logo Calflora Illustrated Plant List 


San Luis Obispo County

David Keil  / CNPS-SLO  (2019-06-07)

Record Detail Nearby Surveys What Grows Here?
351 PLANTS
Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2017 Diane Etchison
Achillea millefolium
2019 Margot Cunningham
Achillea millefolium
2018 Gary McDonald

Achyrachaena mollis    Soft blow wives
native
Annual herb

ASTERACEAE

Achyrachaena mollis
2015 Diane Etchison
Achyrachaena mollis
2015 Diane Etchison
Achyrachaena mollis
2019 Julie Hallett Horne

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
2008 Keir Morse
Acmispon brachycarpus
2005 Steve Matson
Acmispon brachycarpus
2013 Jean Pawek

native
Perennial herb

FABACEAE

Acmispon junceus var. junceus
2013 Al Keuter
Acmispon junceus var. junceus
2016 Neal Kramer
Acmispon junceus var. junceus
2006 Adonis (Don) Tate

native
Annual herb

FABACEAE

Acmispon maritimus var. maritimus
2008 Keir Morse
Acmispon maritimus var. maritimus
2008 Keir Morse
Acmispon maritimus var. maritimus
2019 Mary Conway

Acmispon strigosus    Strigose lotus
native
Annual herb

FABACEAE

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

Agrostis exarata    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

Agrostis exarata
2008 Keir Morse
Agrostis exarata
2009 Zoya Akulova
Agrostis exarata
2018 Neal Kramer

Alisma triviale    Northern water plantain
native
Perennial herb (aquatic)

ALISMATACEAE

Alisma triviale
2019 Gena Bentall
Alisma triviale
2007 Neal Kramer
Alisma triviale
2012 Barry Breckling

native
Perennial herb (bulb)

ALLIACEAE

Allium lacunosum var. lacunosum
2011 Steven Perry
Allium lacunosum var. lacunosum
2009 Vernon Smith
Allium lacunosum var. lacunosum
2012 Ron Vanderhoff

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

Amaranthus albus
2006 Keir Morse
Amaranthus albus
2017 Angelique Herman
Amaranthus albus
2004 Penn Martin II

Amaranthus blitoides    Mat amaranth,  Prostrate amaranth,  Prostrate pigweed
native
Annual herb

AMARANTHACEAE

Amaranthus blitoides
2005 Luigi Rignanese
Amaranthus blitoides
2009 Neal Kramer
Amaranthus blitoides
2015 Zoya Akulova

Amaranthus deflexus    Amaranth,  Large fruited amaranth,  Largefruit amaranth
non-native
Annual herb

AMARANTHACEAE

Amaranthus deflexus
2018 Ron Vanderhoff
Amaranthus deflexus
2018 Ron Vanderhoff
Amaranthus deflexus
2018 Ron Vanderhoff

Amaranthus hybridus    Slender pigweed,  Slim amaranth
non-native
Annual herb

AMARANTHACEAE

Amaranthus hybridus
2006 Adonis (Don) Tate
Amaranthus hybridus
2006 Adonis (Don) Tate
Amaranthus hybridus
2006 Adonis (Don) Tate

Amaranthus powellii    Powell's amaranth
native
Annual herb

AMARANTHACEAE

Amaranthus powellii
2015 Keir Morse
Amaranthus powellii
2015 Keir Morse
Amaranthus powellii
2015 Keir Morse

Ambrosia acanthicarpa    Annual bursage,  Annual burweed
native
Annual herb

ASTERACEAE

Ambrosia acanthicarpa
2009 Steve Matson
Ambrosia acanthicarpa
2013 Steve Matson
Ambrosia acanthicarpa
2009 Neal Kramer

Ambrosia psilostachya    Ragweed,  Western ragweed
native
Perennial herb

ASTERACEAE

Ambrosia psilostachya
2014 Richard Spellenberg
Ambrosia psilostachya
2011 Aaron Arthur
Ambrosia psilostachya
2011 Aaron Arthur

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia intermedia
2020 Matt Berger
Amsinckia intermedia
Geoff Burleigh
Amsinckia intermedia
2014 Vertin Alvarez

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
2017 B.J. Dion
Anagallis arvensis
2009 Keir Morse
Anagallis arvensis
2019 Barbara Boethling

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

ASTERACEAE

Anthemis cotula
2007 Neal Kramer
Anthemis cotula
2019 Dave Beller
Anthemis cotula
2017 Diane Etchison

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

APIACEAE

Apiastrum angustifolium
2008 Keir Morse
Apiastrum angustifolium
2018 Ron Vanderhoff
Apiastrum angustifolium
2006 Keir Morse

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

POACEAE

Aristida adscensionis
2006 James M. Andre
Aristida adscensionis
2006 Trent M. Draper
Aristida adscensionis
2012 Neal Kramer

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

ASTERACEAE

Artemisia californica
2019 Diane Etchison
Artemisia californica
2018 James Gonsman
Artemisia californica
2020 Bryant Baker

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
2018 Stacie Wolny
Artemisia douglasiana
2017 Alison Sheehey
Artemisia douglasiana
2016 Glen Schneider

Asclepias fascicularis    Mexican whorled milkweed,  Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

Asclepias fascicularis
2018 Ron Vanderhoff
Asclepias fascicularis
2017 Gary McDonald
Asclepias fascicularis
2019 Ron Vanderhoff

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

FABACEAE

Astragalus curtipes
2010 Gary A. Monroe
Astragalus curtipes
2010 Gary A. Monroe
Astragalus curtipes
2012 Larry Blakely

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
2019 Ron Vanderhoff

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

BRASSICACEAE

Athysanus pusillus
2008 Keir Morse
Athysanus pusillus
2019 Adam Chasey
Athysanus pusillus
2018 David popp

Atriplex prostrata    Fat-hen
non-native
Annual herb

CHENOPODIACEAE

Atriplex prostrata
2012 Robert Sikora
Atriplex prostrata
2004 Bob Huettmann
Atriplex prostrata
2018 Ron Vanderhoff

Atriplex semibaccata    Australian saltbush
invasive non-native
Perennial herb

CHENOPODIACEAE

Atriplex semibaccata
2007 Neal Kramer
Atriplex semibaccata
2014 Neal Kramer
Atriplex semibaccata
2018 Ron Vanderhoff

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

POACEAE

Avena barbata
2004 Carol W. Witham
Avena barbata
2009 Keir Morse
Avena barbata
2002 James B. Gratiot

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

POACEAE

Avena fatua
2008 Keir Morse
Avena fatua
2002 James B. Gratiot
Avena fatua
2008 Zoya Akulova

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

AZOLLACEAE

Azolla filiculoides
2018 Ron Vanderhoff
Azolla filiculoides
2018 Cynthia Powell
Azolla filiculoides
2011 Aaron Arthur

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
2018 Cynthia Powell
Baccharis pilularis
2019 Talila Golan
Baccharis pilularis
2008 Gary McDonald

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

ASTERACEAE

Baccharis salicifolia
2009 Neal Kramer
Baccharis salicifolia
2015 Jesse Rorabaugh
Baccharis salicifolia
2018 Ron Vanderhoff

Bellardia trixago    Mediterranean lineseed
invasive non-native
Annual herb

OROBANCHACEAE

Bellardia trixago
2007 Luigi Rignanese
Bellardia trixago
2010 John W. Wall
Bellardia trixago
2018 Miao Ling He

Bidens pilosa    Hairy beggarticks
non-native
Annual herb

ASTERACEAE

Bidens pilosa
2015 Richard Spellenberg
Bidens pilosa
2018 Ron Vanderhoff
Bidens pilosa
2018 Ron Vanderhoff

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

native
Perennial grasslike herb

CYPERACEAE

Bolboschoenus maritimus ssp. paludosus
2015 Keir Morse
Bolboschoenus maritimus ssp. paludosus
2011 Neal Kramer
Bolboschoenus maritimus ssp. paludosus
2011 Neal Kramer

Brachypodium hybridum   


Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
2011 Jorg & Mimi Fleige
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
2008 Neal Kramer
Brassica rapa
2018 Angelique Herman

Bromus berteroanus    Chilean chess
non-native
Annual grass

POACEAE

Bromus berteroanus
2006 Steve Matson
Bromus berteroanus
2006 Steve Matson
Bromus berteroanus
2006 Steve Matson

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

POACEAE

Bromus carinatus var. carinatus
2016 Richard Chasey
Bromus carinatus var. carinatus
2013 Jean Pawek
Bromus carinatus var. carinatus
2010 Neal Kramer

non-native
Annual, Perennial grass

POACEAE

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

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

POACEAE

Bromus diandrus
2009 Neal Kramer
Bromus diandrus
1995 Saint Mary's College of California
Bromus diandrus
2020 Julie A. Kierstead

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

POACEAE

Bromus hordeaceus
2006 Brent Miller
Bromus hordeaceus
2018 Gary McDonald
Bromus hordeaceus
2018 Gary McDonald

Bromus madritensis ssp. rubens    Foxtail brome,  Foxtail chess,  Foxtail grass
invasive non-native
Annual grass

POACEAE

Bromus madritensis ssp. rubens
2008 Thomas Stoughton
Bromus madritensis ssp. rubens
2004 Carol W. Witham
Bromus madritensis ssp. rubens
2005 Steve Matson

Bromus rubens    Foxtail brome,  Foxtail chess,  Foxtail grass
invasive non-native
Annual grass

POACEAE

Bromus rubens
2008 Thomas Stoughton
Bromus rubens
2004 Carol W. Witham
Bromus rubens
2005 Steve Matson

Calandrinia ciliata    Red maids
native
Annual herb

MONTIACEAE

Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2019 Ron Vanderhoff

Calandrinia menziesii    Red maids
native
Annual herb

MONTIACEAE

Calandrinia menziesii
2019 Ron Vanderhoff
Calandrinia menziesii
2019 Ron Vanderhoff
Calandrinia menziesii
2019 Ron Vanderhoff

Calibrachoa parviflora    Wild petunia
native
Annual herb

SOLANACEAE

Calibrachoa parviflora
2017 Ron Vanderhoff
Calibrachoa parviflora
2020 Ron Vanderhoff
Calibrachoa parviflora
2014 Keir Morse

Calochortus argillosus    Clay mariposa lily
native
Perennial herb (bulb)

LILIACEAE

Calochortus argillosus
2018 Gary McDonald
Calochortus argillosus
2018 Gary McDonald
Calochortus argillosus
2016 Daniel Neal

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

LILIACEAE

Calochortus clavatus var. clavatus
2020 David Wolfson
Calochortus clavatus var. clavatus
2011 Chris Winchell
Calochortus clavatus var. clavatus
2019 Marisa Persaud

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

LILIACEAE

Calochortus obispoensis
2016 Daniel Neal
Calochortus obispoensis
2018 Margarita Orlova
Calochortus obispoensis
2015 David Wolfson

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

CONVOLVULACEAE

Calystegia macrostegia ssp. cyclostegia
2013 Zoya Akulova
Calystegia macrostegia ssp. cyclostegia
2014 Wynn Anderson
Calystegia macrostegia ssp. cyclostegia
2014 Wynn Anderson

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

CONVOLVULACEAE

Calystegia subacaulis ssp. episcopalis
2020 David Wolfson
Calystegia subacaulis ssp. episcopalis
2011 Aaron E. Sims
Calystegia subacaulis ssp. episcopalis
2003 Yulan Tong

Cardamine californica    Bitter cress,  California toothwort, milk maids
native
Perennial herb

BRASSICACEAE

Cardamine californica
2019 Ron Vanderhoff
Cardamine californica
2018 Lynn Sweet
Cardamine californica
2019 Ron Vanderhoff

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus
2019 Gary McDonald
Carduus pycnocephalus
2008 Zoya Akulova
Carduus pycnocephalus
2006 Chris Wagner, SBNF

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

CYPERACEAE

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

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

CYPERACEAE

Carex serratodens
2020 Sara Timby
Carex serratodens
2009 Neal Kramer
Carex serratodens
2008 Keir Morse

Carpobrotus edulis    Hottentot fig,  Iceplant,  Sea fig
invasive non-native
Perennial herb

AIZOACEAE

Carpobrotus edulis
2008 Neal Kramer
Carpobrotus edulis
2017 Lisa Miller
Carpobrotus edulis
2012 Jon Hall

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

OROBANCHACEAE

Castilleja densiflora ssp. obispoensis
2011 CNPS, San Luis Obispo Chapter
Castilleja densiflora ssp. obispoensis
2011 Chris Winchell

Castilleja minor ssp. spiralis    Lesser indian paintbrush,  Lesser paintbrush
native
Annual herb

OROBANCHACEAE

Castilleja minor ssp. spiralis
2019 Ron Vanderhoff
Castilleja minor ssp. spiralis
2017 Diane Etchison
Castilleja minor ssp. spiralis
2017 Adam Chasey

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

POACEAE

Cenchrus clandestinus
2019 Cynthia Powell
Cenchrus clandestinus
2008 Neal Kramer
Cenchrus clandestinus
2017 Nick Graver

Cenchrus longisetus    Feathertop
invasive non-native
Perennial grass

POACEAE

Cenchrus longisetus
2018 Ron Vanderhoff
Cenchrus longisetus
2001 Tony Morosco
Cenchrus longisetus
2018 Steven Cognac

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

ASTERACEAE

Centaurea calcitrapa
2005 Luigi Rignanese
Centaurea calcitrapa
2019 MCOSD EDRR
Centaurea calcitrapa
2008 Jennifer Buck

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

ASTERACEAE

Centaurea melitensis
2019 Ron Vanderhoff
Centaurea melitensis
2012 Gary McDonald
Centaurea melitensis
2019 Arlee Montalvo

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

ASTERACEAE

Centaurea solstitialis
2004 Carol W. Witham
Centaurea solstitialis
2019 Arlee Montalvo
Centaurea solstitialis
2008 Luigi Rignanese

Centromadia parryi ssp. congdonii    Congdon's tarplant
native
Annual herb

ASTERACEAE

Centromadia parryi ssp. congdonii
2008 Robert E. Preston, Ph.D.
Centromadia parryi ssp. congdonii
2014 John Doyen
Centromadia parryi ssp. congdonii
2005 Erin McDermott

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

CARYOPHYLLACEAE

Cerastium glomeratum
2019 Diane Etchison
Cerastium glomeratum
2015 Chris Jaster
Cerastium glomeratum
2009 Barry Breckling

Chamaesyce maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

Chamaesyce maculata
2014 John Doyen
Chamaesyce maculata
2015 Barry Breckling
Chamaesyce maculata
2014 John Doyen

Chamaesyce serpens    Matted sandmat
non-native
Annual herb

EUPHORBIACEAE

Chamaesyce serpens
2018 Ron Vanderhoff
Chamaesyce serpens
2012 Neal Kramer
Chamaesyce serpens
2018 Ron Vanderhoff

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

CHENOPODIACEAE

Chenopodium album
2005 Louis-M. Landry
Chenopodium album
2008 Keir Morse
Chenopodium album
2005 Louis-M. Landry

Chenopodium murale    Nettle leaf goosefoot,  Sowbane
non-native
Annual herb

CHENOPODIACEAE

Chenopodium murale
2009 Zoya Akulova
Chenopodium murale
2004 Debra Valov
Chenopodium murale
2018 Ron Vanderhoff

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

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum
2015 Sharon King & Randy Aeschliman
Chlorogalum pomeridianum var. pomeridianum
2003 George Jackson
Chlorogalum pomeridianum var. pomeridianum
2018 Karen Scheuermann

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

POLYGONACEAE

Chorizanthe breweri
2016 Aaron Schusteff
Chorizanthe breweri
2008 Aaron Schusteff
Chorizanthe breweri
2016 Aaron Schusteff

Chorizanthe palmeri    Palmer's spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe palmeri
2014 John Doyen
Chorizanthe palmeri
2011 Chris Winchell
Chorizanthe palmeri
2013 John Doyen

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

Cichorium intybus
2019 Diane Etchison
Cichorium intybus
2015 Debra L. Cook
Cichorium intybus
2019 Chico Hiking Association

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

ASTERACEAE

Cirsium fontinale var. obispoense
2017 Cindy Roessler
Cirsium fontinale var. obispoense
2015 David Wolfson
Cirsium fontinale var. obispoense
2012 Lynn Robertson

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
2005 Christopher L. Christie
Cirsium vulgare
2016 Erik Larsen
Cirsium vulgare
2019 Gustavo Vasquez

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

MONTIACEAE

Claytonia perfoliata ssp. perfoliata
2018 Ken Lunders
Claytonia perfoliata ssp. perfoliata
2019 Chico Hiking Association
Claytonia perfoliata ssp. perfoliata
2019 Gary McDonald

Collinsia heterophylla    Purple chinese houses
native
Annual herb

PLANTAGINACEAE

Collinsia heterophylla
2019 Jacob Smith
Collinsia heterophylla
2019 David Greenberger
Collinsia heterophylla
2019 Jacob Smith

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
2008 Keir Morse
Conium maculatum
2016 Cynthia Powell
Conium maculatum
2019 Ron Vanderhoff

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

CONVOLVULACEAE

Convolvulus arvensis
2005 Steve Matson
Convolvulus arvensis
2018 Troy Dean Torres
Convolvulus arvensis
2019 Ron Vanderhoff

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
2018 Ron Vanderhoff
Corethrogyne filaginifolia
2019 Bonnie Nickel
Corethrogyne filaginifolia
2019 stephen rosenthal

Cornus sericea ssp. occidentalis    Western dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. occidentalis
2016 Neal Kramer
Cornus sericea ssp. occidentalis
2013 John Doyen
Cornus sericea ssp. occidentalis
2014 Zoya Akulova

Cortaderia jubata    Pampas grass,  Purple pampas grass
invasive non-native
Perennial grass

POACEAE

Cortaderia jubata
2008 Neal Kramer
Cortaderia jubata
2001 Tony Morosco
Cortaderia jubata
2017 Lynn Overtree

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

ASTERACEAE

Cotula coronopifolia
2016 Chris Leslie
Cotula coronopifolia
2018 Cynthia Powell
Cotula coronopifolia
2018 Bill Schmidt

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

CRASSULACEAE

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

Croton setiger    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Croton setiger
2018 Rachelle Gray
Croton setiger
2019 Robin Street-Morris
Croton setiger
2014 Richard Chasey

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

POACEAE

Crypsis schoenoides
2019 Ron Vanderhoff
Crypsis schoenoides
2017 Ron Vanderhoff
Crypsis schoenoides
2018 Ron Vanderhoff

Cryptantha clevelandii var. florosa    Coastal cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha clevelandii var. florosa
2011 Steve Matson
Cryptantha clevelandii var. florosa
2020 Ryan Carle
Cryptantha clevelandii var. florosa
2011 Steve Matson

Cuscuta californica var. californica    California dodder,  Chaparral dodder,  Short flowered dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta californica var. californica
2010 Vernon Smith
Cuscuta californica var. californica
2017 David popp
Cuscuta californica var. californica
2010 Neal Kramer

Cuscuta campestris    Field dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta campestris
2010 Vernon Smith
Cuscuta campestris
2017 Ron Vanderhoff
Cuscuta campestris
1999 Doreen L. Smith

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

POACEAE

Cynodon dactylon
2008 Keir Morse
Cynodon dactylon
2008 Keir Morse
Cynodon dactylon
2008 Zoya Akulova

Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

Cyperus eragrostis
2017 Gary McDonald
Cyperus eragrostis
2017 Gary McDonald
Cyperus eragrostis
2012 Neal Kramer

Cyperus involucratus    Umbrella plant,  Unbrella plant
non-native
Perennial grasslike herb

CYPERACEAE

Cyperus involucratus
2018 Rachelle Gray
Cyperus involucratus
2010 Moorea Biocode
Cyperus involucratus
2018 Rachelle Gray

Danthonia californica    California oatgrass
native
Perennial grass

POACEAE

Danthonia californica
2020 Sara Timby
Danthonia californica
2007 Steve Matson
Danthonia californica
2002 Bart and Susan Eisenberg

Datura stramonium    Jimson weed,  Jimsonweed
non-native
Annual herb

SOLANACEAE

Datura stramonium
2013 Neal Kramer
Datura stramonium
2004 Joseph Dougherty/ecology.org
Datura stramonium
2013 Neal Kramer

Deinandra fasciculata    Clustered tarweed
native
Annual herb

ASTERACEAE

Deinandra fasciculata
2013 Keir Morse
Deinandra fasciculata
2003 Michael Charters
Deinandra fasciculata
2017 Steve Matson

Deinandra increscens ssp. increscens    Grassland tarweed
native
Annual herb

ASTERACEAE

Deinandra increscens ssp. increscens
2011 George Williams
Deinandra increscens ssp. increscens
2003 Lynn Watson

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

RANUNCULACEAE

Delphinium parryi ssp. eastwoodiae
2003 Yulan Tong
Delphinium parryi ssp. eastwoodiae
2012 CNPS, San Luis Obispo Chapter
Delphinium parryi ssp. eastwoodiae
2012 CNPS, San Luis Obispo Chapter

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

Deschampsia danthonioides
2004 Carol W. Witham
Deschampsia danthonioides
2007 Carol W. Witham
Deschampsia danthonioides
2008 Keir Morse

Dichelostemma capitatum ssp. capitatum    Blue dicks,  Bluedicks,  Wild hyacinth
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum ssp. capitatum
2015 Diane Etchison
Dichelostemma capitatum ssp. capitatum
2010 Steven Thorsted
Dichelostemma capitatum ssp. capitatum
2019 Mary Conway

Dichondra micrantha    Asian ponysfoot
non-native
Perennial herb

CONVOLVULACEAE

Dichondra micrantha
2012 Dean Wm. Taylor, Ph.D.
Dichondra micrantha
2008 Luigi Rignanese
Dichondra micrantha
2012 Dean Wm. Taylor, Ph.D.

Digitaria sanguinalis    Hairy crabgrass
non-native
Annual grass

POACEAE

Digitaria sanguinalis
2005 Luigi Rignanese
Digitaria sanguinalis
2010 Louis-M. Landry
Digitaria sanguinalis
2009 Zoya Akulova

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

DIPSACACEAE

Dipsacus sativus
2019 Thomas Reyes
Dipsacus sativus
2018 Angelique Herman
Dipsacus sativus
2009 Barry Breckling

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

POACEAE

Distichlis spicata
2019 Ron Vanderhoff
Distichlis spicata
2019 Ron Vanderhoff
Distichlis spicata
2005 Steve Matson

Dittrichia graveolens    Stinkwort
invasive non-native
Annual herb

ASTERACEAE

Dittrichia graveolens
2008 Keir Morse
Dittrichia graveolens
2019 Andy Jones
Dittrichia graveolens
2017 Ron Vanderhoff

Dodecatheon clevelandii    Padre's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii
2013 Steven M Norris
Dodecatheon clevelandii
2013 Steven M Norris
Dodecatheon clevelandii
2013 Steven M Norris

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

CRASSULACEAE

Dudleya abramsii ssp. murina
2012 Terrence Gosliner
Dudleya abramsii ssp. murina
2019 David Greenberger
Dudleya abramsii ssp. murina
2011 Chris Winchell

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania ambrosioides
2008 Keir Morse
Dysphania ambrosioides
2008 Keir Morse
Dysphania ambrosioides
2013 Zoya Akulova

Echinochloa colona    Jungle rice
non-native
Annual grass

POACEAE

Echinochloa colona
2018 Ron Vanderhoff
Echinochloa colona
2018 Ron Vanderhoff
Echinochloa colona
2018 Ron Vanderhoff

Echinochloa crus-galli    Barnyard grass,  Japanese millet,  Watergrass
non-native
Annual grass

POACEAE

Echinochloa crus-galli
2003 George W. Hartwell
Echinochloa crus-galli
2008 Zoya Akulova
Echinochloa crus-galli
2011 Eric Wrubel/NPS

Eichhornia crassipes    Common water hyacinth
invasive non-native
Perennial herb

PONTEDERIACEAE

Eichhornia crassipes
2009 Barry Rice
Eichhornia crassipes
2018 Rachelle Gray
Eichhornia crassipes
2016 DigiBirdTrek CA

Elatine californica    California waterwort
native
Annual, Perennial herb

ELATINACEAE

Elatine californica
2003 Keir Morse
Elatine californica
2015 Vernon Smith
Elatine californica
2007 Neal Kramer

Eleocharis bella    Beautiful spikerush
native
Perennial grasslike herb

CYPERACEAE

Eleocharis bella
2013 Jake Ruygt
Eleocharis bella
2013 Jake Ruygt
Eleocharis bella
2003 Steve Matson

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

CYPERACEAE

Eleocharis macrostachya
2004 Carol W. Witham
Eleocharis macrostachya
2001 John Game
Eleocharis macrostachya
2019 Ron Vanderhoff

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

CYPERACEAE

Eleocharis parishii
2008 Keir Morse
Eleocharis parishii
2010 James M. Andre
Eleocharis parishii
2018 Rachelle Gray

Elymus condensatus    Giant wild rye
native
Perennial grass

POACEAE

Elymus condensatus
2011 Neal Kramer
Elymus condensatus
2010 Michael O'Brien
Elymus condensatus
2006 Adonis (Don) Tate

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

POACEAE

Elymus glaucus ssp. glaucus
2009 Keir Morse
Elymus glaucus ssp. glaucus
2008 Keir Morse
Elymus glaucus ssp. glaucus
2008 Keir Morse

Elymus multisetus    Big squirreltail grass
native
Perennial grass

POACEAE

Elymus multisetus
2006 Tom Annese
Elymus multisetus
2016 Ron Vanderhoff
Elymus multisetus
2006 Tom Annese

Elymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Elymus triticoides
2018 Rachelle Gray
Elymus triticoides
2018 Rachelle Gray
Elymus triticoides
2018 Ron Vanderhoff

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

ONAGRACEAE

Epilobium brachycarpum
2016 Ron Vanderhoff
Epilobium brachycarpum
2016 Keir Morse
Epilobium brachycarpum
2018 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
2007 Neal Kramer
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 Ron Vanderhoff
Epilobium ciliatum ssp. ciliatum
2019 Gary McDonald

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

ONAGRACEAE

Epilobium densiflorum
2013 Debra L. Cook
Epilobium densiflorum
2009 Ron Wolf
Epilobium densiflorum
2015 Neal Kramer

Equisetum hyemale ssp. affine    Giant scouring rush
native
Fern

EQUISETACEAE

Equisetum hyemale ssp. affine
2008 Keir Morse
Equisetum hyemale ssp. affine
2012 Neal Kramer
Equisetum hyemale ssp. affine
2008 Neal Kramer

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

EQUISETACEAE

Equisetum telmateia ssp. braunii
2008 Zoya Akulova
Equisetum telmateia ssp. braunii
2008 Neal Kramer
Equisetum telmateia ssp. braunii
2015 Ron Vanderhoff

Eragrostis cilianensis    Stinkgrass
non-native
Annual grass

POACEAE

Eragrostis cilianensis
2012 Keir Morse
Eragrostis cilianensis
2005 Luigi Rignanese
Eragrostis cilianensis
2004 Laura Ann Eliassen

native
Annual grass

POACEAE

Eragrostis pectinacea var. pectinacea
2007 Steve Matson
Eragrostis pectinacea var. pectinacea
2007 Steve Matson
Eragrostis pectinacea var. pectinacea
2007 Steve Matson

Erigeron bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Erigeron bonariensis
2007 Luigi Rignanese
Erigeron bonariensis
2008 Jorg Fleige
Erigeron bonariensis
2009 Neal Kramer

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

Erigeron canadensis
2005 Luigi Rignanese
Erigeron canadensis
2018 Matthew Chaney
Erigeron canadensis
2016 John Doyen

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

ASTERACEAE

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

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

GERANIACEAE

Erodium botrys
2014 Bryan Derr
Erodium botrys
2012 Neal Kramer
Erodium botrys
2014 Keir Morse

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

GERANIACEAE

Erodium brachycarpum
2018 James Bailey
Erodium brachycarpum
2018 John Doyen
Erodium brachycarpum
2016 John Doyen

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

GERANIACEAE

Erodium cicutarium
2016 Keir Morse
Erodium cicutarium
2020 Julia Markey
Erodium cicutarium
2019 Diane Etchison

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

GERANIACEAE

Erodium moschatum
2012 Neal Kramer
Erodium moschatum
2018 Ron Vanderhoff
Erodium moschatum
2007 Luigi Rignanese

Eryngium aristulatum var. hooveri    Hoover's button celery,  Hoover's eryngo
native
Annual, Perennial herb

APIACEAE

Eryngium aristulatum var. hooveri
2011 Aaron Arthur
Eryngium aristulatum var. hooveri
2014 Maya Goklany
Eryngium aristulatum var. hooveri
2010 Chris Winchell

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

APIACEAE

Eryngium armatum
2009 Neal Kramer
Eryngium armatum
2006 Steve Matson
Eryngium armatum
2006 Steve Matson

native
Annual herb

PHRYMACEAE


native
Annual herb

PHRYMACEAE

Erythranthe grandis
2019 Ken Hickman

Erythranthe microphylla    Small leaved monkeyflower
native
Annual herb

PHRYMACEAE

Erythranthe microphylla
2014 Garth Wadsworth
Erythranthe microphylla
2019 Susan McDougall
Erythranthe microphylla
2020 Belinda Lo

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica
2014 Zoya Akulova
Eschscholzia californica
2009 Barry Rice
Eschscholzia californica
2019 Cynthia Powell

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

MYRTACEAE

Eucalyptus globulus
2013 Zoya Akulova
Eucalyptus globulus
2008 Neal Kramer
Eucalyptus globulus
2017 Zoya Akulova

Euphorbia maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia maculata
2014 John Doyen
Euphorbia maculata
2015 Barry Breckling
Euphorbia maculata
2014 John Doyen

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
2010 Neal Kramer
Euphorbia peplus
2006 Steve Matson
Euphorbia peplus
2005 Luigi Rignanese

Euphorbia serpens    Matted sandmat
non-native
Annual herb

EUPHORBIACEAE

Euphorbia serpens
2018 Ron Vanderhoff
Euphorbia serpens
2012 Neal Kramer
Euphorbia serpens
2018 Ron Vanderhoff

Euphorbia spathulata    Reticulate seeded spurge,  Warty spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia spathulata
2014 Neal Kramer
Euphorbia spathulata
2015 John Doyen
Euphorbia spathulata
2008 Keir Morse

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

POACEAE

Festuca arundinacea
2008 Keir Morse
Festuca arundinacea
2008 Keir Morse
Festuca arundinacea
2020 Thomas Reyes

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

Festuca bromoides
2008 Keir Morse
Festuca bromoides
2012 Aaron Arthur
Festuca bromoides
2012 Robert Steers/NPS

Festuca microstachys    Small fescue
native
Annual grass

POACEAE

Festuca microstachys
2008 Keir Morse
Festuca microstachys
2004 Robert E. Preston, Ph.D.
Festuca microstachys
2011 Steve Matson

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Festuca myuros
2015 Gary McDonald
Festuca myuros
2013 Al Keuter
Festuca myuros
2013 Al Keuter

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

POACEAE

Festuca perennis
2004 Carol W. Witham
Festuca perennis
2018 MCOSD EDRR
Festuca perennis
2003 James B. Gratiot

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

APIACEAE

Foeniculum vulgare
2019 Nicole Leatherman
Foeniculum vulgare
2019 Ron Vanderhoff
Foeniculum vulgare
2015 Neal Kramer

Frangula californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. californica
2019 Mary Conway
Frangula californica ssp. californica
2017 Gary McDonald
Frangula californica ssp. californica
2019 Mary Conway

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

LILIACEAE

Fritillaria biflora var. biflora
2008 Andrew Borcher
Fritillaria biflora var. biflora
2020 David Greenberger
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
2008 Gary McDonald
Galium aparine
2020 Ron Vanderhoff

Genista monspessulana    French broom
invasive non-native
Shrub

FABACEAE

Genista monspessulana
2019 Ron Vanderhoff
Genista monspessulana
2019 Ron Vanderhoff
Genista monspessulana
2019 Ron Vanderhoff

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

GERANIACEAE

Geranium dissectum
2003 Lynn Watson
Geranium dissectum
2015 Chris Jaster
Geranium dissectum
2019 Randy Huey

native
Annual herb

POLEMONIACEAE

Gilia achilleifolia ssp. achilleifolia
2009 Keir Morse
Gilia achilleifolia ssp. achilleifolia
2003 Christopher L. Christie
Gilia achilleifolia ssp. achilleifolia
2018 Steven Perry

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

ASTERACEAE

Hazardia squarrosa var. squarrosa
2011 Neal Kramer
Hazardia squarrosa var. squarrosa
2011 Neal Kramer
Hazardia squarrosa var. squarrosa
2011 Neal Kramer

Hedypnois rhagadioloides    Crete weed
non-native
Annual herb

ASTERACEAE

Hedypnois rhagadioloides
2012 Michael Perlmutter
Hedypnois rhagadioloides
2014 Ramona Robison
Hedypnois rhagadioloides
2017 Thomas Reyes

Helenium bigelovii    Bigelow's sneezeweed,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium bigelovii
2019 Bryant Baker
Helenium bigelovii
2016 Julie Kierstead Nelson
Helenium bigelovii
2014 James Gonsman

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

BORAGINACEAE

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
2019 Rachelle Gray

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

ASTERACEAE

Hemizonia congesta ssp. luzulifolia
2009 Barry Breckling
Hemizonia congesta ssp. luzulifolia
2007 Neal Kramer
Hemizonia congesta ssp. luzulifolia
2016 R. Adam Chasey

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

ASTERACEAE

Hesperevax sparsiflora var. sparsiflora
2013 Robert Sikora
Hesperevax sparsiflora var. sparsiflora
2015 Keir Morse
Hesperevax sparsiflora var. sparsiflora
2013 Jake Ruygt

Heterotheca grandiflora    Telegraph weed,  Telegraphweed
native
Annual, Perennial herb

ASTERACEAE

Heterotheca grandiflora
2001 Jeff Abbas
Heterotheca grandiflora
2014 Robert Sikora
Heterotheca grandiflora
2017 Hilary Mills

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
2008 Neal Kramer

native
Perennial grass

POACEAE

Hordeum brachyantherum ssp. brachyantherum
2011 Barry Breckling
Hordeum brachyantherum ssp. brachyantherum
2018 Emily Allen
Hordeum brachyantherum ssp. brachyantherum
2015 Steve Matson

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

POACEAE

Hordeum marinum ssp. gussoneanum
2009 Neal Kramer
Hordeum marinum ssp. gussoneanum
2002 Ann Dennis
Hordeum marinum ssp. gussoneanum
2004 Carol W. Witham

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

POACEAE

Hordeum murinum ssp. leporinum
2009 Keir Morse
Hordeum murinum ssp. leporinum
2010 Neal Kramer
Hordeum murinum ssp. leporinum
2008 Zoya Akulova

Hydrocotyle verticillata    Whorled marsh pennywort,  Whorled marshpennywort
native
Perennial herb

ARALIACEAE

Hydrocotyle verticillata
2010 Aaron Arthur
Hydrocotyle verticillata
2018 Ron Vanderhoff
Hydrocotyle verticillata
2015 Steve Matson

Hypochaeris glabra    Smooth cat's ear
invasive non-native
Annual herb

ASTERACEAE

Hypochaeris glabra
2005 Steve Matson
Hypochaeris glabra
2005 Steve Matson
Hypochaeris glabra
2005 Steve Matson

native
Annual grasslike herb

JUNCACEAE

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

Juncus lescurii    Dune rush
native
Perennial grasslike herb

JUNCACEAE

Juncus lescurii
2007 Neal Kramer
Juncus lescurii
2004 Steve Matson
Juncus lescurii
2004 Steve Matson

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

JUNCACEAE

Juncus occidentalis
2007 Neal Kramer
Juncus occidentalis
2015 Neal Kramer
Juncus occidentalis
2007 Neal Kramer

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

JUNCACEAE

Juncus phaeocephalus var. phaeocephalus
2019 Dee Shea Himes
Juncus phaeocephalus var. phaeocephalus
2007 Neal Kramer
Juncus phaeocephalus var. phaeocephalus
2009 Keir Morse

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

PLANTAGINACEAE

Kickxia elatine
2018 Ron Vanderhoff
Kickxia elatine
2020 joaquin hale
Kickxia elatine
2020 joaquin hale

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2003 Bart and Susan Eisenberg
Koeleria macrantha
2011 RT Hawke
Koeleria macrantha
2020 Julie A. Kierstead

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

ASTERACEAE

Lactuca saligna
2019 David popp
Lactuca saligna
2012 Vernon Smith
Lactuca saligna
2008 Jorg Fleige

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

ASTERACEAE

Lactuca serriola
2017 Gary McDonald
Lactuca serriola
2017 Diane Etchison
Lactuca serriola
2020 Ryan Carle

Laennecia coulteri    Coulter's horseweed
native
Annual herb

ASTERACEAE

Laennecia coulteri
2019 Douglas Gordon-Blackwood
Laennecia coulteri
2018 Ken Hickman
Laennecia coulteri
2018 Richard Spellenberg

Lagophylla ramosissima    Branched lagophylla,  Common hareleaf
native
Annual herb

ASTERACEAE

Lagophylla ramosissima
1996 Doreen L. Smith
Lagophylla ramosissima
2011 Chris Winchell
Lagophylla ramosissima
2005 Michael Charters

Lamarckia aurea    Goldentop grass
non-native
Annual grass

POACEAE

Lamarckia aurea
2006 Luigi Rignanese
Lamarckia aurea
2019 Ron Vanderhoff
Lamarckia aurea
2007 Neal Kramer

Lasthenia glaberrima    Smooth goldfields
native
Annual herb

ASTERACEAE

Lasthenia glaberrima
2004 Carol W. Witham
Lasthenia glaberrima
2020 Matt Berger
Lasthenia glaberrima
2020 R.A. Chasey

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

Lasthenia gracilis
2014 Keir Morse
Lasthenia gracilis
2010 Barry Breckling
Lasthenia gracilis
2017 John Doyen

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

FABACEAE

Lathyrus latifolius
2019 Julie Kierstead Nelson
Lathyrus latifolius
2008 Keir Morse
Lathyrus latifolius
2005 Dr. Amadej Trnkoczy

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

FABACEAE

Lathyrus odoratus
2013 Jake Ruygt
Lathyrus odoratus
2017 danielle noe
Lathyrus odoratus
1995 Saint Mary's College of California

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
2019 Ron Vanderhoff
Lathyrus vestitus var. vestitus
2015 Chris Jaster

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

ASTERACEAE

Layia jonesii
2011 Chris Winchell
Layia jonesii
1980 California Native Plant Society
Layia jonesii
2011 Chris Winchell

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 pinnatifidum    Featherleaf pepperweed,  Wayside pepper grass
non-native
Annual, Perennial herb

BRASSICACEAE

Lepidium pinnatifidum
1982 Robert E. Preston, Ph.D.
Lepidium pinnatifidum
2010 Zoya Akulova
Lepidium pinnatifidum
2010 Zoya Akulova

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

BRASSICACEAE

Lepidium strictum
2019 Neal Kramer
Lepidium strictum
2019 Neal Kramer
Lepidium strictum
2008 Keir Morse

Leptochloa fusca ssp. fascicularis    Bearded sprangletop
native
Annual grass

POACEAE

Leptochloa fusca ssp. fascicularis
2007 Tom Cochrane
Leptochloa fusca ssp. fascicularis
2010 Zoya Akulova
Leptochloa fusca ssp. fascicularis
2007 Tom Cochrane

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Leptosiphon parviflorus
2019 Ken Lunders
Leptosiphon parviflorus
2020 Ron Vanderhoff
Leptosiphon parviflorus
2016 Ron Vanderhoff

Lobularia maritima    Sweet alyssum
invasive non-native
Perennial herb

BRASSICACEAE

Lobularia maritima
2000 Salvatore Zimmitti
Lobularia maritima
2015 Chris Jaster
Lobularia maritima
2017 James Bailey

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Logfia gallica
2013 Keir Morse
Logfia gallica
2013 Keir Morse
Logfia gallica
2017 Barbara Boethling

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

APIACEAE

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

Lomatium parvifolium    Coastal biscuitroot,  Small leaved lomatium
native
Perennial herb

APIACEAE

Lomatium parvifolium
2004 Aaron Schusteff
Lomatium parvifolium
2013 John Doyen
Lomatium parvifolium
2011 Chris Winchell

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

APIACEAE

Lomatium utriculatum
2007 Lynn Watson
Lomatium utriculatum
2015 Debra L. Cook
Lomatium utriculatum
2015 James Gonsman

Lonicera japonica    Japanese honeysuckle
non-native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera japonica
2009 Neal Kramer
Lonicera japonica
2018 michelle peruzzi
Lonicera japonica
2016 Keir Morse

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

FABACEAE

Lotus corniculatus
2005 Louis-M. Landry
Lotus corniculatus
2019 Nathan Taxel
Lotus corniculatus
2005 Dr. Amadej Trnkoczy

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

FABACEAE

Lupinus bicolor
2019 Gary McDonald
Lupinus bicolor
2018 Stacie Wolny
Lupinus bicolor
2019 Ron Vanderhoff

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

FABACEAE

Lupinus microcarpus var. densiflorus
2018 Eliezer Margolis
Lupinus microcarpus var. densiflorus
2007 Neal Kramer
Lupinus microcarpus var. densiflorus
2005 Brent Miller

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
2019 Phyllis Fitzsimons
Lupinus nanus
2019 Mary Conway
Lupinus nanus
2019 Phyllis Fitzsimons

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

FABACEAE

Lupinus truncatus
2006 Adonis (Don) Tate
Lupinus truncatus
2006 Adonis (Don) Tate
Lupinus truncatus
2008 Keir Morse

Lysimachia arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Lysimachia arvensis
2017 B.J. Dion
Lysimachia arvensis
2009 Keir Morse
Lysimachia arvensis
2019 Barbara Boethling

Lythrum californicum    California loosestrife,  Common loosestrife
native
Perennial herb

LYTHRACEAE

Lythrum californicum
2017 Fred Melgert / Carla Hoegen
Lythrum californicum
2017 David Wolfson
Lythrum californicum
2019 Jennifer Mo

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

LYTHRACEAE

Lythrum hyssopifolia
2019 Jennifer Mo
Lythrum hyssopifolia
2016 Andrew Longman
Lythrum hyssopifolia
2016 Andrew Longman

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

ASTERACEAE

Madia sativa
2013 Ron Vanderhoff
Madia sativa
2008 Keir Morse
Madia sativa
2011 Neal Kramer

Malacothrix clevelandii    Cleveland's dandelion,  Cleveland's desertdandelion,  Cleveland's malacothrix
native
Annual herb

ASTERACEAE

Malacothrix clevelandii
2008 Keir Morse
Malacothrix clevelandii
2011 Neal Kramer
Malacothrix clevelandii
2009 Robert Steers

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

Malva nicaeensis
2015 Mike Morales
Malva nicaeensis
2008 Jorg Fleige
Malva nicaeensis
2009 Barry Breckling

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

Malva parviflora
2019 Sean Carey
Malva parviflora
2012 Neal Kramer
Malva parviflora
2015 Jesse Rorabaugh

Malva pseudolavatera    Cretan mallow
non-native
Shrub

MALVACEAE

Malva pseudolavatera
2007 Neal Kramer
Malva pseudolavatera
2014 Steve Matson
Malva pseudolavatera
2006 Vince Scheidt

Malvella leprosa    Alkali mallow
native
Perennial herb

MALVACEAE

Malvella leprosa
2019 Diane Etchison
Malvella leprosa
2004 James M. Andre
Malvella leprosa
2019 Bonnie Nickel

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2019 Diane Etchison
Matricaria discoidea
2019 Chico Hiking Association
Matricaria discoidea
2008 Thomas Stoughton

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

FABACEAE

Medicago polymorpha
2008 Steve Matson
Medicago polymorpha
2003 Michael Charters
Medicago polymorpha
2004 Carol W. Witham

Melica californica    California melicgrass
native
Perennial grass

POACEAE

Melica californica
2017 Neal Kramer
Melica californica
2011 Barry Breckling
Melica californica
2008 Zoya Akulova

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

POACEAE

Melica imperfecta
2009 Keir Morse
Melica imperfecta
2014 Steve Matson
Melica imperfecta
2019 Ron Vanderhoff

Melilotus albus    White sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus albus
2008 Keir Morse
Melilotus albus
2020 Aaron Echols
Melilotus albus
2020 Julia Markey

Melilotus indicus    Annual yellow sweetclover
non-native
Annual herb

FABACEAE

Melilotus indicus
2009 Barry Breckling
Melilotus indicus
2005 Cheri Miller
Melilotus indicus
2009 Neal Kramer

Mentha canadensis    Wild mint
native
Perennial herb

LAMIACEAE

Mentha canadensis
2013 Aaron Arthur
Mentha canadensis
2018 joaquin hale
Mentha canadensis
2015 Barry Breckling

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

ASTERACEAE

Microseris douglasii ssp. douglasii
2019 John Rawlings
Microseris douglasii ssp. douglasii
2008 Keir Morse
Microseris douglasii ssp. douglasii
2012 Neal Kramer

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

ASTERACEAE

Microseris douglasii ssp. tenella
2011 Zoya Akulova
Microseris douglasii ssp. tenella
2004 Carol W. Witham
Microseris douglasii ssp. tenella
2004 Carol W. Witham

Modiola caroliniana    Carolina bristle mallow,  Carolina bristlemallow
non-native
Perennial herb

MALVACEAE

Modiola caroliniana
2009 Jorg Fleige
Modiola caroliniana
2020 Ron Vanderhoff
Modiola caroliniana
2020 Ron Vanderhoff

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

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

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

Navarretia squarrosa
2019 Marisa Persaud
Navarretia squarrosa
2019 Patrick Furtado
Navarretia squarrosa
2007 Neal Kramer

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

OXALIDACEAE

Oxalis pes-caprae
2019 Gary McDonald
Oxalis pes-caprae
2019 Randy Huey
Oxalis pes-caprae
2018 Ron Vanderhoff

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

POACEAE

Parapholis incurva
2008 Zoya Akulova
Parapholis incurva
2008 Zoya Akulova
Parapholis incurva
2011 Neal Kramer

Paspalum dilatatum    Dallis grass,  Dallisgrass
non-native
Perennial grass

POACEAE

Paspalum dilatatum
2018 Ron Vanderhoff
Paspalum dilatatum
2006 Steven Thorsted
Paspalum dilatatum
2009 Barry Rice

Paspalum distichum    Knot grass,  Knotgrass
native
Perennial grass

POACEAE

Paspalum distichum
2011 Zoya Akulova
Paspalum distichum
2016 Neal Kramer
Paspalum distichum
2017 Ron Vanderhoff

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

Pellaea andromedifolia
2015 James Gonsman
Pellaea andromedifolia
2008 Keir Morse
Pellaea andromedifolia
2018 Gary McDonald

Perideridia pringlei    Adobe yampah
native
Perennial herb

APIACEAE

Perideridia pringlei
2012 Neal Kramer
Perideridia pringlei
2019 Angelique Herman
Perideridia pringlei
2019 Richard Spjut

Persicaria amphibia    Water smartweed
native
Perennial herb (aquatic)

POLYGONACEAE

Persicaria amphibia
2019 Ken Hickman
Persicaria amphibia
2009 Ron Vanderhoff
Persicaria amphibia
2017 Ron Vanderhoff

Persicaria lapathifolia    Common knotweed
native
Annual herb

POLYGONACEAE

Persicaria lapathifolia
2018 Ron Vanderhoff
Persicaria lapathifolia
2016 Barbara Boethling
Persicaria lapathifolia
2018 Ron Vanderhoff

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

BORAGINACEAE

Phacelia distans
2020 Ron Vanderhoff
Phacelia distans
2019 Diane Etchison
Phacelia distans
2008 Keir Morse

Phacelia imbricata ssp. imbricata    Imbricate phacelia
native
Perennial herb

BORAGINACEAE

Phacelia imbricata ssp. imbricata
2008 Neal Kramer
Phacelia imbricata ssp. imbricata
2020 R.A. Chasey
Phacelia imbricata ssp. imbricata
2014 James Gonsman

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

POACEAE

Phalaris aquatica
2019 James Bailey
Phalaris aquatica
2019 James Bailey
Phalaris aquatica
2017 James Bailey

Phalaris paradoxa    Hood canarygrass
non-native
Annual grass

POACEAE

Phalaris paradoxa
2004 Carol W. Witham
Phalaris paradoxa
2007 Luigi Rignanese
Phalaris paradoxa
2007 Luigi Rignanese

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

VERBENACEAE

Phyla nodiflora
2018 Ron Vanderhoff
Phyla nodiflora
2019 R.A. Chasey
Phyla nodiflora
2016 DigiBirdTrek CA

Plantago erecta    California plantain,  Dotseed plantain,  Foothill plantain
native
Annual herb

PLANTAGINACEAE

Plantago erecta
2007 Carol W. Witham
Plantago erecta
2008 Margo Bors
Plantago erecta
2008 Neal Kramer

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

PLANTAGINACEAE

Plantago lanceolata
2017 Gary McDonald
Plantago lanceolata
2007 Neal Kramer
Plantago lanceolata
2019 Diane Etchison

Platanus racemosa    California sycamore,  Western sycamore
native
Tree

PLATANACEAE

Platanus racemosa
2012 Neal Kramer
Platanus racemosa
2018 Ron Vanderhoff
Platanus racemosa
2019 Rachelle Gray

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
2019 Matt Berger
Platystemon californicus
2018 Karen Scheuermann
Platystemon californicus
2007 Neal Kramer

Pleuropogon californicus var. californicus    Annual semaphoregrass
native
Perennial grass (rhizomatous)

POACEAE

Pleuropogon californicus var. californicus
2020 Julian Geoghegan
Pleuropogon californicus var. californicus
2013 Aaron Arthur
Pleuropogon californicus var. californicus
2016 Andrew Longman

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

POACEAE

Poa annua
2004 Carol W. Witham
Poa annua
2010 Neal Kramer
Poa annua
2011 Ryan Batten

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

POACEAE

Poa secunda ssp. secunda
2019 Belinda Lo
Poa secunda ssp. secunda
2019 Belinda Lo
Poa secunda ssp. secunda
2019 Belinda Lo

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

LAMIACEAE

Pogogyne douglasii
2004 Carol W. Witham
Pogogyne douglasii
2011 Steven Perry
Pogogyne douglasii
2013 John Doyen

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

CARYOPHYLLACEAE

Polycarpon depressum
2011 Neal Kramer
Polycarpon depressum
2013 Keir Morse
Polycarpon depressum
2013 Keir Morse

Polygonum aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare
2016 John Doyen
Polygonum aviculare
2008 Keir Morse
Polygonum aviculare
2010 Lee Dittmann

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
2013 Neal Kramer
Polypodium californicum
2018 Chico Hiking Association
Polypodium californicum
2015 Keir Morse

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

POACEAE

Polypogon interruptus
2002 Dean Wm. Taylor
Polypogon interruptus
2009 Zoya Akulova
Polypogon interruptus
2017 Ron Vanderhoff

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

POACEAE

Polypogon monspeliensis
2007 Neal Kramer
Polypogon monspeliensis
2006 Steve Matson
Polypogon monspeliensis
2006 Luigi Rignanese

Polypogon viridis    Water beard grass
non-native
Perennial grass

POACEAE

Polypogon viridis
2013 Al Keuter
Polypogon viridis
2013 Al Keuter
Polypogon viridis
2010 Luigi Rignanese

Populus fremontii ssp. fremontii    Fremont cottonwood
native
Tree

SALICACEAE

Populus fremontii ssp. fremontii
2003 Michael Charters
Populus fremontii ssp. fremontii
2020 Susan McDougall
Populus fremontii ssp. fremontii
2020 Susan McDougall

Portulaca oleracea    Common purslane,  Little hogweed,  Purslane
non-native
Annual herb

PORTULACACEAE

Portulaca oleracea
2008 Keir Morse
Portulaca oleracea
2006 Jeff Abbas
Portulaca oleracea
2004 James M. Andre

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

POTAMOGETONACEAE

Potamogeton nodosus
2007 Neal Kramer
Potamogeton nodosus
2013 Jake Ruygt
Potamogeton nodosus
2007 Neal Kramer

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

ROSACEAE

Potentilla anserina ssp. pacifica
2007 Neal Kramer
Potentilla anserina ssp. pacifica
2015 James Gonsman
Potentilla anserina ssp. pacifica
2014 James Gonsman

Pseudognaphalium luteoalbum    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Pseudognaphalium luteoalbum
2008 Gary McDonald
Pseudognaphalium luteoalbum
2008 Jorg Fleige
Pseudognaphalium luteoalbum
2016 Richard Spellenberg

Pseudognaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

Pseudognaphalium stramineum
2020 Ryan Carle
Pseudognaphalium stramineum
2017 Diane Etchison
Pseudognaphalium stramineum
2009 Neal Kramer

Psilocarphus tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus
2012 Neal Kramer
Psilocarphus tenellus
2008 Keir Morse
Psilocarphus tenellus
2002 Dean Wm. Taylor

Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

Pterostegia drymarioides
2020 Dick Rawson
Pterostegia drymarioides
2018 Ron Vanderhoff
Pterostegia drymarioides
2020 Dick Rawson

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

FAGACEAE

Quercus agrifolia var. agrifolia
2002 Doreen L. Smith
Quercus agrifolia var. agrifolia
2019 Susan McDougall
Quercus agrifolia var. agrifolia
2020 Susan McDougall

Quercus durata var. durata    Leather oak
native
Shrub

FAGACEAE

Quercus durata var. durata
2004 David A. Tharp
Quercus durata var. durata
2019 Susan McDougall
Quercus durata var. durata
2019 Susan McDougall

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus californicus
2019 Diane Etchison
Ranunculus californicus
2020 Mitchell Coleman
Ranunculus californicus
2019 Diane Etchison

Raphanus sativus    Cultivated radish,  Jointed charlock,  Wild radish
invasive non-native
Annual, Biennial herb

BRASSICACEAE

Raphanus sativus
2017 Lisa Miller
Raphanus sativus
2004 Carol W. Witham
Raphanus sativus
2008 Thomas Stoughton

Ricinus communis    Castor bean,  Castorbean
invasive non-native
Shrub

EUPHORBIACEAE

Ricinus communis
2017 b potts
Ricinus communis
2013 Keir Morse
Ricinus communis
2017 Henry DiRocco

Rorippa palustris ssp. palustris    Bog yellowcress
native
Annual, Perennial herb

BRASSICACEAE

Rorippa palustris ssp. palustris
2011 Jean Pawek
Rorippa palustris ssp. palustris
2009 Neal Kramer
Rorippa palustris ssp. palustris
2011 Barry Breckling

Rubus ursinus    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus ursinus
2008 Keir Morse
Rubus ursinus
2008 Keir Morse
Rubus ursinus
2007 Neal Kramer

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella
2007 Dr. Mark S. Brunell
Rumex acetosella
2015 Richard Chasey
Rumex acetosella
2017 Gary McDonald

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

POLYGONACEAE

Rumex conglomeratus
2013 Robert Steers/NPS
Rumex conglomeratus
2010 Phil Pullen
Rumex conglomeratus
2008 Keir Morse

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
2018 b potts

Rumex fueginus    Golden dock
native
Annual, Perennial herb

POLYGONACEAE

Rumex fueginus
2008 Jorg Fleige
Rumex fueginus
2014 John Doyen
Rumex fueginus
2009 Doreen L. Smith

Rumex kerneri    Kerner's dock
non-native
Perennial herb

POLYGONACEAE

Rumex kerneri
2007 Neal Kramer
Rumex kerneri
2011 Neal Kramer

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

POLYGONACEAE

Rumex salicifolius var. salicifolius
2019 Diane Etchison
Rumex salicifolius var. salicifolius
2019 Diane Etchison
Rumex salicifolius var. salicifolius
2019 Diane Etchison

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

Salix laevigata
2018 Angelique Herman
Salix laevigata
2020 Susan McDougall
Salix laevigata
2019 Barbara Brydolf

Salix lasiandra var. lasiandra    Pacific willow
native
Tree

SALICACEAE

Salix lasiandra var. lasiandra
2007 Neal Kramer
Salix lasiandra var. lasiandra
2015 Margo Bors
Salix lasiandra var. lasiandra
2014 Zoya Akulova

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

Salix lasiolepis
2008 Keir Morse
Salix lasiolepis
2012 Zoya Akulova
Salix lasiolepis
2016 Zoya Akulova

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

CHENOPODIACEAE

Salsola tragus
2016 John Doyen
Salsola tragus
2017 Ron Vanderhoff
Salsola tragus
2016 Steven Thorsted

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

Salvia columbariae
2020 Ron Vanderhoff
Salvia columbariae
2019 Gary McDonald
Salvia columbariae
2019 Gary McDonald

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

APIACEAE

Sanicula arguta
2006 Steve Matson
Sanicula arguta
2009 Robert Steers
Sanicula arguta
2017 Diane Etchison

Sanicula maritima    Adobe sanicle,  Adobe snakeroot
native
Perennial herb

APIACEAE

Sanicula maritima
2013 David Wolfson
Sanicula maritima
2012 Wendy Fisher
Sanicula maritima
2014 Chris Winchell

Scandix pecten-veneris    Shepherd's needle,  Shepherdsneedle,  Venus' needle
non-native
Annual herb, Vine

APIACEAE

Scandix pecten-veneris
2006 Steve Matson
Scandix pecten-veneris
2018 Stacie Wolny
Scandix pecten-veneris
2018 Stacie Wolny

native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus acutus var. occidentalis
2019 Steve Matson
Schoenoplectus acutus var. occidentalis
2013 Neal Kramer
Schoenoplectus acutus var. occidentalis
2015 Steve Matson

Schoenoplectus californicus    California bulrush
native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus californicus
2010 Steven Thorsted
Schoenoplectus californicus
2007 Neal Kramer
Schoenoplectus californicus
2020 Diane Etchison

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

CYPERACEAE

Scirpus microcarpus
2003 Steve Matson
Scirpus microcarpus
2011 Steven Perry
Scirpus microcarpus
2019 Julie Kierstead Nelson

Selaginella bigelovii    Bigelow's moss fern,  Bigelow's spike moss,  Bushy spikemoss
native
Fern (mosslike)

SELAGINELLACEAE

Selaginella bigelovii
2006 Steve Matson
Selaginella bigelovii
2013 Susan McDougall
Selaginella bigelovii
2015 Steven M Norris

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

ASTERACEAE

Senecio vulgaris
2005 Steve Matson
Senecio vulgaris
2019 Ron Vanderhoff
Senecio vulgaris
2020 Chico Hiking Association

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

CARYOPHYLLACEAE

Silene gallica
2017 Barbara Boethling
Silene gallica
2017 Gary McDonald
Silene gallica
2017 Gary McDonald

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

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 douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

Solanum douglasii
2003 Michael Charters
Solanum douglasii
2018 Debra L. Cook
Solanum douglasii
2017 Zoya Akulova

Solanum nigrum    Black nightshade
non-native
Annual herb

SOLANACEAE

Solanum nigrum
2020 Susan White
Solanum nigrum
2005 Dr. Amadej Trnkoczy
Solanum nigrum
2005 Dr. Amadej Trnkoczy

Solanum rostratum    Buffalo berry,  Buffalobur nightshade
non-native
Annual herb

SOLANACEAE

Solanum rostratum
2013 Debra L. Cook
Solanum rostratum
2019 Douglas Gordon-Blackwood
Solanum rostratum
1999 Larry Blakely

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

ASTERACEAE

Soliva sessilis
2007 Carol W. Witham
Soliva sessilis
2006 Steve Matson
Soliva sessilis
2010 Robert Steers/NPS

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

ASTERACEAE

Sonchus asper ssp. asper
2013 Debra L. Cook
Sonchus asper ssp. asper
2015 Robert Sikora
Sonchus asper ssp. asper
2019 Dean Taylor

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
2016 Andrew Longman

Sorghum bicolor    Sorghum
non-native
Annual grass

POACEAE

Sorghum bicolor
2019 Ron Vanderhoff
Sorghum bicolor
2016 Barbara Boethling
Sorghum bicolor
2014 Ron Vanderhoff

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis
2005 Steve Matson
Spergula arvensis
2020 Mary Conway
Spergula arvensis
2008 Keir Morse

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

CARYOPHYLLACEAE

Spergularia bocconi
2015 Debra L. Cook
Spergularia bocconi
2017 Abby Sirulnik
Spergularia bocconi
2004 Carol W. Witham

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

CARYOPHYLLACEAE

Spergularia macrotheca var. macrotheca
2008 Steve Matson
Spergularia macrotheca var. macrotheca
2007 Neal Kramer
Spergularia macrotheca var. macrotheca
2017 B.J. Dion

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

CARYOPHYLLACEAE

Spergularia rubra
2014 James Gonsman
Spergularia rubra
2014 Dee Warenycia
Spergularia rubra
2014 Richard Chasey

Sporobolus indicus    Smut grass,  Smutgrass
non-native
Perennial grass

POACEAE

Sporobolus indicus
2011 Steve Matson
Sporobolus indicus
2011 Steve Matson
Sporobolus indicus
2006 Adonis (Don) Tate

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

LAMIACEAE

Stachys ajugoides
2007 Neal Kramer
Stachys ajugoides
2004 Bob Huettmann
Stachys ajugoides
2006 Doreen L. Smith

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

LAMIACEAE

Stachys bullata
2018 Sheila Lodge
Stachys bullata
2020 Bryant Baker
Stachys bullata
2020 Ken Lunders

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

LAMIACEAE

Stachys pycnantha
2019 David Wolfson
Stachys pycnantha
2018 Julian Geoghegan
Stachys pycnantha
2011 Neal Kramer

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria media
2018 Gary McDonald
Stellaria media
2017 MCOSD EDRR
Stellaria media
2015 Diane Etchison

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

ASTERACEAE

Stephanomeria cichoriacea
2018 John Game
Stephanomeria cichoriacea
2011 Robert A. Hamilton
Stephanomeria cichoriacea
2018 Richard Rachman

Stipa lepida    Foothill needle grass
native
Perennial grass

POACEAE

Stipa lepida
2016 Andrew Longman
Stipa lepida
2017 Gary McDonald
Stipa lepida
2016 Andrew Longman

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

POACEAE

Stipa miliacea var. miliacea
2006 Luigi Rignanese
Stipa miliacea var. miliacea
2012 Tom Schweich
Stipa miliacea var. miliacea
2009 Keir Morse

Stipa pulchra    Purple needle grass
native
Perennial grass

POACEAE

Stipa pulchra
2018 Gary McDonald
Stipa pulchra
2019 Ron Vanderhoff
Stipa pulchra
2019 Ron Vanderhoff

native
Annual herb

BRASSICACEAE

Streptanthus glandulosus ssp. glandulosus
2008 Keir Morse
Streptanthus glandulosus ssp. glandulosus
2005 Aaron Schusteff
Streptanthus glandulosus ssp. glandulosus
2008 Keir Morse

Stuckenia pectinata    Sago pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Stuckenia pectinata
2018 Neal Kramer
Stuckenia pectinata
2018 Ron Vanderhoff
Stuckenia pectinata
2018 Ron Vanderhoff

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 subulatum    Eastern annual saltmarsh aster
native
Annual herb

ASTERACEAE

Symphyotrichum subulatum
2019 Ron Vanderhoff
Symphyotrichum subulatum
2019 Aaron Echols
Symphyotrichum subulatum
2018 Ron Vanderhoff

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

TAMARICACEAE

Tamarix ramosissima
2017 Barbara Boethling
Tamarix ramosissima
2000 Joe DiTomaso
Tamarix ramosissima
2000 Joe DiTomaso

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

ASTERACEAE

Taraxacum officinale
2001 Nick Kurzenko
Taraxacum officinale
2018 Chico Hiking Association
Taraxacum officinale
2019 Diane Etchison

Toxicodendron diversilobum    Poison oak,  Poisonoak
native
Vine, Shrub

ANACARDIACEAE

Toxicodendron diversilobum
2008 Gary McDonald
Toxicodendron diversilobum
2019 Randy Huey
Toxicodendron diversilobum
2008 Zoya Akulova

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon porrifolius
2019 Julie dinsdale
Tragopogon porrifolius
2015 David Wolfson
Tragopogon porrifolius
2018 Amy Rapport

Tribulus terrestris    Puncture vine,  Puncturevine
invasive non-native
Annual herb

ZYGOPHYLLACEAE

Tribulus terrestris
2009 Neal Kramer
Tribulus terrestris
2018 Julie Kierstead Nelson
Tribulus terrestris
2016 Joan Hampton

Trifolium albopurpureum    Indian clover,  Rancheria clover
native
Annual herb

FABACEAE

Trifolium albopurpureum
2010 Jorg Fleige & Mimi Fleige
Trifolium albopurpureum
2011 Jorg & Mimi Fleige
Trifolium albopurpureum
2013 Zoya Akulova

Trifolium bifidum var. decipiens    Notch leaf clover
native
Annual herb

FABACEAE

Trifolium bifidum var. decipiens
2004 Carol W. Witham
Trifolium bifidum var. decipiens
2008 Keir Morse
Trifolium bifidum var. decipiens
2008 Keir Morse

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

FABACEAE

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

Trifolium fragiferum    Strawberry clover
non-native
Perennial herb

FABACEAE

Trifolium fragiferum
2014 Robert Sikora
Trifolium fragiferum
2008 Zoya Akulova
Trifolium fragiferum
2014 Robert Sikora

Trifolium fucatum    Bull clover,  Sour clover
native
Annual herb

FABACEAE

Trifolium fucatum
2019 James Gonsman
Trifolium fucatum
2019 Paul Aigner
Trifolium fucatum
2019 James Gonsman

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

Trifolium hirtum
2004 Carol W. Witham
Trifolium hirtum
2008 Keir Morse
Trifolium hirtum
2013 Zoya Akulova

Trifolium hydrophilum    Saline clover
native
Annual herb

FABACEAE

Trifolium hydrophilum
2005 Dean Wm. Taylor
Trifolium hydrophilum
2005 Aaron Schusteff
Trifolium hydrophilum
2005 Aaron Schusteff

Trifolium microcephalum    Hairy clover,  Maiden clover,  Small headed clover
native
Annual herb

FABACEAE

Trifolium microcephalum
2005 Steve Matson
Trifolium microcephalum
2008 Neal Kramer
Trifolium microcephalum
2018 Zoya Akulova

Trifolium microdon    Thimble clover,  Valparaiso clover
native
Annual herb

FABACEAE

Trifolium microdon
2008 Neal Kramer
Trifolium microdon
2018 Hayley Ross
Trifolium microdon
2013 Zoya Akulova

Trifolium pratense    Red clover
non-native
Perennial herb

FABACEAE

Trifolium pratense
Nick Kurzenko
Trifolium pratense
2007 Louis-M. Landry
Trifolium pratense
2014 Monty Rickard

Trifolium repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens
2017 Gary McDonald
Trifolium repens
2007 Dr. Amadej Trnkoczy
Trifolium repens
2017 Gary McDonald

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

FABACEAE

Trifolium subterraneum
2008 Jennifer Buck
Trifolium subterraneum
2008 Neal Kramer
Trifolium subterraneum
2019 Matt Berger

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

FABACEAE

Trifolium variegatum
2004 Carol W. Witham
Trifolium variegatum
2016 Cheryl Ballantyne
Trifolium variegatum
2019 Diane Etchison

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

Trifolium willdenovii
2025 Kim Cabrera
Trifolium willdenovii
2018 Stacie Wolny
Trifolium willdenovii
2020 Ron Vanderhoff

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

FABACEAE

Trifolium wormskioldii
2018 Hayley Ross
Trifolium wormskioldii
2009 Dr. Mark S. Brunell
Trifolium wormskioldii
2015 James Gonsman

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

OROBANCHACEAE

Triphysaria eriantha ssp. eriantha
2004 Carol W. Witham
Triphysaria eriantha ssp. eriantha
2020 Susan McDougall
Triphysaria eriantha ssp. eriantha
2020 Susan McDougall

Typha domingensis    Narrowleaf cattail,  Southern cattail
native
Perennial herb

TYPHACEAE

Typha domingensis
2018 Neal Kramer
Typha domingensis
2013 Neal Kramer
Typha domingensis
2013 Susan McDougall

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

TYPHACEAE

Typha latifolia
2007 Neal Kramer
Typha latifolia
2004 Steve Matson
Typha latifolia
2015 Keir Morse

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

URTICACEAE

Urtica dioica ssp. holosericea
2017 Ron Vanderhoff
Urtica dioica ssp. holosericea
2019 Bonnie Nickel
Urtica dioica ssp. holosericea
2013 Neal Kramer

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

VERBENACEAE

Verbena lasiostachys var. lasiostachys
2018 Gary McDonald
Verbena lasiostachys var. lasiostachys
2019 Mary Conway
Verbena lasiostachys var. lasiostachys
2018 Mary Conway

Veronica anagallis-aquatica    Water speedwell
non-native
Perennial herb

PLANTAGINACEAE

Veronica anagallis-aquatica
2005 Chris Wagner, SBNF
Veronica anagallis-aquatica
2020 Ron Vanderhoff
Veronica anagallis-aquatica
2019 Diane Etchison

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

FABACEAE

Vicia benghalensis
2010 Neal Kramer
Vicia benghalensis
2007 Neal Kramer
Vicia benghalensis
2005 Luigi Rignanese

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

FABACEAE

Vicia sativa ssp. sativa
2009 Neal Kramer
Vicia sativa ssp. sativa
2009 Barry Breckling
Vicia sativa ssp. sativa
2019 Matt Berger

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

FABACEAE

Vicia villosa ssp. varia
2008 Keir Morse
Vicia villosa ssp. varia
2020 Julie A. Kierstead
Vicia villosa ssp. varia
2020 Ken Lunders

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

VIOLACEAE

Viola pedunculata
2018 James Gonsman
Viola pedunculata
2014 James Gonsman
Viola pedunculata
2019 Ken Hickman

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

ASTERACEAE

Xanthium spinosum
2018 Joslyn Curtis
Xanthium spinosum
2014 Richard Spellenberg
Xanthium spinosum
2020 Thomas Reyes

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

Xanthium strumarium
2019 Ron Vanderhoff
Xanthium strumarium
2018 Ron Vanderhoff
Xanthium strumarium
2017 B.J. Dion

Zeltnera muehlenbergii    Muehlenberg's centaury
native
Annual herb

GENTIANACEAE

Zeltnera muehlenbergii
2019 Patrick Furtado
Zeltnera muehlenbergii
2015 James Gonsman
Zeltnera muehlenbergii
2008 Neal Kramer