logo Calflora  Illustrated Plant List 
Red Hills
Sierra Nevada foothills

Tuolumne County

Davilla, B.; Clifton, G.; Taylor D.  / G.F. Hrusa checklists  (1984-01-01)

Record Detail Nearby Surveys What Grows Here?
331 PLANTS
Achyrachaena mollis    Blow-Wives
native
Annual herb

ASTERACEAE

Achyrachaena mollis
2015 Diane Etchison
Achyrachaena mollis
2022 Mike Russler
Achyrachaena mollis
2022 Mike Russler

native
Tree, Shrub

ROSACEAE

Adenostoma fasciculatum
2019 Steve Matson
Adenostoma fasciculatum
2019 Steve Matson
Adenostoma fasciculatum
2019 Steve Matson

Aegilops triuncialis    Barbed goatgrass
invasive non-native
Annual grass

POACEAE

Aegilops triuncialis
2008 Steve Matson
Aegilops triuncialis
2008 Steve Matson
Aegilops triuncialis
2018 Scott Oneto

Agoseris heterophylla    Annual agoseris,  Annual mountain dandelion
native
Annual herb

ASTERACEAE

Agoseris heterophylla
2020 Bob Sweatt
Agoseris heterophylla
2021 Lisa Berry
Agoseris heterophylla
2020 Bob Sweatt

Agrostis exarata var. monolepis    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

Agrostis exarata var. monolepis
2022 Teal Derrer
Agrostis exarata var. monolepis
2021 David popp
Agrostis exarata var. monolepis
2022 John Rawlings

Agrostis microphylla    Little leaf bentgrass,  Small leaf bentgrass,  Small leaved bentgrass
native
Annual grass

POACEAE

Agrostis microphylla
2023 John Rawlings
Agrostis microphylla
2023 John Rawlings
Agrostis microphylla
2023 John Rawlings

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

POACEAE

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

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

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

POACEAE

Aira caryophyllea
2005 Steve Matson
Aira caryophyllea
2005 Steve Matson
Aira caryophyllea
2005 Steve Matson

Alisma plantago-aquatica    Northern water plantain
native
Perennial herb (aquatic)

ALISMATACEAE

Alisma plantago-aquatica
2023 Ken-ichi Ueda
Alisma plantago-aquatica
2022 R.A. Chasey
Alisma plantago-aquatica
2019 Gena Bentall

Allium cratericola    Cascade onion
native
Perennial herb (bulb)

ALLIACEAE

Allium cratericola
2016 BOB CASE
Allium cratericola
2022 Cynthia Powell
Allium cratericola
2017 David Greenberger

Allium peninsulare    Mexicali onion
native
Perennial herb (bulb)

ALLIACEAE

Allium peninsulare
2022 Rhonda Allen
Allium peninsulare
2019 Diane Etchison
Allium peninsulare
2019 Diane Etchison

Allium tuolumnense    Rawhide hill onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium tuolumnense
2016 Patrick Congdon
Allium tuolumnense
2012 Dylan Neubauer
Allium tuolumnense
2011 Barry Breckling

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

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

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

AMARANTHACEAE

Amaranthus blitoides
2020 Ron Vanderhoff
Amaranthus blitoides
2023 Helen Hancock
Amaranthus blitoides
2019 Camille Nowell

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

Ancistrocarphus filagineus    False neststraw,  Woolly fishhooks
native
Annual herb

ASTERACEAE

Ancistrocarphus filagineus
2020 Matt Berger
Ancistrocarphus filagineus
2019 Gerald Carr
Ancistrocarphus filagineus
2021 Jacob Smith

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

native
Annual herb

PLANTAGINACEAE

Antirrhinum vexillo-calyculatum ssp. breweri
2020 Stacie Wolny
Antirrhinum vexillo-calyculatum ssp. breweri
2017 Michelle Bosch
Antirrhinum vexillo-calyculatum ssp. breweri
2020 Stacie Wolny

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

Arceuthobium campylopodum    Golden mistletoe,  Pine dwarf mistletoe,  Pine mistletoe
native
Perennial herb (parasitic)

VISCACEAE

Arceuthobium campylopodum
2016 Richard Spjut
Arceuthobium campylopodum
2020 Charles Russell
Arceuthobium campylopodum
2021 Mikhela Aiken

native
Shrub

ERICACEAE

Arctostaphylos manzanita ssp. manzanita
2021 R.A. Chasey
Arctostaphylos manzanita ssp. manzanita
2018 Adam Chasey
Arctostaphylos manzanita ssp. manzanita
2015 James Gonsman

Arctostaphylos viscida ssp. mariposa    Mariposa manzanita
native
Tree, Shrub

ERICACEAE

Arctostaphylos viscida ssp. mariposa
2017 Sarah Williams
Arctostaphylos viscida ssp. mariposa
2024 Mike Russler
Arctostaphylos viscida ssp. mariposa
2019 Cynthia Powell

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

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

Blennosperma nanum    Common stickyseed,  Yellow carpet
native
Annual herb

ASTERACEAE

Blennosperma nanum
2022 James Adams
Blennosperma nanum
2023 R.A. Chasey
Blennosperma nanum
2019 David popp

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

POACEAE

Briza minor
2023 R.A. Chasey
Briza minor
2019 Gary McDonald
Briza minor
2019 Gary McDonald

Brodiaea elegans    Harvest brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea elegans
2019 Joe Engelbrecht
Brodiaea elegans
2009 Bob Case
Brodiaea elegans
2009 BOB CASE

Bromus arizonicus    Arizona brome
native
Annual grass

POACEAE

Bromus arizonicus
2017 Neil Uelman
Bromus arizonicus
2017 Neil Uelman
Bromus arizonicus
2017 Neil Uelman

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

non-native
Annual grass

POACEAE

Bromus madritensis ssp. madritensis
2015 Chris Jaster
Bromus madritensis ssp. madritensis
2015 Chris Jaster
Bromus madritensis ssp. madritensis
2015 Chris Jaster

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

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

POACEAE

Bromus sterilis
2021 John Rawlings
Bromus sterilis
2023 John Rawlings
Bromus sterilis
2023 John Rawlings

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 albus    White fairy lantern,  White globe lily
native
Perennial herb

LILIACEAE

Calochortus albus
2019 David Greenberger
Calochortus albus
2019 Cynthia Powell
Calochortus albus
2009 Bob Case

Calochortus invenustus    Plain mariposa lily
native
Perennial herb

LILIACEAE

Calochortus invenustus
Geoff Burleigh
Calochortus invenustus
Geoff Burleigh
Calochortus invenustus
2012 Ron Vanderhoff

Calochortus superbus    Yellow mariposa
native
Perennial herb

LILIACEAE

Calochortus superbus
2017 Eric Schmidt
Calochortus superbus
2005 BOB CASE
Calochortus superbus
2023 Mike Russler

Calochortus venustus    Butterfly mariposa lily
native
Perennial herb

LILIACEAE

Calochortus venustus
2014 Steve Matson
Calochortus venustus
2012 Zack Abbey
Calochortus venustus
2023 Rhonda Allen

Calycadenia mollis    Soft calycadenia,  Soft western rosinweed
native
Annual herb

ASTERACEAE

Calycadenia mollis
2021 Mike Russler
Calycadenia mollis
2021 Mike Russler
Calycadenia mollis
2021 Mike Russler

Calycadenia multiglandulosa    Rosin weed,  Sticky calycadenia,  Sticky western rosinweed
native
Annual herb

ASTERACEAE

Calycadenia multiglandulosa
2018 Alice Cummings
Calycadenia multiglandulosa
2021 R.A. Chasey
Calycadenia multiglandulosa
2019 Alice Cummings

Calycadenia truncata    Rosin weed
native
Annual herb

ASTERACEAE

Calycadenia truncata
2016 Steve Matson
Calycadenia truncata
2016 Steve Matson
Calycadenia truncata
2023 Helen Hancock

Calycanthus occidentalis    Spicebush,  Sweet shrub
native
Shrub

CALYCANTHACEAE

Calycanthus occidentalis
2015 Tim Miller
Calycanthus occidentalis
2019 Robert Nance
Calycanthus occidentalis
2018 Matt Berger

Calystegia occidentalis ssp. fulcrata    Chaparral false bindweed,  Sonora morning glory
native
Perennial herb

CONVOLVULACEAE

Calystegia occidentalis ssp. fulcrata
2022 Cynthia Powell
Calystegia occidentalis ssp. fulcrata
2022 Cynthia Powell
Calystegia occidentalis ssp. fulcrata
2014 Jean Pawek

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

BRASSICACEAE

Capsella bursa-pastoris
2008 Steve Matson
Capsella bursa-pastoris
2019 Cynthia Powell
Capsella bursa-pastoris
2022 Doug Allshouse

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

BRASSICACEAE

Cardamine oligosperma
2008 Steve Matson
Cardamine oligosperma
2008 Steve Matson
Cardamine oligosperma
2008 Steve Matson

Carex densa    Dense sedge,  Sedge
native
Perennial grasslike herb

CYPERACEAE

Carex densa
2023 John Rawlings
Carex densa
2022 R.A. Chasey
Carex densa
2014 Eric Wrubel

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

CYPERACEAE

Carex nudata
2022 R.A. Chasey
Carex nudata
2016 David Greenberger
Carex nudata
2014 John Malpas

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

CYPERACEAE

Carex praegracilis
2020 Ken Hickman
Carex praegracilis
2020 John Rawlings
Carex praegracilis
2020 Steve Matson

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

CYPERACEAE

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

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

CYPERACEAE

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

Castilleja affinis    Indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis
2019 Aleksandra Evert
Castilleja affinis
2019 Diane Etchison
Castilleja affinis
2019 Diane Etchison

Castilleja applegatei    Pine indian paintbrush,  Wavy leaf paintbrush,  Wavy leaved paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja applegatei
2019 Diane Etchison
Castilleja applegatei
2019 Diane Etchison
Castilleja applegatei
2020 David Greenberger

Castilleja attenuata    Narrow leaved owl's clover,  Valley tassels
native
Annual herb

OROBANCHACEAE

Castilleja attenuata
2009 BOB CASE
Castilleja attenuata
2023 R.A. Chasey
Castilleja attenuata
2022 Mike Russler

Castilleja foliolosa    Texas paintbrush,  Woolly indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja foliolosa
2019 Ron Vanderhoff
Castilleja foliolosa
2019 Diane Etchison
Castilleja foliolosa
2019 Diane Etchison

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

OROBANCHACEAE

Castilleja minor ssp. spiralis
2023 Rhonda Allen
Castilleja minor ssp. spiralis
2019 Ron Vanderhoff
Castilleja minor ssp. spiralis
2019 Matt Berger

Castilleja subinclusa    Franciscan paint brush,  Longleaf indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja subinclusa
2022 Dianne Lake
Castilleja subinclusa
2022 Zoya Akulova-Barlow
Castilleja subinclusa
2019 David popp

Ceanothus cuneatus    Buck brush,  Wedgeleaf ceanothus
native
Shrub

RHAMNACEAE

Ceanothus cuneatus
2021 Steve Matson
Ceanothus cuneatus
2021 Steve Matson
Ceanothus cuneatus
2021 Steve Matson

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

Centaurium venustum    California Centaury, Charming Centaury
native
Annual herb

GENTIANACEAE

Centaurium venustum
2019 Diane Etchison
Centaurium venustum
2021 Bonnie Nickel
Centaurium venustum
2019 Diane Etchison

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

Ceratophyllum demersum    Coon's tail,  Hornwort
native
Perennial herb

CERATOPHYLLACEAE

Ceratophyllum demersum
2023 Zoya Akulova-Barlow
Ceratophyllum demersum
2018 Ron Vanderhoff
Ceratophyllum demersum
2022 Donald Burk

Chaenactis glabriuscula    Common yellow chaenactis,  Yellow pincushion
native
Annual herb

ASTERACEAE

Chaenactis glabriuscula
2019 Marisa Persaud
Chaenactis glabriuscula
2016 Steve Matson
Chaenactis glabriuscula
2019 Marisa Persaud

Chamaesyce ocellata    Contura creek spurge
native
Annual herb

EUPHORBIACEAE

Chamaesyce ocellata
2005 Steve Matson
Chamaesyce ocellata
2005 Steve Matson
Chamaesyce ocellata
2023 Donald Burk

Chamomilla suaveolens    Pineapple weed
native
Annual herb

ASTERACEAE

Chamomilla suaveolens
2008 Steve Matson
Chamomilla suaveolens
2008 Steve Matson
Chamomilla suaveolens
2018 Stacie Wolny

Chlorogalum grandiflorum    Red hills soap plant,  Red hills soaproot
rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum grandiflorum
2019 David Greenberger
Chlorogalum grandiflorum
2022 Cynthia Powell
Chlorogalum grandiflorum
2022 Cynthia Powell

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

Chorizanthe membranacea    Pink spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe membranacea
2008 Keir Morse
Chorizanthe membranacea
2008 Keir Morse
Chorizanthe membranacea
2023 Helen Hancock

Chorizanthe polygonoides    Knotweed spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe polygonoides
2017 R.A. Chasey
Chorizanthe polygonoides
2010 Neal Kramer
Chorizanthe polygonoides
2018 Hunter Breck

Cicendia quadrangularis    Common microcalis,  Oregon timwort
native
Annual herb

GENTIANACEAE

Cicendia quadrangularis
2020 Ken Hickman
Cicendia quadrangularis
2022 Charles Russell
Cicendia quadrangularis
2015 Judy and Barry Breckling

Cirsium occidentale var. californicum    Bigelow thistle,  California thistle,  Cobwebby thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. californicum
2021 Amber Bedgood
Cirsium occidentale var. californicum
2021 Mike Russler
Cirsium occidentale var. californicum
2013 James Gonsman

Clarkia arcuata    Glandular clarkia,  Glandular fairyfan
native
Annual herb

ONAGRACEAE

Clarkia arcuata
2020 Steve Laymon
Clarkia arcuata
2021 Donald Burk
Clarkia arcuata
2022 Mike Russler

Clarkia biloba ssp. biloba    Two lobed clarkia,  Twolobe clarkia
native
Annual herb

ONAGRACEAE

Clarkia biloba ssp. biloba
2019 David Greenberger
Clarkia biloba ssp. biloba
2020 Steve Laymon
Clarkia biloba ssp. biloba
2022 Cynthia Powell

Clarkia purpurea ssp. purpurea    Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea ssp. purpurea
2020 R.A. Chasey
Clarkia purpurea ssp. purpurea
2018 Steve Laymon
Clarkia purpurea ssp. purpurea
2020 R.A. Chasey

Clarkia williamsonii    Fort Miller clarkia,  Fort Miller fairyfan
native
Annual herb

ONAGRACEAE

Clarkia williamsonii
2019 Alison Sheehey
Clarkia williamsonii
2020 Shane Hanofee
Clarkia williamsonii
2019 Alison Sheehey

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

MONTIACEAE

Claytonia exigua ssp. exigua
2019 Steve Matson
Claytonia exigua ssp. exigua
2019 Steve Matson
Claytonia exigua ssp. exigua
2019 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 lasiantha    Chaparral clematis,  Pipestem
native
Perennial herb, Vine

RANUNCULACEAE

Clematis lasiantha
2008 Steve Matson
Clematis lasiantha
2018 Steve Matson
Clematis lasiantha
2018 Steve Matson

Collinsia sparsiflora var. collina    Hillside collinsia
native
Annual herb

PLANTAGINACEAE

Collinsia sparsiflora var. collina
2021 Steve Matson
Collinsia sparsiflora var. collina
2021 Steve Matson
Collinsia sparsiflora var. collina
2015 Steve Matson

Collinsia sparsiflora var. sparsiflora    Few flowered collinsia
native
Annual herb

PLANTAGINACEAE

Collinsia sparsiflora var. sparsiflora
2015 James Gonsman
Collinsia sparsiflora var. sparsiflora
2024 R.A. Chasey
Collinsia sparsiflora var. sparsiflora
2021 Charles Russell

Collinsia tinctoria    Sticky chinese houses,  Tincture plant
native
Annual herb

PLANTAGINACEAE

Collinsia tinctoria
2016 Steve Matson
Collinsia tinctoria
2021 Mike Russler
Collinsia tinctoria
2022 R.A. Chasey

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

Cordylanthus tenuis ssp. tenuis    Slender bird's beak
native
Annual herb

OROBANCHACEAE

Cordylanthus tenuis ssp. tenuis
2019 Bob Sweatt
Cordylanthus tenuis ssp. tenuis
2019 Matt Berger
Cordylanthus tenuis ssp. tenuis
2019 R.A. Chasey

Coreopsis stillmanii    Stillman's coreopsis
native
Annual herb

ASTERACEAE

Coreopsis stillmanii
2020 Matt Berger
Coreopsis stillmanii
2020 Matt Berger
Coreopsis stillmanii
2020 Matt Berger

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

CRASSULACEAE

Crassula aquatica
2019 Ron Vanderhoff
Crassula aquatica
2022 Ken-ichi Ueda
Crassula aquatica
2022 Catherine Chang

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

Cryptantha flaccida    Beaked cryptantha,  Flaccid cryptantha,  Weakstem cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha flaccida
2018 Alice Cummings
Cryptantha flaccida
2016 Steve Matson
Cryptantha flaccida
2016 Steve Matson

Cryptantha intermedia    Clearwater cryptantha,  Common cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha intermedia
2020 Ron Vanderhoff
Cryptantha intermedia
2019 Ron Vanderhoff
Cryptantha intermedia
2019 Ron Vanderhoff

Cryptantha mariposae    Mariposa cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha mariposae
2010 Robin Kent
Cryptantha mariposae
2011 Steve Matson
Cryptantha mariposae
2013 Jean Pawek

Cryptantha muricata    Pointed cryptantha,  Prickly cryptantha,  Prickly popcorn flower
native
Annual herb

BORAGINACEAE

Cryptantha muricata
2021 R.A. Chasey
Cryptantha muricata
2019 Marisa Persaud
Cryptantha muricata
2019 Marisa Persaud

Cryptantha rostellata    Beaked cryptantha
rare native
Annual herb

BORAGINACEAE

Cryptantha rostellata
2018 Gerald Carr
Cryptantha rostellata
2018 Gerald Carr
Cryptantha rostellata
2018 Gerald Carr

Cuscuta sp.    Small Tree-Mallow


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 eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

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

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

Daucus pusillus
2019 Diane Etchison
Daucus pusillus
2022 David Wolfson
Daucus pusillus
2021 Ken Lunders

Delphinium hansenii    Eldorado larkspur,  Hansen's larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium hansenii
2022 Steve Matson
Delphinium hansenii
2022 Steve Matson
Delphinium hansenii
2014 Steve Matson

Delphinium hesperium    Foothill larkspur,  Western larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium hesperium
2022 R.A. Chasey
Delphinium hesperium
2020 Fred Melgert / Carla Hoegen
Delphinium hesperium
2020 Fred Melgert / Carla Hoegen

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

Deschampsia danthonioides
2019 Paul Aigner
Deschampsia danthonioides
2003 Steve Matson
Deschampsia danthonioides
2018 Emily Allen

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

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

Dichelostemma multiflorum    Many flowered brodiaea,  Manyflower brodiaea,  Roundtooth snakelily
native
Perennial herb

THEMIDACEAE

Dichelostemma multiflorum
2019 David popp
Dichelostemma multiflorum
2011 Steve Matson
Dichelostemma multiflorum
2019 John Rawlings

Dodecatheon hendersonii    Mosquito bill
native
Perennial herb

PRIMULACEAE

Dodecatheon hendersonii
2020 BLM Redding Field Office
Dodecatheon hendersonii
2017 John Game
Dodecatheon hendersonii
2022 Jamie Spielmann

Draba verna    Spring draba,  Whitlow grass,  Whitlowgrass
non-native
Annual herb

BRASSICACEAE

Draba verna
2011 Steve Matson
Draba verna
2004 Steve Matson
Draba verna
2016 Steve Matson

Dudleya cymosa    Canyon dudleya,  Canyon liveforever,  Rock lettuce
native
Perennial herb

CRASSULACEAE

Dudleya cymosa
2019 Steve Matson
Dudleya cymosa
2019 Steve Matson
Dudleya cymosa
2020 Kristin Sabo

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

CYPERACEAE

Eleocharis macrostachya
2023 Ron Vanderhoff
Eleocharis macrostachya
2023 Ron Vanderhoff
Eleocharis macrostachya
2003 Steve Matson

Eleocharis rostellata    Beaked spikerush,  Walking sedge
native
Perennial grasslike herb

CYPERACEAE

Eleocharis rostellata
2015 Steve Matson
Eleocharis rostellata
2015 Steve Matson
Eleocharis rostellata
2015 Steve Matson

Elymus multisetus    Big squirreltail grass
native
Perennial grass

POACEAE

Elymus multisetus
2019 Ron Vanderhoff
Elymus multisetus
2023 Helen Hancock
Elymus multisetus
2021 Denise Defreese

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

ONAGRACEAE

Epilobium densiflorum
2009 BOB CASE
Epilobium densiflorum
2021 Mike Russler
Epilobium densiflorum
2022 Ken-ichi Ueda

Epilobium minutum    Chaparral willowherb,  Desert willow herb,  Little willowherb
native
Annual herb

ONAGRACEAE

Epilobium minutum
2017 Michael Mitchell
Epilobium minutum
2021 R.A. Chasey
Epilobium minutum
2019 Ken Lunders

Ericameria arborescens    Golden fleece,  Goldenfleece
native
Shrub

ASTERACEAE

Ericameria arborescens
2019 Bryant Baker
Ericameria arborescens
2019 Bryant Baker
Ericameria arborescens
2015 Hayley Ross

Eriodictyon californicum    California yerba santa,  Yerba santa
native
Shrub

NAMACEAE

Eriodictyon californicum
2023 Suzanne L. Weakley
Eriodictyon californicum
2022 BOB CASE
Eriodictyon californicum
2020 Julie A. Kierstead

Eriogonum nudum var. nudum    Naked buckwheat,  Naked Wild Buckwheat,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum var. nudum
2021 Mike Russler
Eriogonum nudum var. nudum
2021 Mike Russler
Eriogonum nudum var. nudum
2021 Mike Russler

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

POLYGONACEAE

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

Eriogonum tripodum    Tripod buckwheat
rare native
Shrub

POLYGONACEAE

Eriogonum tripodum
2023 Mike Russler
Eriogonum tripodum
2023 Mike Russler
Eriogonum tripodum
2021 Scott Yarger

Eriogonum vimineum    Wicker buckwheat,  Wicker stemmed eriogonum,  Wickerstem buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum vimineum
2019 David Greenberger
Eriogonum vimineum
2019 David popp
Eriogonum vimineum
2008 Keir Morse

Eriophyllum lanatum var. grandiflorum    Common woolly sunflower,  Large flowered woolly sunflower
native
Perennial herb

ASTERACEAE

Eriophyllum lanatum var. grandiflorum
2020 John Dittes
Eriophyllum lanatum var. grandiflorum
2023 Anna Prang
Eriophyllum lanatum var. grandiflorum
2021 Steve Laymon

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

Eschscholzia caespitosa    Foothill poppy,  Tufted eschscholzia,  Tufted poppy
native
Annual herb

PAPAVERACEAE

Eschscholzia caespitosa
2019 Ron Vanderhoff
Eschscholzia caespitosa
2021 Lisa Berry
Eschscholzia caespitosa
2022 Cynthia Powell

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica
2019 Dee Shea Himes
Eschscholzia californica
2021 Ron Vanderhoff
Eschscholzia californica
2019 Amy Rapport

Eschscholzia lobbii    Frying pans,  Fryingpans
native
Annual herb

PAPAVERACEAE

Eschscholzia lobbii
2022 Steve Matson
Eschscholzia lobbii
2022 Steve Matson
Eschscholzia lobbii
2022 Steve Matson

Euphorbia spathulata    Reticulate seeded spurge,  Warty spurge
native
Annual herb

EUPHORBIACEAE

Euphorbia spathulata
2021 R.A. Chasey
Euphorbia spathulata
2014 Steve Matson
Euphorbia spathulata
2014 Steve Matson

Filago californica    California cottonrose
native
Annual herb

ASTERACEAE

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

Filago gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Filago gallica
2017 Barbara Boethling
Filago gallica
2023 Ron Vanderhoff
Filago gallica
2023 Ron Vanderhoff

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

RUBIACEAE

Galium aparine
2020 Ron Vanderhoff
Galium aparine
2005 Steve Matson
Galium aparine
2020 Ron Vanderhoff

Galium bolanderi    Bolander galium,  Bolander's bedstraw
native
Perennial herb

RUBIACEAE

Galium bolanderi
2020 Neal Kramer
Galium bolanderi
2015 Steve Matson
Galium bolanderi
2015 Steve Matson

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

RUBIACEAE

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

Galium porrigens var. tenue    Graceful bedstraw
native
Vine, Shrub

RUBIACEAE

Galium porrigens var. tenue
2005 Steve Matson
Galium porrigens var. tenue
2005 Steve Matson
Galium porrigens var. tenue
2005 Steve Matson

Gastridium ventricosum    Nit grass
non-native
Annual grass

POACEAE

Gastridium ventricosum
2020 Ron Vanderhoff
Gastridium ventricosum
2020 Ron Vanderhoff
Gastridium ventricosum
2001 Julie Kierstead Nelson

Geranium carolinianum    Carolina geranium
native
Annual herb

GERANIACEAE

Geranium carolinianum
2021 Ron Vanderhoff
Geranium carolinianum
2024 Ron Vanderhoff
Geranium carolinianum
2024 Ron Vanderhoff

Gilia capitata    Blue field gilia,  Bluehead gilia
native
Annual herb

POLEMONIACEAE

Gilia capitata
2011 Gerald Carr
Gilia capitata
2022 Ron Vanderhoff
Gilia capitata
2011 Gerald Carr

Gilia tricolor ssp. diffusa    Bird's eye gilia,  Bird's eyes
native
Annual herb

POLEMONIACEAE

Gilia tricolor ssp. diffusa
2022 Steve Matson
Gilia tricolor ssp. diffusa
2022 Steve Matson
Gilia tricolor ssp. diffusa
2022 Steve Matson

Githopsis pulchella ssp. serpentinicola    Serpentine bluecup,  Sierra bluecup
rare native
Annual herb

CAMPANULACEAE

Githopsis pulchella ssp. serpentinicola
2022 Mike Russler
Githopsis pulchella ssp. serpentinicola
2022 Mike Russler
Githopsis pulchella ssp. serpentinicola
2022 Mike Russler

Githopsis specularioides    Common bluecup,  Venus' looking glass
native
Annual herb

CAMPANULACEAE

Githopsis specularioides
2016 Steve Matson
Githopsis specularioides
2016 Steve Matson
Githopsis specularioides
2021 Mike Russler

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

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

Gnaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

Gnaphalium stramineum
2017 Gary McDonald
Gnaphalium stramineum
2017 Gary McDonald
Gnaphalium stramineum
2017 Gary McDonald

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

ASTERACEAE

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

Helenium bolanderi    Bolander's sneezeweed,  Coastal sneezeweed
native
Perennial herb

ASTERACEAE

Helenium bolanderi
2022 R.A. Chasey
Helenium bolanderi
2020 Mary Sue Ittner
Helenium bolanderi
2020 Mary Sue Ittner

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 sp.    Small Tree-Mallow


Hesperevax acaulis    Dwarf evax,  Stemless dwarf cudweed
native
Annual herb

ASTERACEAE

Hesperevax acaulis
2022 joaquin hale
Hesperevax acaulis
2022 Ken Hickman
Hesperevax acaulis
2022 joaquin hale

Hesperolinon micranthum    Common dwarf flax,  Small flower western flax,  Small flowered dwarf flax
native
Annual herb

LINACEAE

Hesperolinon micranthum
2020 David Greenberger
Hesperolinon micranthum
2023 R.A. Chasey
Hesperolinon micranthum
2021 R.A. Chasey

Heterocodon rariflorum    Few flowered heterocodon,  Rareflower heterocodon,  Western pear flower
native
Annual herb

CAMPANULACEAE

Heterocodon rariflorum
2022 Steve Matson
Heterocodon rariflorum
2022 Steve Matson
Heterocodon rariflorum
2022 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

Heuchera micrantha var. erubescens    Alum root,  Crevice alumroot
native
Perennial herb

SAXIFRAGACEAE

Heuchera micrantha var. erubescens
2008 Steve Matson
Heuchera micrantha var. erubescens
2008 Steve Matson
Heuchera micrantha var. erubescens
2008 Steve Matson

Hoita macrostachya    California hemp,  Large leather root
native
Perennial herb

FABACEAE

Hoita macrostachya
2020 Ron Vanderhoff
Hoita macrostachya
2022 Natalie McNear
Hoita macrostachya
2021 Julie King

Holocarpha virgata    Narrow tarplant,  Pitgland tarweed,  Yellowflower tarweed
native
Annual herb

ASTERACEAE

Holocarpha virgata
2019 Steve Matson
Holocarpha virgata
2019 Steve Matson
Holocarpha virgata
2019 stephen rosenthal

Holozonia filipes    Greene's white crown,  Holozonia,  Whitecrown
native
Perennial herb

ASTERACEAE

Holozonia filipes
2015 Steve Matson
Holozonia filipes
2022 R.A. Chasey
Holozonia filipes
2023 R.A. Chasey

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

POACEAE

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

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

POACEAE

Hordeum marinum ssp. gussoneanum
2018 Carolyn
Hordeum marinum ssp. gussoneanum
2020 Paul Aigner
Hordeum marinum ssp. gussoneanum
2017 Toni Corelli

Hordeum murinum ssp. glaucum    Blue foxtail,  Smooth barley
non-native
Annual grass

POACEAE

Hordeum murinum ssp. glaucum
2018 Gary McDonald
Hordeum murinum ssp. glaucum
2019 Gary McDonald
Hordeum murinum ssp. glaucum
2017 Gary McDonald

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

POACEAE

Hordeum murinum ssp. leporinum
2022 Ron Vanderhoff
Hordeum murinum ssp. leporinum
2021 Al Keuter
Hordeum murinum ssp. leporinum
2021 Ron Vanderhoff

Horkelia californica ssp. dissita    California horkelia
native
Perennial herb

ROSACEAE

Horkelia californica ssp. dissita
2019 David Greenbeger
Horkelia californica ssp. dissita
2018 Steven Perry
Horkelia californica ssp. dissita
2022 Jim Xerogeanes

Hypericum perforatum    Common st. johnswort,  Klamath weed,  Klamathweed
invasive non-native
Perennial herb

HYPERICACEAE

Hypericum perforatum
2020 Bob Sweatt
Hypericum perforatum
2018 stephen rosenthal
Hypericum perforatum
2020 Bob Sweatt

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

ASTERACEAE

Hypochaeris glabra
2020 Ron Vanderhoff
Hypochaeris glabra
2017 Gary McDonald
Hypochaeris glabra
2019 Ron Vanderhoff

Isoetes howellii    Howell's quillwort,  Quillwort
native

ISOETACEAE

Isoetes howellii
2022 Ken-ichi Ueda
Isoetes howellii
2022 Ken-ichi Ueda
Isoetes howellii
2023 R.A. Chasey

Juglans californica var. hindsii    Northern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans californica var. hindsii
2016 Steve Matson
Juglans californica var. hindsii
2016 Steve Matson
Juglans californica var. hindsii
2018 Ron Vanderhoff

Juncus balticus    Baltic rush,  Wire rush
native
Perennial grasslike herb

JUNCACEAE

Juncus balticus
2015 Steve Matson
Juncus balticus
2015 Steve Matson
Juncus balticus
2019 Bonnie Nickel

Juncus bufonius    Common toad rush,  Toad rush
native
Annual grasslike herb

JUNCACEAE

Juncus bufonius
2022 Steve Matson
Juncus bufonius
2022 Steve Matson
Juncus bufonius
2022 Steve Matson

Juncus capitatus    Leafy bracted dwarf rush,  Leafybract dwarf rush
non-native
Annual grasslike herb

JUNCACEAE

Juncus capitatus
2022 Emily R. Allen
Juncus capitatus
2018 R.A. Chasey
Juncus capitatus
2016 Toni Corelli

Juncus mexicanus    Mexican rush
native
Perennial grasslike herb

JUNCACEAE

Juncus mexicanus
2004 Steve Matson

Juncus oxymeris    Pointed rush
native
Perennial grasslike herb

JUNCACEAE

Juncus oxymeris
2016 Steve Matson
Juncus oxymeris
2016 Steve Matson
Juncus oxymeris
2016 Steve Matson

Juncus xiphioides    Iris leaved rush,  Irisleaf rush
native
Perennial grasslike herb

JUNCACEAE

Juncus xiphioides
2016 Erik Larsen
Juncus xiphioides
2017 Ron Vanderhoff
Juncus xiphioides
2023 R.A. Chasey

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

ASTERACEAE

Lactuca saligna
2021 Don Hollander
Lactuca saligna
2019 Stacie Wolny
Lactuca saligna
2021 Don Hollander

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

ASTERACEAE

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

Lagophylla glandulosa    Glandular hareleaf
native
Annual herb

ASTERACEAE

Lagophylla glandulosa
2021 Steve Laymon
Lagophylla glandulosa
2021 Steve Laymon
Lagophylla glandulosa
2022 Cynthia Powell

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

Layia fremontii    Fremont layia,  Fremont's tidy tips,  Fremont's tidytips
native
Annual herb

ASTERACEAE

Layia fremontii
2021 Steve Matson
Layia fremontii
2022 Steve Matson
Layia fremontii
2021 Steve Matson

Lepidium dictyotum    Alkali pepperweed,  Net pepper grass
native
Annual herb

BRASSICACEAE

Lepidium dictyotum
2023 Catherine Chang
Lepidium dictyotum
2023 Catherine Chang
Lepidium dictyotum
2022 Dianne Lake

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

BRASSICACEAE

Lepidium nitidum
2021 Steve Matson
Lepidium nitidum
2016 Steve Matson
Lepidium nitidum
2021 Steve Matson

Lepidium oblongum    Veiny pepper grass,  Veiny pepperweed,  Wayside peppergrass
native
Annual herb

BRASSICACEAE

Lepidium oblongum
2017 Ron Vanderhoff
Lepidium oblongum
2014 Steve Matson
Lepidium oblongum
2017 Ron Vanderhoff

Lessingia glandulifera    Valley lessingia,  Valley vinegar weed
native
Annual herb

ASTERACEAE

Lessingia glandulifera
2022 Steve Matson
Lessingia glandulifera
2022 Steve Matson
Lessingia glandulifera
2022 Steve Matson

Lessingia leptoclada    Sierra lessingia
native
Annual herb

ASTERACEAE

Lessingia leptoclada
2019 R.A. Chasey
Lessingia leptoclada
2021 Mike Russler
Lessingia leptoclada
2019 R.A. Chasey

Lessingia nemaclada    Slender stemmed lessingia,  Slenderstem lessingia,  Thread stem lessingia
native
Annual herb

ASTERACEAE

Lessingia nemaclada
2021 Mike Russler
Lessingia nemaclada
2021 Mike Russler
Lessingia nemaclada
2021 Mike Russler

Lewisia rediviva    Bitter root
native
Perennial herb

MONTIACEAE

Lewisia rediviva
2020 Matt Berger
Lewisia rediviva
2019 Matt Berger
Lewisia rediviva
2018 Mitchell Coleman

Limnanthes douglasii ssp. rosea    Rosy douglas' meadowfoam
native
Annual herb

LIMNANTHACEAE

Limnanthes douglasii ssp. rosea
2020 David popp
Limnanthes douglasii ssp. rosea
2020 Matt Berger
Limnanthes douglasii ssp. rosea
2021 Alaine Arslan

Limnanthes montana    Mountain meadowfoam
native
Annual herb

LIMNANTHACEAE

Limnanthes montana
2015 Mary Merriman
Limnanthes montana
2021 Mike Russler
Limnanthes montana
2021 Mike Russler

Linanthus bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Linanthus bicolor
2008 Steve Matson
Linanthus bicolor
2008 Steve Matson
Linanthus bicolor
2008 Steve Matson

Linanthus bolanderi    Bolander's linanthus
native
Annual herb

POLEMONIACEAE

Linanthus bolanderi
2019 David Greenberger
Linanthus bolanderi
2022 Dana York
Linanthus bolanderi
2019 David Greenberger

Linanthus ciliatus    Whiskerbrush
native
Annual herb

POLEMONIACEAE

Linanthus ciliatus
2020 Bob Sweatt
Linanthus ciliatus
2020 Bob Sweatt
Linanthus ciliatus
2018 Glenn Fine

Linanthus filipes    Thread linanthus
native
Annual herb

POLEMONIACEAE

Linanthus filipes
2020 Matt Berger
Linanthus filipes
2020 Matt Berger
Linanthus filipes
2020 Matt Berger

Linanthus pygmaeus    Pygmy linanthus
native
Annual herb

POLEMONIACEAE

Linanthus pygmaeus
2019 Steve Matson
Linanthus pygmaeus
2019 Steve Matson
Linanthus pygmaeus
2019 Steve Matson

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

SAXIFRAGACEAE

Lithophragma affine
2018 Steve Matson
Lithophragma affine
2018 Steve Matson
Lithophragma affine
2018 Steve Matson

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

POACEAE

Lolium multiflorum
2019 Ron Vanderhoff
Lolium multiflorum
2017 Gary McDonald
Lolium multiflorum
2021 Ron Vanderhoff

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 congdonii    Congdon's lomatium,  Mariposa desertparsley
rare native
Perennial herb

APIACEAE

Lomatium congdonii
2016 BOB CASE
Lomatium congdonii
2020 Matt Berger
Lomatium congdonii
2022 BOB CASE

Lomatium marginatum    Butte desertparsley,  Hartweg's lomatium,  Tall hog fennel
native
Perennial herb

APIACEAE

Lomatium marginatum
2022 R.A. Chasey
Lomatium marginatum
2023 R.A. Chasey
Lomatium marginatum
2022 Cynthia Powell

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

APIACEAE

Lomatium utriculatum
2006 Steve Matson
Lomatium utriculatum
2019 Eliezer Margolis
Lomatium utriculatum
2015 James Gonsman

Lonicera interrupta    Chaparral honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera interrupta
2018 David Greenberger
Lonicera interrupta
2019 Julie Kierstead Nelson
Lonicera interrupta
2009 BOB CASE

Lotus humistratus    hill lotus
native
Annual herb

FABACEAE

Lotus humistratus
2005 Steve Matson
Lotus humistratus
2005 Steve Matson
Lotus humistratus
2018 Steve Matson

Lotus purshianus var. purshianus    American bird's foot trefoil,  American trefoil,  Spanish lotus
native
Annual herb

FABACEAE

Lotus purshianus var. purshianus
2015 Steve Matson
Lotus purshianus var. purshianus
2015 Steve Matson
Lotus purshianus var. purshianus
2015 Steve Matson

Lotus wrangelianus    Wrangel lotus
native
Annual herb

FABACEAE

Lotus wrangelianus
2016 Steve Matson
Lotus wrangelianus
2016 Steve Matson
Lotus wrangelianus
2016 Steve Matson

Ludwigia peploides ssp. montevidensis    Floating primrose willow,  Floating water primrose
non-native
Perennial herb

ONAGRACEAE

Ludwigia peploides ssp. montevidensis
2021 Mike Russler
Ludwigia peploides ssp. montevidensis
2021 Mike Russler
Ludwigia peploides ssp. montevidensis
2021 Mike Russler

Lupinus benthamii    Bentham lupine,  Spider lupine
native
Annual herb

FABACEAE

Lupinus benthamii
2016 Steve Matson
Lupinus benthamii
2016 Steve Matson
Lupinus benthamii
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 microcarpus var. microcarpus    Chick lupine,  Valley lupine
native
Annual herb

FABACEAE

Lupinus microcarpus var. microcarpus
2006 Steve Matson
Lupinus microcarpus var. microcarpus
2006 Steve Matson
Lupinus microcarpus var. microcarpus
2006 Steve Matson

Lupinus pachylobus    Big pod lupine,  Fatpod lupine,  Mt. diablo lupine
native
Annual herb

FABACEAE

Lupinus pachylobus
2013 Jake Ruygt

Madia elegans ssp. densifolia    Common madia
native
Annual herb

ASTERACEAE

Madia elegans ssp. densifolia
2021 Jamie Spielmann
Madia elegans ssp. densifolia
2021 Mike Russler
Madia elegans ssp. densifolia
2020 Diane Etchison

Madia exigua    Little tarweed,  Meager tarweed,  Small tarweed
native
Annual herb

ASTERACEAE

Madia exigua
2023 Dianne Lake
Madia exigua
2023 Ron Vanderhoff
Madia exigua
2021 Helen Hancock

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

ASTERACEAE

Madia gracilis
2022 Mike Russler
Madia gracilis
2021 Amber Bedgood
Madia gracilis
2019 Ron Vanderhoff

Meconella californica    California fairypoppy,  California meconella
native
Annual herb

PAPAVERACEAE

Meconella californica
2021 Karen Swift
Meconella californica
2016 Bob Case
Meconella californica
2017 David Greenberger

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

FABACEAE

Medicago polymorpha
2019 Gary McDonald
Medicago polymorpha
2019 Gary McDonald
Medicago polymorpha
2019 Gary McDonald

Melica californica var. nevadensis    California melicgrass,  Few flowered california melic
native
Perennial grass

POACEAE

Melica californica var. nevadensis
2021 David popp
Melica californica var. nevadensis
2021 David popp
Melica californica var. nevadensis
2021 David popp

Melica torreyana    Torrey melic,  Torrey's melica,  Torrey's melicgrass
native
Perennial grass

POACEAE

Melica torreyana
2021 Toni Corelli
Melica torreyana
2019 John Rawlings
Melica torreyana
2017 MCOSD Restoration Crew

Melilotus indicus    Annual yellow sweetclover,  Sourclover
non-native
Annual herb

FABACEAE

Melilotus indicus
2019 Randy Huey
Melilotus indicus
2019 Randy Huey
Melilotus indicus
2017 Rosalie Benitez

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
2022 Donald Burk
Mentha spicata
2022 Donald Burk
Mentha spicata
2023 Ron Vanderhoff

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

ASTERACEAE

Micropus californicus var. californicus
2006 Steve Matson
Micropus californicus var. californicus
2021 Ron Vanderhoff
Micropus californicus var. californicus
2016 Steve Matson

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

ASTERACEAE

Microseris douglasii ssp. douglasii
2017 Steve Matson
Microseris douglasii ssp. douglasii
2017 Steve Matson
Microseris douglasii ssp. douglasii
2017 Steve Matson

Mimulus aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
2023 Bill Kress
Mimulus aurantiacus
2019 Stacie Wolny
Mimulus aurantiacus
2019 Gary McDonald

Mimulus congdonii    Congdon's monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus congdonii
2006 Steve Matson
Mimulus congdonii
2006 Steve Matson
Mimulus congdonii
2016 Steve Matson

Mimulus douglasii    Purple mouse ears
native
Annual herb

PHRYMACEAE

Mimulus douglasii
2023 Timothy Boomer
Mimulus douglasii
2023 Timothy Boomer
Mimulus douglasii
2023 Timothy Boomer

Mimulus floribundus    Many flowered monkeyflower
native
Annual herb

PHRYMACEAE

Mimulus floribundus
2021 Mike Russler
Mimulus floribundus
2019 Diane Etchison
Mimulus floribundus
2021 Mike Russler

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

PHRYMACEAE

Mimulus guttatus
2019 Stacie Wolny
Mimulus guttatus
2015 James Gonsman
Mimulus guttatus
2019 Stacie Wolny

Minuartia californica    California Sandwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia californica
2021 Steve Matson
Minuartia californica
2021 Steve Matson
Minuartia californica
2021 David popp

Minuartia douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia douglasii
2022 Steve Matson
Minuartia douglasii
2019 Stacie Wolny
Minuartia douglasii
2021 R.A. Chasey

Monardella villosa    Coyote mint
native
Perennial herb

LAMIACEAE

Monardella villosa
2020 Mary Sue Ittner
Monardella villosa
2019 Patrick Furtado
Monardella villosa
2019 Patricia Ashe

Monolopia sp.    Small Tree-Mallow


Nassella pulchra    Purple needle grass
native
Perennial grass

POACEAE

Nassella pulchra
2019 Michelle Karle
Nassella pulchra
2008 Zoya Akulova
Nassella pulchra
2019 Ron Vanderhoff

Navarretia intertexta ssp. intertexta    Interwoven navarretia,  Needleleaf navarretia
native
Annual herb

POLEMONIACEAE

Navarretia intertexta ssp. intertexta
2019 David Greenberger
Navarretia intertexta ssp. intertexta
2019 Bob Sweatt
Navarretia intertexta ssp. intertexta
2022 Bob Sweatt

Navarretia pubescens    Downy pincushionplant,  Purple navarretia
native
Annual herb

POLEMONIACEAE

Navarretia pubescens
2009 Bob Case
Navarretia pubescens
2019 David Greenberger
Navarretia pubescens
2022 Helen Hancock

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

Navarretia squarrosa
2019 Marisa Persaud
Navarretia squarrosa
2019 Patrick Furtado
Navarretia squarrosa
2022 Suzanne L. Weakley

Nemophila maculata    Five spot,  Fivespot
native
Annual herb

HYDROPHYLLACEAE

Nemophila maculata
2020 Matt Berger
Nemophila maculata
2021 Mike Russler
Nemophila maculata
2022 Mike Russler

Odontostomum hartwegii    Hartweg's doll's lily,  Hartweg's odontostomum,  Odontostomum
native
Perennial herb

TECOPHILAEACEAE

Odontostomum hartwegii
2020 Julie A. Kierstead
Odontostomum hartwegii
2022 Mike Russler
Odontostomum hartwegii
2022 John Game

Orobanche fasciculata    Clustered broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche fasciculata
2016 Jim Xerogeanes
Orobanche fasciculata
2016 Jim Xerogeanes
Orobanche fasciculata
2023 Mary Ann Machi

Panicum acuminatum    Western panicgrass,  Western panicum,  Western witch grass
native
Perennial grass

POACEAE

Panicum acuminatum
2017 David Greenberger
Panicum acuminatum
2020 Julie A. Kierstead
Panicum acuminatum
2021 R.A. Chasey

Panicum hillmanii    Hillman's panicgrass
non-native
Annual grass

POACEAE


Parvisedum pumilum    Sierra mock stonecrop
native
Annual herb

CRASSULACEAE

Parvisedum pumilum
2005 Steve Matson
Parvisedum pumilum
2021 R.A. Chasey
Parvisedum pumilum
2022 Steve Matson

Paspalum distichum    Knot grass,  Knotgrass
native
Perennial grass

POACEAE

Paspalum distichum
2011 Steve Matson
Paspalum distichum
2017 Ron Vanderhoff
Paspalum distichum
2017 Ron Vanderhoff

Pectocarya pusilla    Little gruvelia
native
Annual herb

BORAGINACEAE

Pectocarya pusilla
2022 Steve Matson
Pectocarya pusilla
2022 Steve Matson
Pectocarya pusilla
2022 Steve Matson

Pellaea mucronata    Bird's foot fern,  Birdfoot cliffbrake,  Birdfoot fern
native
Fern

PTERIDACEAE

Pellaea mucronata
2012 Ron Vanderhoff
Pellaea mucronata
2022 Helen Hancock
Pellaea mucronata
2023 Julia Markey

Pentagramma triangularis    Gold back fern,  Goldenback fern
native
Fern

PTERIDACEAE

Pentagramma triangularis
2021 Ron Vanderhoff
Pentagramma triangularis
2021 Mike Russler
Pentagramma triangularis
2024 Steve Conger

Petrorhagia prolifera    Childing pink,  Pink grass
non-native
Annual herb

CARYOPHYLLACEAE

Petrorhagia prolifera
2021 Larry Dizmang
Petrorhagia prolifera
2023 Mike Russler
Petrorhagia prolifera
2021 Larry Dizmang

Phacelia cicutaria    Caterpillar phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia cicutaria
2019 Ron Vanderhoff
Phacelia cicutaria
2016 Julie Watson
Phacelia cicutaria
2014 Diane Etchison

Phacelia imbricata    Imbricate phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia imbricata
2019 Steve Matson
Phacelia imbricata
2019 Steve Matson
Phacelia imbricata
2019 Steve Matson

Pinus sabiniana    Bull pine,  California foothill pine,  Gray pine
native
Tree

PINACEAE

Pinus sabiniana
2022 Cynthia Powell
Pinus sabiniana
2019 Cynthia Powell
Pinus sabiniana
2021 R.A. Chasey

Plagiobothrys tenellus    Pacific popcornflower,  Popcorn flower,  Slender popcorn flower
native
Annual herb

BORAGINACEAE

Plagiobothrys tenellus
2023 Larry Dizmang
Plagiobothrys tenellus
2023 Larry Dizmang
Plagiobothrys tenellus
2022 Mike Russler

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

PLANTAGINACEAE

Plantago erecta
2008 Steve Matson
Plantago erecta
2022 Steve Matson
Plantago erecta
2022 Steve Matson

Platystemon californicus    Cream cups,  Creamcups
native
Annual herb

PAPAVERACEAE

Platystemon californicus
2019 Diane Etchison
Platystemon californicus
2022 John L. Thompson
Platystemon californicus
2022 John L. Thompson

Plectritis ciliosa    Long spurred plectritis,  Longspur seablush
native
Annual herb

VALERIANACEAE

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

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

POACEAE

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

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

POACEAE

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

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

POACEAE

Poa secunda ssp. secunda
2018 Ron Vanderhoff
Poa secunda ssp. secunda
2018 Ron Vanderhoff
Poa secunda ssp. secunda
2018 Ron Vanderhoff

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

LAMIACEAE

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

Polygonum californicum    California knotweed
native
Annual herb

POLYGONACEAE

Polygonum californicum
2019 David Greenberger
Polygonum californicum
2022 BOB CASE
Polygonum californicum
2004 Steve Matson

Polygonum persicaria    Spotted ladysthumb
non-native
Annual herb

POLYGONACEAE

Polygonum persicaria
2020 R.A. Chasey
Polygonum persicaria
2021 joaquin hale
Polygonum persicaria
2021 joaquin hale

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

POACEAE

Polypogon monspeliensis
2008 Steve Matson
Polypogon monspeliensis
2014 Steve Matson
Polypogon monspeliensis
2008 Steve Matson

Potamogeton foliosus    Leafy pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton foliosus
2020 Ron Vanderhoff
Potamogeton foliosus
2020 Ron Vanderhoff
Potamogeton foliosus
2016 Robert L. Carr

Pseudobahia heermannii    Foothill sunburst,  Heermann's golden sunburst
native
Annual herb

ASTERACEAE

Pseudobahia heermannii
2019 Jacob Smith
Pseudobahia heermannii
2019 Jacob Smith
Pseudobahia heermannii
2019 Jacob Smith

Psilocarphus brevissimus var. brevissimus    Short woollyheads,  Woolly heads,  Woolly marbles
native
Annual herb

ASTERACEAE

Psilocarphus brevissimus var. brevissimus
2020 R.A. Chasey
Psilocarphus brevissimus var. brevissimus
2021 David popp
Psilocarphus brevissimus var. brevissimus
2020 Ron Vanderhoff

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

DENNSTAEDTIACEAE

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

Pterostegia drymarioides    Fairy mist,  Woodland threadstem
native
Annual herb

POLYGONACEAE

Pterostegia drymarioides
2016 Steve Matson
Pterostegia drymarioides
2016 Steve Matson
Pterostegia drymarioides
2005 Steve Matson

Quercus douglasii    Blue oak
native
Tree

FAGACEAE

Quercus douglasii
2023 Ryan O'Dell
Quercus douglasii
2018 Gary McDonald
Quercus douglasii
2020 Charles Russell

Quercus wislizeni var. wislizeni    Interior live oak
native
Tree, Shrub

FAGACEAE

Quercus wislizeni var. wislizeni
2018 Jay Chamberlain
Quercus wislizeni var. wislizeni
2019 Jay Chamberlain
Quercus wislizeni var. wislizeni
2020 Susan McDougall

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus californicus
2016 Steve Matson
Ranunculus californicus
2016 Steve Matson
Ranunculus californicus
2016 Steve Matson

Ranunculus occidentalis    Western buttercup
native
Perennial herb

RANUNCULACEAE

Ranunculus occidentalis
2020 Ron Vanderhoff
Ranunculus occidentalis
2008 Steve Matson
Ranunculus occidentalis
2022 Ron Vanderhoff

Rhamnus ilicifolia    Evergreen buckthorn,  Hollyleaf redberry
native
Shrub

RHAMNACEAE

Rhamnus ilicifolia
2016 Steve Matson
Rhamnus ilicifolia
2016 Steve Matson
Rhamnus ilicifolia
2006 Steve Matson

Rhamnus tomentella ssp. tomentella    Hoary coffeeberry
native
Shrub

RHAMNACEAE

Rhamnus tomentella ssp. tomentella
2020 R.A. Chasey
Rhamnus tomentella ssp. tomentella
2016 Ron Vanderhoff
Rhamnus tomentella ssp. tomentella
2023 Ron Vanderhoff

Ribes malvaceum    Chaparral currant
native
Shrub

GROSSULARIACEAE

Ribes malvaceum
2020 Bryant Baker
Ribes malvaceum
2020 Bryant Baker
Ribes malvaceum
2020 Bryant Baker

Rigiopappus leptocladus    Rigiopappus,  Wire weed,  Wireweed
native
Annual herb

ASTERACEAE

Rigiopappus leptocladus
2019 Ken Hickman
Rigiopappus leptocladus
2021 Steve Laymon
Rigiopappus leptocladus
2022 John Rawlings

Rubus armeniacus    Himalayan blackberry,  black berry,  Armenian blackberry
invasive non-native
Shrub

ROSACEAE

Rubus armeniacus
2014 James Gonsman
Rubus armeniacus
2020 Julie A. Kierstead
Rubus armeniacus
2018 Richard Spjut

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

POLYGONACEAE

Rumex conglomeratus
2020 Ron Vanderhoff
Rumex conglomeratus
2023 Ron Vanderhoff
Rumex conglomeratus
2023 Ron Vanderhoff

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

POLYGONACEAE

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

Rumex pulcher    Fiddle dock
non-native
Perennial herb

POLYGONACEAE

Rumex pulcher
2020 Ryan Carle
Rumex pulcher
2022 Chris McDonald
Rumex pulcher
2019 Saul Soto

Sagina apetala    Annual pearlwort,  Dwarf pearlwort,  Sticky pearlwort
non-native
Annual herb

CARYOPHYLLACEAE

Sagina apetala
2022 Donald Burk
Sagina apetala
2022 Donald Burk
Sagina apetala
2023 R.A. Chasey

Sagittaria latifolia    Broad leaf arrowhead,  Broadleaf arrowhead,  Wappato
native
Perennial herb (aquatic)

ALISMATACEAE

Sagittaria latifolia
2005 Louis-M. Landry
Sagittaria latifolia
2007 George W. Hartwell
Sagittaria latifolia
2005 Louis-M. Landry

Salix laevigata    Polished willow,  Red willow
native
Tree

SALICACEAE

Salix laevigata
2017 Steve Matson
Salix laevigata
2019 Barbara Brydolf
Salix laevigata
2022 Mark Gary

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

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

Salix melanopsis    Dusky willow
native
Tree, Shrub

SALICACEAE

Salix melanopsis
2014 Shawna Martinez
Salix melanopsis
2017 Susan Kotelnicki
Salix melanopsis
2021 Thomas Reyes

Sambucus mexicana    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

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

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

APIACEAE

Sanicula bipinnatifida
2019 Diane Etchison
Sanicula bipinnatifida
2018 Gary McDonald
Sanicula bipinnatifida
2021 Robin Carter

Sanicula tuberosa    Tuberous sanicle,  Turkey pea
native
Perennial herb

APIACEAE

Sanicula tuberosa
2023 R.A. Chasey
Sanicula tuberosa
2023 R.A. Chasey
Sanicula tuberosa
2023 R.A. Chasey

Saxifraga sp.    Small Tree-Mallow


Scirpus americanus    Chairmaker's bulrush
native
Perennial grasslike herb

CYPERACEAE

Scirpus americanus
2021 Ron Vanderhoff
Scirpus americanus
2016 Joan Hampton
Scirpus americanus
2020 Ron Vanderhoff

Scleranthus annuus ssp. annuus    German knotgrass,  Knawel,  Scleranthus
non-native
Annual herb

CARYOPHYLLACEAE

Scleranthus annuus ssp. annuus
2021 Steve Matson
Scleranthus annuus ssp. annuus
2021 Steve Matson
Scleranthus annuus ssp. annuus
2021 Steve Matson

Scribneria bolanderi    Scribner's grass,  Scribneria
native
Annual grass

POACEAE

Scribneria bolanderi
2022 John Rawlings
Scribneria bolanderi
2020 Ken Hickman
Scribneria bolanderi
2023 R.A. Chasey

Scrophularia californica    California bee plant,  California figwort
native
Perennial herb

SCROPHULARIACEAE

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

Selaginella hansenii    Hansen's spike moss,  Hansen's spikemoss
Selaginella hansenii
2021 Steve Matson
Selaginella hansenii
2020 Matt Berger
Selaginella hansenii
2021 Steve Matson

rare native
Perennial herb

ASTERACEAE

Senecio clevelandii var. heterophyllus
2012 Jean Pawek
Senecio clevelandii var. heterophyllus
2019 David Greenberger
Senecio clevelandii var. heterophyllus
2018 Paul Aigner

Senecio layneae    Layne's ragwort
rare native
Perennial herb

ASTERACEAE

Senecio layneae
2020 Matt Berger
Senecio layneae
2022 Charles Russell
Senecio layneae
2021 Debra Ayres

Sidalcea calycosa    Annual checkerbloom,  Checker mallow,  Pt. reyes sidalcea
native
Annual herb

MALVACEAE

Sidalcea calycosa
2016 Jim Bearden
Sidalcea calycosa
2019 David popp
Sidalcea calycosa
2019 David popp

Sidalcea hartwegii    Hartweg sidalcea,  Hartweg's checkerbloom,  Valley checkerbloom
native
Annual herb

MALVACEAE

Sidalcea hartwegii
2017 David Greenberger
Sidalcea hartwegii
2022 Mike Russler
Sidalcea hartwegii
2022 Mike Russler

Sidalcea malviflora ssp. asprella    Harsh checkerbloom, sierra foothills checkerbloom
native
Perennial herb

MALVACEAE

Sidalcea malviflora ssp. asprella
2019 Verna Jigour
Sidalcea malviflora ssp. asprella
2019 Verna Jigour
Sidalcea malviflora ssp. asprella
2007 Dr. Mark S. Brunell

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

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 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

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

ASTERACEAE

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

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

ASTERACEAE

Sonchus asper ssp. asper
2014 Gary McDonald
Sonchus asper ssp. asper
2022 Ron Vanderhoff
Sonchus asper ssp. asper
2014 Gary McDonald

Sorghum halepense    Johnsongrass
invasive non-native
Perennial grass

POACEAE

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

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

CARYOPHYLLACEAE

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

Stachys stricta    Sonoma hedge nettle,  Sonoma hedgenettle
native
Perennial herb

LAMIACEAE

Stachys stricta
2012 george jackson
Stachys stricta
2012 george jackson
Stachys stricta
2012 george jackson

Stellaria nitens    Shining chickweed,  Shiny chickweed,  Smooth chickweed
native
Annual herb

CARYOPHYLLACEAE

Stellaria nitens
2022 Catherine Chang
Stellaria nitens
2022 Catherine Chang
Stellaria nitens
2020 Ken Hickman

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

Streptanthus polygaloides    Milkwort jewelflower
native
Annual herb

BRASSICACEAE

Streptanthus polygaloides
2019 Belinda Lo
Streptanthus polygaloides
2023 Mike Russler
Streptanthus polygaloides
2019 Alison Sheehey

Thysanocarpus curvipes    Fringe pod,  Fringed pod,  Hairy lacepod
native
Annual herb

BRASSICACEAE

Thysanocarpus curvipes
2019 Steve Matson
Thysanocarpus curvipes
2014 Steve Matson
Thysanocarpus curvipes
2016 Steve Matson

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

Trichostema rubisepalum    Hernandez bluecurls
rare native
Annual herb

LAMIACEAE

Trichostema rubisepalum
2021 Mike Russler
Trichostema rubisepalum
2021 Mike Russler
Trichostema rubisepalum
2021 Mike Russler

Trifolium campestre    Field clover,  Low hop clover
non-native
Annual herb

FABACEAE

Trifolium campestre
2019 David Wolfson
Trifolium campestre
2021 R.A. Chasey
Trifolium campestre
2021 R.A. Chasey

Trifolium ciliolatum    Foothill clover,  Tree clover
native
Annual herb

FABACEAE

Trifolium ciliolatum
2020 Diane Etchison
Trifolium ciliolatum
2015 Diane Etchison
Trifolium ciliolatum
2019 Ron Vanderhoff

Trifolium depauperatum    Cowbag clover,  Dwarf sack clover,  Pale sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum
2021 Steve Matson
Trifolium depauperatum
2021 Steve Matson
Trifolium depauperatum
2022 Ken-ichi Ueda

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

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

Trifolium microcephalum    Hairy clover,  Small headed clover
native
Annual herb

FABACEAE

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

Trifolium microdon    Thimble clover,  Valparaiso clover
native
Annual herb

FABACEAE

Trifolium microdon
2022 Dee Shea Himes
Trifolium microdon
2022 Dee Shea Himes
Trifolium microdon
2023 R.A. Chasey

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

FABACEAE

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

Trifolium willdenovii    Tomcat clover
native
Annual herb

FABACEAE

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

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

OROBANCHACEAE

Triphysaria eriantha
2021 Steve Matson
Triphysaria eriantha
2021 Steve Matson
Triphysaria eriantha
2017 Dee Warenycia

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

OROBANCHACEAE

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

Triteleia bridgesii    Bridges' brodiaea
native
Perennial herb

THEMIDACEAE

Triteleia bridgesii
2016 Steve Matson
Triteleia bridgesii
2009 Bob Case
Triteleia bridgesii
2009 Bob Case

Triteleia hyacinthina    White brodiaea,  Wild hyacinth,  White Brodiaea, Fool's Onion
native
Perennial herb

THEMIDACEAE

Triteleia hyacinthina
2023 Suzanne L. Weakley
Triteleia hyacinthina
2008 Steve Matson
Triteleia hyacinthina
2020 Steve Conger

Triteleia laxa    Ithuriel's spear
native
Perennial herb

THEMIDACEAE

Triteleia laxa
2018 Gary McDonald
Triteleia laxa
2018 Tim Lewis
Triteleia laxa
2019 Matt Berger

Typha angustifolia    Nail rod,  Narrow leaf cattail,  Narrowleaf cattail
non-native
Perennial herb (aquatic)

TYPHACEAE

Typha angustifolia
2019 Ron Vanderhoff
Typha angustifolia
2019 Ron Vanderhoff
Typha angustifolia
2021 Ron Vanderhoff

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

Uropappus lindleyi    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

Uropappus lindleyi
2019 Zack Abbey
Uropappus lindleyi
2019 Ron Vanderhoff
Uropappus lindleyi
2016 Ron Vanderhoff

non-native
Annual herb

CARYOPHYLLACEAE

Velezia rigida
2020 Ken Hickman
Velezia rigida
2020 Ken Hickman
Velezia rigida
2020 Ken Hickman

Verbascum blattaria    Moth mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum blattaria
2023 Alaine Arslan
Verbascum blattaria
2019 Marisa Persaud
Verbascum blattaria
2019 Patrick Furtado

Verbena californica    California vervain,  Red hills vervain
rare native
Perennial herb

VERBENACEAE

Verbena californica
2019 David Greenberger
Verbena californica
2017 David Greenberger
Verbena californica
2019 David Greenberger

Verbena officinalis    Herb of the cross
non-native
Perennial herb

VERBENACEAE

Verbena officinalis
2013 Ron Vanderhoff
Verbena officinalis
2017 Ron Vanderhoff
Verbena officinalis
2017 Ron Vanderhoff

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

PLANTAGINACEAE

Veronica americana
2016 Steve Matson
Veronica americana
2016 Steve Matson
Veronica americana
2016 Steve Matson

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

Vicia sativa    Spring vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa
2022 David Wolfson
Vicia sativa
2019 Cynthia Powell
Vicia sativa
2023 Ron Vanderhoff

Vulpia bromoides    Brome fescue
non-native
Annual grass

POACEAE

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

native
Annual grass

POACEAE

Vulpia microstachys var. ciliata
2022 Aaron Sunshine
Vulpia microstachys var. ciliata
2011 Steve Matson
Vulpia microstachys var. ciliata
2011 Steve Matson

native
Annual grass

POACEAE

Vulpia microstachys var. confusa
2022 Aaron Sunshine
Vulpia microstachys var. confusa
2011 Steve Matson
Vulpia microstachys var. confusa
2011 Steve Matson

native
Annual grass

POACEAE

Vulpia microstachys var. microstachys
2022 Aaron Sunshine
Vulpia microstachys var. microstachys
2011 Steve Matson
Vulpia microstachys var. microstachys
2011 Steve Matson

native
Annual grass

POACEAE

Vulpia microstachys var. pauciflora
2022 Aaron Sunshine
Vulpia microstachys var. pauciflora
2011 Steve Matson
Vulpia microstachys var. pauciflora
2011 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 myuros var. hirsuta    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Vulpia myuros var. hirsuta
2021 Aaron Echols
Vulpia myuros var. hirsuta
2021 Ron Vanderhoff
Vulpia myuros var. hirsuta
2022 John Rawlings

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

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

Zannichellia palustris    Horned pondweed
native
Perennial herb

ZANNICHELLIACEAE

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

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