logo Calflora  Illustrated Plant List 
South Hills, Glendora
Los Angeles County

Dick Swinney  (2005-01-01)

Record Detail Nearby Surveys What Grows Here?
234 PLANTS
Acourtia microcephala    Sacapellote
native
Perennial herb

ASTERACEAE

Acourtia microcephala
© 2022 Diane Etchison
Acourtia microcephala
© 2019 Ron Vanderhoff
Acourtia microcephala
© 2021 Aaron Echols

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

SIMAROUBACEAE

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

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

ALLIACEAE

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

Allium vineale    Vineyard onion,  Wild garlic
invasive non-native
Perennial herb (bulb)

ALLIACEAE

Allium vineale
© 2017 dave hood
Allium vineale
© 2022 Emily R. Allen
Allium vineale
© 2017 dave hood

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

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

Ambrosia acanthicarpa    Annual bursage,  Annual burweed
native
Annual herb

ASTERACEAE

Ambrosia acanthicarpa
© 2009 Steve Matson
Ambrosia acanthicarpa
© 2009 Steve Matson
Ambrosia acanthicarpa
© 2013 Steve Matson

Ambrosia psilostachya    Ragweed,  Western ragweed
native
Perennial herb

ASTERACEAE

Ambrosia psilostachya
© 2021 Mary Ann Machi
Ambrosia psilostachya
© 2022 Ron Vanderhoff
Ambrosia psilostachya
© 2022 Ron Vanderhoff

Amsinckia menziesii var. intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

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

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
© 2017 B.J. Dion
Anagallis arvensis
© 2022 Chris McDonald
Anagallis arvensis
© 2023 Ron Vanderhoff

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

ASTERACEAE

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

Anthriscus caucalis    Bur chervil
non-native
Annual herb, Vine

APIACEAE

Anthriscus caucalis
© 2021 Aaron Echols
Anthriscus caucalis
© 2024 Ron Vanderhoff
Anthriscus caucalis
© 2020 Jennifer Mo

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

ROSACEAE

Aphanes occidentalis
© 2024 Mike Russler
Aphanes occidentalis
© 2022 Ron Vanderhoff
Aphanes occidentalis
© 2024 Mike Russler

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

ASTERACEAE

Artemisia californica
© 2018 James Gonsman
Artemisia californica
© 2019 Aaron Echols
Artemisia californica
© 2018 Ron Vanderhoff

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
© 2022 Ron Vanderhoff
Artemisia douglasiana
© 2016 Glen Schneider
Artemisia douglasiana
© 2021 Mike Russler

Arundo donax    Giant reed
invasive non-native
Perennial grass

POACEAE

Arundo donax
© 2013 Miriam Sachs Martin
Arundo donax
© 2020 Jennifer Mo
Arundo donax
© 2018 Ron Vanderhoff

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

APOCYNACEAE

Asclepias eriocarpa
© 2023 Ron Vanderhoff
Asclepias eriocarpa
© 2014 Dan Cohn
Asclepias eriocarpa
© 2019 Ron Vanderhoff

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

Asclepias fascicularis
© 2010 Steve Matson
Asclepias fascicularis
© 2010 Steve Matson
Asclepias fascicularis
© 2014 Steve Matson

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

FABACEAE

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

Atriplex canescens ssp. linearis    Slenderleaf saltbush
native
Shrub

CHENOPODIACEAE

Atriplex canescens ssp. linearis
© 2013 Paul Preston
Atriplex canescens ssp. linearis
© 2014 David Magney
Atriplex canescens ssp. linearis
© 2014 David Magney

Atriplex semibaccata    Australian saltbush
invasive non-native
Perennial herb

CHENOPODIACEAE

Atriplex semibaccata
© 2015 James Bailey
Atriplex semibaccata
© 2021 David Wolfson
Atriplex semibaccata
© 2020 Ron Vanderhoff

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

POACEAE

Avena barbata
© 2018 Julian Geoghegan
Avena barbata
© 2023 David popp
Avena barbata
© 2019 Ron Vanderhoff

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

POACEAE

Avena fatua
© 2018 Gary McDonald
Avena fatua
© 2023 Ron Vanderhoff
Avena fatua
© 2023 Matt Berger

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

POACEAE

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

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
© 2022 Ryan O'Dell
Baccharis pilularis
© 2021 Ron Vanderhoff: Staminate and pistillate plants in flower.
Baccharis pilularis
© 2018 Cynthia Powell

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

ASTERACEAE

Baccharis salicifolia
© 2023 Julia Markey
Baccharis salicifolia
© 2024 Ron Vanderhoff
Baccharis salicifolia
© 2020 Aaron Echols

Baccharis sarothroides    Desertbroom baccharis
native
Shrub

ASTERACEAE

Baccharis sarothroides
© 2022 Ron Vanderhoff
Baccharis sarothroides
© 2022 Ron Vanderhoff
Baccharis sarothroides
© 2022 Ron Vanderhoff

Bidens pilosa var. pilosa    Hairy beggarticks
non-native
Annual herb

ASTERACEAE

Bidens pilosa var. pilosa
© 2021 Ron Vanderhoff
Bidens pilosa var. pilosa
© 2018 Ron Vanderhoff
Bidens pilosa var. pilosa
© 2020 David Wolfson

Bloomeria crocea    Common goldenstar,  Golden star
native
Perennial herb

THEMIDACEAE

Bloomeria crocea
© 2018 Janith Johnson
Bloomeria crocea
© 2014 Steve Matson
Bloomeria crocea
© 2014 Steve Matson

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

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

Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
© 2021 Ron Vanderhoff
Brassica nigra
© 2019 Ron Vanderhoff
Brassica nigra
© 2019 Ron Vanderhoff

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

BRASSICACEAE

Brassica rapa
© 2024 David Wolfson
Brassica rapa
© 2021 Diane Etchison
Brassica rapa
© 2018 Angelique Herman

Brickellia californica    Brickell bush,  California brickellbush,  California brickellia
native
Perennial herb

ASTERACEAE

Brickellia californica
© 2020 Diane Etchison
Brickellia californica
© 2018 Diane Etchison
Brickellia californica
© 2022 Ron Vanderhoff

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

POACEAE

Bromus diandrus
© Alize
Bromus diandrus
© 2021 Richard Spjut
Bromus diandrus
© 2024 David popp

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

POACEAE

Bromus hordeaceus
© 2023 Ron Vanderhoff
Bromus hordeaceus
© 2018 Gary McDonald
Bromus hordeaceus
© 2018 Gary McDonald

invasive non-native
Annual grass

POACEAE

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

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
© 2021 Mary Ann Machi
Calandrinia ciliata
© 2019 Ron Vanderhoff
Calandrinia ciliata
© 2019 Ron Vanderhoff

Calochortus catalinae    Catalina mariposa lily
rare native
Perennial herb (bulb)

LILIACEAE

Calochortus catalinae
© 2017 Steve Matson
Calochortus catalinae
© 2023 Ron Vanderhoff
Calochortus catalinae
© 2023 Ron Vanderhoff

Calystegia macrostegia    Island false bindweed,  Island morning glory
native
Perennial herb, Vine

CONVOLVULACEAE

Calystegia macrostegia
© 2020 Steven M Norris
Calystegia macrostegia
© 2022 Ron Vanderhoff
Calystegia macrostegia
© 2018 Ron Vanderhoff

Camissonia bistorta    California sun cup
native
Annual herb

ONAGRACEAE

Camissonia bistorta
© 2019 Ron Vanderhoff
Camissonia bistorta
© 2023 Ron Vanderhoff
Camissonia bistorta
© 2019 Ken Hickman

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

BRASSICACEAE

Capsella bursa-pastoris
© 2008 Steve Matson
Capsella bursa-pastoris
© 2008 Steve Matson
Capsella bursa-pastoris
© 2008 Steve Matson

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus
© 2019 Gary McDonald
Carduus pycnocephalus
© 2023 Diana Wahl
Carduus pycnocephalus
© 2023 Ron Vanderhoff

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

ASTERACEAE

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

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

CARYOPHYLLACEAE

Cerastium glomeratum
© 2024 Dana York
Cerastium glomeratum
© 2023 Ron Vanderhoff
Cerastium glomeratum
© 2023 R.A. Chasey

Cercocarpus betuloides    Birch leaf mountain mahogany,  Mountain mahogany
native
Tree, Shrub

ROSACEAE

Cercocarpus betuloides
© 2020 Rebecca Schoenenberger
Cercocarpus betuloides
© 2020 Aaron Echols
Cercocarpus betuloides
© 2016 Cindy Roessler

Chamaesyce melanadenia    Red-gland spurge
native
Perennial herb

EUPHORBIACEAE

Chamaesyce melanadenia
© 2022 Rosalind Helfand
Chamaesyce melanadenia
© 2020 Matt Berger
Chamaesyce melanadenia
© 2020 Matt Berger

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

CHENOPODIACEAE

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

Chenopodium californicum    California goosefoot,  Pigweed,  Soaproot
native
Perennial herb

CHENOPODIACEAE

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

Chlorogalum pomeridianum    Amole,  Soap plant,  Soaproot
native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum
© 2019 Patrick Furtado
Chlorogalum pomeridianum
© 2020 Robert Katz
Chlorogalum pomeridianum
© 2019 Diane Etchison

Cirsium occidentale    Cobweb thistle,  Western thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale
© 2011 Steve Matson
Cirsium occidentale
© 2011 Steve Matson
Cirsium occidentale
© 2011 Steve Matson

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
© 2017 James Bailey
Cirsium vulgare
© 2020 Bob Sweatt
Cirsium vulgare
© 2020 Bob Sweatt

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

ONAGRACEAE

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

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

ONAGRACEAE

Clarkia purpurea ssp. quadrivulnera
© 2014 Steve Matson
Clarkia purpurea ssp. quadrivulnera
© 2016 Steve Matson
Clarkia purpurea ssp. quadrivulnera
© 2016 Steve Matson

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

MONTIACEAE

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

Clematis pauciflora    Few flowered clematis,  Hill clematis,  Ropevine clematis
native
Perennial herb, Vine

RANUNCULACEAE

Clematis pauciflora
© 2015 Diane Etchison
Clematis pauciflora
© 2019 Ron Vanderhoff
Clematis pauciflora
© 2019 Diane Etchison

Collinsia heterophylla    Purple chinese houses
native
Annual herb

PLANTAGINACEAE

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

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
© 2024 Cynthia Powell
Conium maculatum
© 2013 Toni Corelli
Conium maculatum
© 2016 Cynthia Powell

Conyza bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Conyza bonariensis
© 2021 Donald Burk
Conyza bonariensis
© 2017 Gary McDonald
Conyza bonariensis
© 2023 Ron Vanderhoff

Conyza canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

Conyza canadensis
© 2017 Gary McDonald
Conyza canadensis
© 2017 Gary McDonald
Conyza canadensis
© 2022 Mike Russler

Cotula australis    Australian brass buttons,  Australian cotula,  Australian waterbuttons
non-native
Annual herb

ASTERACEAE

Cotula australis
© 2023 Mike Russler
Cotula australis
© 2022 Ron Vanderhoff
Cotula australis
© 2023 Mike Russler

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

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

CONVOLVULACEAE

Cuscuta californica
© 2019 Ron Vanderhoff
Cuscuta californica
© 2018 David popp
Cuscuta californica
© 2019 stephen rosenthal

Cuscuta pentagona    Five angled dodder,  Fiveangled dodder,  Western field dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta pentagona
© © 2016 Keir Morse
Cuscuta pentagona
© 2016 Keir Morse
Cuscuta pentagona
© 2016 Keir Morse

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

POACEAE

Cynodon dactylon
© 2021 Ron Vanderhoff
Cynodon dactylon
© 2020 Ron Vanderhoff
Cynodon dactylon
© 2021 Ron Vanderhoff

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

CYPERACEAE

Cyperus alternifolius
© 2018 Rachelle Gray
Cyperus alternifolius
© 2020 Martin Lemon
Cyperus alternifolius
© 2018 Jennifer Mo

Datura wrightii    Jimsonweed,  Sacred thorn apple,  Toluaca
native
Perennial herb

SOLANACEAE

Datura wrightii
© 2019 Bonnie Nickel
Datura wrightii
© 2019 Ron Vanderhoff
Datura wrightii
© 2019 Bonnie Nickel

Delphinium cardinale    Scarlet larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium cardinale
© Geoff Burleigh
Delphinium cardinale
© 2021 Colin Barrows
Delphinium cardinale
© 2018 Mike Libby

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
© 2023 Steve Matson
Dichelostemma capitatum
© 2023 Steve Matson
Dichelostemma capitatum
© 2022 Steve Matson

Digitaria sanguinalis    Hairy crabgrass
non-native
Annual grass

POACEAE

Digitaria sanguinalis
© 2022 Ron Vanderhoff
Digitaria sanguinalis
© 2022 Ron Vanderhoff
Digitaria sanguinalis
© 2019 Jennifer Mo

Dodecatheon clevelandii ssp. clevelandii    Cleveland's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii ssp. clevelandii
© 2019 Ron Vanderhoff
Dodecatheon clevelandii ssp. clevelandii
© 2015 Rob O'Keefe
Dodecatheon clevelandii ssp. clevelandii
© 2021 Ron Vanderhoff

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

DRYOPTERIDACEAE

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

Dudleya lanceolata    Lanceleaf liveforever,  Southern california dudleya
native
Perennial herb

CRASSULACEAE

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

Dudleya multicaulis    Many stemmed dudleya,  Manystem liveforever
rare native
Perennial herb

CRASSULACEAE

Dudleya multicaulis
© 2009 Ron Vanderhoff
Dudleya multicaulis
© 2019 Ron Vanderhoff
Dudleya multicaulis
© 2024 Ron Vanderhoff

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

POACEAE

Echinochloa crus-galli
© 2024 R.A. Chasey
Echinochloa crus-galli
© 2022 R.A. Chasey
Echinochloa crus-galli
© 2024 R.A. Chasey

Ehrharta calycina    Perennial veldt grass,  Perennial veldtgrass
invasive non-native
Perennial grass

POACEAE

Ehrharta calycina
© 2020 David Greenberger
Ehrharta calycina
© 2019 Ron Vanderhoff
Ehrharta calycina
© 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
© 2018 Ron Vanderhoff
Epilobium canum ssp. canum
© 2018 Ron Vanderhoff

Eremocarpus setigerus    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Eremocarpus setigerus
© 2011 Steve Matson
Eremocarpus setigerus
© 2011 Steve Matson
Eremocarpus setigerus
© 2014 Richard Chasey

Ericameria parishii var. parishii    Parish goldenweed,  Parish's goldenbush
native
Shrub

ASTERACEAE

Ericameria parishii var. parishii
© 2023 Ron Vanderhoff
Ericameria parishii var. parishii
© 2020 Maisie Borg
Ericameria parishii var. parishii
© 2023 Ron Vanderhoff

Ericameria pinifolia    Pine bush,  Pinebush
native
Shrub

ASTERACEAE

Ericameria pinifolia
© 2022 Ron Vanderhoff
Ericameria pinifolia
© 2015 Keir Morse
Ericameria pinifolia
© 2020 Ron Vanderhoff

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

ASTERACEAE

Erigeron foliosus var. foliosus
© 2023 Ron Vanderhoff
Erigeron foliosus var. foliosus
© 2024 Mike Russler
Erigeron foliosus var. foliosus
© 2022 Ron Vanderhoff

Eriogonum elongatum var. elongatum    Long stemmed buckwheat
native
Perennial herb

POLYGONACEAE

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

Eriogonum fasciculatum var. foliolosum    California buckwheat,  Eastern mojave buckwheat,  Red topped buckwheat
native
Shrub

POLYGONACEAE

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

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

ASTERACEAE

Eriophyllum confertiflorum var. confertiflorum
© 2023 Ryan O'Dell
Eriophyllum confertiflorum var. confertiflorum
© 2013 James Gonsman
Eriophyllum confertiflorum var. confertiflorum
© 2020 Ron Vanderhoff

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

GERANIACEAE

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

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

GERANIACEAE

Erodium brachycarpum
© 2016 Bob van Duinen
Erodium brachycarpum
© 2020 Angelique Herman
Erodium brachycarpum
© 2016 Steve Matson

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

GERANIACEAE

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

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
© 2018 Janith Johnson
Erysimum capitatum
© 2023 Julia Markey
Erysimum capitatum
© 2019 Diane Etchison

Eschscholzia californica var. crocea    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica var. crocea
© 2019 Dee Shea Himes
Eschscholzia californica var. crocea
© 2021 Ron Vanderhoff
Eschscholzia californica var. crocea
© 2019 Amy Rapport

Eucalyptus camaldulensis    Red gum,  Red river gum,  River redgum
invasive non-native
Tree

MYRTACEAE

Eucalyptus camaldulensis
© 2022 Ron Vanderhoff
Eucalyptus camaldulensis
© 2022 Ron Vanderhoff
Eucalyptus camaldulensis
© 2022 Ron Vanderhoff

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

HYDROPHYLLACEAE

Eucrypta chrysanthemifolia
© 2014 Steve Matson
Eucrypta chrysanthemifolia
© 2014 Steve Matson
Eucrypta chrysanthemifolia
© 2014 Steve Matson

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
© 2006 Steve Matson
Euphorbia peplus
© 2022 Alice Cummings
Euphorbia peplus
© 2018 MCOSD EDRR

Filago californica    California cottonrose
native
Annual herb

ASTERACEAE

Filago californica
© 2019 Steve Matson
Filago californica
© 2019 Steve Matson
Filago californica
© 2019 Steve Matson

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

APIACEAE

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

Fraxinus uhdei    Shamel ash
invasive non-native
Tree

OLEACEAE

Fraxinus uhdei
© 2023 Ron Vanderhoff
Fraxinus uhdei
© 2018 Ron Vanderhoff
Fraxinus uhdei
© 2023 Ron Vanderhoff

Galium angustifolium ssp. angustifolium    Narrow leaved bedstraw,  Narrowleaf bedstraw
native
Perennial herb

RUBIACEAE

Galium angustifolium ssp. angustifolium
© 2017 Steve Matson
Galium angustifolium ssp. angustifolium
© 2020 Ron Vanderhoff
Galium angustifolium ssp. angustifolium
© 2017 Steve Matson

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

RUBIACEAE

Galium aparine
© 2020 Ron Vanderhoff
Galium aparine
© 2023 Julia Markey
Galium aparine
© 2020 Ron Vanderhoff

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

GERANIACEAE

Geranium dissectum
© 2021 Al Keuter
Geranium dissectum
© 2023 Ron Vanderhoff
Geranium dissectum
© 2014 Bryan Derr

Gilia angelensis    Chaparral gilia
native
Annual herb

POLEMONIACEAE

Gilia angelensis
© 2023 Ron Vanderhoff
Gilia angelensis
© 2021 Ron Vanderhoff
Gilia angelensis
© 2021 Ron Vanderhoff

Gnaphalium bicolor    Two-color rabbit-tobacco
native
Perennial herb

ASTERACEAE

Gnaphalium bicolor
© 2019 David Greenberger
Gnaphalium bicolor
© 2019 Ron Vanderhoff
Gnaphalium bicolor
© 2019 Ron Vanderhoff

Gnaphalium californicum    Ladies' tobacco
native
Annual, Perennial herb

ASTERACEAE

Gnaphalium californicum
© 2019 Gary McDonald
Gnaphalium californicum
© 2020 Steven M Norris
Gnaphalium californicum
© 2021 Ron Vanderhoff

native
Perennial herb

ASTERACEAE

Gnaphalium canescens ssp. microcephalum
© 2020 Ron Vanderhoff
Gnaphalium canescens ssp. microcephalum
© 2022 David Strauch
Gnaphalium canescens ssp. microcephalum
© 2019 Ron Vanderhoff

Gnaphalium luteo-album    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Gnaphalium luteo-album
© 2021 Ron Vanderhoff
Gnaphalium luteo-album
© 2019 Diane Etchison
Gnaphalium luteo-album
© 2021 Ron Vanderhoff

Hazardia squarrosa    Saw toothed goldenbush,  Sawtooth goldenbush
native
Shrub

ASTERACEAE

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

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

ASTERACEAE

Helianthus annuus
© 2021 Mike Russler
Helianthus annuus
© 2019 Bob Case
Helianthus annuus
© 2024 Mel Letterman

Hemizonia fasciculata    Clustered tarweed
native
Annual herb

ASTERACEAE

Hemizonia fasciculata
© 2017 Steve Matson
Hemizonia fasciculata
© 2017 Steve Matson
Hemizonia fasciculata
© 2017 Steve Matson

Heteromeles arbutifolia    Christmas berry,  Toyon
native
Shrub

ROSACEAE

Heteromeles arbutifolia
© 2015 James Gonsman
Heteromeles arbutifolia
© 2017 Gary McDonald
Heteromeles arbutifolia
© 2022 John Doyen

Heterotheca grandiflora    Telegraph weed,  Telegraphweed
native
Annual, Perennial herb

ASTERACEAE

Heterotheca grandiflora
© 2021 Mike Russler
Heterotheca grandiflora
© 2021 Mike Russler
Heterotheca grandiflora
© 2021 Mike Russler

Heterotheca sessiliflora ssp. fastigiata    Erect goldenaster,  Sessileflower false goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca sessiliflora ssp. fastigiata
© 2017 dora black
Heterotheca sessiliflora ssp. fastigiata
© 2002 Hartmut Wisch
Heterotheca sessiliflora ssp. fastigiata
© 2002 Hartmut Wisch

Hirschfeldia incana    Mediterranean hoary mustard,  Short podded mustard,  Summer mustard
invasive non-native
Perennial herb

BRASSICACEAE

Hirschfeldia incana
© 2017 Gary McDonald
Hirschfeldia incana
© 2017 Gary McDonald
Hirschfeldia incana
© 2022 Ron Vanderhoff

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

POACEAE

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

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

ASTERACEAE

Hypochoeris glabra
© 2020 Ron Vanderhoff
Hypochoeris glabra
© 2017 Gary McDonald
Hypochoeris glabra
© 2019 Ron Vanderhoff

Juglans californica    Southern black walnut,  Southern california walnut,  Southern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans californica
© 2014 Garth Wadsworth
Juglans californica
© 2022 Aaron Echols
Juglans californica
© 2022 Ron Vanderhoff

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

PLANTAGINACEAE

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

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

ASTERACEAE

Lactuca serriola
© 2017 Gary McDonald
Lactuca serriola
© 2017 Gary McDonald
Lactuca serriola
© 2017 Gary McDonald

Lamarckia aurea    Goldentop grass
non-native
Annual grass

POACEAE

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

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

LAMIACEAE

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

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

ASTERACEAE

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

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

FABACEAE

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

Lepidium virginicum var. pubescens    Robinson's pepper grass
native
Annual herb

BRASSICACEAE

Lepidium virginicum var. pubescens
© 2011 Ramona Robison
Lepidium virginicum var. pubescens
© 2018 Al Keuter
Lepidium virginicum var. pubescens
© 2018 Al Keuter

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

ASTERACEAE

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

native
Perennial herb

ASTERACEAE

Lessingia filaginifolia var. filaginifolia
© 2022 Mike Russler
Lessingia filaginifolia var. filaginifolia
© 2018 Ron Vanderhoff
Lessingia filaginifolia var. filaginifolia
© 2019 Diane Etchison

Leymus condensatus    Giant wild rye
native
Perennial grass

POACEAE

Leymus condensatus
© 2020 Ron Vanderhoff
Leymus condensatus
© 2024 Mel Letterman
Leymus condensatus
© 2020 Diane Etchison

Leymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Leymus triticoides
© 2024 Erin Bergman
Leymus triticoides
© 2021 Ron Vanderhoff
Leymus triticoides
© 2018 Rachelle Gray

Lobularia maritima    Sweet alyssum
invasive non-native
Perennial herb

BRASSICACEAE

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

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

POACEAE

Lolium perenne
© 2019 Ron Vanderhoff
Lolium perenne
© 2023 Ron Vanderhoff
Lolium perenne
© 2021 Ron Vanderhoff

Lomatium lucidum    Shiny biscuitroot,  Shiny lomatium
native
Perennial herb

APIACEAE

Lomatium lucidum
© 2019 Diane Etchison
Lomatium lucidum
© 2019 Diane Etchison
Lomatium lucidum
© 2015 Diane Etchison

Lonicera subspicata var. denudata    Chaparral honeysuckle,  Johnston's honeysuckle,  Santa barbara honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera subspicata var. denudata
© 2019 Diane Etchison
Lonicera subspicata var. denudata
© 2021 Ron Vanderhoff
Lonicera subspicata var. denudata
© 2019 Diane Etchison

Lotus heermannii    Heermann's lotus
native
Perennial herb

FABACEAE

Lotus heermannii
© 2019 Diane Etchison
Lotus heermannii
© 2010 James M. Andre
Lotus heermannii
© 2022 Irene Rosen

native
Perennial herb

FABACEAE

Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff
Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff
Lotus scoparius var. scoparius
© 2020 Ron Vanderhoff

Lotus strigosus    Strigose lotus
native
Annual herb

FABACEAE

Lotus strigosus
© 2016 Steve Matson
Lotus strigosus
© 2009 Steve Matson
Lotus strigosus
© 2016 Steve Matson

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

FABACEAE

Lupinus bicolor
© 2024 Mary Ann Machi
Lupinus bicolor
© 2022 Mike Russler
Lupinus bicolor
© 2024 Mary Ann Machi

Lupinus hirsutissimus    Stinging annual lupine,  Stinging lupine
native
Annual herb

FABACEAE

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

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

FABACEAE

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

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

FABACEAE

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

Malacothamnus fasciculatus    Chaparral bushmallow,  Southern coastal bushmallow
native
Shrub

MALVACEAE

Malacothamnus fasciculatus
© 2020 Aaron Echols
Malacothamnus fasciculatus
© 2020 Ron Vanderhoff
Malacothamnus fasciculatus
© 2018 Ron Vanderhoff

Malacothrix saxatilis var. tenuifolia    Cliff desertdandelion,  Short leaved cliff aster
native
Perennial herb

ASTERACEAE

Malacothrix saxatilis var. tenuifolia
© 2021 Ron Vanderhoff
Malacothrix saxatilis var. tenuifolia
© 2021 Ron Vanderhoff
Malacothrix saxatilis var. tenuifolia
© 2019 Diane Etchison

Malosma laurina    Laurel sumac
native
Tree, Shrub

ANACARDIACEAE

Malosma laurina
© 2015 Steven M Norris
Malosma laurina
© 2018 susan Bashore
Malosma laurina
© 2024 Bonnie Nickel

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

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

Marah macrocarpus    Chilicothe
native
Perennial herb, Vine

CUCURBITACEAE

Marah macrocarpus
© 2020 David Greenberger
Marah macrocarpus
© 2022 David Strauch
Marah macrocarpus
© 2021 david berman

Marrubium vulgare    White horehound
invasive non-native
Perennial herb

LAMIACEAE

Marrubium vulgare
© ©2013 Gary McDonald
Marrubium vulgare
© 2015 Diane Etchison
Marrubium vulgare
© 2018 Nancy Hamlett

Medicago lupulina    Black medick
non-native
Annual, Perennial herb

FABACEAE

Medicago lupulina
© 2020 Ron Vanderhoff
Medicago lupulina
© 2020 Ron Vanderhoff
Medicago lupulina
© 2020 Ron Vanderhoff

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

POACEAE

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

Mimulus aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2024 Steve Conger
Mimulus aurantiacus
© 2019 Gary McDonald

Mirabilis californica    California four o'clock
native
Perennial herb

NYCTAGINACEAE

Mirabilis californica
© 2014 Steve Matson
Mirabilis californica
© 2014 Steve Matson
Mirabilis californica
© 2014 Steve Matson

Nassella cernua    Nodding needle grass
native
Perennial grass

POACEAE

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

Navarretia atractyloides    Holly leaf navarretia,  Hollyleaf pincushionplant
native
Annual herb

POLEMONIACEAE

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

Nicotiana glauca    Tree tobacco
invasive non-native
Tree, Shrub

SOLANACEAE

Nicotiana glauca
© 2019 Jean B Henney
Nicotiana glauca
© 2017 Steve Matson
Nicotiana glauca
© 2017 Steve Matson

Opuntia littoralis    Coast prickly pear,  Coastal pricklypear,  Western prickly pear
native
Shrub (stem succulent)

CACTACEAE

Opuntia littoralis
© 2019 Diane Etchison
Opuntia littoralis
© 2022 Ron Vanderhoff
Opuntia littoralis
© 2024 Shelly Marshall

Opuntia parryi    Brownspined pricklypear,  Cane cholla
native
Perennial herb (stem succulent)

CACTACEAE

Opuntia parryi
© 2009 Thomas Stoughton
Opuntia parryi
© 2009 Stanley Spencer
Opuntia parryi
© 2008 Gary A. Monroe

Oxalis corniculata    Creeping wood sorrel,  Creeping woodsorrel,  Yellow sorrel
invasive non-native
Perennial herb

OXALIDACEAE

Oxalis corniculata
© 2022 Donald Burk
Oxalis corniculata
© 2022 Ron Vanderhoff
Oxalis corniculata
© 2021 Ron Vanderhoff

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

OXALIDACEAE

Oxalis pes-caprae
© 2015 Richard Chasey
Oxalis pes-caprae
© 2017 Angelique Herman
Oxalis pes-caprae
© 2019 Gary McDonald

Paeonia californica    California peony
native
Perennial herb

PAEONIACEAE

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

Parietaria hespera var. californica    California pellitory
native
Annual herb

URTICACEAE

Parietaria hespera var. californica
© 2003 Keir Morse
Parietaria hespera var. californica
© 2003 Keir Morse
Parietaria hespera var. californica
© 2003 Keir Morse

Pectocarya linearis    Sagebrush combseed
native
Annual herb

BORAGINACEAE

Pectocarya linearis
© 2014 Steve Matson
Pectocarya linearis
© 2014 Steve Matson
Pectocarya linearis
© 2014 Steve Matson

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

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

Pennisetum clandestinum    Kikuyu grass,  Kikuyugrass
invasive non-native
Perennial grass

POACEAE

Pennisetum clandestinum
© 2020 Ron Vanderhoff
Pennisetum clandestinum
© 2020 Ron Vanderhoff
Pennisetum clandestinum
© 2017 Josh Nuzzo

Pennisetum setaceum    Crimson fountaingrass,  Fountaingrass
invasive non-native
Perennial grass

POACEAE

Pennisetum setaceum
© 2023 Ron Vanderhoff
Pennisetum setaceum
© 2021 Steve Matson
Pennisetum setaceum
© 2021 Steve Matson

Penstemon spectabilis    Showy penstemon
native
Perennial herb

PLANTAGINACEAE

Penstemon spectabilis
© 2019 Matt Berger
Penstemon spectabilis
© 2009 Neal Kramer
Penstemon spectabilis
© 2022 Ron Vanderhoff

native
Fern

PTERIDACEAE

Pentagramma triangularis ssp. triangularis
© 2008 Steve Matson
Pentagramma triangularis ssp. triangularis
© 2008 Steve Matson
Pentagramma triangularis ssp. triangularis
© 2019 Gary McDonald

Phacelia cicutaria var. hispida    Caterpillar phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia cicutaria var. hispida
© 2017 Steve Matson
Phacelia cicutaria var. hispida
© 2017 Steve Matson
Phacelia cicutaria var. hispida
© 2017 Steve Matson

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

HYDROPHYLLACEAE

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

Phacelia minor    California bluebell,  Wild canterbury bells
native
Annual herb

HYDROPHYLLACEAE

Phacelia minor
© 2023 Julia Markey
Phacelia minor
© 2024 Ron Vanderhoff
Phacelia minor
© 2023 Julia Markey

Pholistoma auritum    Blue fiestaflower,  Fiesta flower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma auritum
© 2014 Steve Matson
Pholistoma auritum
© 2014 Steve Matson
Pholistoma auritum
© 2014 Steve Matson

Phoradendron macrophyllum    Big leaf mistletoe
native
Shrub (parasitic)

VISCACEAE

Phoradendron macrophyllum
© 2021 Ron Vanderhoff
Phoradendron macrophyllum
© 2021 Ron Vanderhoff
Phoradendron macrophyllum
© 2021 Ron Vanderhoff

Phoradendron villosum    Mistletoe
native
Shrub (parasitic)

VISCACEAE

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

Picris echioides    Bristly ox-tongue
invasive non-native
Annual, Perennial herb

ASTERACEAE

Picris echioides
© 2016 Hayley Ross
Picris echioides
© 2019 Rachelle Gray
Picris echioides
© 2012 Elizabeth Brusati

Piptatherum miliaceum    Smilo grass
invasive non-native
Perennial grass

POACEAE

Piptatherum miliaceum
© 2022 Donald Burk
Piptatherum miliaceum
© 2022 Ron Vanderhoff
Piptatherum miliaceum
© 2022 Donald Burk

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

BORAGINACEAE

Plagiobothrys canescens
© 2022 Catherine Chang
Plagiobothrys canescens
© 2016 Steve Matson
Plagiobothrys canescens
© 2016 Steve Matson

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

BORAGINACEAE

Plagiobothrys nothofulvus
© 2011 Steve Matson
Plagiobothrys nothofulvus
© 2011 Steve Matson
Plagiobothrys nothofulvus
© 2015 Steve Matson

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

PLANTAGINACEAE

Plantago erecta ssp. erecta
© 2008 Steve Matson
Plantago erecta ssp. erecta
© 2022 Steve Matson
Plantago erecta ssp. erecta
© 2022 Steve Matson

Platanus racemosa    California sycamore,  Western sycamore
native
Tree

PLATANACEAE

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

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

POACEAE

Poa annua
© 2021 Ron Vanderhoff
Poa annua
© 2022 John Rawlings
Poa annua
© 2015 Richard Chasey

Polygonum arenastrum    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum arenastrum
© 2016 Barbara Boethling
Polygonum arenastrum
© 2021 Ron Vanderhoff
Polygonum arenastrum
© 2014 Richard Chasey

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
© 2020 Ron Vanderhoff
Polypodium californicum
© 2021 Ron Vanderhoff
Polypodium californicum
© 2023 Keir Morse

Potentilla glandulosa    Sticky cinquefoil
native
Perennial herb

ROSACEAE

Potentilla glandulosa
© 2020 Mary Conway
Potentilla glandulosa
© 2019 Diane Etchison
Potentilla glandulosa
© 2020 Diane Etchison

Prunus ilicifolia    Holly leaf cherry,  Holly leaved cherry,  Hollyleaf cherry
native
Tree, Shrub

ROSACEAE

Prunus ilicifolia
© 2024 Lynn Overtree
Prunus ilicifolia
© 2019 Marisa Persaud
Prunus ilicifolia
© 2019 Bryant Baker

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

FAGACEAE

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

Quercus durata    Leather oak
native
Shrub

FAGACEAE

Quercus durata
© 2019 Cynthia Powell
Quercus durata
© 2019 David popp
Quercus durata
© 2019 Susan McDougall

Quercus durata var. gabrielensis    San Gabriel Mtns. leather oak
rare native
Shrub

FAGACEAE

Quercus durata var. gabrielensis
© 2019 Manzanita Dictionary
Quercus durata var. gabrielensis
© 2019 Manzanita Dictionary
Quercus durata var. gabrielensis
© 2013 Michael Long

Rafinesquia californica    California chicory,  California plumseed
native
Annual herb

ASTERACEAE

Rafinesquia californica
© 2023 Robert Steers
Rafinesquia californica
© 2021 Ron Vanderhoff
Rafinesquia californica
© 2017 Steve Matson

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

BRASSICACEAE

Raphanus sativus
© 2017 Lisa Miller
Raphanus sativus
© 2020 Ron Vanderhoff
Raphanus sativus
© 2023 Julia Markey

Rhamnus californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

Rhamnus californica ssp. californica
© 2015 Steve Matson
Rhamnus californica ssp. californica
© 2015 Steve Matson
Rhamnus californica ssp. californica
© 2019 Ron Vanderhoff

Rhamnus crocea    Redberry buckthorn
native
Shrub

RHAMNACEAE

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

Rhus integrifolia    Lemonade berry,  Lemonade sumac
native
Shrub

ANACARDIACEAE

Rhus integrifolia
© 2024 Mike Russler
Rhus integrifolia
© 2019 Ron Vanderhoff
Rhus integrifolia
© 2024 Mike Russler

Rhus trilobata    Fragrant sumac,  Skunk Bush
native
Shrub

ANACARDIACEAE

Rhus trilobata
© 2018 Steve Matson
Rhus trilobata
© 2018 Steve Matson
Rhus trilobata
© 2018 Steve Matson

Ribes amarum    Bitter gooseberry
native
Shrub

GROSSULARIACEAE

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

Ribes aureum var. gracillimum    Golden currant
native
Shrub

GROSSULARIACEAE

Ribes aureum var. gracillimum
© 2019 Matt Berger
Ribes aureum var. gracillimum
© 2022 Alexander S. Kunz
Ribes aureum var. gracillimum
© 2020 Alice Cummings

Ricinus communis    Castor bean,  Castorbean
invasive non-native
Shrub

EUPHORBIACEAE

Ricinus communis
© 2017 Henry DiRocco
Ricinus communis
© 2020 Aaron Echols
Ricinus communis
© 2022 Ron Vanderhoff

Rosa californica    California wild rose,  California wildrose
native
Shrub

ROSACEAE

Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2022 Suzanne L. Weakley
Rosa californica
© 2021 Sue Graue

Rumex crispus    Curly dock,  Curly leaved dock,  Rhubarb
invasive non-native
Perennial herb

POLYGONACEAE

Rumex crispus
© 2018 Tim Lewis
Rumex crispus
© 2019 Diane Etchison
Rumex crispus
© 2023 Ron Vanderhoff

Salix exigua    Narrow leaved willow,  Narrowleaf willow,  Sandbar willow
native
Tree, Shrub

SALICACEAE

Salix exigua
© 2015 Steve Matson
Salix exigua
© 2015 Steve Matson
Salix exigua
© 2015 Steve Matson

Salix gooddingii    Goodding's black willow,  Goodding's willow,  Gooding's willow
native
Tree

SALICACEAE

Salix gooddingii
© 2020 Ron Vanderhoff
Salix gooddingii
© 2021 Richard Spjut
Salix gooddingii
© 2020 Ron Vanderhoff

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

Salix lasiolepis
© 2022 Ron Vanderhoff
Salix lasiolepis
© 2022 Ron Vanderhoff
Salix lasiolepis
© 2020 Steve Matson

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

CHENOPODIACEAE

Salsola tragus
© 2017 Ron Vanderhoff
Salsola tragus
© 2018 Angelique Herman
Salsola tragus
© 2023 Cynthia Powell

Salvia apiana    White sage
native
Shrub

LAMIACEAE

Salvia apiana
© 2019 Hannah Garcia
Salvia apiana
© 2019 Ron Vanderhoff
Salvia apiana
© 2020 Ron Vanderhoff

Salvia mellifera    Black sage
native
Shrub

LAMIACEAE

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

Sambucus mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

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

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

APIACEAE

Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2023 Steve Conger
Sanicula crassicaulis
© 2021 Steve Laymon

native
Perennial herb

APOCYNACEAE

Sarcostemma cynanchoides ssp. hartwegii
© 2017 Bonnie Nickel
Sarcostemma cynanchoides ssp. hartwegii
© 2017 Alexander S. Kunz
Sarcostemma cynanchoides ssp. hartwegii
© 2019 Ron Vanderhoff

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

ANACARDIACEAE

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

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

POACEAE

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

Scutellaria tuberosa    Danny's skullcap,  Scullcap
native
Perennial herb

LAMIACEAE

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

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

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

ASTERACEAE

Senecio flaccidus var. douglasii
© 2018 Richard Spjut
Senecio flaccidus var. douglasii
© 2019 Ron Vanderhoff
Senecio flaccidus var. douglasii
© 2023 Helen Hancock

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

ASTERACEAE

Senecio vulgaris
© 2017 Barbara Boethling
Senecio vulgaris
© 2023 Ron Vanderhoff
Senecio vulgaris
© 2021 Toni Corelli

Setaria gracilis    Marsh bristlegrass
native
Perennial grass

POACEAE

Setaria gracilis
© 2018 Ron Vanderhoff
Setaria gracilis
© 2019 Ron Vanderhoff
Setaria gracilis
© 2023 Donald Burk

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

CARYOPHYLLACEAE

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

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

ASTERACEAE

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

Sisymbrium irio    London rocket
invasive non-native
Annual herb

BRASSICACEAE

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

Sisymbrium officinale    Hedge mustard,  Hedgemustard
non-native
Annual herb

BRASSICACEAE

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

Sisyrinchium bellum    Western blue eyed grass
native
Perennial herb

IRIDACEAE

Sisyrinchium bellum
© 2024 Steve Conger
Sisyrinchium bellum
© 2024 Ron Vanderhoff
Sisyrinchium bellum
© 2019 Stacie Wolny

Solanum douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

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

Solanum xanti    Chaparral nightshade,  Nightshade,  Purple nightshade
native
Perennial herb, Shrub

SOLANACEAE

Solanum xanti
© 2008 Steve Matson
Solanum xanti
© 2008 Steve Matson
Solanum xanti
© 2008 Steve Matson

Sonchus oleraceus    Common sow thistle,  Common sowthistle,  Sow thistle
non-native
Annual herb

ASTERACEAE

Sonchus oleraceus
© 2019 Diane Etchison
Sonchus oleraceus
© 2015 Jesse Rorabaugh
Sonchus oleraceus
© 2024 Ron Vanderhoff

Sorghum halepense    Johnsongrass
invasive non-native
Perennial grass

POACEAE

Sorghum halepense
© 2014 Robert F Norris
Sorghum halepense
© 2019 Jennifer Mo
Sorghum halepense
© 2020 Julie A. Kierstead

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

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

Stephanomeria virgata    Rod wirelettuce,  Tall stephanomeria,  Twiggy wreath plant
native
Annual herb

ASTERACEAE

Stephanomeria virgata
© 2019 Steven M Norris
Stephanomeria virgata
© 2022 Helen Hancock
Stephanomeria virgata
© 2019 Steven M Norris

Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

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

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

TAMARICACEAE

Tamarix ramosissima
© 2018 Larry E. Hendrickson
Tamarix ramosissima
© 2017 Barbara Boethling
Tamarix ramosissima
© 2022 Ron Vanderhoff

Toxicodendron diversilobum    Poison oak,  Poisonoak,  Western Poison Oak
native
Vine, Shrub

ANACARDIACEAE

Toxicodendron diversilobum
© 2020 Ron Vanderhoff
Toxicodendron diversilobum
© 2019 Randy Huey
Toxicodendron diversilobum
© 2021 Bryant Baker

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

ZYGOPHYLLACEAE

Tribulus terrestris
© 2015 Steve Matson
Tribulus terrestris
© 2020 Ron Vanderhoff
Tribulus terrestris
© 2020 Maura Hay

Trichostema lanceolatum    Vinegarweed
native
Annual herb

LAMIACEAE

Trichostema lanceolatum
© 2018 Ron Vanderhoff
Trichostema lanceolatum
© 2016 Nathan Mudry
Trichostema lanceolatum
© 2019 Aaron Echols

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson
Trifolium hirtum
© 2011 Steve Matson

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2024 Steve Conger
Trifolium willdenovii
© 2018 Stacie Wolny

Tropaeolum majus    Garden nasturtium,  Nasturtium
invasive non-native
Annual herb, Vine

TROPAEOLACEAE

Tropaeolum majus
© 2021 Julie A. Kierstead
Tropaeolum majus
© 2024 Mike Russler
Tropaeolum majus
© 2022 Ron Vanderhoff

Turricula parryi    Poodle-dog bush
native
Perennial herb

NAMACEAE

Turricula parryi
© 2019 Wendy Walker
Turricula parryi
© 2019 Bryant Baker
Turricula parryi
© 2019 Matt Berger

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

TYPHACEAE

Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson
Typha latifolia
© 2013 Steve Matson

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

URTICACEAE

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

Verbascum blattaria    Moth mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum blattaria
© 2024 Mike Russler
Verbascum blattaria
© 2019 Marisa Persaud
Verbascum blattaria
© 2019 Patrick Furtado

Veronica anagallis-aquatica    Water speedwell
non-native
Perennial herb

PLANTAGINACEAE

Veronica anagallis-aquatica
© 2015 Steve Matson
Veronica anagallis-aquatica
© 2015 Steve Matson
Veronica anagallis-aquatica
© 2015 Steve Matson

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

VIOLACEAE

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

Vulpia myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Vulpia myuros
© 2021 Aaron Echols
Vulpia myuros
© 2021 Ron Vanderhoff
Vulpia myuros
© 2022 John Rawlings

Vulpia octoflora    Sixweeks grass
native
Annual grass

POACEAE

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

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

Xanthium strumarium
© 2011 Steve Matson
Xanthium strumarium
© 2011 Steve Matson
Xanthium strumarium
© 2011 Steve Matson

Zigadenus fremontii    Fremont's star lily,  Fremont's death camas
native
Perennial herb

MELANTHIACEAE

Zigadenus fremontii
© 2024 Carissa Brands
Zigadenus fremontii
© 2024 Mary Conway
Zigadenus fremontii
© 2024 Lynn Overtree