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
2022 Emily R. Allen
Allium vineale
2017 dave hood
Allium vineale
2001 CDFA

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

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

ROSACEAE

Aphanes occidentalis
2019 Ron Vanderhoff
Aphanes occidentalis
2017 Ron Vanderhoff
Aphanes occidentalis
2021 David popp

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
2017 Diane Etchison
Asclepias eriocarpa
2019 Cliff Halverson
Asclepias eriocarpa
2014 Dan Cohn

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

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

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 Ron Vanderhoff

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

POACEAE

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

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
2020 Aaron Echols
Baccharis salicifolia
2023 Julia Markey

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
2019 Michael Mitchell
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
2022 Ron Vanderhoff
Bromus diandrus
2021 Richard Spjut
Bromus diandrus
2022 Ron Vanderhoff

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

POACEAE

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

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
2017 Diane Etchison
Camissonia bistorta
2019 Ken Hickman
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
2019 Cynthia Powell
Capsella bursa-pastoris
2022 Doug Allshouse

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

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

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
2023 Ron Vanderhoff
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
2019 Joe Engelbrecht
Clarkia purpurea ssp. quadrivulnera
2021 R.A. Chasey

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
2019 James Bailey
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
2017 Lisa Miller
Datura wrightii
2019 Ron Vanderhoff
Datura wrightii
2020 Mike McNamara

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

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
2019 Ron Vanderhoff

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

POACEAE

Echinochloa crus-galli
2016 Barbara Boethling
Echinochloa crus-galli
2022 R.A. Chasey
Echinochloa crus-galli
2008 Zoya Akulova

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
2022 Ron Vanderhoff

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

ASTERACEAE

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

Eriogonum elongatum var. elongatum    Long stemmed buckwheat
native
Perennial herb

POLYGONACEAE

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

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

POLYGONACEAE

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

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

ASTERACEAE

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

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

GERANIACEAE

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

Erodium 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
2005 Luigi Rignanese

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
2005 Steve Matson
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
2019 Bob Case
Helianthus annuus
2019 Bob Case
Helianthus annuus
2021 Mike Russler

Hemizonia fasciculata    Clustered tarweed
native
Annual herb

ASTERACEAE

Hemizonia fasciculata
2022 David Strauch
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
2017 Gary McDonald

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
2017 Aaron Echols
Juglans californica
2022 Aaron Echols
Juglans californica
2014 Garth Wadsworth

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
2022 John Rawlings
Leymus condensatus
2020 Diane Etchison

Leymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Leymus triticoides
2018 Ron Vanderhoff
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
2017 Gary McDonald
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
2021 Ron Vanderhoff

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

Lupinus hirsutissimus    Stinging annual lupine,  Stinging lupine
native
Annual herb

FABACEAE

Lupinus hirsutissimus
2020 Bryant Baker
Lupinus hirsutissimus
2020 Bryant Baker
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
2017 David Magney

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
2023 Ron Vanderhoff

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

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

Marah 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
2023 Bill Kress
Mimulus aurantiacus
2019 Stacie Wolny
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
2022 Ron Vanderhoff

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
2020 David Greenberger
Phacelia minor
2019 Matt Berger
Phacelia minor
2020 stephen montgomery

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
2009 Keir Morse
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
2022 David Strauch
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
2019 David Greenberger
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
2020 David Greenberger
Rhus integrifolia
2019 Ron Vanderhoff
Rhus integrifolia
2024 Ron Vanderhoff

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
2020 R.A. Chasey

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

Solanum douglasii    Douglas' nightshade,  Greenspot nightshade
native
Perennial herb

SOLANACEAE

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

Solanum 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
2016 Erik Larsen
Sorghum halepense
2019 Jennifer Mo
Sorghum halepense
2009 Zoya Akulova

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
2020 Ron Vanderhoff
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
2019 Ron Vanderhoff
Trifolium willdenovii
2019 Ron Vanderhoff
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
2023 Alaine Arslan
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
2022 Bob Sweatt

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