sixweeks grass
native
Annual grass

POACEAE

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

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

POACEAE

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

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

APIACEAE

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

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

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

Fritillaria ojaiensis    Ojai fritillary
rare native
Perennial herb (bulb)

LILIACEAE

Fritillaria ojaiensis
2020 John Game
Fritillaria ojaiensis
2020 G Froelich
Fritillaria ojaiensis
2019 Gordon Jenkins

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

RUBIACEAE

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

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

RUBIACEAE

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

Galium californicum 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

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

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

Garrya veatchii    Canyon silktassel,  Southern silk tassel,  Veatch silktassel
native
Shrub

GARRYACEAE

Garrya veatchii
2023 Devon Christian
Garrya veatchii
2016 Ron Vanderhoff
Garrya veatchii
2020 Bryant Baker

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 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

native
Annual herb

POLEMONIACEAE

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

Grindelia hirsutula    Gumweed,  Hairy gumweed
native
Perennial herb

ASTERACEAE

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

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

ASTERACEAE

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

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

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

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

Hesperocyparis sargentii    Sargent cypress
native
Tree, Shrub

CUPRESSACEAE

Hesperocyparis sargentii
2021 Bryant Baker
Hesperocyparis sargentii
2021 R.A. Chasey
Hesperocyparis sargentii
2021 Bryant Baker

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

LINACEAE

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

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

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

Holodiscus discolor    Cream bush,  Ocean spray,  Oceanspray
native
Shrub

ROSACEAE

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

Hordeum 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

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

Juncus balticus ssp. ater    Baltic rush
native
Perennial grasslike herb

JUNCACEAE

Juncus balticus ssp. ater
2015 Steve Matson
Juncus balticus ssp. ater
2015 Steve Matson
Juncus balticus ssp. ater
2015 Steve Matson

native
Annual grasslike herb

JUNCACEAE

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

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

JUNCACEAE

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

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

PLANTAGINACEAE

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

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2023 Helen Hancock
Koeleria macrantha
2015 Steve Matson
Koeleria macrantha
2015 Steve Matson

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

ASTERACEAE

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

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

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

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

FABACEAE

Lathyrus vestitus var. vestitus
2023 Steve Conger
Lathyrus vestitus var. vestitus
2022 Charles Russell
Lathyrus vestitus var. vestitus
2015 Chris Jaster

Layia jonesii    Jones' tidytips,  Jones's layia
rare native
Annual herb

ASTERACEAE

Layia jonesii
2021 Kristen Nelson
Layia jonesii
2021 Kristen Nelson
Layia jonesii
2011 Chris Winchell

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

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

Lepidium 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

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Leptosiphon parviflorus
2008 Keir Morse
Leptosiphon parviflorus
2008 Keir Morse
Leptosiphon parviflorus
2008 Keir Morse

Leptosyne douglasii    Douglas' coreopsis
native
Annual herb

ASTERACEAE

Leptosyne douglasii
2020 Manzanita Dictionary
Leptosyne douglasii
2020 Manzanita Dictionary
Leptosyne douglasii
2020 Manzanita Dictionary

Lithophragma heterophyllum    Hill star,  Hillside woodland star
native
Perennial herb

SAXIFRAGACEAE

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

Lobularia maritima    Sweet alyssum
invasive non-native
Perennial herb

BRASSICACEAE

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

Logfia filaginoides    California cottonrose
native
Annual herb

ASTERACEAE

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

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Logfia gallica
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
2022 Dianne Lake
Lomatium caruifolium var. caruifolium
2014 Steve Matson

Lomatium dasycarpum ssp. dasycarpum    Woolly fruited lomatium,  Woollyfruit desertparsley
native
Perennial herb

APIACEAE

Lomatium dasycarpum ssp. dasycarpum
2016 Steve Matson
Lomatium dasycarpum ssp. dasycarpum
2016 Steve Matson
Lomatium dasycarpum ssp. dasycarpum
2016 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

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 hispidula    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

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

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

FABACEAE

Lupinus bicolor
2021 Ken Lunders
Lupinus bicolor
2022 Mike Russler
Lupinus bicolor
2019 Gary McDonald

Lupinus hirsutissimus    Stinging annual lupine,  Stinging lupine
native
Annual herb

FABACEAE

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

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

FABACEAE

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

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

FABACEAE

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

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 latifolia    Pacific starflower
native
Perennial herb

MYRSINACEAE

Lysimachia latifolia
2008 Steve Matson
Lysimachia latifolia
2016 Steve Matson
Lysimachia latifolia
2008 Steve Matson

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

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

Malva nicaeensis
2015 Mike Morales
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

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

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

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

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

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

POACEAE

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

Melilotus 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

Micranthes californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson

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

Monardella palmeri    Palmer's monardella
rare native
Perennial herb (rhizomatous)

LAMIACEAE

Monardella palmeri
2001 CDFA
Monardella palmeri
2012 Chris Winchell
Monardella palmeri
2012 Chris Winchell

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

LAMIACEAE

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

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

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

Nuttallanthus texanus    Blue toadflax
native
Annual, Perennial herb

PLANTAGINACEAE

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

Opuntia ficus-indica    Mission cactus,  Tuna cactus
non-native
Shrub (stem succulent)

CACTACEAE

Opuntia ficus-indica
2020 Ron Vanderhoff
Opuntia ficus-indica
2020 Ron Vanderhoff
Opuntia ficus-indica
2020 Ron Vanderhoff

Opuntia phaeacantha    Brown spined prickly pear,  Mojave prickly pear,  Tulip pricklypear
native
Shrub (stem succulent)

CACTACEAE

Opuntia phaeacantha
2021 R.A. Chasey
Opuntia phaeacantha
2018 Diane Etchison
Opuntia phaeacantha
2021 R.A. Chasey

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

Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

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

Papaver californicum    Fire poppy,  Western poppy
native
Annual herb

PAPAVERACEAE

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

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

OROBANCHACEAE

Pedicularis densiflora
2015 Dee Warenycia
Pedicularis densiflora
2019 Jason Mills
Pedicularis densiflora
2017 Joshua Borkowski

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

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

Pellaea mucronata var. mucronata    Bird's foot fern
native
Fern

PTERIDACEAE

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

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 pringlei    Adobe yampah
rare native
Perennial herb

APIACEAE

Perideridia pringlei
2023 Mike Russler
Perideridia pringlei
2023 Mike Russler
Perideridia pringlei
2023 Mike Russler

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

HYDROPHYLLACEAE

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

Phacelia imbricata ssp. imbricata    Imbricate Phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia imbricata ssp. imbricata
2019 Steve Matson
Phacelia imbricata ssp. imbricata
2019 Steve Matson
Phacelia imbricata ssp. imbricata
2019 Steve Matson

Phalaris paradoxa    Hood canarygrass
non-native
Annual grass

POACEAE

Phalaris paradoxa
2021 David popp
Phalaris paradoxa
2021 John Rawlings
Phalaris paradoxa
2017 James Bailey

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

HYDROPHYLLACEAE

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

native
Shrub (parasitic)

VISCACEAE

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

Pickeringia montana var. montana    Montana chaparral pea
native
Shrub

FABACEAE

Pickeringia montana var. montana
2022 Ron Vanderhoff
Pickeringia montana var. montana
2022 Ron Vanderhoff
Pickeringia montana var. montana
2022 Ron Vanderhoff

Pinus attenuata    Knobcone pine,  Scrub pine
native
Tree

PINACEAE

Pinus attenuata
2009 Ron Vanderhoff
Pinus attenuata
2018 Hayley Ross
Pinus attenuata
2019 Cynthia Powell

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

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

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

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

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

Primula clevelandi [Dodecatheon clevelandii]    Small Tree-Mallow


Prunus dulcis    Domestic almond,  Sweet almond
non-native
Tree

ROSACEAE

Prunus dulcis
2012 Wes Gray
Prunus dulcis
2022 Donald Burk
Prunus dulcis
2021 David popp

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

ROSACEAE

Prunus ilicifolia ssp. ilicifolia
2018 David Greenberger
Prunus ilicifolia ssp. ilicifolia
2019 Ron Vanderhoff
Prunus ilicifolia ssp. ilicifolia
2020 James Gonsman

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

Pteridium aquilinum var. pubescens    Hairy brackenfern,  Western bracken fern
native
Fern

DENNSTAEDTIACEAE

Pteridium aquilinum var. pubescens
2019 Ron Vanderhoff
Pteridium aquilinum var. pubescens
2019 Ron Vanderhoff
Pteridium aquilinum var. pubescens
2022 Bob Sweatt

Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

Pterostegia drymarioides
2016 Steve Matson
Pterostegia drymarioides
2016 Steve Matson
Pterostegia drymarioides
2005 Steve Matson

Quercus agrifolia var. agrifolia    California live oak,  Coast live oak
native
Tree

FAGACEAE

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

Quercus berberidifolia    Inland scrub oak
native
Tree

FAGACEAE

Quercus berberidifolia
2022 David Strauch
Quercus berberidifolia
2020 Cynthia Keiser
Quercus berberidifolia
2020 Cynthia Keiser

Quercus durata var. durata    Leather oak
native
Shrub

FAGACEAE

Quercus durata var. durata
2022 Hunter Breck
Quercus durata var. durata
2020 Charles Russell
Quercus durata var. durata
2020 R.A. Chasey

Quercus lobata    California white oak,  Valley oak
native
Tree

FAGACEAE

Quercus lobata
2023 Helen Hancock
Quercus lobata
2021 Cynthia Powell
Quercus lobata
2023 Suzanne L. Weakley

Rafinesquia californica    California chicory,  California plumseed
native
Annual herb

ASTERACEAE

Rafinesquia californica
2019 David Greenberger
Rafinesquia californica
2021 Ron Vanderhoff
Rafinesquia californica
2017 Steve Matson

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

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

Rhamnus crocea    Redberry buckthorn
native
Shrub

RHAMNACEAE

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

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

Rosa californica    California wild rose,  California wildrose
native
Shrub

ROSACEAE

Rosa californica
2022 Suzanne L. Weakley
Rosa californica
2022 Suzanne L. Weakley
Rosa californica
2020 R.A. Chasey

Rubus armeniacus    Himalayan blackberry,  black berry,  Armenian blackberry
invasive non-native
Shrub

ROSACEAE

Rubus armeniacus
2014 James Gonsman
Rubus armeniacus
2020 Julie A. Kierstead
Rubus armeniacus
2018 Richard Spjut

Rubus 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 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 pulcher    Fiddle dock
non-native
Perennial herb

POLYGONACEAE

Rumex pulcher
2020 Ryan Carle
Rumex pulcher
2022 Chris McDonald
Rumex pulcher
2019 Saul Soto

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

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

FABACEAE

Rupertia physodes
2023 R.A. Chasey
Rupertia physodes
2023 Steve Conger
Rupertia physodes
2020 R.A. Chasey

Sabulina douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

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

Salix breweri    Brewer's willow,  Serpentine willow
native
Shrub

SALICACEAE

Salix breweri
2022 Ryan O'Dell
Salix breweri
2021 R.A. Chasey
Salix breweri
2024 R.A. Chasey

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

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

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

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

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

Salvia mellifera    Black sage
native
Shrub

LAMIACEAE

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

Salvia spathacea    Hummingbird sage
native
Perennial herb

LAMIACEAE

Salvia spathacea
2020 David Wolfson
Salvia spathacea
2020 Abby Nichols
Salvia spathacea
2020 Bryant Baker

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 arguta    Sharp toothed sanicle,  Sharp toothed snakeroot,  Sharptooth blacksnakeroot
native
Perennial herb

APIACEAE

Sanicula arguta
2022 Ron Vanderhoff
Sanicula arguta
2017 Diane Etchison
Sanicula arguta
2006 Steve Matson

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

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

ANACARDIACEAE

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

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

Scutellaria tuberosa    Danny's skullcap,  Scullcap
native
Perennial herb

LAMIACEAE

Scutellaria tuberosa
2006 Steve Matson
Scutellaria tuberosa
2006 Steve Matson
Scutellaria tuberosa
2006 Steve Matson

Selaginella bigelovii    Bigelow's moss fern,  Bigelow's spike moss,  Bushy spikemoss
Selaginella bigelovii
2019 Ron Vanderhoff
Selaginella bigelovii
2019 Ron Vanderhoff
Selaginella bigelovii
2018 Ron Vanderhoff

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

ASTERACEAE

Senecio aphanactis
2019 Matt Berger
Senecio aphanactis
2019 Matt Berger
Senecio aphanactis
2022 R.A. Chasey

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

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

CARYOPHYLLACEAE

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

Silene laciniata ssp. californica    California indian pink
native
Perennial herb

CARYOPHYLLACEAE

Silene laciniata ssp. californica
2023 Alaine Arslan
Silene laciniata ssp. californica
2016 Sue Graue
Silene laciniata ssp. californica
2019 Sue Graue

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

ASTERACEAE

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

Sisymbrium officinale    Hedge mustard,  Hedgemustard
non-native
Annual herb

BRASSICACEAE

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

Sisyrinchium bellum    Western blue eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium bellum
2020 Mary Conway
Sisyrinchium bellum
2024 Ron Vanderhoff
Sisyrinchium bellum
2019 Stacie Wolny

Solanum douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

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

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

SOLANACEAE

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

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

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

Stebbinsoseris heterocarpa    Grassland stebbinsoseris
native
Annual herb

ASTERACEAE

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

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

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

Stephanomeria virgata ssp. pleurocarpa    Tall stephanomeria,  Wand stephanomeria,  Wand wirelettuce
native
Annual herb

ASTERACEAE

Stephanomeria virgata ssp. pleurocarpa
2021 Helen Hancock
Stephanomeria virgata ssp. pleurocarpa
2021 Helen Hancock
Stephanomeria virgata ssp. pleurocarpa
2018 Richard Spjut

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 miliacea var. miliacea    Smilo grass
invasive non-native
Perennial grass

POACEAE

Stipa miliacea var. miliacea
2022 Donald Burk
Stipa miliacea var. miliacea
2009 Keir Morse
Stipa miliacea var. miliacea
2022 Donald Burk

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

Streptanthus lasiophyllus    Small Tree-Mallow


Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos mollis
2019 Ron Vanderhoff
Symphoricarpos mollis
2020 Cara Wilcox
Symphoricarpos mollis
2019 Ron Vanderhoff

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

RANUNCULACEAE

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

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
2020 Bryant Baker
Toxicoscordion fremontii
2021 Steve Matson
Toxicoscordion fremontii
2020 Karen Swift

Trifolium bifidum var. bifidum    Pinole clover
native
Annual herb

FABACEAE

Trifolium bifidum var. bifidum
2020 Matt Berger
Trifolium bifidum var. bifidum
2020 Matt Berger
Trifolium bifidum var. bifidum
2020 Matt Berger

Trifolium ciliolatum    Foothill clover,  Tree clover
native
Annual herb

FABACEAE

Trifolium ciliolatum
2020 Diane Etchison
Trifolium ciliolatum
2015 Diane Etchison
Trifolium ciliolatum
2019 Ron Vanderhoff

Trifolium depauperatum var. 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 fragiferum    Strawberry clover
non-native
Perennial herb

FABACEAE

Trifolium fragiferum
2020 Ron Vanderhoff
Trifolium fragiferum
2020 Ron Vanderhoff
Trifolium fragiferum
2022 Dana York

Trifolium fucatum    Bull clover,  Sour clover
native
Annual herb

FABACEAE

Trifolium fucatum
2014 Steve Matson
Trifolium fucatum
2014 Steve Matson
Trifolium fucatum
2020 Paul Aigner

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 microdon    Thimble clover,  Valparaiso clover
native
Annual herb

FABACEAE

Trifolium microdon
2022 Dee Shea Himes
Trifolium microdon
2022 Dee Shea Himes
Trifolium microdon
2023 R.A. Chasey

Trifolium oliganthum    Few flowered clover,  Fewflower clover,  Minitomcat clover
native
Annual herb

FABACEAE

Trifolium oliganthum
2023 Helen Hancock
Trifolium oliganthum
2022 Mary Merriman
Trifolium oliganthum
2023 R.A. Chasey

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

Trifolium willdenovii
2019 Ron Vanderhoff
Trifolium willdenovii
2019 Ron Vanderhoff
Trifolium willdenovii
2018 Stacie Wolny

Triodanis biflora    Venus looking glass,  Venus' looking glass
native
Annual herb

CAMPANULACEAE

Triodanis biflora
2020 Ken Hickman
Triodanis biflora
2015 Hayley Ross
Triodanis biflora
2018 Ken Hickman

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

Turritis glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Turritis glabra
2021 David Wolfson
Turritis glabra
2021 Mike Russler
Turritis glabra
2020 Chico Hiking Association

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

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

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

Viola pedunculata    California golden violet,  Johnny jump up
native
Perennial herb

VIOLACEAE

Viola pedunculata
2014 Steve Matson
Viola pedunculata
2014 Steve Matson
Viola pedunculata
2014 Steve Matson