logo Calflora Illustrated Plant List 

Santa Rita Ranch Preserve
Central Coast, California
South and East of intersection of Hwy 46 and Old Creek Road, San Luis Obispo County, California

San Luis Obispo County

David Keil  / CNPS-SLO/Land Conservancy of San Luis Obispo County  (2021-09-08)

Record Detail Nearby Surveys What Grows Here?
522 PLANTS
Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
2020 Diane Etchison
Acer macrophyllum
2018 Ron Vanderhoff
Acer macrophyllum
2018 Julie Kierstead Nelson

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

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

Achyrachaena mollis    Blow-Wives
native
Annual herb

ASTERACEAE

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

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

FABACEAE

Acmispon americanus var. americanus
2019 Ron Vanderhoff
Acmispon americanus var. americanus
2019 Matt Berger
Acmispon americanus var. americanus
2017 David Wolfson

Acmispon brachycarpus    Short podded lotus
native
Annual herb

FABACEAE

Acmispon brachycarpus
2005 Steve Matson
Acmispon brachycarpus
2005 Steve Matson
Acmispon brachycarpus
2018 Steve Matson

native
Perennial herb

FABACEAE

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

Acmispon parviflorus    Hill lotus
native
Annual herb

FABACEAE

Acmispon parviflorus
2019 Ron Vanderhoff
Acmispon parviflorus
2005 Steve Matson
Acmispon parviflorus
2005 Steve Matson

Acmispon strigosus    Strigose lotus
native
Annual herb

FABACEAE

Acmispon strigosus
2019 Gary McDonald
Acmispon strigosus
2019 Diane Etchison
Acmispon strigosus
2019 Gary McDonald

Acmispon wrangelianus    Chilean trefoil
native
Annual herb

FABACEAE

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

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

BORAGINACEAE

Adelinia grandis
2019 Eliezer Margolis
Adelinia grandis
2021 Dee Shea Himes
Adelinia grandis
2022 David Strauch

native
Tree, Shrub

ROSACEAE

Adenostoma fasciculatum
2014 Garth Wadsworth
Adenostoma fasciculatum
2021 Ron Vanderhoff
Adenostoma fasciculatum
2017 Angelique Herman

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

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

Aesculus californica    Buckeye,  California buckeye,  California horse chestnut
native
Tree

SAPINDACEAE

Aesculus californica
2018 Joseph Belli
Aesculus californica
2021 Cyril Guyot
Aesculus californica
2011 Steve Matson

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

Agoseris heterophylla var. cryptopleura    Mountain dandelion
native
Annual herb

ASTERACEAE

Agoseris heterophylla var. cryptopleura
2022 Mike Russler
Agoseris heterophylla var. cryptopleura
2022 Mike Russler
Agoseris heterophylla var. cryptopleura
2022 Mike Russler

Agrostis exarata    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

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

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

POACEAE

Agrostis pallens
2021 John Rawlings
Agrostis pallens
2008 Keir Morse
Agrostis pallens
2021 John Rawlings

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

POACEAE

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

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

POACEAE

Aira caryophyllea
2019 Gary McDonald
Aira caryophyllea
2005 Steve Matson
Aira caryophyllea
2015 Chris Jaster

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

ALLIACEAE

Allium unifolium
2017 Hunter Breck
Allium unifolium
2018 Glen Schneider
Allium unifolium
2018 Ken Hickman

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

Amaranthus californicus    California amaranth,  California pigweed
native
Annual herb

AMARANTHACEAE

Amaranthus californicus
2016 Gerald Carr
Amaranthus californicus
2016 Gerald Carr
Amaranthus californicus
2016 Neal Kramer

Amaryllis belladonna    Belladonna lily
non-native
Perennial herb

AMARYLLIDACEAE

Amaryllis belladonna
2016 Camille Nowell
Amaryllis belladonna
2020 Jacob Martin
Amaryllis belladonna
2022 Ron Vanderhoff

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

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

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

BORAGINACEAE

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

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

ASTERACEAE

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

Anthoxanthum odoratum    Sweet vernal grass,  Sweet vernalgrass
invasive non-native
Annual, Perennial grass

POACEAE

Anthoxanthum odoratum
2017 Steve Matson
Anthoxanthum odoratum
2018 Sarah Inman
Anthoxanthum odoratum
2023 Laura Booth

Anthriscus caucalis    Bur chervil
non-native
Annual herb, Vine

APIACEAE

Anthriscus caucalis
2017 Diane Etchison
Anthriscus caucalis
2013 Toni Corelli
Anthriscus caucalis
2020 Jennifer Mo

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

ROSACEAE

Aphanes occidentalis
2019 Ron Vanderhoff
Aphanes occidentalis
2017 Ron Vanderhoff
Aphanes occidentalis
2020 R.A. Chasey

Arbutus menziesii    Madrono,  Pacific madrone
native
Tree

ERICACEAE

Arbutus menziesii
2021 Cynthia Powell
Arbutus menziesii
2021 R.A. Chasey
Arbutus menziesii
2021 Hunter Breck

Arctostaphylos obispoensis    Bishop manzanita,  Serpentine manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos obispoensis
2019 Susan McDougall
Arctostaphylos obispoensis
2021 Mike Russler
Arctostaphylos obispoensis
2021 Mike Russler

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 eriocarpa    Indian milkweed,  Kotolo milkweed,  Woolypod milkweed
native
Perennial herb

APOCYNACEAE

Asclepias eriocarpa
2018 Jennifer Poore
Asclepias eriocarpa
2019 Cliff Halverson
Asclepias eriocarpa
2019 Ron Vanderhoff

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

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

Aspidotis californica    California lace fern,  California lacefern
native
Fern

PTERIDACEAE

Aspidotis californica
2016 Barbara Boethling
Aspidotis californica
2018 Hunter Breck
Aspidotis californica
2003 Michael Charters

Aspidotis densa    Cliffbrake,  Lace fern
native
Fern

PTERIDACEAE

Aspidotis densa
2021 R.A. Chasey
Aspidotis densa
2019 Matt Berger
Aspidotis densa
2017 David popp

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

FABACEAE

Astragalus gambelianus
2020 Ron Vanderhoff
Astragalus gambelianus
2019 Ron Vanderhoff
Astragalus gambelianus
2022 Mike Russler

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

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

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

POACEAE

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

Azolla microphylla    Mexican mosquito fern
rare native
Fern

AZOLLACEAE

Azolla microphylla
2020 John Dittes
Azolla microphylla
2018 joaquin hale
Azolla microphylla
2020 John Dittes

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

ASTERACEAE

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

native
Shrub

ASTERACEAE

Baccharis pilularis var. consanguinea
2009 Toni Corelli
Baccharis pilularis var. consanguinea
2022 John Doyen
Baccharis pilularis var. consanguinea
2018 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

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

BRASSICACEAE

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

Blitum californicum   


Bloomeria crocea var. aurea    Common goldenstar
native
Perennial herb

THEMIDACEAE

Bloomeria crocea var. aurea
2019 David Greenberger
Bloomeria crocea var. aurea
2012 Gary McDonald
Bloomeria crocea var. aurea
2014 Gary McDonald

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

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

Brachypodium hybridum   


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

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

BRASSICACEAE

Brassica rapa
2017 Cynthia Powell
Brassica rapa
2021 Diane Etchison
Brassica rapa
2018 Angelique Herman

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

POACEAE

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

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

POACEAE

Briza minor
2022 Alice Cummings
Briza minor
2019 Gary McDonald
Briza minor
2019 Gary McDonald

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

THEMIDACEAE

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

non-native
Annual, Perennial grass

POACEAE

Bromus catharticus var. catharticus
2019 John Rawlings
Bromus catharticus var. catharticus
2020 Jean Pawek
Bromus catharticus var. catharticus
2020 Jean Pawek

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

POACEAE

Bromus catharticus var. elatus
2017 MCOSD EDRR
Bromus catharticus var. elatus
2006 Steve Matson
Bromus catharticus var. elatus
2017 MCOSD EDRR

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
2020 Hailey Laskey
Bromus madritensis
2015 Chris Jaster

Bromus rubens    Red brome
invasive non-native
Annual grass

POACEAE

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

Bromus sitchensis var. carinatus    California brome
native
Perennial grass

POACEAE

Bromus sitchensis var. carinatus
2020 Ron Vanderhoff
Bromus sitchensis var. carinatus
2021 Neal Kramer
Bromus sitchensis var. carinatus
2023 Carolyn Harper

Bromus sitchensis var. marginatus    Mountain brome
native
Perennial grass

POACEAE

Bromus sitchensis var. marginatus
2018 Susan McDougall
Bromus sitchensis var. marginatus
2014 Susan McDougall
Bromus sitchensis var. marginatus
2021 Arlee Montalvo

Bromus sterilis    Poverty brome,  Sterile brome
non-native
Annual grass

POACEAE

Bromus sterilis
2021 John Rawlings
Bromus sterilis
2021 David popp
Bromus sterilis
2022 David popp

Calandrinia menziesii    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia menziesii
2019 Ron Vanderhoff
Calandrinia menziesii
2021 Rebecca Nelson
Calandrinia menziesii
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 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
2019 Marisa Persaud
Calochortus clavatus var. clavatus
2008 Gary A. Monroe

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

CONVOLVULACEAE

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

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

CONVOLVULACEAE

Calystegia subacaulis ssp. episcopalis
2021 Kristen Nelson
Calystegia subacaulis ssp. episcopalis
2018 Adonis Tate
Calystegia subacaulis ssp. episcopalis
2021 Kristen Nelson

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

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

Cardamine hirsuta    Hairy bitter cress,  Hairy bittercress
non-native
Annual herb

BRASSICACEAE

Cardamine hirsuta
2020 Ken Lunders
Cardamine hirsuta
2022 Donald Burk
Cardamine hirsuta
2022 Donald Burk

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

BRASSICACEAE

Cardamine oligosperma
2008 Steve Matson
Cardamine oligosperma
2013 Emily Wong
Cardamine oligosperma
2013 Ron Wolf

non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus ssp. pycnocephalus
2020 Ron Vanderhoff
Carduus pycnocephalus ssp. pycnocephalus
2019 Gary McDonald
Carduus pycnocephalus ssp. pycnocephalus
2021 Ron Vanderhoff

Carex barbarae    Santa barbara sedge,  Valley sedge
native
Perennial grasslike herb

CYPERACEAE

Carex barbarae
2017 Eric Wrubel, NPS
Carex barbarae
2023 Ron Vanderhoff
Carex barbarae
2023 Ron Vanderhoff

Carex globosa    Round fruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex globosa
2014 Steve Matson
Carex globosa
2014 Steve Matson
Carex globosa
2021 John Rawlings

Carex gracilior    Slender sedge
native
Perennial grasslike herb

CYPERACEAE

Carex gracilior
2010 Toni Corelli
Carex gracilior
2003 Steve Matson
Carex gracilior
2003 Steve Matson

Carex harfordii    Harford's sedge,  Monterey sedge
native
Perennial grasslike herb

CYPERACEAE

Carex harfordii
2022 Sara Timby
Carex harfordii
2022 Sara Timby
Carex harfordii
2019 Ken Hickman

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

CYPERACEAE

Carex nudata
2014 John Malpas
Carex nudata
2021 Kristen Nelson
Carex nudata
2021 Kristen Nelson

Carex serratodens    Bifid sedge,  Two tooth sedge
native
Perennial grasslike herb

CYPERACEAE

Carex serratodens
2021 Cynthia Powell
Carex serratodens
2019 Steve Matson
Carex serratodens
2019 Steve Matson

Carex subbracteata    Small bract sedge
native
Perennial grasslike herb

CYPERACEAE

Carex subbracteata
2022 John Rawlings
Carex subbracteata
2021 John Rawlings
Carex subbracteata
2021 John Rawlings

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

CYPERACEAE

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

Carthamus lanatus    Woolly distaff thistle
invasive non-native
Annual herb

ASTERACEAE

Carthamus lanatus
2019 Lenihan Mazur
Carthamus lanatus
2019 Danielle Carney
Carthamus lanatus
2019 Danielle Carney

Castilleja affinis var. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis var. affinis
2006 Steve Matson
Castilleja affinis var. affinis
2021 Dylan Neubauer
Castilleja affinis var. affinis
2019 Ron Vanderhoff

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

OROBANCHACEAE

Castilleja densiflora var. densiflora
2018 Hayley Ross
Castilleja densiflora var. densiflora
2019 Verna Jigour
Castilleja densiflora var. densiflora
2022 Alice Cummings

Ceanothus cuneatus var. cuneatus    Buck brush,  Buckbrush
native
Shrub

RHAMNACEAE

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

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

ASTERACEAE

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

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

ASTERACEAE

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

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

Centranthus ruber    Jupiter's beard,  Red valerian
non-native
Annual, Perennial herb

VALERIANACEAE

Centranthus ruber
2013 Zachary Mikalonis
Centranthus ruber
2022 Justin Felder
Centranthus ruber
2009 Neal Kramer

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

CARYOPHYLLACEAE

Cerastium glomeratum
2023 Ron Vanderhoff
Cerastium glomeratum
2023 Ron Vanderhoff
Cerastium glomeratum
2007 Carol W. Witham

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

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

CHENOPODIACEAE

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

Chlorogalum pomeridianum var. 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 membranacea    Pink spineflower
native
Annual herb

POLYGONACEAE

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

Chorizanthe palmeri    Palmer's spineflower
rare native
Annual herb

POLYGONACEAE

Chorizanthe palmeri
2019 David Greenberger
Chorizanthe palmeri
2012 Terrence Gosliner
Chorizanthe palmeri
2014 John Doyen

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
2017 James Bailey
Cirsium vulgare
2019 Gustavo Vasquez
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 gracilis ssp. gracilis    Graceful clarkia,  Slender clarkia
native
Annual herb

ONAGRACEAE

Clarkia gracilis ssp. gracilis
2020 Steve Laymon
Clarkia gracilis ssp. gracilis
2020 Steve Laymon
Clarkia gracilis ssp. gracilis
2015 Richard Spellenberg

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 purpurea ssp. viminea    Large godetia,  Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea ssp. viminea
2020 Steve Laymon
Clarkia purpurea ssp. viminea
2020 Steve Laymon
Clarkia purpurea ssp. viminea
2020 Steve Laymon

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

ONAGRACEAE

Clarkia unguiculata
2019 David Greenberger
Clarkia unguiculata
2021 Mike Russler
Clarkia unguiculata
2022 Suzanne L. Weakley

Claytonia exigua ssp. exigua    Little spring beauty,  Serpentine springbeauty,  Viridis
native
Annual herb

MONTIACEAE

Claytonia exigua ssp. exigua
2021 Zoya Akulova-Barlow
Claytonia exigua ssp. exigua
2022 Mike Russler
Claytonia exigua ssp. exigua
2003 James B. Gratiot

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

MONTIACEAE

Claytonia parviflora ssp. parviflora
2017 Gary McDonald
Claytonia parviflora ssp. parviflora
2017 Gary McDonald
Claytonia parviflora ssp. parviflora
2017 Gary McDonald

Claytonia perfoliata ssp. mexicana    Southern miner's lettuce
native
Annual herb

MONTIACEAE

Claytonia perfoliata ssp. mexicana
2002 Dean Wm. Taylor
Claytonia perfoliata ssp. mexicana
2013 Susan McDougall
Claytonia perfoliata ssp. mexicana
2014 David popp

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

MONTIACEAE

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

Clematis lasiantha    Chaparral clematis,  Pipestem
native
Perennial herb, Vine

RANUNCULACEAE

Clematis lasiantha
2016 Julie Watson
Clematis lasiantha
2016 Julie Ann Watson
Clematis lasiantha
2018 Steve Matson

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

RANUNCULACEAE

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

Clinopodium douglasii    Yerba buena
native
Perennial herb

LAMIACEAE

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

Collinsia sparsiflora var. collina    Hillside collinsia
native
Annual herb

PLANTAGINACEAE

Collinsia sparsiflora var. collina
2021 Helen Hancock
Collinsia sparsiflora var. collina
2022 Mike Russler
Collinsia sparsiflora var. collina
2022 Mike Russler

Collomia heterophylla    Variableleaf collomia,  Varied leaved collomia
native
Annual herb

POLEMONIACEAE

Collomia heterophylla
2018 Stacie Wolny
Collomia heterophylla
2017 Steve Matson
Collomia heterophylla
2018 Parker Santiago

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

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

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

CONVOLVULACEAE

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

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
2021 Mike Russler

Cornus glabrata    Brown dogwood
native
Tree, Shrub

CORNACEAE

Cornus glabrata
2021 Donald Burk
Cornus glabrata
2020 Susan McDougall
Cornus glabrata
2019 Richard Spjut

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

Cotoneaster pannosus    Cotoneaster,  Silverleaf cotoneaster,  Woolly cotoneaster
invasive non-native
Shrub

ROSACEAE

Cotoneaster pannosus
2021 David Wolfson
Cotoneaster pannosus
2019 Cynthia Powell
Cotoneaster pannosus
2018 MCOSD EDRR

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

ASTERACEAE

Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2022 Steve Matson

Crassula aquatica    Aquatic pygmy weed,  Pigmy weed,  Water pygmyweed
native
Annual herb

CRASSULACEAE

Crassula aquatica
2019 Ron Vanderhoff
Crassula aquatica
2019 Ron Vanderhoff
Crassula aquatica
2019 Ron Vanderhoff

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

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

CRASSULACEAE

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

Croton setiger    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Croton setiger
2018 Rachelle Gray
Croton setiger
2011 Steve Matson
Croton setiger
2011 Steve Matson

Cryptantha clevelandii    Cleveland's cryptantha,  Common cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha clevelandii
2019 Ron Vanderhoff
Cryptantha clevelandii
2019 Diane Etchison
Cryptantha clevelandii
2019 Diane Etchison

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

Cynosurus echinatus    Annual dogtail,  Bristly dogstail grass,  Dogtail grass
invasive non-native
Annual grass

POACEAE

Cynosurus echinatus
2017 Gary McDonald
Cynosurus echinatus
2010 Julie A. Kierstead
Cynosurus echinatus
2022 Ron Vanderhoff

Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

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

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

POACEAE

Dactylis glomerata
2018 Jennifer Mo
Dactylis glomerata
2021 R.A. Chasey
Dactylis glomerata
2017 Gary McDonald

Danthonia californica    California oatgrass
native
Perennial grass

POACEAE

Danthonia californica
2020 Sara Timby
Danthonia californica
2007 Steve Matson
Danthonia californica
2022 Justin Luong

Datisca glomerata    Durango root
native
Perennial herb

DATISCACEAE

Datisca glomerata
2019 Ron Vanderhoff
Datisca glomerata
2019 Diane Etchison
Datisca glomerata
2008 Keir Morse

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

native
Perennial herb

RANUNCULACEAE

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

Delphinium parryi ssp. parryi    Parry's larkspur,  San bernardino larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium parryi ssp. parryi
2022 Mike Russler
Delphinium parryi ssp. parryi
2009 Barry Breckling
Delphinium parryi ssp. parryi
2018 Gary McDonald

Deschampsia elongata    Hairgrass,  Slender hairgrass
native
Perennial grass

POACEAE

Deschampsia elongata
2021 John Rawlings
Deschampsia elongata
2021 John Rawlings
Deschampsia elongata
2009 Adonis (Don) Tate

Diplacus aurantiacus var. aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Diplacus aurantiacus var. aurantiacus
2019 Dana York
Diplacus aurantiacus var. aurantiacus
2019 Stacie Wolny
Diplacus aurantiacus var. aurantiacus
2019 Gary McDonald

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

DIPSACACEAE

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

native
Perennial herb

THEMIDACEAE

Dipterostemon capitatus ssp. capitatus
2023 Alaine Arslan
Dipterostemon capitatus ssp. capitatus
2016 Steve Matson
Dipterostemon capitatus ssp. capitatus
2008 Steve Matson

native
Perennial herb

ROSACEAE

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

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

DRYOPTERIDACEAE

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

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

CRASSULACEAE

Dudleya abramsii ssp. bettinae
2011 Chris Winchell
Dudleya abramsii ssp. bettinae
2011 Chris Winchell
Dudleya abramsii ssp. bettinae
2011 Chris Winchell

Dudleya caespitosa    Coast dudleya,  Sand lettuce
native
Perennial herb

CRASSULACEAE

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

Dudleya lanceolata    Lanceleaf liveforever,  Southern california dudleya
native
Perennial herb

CRASSULACEAE

Dudleya lanceolata
2015 Dee Warenycia
Dudleya lanceolata
2020 Steven M Norris
Dudleya lanceolata
2020 Steven M Norris

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

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

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

CYPERACEAE

Eleocharis macrostachya
2022 Ken-ichi Ueda
Eleocharis macrostachya
2004 Carol W. Witham
Eleocharis macrostachya
2003 Steve Matson

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 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 David popp
Elymus multisetus
2019 Ron Vanderhoff
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

native
Perennial grass

POACEAE

Elymus xhansenii
2022 Aaron Sunshine
Elymus xhansenii
2022 John Rawlings
Elymus xhansenii
2018 Gregory Arena

Epilobium brachycarpum    Annual fireweed,  Autumn willowweed,  Panicled willow herb
native
Annual herb

ONAGRACEAE

Epilobium brachycarpum
2015 Ron Vanderhoff
Epilobium brachycarpum
2019 Ramona Robison
Epilobium brachycarpum
2020 Ron Vanderhoff

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
2017 Gary McDonald
Epilobium ciliatum ssp. ciliatum
2019 Gary McDonald
Epilobium ciliatum ssp. ciliatum
2019 Ron Vanderhoff

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
2009 Keir Morse

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

EQUISETACEAE

Equisetum laevigatum
2020 David popp
Equisetum laevigatum
2021 Ron Vanderhoff
Equisetum laevigatum
2021 Richard Spjut

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

EQUISETACEAE

Equisetum telmateia ssp. braunii
2011 Toni Corelli
Equisetum telmateia ssp. braunii
2021 Bryant Baker
Equisetum telmateia ssp. braunii
2021 Bryant Baker

Erigeron bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Erigeron bonariensis
2021 Donald Burk
Erigeron bonariensis
2017 Diane Etchison
Erigeron bonariensis
2008 Jorg Fleige

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

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

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

ASTERACEAE

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

Erigeron philadelphicus var. philadelphicus    Philadelphia fleabane
native
Perennial herb

ASTERACEAE

Erigeron philadelphicus var. philadelphicus
2021 R.A. Chasey
Erigeron philadelphicus var. philadelphicus
2015 Neal Kramer
Erigeron philadelphicus var. philadelphicus
2021 R.A. Chasey

Erigeron sumatrensis    Tropical horseweed
non-native
Annual herb

ASTERACEAE

Erigeron sumatrensis
2021 Doug Allshouse
Erigeron sumatrensis
2020 Ron Vanderhoff
Erigeron sumatrensis
2020 Ron Vanderhoff

Eriogonum cithariforme    Cithara buckwheat
native
Annual herb

POLYGONACEAE

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

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 nudum var. pubiflorum    Hairy flowered buckwheat,  Naked buckwheat,  Fremont's Wild Buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum nudum var. pubiflorum
2006 Steve Matson
Eriogonum nudum var. pubiflorum
2011 Steve Matson
Eriogonum nudum var. pubiflorum
2011 Steve Matson

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

Erodium brachycarpum    Foothill filaree,  Short fruited filaree,  Shortfruit stork's bill
non-native
Annual herb

GERANIACEAE

Erodium brachycarpum
2016 Bob van Duinen
Erodium brachycarpum
2020 Angelique Herman
Erodium brachycarpum
2016 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
2020 Julia Markey
Erodium cicutarium
2022 Steve Matson

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

GERANIACEAE

Erodium moschatum
2016 Steve Matson
Erodium moschatum
2016 James Bailey
Erodium moschatum
2018 Stacie Wolny

Erythranthe cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Erythranthe cardinalis
2021 Mike Russler
Erythranthe cardinalis
2017 Aaron Echols
Erythranthe cardinalis
2021 Mike Russler

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

PHRYMACEAE

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

Erythranthe microphylla    Small leaved monkeyflower
rare native
Annual herb

PHRYMACEAE

Erythranthe microphylla
2019 Susan McDougall
Erythranthe microphylla
2021 Robert Steers
Erythranthe microphylla
2021 Robert Steers

native
Perennial herb

PHRYMACEAE

Erythranthe nasuta
2023 Catherine Chang
Erythranthe nasuta
2021 Mike Russler
Erythranthe nasuta
2021 Mike Russler

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

Euphorbia maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

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

Euphorbia 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

Eurybia radulina    Roughleaf aster
native
Perennial herb

ASTERACEAE

Eurybia radulina
2022 Suzanne L. Weakley
Eurybia radulina
2022 Bob Sweatt
Eurybia radulina
2022 Bob Sweatt

Euthamia occidentalis    Western flat topped goldenrod,  Western goldenrod,  Western goldentop
native
Perennial herb

ASTERACEAE

Euthamia occidentalis
2021 Steve Matson
Euthamia occidentalis
2018 Ron Vanderhoff
Euthamia occidentalis
2018 Ron Vanderhoff

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

POACEAE

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

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

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

Festuca californica    California fescue
native
Perennial grass

POACEAE

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

Festuca 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 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

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

ROSACEAE

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

Frangula californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

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

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

LILIACEAE

Fritillaria affinis
2017 Steve Matson
Fritillaria affinis
2008 Steve Matson
Fritillaria affinis
2020 Karen Swift

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

LILIACEAE

Fritillaria biflora var. biflora
2020 David Greenberger
Fritillaria biflora var. biflora
2016 Ron Vanderhoff
Fritillaria biflora var. biflora
2018 Michael Mitchell

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. maritimum    Coastal california bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum ssp. maritimum
2012 BOB CASE
Galium californicum ssp. maritimum
2022 Irene Rosen
Galium californicum ssp. maritimum
University and Jepson Herbaria

Galium murale    Tiny bedstraw,  Yellow wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium murale
2022 R.A. Chasey
Galium murale
2021 Cameron Chabre
Galium murale
2014 Bryan Derr

Galium parisiense    Wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium parisiense
2021 Al Keuter
Galium parisiense
2020 Ron Vanderhoff
Galium parisiense
2020 David popp

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 Ron Vanderhoff

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

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

Gastridium phleoides    Nit grass
non-native
Annual grass

POACEAE

Gastridium phleoides
2020 Ron Vanderhoff
Gastridium phleoides
2020 Ron Vanderhoff
Gastridium phleoides
2021 Paul Aigner

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

Geranium molle    Crane's bill geranium,  Dove's foot geranium,  Dovefoot geranium
non-native
Annual, Perennial herb

GERANIACEAE

Geranium molle
2008 Steve Matson
Geranium molle
2008 Steve Matson
Geranium molle
2022 Elizabeth Harreschou

Gilia capitata    Blue field gilia,  Bluehead gilia
native
Annual herb

POLEMONIACEAE

Gilia capitata
2011 Gerald Carr
Gilia capitata
2011 Gerald Carr
Gilia capitata
2011 Gerald Carr

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 tenuiflora ssp. docmilleri    Greater yellowthroat gilia,  Slender flowered gilia
native
Annual herb

POLEMONIACEAE

Gilia tenuiflora ssp. docmilleri
2022 Irene Rosen
Gilia tenuiflora ssp. docmilleri
2022 R.A. Chasey
Gilia tenuiflora ssp. docmilleri
2022 Cynthia Powell

Glyceria declinata    Waxy mannagrass
invasive non-native
Perennial grass

POACEAE

Glyceria declinata
2021 David popp
Glyceria declinata
2016 Andrew Longman
Glyceria declinata
2022 David popp

Gnaphalium palustre    Lowland cudweed,  Western marsh cudweed
native
Annual herb

ASTERACEAE

Gnaphalium palustre
2019 Ron Vanderhoff
Gnaphalium palustre
2005 Steve Matson
Gnaphalium palustre
2019 Ron Vanderhoff

Grindelia camporum    Common gumplant,  Great valley gumweed,  Gum plant
native
Perennial herb

ASTERACEAE

Grindelia camporum
2023 R.A. Chasey
Grindelia camporum
2019 Ron Vanderhoff
Grindelia camporum
2019 Ron Vanderhoff

Hazardia squarrosa    Saw toothed goldenbush,  Sawtooth goldenbush
native
Shrub

ASTERACEAE

Hazardia squarrosa
2018 Mary Conway
Hazardia squarrosa
2019 Bonnie Nickel
Hazardia squarrosa
2022 Ron Vanderhoff

Hedypnois rhagadioloides    Crete weed
non-native
Annual herb

ASTERACEAE

Hedypnois rhagadioloides
2012 Michael Perlmutter
Hedypnois rhagadioloides
2022 Steve Matson
Hedypnois rhagadioloides
2022 Steve Matson

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
2019 Patrick Furtado
Helenium puberulum
2013 Toni Corelli
Helenium puberulum
2015 Stephen Rosenthal

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

HELIOTROPIACEAE

Heliotropium curassavicum var. oculatum
2019 Rachelle Gray
Heliotropium curassavicum var. oculatum
2018 Ron Vanderhoff
Heliotropium curassavicum var. oculatum
2019 Ron Vanderhoff

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
2021 R.A. Chasey

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

URTICACEAE

Hesperocnide tenella
2019 David Greenberger
Hesperocnide tenella
2023 Ken-ichi Ueda
Hesperocnide tenella
2020 Ken Hickman

Heteromeles arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

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

Heterotheca villosissima   


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
2021 Jamie Spielmann
Hoita macrostachya
2009 Lynn Watson
Hoita macrostachya
2021 Jamie Spielmann

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

FABACEAE

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

Holocarpha heermannii    Heermann's tarweed
native
Annual herb

ASTERACEAE

Holocarpha heermannii
2018 Richard Spjut
Holocarpha heermannii
2022 Cynthia Powell
Holocarpha heermannii
2022 Cynthia Powell

native
Shrub

ROSACEAE

Holodiscus discolor var. discolor
2022 R.A. Chasey
Holodiscus discolor var. discolor
2021 R.A. Chasey
Holodiscus discolor var. discolor
2020 Ron Vanderhoff

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

POACEAE

Hordeum brachyantherum ssp. californicum
2021 Cynthia Powell
Hordeum brachyantherum ssp. californicum
2023 John Rawlings
Hordeum brachyantherum ssp. californicum
2021 John Rawlings

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

Isoetes nuttallii    Nuttall's quillwort
native

ISOETACEAE

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

Isolepis cernua var. cernua    Low bulrush
native
Annual grasslike herb

CYPERACEAE

Isolepis cernua var. cernua
2018 Ken Hickman
Isolepis cernua var. cernua
2010 Aaron Arthur
Isolepis cernua var. cernua
2018 Ron Vanderhoff

Juglans hindsii    Northern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans hindsii
2016 Steve Matson
Juglans hindsii
2016 Steve Matson
Juglans hindsii
2018 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 bufonius var. congestus    Clustered toad rush
native
Annual grasslike herb

JUNCACEAE

Juncus bufonius var. congestus
2022 R.A. Chasey
Juncus bufonius var. congestus
2009 Neal Kramer
Juncus bufonius var. congestus
2009 Neal Kramer

Juncus effusus ssp. pacificus    Pacific rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus ssp. pacificus
2009 Toni Corelli
Juncus effusus ssp. pacificus
2021 R.A. Chasey
Juncus effusus ssp. pacificus
2021 John Rawlings

Juncus mexicanus    Mexican rush
native
Perennial grasslike herb

JUNCACEAE

Juncus mexicanus
2023 Ron Vanderhoff
Juncus mexicanus
2020 Mary Wloch
Juncus mexicanus
2019 Diane Etchison

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
2008 Neal Kramer

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

JUNCACEAE

Juncus phaeocephalus var. paniculatus
2019 John Rawlings
Juncus phaeocephalus var. paniculatus
2021 John Rawlings
Juncus phaeocephalus var. paniculatus
2020 Alice Cummings

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

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

PLANTAGINACEAE

Kickxia elatine
2018 Ron Vanderhoff
Kickxia elatine
2018 Ron Vanderhoff
Kickxia elatine
2016 Barbara Boethling

Kickxia spuria    Fluellin,  Roundleaf cancerwort
non-native
Perennial herb

PLANTAGINACEAE

Kickxia spuria
2020 David Wolfson
Kickxia spuria
2020 Vivian Neou
Kickxia spuria
2013 Neal Kramer

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2020 Matt Berry
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

Lactuca serriola    Prickly lettuce,  Prickly wild lettuce
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

Lamarckia aurea    Goldentop grass
non-native
Annual grass

POACEAE

Lamarckia aurea
2017 B.J. Dion
Lamarckia aurea
2019 Ron Vanderhoff
Lamarckia aurea
2015 James Gonsman

Lamium amplexicaule    Giraffe head,  Henbit deadnettle
non-native
Annual herb

LAMIACEAE

Lamium amplexicaule
2005 Steve Matson
Lamium amplexicaule
2005 Steve Matson
Lamium amplexicaule
2021 Mike Russler

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

Lasthenia gracilis
2016 Michael Mitchell
Lasthenia gracilis
2019 Susan McDougall
Lasthenia gracilis
2014 Michael Mitchell

Lathyrus angulatus    Angled pea vine
non-native
Vine

FABACEAE

Lathyrus angulatus
2019 Julie Kierstead Nelson
Lathyrus angulatus
2019 Julie Kierstead Nelson
Lathyrus angulatus
2018 Cynthia Powell

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

FABACEAE

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

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

FABACEAE

Lathyrus vestitus var. vestitus
2018 Ron Vanderhoff
Lathyrus vestitus var. vestitus
2022 Charles Russell
Lathyrus vestitus var. vestitus
2015 Chris Jaster

Lavandula stoechas    French lavender
non-native
Shrub

LAMIACEAE

Lavandula stoechas
2022 Robert Steers
Lavandula stoechas
2019 Julian Geoghegan
Lavandula stoechas
2015 Chris Jaster

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

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

Lemna minor    Smaller duckweed
native
Perennial herb

ARACEAE

Lemna minor
2019 Ron Vanderhoff
Lemna minor
2019 Ron Vanderhoff
Lemna minor
2019 Ron Vanderhoff

Lemna minuta    Least duckweed
native
Perennial herb

ARACEAE

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

Lemna turionifera    Turion duckweed
native
Perennial herb

ARACEAE

Lemna turionifera
2001 James B. Gratiot
Lemna turionifera
2014 Jeff Greenhouse

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

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

BRASSICACEAE

Lepidium strictum
2020 Julie A. Kierstead
Lepidium strictum
2008 Keir Morse
Lepidium strictum
2011 Zoya Akulova

Leptosiphon bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Leptosiphon bicolor
2019 David Greenberger
Leptosiphon bicolor
2008 Steve Matson
Leptosiphon bicolor
2008 Steve Matson

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

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

native
Annual herb

POLEMONIACEAE

Linanthus dichotomus ssp. dichotomus
2019 Jacob Smith
Linanthus dichotomus ssp. dichotomus
2019 Jacob Smith
Linanthus dichotomus ssp. dichotomus
2008 Steve Matson

Lithophragma affine    Common woodland star,  San francisco woodland star,  Woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma affine
2017 Bonnie Nickel
Lithophragma affine
2022 Mike Russler
Lithophragma affine
2019 Diane Etchison

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

Logfia filaginoides    California cottonrose
native
Annual herb

ASTERACEAE

Logfia filaginoides
2019 Steve Matson
Logfia filaginoides
2019 Steve Matson
Logfia filaginoides
2019 Matt Berger

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

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

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

APIACEAE

Lomatium dasycarpum ssp. dasycarpum
2017 James Gonsman
Lomatium dasycarpum ssp. dasycarpum
2018 Gary McDonald
Lomatium dasycarpum ssp. dasycarpum
2018 Gary McDonald

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

APIACEAE

Lomatium parvifolium
2020 David Greenberger
Lomatium parvifolium
2011 Chris Winchell
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
2019 Stacie Wolny
Lonicera hispidula
2019 Stacie Wolny
Lonicera hispidula
2021 Bryant Baker

Lotus tenuis    Narrow-leaf bird's-foot trefoil
non-native
Perennial herb

FABACEAE

Lotus tenuis
2018 Julian Geoghegan
Lotus tenuis
2018 Julian Geoghegan
Lotus tenuis
2018 Julian Geoghegan

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

Lupinus latifolius var. latifolius    Broad leaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius var. latifolius
2021 John Rawlings
Lupinus latifolius var. latifolius
2020 Paul Aigner
Lupinus latifolius var. latifolius
2009 Thomas Stoughton

Lupinus microcarpus var. densiflorus    Chick lupine,  Dense flowered platycarpos,  Whitewhorl lupine
native
Annual herb

FABACEAE

Lupinus microcarpus var. densiflorus
2014 Steve Matson
Lupinus microcarpus var. densiflorus
2014 Steve Matson
Lupinus microcarpus var. densiflorus
2014 Steve Matson

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

Luzula macrantha   


Luzula subsessilis    Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula subsessilis
2021 David popp
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
2019 Barbara Boethling
Lysimachia arvensis
2022 Chris McDonald

Lysimachia latifolia    Pacific starflower
native
Perennial herb

MYRSINACEAE

Lysimachia latifolia
2018 Blair Pubols
Lysimachia latifolia
2014 James Gonsman
Lysimachia latifolia
2008 Steve Matson

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

LYTHRACEAE

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

Madia elegans    Common madia
native
Annual herb

ASTERACEAE

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

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

ASTERACEAE

Madia gracilis
2019 Ron Vanderhoff
Madia gracilis
2021 Amber Bedgood
Madia gracilis
2019 Ron Vanderhoff

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

ASTERACEAE

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

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

BERBERIDACEAE

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

Maianthemum racemosum    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum racemosum
2020 Bob Sweatt
Maianthemum racemosum
2018 Steve Matson
Maianthemum racemosum
2019 Stacie Wolny

Maianthemum stellatum    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum stellatum
2021 Cyril Guyot
Maianthemum stellatum
2003 Steve Matson
Maianthemum stellatum
2020 Susan McDougall

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

MALVACEAE

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

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

Malva nicaeensis
2015 Mike Morales
Malva nicaeensis
2020 Ron Vanderhoff
Malva nicaeensis
2020 Ron Vanderhoff

Marah fabacea    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah fabacea
2018 Karen Scheuermann
Marah fabacea
2021 Cyril Guyot
Marah fabacea
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

Marsilea vestita ssp. vestita    Hairy pepperwort,  Hairy waterclover
native
Fern

MARSILEACEAE

Marsilea vestita ssp. vestita
2019 Ron Vanderhoff
Marsilea vestita ssp. vestita
2019 Ron Vanderhoff
Marsilea vestita ssp. vestita
2017 Ron Vanderhoff

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2008 Steve Matson
Matricaria discoidea
2019 Diane Etchison
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

Medicago sativa    Alfalfa
non-native
Perennial herb

FABACEAE

Medicago sativa
2020 Bob Sweatt
Medicago sativa
2005 Louis-M. Landry
Medicago sativa
2003 Michael Charters

Melica californica    California melicgrass
native
Perennial grass

POACEAE

Melica californica
2023 John Rawlings
Melica californica
2021 John Rawlings
Melica californica
2022 John Rawlings

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
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

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

LAMIACEAE

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

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
2014 James Gonsman
Mentha pulegium
2022 R.A. Chasey
Mentha pulegium
2015 Chris Jaster

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
2022 Donald Burk
Mentha spicata
2022 Donald Burk
Mentha spicata
2014 Zoya Akulova

Mentha suaveolens    Apple mint
non-native
Perennial herb

LAMIACEAE

Mentha suaveolens
2018 George Butterworth
Mentha suaveolens
2021 Ron Vanderhoff
Mentha suaveolens
2018 George Butterworth

Micranthes californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes californica
2020 Cara Wilcox
Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson

Micropus californicus var. californicus    Q tips,  Slender cottonweed
native
Annual herb

ASTERACEAE

Micropus californicus var. californicus
2006 Steve Matson
Micropus californicus var. californicus
2021 Ron Vanderhoff
Micropus californicus var. californicus
null

Micropus californicus var. subvestitus    Hairy slender cottonweed,  Q tips
native
Annual herb

ASTERACEAE

Micropus californicus var. subvestitus
2022 R.A. Chasey
Micropus californicus var. subvestitus
2022 R.A. Chasey
Micropus californicus var. subvestitus
2022 R.A. Chasey

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

ASTERACEAE

Microseris douglasii ssp. douglasii
2022 Steve Laymon
Microseris douglasii ssp. douglasii
2019 John Rawlings
Microseris douglasii ssp. douglasii
2022 Mike Russler

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

ASTERACEAE

Microseris douglasii ssp. tenella
2022 Helen Hancock
Microseris douglasii ssp. tenella
2019 Diane Renshaw
Microseris douglasii ssp. tenella
2022 Helen Hancock

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Microsteris gracilis
2021 Mike Russler
Microsteris gracilis
2003 Steve Matson
Microsteris gracilis
2003 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

Muhlenbergia rigens    Deergrass
native
Perennial grass

POACEAE

Muhlenbergia rigens
2004 Steve Matson
Muhlenbergia rigens
2018 Cynthia Powell
Muhlenbergia rigens
2022 Ron Vanderhoff

Myriopteris intertexta    Coastal lip fern
native
Fern

PTERIDACEAE

Myriopteris intertexta
2018 Adam Chasey
Myriopteris intertexta
2020 R.A. Chasey
Myriopteris intertexta
2020 R.A. Chasey

Najas guadalupensis    Guadalupe water nymph,  Southern waternymph
native
Annual herb

HYDROCHARITACEAE

Najas guadalupensis
2020 Ron Vanderhoff
Najas guadalupensis
2020 Ron Vanderhoff
Najas guadalupensis
2021 Ron Vanderhoff

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

Nasturtium officinale
2019 Patrick Furtado
Nasturtium officinale
2016 Joan Hampton
Nasturtium officinale
2019 Diane Etchison

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 mellita    Honeyscented pincushionplant,  Skunk navarretia
native
Annual herb

POLEMONIACEAE

Navarretia mellita
2019 Steve Matson
Navarretia mellita
2019 Steve Matson
Navarretia mellita
2019 Steve Matson

Nemophila pedunculata    Littlefoot nemophila,  Meadow nemophila
native
Annual herb

HYDROPHYLLACEAE

Nemophila pedunculata
2019 Matt Berger
Nemophila pedunculata
2003 Steve Matson
Nemophila pedunculata
2023 Helen Hancock

Nicotiana acuminata var. multiflora    Many flowered tobacco,  Manyflower tobacco,  Tobacco
non-native
Annual herb

SOLANACEAE

Nicotiana acuminata var. multiflora
2022 Cindy Roessler
Nicotiana acuminata var. multiflora
2022 Paul Watts
Nicotiana acuminata var. multiflora
2009 Keir Morse

native
Tree, Shrub

FAGACEAE

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

Oemleria cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

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

Osmorhiza berteroi    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza berteroi
2021 Mike Russler
Osmorhiza berteroi
2020 Bob Sweatt
Osmorhiza berteroi
2020 Bob Sweatt

Osmorhiza brachypoda    California sweet cicely,  California sweetcicely
native
Perennial herb

APIACEAE

Osmorhiza brachypoda
2017 Aaron Echols
Osmorhiza brachypoda
2020 Ron Vanderhoff
Osmorhiza brachypoda
2022 Ron Vanderhoff

Oxalis pilosa    Hairy wood sorrel
native
Annual herb

OXALIDACEAE

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

Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

Paeonia californica
2021 Ron Vanderhoff
Paeonia californica
2022 Ron Vanderhoff
Paeonia californica
2019 Susan McDougall

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

Pellaea andromedifolia
2021 Mike Russler
Pellaea andromedifolia
2021 Steve Matson
Pellaea andromedifolia
2020 Tina Curiel

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

PTERIDACEAE

Pellaea mucronata var. mucronata
2018 Rachelle Gray
Pellaea mucronata var. mucronata
2020 R.A. Chasey
Pellaea mucronata var. mucronata
2019 Susan McDougall

Pentachaeta alsinoides    Tiny pygmy daisy,  Tiny pygmydaisy
native
Annual herb

ASTERACEAE

Pentachaeta alsinoides
2021 Ken Hickman
Pentachaeta alsinoides
2022 Ken Hickman
Pentachaeta alsinoides
2023 David Gowen

native
Fern

PTERIDACEAE

Pentagramma triangularis ssp. triangularis
2019 James Gonsman
Pentagramma triangularis ssp. triangularis
2008 Steve Matson
Pentagramma triangularis ssp. triangularis
2008 Steve Matson

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

APIACEAE

Perideridia gairdneri ssp. gairdneri
2021 Mary Conway
Perideridia gairdneri ssp. gairdneri
2018 Matthew Allen
Perideridia gairdneri ssp. gairdneri
2021 Scott Yarger

Persicaria amphibia    Water smartweed
native
Perennial herb (aquatic)

POLYGONACEAE

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

Persicaria punctata    Dotted smartweed
native
Perennial herb

POLYGONACEAE

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

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 imbricata ssp. imbricata    Imbricate Phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia imbricata ssp. imbricata
2022 R.A. Chasey
Phacelia imbricata ssp. imbricata
2022 Robert Steers
Phacelia imbricata ssp. imbricata
2022 Robert Steers

Phacelia malvifolia    Stinging phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia malvifolia
2018 Michael Mitchell
Phacelia malvifolia
2022 Jennifer Mo
Phacelia malvifolia
2013 Toni Corelli

Phacelia nemoralis ssp. nemoralis    Woods phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia nemoralis ssp. nemoralis
2020 Ken Hickman
Phacelia nemoralis ssp. nemoralis
2016 Glen Schneider
Phacelia nemoralis ssp. nemoralis
2014 Genevieve K. Walden

Phacelia rattanii    Rattan's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia rattanii
2022 Dee Shea Himes
Phacelia rattanii
2022 Dee Shea Himes
Phacelia rattanii
2020 Ken Hickman

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

POACEAE

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

Phalaris 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
2021 Ron Vanderhoff

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

Physocarpus capitatus    Ninebark,  Pacific ninebark,  Western ninebark
native
Shrub

ROSACEAE

Physocarpus capitatus
2020 Helen Hancock
Physocarpus capitatus
2018 Julian Geoghegan
Physocarpus capitatus
2019 Julie Kierstead Nelson

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 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

Plagiobothrys trachycarpus    Rough fruited allocarya,  Roughfruit popcornflower
native
Annual herb

BORAGINACEAE

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

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

PLANTAGINACEAE

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

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
2019 Bob Sweatt
Plantago major
2009 Barry Breckling
Plantago major
2013 Debra L. Cook

Plantago ovata var. fastigiata    Desert plantain
native
Annual herb

PLANTAGINACEAE

Plantago ovata var. fastigiata
2019 Matt Berger
Plantago ovata var. fastigiata
2008 Richard Spjut
Plantago ovata var. fastigiata
2019 Susan McDougall

Platanus racemosa    California sycamore,  Western sycamore
native
Tree

PLATANACEAE

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

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

Plectritis ciliosa    Long spurred plectritis,  Longspur seablush
native
Annual herb

VALERIANACEAE

Plectritis ciliosa
2022 Steve Matson
Plectritis ciliosa
2005 Steve Matson
Plectritis ciliosa
2022 Steve Matson

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 infirma    Weak blue grass,  Weak bluegrass
non-native
Annual grass

POACEAE

Poa infirma
2019 Zoya Akulova
Poa infirma
2019 Zoya Akulova
Poa infirma
2019 Zoya Akulova

Poa pratensis    Kentucky blue grass,  Kentucky bluegrass
invasive non-native
Perennial grass

POACEAE

Poa pratensis
2013 Andrea Williams
Poa pratensis
2008 Keir Morse
Poa pratensis
2013 Andrea Williams

Poa secunda var. scabrella    One sided blue grass,  Pine bluegrass,  Sandberg bluegrass
native
Perennial grass

POACEAE

Poa secunda var. scabrella
2019 Rachelle Gray
Poa secunda var. scabrella
2019 Paul Aigner
Poa secunda var. scabrella
2020 Paul Aigner

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

LAMIACEAE

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

Polygonum aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare
2022 Mike Russler
Polygonum aviculare
2022 John Doyen
Polygonum aviculare
2023 Ron Vanderhoff

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
2020 Ron Vanderhoff
Polypodium californicum
2021 Ron Vanderhoff
Polypodium californicum
2022 Suzanne L. Weakley

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

POLYPODIACEAE

Polypodium calirhiza
2022 R.A. Chasey
Polypodium calirhiza
2015 James Gonsman
Polypodium calirhiza
2020 Susan McDougall

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

Polypogon viridis    Water beard grass
non-native
Perennial grass

POACEAE

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

Polystichum munitum    Western sword fern,  Western swordfern
native
Fern

DRYOPTERIDACEAE

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

Populus fremontii ssp. fremontii    Fremont cottonwood
native
Tree

SALICACEAE

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

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

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

native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff
Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff
Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff

Potamogeton nodosus    Long leaved pondweed,  Longleaf pondweed,  Pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton nodosus
2020 Ken Hickman
Potamogeton nodosus
2019 Gena Bentall
Potamogeton nodosus
2020 Ken Hickman

native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton pusillus ssp. pusillus
2007 Neal Kramer
Potamogeton pusillus ssp. pusillus
null
Potamogeton pusillus ssp. pusillus
2013 Jake Ruygt

Poterium sanguisorba    Garden burnet
non-native
Perennial herb

ROSACEAE

Poterium sanguisorba
2021 David Wolfson
Poterium sanguisorba
2021 David Wolfson
Poterium sanguisorba
2011 Barry Breckling

Primula clevelandii    Padre's shooting star
native
Perennial herb

PRIMULACEAE

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

Prosartes hookeri    Drops of gold
native
Perennial herb

LILIACEAE

Prosartes hookeri
2019 Stacie Wolny
Prosartes hookeri
2020 Ken Lunders
Prosartes hookeri
2019 Stacie Wolny

Prunus emarginata    Bitter cherry
native
Tree, Shrub

ROSACEAE

Prunus emarginata
2020 Belinda Lo
Prunus emarginata
2019 Susan McDougall
Prunus emarginata
2019 Zachary Snider

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

ROSACEAE

Prunus ilicifolia var. ilicifolia
2018 David Greenberger
Prunus ilicifolia var. ilicifolia
2019 Ron Vanderhoff
Prunus ilicifolia var. ilicifolia
2019 Ron Vanderhoff

native
Perennial herb

ASTERACEAE

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

Pseudognaphalium 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
2011 Toni Corelli
Pseudognaphalium luteoalbum
2019 Diane Etchison
Pseudognaphalium luteoalbum
2021 Ron Vanderhoff

Pseudognaphalium microcephalum    Wright's cudweed
native
Perennial herb

ASTERACEAE

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

Pseudognaphalium ramosissimum    Pink cudweed
native
Annual, Biennial herb

ASTERACEAE

Pseudognaphalium ramosissimum
2021 R.A. Chasey
Pseudognaphalium ramosissimum
2021 R.A. Chasey
Pseudognaphalium ramosissimum
2016 Barbara Boethling

Pseudognaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

Pseudognaphalium stramineum
2020 Ryan Carle
Pseudognaphalium stramineum
2017 Diane Etchison
Pseudognaphalium stramineum
2011 Toni Corelli

Psilocarphus tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus
2006 Steve Matson
Psilocarphus tenellus
2017 Toni Corelli
Psilocarphus tenellus
2018 Ron Vanderhoff

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

DENNSTAEDTIACEAE

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

Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

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

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 douglasii    Blue oak
native
Tree

FAGACEAE

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

Quercus kelloggii    Black oak,  California black oak
native
Tree

FAGACEAE

Quercus kelloggii
2018 John Schmidt
Quercus kelloggii
2020 Kim Cabrera
Quercus kelloggii
2020 Janith Johnson

Quercus lobata    California white oak,  Valley oak
native
Tree

FAGACEAE

Quercus lobata
2018 stephen rosenthal
Quercus lobata
2023 Helen Hancock
Quercus lobata
2020 Charles Russell

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

RANUNCULACEAE

Ranunculus aquatilis var. diffusus
2018 Cynthia Powell
Ranunculus aquatilis var. diffusus
2016 Ken Lunders
Ranunculus aquatilis var. diffusus
2007 Steve Matson

native
Perennial herb

RANUNCULACEAE

Ranunculus californicus var. californicus
2018 Gary McDonald
Ranunculus californicus var. californicus
2016 Steve Matson
Ranunculus californicus var. californicus
2016 Steve Matson

Ranunculus hebecarpus    Delicate buttercup,  Pubescent fruited buttercup,  Slender annual buttercup
native
Annual herb

RANUNCULACEAE

Ranunculus hebecarpus
2019 Ron Vanderhoff
Ranunculus hebecarpus
2021 Ron Vanderhoff
Ranunculus hebecarpus
2019 Ron Vanderhoff

Rhamnus crocea    Redberry buckthorn
native
Shrub

RHAMNACEAE

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

Rhamnus ilicifolia    Evergreen buckthorn,  Hollyleaf redberry
native
Shrub

RHAMNACEAE

Rhamnus ilicifolia
2016 Steve Matson
Rhamnus ilicifolia
2020 Rebecca Schoenenberger
Rhamnus ilicifolia
2019 Diane Etchison

Ribes amarum    Bitter gooseberry
native
Shrub

GROSSULARIACEAE

Ribes amarum
2021 Keir Morse
Ribes amarum
2019 Ron Vanderhoff
Ribes amarum
2021 David popp

Ribes californicum var. californicum    California gooseberry,  Hillside gooseberry
native
Shrub

GROSSULARIACEAE

Ribes californicum var. californicum
2019 Matt Berger
Ribes californicum var. californicum
2018 Gary McDonald
Ribes californicum var. californicum
2019 Adam Chasey

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

GROSSULARIACEAE

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

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

GROSSULARIACEAE

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

Ribes sericeum    Santa lucia gooseberry
rare native
Shrub

GROSSULARIACEAE

Ribes sericeum
2012 Robert Hotaling
Ribes sericeum
2004 Dean Wm. Taylor

Ribes speciosum    Fuchsia flowered gooseberry,  Fuchsiaflower gooseberry
native
Shrub

GROSSULARIACEAE

Ribes speciosum
2022 David Chipping
Ribes speciosum
2021 Ron Vanderhoff
Ribes speciosum
2012 Ron Vanderhoff

Robinia pseudoacacia    Black locust
invasive non-native
Tree

FABACEAE

Robinia pseudoacacia
2021 Ron Vanderhoff
Robinia pseudoacacia
2021 David Wolfson
Robinia pseudoacacia
2015 Ron Vanderhoff

Rorippa curvisiliqua    Curvepod yellow cress,  Curvepod yellowcress,  Western yellow cress
native
Annual, Perennial herb

BRASSICACEAE

Rorippa curvisiliqua
2020 Ron Vanderhoff
Rorippa curvisiliqua
2023 Nona Chiariello
Rorippa curvisiliqua
2008 John Dittes

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

Rosa canina    Dog rose
non-native
Shrub

ROSACEAE

Rosa canina
2018 MCOSD EDRR
Rosa canina
2017 Hayley Ross
Rosa canina
2017 David popp

native
Shrub

ROSACEAE

Rosa gymnocarpa var. gymnocarpa
2019 James Gonsman
Rosa gymnocarpa var. gymnocarpa
2020 David Krause
Rosa gymnocarpa var. gymnocarpa
2017 Steve Matson

Rosa spithamea    Ground rose,  Sonoma rose
native
Shrub

ROSACEAE

Rosa spithamea
2020 David Krause
Rosa spithamea
1973 Geoff Burleigh
Rosa spithamea
2009 Neal Kramer

Rubus armeniacus    Himalayan blackberry,  black berry
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 acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

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

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

POLYGONACEAE

Rumex conglomeratus
2020 Ron Vanderhoff
Rumex conglomeratus
2021 David popp
Rumex conglomeratus
2020 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
2022 David Strauch

Rumex kerneri    Kerner's dock
non-native
Perennial herb

POLYGONACEAE

Rumex kerneri
2007 Neal Kramer
Rumex kerneri
2011 Neal Kramer

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
2010 Margo Bors
Rumex salicifolius var. salicifolius
2018 Gary McDonald
Rumex salicifolius var. salicifolius
2017 John Doyen

Sabulina douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

Sabulina douglasii
2022 Steve Matson
Sabulina douglasii
2022 Steve Matson
Sabulina douglasii
2021 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
2017 Susan Kotelnicki
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 spathacea    Hummingbird sage
native
Perennial herb

LAMIACEAE

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

Sambucus mexicana ssp. mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

Sambucus mexicana ssp. mexicana
2021 Mike Russler
Sambucus mexicana ssp. mexicana
2020 Diane Etchison
Sambucus mexicana ssp. mexicana
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 bipinnata    Poison sanicle
native
Perennial herb

APIACEAE

Sanicula bipinnata
2008 Steve Matson
Sanicula bipinnata
2009 Keir Morse
Sanicula bipinnata
2022 R.A. Chasey

Sanicula bipinnatifida    Purple sanicle,  Snakeroot,  Purple Sanicle, Shoe Buttons
native
Perennial herb

APIACEAE

Sanicula bipinnatifida
2019 Diane Etchison
Sanicula bipinnatifida
2018 Gary McDonald
Sanicula bipinnatifida
2020 Susan McDougall

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

APIACEAE

Sanicula crassicaulis
2020 Susan McDougall
Sanicula crassicaulis
2020 Ryan Carle
Sanicula crassicaulis
2020 R.A. Chasey

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

Schoenoplectus californicus    California bulrush
native
Perennial grasslike herb

CYPERACEAE

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

native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus pungens var. longispicatus
2012 Michael Mitchell
Schoenoplectus pungens var. longispicatus
2022 R.A. Chasey
Schoenoplectus pungens var. longispicatus
2022 R.A. Chasey

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

CYPERACEAE

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

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

SCROPHULARIACEAE

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

Scutellaria tuberosa    Danny's skullcap,  Scullcap
native
Perennial herb

LAMIACEAE

Scutellaria tuberosa
2006 Steve Matson
Scutellaria tuberosa
2016 Ron Vanderhoff
Scutellaria tuberosa
2012 Ron Vanderhoff

Senecio aronicoides    California butterweed,  California groundsel,  California rayless butterweed
native
Perennial herb

ASTERACEAE

Senecio aronicoides
2020 Helen Hancock
Senecio aronicoides
2008 Steve Matson
Senecio aronicoides
2020 Julie A. Kierstead

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. laciniata    Cardinal catchfly
native
Perennial herb

CARYOPHYLLACEAE

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

Silene verecunda    Dolores campion,  San francisco campion
native
Perennial herb

CARYOPHYLLACEAE

Silene verecunda
2019 Diane Etchison
Silene verecunda
2019 Matt Berger
Silene verecunda
2022 Cynthia Powell

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

ASTERACEAE

Silybum marianum
2020 Nancy Hamlett
Silybum marianum
2009 Barry Rice
Silybum marianum
2019 Marisa Persaud

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 officinale    Hedge mustard,  Hedgemustard
non-native
Annual herb

BRASSICACEAE

Sisymbrium officinale
2013 Neal Kramer
Sisymbrium officinale
2022 Julian Geoghegan
Sisymbrium officinale
2021 Ann Garside

Sisyrinchium bellum    Western blue eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium bellum
2020 Mary Conway
Sisyrinchium bellum
2020 Benjamin Gould
Sisyrinchium bellum
2019 Stacie Wolny

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

SOLANACEAE

Solanum umbelliferum var. xanti
2022 Mike Russler
Solanum umbelliferum var. xanti
2014 Steve Matson
Solanum umbelliferum var. xanti
2014 Steve Matson

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

ASTERACEAE

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

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

ASTERACEAE

Soliva sessilis
2022 Diana Wahl
Soliva sessilis
2019 Abbot Chambers
Soliva sessilis
2019 Abbot Chambers

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

ASTERACEAE

Sonchus asper ssp. asper
2022 Ron Vanderhoff
Sonchus asper ssp. asper
2022 Ron Vanderhoff
Sonchus asper ssp. asper
2022 Ron Vanderhoff

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

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

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

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

CARYOPHYLLACEAE

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

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

CARYOPHYLLACEAE

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

Sporobolus schoenoides    Swamp grass,  Swamp picklegrass,  Swamp pricklegrass
non-native
Annual grass

POACEAE

Sporobolus schoenoides
2017 Ron Vanderhoff
Sporobolus schoenoides
2021 Cynthia Powell
Sporobolus schoenoides
2018 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

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

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

Stellaria pallida    Pale starwort
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria pallida
2008 Keir Morse
Stellaria pallida
2022 Donald Burk
Stellaria pallida
2005 Keir Morse

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

ASTERACEAE

Stephanomeria cichoriacea
2019 David Greenberger
Stephanomeria cichoriacea
2018 John Game
Stephanomeria cichoriacea
2013 James Gonsman

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

ASTERACEAE

Stephanomeria elata
2021 Helen Hancock
Stephanomeria elata
2021 Helen Hancock
Stephanomeria elata
2021 Helen Hancock

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
2019 Ron Vanderhoff
Stipa pulchra
2018 Gary McDonald

native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. glandulosus
2021 Meghan Lindt
Streptanthus glandulosus ssp. glandulosus
2020 Stacie Wolny
Streptanthus glandulosus ssp. glandulosus
2021 Bryant Baker

Stuckenia pectinata    Sago pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

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

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

CAPRIFOLIACEAE

Symphoricarpos albus var. laevigatus
2020 Jacob Smith
Symphoricarpos albus var. laevigatus
2015 Robert Sikora
Symphoricarpos albus var. laevigatus
2020 Jacob Smith

Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

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

Symphyotrichum subspicatum    Douglas aster
native
Annual herb

ASTERACEAE

Symphyotrichum subspicatum
2021 David Wolfson
Symphyotrichum subspicatum
2021 David Wolfson
Symphyotrichum subspicatum
2013 Al Keuter

Taraxacum officinale    Common dandelion,  Dandelion,  Red seeded dandelion
non-native
Perennial herb

ASTERACEAE

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

Tauschia hartwegii    Hartweg's tauschia,  Hartweg's umbrellawort,  Tauschia
native
Perennial herb

APIACEAE

Tauschia hartwegii
2006 Steve Matson
Tauschia hartwegii
2006 Steve Matson
Tauschia hartwegii
2006 Steve Matson

Tetrapteron graciliflorum    Hill sun cup
native
Annual herb

ONAGRACEAE

Tetrapteron graciliflorum
2021 Charles Russell
Tetrapteron graciliflorum
2009 Keir Morse
Tetrapteron graciliflorum
2010 Richard Spjut

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
2009 Keir Morse

native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes ssp. curvipes
2019 Matt Berger
Thysanocarpus curvipes ssp. curvipes
2020 R.A. Chasey
Thysanocarpus curvipes ssp. curvipes
2022 Mike Russler

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

APIACEAE

Torilis arvensis
2019 Ron Vanderhoff
Torilis arvensis
2018 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
2022 R.A. Chasey

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 exaltatum    Giant death camas
native
Perennial herb

MELANTHIACEAE

Toxicoscordion exaltatum
2020 Matt Berger
Toxicoscordion exaltatum
2022 BOB CASE
Toxicoscordion exaltatum
2020 Matt Berger

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

Tragopogon dubius    Goat's beard,  Yellow salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon dubius
2020 Bob Sweatt
Tragopogon dubius
2001 Steven Thorsted
Tragopogon dubius
2022 Ron Vanderhoff

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

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

Trichostema lanceolatum    Vinegarweed
native
Annual herb

LAMIACEAE

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

Trifolium bifidum var. decipiens    Notch leaf clover
native
Annual herb

FABACEAE

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

Trifolium 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. depauperatum    Cowbag clover,  Dwarf bladder clover,  Dwarf sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum var. depauperatum
2021 Steve Matson
Trifolium depauperatum var. depauperatum
2021 Steve Matson
Trifolium depauperatum var. depauperatum
2010 Ron Wolf

Trifolium dubium    Shamrock clover,  Little Hop Clover,  Suckling clover
non-native
Annual herb

FABACEAE

Trifolium dubium
2018 Stacie Wolny
Trifolium dubium
2022 Dana York
Trifolium dubium
2017 MCOSD EDRR

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 glomeratum    Clustered clover
non-native
Annual herb

FABACEAE

Trifolium glomeratum
2012 Michael Mitchell
Trifolium glomeratum
2020 Ryan Carle
Trifolium glomeratum
2012 Michael Mitchell

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 microcephalum    Hairy clover,  Small headed clover
native
Annual herb

FABACEAE

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

Trifolium repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens
2017 Gary McDonald
Trifolium repens
2007 Steve Matson
Trifolium repens
2017 Gary McDonald

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

FABACEAE

Trifolium subterraneum
2008 Steve Matson
Trifolium subterraneum
2008 Steve Matson
Trifolium subterraneum
2008 Steve Matson

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

FABACEAE

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

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

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

Trillium angustipetalum    Narrow petaled wakerobin,  Narrowpetal wakerobin
native
Perennial herb

MELANTHIACEAE

Trillium angustipetalum
2019 Kolby Lundgren
Trillium angustipetalum
2015 Nathan Feldman
Trillium angustipetalum
2020 Susan McDougall

Triphysaria eriantha ssp. eriantha    Butter 'n' eggs,  Johnny tuck
native
Annual herb

OROBANCHACEAE

Triphysaria eriantha ssp. eriantha
2005 Steve Matson
Triphysaria eriantha ssp. eriantha
2021 Steve Matson
Triphysaria eriantha ssp. eriantha
2008 Steve Matson

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

OROBANCHACEAE

Triphysaria pusilla
2018 Steve Matson
Triphysaria pusilla
2018 Steve Matson
Triphysaria pusilla
2022 R.A. Chasey

Trisetum canescens    Nodding oatgrass,  Nodding trisetum,  Tall trisetum
native
Perennial grass

POACEAE

Trisetum canescens
2020 John Rawlings
Trisetum canescens
2022 Ellen Uhler
Trisetum canescens
2017 MCOSD EDRR

Triteleia ixioides ssp. ixioides    Golden brodiaea
native
Perennial herb

THEMIDACEAE

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

Triticum aestivum    Common wheat,  Wheat
non-native
Annual grass

POACEAE

Triticum aestivum
2022 Lenihan Mazur
Triticum aestivum
2021 Julian Geoghegan
Triticum aestivum
2021 John Rawlings

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
2022 Ron Vanderhoff
Typha domingensis
2020 Ellen Gartside

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

TYPHACEAE

Typha latifolia
2021 Ron Vanderhoff
Typha latifolia
2022 Emily R. Allen
Typha latifolia
2022 Ron Vanderhoff

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

LAURACEAE

Umbellularia californica
2016 Steve Matson
Umbellularia californica
2016 Steve Matson
Umbellularia californica
2020 Ron Vanderhoff

Uropappus lindleyi    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

Uropappus lindleyi
2019 Zack Abbey
Uropappus lindleyi
2022 Mary Ann Machi
Uropappus lindleyi
2016 Ron Vanderhoff

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

URTICACEAE

Urtica dioica ssp. holosericea
2022 Donald Burk
Urtica dioica ssp. holosericea
2019 Hunter Breck
Urtica dioica ssp. holosericea
2021 R.A. Chasey

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

URTICACEAE

Urtica urens
2019 Gary McDonald
Urtica urens
2018 Ron Vanderhoff
Urtica urens
2018 Ron Vanderhoff

Verbascum thapsus    Common mullein,  Woolly mullein
invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbascum thapsus
2021 R.A. Chasey
Verbascum thapsus
2020 Kim Cabrera
Verbascum thapsus
2019 Marisa Persaud

Verbascum virgatum    Wand mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum virgatum
2021 Mike Russler
Verbascum virgatum
2021 Ron Vanderhoff
Verbascum virgatum
2021 Mike Russler

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

VERBENACEAE

Verbena lasiostachys var. lasiostachys
2010 Steve Matson
Verbena lasiostachys var. lasiostachys
2018 Mary Conway
Verbena lasiostachys var. lasiostachys
2018 Mary Conway

Veronica anagallis-aquatica    Water speedwell
non-native
Perennial herb

PLANTAGINACEAE

Veronica anagallis-aquatica
2015 Steve Matson
Veronica anagallis-aquatica
2015 Steve Matson
Veronica anagallis-aquatica
2022 Bob Sweatt

Veronica arvensis    Corn speedwell,  Speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica arvensis
2006 Steve Matson
Veronica arvensis
2018 Villa Piazza
Veronica arvensis
2020 mike andrews

Veronica catenata    Chain speedwell
non-native
Perennial herb

PLANTAGINACEAE

Veronica catenata
2021 R.A. Chasey
Veronica catenata
2021 R.A. Chasey
Veronica catenata
2015 Barry Breckling

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

PLANTAGINACEAE

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

Veronica persica    Bird's eye speedwell,  Birdeye speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica persica
2019 Patrick Furtado
Veronica persica
2022 Bob Sweatt
Veronica persica
2022 Ron Vanderhoff

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

FABACEAE

Vicia americana ssp. americana
2017 James Gonsman
Vicia americana ssp. americana
2021 Ken Lunders
Vicia americana ssp. americana
2021 Ken Lunders

Vicia sativa ssp. nigra    Common vetch,  Garden vetch,  Smaller common vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa ssp. nigra
2020 Ken Lunders
Vicia sativa ssp. nigra
2020 Ron Vanderhoff
Vicia sativa ssp. nigra
2020 Ron Vanderhoff

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
2017 Gary McDonald
Vicia villosa ssp. varia
2017 Gary McDonald
Vicia villosa ssp. varia
2020 Julie A. Kierstead

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

APOCYNACEAE

Vinca major
2020 Julia Markey
Vinca major
2020 Julie A. Kierstead
Vinca major
2021 Ron Vanderhoff

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

VIOLACEAE

Viola pedunculata
2014 James Gonsman
Viola pedunculata
2023 Julia Markey
Viola pedunculata
2023 Richard Sullivan

Vitis vinifera    Cultivated grape,  Wine grape
non-native
Vine, Shrub

VITACEAE

Vitis vinifera
2020 Jennifer Mo
Vitis vinifera
2014 Eric Wrubel
Vitis vinifera
2005 Luigi Rignanese

Woodwardia fimbriata    Chain fern,  Giant chain fern,  Giant chainfern
native
Fern

BLECHNACEAE

Woodwardia fimbriata
2019 Julie Kierstead Nelson
Woodwardia fimbriata
2020 R.A. Chasey
Woodwardia fimbriata
2019 Susan McDougall

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

ASTERACEAE

Xanthium spinosum
2018 Joslyn Curtis
Xanthium spinosum
2014 Richard Spellenberg
Xanthium spinosum
2008 Neal Kramer

Zannichellia palustris    Horned pondweed
native
Perennial herb

ZANNICHELLIACEAE

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