logo Calflora Illustrated Plant List 

Kehoe trail, Pt Reyes
Kehoe trail and beach, Pt Reyes

Marin County

Doreen Smith et al.  / Marin CNPS  (2005-07-01)

Record Detail Nearby Surveys What Grows Here?
204 PLANTS
Abronia latifolia    Coastal sand verbena,  Sand verbena,  Yellow sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia latifolia
2014 James Gonsman
Abronia latifolia
2016 Steve Matson
Abronia latifolia
2020 David Krause

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2020 Bob Sweatt
Achillea millefolium
2014 James Gonsman
Achillea millefolium
2018 Gary McDonald

Agoseris apargioides var. eastwoodiae    Beach dandelion,  Eastwood's seaside agoseris,  Woolly goat chicory
native
Perennial herb

ASTERACEAE

Agoseris apargioides var. eastwoodiae
2017 James Gonsman
Agoseris apargioides var. eastwoodiae
2017 Adam Chasey
Agoseris apargioides var. eastwoodiae
2017 John Doyen

Agrostis densiflora    California bent grass,  California bentgrass,  Point reyes bent grass
native
Perennial grass

POACEAE

Agrostis densiflora
2013 Robert Steers/NPS
Agrostis densiflora
2011 Dylan Neubauer
Agrostis densiflora
2005 Doreen L. Smith

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

POACEAE

Aira caryophyllea
2004 Carol W. Witham
Aira caryophyllea
2009 Keir Morse
Aira caryophyllea
2010 Zoya Akulova

Aira praecox    Yellow hairgrass
invasive non-native
Annual grass

POACEAE

Aira praecox
2010 National Park Service
Aira praecox
2018 Ken Hickman
Aira praecox
2009 Zoya Akulova

Allium dichlamydeum    Coast onion,  Coastal onion
native
Perennial herb (bulb)

ALLIACEAE

Allium dichlamydeum
2015 James Gonsman
Allium dichlamydeum
2013 Roy West
Allium dichlamydeum
2018 Abbot Chambers

Ambrosia chamissonis    Beach bur,  Silver beachweed
native
Perennial herb

ASTERACEAE

Ambrosia chamissonis
2016 John Doyen
Ambrosia chamissonis
2018 Andy Jones
Ambrosia chamissonis
2018 Richard Spjut

Ammophila arenaria    Beachgrass,  European beach grass,  European beachgrass
invasive non-native
Perennial grass

POACEAE

Ammophila arenaria
2009 Neal Kramer
Ammophila arenaria
2015 Zoya Akulova
Ammophila arenaria
2014 Trent M. Draper

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

BORAGINACEAE

Amsinckia menziesii var. menziesii
2019 Ron Vanderhoff
Amsinckia menziesii var. menziesii
2018 Gary McDonald
Amsinckia menziesii var. menziesii
2015 Jesse Rorabaugh

Amsinckia spectabilis var. spectabilis    Seaside fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia spectabilis var. spectabilis
2015 Zoya Akulova
Amsinckia spectabilis var. spectabilis
2015 Susan McDougall
Amsinckia spectabilis var. spectabilis
2015 Robert Sikora

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

Angelica hendersonii    Coast angelica,  Henderson's angelica
native
Perennial herb

APIACEAE

Angelica hendersonii
2020 Suzanne L. Weakley
Angelica hendersonii
2013 Toni Corelli
Angelica hendersonii
2018 Abbot Chambers

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

PLUMBAGINACEAE

Armeria maritima ssp. californica
2011 Steven Perry
Armeria maritima ssp. californica
2015 Susan McDougall
Armeria maritima ssp. californica
2013 James Gonsman

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

Aster chilensis    California aster,  Pacific aster
native
Perennial herb

ASTERACEAE

Aster chilensis
2020 Suzanne L. Weakley
Aster chilensis
2020 Mary Conway
Aster chilensis
2018 Stacie Wolny

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

CHENOPODIACEAE

Atriplex leucophylla
2019 Angelique Herman
Atriplex leucophylla
2019 Diane Etchison
Atriplex leucophylla
2009 Neal Kramer

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

POACEAE

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

Baccharis douglasii    Mule fat
native
Shrub

ASTERACEAE

Baccharis douglasii
2021 Mike Russler
Baccharis douglasii
2013 Keir Morse
Baccharis douglasii
2013 Keir Morse

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
2009 Margo Bors
Baccharis pilularis
2020 A. Nuebel
Baccharis pilularis
2019 Jennifer Riddell

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

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

POACEAE

Briza minor
2005 Brent Miller
Briza minor
2008 Keir Morse
Briza minor
2004 Carol W. Witham

native
Perennial herb

THEMIDACEAE

Brodiaea terrestris ssp. terrestris
2004 Carol W. Witham
Brodiaea terrestris ssp. terrestris
2013 John Doyen
Brodiaea terrestris ssp. terrestris
2001 Bart and Susan Eisenberg

Bromus carinatus var. maritimus    Maritime brome
native
Perennial grass

POACEAE

Bromus carinatus var. maritimus
2020 Ken Hickman
Bromus carinatus var. maritimus
2020 Michelle Karle
Bromus carinatus var. maritimus
2016 Richard Chasey

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

Cakile maritima    European searocket,  Sea rocket
invasive non-native
Annual herb

BRASSICACEAE

Cakile maritima
2009 Neal Kramer
Cakile maritima
2019 Cynthia Powell
Cakile maritima
2014 James Gonsman

Calamagrostis nutkaensis    Pacific reedgrass
native
Perennial grass

POACEAE

Calamagrostis nutkaensis
2018 Ken Hickman
Calamagrostis nutkaensis
2008 Eric Wrubel
Calamagrostis nutkaensis
2019 Ken Hickman

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2020 Bob Sweatt
Calandrinia ciliata
2019 Ron Vanderhoff

Calystegia soldanella    Beach morning glory,  Beach morningglory
native
Perennial herb

CONVOLVULACEAE

Calystegia soldanella
2020 David Greenberger
Calystegia soldanella
2008 John Dittes
Calystegia soldanella
2021 Hayley Ross

Camissonia cheiranthifolia    Beach evening-primrose
native
Perennial herb

ONAGRACEAE

Camissonia cheiranthifolia
2019 Patrick Furtado
Camissonia cheiranthifolia
2019 Ron Vanderhoff
Camissonia cheiranthifolia
2019 Mary Conway

Camissonia ovata    Sun cup,  Goldeneggs
native
Perennial herb

ONAGRACEAE

Camissonia ovata
2021 Cynthia Powell
Camissonia ovata
2020 Susan McDougall
Camissonia ovata
2012 Neal Kramer

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

BRASSICACEAE

Capsella bursa-pastoris
2007 Carol W. Witham
Capsella bursa-pastoris
2019 Cynthia Powell
Capsella bursa-pastoris
2020 Bob Sweatt

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

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

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

BRASSICACEAE

Cardamine oligosperma
2019 Chico Hiking Association
Cardamine oligosperma
2013 Emily Wong
Cardamine oligosperma
2013 Ron Wolf

Cardionema ramosissimum    Sand mat,  Sandcarpet
native
Perennial herb

CARYOPHYLLACEAE

Cardionema ramosissimum
2011 Jorg & Mimi Fleige
Cardionema ramosissimum
2019 John Rawlings
Cardionema ramosissimum
2019 John Rawlings

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 obnupta    Coast carex,  Slough sedge
native
Perennial grasslike herb

CYPERACEAE

Carex obnupta
2007 Neal Kramer
Carex obnupta
2008 Keir Morse
Carex obnupta
2014 Zoya Akulova

Carpobrotus chilensis    Sea fig
invasive non-native
Perennial herb

AIZOACEAE

Carpobrotus chilensis
2018 Nicole Leatherman
Carpobrotus chilensis
2006 Joseph Dougherty, M.D./ecology.or
Carpobrotus chilensis
2018 Ron Vanderhoff

Castilleja affinis ssp. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis ssp. affinis
2020 Mary Conway
Castilleja affinis ssp. affinis
2018 Ron Vanderhoff
Castilleja affinis ssp. affinis
2018 Ron Vanderhoff

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

Chamomilla suaveolens    Pineapple weed
native
Annual herb

ASTERACEAE

Chamomilla suaveolens
2019 Diane Etchison
Chamomilla suaveolens
2019 Chico Hiking Association
Chamomilla suaveolens
2019 Bob Sweatt

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

AGAVACEAE

Chlorogalum pomeridianum var. divaricatum
2009 Jorg Fleige
Chlorogalum pomeridianum var. divaricatum
2008 Gary A. Monroe

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

ASTERACEAE

Cirsium quercetorum
2007 Neal Kramer
Cirsium quercetorum
2020 R.A. Chasey
Cirsium quercetorum
2013 James Gonsman

Clarkia davyi    Davy's clarkia
native
Annual herb

ONAGRACEAE

Clarkia davyi
2013 Vernon Smith
Clarkia davyi
2021 Suzanne L. Weakley
Clarkia davyi
2011 Dylan Neubauer

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    Miner s lettuce,  Miner's lettuce
native
Annual herb

MONTIACEAE

Claytonia perfoliata
2020 Ron Vanderhoff
Claytonia perfoliata
2007 Neal Kramer
Claytonia perfoliata
2020 Camille Nowell

Claytonia sibirica    Candy flower,  Indian lettuce or candy flower,  Siberian springbeauty
native
Perennial herb

MONTIACEAE

Claytonia sibirica
2007 Aaron Schusteff
Claytonia sibirica
2017 Steve Matson
Claytonia sibirica
2017 Steve Matson

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
2008 Keir Morse
Conium maculatum
2013 Toni Corelli
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

Conyza floribunda    Tropical horseweed
non-native
Annual herb

ASTERACEAE

Conyza floribunda
2006 Michael Charters
Conyza floribunda
2018 Ron Vanderhoff
Conyza floribunda
2006 Michael Charters

Cornus sericea ssp. sericea    American dogwood,  Creek dogwood,  Red osier dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. sericea
2020 Doug Allshouse
Cornus sericea ssp. sericea
2019 Richard Spjut
Cornus sericea ssp. sericea
2020 Bob Sweatt

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

CRASSULACEAE

Crassula aquatica
2017 Diane Etchison
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

Cupressus macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

Cupressus macrocarpa
2019 Patrick Furtado
Cupressus macrocarpa
2009 Keir Morse
Cupressus macrocarpa
2019 Susan McDougall

Danthonia californica var. californica    California oatgrass
native
Perennial grass

POACEAE

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

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

Daucus pusillus
2019 Diane Etchison
Daucus pusillus
2014 Gary McDonald
Daucus pusillus
2021 Ken Lunders

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

POACEAE

Deschampsia cespitosa ssp. holciformis
2020 John Rawlings
Deschampsia cespitosa ssp. holciformis
2019 Toni Corelli
Deschampsia cespitosa ssp. holciformis
2013 Robert Steers/NPS

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
2020 Bryant Baker
Dichelostemma capitatum
2020 Cheryl Ballantyne
Dichelostemma capitatum
2020 Aleksandra Evert

Dudleya farinosa    Bluff lettuce,  North coast dudleya,  Powdery liveforever
native
Perennial herb

CRASSULACEAE

Dudleya farinosa
2019 Amy Rapport
Dudleya farinosa
2019 Patrick Furtado
Dudleya farinosa
2017 John Doyen

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
2003 Steve Matson

Epilobium ciliatum    Fringed willowherb,  Northern willow herb,  Slender willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum
2020 Ron Vanderhoff
Epilobium ciliatum
2019 Gary McDonald
Epilobium ciliatum
2012 Ron Vanderhoff

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

EQUISETACEAE

Equisetum arvense
2006 Robert Sivinski
Equisetum arvense
2019 Bob Sweatt
Equisetum arvense
2019 Julie Kierstead Nelson

Erigeron glaucus    Seaside daisy,  Seaside fleabane
native
Perennial herb

ASTERACEAE

Erigeron glaucus
2019 James Gonsman
Erigeron glaucus
2018 Bill Schmidt
Erigeron glaucus
2018 Hilary Tayeb

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

POLYGONACEAE

Eriogonum latifolium
2016 Suzanne L. Weakley
Eriogonum latifolium
2014 James Gonsman
Eriogonum latifolium
2017 Adam Chasey

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

ASTERACEAE

Eriophyllum staechadifolium
2020 Suzanne L. Weakley
Eriophyllum staechadifolium
2013 James Gonsman
Eriophyllum staechadifolium
2014 James Gonsman

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

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica
2021 Ron Vanderhoff
Eschscholzia californica
2020 Amy Rapport
Eschscholzia californica
2009 Barry Rice

Festuca rubra    Red fescue
native
Perennial grass

POACEAE

Festuca rubra
2013 Robert Steers/NPS
Festuca rubra
2012 Aaron Arthur
Festuca rubra
2014 Phil Pullen

Fragaria chiloensis    Beach strawberry
native
Perennial herb

ROSACEAE

Fragaria chiloensis
2016 Teresa R Spade, AICP
Fragaria chiloensis
2020 Susan McDougall
Fragaria chiloensis
2009 Thomas Stoughton

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

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

Geranium potentilloides    Cinquefoil geranium,  New zealand geranium
non-native
Perennial herb

GERANIACEAE

Geranium potentilloides
2008 Jorg Fleige
Geranium potentilloides
2008 Doreen L. Smith

Glyceria occidentalis    Western manna grass
non-native
Perennial grass (aquatic)

POACEAE

Glyceria occidentalis
2007 Gerald Carr
Glyceria occidentalis
2007 Gerald Carr
Glyceria occidentalis
2007 Gerald Carr

Gnaphalium purpureum    Featherweed
native
Perennial herb

ASTERACEAE

Gnaphalium purpureum
2019 Gary McDonald
Gnaphalium purpureum
2021 Zoya Akulova-Barlow
Gnaphalium purpureum
2019 Gary McDonald

Gnaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

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

Grindelia hirsutula var. maritima    Coastal gumweed,  San francisco gum plant,  San francisco gumplant
native
Perennial herb

ASTERACEAE

Grindelia hirsutula var. maritima
2016 Neal Kramer
Grindelia hirsutula var. maritima
2009 Neal Kramer
Grindelia hirsutula var. maritima
2009 Neal Kramer

Grindelia stricta var. platyphylla    Gumplant,  Gumweed,  Oregon gumweed
native
Perennial herb

ASTERACEAE

Grindelia stricta var. platyphylla
2020 Mary Conway
Grindelia stricta var. platyphylla
2019 Patrick Furtado
Grindelia stricta var. platyphylla
2014 Dee Warenycia

Hemizonia congesta    Hayfield tarweed
native
Annual herb

ASTERACEAE

Hemizonia congesta
2015 Vernon Smith
Hemizonia congesta
2018 Stacie Wolny
Hemizonia congesta
2019 Jennifer Mo

Heracleum lanatum    Common cowparsnip
native
Perennial herb

APIACEAE

Heracleum lanatum
2019 Bob Sweatt
Heracleum lanatum
2019 Bob Sweatt
Heracleum lanatum
2018 Julie Kierstead Nelson

Hesperevax sparsiflora var. brevifolia    Short leaved evax,  Shortleaf dwarf cudweed
native
Annual herb

ASTERACEAE

Hesperevax sparsiflora var. brevifolia
2013 Robert Steers/NPS
Hesperevax sparsiflora var. brevifolia
2015 John Doyen
Hesperevax sparsiflora var. brevifolia
2015 Richard Spellenberg

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

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

POACEAE

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

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

POACEAE

Hordeum murinum ssp. leporinum
2015 Richard Chasey
Hordeum murinum ssp. leporinum
2009 Keir Morse
Hordeum murinum ssp. leporinum
2010 Neal Kramer

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

ARALIACEAE

Hydrocotyle ranunculoides
2013 Neal Kramer
Hydrocotyle ranunculoides
2010 Robert Steers/NPS
Hydrocotyle ranunculoides
1996 Doreen L. Smith

Hypericum anagalloides    Creeping st. john's wort,  Tinker's penny
native
Annual, Perennial herb

HYPERICACEAE

Hypericum anagalloides
2019 Bob Sweatt
Hypericum anagalloides
2020 Joaquin Hale
Hypericum anagalloides
2020 Bob Sweatt

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

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

ASTERACEAE

Hypochaeris radicata
2008 Sean B. Smith
Hypochaeris radicata
2017 Gary McDonald
Hypochaeris radicata
2017 Gary McDonald

Iris douglasiana    Douglas iris,  Douglas' iris
native
Perennial herb

IRIDACEAE

Iris douglasiana
2020 R.A. Chasey
Iris douglasiana
2020 Susan McDougall
Iris douglasiana
2009 John W. Wall

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 effusus var. brunneus    Coast or bog rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus var. brunneus
2019 Patrick Furtado
Juncus effusus var. brunneus
2019 Patrick Furtado
Juncus effusus var. brunneus
2012 Aaron E. Sims

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 patens    Common rush,  Spreading rush
native
Perennial grasslike herb

JUNCACEAE

Juncus patens
2008 Neal Kramer
Juncus patens
2014 Mike Wood
Juncus patens
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
2017 Adam Chasey

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

ASTERACEAE

Lasthenia californica
2020 Ron Vanderhoff
Lasthenia californica
2017 MCOSD EDRR
Lasthenia californica
2020 Ron Vanderhoff

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

ASTERACEAE

Lasthenia minor
2005 George W. Hartwell
Lasthenia minor
2015 Susan McDougall
Lasthenia minor
2019 James Gonsman

Layia carnosa    Beach layia,  Beach tidytips
native
Annual herb

ASTERACEAE

Layia carnosa
2007 Aaron Schusteff
Layia carnosa
2019 Scott Yarger
Layia carnosa
2019 Joey Santore

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

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

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

BRASSICACEAE

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

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

Leymus mollis ssp. mollis    American dune grass, sea lyme grass
native
Perennial grass

POACEAE

Leymus mollis ssp. mollis
2008 Neal Kramer
Leymus mollis ssp. mollis
2008 Neal Kramer
Leymus mollis ssp. mollis
2012 Robert Steers/NPS

Linanthus parviflorus var. rosaceus    Rose leptosiphon
native
Annual herb

POLEMONIACEAE

Linanthus parviflorus var. rosaceus
2012 Paul Hankamp
Linanthus parviflorus var. rosaceus
2013 Aaron Schusteff
Linanthus parviflorus var. rosaceus
2013 Aaron Schusteff

Linaria canadensis    Canada toadflax
native
Annual, Biennial herb

SCROPHULARIACEAE

Linaria canadensis
2016 Keir Morse
Linaria canadensis
2016 Keir Morse
Linaria canadensis
2016 Keir Morse

Lolium multiflorum    Italian rye grass
invasive non-native
Annual, Perennial grass

POACEAE

Lolium multiflorum
2004 Carol W. Witham
Lolium multiflorum
2018 MCOSD EDRR
Lolium multiflorum
2003 James B. Gratiot

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

APIACEAE

Lomatium dasycarpum ssp. dasycarpum
2008 Keir Morse
Lomatium dasycarpum ssp. dasycarpum
2018 Gary McDonald
Lomatium dasycarpum ssp. dasycarpum
2020 Matt Berger

Lonicera involucrata var. ledebourii    Coast twinberry,  Twinberry honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera involucrata var. ledebourii
2007 Neal Kramer
Lonicera involucrata var. ledebourii
2020 Susan McDougall
Lonicera involucrata var. ledebourii
2011 Toni Corelli

Lotus glaber   


Lotus heermannii var. orbicularis    Round leaved heermann's lotus
native
Perennial herb

FABACEAE

Lotus heermannii var. orbicularis
2014 Neal Kramer
Lotus heermannii var. orbicularis
2017 John Doyen
Lotus heermannii var. orbicularis
2018 Debra L. Cook

Lotus micranthus    Hill lotus
native
Annual herb

FABACEAE

Lotus micranthus
2019 Chico Hiking Association
Lotus micranthus
2019 Ron Vanderhoff
Lotus micranthus
2019 Chico Hiking Association

Lotus scoparius    Deerweed
native
Perennial herb

FABACEAE

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

Lupinus arboreus    Coastal bush lupine,  Yellow bush lupine
native
Shrub

FABACEAE

Lupinus arboreus
2020 Steve Matson
Lupinus arboreus
2020 Steve Matson
Lupinus arboreus
2020 Steve Matson

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 Gary McDonald

Lupinus chamissonis    Beach blue lupine,  Chamisso bush lupine,  Dune bush lupine
native
Shrub

FABACEAE

Lupinus chamissonis
2015 Robert Sikora
Lupinus chamissonis
2010 Gary A. Monroe
Lupinus chamissonis
2013 Robert Sikora

Lupinus variicolor    Manycolored lupine,  Varied lupine
native
Shrub

FABACEAE

Lupinus variicolor
2015 John Rusk
Lupinus variicolor
2018 David Greenberger
Lupinus variicolor
2006 Doreen L. Smith

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

LYTHRACEAE

Lythrum hyssopifolium
2017 Toni Corelli
Lythrum hyssopifolium
2009 Jorg Fleige
Lythrum hyssopifolium
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

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

Marah fabaceus    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah fabaceus
2016 Glen Schneider
Marah fabaceus
2018 Gary McDonald
Marah fabaceus
2018 Gary McDonald

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2019 Diane Etchison
Matricaria discoidea
2019 Chico Hiking Association
Matricaria discoidea
2019 Bob Sweatt

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

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

LAMIACEAE

Mentha arvensis
2003 Steve Matson
Mentha arvensis
2013 Debra L. Cook
Mentha arvensis
2015 Barry Breckling

Mentha Xpiperita    Peppermint
non-native
Perennial herb

LAMIACEAE

Mentha Xpiperita
2019 Ron Vanderhoff
Mentha Xpiperita
1995 Saint Mary's College of California

Microseris bigelovii    Coast microseris,  Coastal silverpuffs
native
Annual herb

ASTERACEAE

Microseris bigelovii
2011 Ryan Batten
Microseris bigelovii
2015 John Doyen
Microseris bigelovii
2013 Al Keuter

Mimulus aurantiacus    Sticky monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
2019 Gary McDonald
Mimulus aurantiacus
2019 Stacie Wolny
Mimulus aurantiacus
2020 Ron Vanderhoff

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

PHRYMACEAE

Mimulus guttatus
2019 Stacie Wolny
Mimulus guttatus
2019 Chico Hiking Association
Mimulus guttatus
2015 James Gonsman

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

Myrica californica    California wax myrtle
native
Shrub

MYRICACEAE

Myrica californica
2008 Neal Kramer
Myrica californica
2020 Susan McDougall
Myrica californica
2008 Keir Morse

Nassella pulchra    Purple needle grass
native
Perennial grass

POACEAE

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

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

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

Nemophila menziesii    Baby blue eyes
native
Annual herb

BORAGINACEAE

Nemophila menziesii
2019 Matt Berger
Nemophila menziesii
2018 James Gonsman
Nemophila menziesii
2020 Mary Conway

Nemophila menziesii var. atomaria    Baby blue eyes
native
Annual herb

BORAGINACEAE

Nemophila menziesii var. atomaria
2006 David McClurg
Nemophila menziesii var. atomaria
2020 Susan McDougall
Nemophila menziesii var. atomaria
2020 Susan McDougall

Oenanthe sarmentosa    Pacific oenanthe,  Water parsley
native
Perennial herb

APIACEAE

Oenanthe sarmentosa
2002 Brad Kelley
Oenanthe sarmentosa
2009 Dr. Mark S. Brunell
Oenanthe sarmentosa
2008 Keir Morse

Oenothera elata ssp. hookeri    Common evening primrose,  Evening primrose,  Hooker's evening primrose
native
Perennial herb

ONAGRACEAE

Oenothera elata ssp. hookeri
2020 Suzanne L. Weakley
Oenothera elata ssp. hookeri
2009 Neal Kramer
Oenothera elata ssp. hookeri
2018 Toni Corelli

Oxalis albicans ssp. pilosa    Hairy wood sorrel
native
Annual herb

OXALIDACEAE

Oxalis albicans ssp. pilosa
2010 Robert Steers/NPS
Oxalis albicans ssp. pilosa
2017 Elliot Gunnison
Oxalis albicans ssp. pilosa
2013 Robert Sikora

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

BORAGINACEAE

Phacelia distans
2013 James Gonsman
Phacelia distans
2014 James Gonsman
Phacelia distans
2008 Keir Morse

Phacelia malvifolia    Stinging phacelia
native
Annual herb

BORAGINACEAE

Phacelia malvifolia
2003 Margo Bors
Phacelia malvifolia
2003 Margo Bors
Phacelia malvifolia
2015 Zoya Akulova

Piperia elegans    Coast piperia,  Elegant piperia,  Elegant rein orchid
native
Perennial herb

ORCHIDACEAE

Piperia elegans
2019 Mary Conway
Piperia elegans
2019 John Rawlings
Piperia elegans
2018 Alexandra Kookootsedes

native
Annual herb

BORAGINACEAE

Plagiobothrys reticulatus var. rossianorum
2012 Vernon Smith
Plagiobothrys reticulatus var. rossianorum
2012 Vernon Smith

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
2019 Joe Engelbrecht
Plantago lanceolata
2019 Joe Engelbrecht

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
2019 Bob Sweatt
Plantago major
2019 Bob Sweatt
Plantago major
2009 Barry Breckling

Plantago maritima var. californica    Alkali plantain,  Goose tongue,  Maritime plantain
native
Perennial herb

PLANTAGINACEAE

Plantago maritima var. californica
2002 Margo Bors
Plantago maritima var. californica
2007 Neal Kramer
Plantago maritima var. californica
2014 Zoya Akulova

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
2018 Karen Scheuermann
Platystemon californicus
2019 Matt Berger
Platystemon californicus
2019 Diane Etchison

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

Polygonum amphibium var. emersum    Water smartweed
native
Perennial herb (aquatic)

POLYGONACEAE

Polygonum amphibium var. emersum
2019 Ken Hickman
Polygonum amphibium var. emersum
2009 Ron Vanderhoff
Polygonum amphibium var. emersum
2017 Ron Vanderhoff

Polygonum arenastrum    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum arenastrum
2016 Barbara Boethling
Polygonum arenastrum
2009 Barry Breckling
Polygonum arenastrum
2014 Richard Chasey

Polygonum punctatum    Dotted smartweed
native
Perennial herb

POLYGONACEAE

Polygonum punctatum
2014 Neal Kramer
Polygonum punctatum
2018 Ron Vanderhoff
Polygonum punctatum
2018 Ron Vanderhoff

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
2013 Neal Kramer
Polypodium californicum
2015 Keir Morse
Polypodium californicum
2013 Neal Kramer

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

ROSACEAE

Potentilla anserina ssp. pacifica
2007 Neal Kramer
Potentilla anserina ssp. pacifica
2013 James Gonsman
Potentilla anserina ssp. pacifica
2015 James Gonsman

Psilocarphus tenellus var. tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus var. tenellus
2012 Neal Kramer
Psilocarphus tenellus var. tenellus
2008 Keir Morse
Psilocarphus tenellus var. 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

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

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

Ranunculus flammula    Creeping buttercup,  Greater creeping spearwort,  Water buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus flammula
2009 Keir Morse
Ranunculus flammula
2020 Bob Sweatt
Ranunculus flammula
2020 Bob Sweatt

Ranunculus muricatus    Buttercup,  Pricklefruit buttercup,  Spiny buttercup
non-native
Annual, Perennial herb

RANUNCULACEAE

Ranunculus muricatus
2008 Jorg Fleige
Ranunculus muricatus
2006 George W. Hartwell
Ranunculus muricatus
2019 Chico Hiking Association

Raphanus raphanistrum    Jointed charlock,  Painted charlock,  Wild radish
non-native
Annual, Perennial herb

BRASSICACEAE

Raphanus raphanistrum
2008 Keir Morse
Raphanus raphanistrum
2009 Irene Lindsey
Raphanus raphanistrum
2004 Carol W. Witham

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

Rhamnus californica    California coffeeberry
native
Shrub

RHAMNACEAE

Rhamnus californica
2019 Talila Golan
Rhamnus californica
2018 Debra L. Cook
Rhamnus californica
2001 Lynn Overtree

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

native
Perennial herb (aquatic)

BRASSICACEAE

Rorippa nasturtium-aquaticum
2019 Patrick Furtado
Rorippa nasturtium-aquaticum
2019 Diane Etchison
Rorippa nasturtium-aquaticum
2016 Joan Hampton

Rubus parviflorus    Western thimbleberry
native
Vine, Shrub

ROSACEAE

Rubus parviflorus
2004 Robert Sivinski
Rubus parviflorus
2020 Mary Sue Ittner
Rubus parviflorus
2019 Patrick Furtado

Rubus spectabilis    Salmon berry,  Salmonberry
native
Shrub

ROSACEAE

Rubus spectabilis
2013 Robert Sikora
Rubus spectabilis
2017 James Gonsman
Rubus spectabilis
2011 Vernon Smith

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 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 Tim Lewis

Rumex salicifolius    Willow dock,  Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius
2019 Diane Etchison
Rumex salicifolius
2019 Diane Etchison
Rumex salicifolius
2019 Diane Etchison

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

Salix laevigata
2019 Barbara Brydolf
Salix laevigata
2020 Diane Etchison
Salix laevigata
2002 John Bair

Salix lasiolepis var. bigelovii    Arroyo willow
native
Tree, Shrub

SALICACEAE

Salix lasiolepis var. bigelovii
2008 Keir Morse
Salix lasiolepis var. bigelovii
2012 Zoya Akulova
Salix lasiolepis var. bigelovii
2016 Zoya Akulova

native
Tree, Shrub

SALICACEAE

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

Salix lucida ssp. lasiandra    Pacific willow
native
Tree

SALICACEAE

Salix lucida ssp. lasiandra
2007 Neal Kramer
Salix lucida ssp. lasiandra
2020 Diana Wahl
Salix lucida ssp. lasiandra
2020 Alice Cummings

Sambucus racemosa    Red elderberry
native
Shrub

ADOXACEAE

Sambucus racemosa
2017 James Gonsman
Sambucus racemosa
2014 James Gonsman
Sambucus racemosa
2020 Bob Sweatt

Sanicula arctopoides    Footsteps of spring,  Yellow mats
native
Perennial herb

APIACEAE

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

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

APIACEAE

Sanicula crassicaulis
2021 Cynthia Powell
Sanicula crassicaulis
2020 R.A. Chasey
Sanicula crassicaulis
2020 Ryan Carle

Scirpus californicus    California bulrush
native
Perennial grasslike herb

CYPERACEAE

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

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

CYPERACEAE

Scirpus microcarpus
2013 Ron Vanderhoff
Scirpus microcarpus
2003 Steve Matson
Scirpus microcarpus
2014 Zoya Akulova

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

SCROPHULARIACEAE

Scrophularia californica ssp. californica
2020 Bob Sweatt
Scrophularia californica ssp. californica
2019 Ron Vanderhoff
Scrophularia californica ssp. californica
2020 Bob Sweatt

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

Sidalcea malviflora ssp. malviflora    Checker mallow,  Dwarf checkerbloom
native
Perennial herb (rhizomatous)

MALVACEAE

Sidalcea malviflora ssp. malviflora
2020 Mary Conway
Sidalcea malviflora ssp. malviflora
2020 Diane Etchison
Sidalcea malviflora ssp. malviflora
2020 Diane Etchison

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

SOLANACEAE

Solanum americanum
2019 Gary McDonald
Solanum americanum
2020 Susan McDougall
Solanum americanum
2019 Gary McDonald

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    Spiny sowthistle
invasive non-native
Annual herb

ASTERACEAE

Sonchus asper
2006 Louis-M. Landry
Sonchus asper
2009 Zoya Akulova
Sonchus asper
2020 Julie A. Kierstead

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

Sparganium erectum    Simplestem bur reed
native
Perennial herb

TYPHACEAE

Sparganium erectum
2010 Louis-M. Landry (ssp. stoloniferum)
Sparganium erectum
2006 Louis-M. Landry (ssp. stoloniferum)

non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis ssp. arvensis
2005 Steve Matson
Spergula arvensis ssp. arvensis
2020 Mary Conway
Spergula arvensis ssp. arvensis
2015 Diane Etchison

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

CARYOPHYLLACEAE

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

Spergularia macrotheca    Large flowered sand spurry,  Sticky sand spurry,  Sticky sandspurry
native
Perennial herb

CARYOPHYLLACEAE

Spergularia macrotheca
2019 Mary Conway
Spergularia macrotheca
2017 B.J. Dion
Spergularia macrotheca
2019 Julian Geoghegan

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

CARYOPHYLLACEAE

Spergularia rubra
2008 Keir Morse
Spergularia rubra
2014 Dee Warenycia
Spergularia rubra
2009 Thomas Stoughton

Stachys ajugoides var. rigida    Mexican hedgenettle
native
Perennial herb

LAMIACEAE

Stachys ajugoides var. rigida
2013 Doreen L. Smith
Stachys ajugoides var. rigida
2020 Susan McDougall
Stachys ajugoides var. rigida
2013 Doreen L. Smith

Stellaria littoralis    Beach starwort,  Shore chickweed,  Shore starwort
native
Perennial herb

CARYOPHYLLACEAE

Stellaria littoralis
2017 David Greenberger
Stellaria littoralis
2002 Doreen L. Smith
Stellaria littoralis
2021 Roger Stephens

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

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

Tetragonia tetragonioides    New zealand spinach
invasive non-native
Annual herb

AIZOACEAE

Tetragonia tetragonioides
2009 Neal Kramer
Tetragonia tetragonioides
2018 Ron Vanderhoff
Tetragonia tetragonioides
2020 Ryan Carle

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

FABACEAE

Trifolium dubium
2008 Jorg Fleige
Trifolium dubium
2004 Carol W. Witham
Trifolium dubium
2015 Barry Breckling

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

OROBANCHACEAE

Triphysaria pusilla
2007 Aaron Schusteff
Triphysaria pusilla
2008 Keir Morse
Triphysaria pusilla
2012 Neal Kramer

Triteleia laxa    Ithuriel's spear
native
Perennial herb

THEMIDACEAE

Triteleia laxa
2018 Gary McDonald
Triteleia laxa
2020 Mary Sue Ittner
Triteleia laxa
2018 Tim Lewis

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

Veronica americana    American brooklime,  American speedwell,  Brooklime
native
Perennial herb

PLANTAGINACEAE

Veronica americana
2020 Bob Sweatt
Veronica americana
2014 Jim Moore
Veronica americana
2020 Bob Sweatt

Vicia gigantea    Giant vetch
native
Perennial herb

FABACEAE

Vicia gigantea
2013 James Gonsman
Vicia gigantea
2019 Cynthia Powell
Vicia gigantea
2006 Steve Matson

Vicia sativa    Spring vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa
2007 Luigi Rignanese
Vicia sativa
J. E.(Jed) and Bonnie McClellan 2007 California Academy of Sciences
Vicia sativa
2019 Cynthia Powell

Zantedeschia aethiopica    Calla lily,  Callalily,  Common calla
invasive non-native
Perennial herb

ARACEAE

Zantedeschia aethiopica
2019 Patrick Furtado
Zantedeschia aethiopica
2008 Neal Kramer
Zantedeschia aethiopica
Jo-Ann Ordano 2005 California Academy of Sciences