logo Calflora  Illustrated Plant List 
Jasper Ridge Biological Preserve JRPB/JROH
Jasper Ridge Biological Preserve
San Mateo County

San Mateo County

Toni Corelli  / Botanist/Jasper Ridge Biological Preserve Docent  (2008-01-01)

Record Detail Nearby Surveys What Grows Here?
766 PLANTS
Abutilon theophrasti    Velvet leaf,  Velvetleaf
non-native
Annual herb

MALVACEAE

Abutilon theophrasti
2022 Morgan Stickrod
Abutilon theophrasti
2023 Donald Burk
Abutilon theophrasti
2023 Donald Burk

Acacia dealbata    Silver wattle
invasive non-native
Tree, Shrub

FABACEAE

Acacia dealbata
2019 Gary McDonald
Acacia dealbata
2023 Ron Vanderhoff
Acacia dealbata
2019 Gary McDonald

Acacia melanoxylon    Blackwood acacia
invasive non-native
Tree

FABACEAE

Acacia melanoxylon
2022 Julian Geoghegan
Acacia melanoxylon
2019 Julian Geoghegan
Acacia melanoxylon
2019 Devon Jackson

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
2016 Steve Matson
Acer macrophyllum
2018 Steve Matson
Acer macrophyllum
2018 Steve Matson

Acer negundo    Boxelder
native
Tree

SAPINDACEAE

Acer negundo
2019 Robert Sweet
Acer negundo
2016 John H Malpas
Acer negundo
2019 Ron Vanderhoff

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2022 Andy Ford
Achillea millefolium
2020 Bob Sweatt
Achillea millefolium
2018 Gary McDonald

Achyrachaena mollis    Blow-Wives
native
Annual herb

ASTERACEAE

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

Acmispon americanus var. americanus    American bird's foot trefoil,  American trefoil,  Spanish lotus
native
Annual herb

FABACEAE

Acmispon americanus var. americanus
2015 Steve Matson
Acmispon americanus var. americanus
2015 Steve Matson
Acmispon americanus var. americanus
2015 Steve Matson

Acmispon brachycarpus    hill lotus
native
Annual herb

FABACEAE

Acmispon brachycarpus
2005 Steve Matson
Acmispon brachycarpus
2005 Steve Matson
Acmispon brachycarpus
2018 Steve Matson

native
Perennial herb

FABACEAE

Acmispon glaber var. glaber
2020 Ron Vanderhoff
Acmispon glaber var. glaber
2020 Ron Vanderhoff
Acmispon glaber var. glaber
2020 Ron Vanderhoff

Acmispon parviflorus    Hill lotus
native
Annual herb

FABACEAE

Acmispon parviflorus
2008 Steve Matson
Acmispon parviflorus
2005 Steve Matson
Acmispon parviflorus
2008 Steve Matson

Acmispon strigosus    Strigose lotus
native
Annual herb

FABACEAE

Acmispon strigosus
2016 Steve Matson
Acmispon strigosus
2009 Steve Matson
Acmispon strigosus
2016 Steve Matson

Acmispon wrangelianus    Wrangel lotus
native
Annual herb

FABACEAE

Acmispon wrangelianus
2016 Steve Matson
Acmispon wrangelianus
2016 Steve Matson
Acmispon wrangelianus
2016 Steve Matson

Actaea rubra    baneberry,  Western baneberry
native
Perennial herb

RANUNCULACEAE

Actaea rubra
2014 Steve Matson
Actaea rubra
2014 Steve Matson
Actaea rubra
2002 Gerald Carr

Adenocaulon bicolor    American trailplant,  Trail plant
native
Perennial herb

ASTERACEAE

Adenocaulon bicolor
2018 MCOSD EDRR
Adenocaulon bicolor
2020 Cynthia Powell
Adenocaulon bicolor
2020 Bob Sweatt

native
Tree, Shrub

ROSACEAE

Adenostoma fasciculatum var. fasciculatum
2019 Steve Matson
Adenostoma fasciculatum var. fasciculatum
2019 Steve Matson
Adenostoma fasciculatum var. fasciculatum
2019 Steve Matson

Adiantum aleuticum    Five finger fern
native
Fern

PTERIDACEAE

Adiantum aleuticum
2013 BOB CASE
Adiantum aleuticum
2018 Neal Kramer
Adiantum aleuticum
2021 R.A. Chasey

Adiantum jordanii    Adiantum,  maiden hair fern
native
Fern

PTERIDACEAE

Adiantum jordanii
2022 BOB CASE
Adiantum jordanii
2019 Ron Vanderhoff
Adiantum jordanii
2023 Mike Russler

Aesculus californica    Buckeye,  California buckeye,  California horse chestnut
native
Tree

SAPINDACEAE

Aesculus californica
2011 Steve Matson
Aesculus californica
2011 Steve Matson
Aesculus californica
2019 Verna Jigour

Agapanthus praecox    African lily
non-native
Perennial herb

LILIACEAE

Agapanthus praecox
2015 Juan de Dios Villarino
Agapanthus praecox
2019 Patrick Furtado
Agapanthus praecox
2017 MCOSD EDRR

Agoseris grandiflora var. grandiflora    Giant mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris grandiflora var. grandiflora
2007 Gerald Carr
Agoseris grandiflora var. grandiflora
2007 Gerald Carr
Agoseris grandiflora var. grandiflora
2021 Emily Sluiman

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 avenacea    Pacific bentgrass
invasive non-native
Perennial grass

POACEAE

Agrostis avenacea
2021 John Rawlings
Agrostis avenacea
2016 Andrew Longman
Agrostis avenacea
2022 Donald Burk

Agrostis capillaris    Colonial bentgrass
non-native
Perennial grass

POACEAE

Agrostis capillaris
2005 Steve Matson
Agrostis capillaris
2005 Steve Matson
Agrostis capillaris
2005 Steve Matson

Agrostis exarata    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

Agrostis exarata
2022 Teal Derrer
Agrostis exarata
2021 David popp
Agrostis exarata
2022 John Rawlings

Agrostis hallii    Hall redtop,  Hall's bent grass,  Hall's bentgrass
native
Perennial grass

POACEAE

Agrostis hallii
2005 Steve Matson
Agrostis hallii
2005 Steve Matson

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 pallens    Leafy bent grass,  Seashore bentgrass,  Thingrass
native
Perennial grass

POACEAE

Agrostis pallens
2021 John Rawlings
Agrostis pallens
2020 Susan McDougall
Agrostis pallens
2021 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 triviale    Northern water plantain
native
Perennial herb (aquatic)

ALISMATACEAE

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

Allium amplectens    Narrow leaved onion,  Narrowleaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium amplectens
2016 Steve Matson
Allium amplectens
2016 Steve Matson
Allium amplectens
2016 Steve Matson

Allium falcifolium    Scytheleaf onion,  Sickle leaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium falcifolium
2011 Steve Matson
Allium falcifolium
2022 Steve Matson
Allium falcifolium
2011 Steve Matson

native
Perennial herb (bulb)

ALLIACEAE

Allium lacunosum var. lacunosum
2016 Steve Matson
Allium lacunosum var. lacunosum
2016 Steve Matson
Allium lacunosum var. lacunosum
2016 Steve Matson

Allium peninsulare var. franciscanum    San francisco bay onion,  San francisco onion
rare native
Perennial herb (bulb)

ALLIACEAE

Allium peninsulare var. franciscanum
2023 Alice Cummings
Allium peninsulare var. franciscanum
2021 Dee Shea Himes
Allium peninsulare var. franciscanum
2017 Michelle Bosch

Allium triquetrum    Three cornered leek,  Threecorner leek,  White flowered onion
invasive non-native
Perennial herb (bulb)

ALLIACEAE

Allium triquetrum
2017 Steve Matson
Allium triquetrum
2017 Steve Matson
Allium triquetrum
2017 Steve Matson

Allium unifolium    One leaf onion,  Oneleaf onion
native
Perennial herb (bulb)

ALLIACEAE

Allium unifolium
2021 Doug Allshouse
Allium unifolium
2020 stephen rosenthal
Allium unifolium
2023 Mary Ann Machi

Alnus rhombifolia    White alder
native
Tree

BETULACEAE

Alnus rhombifolia
2005 BOB CASE
Alnus rhombifolia
2014 Garth Wadsworth
Alnus rhombifolia
2023 Ron Vanderhoff

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 retroflexus    Green amaranth,  Red root pigweed,  Red rooted amaranth
non-native
Annual herb

AMARANTHACEAE

Amaranthus retroflexus
2017 Ingrid Cabada
Amaranthus retroflexus
2022 Jennifer Mo
Amaranthus retroflexus
2021 Ron Vanderhoff

Amaryllis belladonna    Belladonna lily
non-native
Perennial herb

AMARYLLIDACEAE

Amaryllis belladonna
2016 Camille Nowell
Amaryllis belladonna
2023 Ron Vanderhoff
Amaryllis belladonna
2022 Ron Vanderhoff

Amelanchier utahensis    Pale leaved serviceberry,  Service berry,  Utah service berry
native
Shrub

ROSACEAE

Amelanchier utahensis
2022 R.A. Chasey
Amelanchier utahensis
2021 Robert Steers
Amelanchier utahensis
2022 R.A. Chasey

Ammannia robusta    Grand ammania,  Grand redstem
native
Annual herb

LYTHRACEAE

Ammannia robusta
2012 Ron Vanderhoff
Ammannia robusta
2022 Donald Burk
Ammannia robusta
2018 Ron Vanderhoff

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia intermedia
2020 Matt Berger
Amsinckia intermedia
2019 Ron Vanderhoff
Amsinckia intermedia
2021 David popp

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

BORAGINACEAE

Amsinckia menziesii
2020 Ron Vanderhoff
Amsinckia menziesii
2018 Gary McDonald
Amsinckia menziesii
2018 Gary McDonald

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

Anagallis minima    Chaffweed
native
Annual herb

MYRSINACEAE

Anagallis minima
2020 Ron Vanderhoff
Anagallis minima
2018 Hayley Ross
Anagallis minima
2020 Ron Vanderhoff

Angelica tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

Angelica tomentosa
2022 Donald Burk
Angelica tomentosa
2022 Donald Burk
Angelica tomentosa
2017 MCOSD EDRR

Anisocarpus madioides    Woodland madia
native
Perennial herb

ASTERACEAE

Anisocarpus madioides
2023 Suzanne L. Weakley
Anisocarpus madioides
2023 R.A. Chasey
Anisocarpus madioides
2016 Cynthia Powell

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

Anthoxanthum occidentale    Califonria sweet grass,  Vanilla grass
native
Perennial grass

POACEAE

Anthoxanthum occidentale
2022 John Rawlings
Anthoxanthum occidentale
2022 R.A. Chasey
Anthoxanthum occidentale
2022 John Rawlings

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

Antirrhinum kelloggii    Climbing snapdragon,  Kellogg's snapdragon,  Lax snapdragon
native
Annual herb

PLANTAGINACEAE

Antirrhinum kelloggii
2020 Ron Vanderhoff
Antirrhinum kelloggii
2019 David Greenberger
Antirrhinum kelloggii
2019 Ron Vanderhoff

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

Aquilegia formosa    Crimson columbine,  Sitka columbine,  Western columbine
native
Perennial herb

RANUNCULACEAE

Aquilegia formosa
2022 Charles Russell
Aquilegia formosa
2019 Diane Etchison
Aquilegia formosa
2022 David Strauch

Arabis blepharophylla    Coast rock cress
rare native
Perennial herb

BRASSICACEAE

Arabis blepharophylla
2017 Steve Matson
Arabis blepharophylla
2017 Steve Matson
Arabis blepharophylla
2017 Steve Matson

Aralia californica    California spikenard,  Elk's clover,  Elkclover
native
Perennial herb

ARALIACEAE

Aralia californica
2022 Julie A. Kierstead
Aralia californica
2020 Tri Do
Aralia californica
2014 James Gonsman

Arbutus menziesii    Madrono,  Pacific madrone
native
Tree

ERICACEAE

Arbutus menziesii
2021 Cynthia Powell
Arbutus menziesii
2021 R.A. Chasey
Arbutus menziesii
2021 Hunter Breck

Arctostaphylos crustacea ssp. crustacea    Brittle leaf manzanita
native
Shrub

ERICACEAE

Arctostaphylos crustacea ssp. crustacea
2017 Steve Matson
Arctostaphylos crustacea ssp. crustacea
2017 Steve Matson
Arctostaphylos crustacea ssp. crustacea
2017 Steve Matson

Arnica discoidea    Rayless arnica
native
Perennial herb

ASTERACEAE

Arnica discoidea
2020 Ken Hickman
Arnica discoidea
2019 David Magney
Arnica discoidea
2020 Eliezer Margolis

Arrhenatherum elatius    Tall oatgrass
non-native
Perennial grass

POACEAE

Arrhenatherum elatius
2020 Doug Allshouse
Arrhenatherum elatius
2021 John Rawlings
Arrhenatherum elatius
2019 Julian Geoghegan

Artemisia biennis    Biennial sagewort
non-native
Annual, Perennial herb

ASTERACEAE

Artemisia biennis
2017 Adonis Tate
Artemisia biennis
2017 Ron Vanderhoff
Artemisia biennis
2023 R.A. Chasey

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

Asclepias fascicularis    Narrow leaf milkweed
native
Perennial herb

APOCYNACEAE

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

non-native
Perennial herb

ASPARAGACEAE

Asparagus officinalis ssp. officinalis
2021 Robin Carter
Asparagus officinalis ssp. officinalis
1995 Saint Mary's College of California
Asparagus officinalis ssp. officinalis
2020 MCOSD EDRR

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

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

BRASSICACEAE

Athysanus pusillus
2008 Steve Matson
Athysanus pusillus
2008 Steve Matson
Athysanus pusillus
2008 Steve Matson

Atriplex prostrata    Fat-hen
non-native
Annual herb

CHENOPODIACEAE

Atriplex prostrata
2015 Alice Cummings
Atriplex prostrata
2023 Ron Vanderhoff
Atriplex prostrata
2018 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

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

AZOLLACEAE

Azolla filiculoides
2020 Ron Vanderhoff
Azolla filiculoides
2023 R.A. Chasey
Azolla filiculoides
2021 Zoya Akulova-Barlow

Baccharis glutinosa    Douglas' baccharis,  Salt marsh baccharis
native
Perennial herb

ASTERACEAE

Baccharis glutinosa
2020 Patrick Furtado
Baccharis glutinosa
2019 Julian Geoghegan
Baccharis glutinosa
2020 Rebecca Schoenenberger

native
Shrub

ASTERACEAE

Baccharis pilularis ssp. consanguinea
2009 Toni Corelli
Baccharis pilularis ssp. consanguinea
2022 John Doyen
Baccharis pilularis ssp. consanguinea
2018 Ron Vanderhoff

Barbarea orthoceras    American rocket,  American wintercress,  Erectpod wintercress
native
Perennial herb

BRASSICACEAE

Barbarea orthoceras
2015 James Gonsman
Barbarea orthoceras
2019 Diane Etchison
Barbarea orthoceras
2020 Diane Etchison

Bellardia trixago    Mediterranean lineseed
invasive non-native
Annual herb

OROBANCHACEAE

Bellardia trixago
2016 Michael Mitchell
Bellardia trixago
2016 Michael Mitchell
Bellardia trixago
2015 jamie smith

Berberis pinnata ssp. pinnata    California barberry,  Coast barberry,  Shiny leaf barberry
native
Shrub

BERBERIDACEAE

Berberis pinnata ssp. pinnata
2022 Alice Cummings
Berberis pinnata ssp. pinnata
2021 Ron Vanderhoff
Berberis pinnata ssp. pinnata
2021 R.A. Chasey

native
Perennial grasslike herb

CYPERACEAE

Bolboschoenus maritimus ssp. paludosus
2022 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
2020 R.A. Chasey
Bolboschoenus maritimus ssp. paludosus
2020 Alice Cummings

Borago officinalis    Borage,  Common borage
non-native
Annual herb

BORAGINACEAE

Borago officinalis
2020 Jesse Potter
Borago officinalis
2020 Jesse Potter
Borago officinalis
2020 Jesse Potter

Bowlesia incana    Hoary bowlesia
native
Annual herb

APIACEAE

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

Boykinia occidentalis    Brook foam,  Coastal brookfoam,  Western boykinia
native
Perennial herb

SAXIFRAGACEAE

Boykinia occidentalis
2014 James Gonsman
Boykinia occidentalis
2017 Hunter Breck
Boykinia occidentalis
2021 Bryant Baker

Brachypodium distachyon    False brome,  Purple false brome
invasive non-native
Annual, Perennial grass

POACEAE

Brachypodium distachyon
2019 Ron Vanderhoff
Brachypodium distachyon
2021 John Rawlings
Brachypodium distachyon
2019 Ron Vanderhoff

Brachypodium sylvaticum    Slender false brome
invasive non-native
Perennial grass

POACEAE

Brachypodium sylvaticum
2018 Ecological Concerns Inc
Brachypodium sylvaticum
2021 SMCP NRM Intern
Brachypodium sylvaticum
2020 John Rawlings

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

Briza maxima    Big quaking grass,  Big quakinggrass,  Rattlesnake grass
invasive non-native
Annual grass

POACEAE

Briza maxima
2017 Gary McDonald
Briza maxima
2018 Bill Schmidt
Briza maxima
2017 Gary McDonald

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 ssp. elegans    Harvest brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea elegans ssp. elegans
2016 Steve Matson
Brodiaea elegans ssp. elegans
2016 Steve Matson
Brodiaea elegans ssp. elegans
2015 Julie A. Kierstead

native
Perennial herb

THEMIDACEAE

Brodiaea terrestris ssp. terrestris
2017 James Gonsman
Brodiaea terrestris ssp. terrestris
2022 Cynthia Powell
Brodiaea terrestris ssp. terrestris
2022 Cynthia Powell

Bromus berteroanus    Chilean chess
non-native
Annual grass

POACEAE

Bromus berteroanus
2023 John Rawlings
Bromus berteroanus
2006 Steve Matson
Bromus berteroanus
2006 Steve Matson

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

POACEAE

Bromus carinatus var. carinatus
2016 Richard Chasey
Bromus carinatus var. carinatus
2013 Jean Pawek
Bromus carinatus var. carinatus
2021 Amelia Ryan

Bromus catharticus    Rescue grass,  Rescuegrass
non-native
Annual, Perennial grass

POACEAE

Bromus catharticus
2019 John Rawlings
Bromus catharticus
2016 Andrew Longman
Bromus catharticus
2020 Ramona Robison

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

Bromus laevipes    Chinook brome,  Narrow flowered brome,  Woodland brome
native
Perennial grass

POACEAE

Bromus laevipes
2020 Alice Cummings
Bromus laevipes
2019 Kimberly Moses
Bromus laevipes
2018 Ken Hickman

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

Bromus tectorum    Cheatgrass, downy brome,  Downy brome grass,  Downy chess
invasive non-native
Annual grass

POACEAE

Bromus tectorum
2022 Ron Vanderhoff
Bromus tectorum
2022 Ron Vanderhoff
Bromus tectorum
2022 Ron Vanderhoff

Bromus vulgaris    Columbia brome,  Common brome
native
Annual grass

POACEAE

Bromus vulgaris
2023 David popp
Bromus vulgaris
2023 Robert Steers
Bromus vulgaris
2023 Robert Steers

Calamagrostis koelerioides    Fire reedgrass
native
Perennial grass

POACEAE

Calamagrostis koelerioides
2022 Dana York
Calamagrostis koelerioides
2022 Dana York
Calamagrostis koelerioides
2006 Steve Matson

Calamagrostis rubescens    Pine grass,  Pinegrass
native
Perennial grass

POACEAE

Calamagrostis rubescens
2018 Ken Hickman
Calamagrostis rubescens
2009 Zoya Akulova
Calamagrostis rubescens
2009 Zoya Akulova

Calandrinia menziesii    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia menziesii
2021 Mary Ann Machi
Calandrinia menziesii
2019 Ron Vanderhoff
Calandrinia menziesii
2019 Ron Vanderhoff

Callitriche marginata    California water starwort,  Winged water starwort
native
Annual herb (aquatic)

PLANTAGINACEAE

Callitriche marginata
2019 Ron Vanderhoff
Callitriche marginata
2019 Ron Vanderhoff
Callitriche marginata
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 argillosus    Clay mariposa lily
native
Perennial herb (bulb)

LILIACEAE

Calochortus argillosus
2016 Daniel Neal
Calochortus argillosus
2022 Suzanne L. Weakley
Calochortus argillosus
2022 Suzanne L. Weakley

Calochortus luteus    Yellow mariposa lily
native
Perennial herb

LILIACEAE

Calochortus luteus
2014 Steve Matson
Calochortus luteus
2016 Melissa Mooney
Calochortus luteus
2023 Ryan O'Dell

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

Calystegia purpurata ssp. purpurata    Pacific false bindweed,  Purple western morning glory,  Smooth western morning glory
native
Perennial herb

CONVOLVULACEAE

Calystegia purpurata ssp. purpurata
2021 Cara Wilcox
Calystegia purpurata ssp. purpurata
2014 James Gonsman
Calystegia purpurata ssp. purpurata
2020 Robert Steers

Calystegia subacaulis ssp. subacaulis    Cambria morning glory,  Hill morning glory,  Hillside false bindweed
native
Perennial herb

CONVOLVULACEAE

Calystegia subacaulis ssp. subacaulis
2020 Ken Hickman
Calystegia subacaulis ssp. subacaulis
2021 R.A. Chasey
Calystegia subacaulis ssp. subacaulis
2022 R.A. Chasey

Camissoniopsis micrantha    Spencer primrose
native
Annual herb

ONAGRACEAE

Camissoniopsis micrantha
2021 Ken-ichi Ueda
Camissoniopsis micrantha
2021 Ken-ichi Ueda
Camissoniopsis micrantha
2023 Julia Markey

Campanula griffinii    Griffin's bellflower,  Griffin's harebell
native
Annual herb

CAMPANULACEAE

Campanula griffinii
2022 Robert Steers
Campanula griffinii
2022 Robert Steers
Campanula griffinii
2022 Robert Steers

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 californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

Cardamine californica
2020 Barbara Peck
Cardamine californica
2019 Ron Vanderhoff
Cardamine californica
2019 Ron Vanderhoff

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

non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus ssp. pycnocephalus
2020 Ron Vanderhoff
Carduus pycnocephalus ssp. pycnocephalus
2019 Gary McDonald
Carduus pycnocephalus ssp. pycnocephalus
2021 Ron Vanderhoff

Carduus tenuiflorus    Italian thistle,  Slender flowered thistle,  Winged plumeless thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus tenuiflorus
2018 Gary McDonald
Carduus tenuiflorus
2018 Gary McDonald
Carduus tenuiflorus
2018 Gary McDonald

Carex amplifolia    Ample leaved sedge,  Big leaf sedge
native
Perennial grasslike herb

CYPERACEAE

Carex amplifolia
2002 Steve Matson
Carex amplifolia
2002 Steve Matson
Carex amplifolia
2019 Matt Berger

Carex barbarae    Santa barbara sedge,  Valley sedge
native
Perennial grasslike herb

CYPERACEAE

Carex barbarae
2017 Eric Wrubel, NPS
Carex barbarae
2023 Ron Vanderhoff
Carex barbarae
2023 Ron Vanderhoff

Carex bolanderi    Bolander's sedge
native
Perennial grasslike herb

CYPERACEAE

Carex bolanderi
2018 Steve Matson
Carex bolanderi
2018 Steve Matson
Carex bolanderi
2018 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 divulsa ssp. divulsa    Gray sedge
non-native
Perennial grasslike herb

CYPERACEAE

Carex divulsa ssp. divulsa
2020 Peter Warner
Carex divulsa ssp. divulsa
2020 Peter Warner
Carex divulsa ssp. divulsa
2017 Eric Wrubel

Carex globosa    Round fruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex globosa
2014 Steve Matson
Carex globosa
2014 Steve Matson
Carex globosa
2014 Steve Matson

Carex gracilior    Slender sedge
native
Perennial grasslike herb

CYPERACEAE

Carex gracilior
2010 Toni Corelli
Carex gracilior
2003 Steve Matson
Carex gracilior
2003 Steve Matson

Carex harfordii    Harford's sedge,  Monterey sedge
native
Perennial grasslike herb

CYPERACEAE

Carex harfordii
2019 Ken Hickman
Carex harfordii
2023 Ellen Uhler
Carex harfordii
2023 Ellen Uhler

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 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 subbracteata    Small bract sedge
native
Perennial grasslike herb

CYPERACEAE

Carex subbracteata
2023 Dana York
Carex subbracteata
2021 John Rawlings
Carex subbracteata
2023 Ellen Uhler

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 ssp. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja affinis ssp. affinis
2006 Steve Matson
Castilleja affinis ssp. affinis
2006 Steve Matson
Castilleja affinis ssp. affinis
2019 Ron Vanderhoff

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 densiflora ssp. densiflora    Dense flower owl's clover,  Denseflower indian paintbrush
native
Annual herb

OROBANCHACEAE

Castilleja densiflora ssp. densiflora
2018 Hayley Ross
Castilleja densiflora ssp. densiflora
2019 Verna Jigour
Castilleja densiflora ssp. densiflora
2022 Alice Cummings

native
Annual herb

OROBANCHACEAE

Castilleja rubicundula ssp. lithospermoides
2016 Steve Matson
Castilleja rubicundula ssp. lithospermoides
2016 Steve Matson
Castilleja rubicundula ssp. lithospermoides
2021 R.A. Chasey

Castilleja wightii    Wight's indian paint brush,  Wight's paintbrush
native
Perennial herb

OROBANCHACEAE

Castilleja wightii
2022 Suzanne L. Weakley
Castilleja wightii
2023 Beth Reuter
Castilleja wightii
2022 R.A. Chasey

Caulanthus lasiophyllus    California mustard
native
Annual herb

BRASSICACEAE

Caulanthus lasiophyllus
2022 Steve Matson
Caulanthus lasiophyllus
2023 Steve Matson
Caulanthus lasiophyllus
2010 Steve Matson

Ceanothus cuneatus var. cuneatus    Buck brush,  Buckbrush
native
Shrub

RHAMNACEAE

Ceanothus cuneatus var. cuneatus
2022 Ryan O'Dell
Ceanothus cuneatus var. cuneatus
2021 Steve Matson
Ceanothus cuneatus var. cuneatus
2019 Cara Wilcox

native
Shrub

RHAMNACEAE

Ceanothus oliganthus var. sorediatus
2022 R.A. Chasey
Ceanothus oliganthus var. sorediatus
2017 Steve Matson
Ceanothus oliganthus var. sorediatus
2019 Susan McDougall

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

ASTERACEAE

Centaurea calcitrapa
2021 R.A. Chasey
Centaurea calcitrapa
2019 MCOSD EDRR
Centaurea calcitrapa
2022 R.A. Chasey

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

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

ASTERACEAE

Centaurea solstitialis
2022 Cynthia Powell
Centaurea solstitialis
2019 Arlee Montalvo
Centaurea solstitialis
2022 Mary Herr

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

Cercocarpus betuloides var. betuloides    Birch leaf mountain mahogany
native
Tree, Shrub

ROSACEAE

Cercocarpus betuloides var. betuloides
2019 Ron Vanderhoff
Cercocarpus betuloides var. betuloides
2019 Ron Vanderhoff
Cercocarpus betuloides var. betuloides
2016 Ron Vanderhoff

Chamaesyce maculata    Spotted spurge
non-native
Annual herb

EUPHORBIACEAE

Chamaesyce maculata
2019 B.J. Dion
Chamaesyce maculata
2019 B.J. Dion
Chamaesyce maculata
2022 Ron Vanderhoff

native
Annual, Perennial herb

EUPHORBIACEAE

Chamaesyce serpyllifolia ssp. serpyllifolia
2005 Steve Matson
Chamaesyce serpyllifolia ssp. serpyllifolia
2005 Steve Matson
Chamaesyce serpyllifolia ssp. serpyllifolia
2022 Steve Matson

Chenopodium berlandieri var. sinuatum    Pitseed goosefoot
native
Annual herb

CHENOPODIACEAE

Chenopodium berlandieri var. sinuatum
2014 Ron Vanderhoff
Chenopodium berlandieri var. sinuatum
2023 Dianne Lake
Chenopodium berlandieri var. sinuatum
2018 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

Chenopodium rubrum var. humile    Red goosefoot
non-native
Annual herb

CHENOPODIACEAE

Chenopodium rubrum var. humile
2018 Gerald Carr
Chenopodium rubrum var. humile
2018 Gerald Carr
Chenopodium rubrum var. humile
2018 Gerald Carr

Chenopodium vulvaria    Stinking goosefoot
non-native
Annual herb

CHENOPODIACEAE

Chenopodium vulvaria
2022 Donald Burk
Chenopodium vulvaria
2022 Donald Burk
Chenopodium vulvaria
2015 Zoya Akulova

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

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum
2021 Sue Graue
Chlorogalum pomeridianum var. pomeridianum
2015 Sharon King & Randy Aeschliman
Chlorogalum pomeridianum var. pomeridianum
2018 Karen Scheuermann

Chorizanthe diffusa    Diffuse spineflower
native
Annual herb

POLYGONACEAE

Chorizanthe diffusa
2022 Irene Rosen
Chorizanthe diffusa
2020 David Greenberger
Chorizanthe diffusa
2022 Irene Rosen

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

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

Cichorium intybus
2020 Bob Sweatt
Cichorium intybus
2022 David Strauch
Cichorium intybus
2019 Diane Etchison

Cirsium brevistylum    Clustered thistle,  Indian thistle
native
Perennial herb

ASTERACEAE

Cirsium brevistylum
2019 Steve Davison
Cirsium brevistylum
2018 Brian Charles
Cirsium brevistylum
2019 Aleksandra Evert

Cirsium occidentale var. occidentale    Cobweb thistle,  Cobwebby thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. occidentale
2022 Suzanne L. Weakley
Cirsium occidentale var. occidentale
2020 Coty Sifuentes-Winter
Cirsium occidentale var. occidentale
2019 Randy Huey

Cirsium occidentale var. venustum    Cobwebby thistle,  Red thistle,  Venus thistle
native
Perennial herb

ASTERACEAE

Cirsium occidentale var. venustum
2011 Steve Matson
Cirsium occidentale var. venustum
2011 Steve Matson
Cirsium occidentale var. venustum
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

Cistus incanus    Hairy rockrose
non-native
Shrub

CISTACEAE

Cistus incanus
2020 Karen Swift
Cistus incanus
2023 Ron Vanderhoff
Cistus incanus
2018 Julian Geoghegan

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

Clarkia purpurea ssp. viminea    Large godetia,  Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea ssp. viminea
2020 Steve Laymon
Clarkia purpurea ssp. viminea
2020 Steve Laymon
Clarkia purpurea ssp. viminea
2020 Steve Laymon

Clarkia rubicunda    Farewell to spring,  Reddened clarkia,  Ruby chalice clarkia
native
Annual herb

ONAGRACEAE

Clarkia rubicunda
2019 Stacie Wolny
Clarkia rubicunda
2021 John Game
Clarkia rubicunda
2019 Stacie Wolny

Clarkia unguiculata    Elegant clarkia,  Mountain garland,  Woodland clarkia
native
Annual herb

ONAGRACEAE

Clarkia unguiculata
2019 David Greenberger
Clarkia unguiculata
2021 Mike Russler
Clarkia unguiculata
2022 Suzanne L. Weakley

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 parviflora ssp. parviflora    Narrow leaved miner's lettuce,  Streambank springbeauty,  Utah miner s lettuce
native
Annual herb

MONTIACEAE

Claytonia parviflora ssp. parviflora
2022 Ron Vanderhoff
Claytonia parviflora ssp. parviflora
2017 Gary McDonald
Claytonia parviflora ssp. parviflora
2017 Gary McDonald

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
2016 Julie Watson
Clematis lasiantha
2016 Julie Ann Watson
Clematis lasiantha
2018 Steve Matson

Clematis ligusticifolia    Creek clematis,  Western white clematis,  Yerba de chiva
native
Perennial herb, Vine

RANUNCULACEAE

Clematis ligusticifolia
2018 Diane Etchison
Clematis ligusticifolia
2012 Steve Matson
Clematis ligusticifolia
2012 Steve Matson

Clinopodium douglasii    Yerba buena
native
Perennial herb

LAMIACEAE

Clinopodium douglasii
2019 Gary McDonald
Clinopodium douglasii
2012 Gary McDonald
Clinopodium douglasii
2012 Gary McDonald

Collinsia heterophylla var. heterophylla    Purple chinese houses,  Chinese-Houses
native
Annual herb

PLANTAGINACEAE

Collinsia heterophylla var. heterophylla
2022 R.A. Chasey
Collinsia heterophylla var. heterophylla
2019 Jacob Smith
Collinsia heterophylla var. heterophylla
2023 R.A. Chasey

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

Collomia heterophylla    Variableleaf collomia,  Varied leaved collomia
native
Annual herb

POLEMONIACEAE

Collomia heterophylla
2018 Stacie Wolny
Collomia heterophylla
2017 Steve Matson
Collomia heterophylla
2018 Parker Santiago

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

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

CONVOLVULACEAE

Convolvulus arvensis
2022 Steve Matson
Convolvulus arvensis
2021 Ron Vanderhoff
Convolvulus arvensis
2022 Steve Matson

native
Perennial herb

ORCHIDACEAE

Corallorhiza maculata var. occidentalis
2018 Timothy Boomer
Corallorhiza maculata var. occidentalis
2022 Michael Heine
Corallorhiza maculata var. occidentalis
2020 Bob Sweatt

Corallorhiza striata    Hooded coralroot,  Striped coral root
native
Perennial herb

ORCHIDACEAE

Corallorhiza striata
2021 Mary Ann Machi
Corallorhiza striata
2022 Steve Conger
Corallorhiza striata
2019 Timothy Boomer

Cordylanthus pilosus ssp. pilosus    Hairy bird's beak
native
Annual herb

OROBANCHACEAE

Cordylanthus pilosus ssp. pilosus
2022 R.A. Chasey
Cordylanthus pilosus ssp. pilosus
2022 R.A. Chasey
Cordylanthus pilosus ssp. pilosus
2015 John Doyen

Cordylanthus rigidus ssp. rigidus    Rigid bird's beak,  Stiffbranch bird's beak
native
Annual herb

OROBANCHACEAE

Cordylanthus rigidus ssp. rigidus
2021 Mike Russler
Cordylanthus rigidus ssp. rigidus
2021 Mike Russler
Cordylanthus rigidus ssp. rigidus
2021 Mike Russler

Coreopsis tinctoria    Calliopsis,  Golden tickseed
non-native
Annual herb

ASTERACEAE

Coreopsis tinctoria
2015 Leah Bedoian
Coreopsis tinctoria
2020 Joe Woods
Coreopsis tinctoria
2020 Joe Woods

Cornus glabrata    Brown dogwood
native
Tree, Shrub

CORNACEAE

Cornus glabrata
2021 Donald Burk
Cornus glabrata
2021 Barbara Peck
Cornus glabrata
2021 John Rawlings

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

CORNACEAE

Cornus sericea ssp. sericea
2003 Steve Matson
Cornus sericea ssp. sericea
2019 Richard Spjut
Cornus sericea ssp. sericea
2020 Doug Allshouse

Cortaderia selloana    Uruguayan pampas grass
invasive non-native
Perennial grass

POACEAE

Cortaderia selloana
2022 Ken-ichi Ueda
Cortaderia selloana
2023 Randall English
Cortaderia selloana
2022 Ron Vanderhoff

Corylus cornuta ssp. californica    Beaked hazelnut
native
Shrub

BETULACEAE

Corylus cornuta ssp. californica
2017 Steve Matson
Corylus cornuta ssp. californica
2017 Steve Matson
Corylus cornuta ssp. californica
2017 Steve Matson

Cotoneaster pannosus    Cotoneaster,  Silverleaf cotoneaster,  Woolly cotoneaster
invasive non-native
Shrub

ROSACEAE

Cotoneaster pannosus
2021 David Wolfson
Cotoneaster pannosus
2019 Cynthia Powell
Cotoneaster pannosus
2018 MCOSD EDRR

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

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

ASTERACEAE

Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2018 Adam Chasey

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

Crassula tillaea    Mediterranean pygmy weed,  Moss pygmyweed
non-native
Annual herb

CRASSULACEAE

Crassula tillaea
2019 Ron Vanderhoff
Crassula tillaea
2019 Ron Vanderhoff
Crassula tillaea
2019 Ron Vanderhoff

Crataegus laevigata    Smooth hawthorn
non-native
Tree, Shrub

ROSACEAE


Crataegus monogyna    Hawthorn
invasive non-native
Shrub

ROSACEAE

Crataegus monogyna
2022 Emily R. Allen
Crataegus monogyna
2021 Isaac Kreger
Crataegus monogyna
2021 Sherry Adams

Crepis vesicaria ssp. taraxacifolia    Beaked hawksbeard,  Weedy hawksbeard
non-native
Annual, Perennial herb

ASTERACEAE

Crepis vesicaria ssp. taraxacifolia
2011 Toni Corelli
Crepis vesicaria ssp. taraxacifolia
2010 Neal Kramer
Crepis vesicaria ssp. taraxacifolia
2010 Toni Corelli

Croton setigerus    Turkey-mullein
native
Annual herb

EUPHORBIACEAE

Croton setigerus
2011 Steve Matson
Croton setigerus
2011 Steve Matson
Croton setigerus
2014 Richard Chasey

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

POACEAE

Crypsis schoenoides
2023 Ron Vanderhoff
Crypsis schoenoides
2018 Ron Vanderhoff
Crypsis schoenoides
2019 Ron Vanderhoff

Crypsis vaginiflora    African prickle grass,  African pricklegrass
non-native
Annual grass

POACEAE

Crypsis vaginiflora
2018 David popp
Crypsis vaginiflora
2021 John Rawlings
Crypsis vaginiflora
2023 R.A. Chasey

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 micromeres    Minute flowered cryptantha,  Pygmyflower cryptantha,  Small flowered cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha micromeres
2021 Jodi McGraw
Cryptantha micromeres
2020 Ken Hickman
Cryptantha micromeres
2019 John Rawlings

Cryptantha microstachys    Popcorn flower,  Tejon cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha microstachys
2019 Diane Etchison
Cryptantha microstachys
2018 Ron Vanderhoff
Cryptantha microstachys
2017 Diane Etchison

Cryptantha torreyana var. pumila    Dwarf cryptantha
native
Annual herb

BORAGINACEAE

Cryptantha torreyana var. pumila
2018 Michael Mitchell
Cryptantha torreyana var. pumila
2020 Ken Hickman
Cryptantha torreyana var. pumila
2023 John Rawlings

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

CONVOLVULACEAE

Cuscuta californica var. californica
2021 R.A. Chasey
Cuscuta californica var. californica
2021 Ron Vanderhoff
Cuscuta californica var. californica
2021 Ron Vanderhoff

Cuscuta occidentalis    California dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta occidentalis
2022 R.A. Chasey
Cuscuta occidentalis
2018 David popp
Cuscuta occidentalis
2022 R.A. Chasey

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

Cynoglossum grande    Hound's tongue,  Western houndstongue,  Adelinia
native
Perennial herb

BORAGINACEAE

Cynoglossum grande
2022 David Strauch
Cynoglossum grande
2007 Steve Matson
Cynoglossum grande
2021 Dee Shea Himes

Cynosurus echinatus    Annual dogtail,  Bristly dogstail grass,  Dogtail grass
invasive non-native
Annual grass

POACEAE

Cynosurus echinatus
2017 Gary McDonald
Cynosurus echinatus
2010 Julie A. Kierstead
Cynosurus echinatus
2022 Ron Vanderhoff

Cyperus difformis    Variable flatsedge
non-native
Annual grasslike herb

CYPERACEAE

Cyperus difformis
2022 Ron Vanderhoff
Cyperus difformis
2017 Ron Vanderhoff
Cyperus difformis
2021 Donald Burk

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

Cyperus erythrorhizos    Red rooted cyperus,  Redroot flatsedge
native
Annual grasslike herb

CYPERACEAE

Cyperus erythrorhizos
2003 Steve Matson

Cystopteris fragilis    Bladder fern,  Brittle bladder fern,  Brittle fern
native
Fern

CYSTOPTERIDACEAE

Cystopteris fragilis
2020 Bob Sweatt
Cystopteris fragilis
2021 Mike Russler
Cystopteris fragilis
2023 Ken-ichi Ueda

Dactylis glomerata    Orchard grass,  Orchardgrass
invasive non-native
Perennial grass

POACEAE

Dactylis glomerata
2018 Jennifer Mo
Dactylis glomerata
2020 Jim Richards
Dactylis glomerata
2017 Gary McDonald

Danthonia californica    California oatgrass
native
Perennial grass

POACEAE

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

Datisca glomerata    Durango root
native
Perennial herb

DATISCACEAE

Datisca glomerata
2019 Ron Vanderhoff
Datisca glomerata
2019 Diane Etchison
Datisca glomerata
2019 Matt Berger

Datura stramonium    Jimson weed,  Jimsonweed
non-native
Annual herb

SOLANACEAE

Datura stramonium
2011 Steve Matson
Datura stramonium
2011 Steve Matson
Datura stramonium
2020 Ron Vanderhoff

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

Deinandra corymbosa    Coastal tarweed
native
Annual herb

ASTERACEAE

Deinandra corymbosa
2016 Michael Mitchell
Deinandra corymbosa
2018 Zachariah Jordan
Deinandra corymbosa
2015 Tim Miller

Delairea odorata    Cape ivy
invasive non-native
Perennial herb

ASTERACEAE

Delairea odorata
2019 Ron Vanderhoff
Delairea odorata
2019 Ron Vanderhoff
Delairea odorata
2019 Ron Vanderhoff

native
Perennial herb

RANUNCULACEAE

Delphinium californicum ssp. californicum
2010 Toni Corelli
Delphinium californicum ssp. californicum
2022 R.A. Chasey
Delphinium californicum ssp. californicum
2022 R.A. Chasey

Delphinium hesperium ssp. hesperium    Foothill larkspur,  Western larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium hesperium ssp. hesperium
2018 Steve Matson
Delphinium hesperium ssp. hesperium
2018 Steve Matson
Delphinium hesperium ssp. hesperium
2016 Andrew Longman

Delphinium patens ssp. patens    Spreading larkspur,  Zigzag larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium patens ssp. patens
2014 Michael Mitchell
Delphinium patens ssp. patens
2022 Mary Conway
Delphinium patens ssp. patens
2022 Mary Conway

native
Perennial herb

RANUNCULACEAE

Delphinium variegatum ssp. variegatum
2023 Hunter Breck
Delphinium variegatum ssp. variegatum
2022 Mike Russler
Delphinium variegatum ssp. variegatum
2022 Mike Russler

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

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

Deschampsia elongata    Hairgrass,  Slender hairgrass
native
Perennial grass

POACEAE

Deschampsia elongata
2021 John Rawlings
Deschampsia elongata
2021 John Rawlings
Deschampsia elongata
2023 Robert Steers

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

THEMIDACEAE

Dichelostemma capitatum ssp. capitatum
2017 Alison Sheehey
Dichelostemma capitatum ssp. capitatum
Geoff Burleigh
Dichelostemma capitatum ssp. capitatum
2015 Ken Lunders

Dichelostemma congestum    Fork toothed ookow,  Ookow
native
Perennial herb

THEMIDACEAE

Dichelostemma congestum
2017 Gary Morgret
Dichelostemma congestum
2019 Suzanne L. Weakley
Dichelostemma congestum
2023 Teal Derrer

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

Digitalis purpurea    Purple foxglove
invasive non-native
Perennial herb

PLANTAGINACEAE

Digitalis purpurea
2016 Steve Matson
Digitalis purpurea
2016 Steve Matson
Digitalis purpurea
2016 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

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

DIPSACACEAE

Dipsacus sativus
2019 Danielle Carney
Dipsacus sativus
2022 Jennifer Mo
Dipsacus sativus
2022 David Strauch

Dirca occidentalis    Western leatherwood
rare native
Shrub

THYMELAEACEAE

Dirca occidentalis
2017 John Game
Dirca occidentalis
2024 William Blaker
Dirca occidentalis
2018 David Greenberger

Dittrichia graveolens    Stinkwort
invasive non-native
Annual herb

ASTERACEAE

Dittrichia graveolens
2017 Bob Huttar
Dittrichia graveolens
2019 Ron Vanderhoff
Dittrichia graveolens
2019 Ron Vanderhoff

Dodecatheon clevelandii ssp. patulum    Padre's shooting star
native
Perennial herb

PRIMULACEAE

Dodecatheon clevelandii ssp. patulum
2006 Steve Matson
Dodecatheon clevelandii ssp. patulum
2006 Steve Matson
Dodecatheon clevelandii ssp. patulum
2006 Steve Matson

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

native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. wrangelliana
2020 Mary Conway
Drymocallis glandulosa var. wrangelliana
2017 Gary McDonald
Drymocallis glandulosa var. wrangelliana
2017 Gary McDonald

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

Duchesnea indica var. indica    Mock-strawberry
non-native
Perennial herb

ROSACEAE

Duchesnea indica var. indica
2012 Ramona Robison
Duchesnea indica var. indica
2020 R.A. Chasey
Duchesnea indica var. indica
2020 R.A. Chasey

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania ambrosioides
2020 Ron Vanderhoff
Dysphania ambrosioides
2018 Ron Vanderhoff
Dysphania ambrosioides
2020 Ron Vanderhoff

Dysphania multifida    Cut leaved goosefoot
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania multifida
2017 James Bailey
Dysphania multifida
2023 Maria Alvarez
Dysphania multifida
2023 Maria Alvarez

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

Echinodorus berteroi    Burhead,  Upright burrhead
native
Perennial herb (aquatic)

ALISMATACEAE

Echinodorus berteroi
2019 Neal Kramer
Echinodorus berteroi
2021 Ron Vanderhoff
Echinodorus berteroi
2019 Neal Kramer

Ehrharta erecta    Panic veldtgrass,  Upright veldt grass
invasive non-native
Perennial grass

POACEAE

Ehrharta erecta
2023 Rachel Suding
Ehrharta erecta
2020 Ron Vanderhoff
Ehrharta erecta
2020 Ron Vanderhoff

Elatine brachysperma    Short seed waterwort,  Shortseed waterwort
native
Annual, Perennial herb

ELATINACEAE

Elatine brachysperma
2023 Ron Vanderhoff
Elatine brachysperma
2023 Ron Vanderhoff
Elatine brachysperma
2023 Ron Vanderhoff

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

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

POACEAE

Elymus glaucus ssp. glaucus
2014 Toni Corelli
Elymus glaucus ssp. glaucus
2021 Arlee Montalvo
Elymus glaucus ssp. glaucus
2022 Ron Vanderhoff

Elymus glaucus ssp. virescens    Blue wildrye,  Virginia wildrye
native
Perennial grass

POACEAE

Elymus glaucus ssp. virescens
2023 John Rawlings
Elymus glaucus ssp. virescens
2012 Toni Corelli
Elymus glaucus ssp. virescens
2023 John Rawlings

Elymus multisetus    Big squirreltail grass
native
Perennial grass

POACEAE

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

Elymus triticoides    Beardless wild rye
native
Perennial grass

POACEAE

Elymus triticoides
2018 Ron Vanderhoff
Elymus triticoides
2021 Ron Vanderhoff
Elymus triticoides
2018 Rachelle Gray

Elymus xgouldii    Many flowered wild rye
native
Perennial grass

POACEAE

Elymus xgouldii
2016 Margot Cunningham
Elymus xgouldii
2019 Ken Hickman
Elymus xgouldii
2019 John Rawlings

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

ONAGRACEAE

Epilobium brachycarpum
2023 Mary Ann Machi
Epilobium brachycarpum
2019 Ramona Robison
Epilobium brachycarpum
2020 Ron Vanderhoff

Epilobium ciliatum ssp. ciliatum    Fringed willowherb,  Northern willow herb,  Willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum ssp. ciliatum
2017 Gary McDonald
Epilobium ciliatum ssp. ciliatum
2019 Gary McDonald
Epilobium ciliatum ssp. ciliatum
2019 Ron Vanderhoff

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

Epilobium torreyi    Narrow boisduvalia,  Narrow leaved boisduvalia,  Torrey's willowherb
native
Annual herb

ONAGRACEAE

Epilobium torreyi
2022 Mark Gary
Epilobium torreyi
2019 Ken Hickman
Epilobium torreyi
2022 R.A. Chasey

Epipactis helleborine    Broadleaf helleborine
non-native
Perennial herb

ORCHIDACEAE

Epipactis helleborine
2020 Cara Wilcox
Epipactis helleborine
2019 Stacie Wolny
Epipactis helleborine
2022 David Strauch

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

EQUISETACEAE

Equisetum arvense
2022 Suzanne L. Weakley
Equisetum arvense
2021 Cynthia Powell
Equisetum arvense
2016 Cynthia Powell

Equisetum hyemale ssp. affine    Giant scouring rush
native
Fern

EQUISETACEAE

Equisetum hyemale ssp. affine
2013 Michael Mitchell
Equisetum hyemale ssp. affine
2021 Ron Vanderhoff
Equisetum hyemale ssp. affine
2013 Michael Mitchell

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

EQUISETACEAE

Equisetum telmateia ssp. braunii
2016 Steve Matson
Equisetum telmateia ssp. braunii
2016 Steve Matson
Equisetum telmateia ssp. braunii
2022 Suzanne L. Weakley

native
Annual grass

POACEAE

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

Eriastrum abramsii    Abrams' eriastrum,  Abrams' woollystar
native
Annual herb

POLEMONIACEAE

Eriastrum abramsii
2019 Diane Renshaw
Eriastrum abramsii
2021 Alice Cummings
Eriastrum abramsii
2019 Stacie Wolny

Erigeron bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Erigeron bonariensis
2021 Donald Burk
Erigeron bonariensis
2017 Gary McDonald
Erigeron bonariensis
2023 Ron Vanderhoff

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

Erigeron canadensis
2017 Gary McDonald
Erigeron canadensis
2017 Gary McDonald
Erigeron canadensis
2022 Mike Russler

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

Erigeron karvinskianus    Fleabane,  Latin american fleabane
invasive non-native
Perennial herb

ASTERACEAE

Erigeron karvinskianus
2023 R.A. Chasey
Erigeron karvinskianus
2019 Gary McDonald
Erigeron karvinskianus
2023 R.A. Chasey

Erigeron sumatrensis    Tropical horseweed
non-native
Annual herb

ASTERACEAE

Erigeron sumatrensis
2021 Doug Allshouse
Erigeron sumatrensis
2020 Ron Vanderhoff
Erigeron sumatrensis
2020 Ron Vanderhoff

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 luteolum var. luteolum    Golden buckwheat,  Goldencarpet buckwheat
native
Annual herb

POLYGONACEAE

Eriogonum luteolum var. luteolum
2011 Steve Matson
Eriogonum luteolum var. luteolum
2021 Charles Russell
Eriogonum luteolum var. luteolum
2021 Charles Russell

Eriogonum nudum var. auriculatum    Naked buckwheat,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum var. auriculatum
2020 R.A. Chasey
Eriogonum nudum var. auriculatum
2020 R.A. Chasey
Eriogonum nudum var. auriculatum
2020 R.A. Chasey

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

Eriophyllum lanatum var. arachnoideum    Common woolly sunflower,  Spiderweb sunflower,  Wooly sunflower
native
Perennial herb

ASTERACEAE

Eriophyllum lanatum var. arachnoideum
2013 James Gonsman
Eriophyllum lanatum var. arachnoideum
2022 David Wolfson
Eriophyllum lanatum var. arachnoideum
2023 R.A. Chasey

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

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

GERANIACEAE

Erodium moschatum
2016 Steve Matson
Erodium moschatum
2016 Steve Matson
Erodium moschatum
2016 Steve Matson

Eryngium jepsonii    Jepson's eryngo
rare native
Perennial herb

APIACEAE

Eryngium jepsonii
2022 R.A. Chasey
Eryngium jepsonii
2021 R.A. Chasey
Eryngium jepsonii
2019 Ken Hickman

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

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

MYRTACEAE

Eucalyptus globulus
2022 Ron Vanderhoff
Eucalyptus globulus
2022 Ron Vanderhoff
Eucalyptus globulus
2022 Ron Vanderhoff

Euonymus occidentalis var. occidentalis    Western burning bush
native
Tree, Shrub

CELASTRACEAE

Euonymus occidentalis var. occidentalis
2021 Chris Brant
Euonymus occidentalis var. occidentalis
2019 Toni Corelli
Euonymus occidentalis var. occidentalis
2021 Chris Brant

Euphorbia lathyris    Compass plant,  Gopher plant,  Moleplant
invasive non-native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia lathyris
2017 Aaron Echols
Euphorbia lathyris
2021 Mike Russler
Euphorbia lathyris
2017 Ron Vanderhoff

Euphorbia oblongata    Eggleaf spurge
invasive non-native
Perennial herb

EUPHORBIACEAE

Euphorbia oblongata
2017 Gary McDonald
Euphorbia oblongata
2019 Randy Huey
Euphorbia oblongata
2017 Gary McDonald

Euphorbia peplus    Petty spurge
non-native
Annual herb

EUPHORBIACEAE

Euphorbia peplus
2006 Steve Matson
Euphorbia peplus
2022 Alice Cummings
Euphorbia peplus
2005 Luigi Rignanese

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

Eurybia radulina    Roughleaf aster
native
Perennial herb

ASTERACEAE

Eurybia radulina
2007 Keir Morse
Eurybia radulina
2023 Ken-ichi Ueda
Eurybia radulina
2022 Bob Sweatt

Euthamia occidentalis    Western flat topped goldenrod,  Western goldenrod,  Western goldentop
native
Perennial herb

ASTERACEAE

Euthamia occidentalis
2021 Steve Matson
Euthamia occidentalis
2018 Ron Vanderhoff
Euthamia occidentalis
2021 R.A. Chasey

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

POACEAE

Festuca arundinacea
2022 Cynthia Powell
Festuca arundinacea
2020 Robert Steers
Festuca arundinacea
2017 MCOSD EDRR

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

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

Festuca californica    California fescue
native
Perennial grass

POACEAE

Festuca californica
2019 Justin Luong
Festuca californica
2022 Justin Luong
Festuca californica
2012 Aaron Arthur

Festuca elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

Festuca elmeri
2019 Ken Hickman
Festuca elmeri
2022 John Rawlings
Festuca elmeri
2007 Toni Corelli

Festuca microstachys    Small fescue
native
Annual grass

POACEAE

Festuca microstachys
2022 Aaron Sunshine
Festuca microstachys
2011 Steve Matson
Festuca microstachys
2011 Steve Matson

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Festuca myuros
2021 Aaron Echols
Festuca myuros
2021 Ron Vanderhoff
Festuca myuros
2022 John Rawlings

Festuca octoflora    Sixweeks grass
native
Annual grass

POACEAE

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

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

POACEAE

Festuca perennis
2019 Ron Vanderhoff
Festuca perennis
2017 Gary McDonald
Festuca perennis
2021 Ron Vanderhoff

Festuca rubra    Red fescue
native
Perennial grass

POACEAE

Festuca rubra
2012 Ove Anderson
Festuca rubra
2022 John Rawlings
Festuca rubra
2018 Alexandra Kookootsedes

Festuca temulenta    Darnel, tares
non-native
Annual grass

POACEAE

Festuca temulenta
2016 Spade Natural Resources Consulting
Festuca temulenta
2020 David popp
Festuca temulenta
2019 Stephany Dery

Ficus carica    Common fig,  Edible fig
invasive non-native
Tree

MORACEAE

Ficus carica
2019 Ron Vanderhoff
Ficus carica
2022 Ron Vanderhoff
Ficus carica
2018 Vicki Salazar

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

Fragaria vesca    California strawberry,  Wild strawberry,  Wood strawberry
native
Perennial herb

ROSACEAE

Fragaria vesca
2020 Cara Wilcox
Fragaria vesca
2017 James Gonsman
Fragaria vesca
2022 Dee Shea Himes

Frangula californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. californica
2015 Steve Matson
Frangula californica ssp. californica
2015 Steve Matson
Frangula californica ssp. californica
2019 Ron Vanderhoff

Frangula californica ssp. tomentella    Hoary coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. tomentella
2020 R.A. Chasey
Frangula californica ssp. tomentella
2016 Ron Vanderhoff
Frangula californica ssp. tomentella
2023 Ron Vanderhoff

Fritillaria affinis    Checker lily,  Mission bells
native
Perennial herb (bulb)

LILIACEAE

Fritillaria affinis
2017 Steve Matson
Fritillaria affinis
2008 Steve Matson
Fritillaria affinis
2008 Steve Matson

Fumaria capreolata    White ramping fumitory
non-native
Perennial herb

PAPAVERACEAE

Fumaria capreolata
2023 David Wolfson
Fumaria capreolata
2020 Eric Wrubel
Fumaria capreolata
2024 Mike Russler

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 californicum ssp. californicum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum ssp. californicum
2018 Ken Hickman
Galium californicum ssp. californicum
2017 Ken Hickman
Galium californicum ssp. californicum
2015 James Gonsman

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. porrigens    Climbing bedstraw,  Graceful bedstraw,  Oval leaved bedstraw
native
Vine, Shrub

RUBIACEAE

Galium porrigens var. porrigens
2022 Ron Vanderhoff
Galium porrigens var. porrigens
2022 Ron Vanderhoff
Galium porrigens var. porrigens
2022 Julia Larke

Galium triflorum    Fragrant bedstraw,  Sweet bedstraw,  Sweet scented bedstraw
native
Annual herb

RUBIACEAE

Galium triflorum
2022 Ken-ichi Ueda
Galium triflorum
2022 Ken-ichi Ueda
Galium triflorum
2018 Ken Hickman

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

Gamochaeta ustulata
2019 Gary McDonald
Gamochaeta ustulata
2021 Zoya Akulova-Barlow
Gamochaeta ustulata
2019 Gary McDonald

Garrya elliptica    Coast silk tassel,  Coast silktassel,  Silk tassel bush or quinine bush
native
Tree, Shrub

GARRYACEAE

Garrya elliptica
2004 Michael Charters
Garrya elliptica
2020 John Rawlings
Garrya elliptica
2020 Eliezer Margolis

Gastridium phleoides    Nit grass
non-native
Annual grass

POACEAE

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

Genista maderensis    Madeira dyer's greenweed,  Madera broom
non-native
Shrub

FABACEAE


Genista monspessulana    French broom
invasive non-native
Shrub

FABACEAE

Genista monspessulana
2019 Ron Vanderhoff
Genista monspessulana
2019 Ron Vanderhoff
Genista monspessulana
2021 Michelle Karle

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

Geranium molle    Crane's bill geranium,  Dove's foot geranium,  Dovefoot geranium
invasive non-native
Annual, Perennial herb

GERANIACEAE

Geranium molle
2008 Steve Matson
Geranium molle
2008 Steve Matson
Geranium molle
2008 Steve Matson

Geranium robertianum    herb Robert
invasive non-native
Annual herb

GERANIACEAE

Geranium robertianum
2016 Steve Matson
Geranium robertianum
2016 Steve Matson
Geranium robertianum
2016 Steve Matson

Gilia achilleifolia ssp. multicaulis    Many stemmed california gilia,  Many stemmed gilia
native
Annual herb

POLEMONIACEAE

Gilia achilleifolia ssp. multicaulis
2022 Ron Vanderhoff
Gilia achilleifolia ssp. multicaulis
2021 Ron Vanderhoff
Gilia achilleifolia ssp. multicaulis
2022 Ron Vanderhoff

Gilia clivorum    Many stemmed gilia,  Purple spot gilia,  Purplespot gilia
native
Annual herb

POLEMONIACEAE

Gilia clivorum
2013 Gary McDonald
Gilia clivorum
2013 Gary McDonald
Gilia clivorum
2021 Helen Hancock

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

POACEAE

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

Glycyrrhiza lepidota    American licorice,  Lichorice,  Wild licorice
native
Perennial herb

FABACEAE

Glycyrrhiza lepidota
2010 Steve Matson
Glycyrrhiza lepidota
2010 Steve Matson
Glycyrrhiza lepidota
2010 Steve Matson

Gnaphalium palustre    Lowland cudweed,  Western marsh cudweed
native
Annual herb

ASTERACEAE

Gnaphalium palustre
2019 Ron Vanderhoff
Gnaphalium palustre
2005 Steve Matson
Gnaphalium palustre
2019 Ron Vanderhoff

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

Grindelia hirsutula    Gumweed,  Hairy gumweed
native
Perennial herb

ASTERACEAE

Grindelia hirsutula
2021 R.A. Chasey
Grindelia hirsutula
2020 R.A. Chasey
Grindelia hirsutula
2015 Ken Lunders

Hainardia cylindrica    Barbgrass,  Monerma,  Thin tail
non-native
Annual grass

POACEAE

Hainardia cylindrica
2022 Denise Defreese
Hainardia cylindrica
2009 Neal Kramer
Hainardia cylindrica
2009 Neal Kramer

Hedera helix    English ivy
invasive non-native
Vine, Shrub

ARALIACEAE

Hedera helix
2019 Claire Mallen
Hedera helix
2017 Allison Titus
Hedera helix
2022 Catherine Talbot

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
2021 Mike Russler
Helenium puberulum
2019 Patrick Furtado
Helenium puberulum
2018 Rachelle Gray

Helianthella californica var. californica    California helianthella
native
Perennial herb

ASTERACEAE

Helianthella californica var. californica
2023 Helen Hancock
Helianthella californica var. californica
2023 Helen Hancock
Helianthella californica var. californica
2019 Chasey

Helianthemum scoparium    Peak Rushrose
native
Shrub

CISTACEAE

Helianthemum scoparium
2018 Amy Rapport
Helianthemum scoparium
2023 Ron Vanderhoff
Helianthemum scoparium
2022 R.A. Chasey

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

HELIOTROPIACEAE

Heliotropium curassavicum var. oculatum
2019 Rachelle Gray
Heliotropium curassavicum var. oculatum
2018 Ron Vanderhoff
Heliotropium curassavicum var. oculatum
2019 Ron Vanderhoff

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

ASTERACEAE

Helminthotheca echioides
2016 Hayley Ross
Helminthotheca echioides
2019 Rachelle Gray
Helminthotheca echioides
2012 Elizabeth Brusati

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

ASTERACEAE

Hemizonia congesta ssp. luzulifolia
2013 Arcangelo Wessells
Hemizonia congesta ssp. luzulifolia
2022 R.A. Chasey
Hemizonia congesta ssp. luzulifolia
2022 R.A. Chasey

Heracleum maximum    Common cow parsnip
native
Perennial herb

APIACEAE

Heracleum maximum
2019 Bob Sweatt
Heracleum maximum
2008 Neal Kramer
Heracleum maximum
2021 Julie A. Kierstead

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

ASTERACEAE

Hesperevax sparsiflora var. sparsiflora
2020 Stacie Wolny
Hesperevax sparsiflora var. sparsiflora
2020 R.A. Chasey
Hesperevax sparsiflora var. sparsiflora
2021 R.A. Chasey

Hesperocnide tenella    Western nettle,  Western stinging nettle,  Western stingingnettle
native
Annual herb

URTICACEAE

Hesperocnide tenella
2023 Ken-ichi Ueda
Hesperocnide tenella
2006 Steve Matson
Hesperocnide tenella
2020 Ken Hickman

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

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. echioides    Bristly goldenaster,  Sessileflower false goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca sessiliflora ssp. echioides
2021 Mike Russler
Heterotheca sessiliflora ssp. echioides
2021 Mike Russler
Heterotheca sessiliflora ssp. echioides
2018 Ron Vanderhoff

Heuchera micrantha    Alum root,  Crevice alumroot
native
Perennial herb

SAXIFRAGACEAE

Heuchera micrantha
2008 Steve Matson
Heuchera micrantha
2008 Steve Matson
Heuchera micrantha
2008 Steve Matson

Hieracium albiflorum    White flowered hawkweed,  White hawkweed
native
Perennial herb

ASTERACEAE

Hieracium albiflorum
2003 Steve Matson
Hieracium albiflorum
2021 Doug Allshouse
Hieracium albiflorum
2020 Bob Sweatt

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

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

POACEAE

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

native
Shrub

ROSACEAE

Holodiscus discolor var. discolor
2022 R.A. Chasey
Holodiscus discolor var. discolor
2021 R.A. Chasey
Holodiscus discolor var. discolor
2010 Avis Boutell

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 var. californica    California horkelia
native
Perennial herb

ROSACEAE

Horkelia californica var. californica
2020 Mary Conway
Horkelia californica var. californica
2021 Mary Conway
Horkelia californica var. californica
2015 Toni Corelli

Hyacinthoides hispanica    Hispanic hyacinthoides
non-native
Perennial herb (bulb)

LILIACEAE


Hypericum calycinum    Aaron's beard
non-native
Shrub

HYPERICACEAE

Hypericum calycinum
2019 Zachary Snider
Hypericum calycinum
2018 Brian Charles
Hypericum calycinum
2021 Lenihan Mazur

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

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

ASTERACEAE

Hypochaeris radicata
2024 Ron Vanderhoff
Hypochaeris radicata
2017 Gary McDonald
Hypochaeris radicata
2016 Michael Mitchell

Iberis umbellata    Globe candytuft
non-native
Annual herb

BRASSICACEAE

Iberis umbellata
2018 David Greenberger
Iberis umbellata
2018 David Greenberger

Impatiens balfourii    Balfour's touch me not
non-native
Perennial herb

BALSAMINACEAE

Impatiens balfourii
2019 Randy Huey
Impatiens balfourii
2019 Randy Huey
Impatiens balfourii
2006 Peter Zika

Iris douglasiana    Douglas iris,  Douglas' iris
native
Perennial herb

IRIDACEAE

Iris douglasiana
2020 Susan McDougall
Iris douglasiana
2019 Patrick Furtado
Iris douglasiana
2022 Suzanne L. Weakley

Iris foetidissima    Stinking iris
non-native
Perennial herb

IRIDACEAE

Iris foetidissima
2021 Cynthia Powell
Iris foetidissima
2022 John Doyen
Iris foetidissima
2021 Jennifer Mo

Iris pseudacorus    Horticultural iris,  Paleyellow iris,  Yellowflag iris
invasive non-native
Perennial herb

IRIDACEAE

Iris pseudacorus
2021 Jennifer Mo
Iris pseudacorus
2021 Mary Herr
Iris pseudacorus
2017 Nick Graver

Juglans hindsii    Northern california black walnut
rare native
Tree

JUGLANDACEAE

Juglans hindsii
2016 Steve Matson
Juglans hindsii
2016 Steve Matson
Juglans hindsii
2018 Ron Vanderhoff

Juncus bolanderi    Bolander's rush
native
Perennial grasslike herb

JUNCACEAE

Juncus bolanderi
2019 Ken Hickman
Juncus bolanderi
2019 Ken Hickman
Juncus bolanderi
2019 John Rawlings

native
Annual grasslike herb

JUNCACEAE

Juncus bufonius var. bufonius
2021 John Rawlings
Juncus bufonius var. bufonius
2023 R.A. Chasey
Juncus bufonius var. bufonius
2019 Ron Vanderhoff

Juncus bufonius var. occidentalis    Round fruited toad rush,  Western toad rush
native
Perennial grasslike herb

JUNCACEAE

Juncus bufonius var. occidentalis
2004 Steve Matson

Juncus effusus ssp. pacificus    Pacific rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus ssp. pacificus
2009 Toni Corelli
Juncus effusus ssp. pacificus
2021 R.A. Chasey
Juncus effusus ssp. pacificus
2021 John Rawlings

Juncus hesperius    Coast or bog rush
native
Perennial grasslike herb

JUNCACEAE

Juncus hesperius
2004 Steve Matson

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

JUNCACEAE

Juncus occidentalis
2021 Toni Corelli
Juncus occidentalis
2021 Dick Rawson
Juncus occidentalis
2021 Dick Rawson

Juncus patens    Common rush,  Spreading rush
native
Perennial grasslike herb

JUNCACEAE

Juncus patens
2022 R.A. Chasey
Juncus patens
2022 R.A. Chasey
Juncus patens
2018 Emily Allen

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

JUNCACEAE

Juncus phaeocephalus var. paniculata
2021 Cynthia Powell
Juncus phaeocephalus var. paniculata
2021 Cynthia Powell
Juncus phaeocephalus var. paniculata
2017 Toni Corelli

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

Keckiella antirrhinoides var. antirrhinoides    Chaparral beard tongue
native
Shrub

PLANTAGINACEAE

Keckiella antirrhinoides var. antirrhinoides
2020 Ron Vanderhoff
Keckiella antirrhinoides var. antirrhinoides
2019 Ron Vanderhoff
Keckiella antirrhinoides var. antirrhinoides
2020 Diane Etchison

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

PLANTAGINACEAE

Kickxia elatine
2023 John Malpas
Kickxia elatine
2018 Ron Vanderhoff
Kickxia elatine
2016 Barbara Boethling

Kickxia spuria    Fluellin,  Roundleaf cancerwort
non-native
Perennial herb

PLANTAGINACEAE

Kickxia spuria
2020 David Wolfson
Kickxia spuria
2020 Vivian Neou
Kickxia spuria
2023 R.A. Chasey

Kniphofia uvaria    Redhot poker
invasive non-native
Perennial herb

ASPHODELACEAE

Kniphofia uvaria
2022 Michael Mitchell
Kniphofia uvaria
2021 Avis Boutell
Kniphofia uvaria
2013 Michael Mitchell

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2023 Helen Hancock
Koeleria macrantha
2015 Steve Matson
Koeleria macrantha
2015 Steve Matson

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

Lactuca virosa    Bitter lettuce,  Poison wild lettuce
non-native
Perennial herb

ASTERACEAE

Lactuca virosa
2019 Randy Huey
Lactuca virosa
2022 R.A. Chasey
Lactuca virosa
2010 Cynthia Powell

Lagophylla ramosissima    Branched lagophylla,  Common hareleaf
native
Annual herb

ASTERACEAE

Lagophylla ramosissima
2019 Diane Etchison
Lagophylla ramosissima
2021 Dee Shea Himes
Lagophylla ramosissima
2020 Ken Hickman

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

Lamium purpureum    Henbit,  Purple dead nettle,  Purple deadnettle
non-native
Annual herb

LAMIACEAE

Lamium purpureum
2022 Emily R. Allen
Lamium purpureum
2023 R.A. Chasey
Lamium purpureum
2020 Cynthia Powell

Lapsana communis    Common nipplewort,  Nipplewort
non-native
Annual herb

ASTERACEAE

Lapsana communis
2019 Jennifer Mo
Lapsana communis
2021 R.A. Chasey
Lapsana communis
2019 Jennifer Mo

Lasthenia californica ssp. californica    California goldfields
native
Annual herb

ASTERACEAE

Lasthenia californica ssp. californica
2021 Charles Russell
Lasthenia californica ssp. californica
2022 Steve Matson
Lasthenia californica ssp. californica
2015 Toni Corelli

Lasthenia gracilis    Needle goldfields
native
Annual herb

ASTERACEAE

Lasthenia gracilis
2014 Steve Matson
Lasthenia gracilis
2014 Steve Matson
Lasthenia gracilis
2014 Steve Matson

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

FABACEAE

Lathyrus latifolius
2020 Jutta Burger
Lathyrus latifolius
2019 Cynthia Powell
Lathyrus latifolius
2021 Sherry Adams

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

Layia hieracioides    Hawkweed layia,  Tall layia,  Tall tidytips
native
Annual herb

ASTERACEAE

Layia hieracioides
2020 David Greenberger
Layia hieracioides
2021 R.A. Chasey
Layia hieracioides
2022 R.A. Chasey

Layia platyglossa    Coastal tidytips
native
Annual herb

ASTERACEAE

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

Lemna minor    Smaller duckweed
native
Perennial herb

ARACEAE

Lemna minor
2019 Ron Vanderhoff
Lemna minor
2019 Ron Vanderhoff
Lemna minor
2019 Ron Vanderhoff

Lepechinia calycina    White pitcher sage,  Woodbalm, pitcher sage
native
Shrub

LAMIACEAE

Lepechinia calycina
2020 Janice Kuch
Lepechinia calycina
2021 Ryan Carle
Lepechinia calycina
2023 Mike Russler

Lepidium campestre    Cow cress,  English pepper grass,  Field pepper grass
non-native
Annual, Perennial herb

BRASSICACEAE

Lepidium campestre
2020 Bob Sweatt
Lepidium campestre
2020 Bob Sweatt
Lepidium campestre
2020 Bob Sweatt

Lepidium didymum    Lesser swine cress
non-native
Annual herb

BRASSICACEAE

Lepidium didymum
2022 Shawna Martinez
Lepidium didymum
2023 Ron Vanderhoff
Lepidium didymum
2023 Ron Vanderhoff

Lepidium latifolium    Broad leaved pepper grass,  Broadleaved pepperweed,  Perennial pepperweed
invasive non-native
Perennial herb

BRASSICACEAE

Lepidium latifolium
2022 Donald Burk
Lepidium latifolium
2020 Ron Vanderhoff
Lepidium latifolium
2021 Michelle Karle

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

BRASSICACEAE

Lepidium pinnatifidum
2016 Keir Morse
Lepidium pinnatifidum
1982 Robert E. Preston, Ph.D.
Lepidium pinnatifidum
2010 Zoya Akulova

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

BRASSICACEAE

Lepidium strictum
2022 Ron Vanderhoff
Lepidium strictum
2022 Jim Xerogeanes
Lepidium strictum
2022 Ron Vanderhoff

Leptochloa fusca ssp. fascicularis    Bearded sprangletop
native
Annual grass

POACEAE

Leptochloa fusca ssp. fascicularis
2023 Donald Burk
Leptochloa fusca ssp. fascicularis
2021 R.A. Chasey
Leptochloa fusca ssp. fascicularis
2021 Ken Hickman

Leptochloa fusca ssp. uninervia    Mexican sprangletop
native
Annual grass

POACEAE

Leptochloa fusca ssp. uninervia
2009 Ron Vanderhoff
Leptochloa fusca ssp. uninervia
2012 James M. Andre
Leptochloa fusca ssp. uninervia
2016 Neil Uelman

Leptosiphon androsaceus    False babystars
native
Annual herb

POLEMONIACEAE

Leptosiphon androsaceus
2010 Jeffrey Hapeman
Leptosiphon androsaceus
2020 R.A. Chasey
Leptosiphon androsaceus
2014 James Gonsman

Leptosiphon bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Leptosiphon bicolor
2008 Steve Matson
Leptosiphon bicolor
2008 Steve Matson
Leptosiphon bicolor
2008 Steve Matson

Leptosiphon liniflorus    Narrowflower flaxflower
native
Annual herb

POLEMONIACEAE

Leptosiphon liniflorus
2017 Aaron Echols
Leptosiphon liniflorus
2022 Ron Vanderhoff
Leptosiphon liniflorus
2023 Diana Wahl

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Leptosiphon parviflorus
2008 Keir Morse
Leptosiphon parviflorus
2008 Keir Morse
Leptosiphon parviflorus
2008 Keir Morse

native
Annual herb

POLEMONIACEAE

Leptosiphon pygmaeus ssp. continentalis
2019 Steve Matson
Leptosiphon pygmaeus ssp. continentalis
2019 Steve Matson
Leptosiphon pygmaeus ssp. continentalis
2019 Steve Matson

Lessingia glandulifera var. glandulifera    Sticky lessingia,  Valley lessingia
native
Annual herb

ASTERACEAE

Lessingia glandulifera var. glandulifera
2021 R.A. Chasey
Lessingia glandulifera var. glandulifera
2015 Steve Matson
Lessingia glandulifera var. glandulifera
2021 Mike Russler

Lessingia hololeuca    Woolly headed lessingia,  Woollyhead lessingia
rare native
Annual herb

ASTERACEAE

Lessingia hololeuca
2023 R.A. Chasey
Lessingia hololeuca
2023 R.A. Chasey
Lessingia hololeuca
2020 Ken Hickman

Leucanthemum maximum    Max chrysanthemum,  Shasta daisy
non-native
Annual, Perennial herb

ASTERACEAE

Leucanthemum maximum
2019 Marisa Persaud
Leucanthemum maximum
2019 Marisa Persaud
Leucanthemum maximum
2012 BOB CASE

Leucanthemum vulgare    Oxe eye daisy,  Oxeye daisy
invasive non-native
Perennial herb

ASTERACEAE

Leucanthemum vulgare
2020 Kim Cabrera
Leucanthemum vulgare
2019 Julian Geoghegan
Leucanthemum vulgare
2017 James Gonsman

Ligustrum lucidum    Glossy privet
invasive non-native
Tree, Shrub

OLEACEAE

Ligustrum lucidum
2021 Alex Nikolaou
Ligustrum lucidum
2021 Ron Vanderhoff
Ligustrum lucidum
2017 Ron Vanderhoff

Ligustrum vulgare    European privet
non-native
Tree, Shrub

OLEACEAE

Ligustrum vulgare
2018 Sarah Inman
Ligustrum vulgare
2018 Ryan Diller
Ligustrum vulgare
2012 Dean Taylor

native
Perennial herb

LILIACEAE

Lilium pardalinum ssp. pardalinum
2015 Steve Matson
Lilium pardalinum ssp. pardalinum
2015 Steve Matson
Lilium pardalinum ssp. pardalinum
2015 Steve Matson

Limosella acaulis    Broad leaved mudwort,  Owyhee mudwort,  Southern mudwort
native
Annual herb

SCROPHULARIACEAE

Limosella acaulis
2020 Steve Matson
Limosella acaulis
2020 Steve Matson
Limosella acaulis
2021 R.A. Chasey

Linanthus dichotomus    Evening snow,  Eveningsnow
native
Annual herb

POLEMONIACEAE

Linanthus dichotomus
2019 Jacob Smith
Linanthus dichotomus
2019 Jacob Smith
Linanthus dichotomus
2019 Jacob Smith

Linum bienne    Narrow leaved flax,  Pale flax,  Small flowered flax
non-native
Annual herb

LINACEAE

Linum bienne
2019 Ken Lunders
Linum bienne
2021 Cameron Chabre
Linum bienne
2018 Cynthia Powell

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

Lithophragma heterophyllum    Hill star,  Hillside woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma heterophyllum
2019 David Greenberger
Lithophragma heterophyllum
2019 David Magney
Lithophragma heterophyllum
2018 Ken Lunders

Lobelia erinus    Edging lobelia
non-native
Annual herb

CAMPANULACEAE

Lobelia erinus
2018 David Greenberger
Lobelia erinus
2019 Chasey
Lobelia erinus
2017 James Bailey

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

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Logfia gallica
2017 Barbara Boethling
Logfia gallica
2023 Ron Vanderhoff
Logfia gallica
2023 Ron Vanderhoff

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

APIACEAE

Lomatium caruifolium var. caruifolium
2014 Steve Matson
Lomatium caruifolium var. caruifolium
2022 Dianne Lake
Lomatium caruifolium var. caruifolium
2014 Steve Matson

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

APIACEAE

Lomatium dasycarpum ssp. dasycarpum
2016 Steve Matson
Lomatium dasycarpum ssp. dasycarpum
2016 Steve Matson
Lomatium dasycarpum ssp. dasycarpum
2016 Steve Matson

Lomatium macrocarpum    Bigseed biscuitroot,  Large fruited lomatium
native
Perennial herb

APIACEAE

Lomatium macrocarpum
2018 Gary McDonald
Lomatium macrocarpum
2022 John Rawlings
Lomatium macrocarpum
2013 Gary McDonald

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 hispidula    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera hispidula
2019 Stacie Wolny
Lonicera hispidula
2019 Stacie Wolny
Lonicera hispidula
2021 Bryant Baker

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

FABACEAE

Lotus corniculatus
2005 Steve Matson
Lotus corniculatus
2014 Steve Matson
Lotus corniculatus
2014 Steve Matson

Ludwigia peploides ssp. peploides    Floating primrose willow,  Floating water primrose,  Marsh purslane
native
Perennial herb

ONAGRACEAE

Ludwigia peploides ssp. peploides
2019 Patrick Furtado
Ludwigia peploides ssp. peploides
2022 Donald Burk
Ludwigia peploides ssp. peploides
2022 Donald Burk

Lupinus affinis    Fleshy lupine
native
Annual herb

FABACEAE

Lupinus affinis
2019 Alice Cummings
Lupinus affinis
2023 John Rawlings
Lupinus affinis
1992 Robert E. Preston, Ph.D.

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 latifolius var. latifolius    Broad leaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius var. latifolius
2021 John Rawlings
Lupinus latifolius var. latifolius
2020 Paul Aigner
Lupinus latifolius var. latifolius
2021 Steve Matson

Lupinus luteolus    Butter lupine,  Pale yellow lupine
native
Annual herb

FABACEAE

Lupinus luteolus
2019 Paul Aigner
Lupinus luteolus
2022 J Tunney
Lupinus luteolus
2019 Paul Aigner

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
2016 Steve Matson
Lupinus nanus
2016 Steve Matson
Lupinus nanus
2016 Steve Matson

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

Luzula comosa var. comosa    Hairy wood rush
native
Perennial grasslike herb

JUNCACEAE

Luzula comosa var. comosa
2018 Scot Loring
Luzula comosa var. comosa
2018 Scot Loring
Luzula comosa var. comosa
2018 Scot Loring

non-native
Annual, Perennial herb

SOLANACEAE

Lycopersicon esculentum
2019 Julian Geoghegan
Lycopersicon esculentum
2021 Ron Vanderhoff
Lycopersicon esculentum
2015 John Sayers

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

LYTHRACEAE

Lythrum hyssopifolia
2019 Diane Etchison
Lythrum hyssopifolia
2021 Cynthia Powell
Lythrum hyssopifolia
2020 Ron Vanderhoff

Lythrum tribracteatum    Three bracted loosestrife,  Threebract loosestrife
non-native
Annual herb

LYTHRACEAE

Lythrum tribracteatum
2023 R.A. Chasey
Lythrum tribracteatum
2019 Ramona Robison
Lythrum tribracteatum
2023 R.A. Chasey

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

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

ASTERACEAE

Madia sativa
2013 Ron Vanderhoff
Madia sativa
2021 David Wolfson
Madia sativa
2021 Zoya Akulova-Barlow

Maianthemum racemosum    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum racemosum
2020 Bob Sweatt
Maianthemum racemosum
2018 Steve Matson
Maianthemum racemosum
2019 Cynthia Powell

Maianthemum stellatum    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum stellatum
2021 Cyril Guyot
Maianthemum stellatum
2003 Steve Matson
Maianthemum stellatum
2020 Susan McDougall

Malacothamnus arcuatus var. arcuatus    Western bewildering bushmallow
rare native
Shrub

MALVACEAE

Malacothamnus arcuatus var. arcuatus
2006 Toni Corelli
Malacothamnus arcuatus var. arcuatus
2019 Ken Hickman
Malacothamnus arcuatus var. arcuatus
2006 Toni Corelli

Malva nicaeensis    Bull mallow
non-native
Annual herb

MALVACEAE

Malva nicaeensis
2015 Mike Morales
Malva nicaeensis
2020 Ron Vanderhoff
Malva nicaeensis
2020 Ron Vanderhoff

Marah fabacea    California man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah fabacea
2018 Gary McDonald
Marah fabacea
2018 MCOSD EDRR
Marah fabacea
2021 Cyril Guyot

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

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2008 Steve Matson
Matricaria discoidea
2008 Steve Matson
Matricaria discoidea
2018 Stacie Wolny

Medicago arabica    Spotted burclover,  Spotted medick
non-native
Annual herb

FABACEAE

Medicago arabica
2023 R.A. Chasey
Medicago arabica
2023 R.A. Chasey
Medicago arabica
null

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

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

Medicago sativa    Alfalfa
non-native
Perennial herb

FABACEAE

Medicago sativa
2017 Hayley Ross
Medicago sativa
2020 Bob Sweatt
Medicago sativa
2017 Hayley Ross

Melica californica    California melicgrass
native
Perennial grass

POACEAE

Melica californica
2023 John Rawlings
Melica californica
2021 John Rawlings
Melica californica
2022 John Rawlings

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

Melica subulata    Alaska melic,  Alaska onion grass,  Alaska oniongrass
native
Perennial grass

POACEAE

Melica subulata
2020 Sara Timby
Melica subulata
2023 Teal Derrer
Melica subulata
2022 Ellen Uhler

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 albus    White sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus albus
2021 Ron Vanderhoff
Melilotus albus
2020 Bob Sweatt
Melilotus albus
2022 Ron Vanderhoff

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

Melissa officinalis    Bee balm,  Common balm,  Lemon balm
non-native
Perennial herb

LAMIACEAE

Melissa officinalis
2022 R.A. Chasey
Melissa officinalis
2021 R.A. Chasey
Melissa officinalis
2021 Cara Wilcox

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
2014 James Gonsman
Mentha pulegium
2022 R.A. Chasey
Mentha pulegium
2015 Chris Jaster

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

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

Mentha suaveolens    Apple mint
non-native
Perennial herb

LAMIACEAE

Mentha suaveolens
2018 George Butterworth
Mentha suaveolens
2021 Ron Vanderhoff
Mentha suaveolens
2018 George Butterworth

Mentha xpiperita    Peppermint
non-native
Perennial herb

LAMIACEAE

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

Micranthes californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson

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

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

ASTERACEAE

Microseris douglasii ssp. tenella
2022 Helen Hancock
Microseris douglasii ssp. tenella
2019 Diane Renshaw
Microseris douglasii ssp. tenella
2022 Helen Hancock

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Microsteris gracilis
2003 Steve Matson
Microsteris gracilis
2016 Steve Matson
Microsteris gracilis
2003 Steve Matson

Mimulus aurantiacus var. aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

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

Mimulus cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Mimulus cardinalis
2014 James Gonsman
Mimulus cardinalis
2023 Steve Conger
Mimulus cardinalis
2021 Mike Russler

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 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 douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

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

native
Perennial herb

LAMIACEAE

Monardella villosa ssp. villosa
2021 Ken Lunders
Monardella villosa ssp. villosa
2012 Terrence Gosliner
Monardella villosa ssp. villosa
2015 James Gonsman

Monolopia gracilens    Woodland monolopia
rare native
Annual herb

ASTERACEAE

Monolopia gracilens
2015 Al Keuter
Monolopia gracilens
2023 R.A. Chasey
Monolopia gracilens
2019 Ken Hickman

Montia fontana    Annual water minerslettuce,  Water chickweed,  Water montia
native
Annual herb

MONTIACEAE

Montia fontana
2023 Alaine Arslan
Montia fontana
2023 Alaine Arslan
Montia fontana
2006 Steve Matson

Myosotis latifolia    Broadleaf forget me not,  Forget me not,  Wide leaved forget me not
invasive non-native
Perennial herb

BORAGINACEAE

Myosotis latifolia
2019 Cynthia Powell
Myosotis latifolia
2018 Tim Lewis
Myosotis latifolia
2022 Ecological Concerns Inc

Myosurus minimus    Common mouse tail,  Little mouse tail,  Tiny mousetail
native
Annual herb

RANUNCULACEAE

Myosurus minimus
2022 Dianne Lake
Myosurus minimus
2024 Cynthia Powell
Myosurus minimus
2024 Kevin Dixon

Myriophyllum aquaticum    Parrot feather watermilfoil,  Parrot's feather,  Parrotfeather
invasive non-native
Perennial herb (aquatic)

HALORAGACEAE

Myriophyllum aquaticum
2018 Sarah Inman
Myriophyllum aquaticum
2016 Ross Hinderer
Myriophyllum aquaticum
2019 Patrick Furtado

Myrtus communis    Myrtle
non-native
Shrub

MYRTACEAE

Myrtus communis
2023 Ramona Robison
Myrtus communis
2022 Leah Lord
Myrtus communis
2022 Dianne Dollente

non-native
Perennial herb (bulb)

AMARYLLIDACEAE

Narcissus pseudonarcissus
2019 Colleen Herr
Narcissus pseudonarcissus
2019 Tomas Zavala
Narcissus pseudonarcissus
2020 Diana Wahl

Narcissus tazetta    Cream narcissus
non-native
Perennial herb (bulb)

AMARYLLIDACEAE

Narcissus tazetta
2016 Ron Vanderhoff
Narcissus tazetta
2022 Ramona Robison
Narcissus tazetta
2020 Diana Wahl

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

Nasturtium officinale
2019 Patrick Furtado
Nasturtium officinale
2019 Diane Etchison
Nasturtium officinale
2012 Steve Matson

Navarretia heterodoxa    Calistoga navarretia,  Calistoga pincushionplant
native
Annual herb

POLEMONIACEAE

Navarretia heterodoxa
2018 Stacie Wolny
Navarretia heterodoxa
2021 Larry Dizmang
Navarretia heterodoxa
2021 Larry Dizmang

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

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

Navarretia viscidula    Sticky navarretia,  Sticky pincushionplant
native
Annual herb

POLEMONIACEAE

Navarretia viscidula
2021 R.A. Chasey
Navarretia viscidula
2015 John Doyen
Navarretia viscidula
2015 John Doyen

Nemophila heterophylla    Canyon nemophila,  Small baby blue eyes,  Variable leaved nemophila
native
Annual herb

HYDROPHYLLACEAE

Nemophila heterophylla
2006 Steve Matson
Nemophila heterophylla
2005 Steve Matson
Nemophila heterophylla
2005 Steve Matson

native
Annual herb

HYDROPHYLLACEAE

Nemophila menziesii var. menziesii
2021 Steve Matson
Nemophila menziesii var. menziesii
2021 Steve Matson
Nemophila menziesii var. menziesii
2005 Steve Matson

Nemophila parviflora var. parviflora    Small flowered nemophila,  Smallflower nemophila,  Woodland nemophila
native
Annual herb

HYDROPHYLLACEAE

Nemophila parviflora var. parviflora
2019 John Rawlings
Nemophila parviflora var. parviflora
2021 Zoya Akulova-Barlow
Nemophila parviflora var. parviflora
2023 Dana York

Nerium oleander    Oleander
invasive non-native
Tree

APOCYNACEAE

Nerium oleander
2019 Celeste Dodge
Nerium oleander
2022 Ron Vanderhoff
Nerium oleander
2018 Ron Vanderhoff

Nicotiana acuminata var. multiflora    Many flowered tobacco,  Manyflower tobacco,  Tobacco
non-native
Annual herb

SOLANACEAE

Nicotiana acuminata var. multiflora
2023 Mike Russler
Nicotiana acuminata var. multiflora
2019 Michelle Karle
Nicotiana acuminata var. multiflora
2023 R.A. Chasey

native
Tree, Shrub

FAGACEAE

Notholithocarpus densiflorus var. densiflorus
2020 R.A. Chasey
Notholithocarpus densiflorus var. densiflorus
2022 David popp
Notholithocarpus densiflorus var. densiflorus
2020 Susan McDougall

Nuttallanthus texanus    Blue toadflax
native
Annual, Perennial herb

PLANTAGINACEAE

Nuttallanthus texanus
2017 Steve Matson
Nuttallanthus texanus
2017 Steve Matson
Nuttallanthus texanus
2017 Steve Matson

Oemleria cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

Oemleria cerasiformis
2019 Margo Bors
Oemleria cerasiformis
2019 Stacie Wolny
Oemleria cerasiformis
2023 David Wolfson

Oenanthe sarmentosa    Pacific oenanthe,  Water parsley
native
Perennial herb

APIACEAE

Oenanthe sarmentosa
2021 Don Hollander
Oenanthe sarmentosa
2021 Ron Vanderhoff
Oenanthe sarmentosa
2021 Rosaleen

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

ONAGRACEAE

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

Olea europaea    Olive
invasive non-native
Tree, Shrub

OLEACEAE

Olea europaea
2022 Donald Burk
Olea europaea
2021 Thomas Reyes
Olea europaea
2022 Ron Vanderhoff

Orobanche bulbosa    Chaparral broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche bulbosa
2022 Hunter Breck
Orobanche bulbosa
2019 David Greenberger
Orobanche bulbosa
2022 R.A. Chasey

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

Orobanche uniflora    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora
2022 Helen Hancock
Orobanche uniflora
2023 Katie O'Hara-Kelly
Orobanche uniflora
2022 Christopher Collier

Orobanche vallicola    Valley broom rape
native
Annual herb

OROBANCHACEAE

Orobanche vallicola
2021 Jennifer Mo
Orobanche vallicola
2017 Jennifer Poore
Orobanche vallicola
2012 Rachel Brownsey

Osmorhiza berteroi    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza berteroi
2006 Steve Matson
Osmorhiza berteroi
2006 Steve Matson
Osmorhiza berteroi
2006 Steve Matson

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 micrantha    Dwarf woodsorrel
non-native
Annual herb

OXALIDACEAE

Oxalis micrantha
2005 Steve Matson
Oxalis micrantha
2005 Steve Matson
Oxalis micrantha
2005 Steve Matson

Oxalis oregana    Redwood sorrel
native
Perennial herb

OXALIDACEAE

Oxalis oregana
2021 Caitlyn Allchin
Oxalis oregana
2021 Steve Matson
Oxalis oregana
2021 Steve Matson

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

Panicum capillare    Old witch grass,  Witchgrass
native
Annual grass

POACEAE

Panicum capillare
2022 Ron Vanderhoff
Panicum capillare
2022 Ron Vanderhoff
Panicum capillare
2022 Ron Vanderhoff

Panicum miliaceum ssp. miliaceum    Broomcorn millet
non-native
Annual grass

POACEAE

Panicum miliaceum ssp. miliaceum
© 2015 Nicholas Stevenson NPS
Panicum miliaceum ssp. miliaceum
2015 Nicholas Stevenson NPS

Parentucellia viscosa    Yellow glandweed,  Yellow parentucellia
invasive non-native
Annual herb

OROBANCHACEAE

Parentucellia viscosa
2021 Janice Kuch
Parentucellia viscosa
2022 Donald Burk
Parentucellia viscosa
2017 Eric Wrubel

Paspalum dilatatum    Dallis grass,  Dallisgrass
non-native
Perennial grass

POACEAE

Paspalum dilatatum
2018 Ron Vanderhoff
Paspalum dilatatum
2017 Barbara Boethling
Paspalum dilatatum
2021 Ron Vanderhoff

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

Pedicularis densiflora    Warrior's plume,  Indian warrior
native
Perennial herb

OROBANCHACEAE

Pedicularis densiflora
2015 Dee Warenycia
Pedicularis densiflora
2019 Jason Mills
Pedicularis densiflora
2017 Joshua Borkowski

Pellaea andromedifolia    Coffee cliffbrake,  Coffee fern
native
Fern

PTERIDACEAE

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

Pellaea mucronata var. mucronata    Bird's foot fern
native
Fern

PTERIDACEAE

Pellaea mucronata var. mucronata
2018 Rachelle Gray
Pellaea mucronata var. mucronata
2023 Helen Hancock
Pellaea mucronata var. mucronata
2023 Helen Hancock

Pentachaeta alsinoides    Tiny pygmy daisy,  Tiny pygmydaisy
native
Annual herb

ASTERACEAE

Pentachaeta alsinoides
2021 Ken Hickman
Pentachaeta alsinoides
2022 Ken Hickman
Pentachaeta alsinoides
2023 David Gowen

native
Fern

PTERIDACEAE

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

Perideridia kelloggii    Kellogg's yampah,  Yampah
native
Perennial herb

APIACEAE

Perideridia kelloggii
2022 Suzanne L. Weakley
Perideridia kelloggii
2023 Ryan O'Dell
Perideridia kelloggii
2022 R.A. Chasey

Persicaria amphibia    Water smartweed
native
Perennial herb (aquatic)

POLYGONACEAE

Persicaria amphibia
2017 Ron Vanderhoff
Persicaria amphibia
2017 Ron Vanderhoff
Persicaria amphibia
2019 Diane Etchison

Persicaria lapathifolia    Common knotweed
native
Annual herb

POLYGONACEAE

Persicaria lapathifolia
2016 Barbara Boethling
Persicaria lapathifolia
2017 Ron Vanderhoff
Persicaria lapathifolia
2020 Ron Vanderhoff

Persicaria maculosa    Spotted ladysthumb
non-native
Annual herb

POLYGONACEAE

Persicaria maculosa
2020 R.A. Chasey
Persicaria maculosa
2021 joaquin hale
Persicaria maculosa
2021 joaquin hale

Persicaria punctata    Dotted smartweed
native
Perennial herb

POLYGONACEAE

Persicaria punctata
2018 Ron Vanderhoff
Persicaria punctata
2018 Ron Vanderhoff
Persicaria punctata
2022 Helen Hancock

Petasites frigidus var. palmatus    Arctic sweet coltsfoot,  Western coltsfoot
native
Perennial herb

ASTERACEAE

Petasites frigidus var. palmatus
2016 Steve Matson
Petasites frigidus var. palmatus
2016 Steve Matson
Petasites frigidus var. palmatus
2019 Steve Conger

Petunia parviflora    Wild petunia
native
Annual herb

SOLANACEAE

Petunia parviflora
2017 Ron Vanderhoff
Petunia parviflora
2020 Ron Vanderhoff
Petunia parviflora
2022 Ron Vanderhoff

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 imbricata ssp. imbricata    Imbricate Phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia imbricata ssp. imbricata
2019 Steve Matson
Phacelia imbricata ssp. imbricata
2019 Steve Matson
Phacelia imbricata ssp. imbricata
2019 Steve Matson

Phacelia nemoralis ssp. nemoralis    Woods phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia nemoralis ssp. nemoralis
2020 Ken Hickman
Phacelia nemoralis ssp. nemoralis
2016 Glen Schneider
Phacelia nemoralis ssp. nemoralis
2021 Dianne Lake

Phacelia rattanii    Rattan's phacelia
native
Annual herb

HYDROPHYLLACEAE

Phacelia rattanii
2022 Dee Shea Himes
Phacelia rattanii
2022 Dee Shea Himes
Phacelia rattanii
2020 Ken Hickman

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

POACEAE

Phalaris aquatica
2018 Thomas Reyes
Phalaris aquatica
2021 Lenihan Mazur
Phalaris aquatica
2022 Lenihan Mazur

Phalaris brachystachys    Short spike canarygrass,  Shortspike canarygrass
non-native
Annual grass

POACEAE

Phalaris brachystachys
2023 John Rawlings
Phalaris brachystachys
2023 John Rawlings
Phalaris brachystachys
2007 Luigi Rignanese

Phalaris californica    California canarygrass,  Canarygrass
native
Perennial grass

POACEAE

Phalaris californica
2021 Dan Quinn
Phalaris californica
2017 Toni Corelli
Phalaris californica
2018 Brian Charles

Phalaris lemmonii    Lemmon's canarygrass
native
Annual grass

POACEAE

Phalaris lemmonii
2017 James Bailey
Phalaris lemmonii
2022 Donald Burk
Phalaris lemmonii
2022 Steve Matson

Phalaris paradoxa    Hood canarygrass
non-native
Annual grass

POACEAE

Phalaris paradoxa
2021 David popp
Phalaris paradoxa
2021 John Rawlings
Phalaris paradoxa
2017 James Bailey

Phleum pratense    Common timothy,  Cultivated timothy,  Timothy
non-native
Perennial grass

POACEAE

Phleum pratense
2013 BOB CASE
Phleum pratense
2008 Keir Morse
Phleum pratense
2005 Louis-M. Landry

Pholistoma auritum var. auritum    Blue fiesta flower,  Blue fiestaflower,  Fiesta flower
native
Annual herb

HYDROPHYLLACEAE

Pholistoma auritum var. auritum
2014 Steve Matson
Pholistoma auritum var. auritum
2014 Steve Matson
Pholistoma auritum var. auritum
2014 Steve Matson

native
Shrub (parasitic)

VISCACEAE

Phoradendron serotinum ssp. tomentosum
2022 David popp
Phoradendron serotinum ssp. tomentosum
2020 R.A. Chasey
Phoradendron serotinum ssp. tomentosum
2021 R.A. Chasey

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

VERBENACEAE

Phyla nodiflora
2018 Ron Vanderhoff
Phyla nodiflora
2009 Ron Vanderhoff
Phyla nodiflora
2022 Donald Burk

Physalis philadelphica    Mexican groundcherry,  Tomatillo
non-native
Annual herb

SOLANACEAE

Physalis philadelphica
2020 Alice Cummings
Physalis philadelphica
2022 Donald Burk
Physalis philadelphica
2020 Alice Cummings

Physocarpus capitatus    Ninebark,  Pacific ninebark,  Western ninebark
native
Shrub

ROSACEAE

Physocarpus capitatus
2020 Helen Hancock
Physocarpus capitatus
2018 Julian Geoghegan
Physocarpus capitatus
2019 Julie Kierstead Nelson

Pickeringia montana var. montana    Montana chaparral pea
native
Shrub

FABACEAE

Pickeringia montana var. montana
2022 Ron Vanderhoff
Pickeringia montana var. montana
2022 Ron Vanderhoff
Pickeringia montana var. montana
2022 Ron Vanderhoff

Pinus radiata    Monterey pine
native
Tree

PINACEAE

Pinus radiata
2011 Toni Corelli
Pinus radiata
2012 Michael Mitchell
Pinus radiata
2012 Michael Mitchell

Pinus sylvestris    Scotch pine
non-native
Tree

PINACEAE

Pinus sylvestris
2007 Louis-M. Landry
Pinus sylvestris
Nick Kurzenko
Pinus sylvestris
2005 Louis-M. Landry

Piperia elegans ssp. elegans    Elegant piperia
native
Perennial herb

ORCHIDACEAE

Piperia elegans ssp. elegans
2018 Saskia Raether
Piperia elegans ssp. elegans
2022 Cynthia Powell
Piperia elegans ssp. elegans
2017 Nicole Mercier

Piperia michaelii    Michael's piperia,  Michael's rein orchid
rare native
Perennial herb

ORCHIDACEAE

Piperia michaelii
2019 stephen rosenthal
Piperia michaelii
2023 John Rawlings
Piperia michaelii
2020 Ken Hickman

Piperia transversa    Mountain piperia,  Royal rein orchid,  Flat Spurred Piperia
native
Perennial herb

ORCHIDACEAE

Piperia transversa
2015 Steve Matson
Piperia transversa
2015 Steve Matson
Piperia transversa
2005 Keir Morse

Pistacia atlantica    Mt. atlas mastic tree,  Pistachio
invasive non-native
Tree

ANACARDIACEAE

Pistacia atlantica
2020 Sara Sweet
Pistacia atlantica
2018 Angelique Herman
Pistacia atlantica
2020 Sara Sweet

Pisum sativum    Garden pea
non-native
Annual herb

FABACEAE

Pisum sativum
2015 Barry Breckling
Pisum sativum
2008 Louis-M. Landry
Pisum sativum
2011 Louis-M. Landry

Plagiobothrys bracteatus    Bracted allocarya,  Bracted popcorn flower,  Bracted popcornflower
native
Annual herb

BORAGINACEAE

Plagiobothrys bracteatus
2023 R.A. Chasey
Plagiobothrys bracteatus
2023 R.A. Chasey
Plagiobothrys bracteatus
2023 R.A. Chasey

Plagiobothrys chorisianus var. hickmanii    Hickman's popcorn flower,  Hickman's popcornflower
rare native
Annual herb

BORAGINACEAE

Plagiobothrys chorisianus var. hickmanii
2022 Steven Mills Glascock
Plagiobothrys chorisianus var. hickmanii
2023 Ellen Uhler
Plagiobothrys chorisianus var. hickmanii
2022 Irene Rosen

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

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 coronopus    Buckhorn plantain,  Cut leaf plantain
invasive non-native
Annual herb

PLANTAGINACEAE

Plantago coronopus
2022 R.A. Chasey
Plantago coronopus
2021 Zoya Akulova-Barlow
Plantago coronopus
2017 MCOSD Restoration Crew

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

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

PLANTAGINACEAE

Plantago lanceolata
2017 Gary McDonald
Plantago lanceolata
2019 Joe Engelbrecht
Plantago lanceolata
2021 Ken Lunders

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
2019 Bob Sweatt
Plantago major
2022 Diana Wahl
Plantago major
2020 Ryan Carle

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

Plectritis congesta ssp. brachystemon    Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta ssp. brachystemon
2023 Catherine Chang
Plectritis congesta ssp. brachystemon
2005 Steve Matson
Plectritis congesta ssp. brachystemon
2018 Gail Johnson

Plectritis macrocera    Long horn plectritis,  Longhorn plectritis,  White plectritis
native
Annual herb

VALERIANACEAE

Plectritis macrocera
2019 Gary McDonald
Plectritis macrocera
2020 Bob Sweatt
Plectritis macrocera
2020 Susan McDougall

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

POACEAE

Pleuropogon californicus var. californicus
2023 Denise Defreese
Pleuropogon californicus var. californicus
2021 Denise Defreese
Pleuropogon californicus var. californicus
2021 R.A. Chasey

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 howellii    Howell's blue grass,  Howell's bluegrass
native
Annual grass

POACEAE

Poa howellii
2018 Ken Hickman
Poa howellii
2020 Ken Hickman
Poa howellii
2020 Ken Hickman

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

POACEAE

Poa pratensis ssp. pratensis
2021 John Rawlings
Poa pratensis ssp. pratensis
2020 Diana Wahl
Poa pratensis ssp. pratensis
1998 Dean Wm. Taylor (Poa pratensis ssp. agassizensis)

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

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

CARYOPHYLLACEAE

Polycarpon depressum
2023 James Bailey
Polycarpon depressum
2023 James Bailey
Polycarpon depressum
2011 Neal Kramer

Polygala californica    California Milkwort
native
Perennial herb

POLYGALACEAE

Polygala californica
2020 Janice Kuch
Polygala californica
2021 Larry Dizmang
Polygala californica
2020 David Wolfson

Polygonum aviculare ssp. depressum    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare ssp. depressum
2016 Barbara Boethling
Polygonum aviculare ssp. depressum
2021 Ron Vanderhoff
Polygonum aviculare ssp. depressum
2014 Richard Chasey

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

POACEAE

Polypogon interruptus
2022 John Rawlings
Polypogon interruptus
2022 John Rawlings
Polypogon interruptus
2020 Ron Vanderhoff

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

Polypogon viridis    Water beard grass
non-native
Perennial grass

POACEAE

Polypogon viridis
2022 Ron Vanderhoff
Polypogon viridis
2021 Ron Vanderhoff
Polypogon viridis
2019 Friends of Five Creeks volunteers

Polystichum dudleyi    Dudley's sword fern,  Dudley's swordfern
native
Fern

DRYOPTERIDACEAE

Polystichum dudleyi
2021 John Rawlings
Polystichum dudleyi
2019 Joerg Lohse
Polystichum dudleyi
2023 R.A. Chasey

Polystichum munitum    Western sword fern,  Western swordfern
native
Fern

DRYOPTERIDACEAE

Polystichum munitum
2021 Julie A. Kierstead
Polystichum munitum
2022 Jerry Murray
Polystichum munitum
2011 Toni Corelli

Populus trichocarpa    Black cottonwood
native
Tree

SALICACEAE

Populus trichocarpa
2019 Ron Vanderhoff
Populus trichocarpa
2012 Steve Matson
Populus trichocarpa
2012 Steve Matson

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

PORTULACACEAE

Portulaca oleracea
2022 Donald Burk
Portulaca oleracea
2022 Ron Vanderhoff
Portulaca oleracea
2020 R.A. Chasey

Potamogeton crispus    Crispate leaved pondweed,  Curly pondweed,  Cut leaved pondweed
invasive non-native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton crispus
2021 Ron Vanderhoff
Potamogeton crispus
2021 Ron Vanderhoff
Potamogeton crispus
2021 Ron Vanderhoff

native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff
Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff
Potamogeton foliosus ssp. foliosus
2020 Ron Vanderhoff

Potamogeton illinoensis    Illinois pondweed,  Pondweed,  Shining pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton illinoensis
2014 Robert L. Carr
Potamogeton illinoensis
2014 Robert L. Carr
Potamogeton illinoensis
2014 Robert L. Carr

Potamogeton pusillus    Small pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potamogeton pusillus
2007 Neal Kramer
Potamogeton pusillus
2013 Jake Ruygt

Prosartes hookeri    Drops of gold
native
Perennial herb

LILIACEAE

Prosartes hookeri
2021 Norma Solarz
Prosartes hookeri
2021 Cara Wilcox
Prosartes hookeri
2019 Stacie Wolny

Prunella vulgaris var. lanceolata    Lance leaf self heal,  Mountain selfheal
native
Perennial herb

LAMIACEAE

Prunella vulgaris var. lanceolata
2003 Steve Matson
Prunella vulgaris var. lanceolata
2022 Zoya Akulova-Barlow
Prunella vulgaris var. lanceolata
2022 Zoya Akulova-Barlow

Prunus emarginata    Bitter cherry
native
Tree, Shrub

ROSACEAE

Prunus emarginata
2020 Belinda Lo
Prunus emarginata
2004 Steve Matson
Prunus emarginata
2006 Steve Matson

Prunus ilicifolia ssp. ilicifolia    Holly leaf cherry,  Hollyleaf cherry
native
Tree, Shrub

ROSACEAE

Prunus ilicifolia ssp. ilicifolia
2018 David Greenberger
Prunus ilicifolia ssp. ilicifolia
2019 Ron Vanderhoff
Prunus ilicifolia ssp. ilicifolia
2020 James Gonsman

Prunus subcordata    Klamath plum,  Sierra plum
native
Tree, Shrub

ROSACEAE

Prunus subcordata
2020 David Greenberger
Prunus subcordata
Kevin Hintsa
Prunus subcordata
2020 David Greenberger

Prunus virginiana var. demissa    Chokecherry,  Western choke cherry,  Western chokecherry
native
Tree, Shrub

ROSACEAE

Prunus virginiana var. demissa
2020 Bryant Baker
Prunus virginiana var. demissa
2020 Susan McDougall
Prunus virginiana var. demissa
2020 Susan McDougall

native
Perennial herb

ASTERACEAE

Pseudognaphalium beneolens
2021 BLM Redding Field Office
Pseudognaphalium beneolens
2021 Mike Russler
Pseudognaphalium beneolens
2021 R.A. Chasey

Pseudognaphalium californicum    Ladies' tobacco
native
Annual, Perennial herb

ASTERACEAE

Pseudognaphalium californicum
2019 Gary McDonald
Pseudognaphalium californicum
2020 Steven M Norris
Pseudognaphalium californicum
2021 Ron Vanderhoff

Pseudognaphalium luteoalbum    Jersey cudweed
non-native
Annual herb

ASTERACEAE

Pseudognaphalium luteoalbum
2021 Ron Vanderhoff
Pseudognaphalium luteoalbum
2019 Diane Etchison
Pseudognaphalium luteoalbum
2021 Ron Vanderhoff

Pseudognaphalium ramosissimum    Pink cudweed
native
Annual, Biennial herb

ASTERACEAE

Pseudognaphalium ramosissimum
2021 R.A. Chasey
Pseudognaphalium ramosissimum
2021 R.A. Chasey
Pseudognaphalium ramosissimum
2017 Gary McDonald

Pseudognaphalium stramineum    Cottonbatting plant
native
Perennial herb

ASTERACEAE

Pseudognaphalium stramineum
2017 Gary McDonald
Pseudognaphalium stramineum
2017 Gary McDonald
Pseudognaphalium stramineum
2017 Gary McDonald

Pseudotsuga menziesii var. menziesii    Douglas fir,  Douglas spruce,  False hemlock
native
Tree

PINACEAE

Pseudotsuga menziesii var. menziesii
2020 David Krause
Pseudotsuga menziesii var. menziesii
2022 David popp
Pseudotsuga menziesii var. menziesii
2024 David popp

Psilocarphus tenellus    Slender woolly marbles,  Slender woollyheads
native
Annual herb

ASTERACEAE

Psilocarphus tenellus
2006 Steve Matson
Psilocarphus tenellus
2006 Steve Matson
Psilocarphus tenellus
2018 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

Pyracantha fortuneana    Chinese firethorn
non-native
Shrub

ROSACEAE

Pyracantha fortuneana
2021 Fred Watson
Pyracantha fortuneana
2018 Ron Vanderhoff
Pyracantha fortuneana
2023 Ron Vanderhoff

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 berberidifolia    Inland scrub oak
native
Tree

FAGACEAE

Quercus berberidifolia
2022 David Strauch
Quercus berberidifolia
2020 Cynthia Keiser
Quercus berberidifolia
2020 Cynthia Keiser

Quercus chrysolepis    Canyon live oak,  Canyon oak, maul oak, goldcup oak,  Gold cup oak
native
Tree

FAGACEAE

Quercus chrysolepis
2017 Aaron Sunshine
Quercus chrysolepis
2020 R.A. Chasey
Quercus chrysolepis
2018 joaquin hale

Quercus douglasii    Blue oak
native
Tree

FAGACEAE

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

Quercus durata var. durata    Leather oak
native
Shrub

FAGACEAE

Quercus durata var. durata
2022 Hunter Breck
Quercus durata var. durata
2020 Charles Russell
Quercus durata var. durata
2020 R.A. Chasey

Quercus kelloggii    Black oak,  California black oak
native
Tree

FAGACEAE

Quercus kelloggii
2020 Kim Cabrera
Quercus kelloggii
2021 Emily Sluiman
Quercus kelloggii
2023 Ryan O'Dell

Quercus lobata    California white oak,  Valley oak
native
Tree

FAGACEAE

Quercus lobata
2018 stephen rosenthal
Quercus lobata
2021 Cynthia Powell
Quercus lobata
2020 Charles Russell

Quercus wislizeni var. frutescens    Bush interior live oak,  Chaparral oak,  Live oak
native
Tree, Shrub

FAGACEAE

Quercus wislizeni var. frutescens
2019 Ron Vanderhoff
Quercus wislizeni var. frutescens
2019 Ron Vanderhoff
Quercus wislizeni var. frutescens
2021 Ron Vanderhoff

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

Ranunculus californicus    California buttercup
native
Perennial herb

RANUNCULACEAE

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

Ranunculus hebecarpus    Delicate buttercup,  Pubescent fruited buttercup,  Slender annual buttercup
native
Annual herb

RANUNCULACEAE

Ranunculus hebecarpus
2019 Ron Vanderhoff
Ranunculus hebecarpus
2021 Ron Vanderhoff
Ranunculus hebecarpus
2019 Ron Vanderhoff

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

RANUNCULACEAE

Ranunculus muricatus
2023 R.A. Chasey
Ranunculus muricatus
2023 Alaine Arslan
Ranunculus muricatus
2009 Julie A. Kierstead

Ranunculus uncinatus    Hook seeded buttercup,  Hooked fruit buttercup,  Woodland buttercup
native
Annual, Perennial herb

RANUNCULACEAE

Ranunculus uncinatus
2019 Ken Hickman
Ranunculus uncinatus
2019 Ken Hickman
Ranunculus uncinatus
2017 James Gonsman

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 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

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

Ribes californicum var. californicum    California gooseberry,  Hillside gooseberry
native
Shrub

GROSSULARIACEAE

Ribes californicum var. californicum
2019 Matt Berger
Ribes californicum var. californicum
2018 Gary McDonald
Ribes californicum var. californicum
2019 Adam Chasey

Ribes divaricatum var. pubiflorum    Spreading gooseberry,  Straggly gooseberry
native
Shrub

GROSSULARIACEAE

Ribes divaricatum var. pubiflorum
2021 Ken-ichi Ueda
Ribes divaricatum var. pubiflorum
2021 Ken-ichi Ueda
Ribes divaricatum var. pubiflorum
2021 Ken-ichi Ueda

Ribes malvaceum var. malvaceum    Chaparral currant
native
Shrub

GROSSULARIACEAE

Ribes malvaceum var. malvaceum
2023 R.A. Chasey
Ribes malvaceum var. malvaceum
2020 Ron Vanderhoff
Ribes malvaceum var. malvaceum
2023 R.A. Chasey

Ribes menziesii var. menziesii    Canyon gooseberry
native
Shrub

GROSSULARIACEAE

Ribes menziesii var. menziesii
2018 Rebecca Schoenenberger
Ribes menziesii var. menziesii
2019 Michael Mitchell
Ribes menziesii var. menziesii
2020 Susan McDougall

Ribes sanguineum var. glutinosum    Blood currant,  Flowering currant,  Pink flowering currant
native
Shrub

GROSSULARIACEAE

Ribes sanguineum var. glutinosum
2020 Talila Golan
Ribes sanguineum var. glutinosum
2018 John Rusk
Ribes sanguineum var. glutinosum
2018 Hunter Breck

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

Robinia pseudoacacia    Black locust
invasive non-native
Tree

FABACEAE

Robinia pseudoacacia
2021 Ron Vanderhoff
Robinia pseudoacacia
2021 David Wolfson
Robinia pseudoacacia
2015 Ron Vanderhoff

Rorippa curvisiliqua    Curvepod yellow cress,  Curvepod yellowcress,  Western yellow cress
native
Annual, Perennial herb

BRASSICACEAE

Rorippa curvisiliqua
2020 Ron Vanderhoff
Rorippa curvisiliqua
2023 Ron Vanderhoff
Rorippa curvisiliqua
2023 Ron Vanderhoff

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

BRASSICACEAE

Rorippa palustris ssp. palustris
2017 Ron Vanderhoff
Rorippa palustris ssp. palustris
2017 Ron Vanderhoff
Rorippa palustris ssp. palustris
2018 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

native
Shrub

ROSACEAE

Rosa gymnocarpa var. gymnocarpa
2019 James Gonsman
Rosa gymnocarpa var. gymnocarpa
2020 David Krause
Rosa gymnocarpa var. gymnocarpa
2017 Steve Matson

Rosa spithamea    Ground rose,  Sonoma rose
native
Shrub

ROSACEAE

Rosa spithamea
2021 David Gowen
Rosa spithamea
1973 Geoff Burleigh
Rosa spithamea
2020 David Krause

Rosmarinus officinalis    Rosemary
non-native
Shrub

LAMIACEAE

Rosmarinus officinalis
2022 Barbara deGery
Rosmarinus officinalis
2022 Andy Ford
Rosmarinus officinalis
2015 Chris Jaster

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

Rubus parviflorus    Western thimbleberry,  Thimbleberry
native
Vine, Shrub

ROSACEAE

Rubus parviflorus
2022 Zoya Akulova-Barlow
Rubus parviflorus
2020 Mary Sue Ittner
Rubus parviflorus
2019 Patrick Furtado

Rubus ursinus    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus ursinus
2018 Ken Lunders
Rubus ursinus
2019 Ron Vanderhoff
Rubus ursinus
2015 Kelli Kallenborn

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella
2017 Gary McDonald
Rumex acetosella
2008 Steve Matson
Rumex acetosella
2019 Patrick Furtado

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

Rumex salicifolius    Willow dock,  Willow leaved dock
native
Perennial herb

POLYGONACEAE

Rumex salicifolius
2023 Ron Vanderhoff
Rumex salicifolius
2012 Gary McDonald
Rumex salicifolius
2012 Gary McDonald

Rupertia physodes    California tea,  Common rupertia,  Forest scurfpea
native
Perennial herb

FABACEAE

Rupertia physodes
2023 R.A. Chasey
Rupertia physodes
2023 Steve Conger
Rupertia physodes
2020 R.A. Chasey

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

Sagina decumbens ssp. occidentalis    Western pearlwort
native
Annual herb

CARYOPHYLLACEAE

Sagina decumbens ssp. occidentalis
2019 Ron Vanderhoff
Sagina decumbens ssp. occidentalis
2019 Ron Vanderhoff
Sagina decumbens ssp. occidentalis
2019 Ron Vanderhoff

Salix exigua var. hindsiana    Sandbar willow
native
Tree, Shrub

SALICACEAE

Salix exigua var. hindsiana
2022 Robbie Lee
Salix exigua var. hindsiana
2017 Dee Shea Himes
Salix exigua var. hindsiana
02/22/2022 John Rawlings

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 lasiandra var. lasiandra    Pacific willow
native
Tree

SALICACEAE

Salix lasiandra var. lasiandra
2021 Alice Cummings
Salix lasiandra var. lasiandra
2021 Diane Renshaw
Salix lasiandra var. lasiandra
2021 Ken Hickman

Salix lasiolepis    Arroyo willow
native
Tree, Shrub

SALICACEAE

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

Salvia columbariae    Chia sage
native
Annual herb

LAMIACEAE

Salvia columbariae
2020 Ron Vanderhoff
Salvia columbariae
2022 Mike Russler
Salvia columbariae
2022 Mike Russler

Sambucus nigra ssp. caerulea    Blue elderberry
native
Tree, Shrub

VIBURNACEAE

Sambucus nigra ssp. caerulea
2021 Mike Russler
Sambucus nigra ssp. caerulea
2020 Diane Etchison
Sambucus nigra ssp. caerulea
2022 El Byrne

Sanicula bipinnata    Poison sanicle
native
Perennial herb

APIACEAE

Sanicula bipinnata
2008 Steve Matson
Sanicula bipinnata
2023 R.A. Chasey
Sanicula bipinnata
2022 R.A. Chasey

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 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

Sanicula laciniata    Coast sanicle,  Coastal blacksnakeroot
native
Perennial herb

APIACEAE

Sanicula laciniata
2022 Diane Renshaw
Sanicula laciniata
2022 R.A. Chasey
Sanicula laciniata
2018 Ken Hickman

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

Santolina chamaecyparissus    Lavender cotton
non-native
Shrub

ASTERACEAE

Santolina chamaecyparissus
2012 Richard Spellenberg
Santolina chamaecyparissus
2012 Richard Spellenberg
Santolina chamaecyparissus
2006 Luigi Rignanese

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

APIACEAE

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

native
Perennial grasslike herb

CYPERACEAE

Schoenoplectus acutus var. occidentalis
2019 Steve Matson
Schoenoplectus acutus var. occidentalis
2019 Steve Matson
Schoenoplectus acutus var. occidentalis
2019 Steve Matson

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

CYPERACEAE

Scirpus microcarpus
2022 Doug Allshouse
Scirpus microcarpus
2008 Steve Matson
Scirpus microcarpus
2013 Ron Vanderhoff

Scoliopus bigelovii    California fetid adderstongue,  Fetid adder's tongue,  Slink pod
native
Perennial herb

LILIACEAE

Scoliopus bigelovii
2024 William Blaker
Scoliopus bigelovii
2020 Timothy Boomer
Scoliopus bigelovii
2023 Mary Ann Machi

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

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

Sedum spathulifolium    Broadleaf stonecrop,  Pacific stonecrop,  Stone crop
native
Perennial herb

CRASSULACEAE

Sedum spathulifolium
2021 Steve Matson
Sedum spathulifolium
2021 Steve Matson
Sedum spathulifolium
2023 R.A. Chasey

Senecio aronicoides    California butterweed,  California groundsel,  California rayless butterweed
native
Perennial herb

ASTERACEAE

Senecio aronicoides
2020 Helen Hancock
Senecio aronicoides
2008 Steve Matson
Senecio aronicoides
2020 Julie A. Kierstead

Senecio minimus    Coastal burnweed
non-native
Annual, Perennial herb

ASTERACEAE

Senecio minimus
2012 Michael Mitchell
Senecio minimus
2012 Michael Mitchell
Senecio minimus
2012 Michael Mitchell

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

Sequoia sempervirens    Coast redwood
native
Tree

CUPRESSACEAE

Sequoia sempervirens
2019 Patrick Furtado
Sequoia sempervirens
2022 David Strauch
Sequoia sempervirens
2019 R.A. Chasey

Setaria viridis    Green bristlegrass,  Green foxtail
non-native
Annual grass

POACEAE

Setaria viridis
2017 Ron Vanderhoff
Setaria viridis
2012 Zoya Akulova-Barlow
Setaria viridis
2021 David popp

Sherardia arvensis    Blue fieldmadder,  Field madder
non-native
Annual herb

RUBIACEAE

Sherardia arvensis
2005 Steve Matson
Sherardia arvensis
2008 Steve Matson
Sherardia arvensis
2008 Steve Matson

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

MALVACEAE

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

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

Silene laciniata ssp. californica    California indian pink
native
Perennial herb

CARYOPHYLLACEAE

Silene laciniata ssp. californica
2023 Alaine Arslan
Silene laciniata ssp. californica
2016 Sue Graue
Silene laciniata ssp. californica
2019 Sue Graue

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

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

SOLANACEAE

Solanum americanum
2014 Steve Matson
Solanum americanum
2019 Gary McDonald
Solanum americanum
2021 David Wolfson

Solanum umbelliferum    Blue witch nightshade,  Bluewitch nightshade
native
Shrub

SOLANACEAE

Solanum umbelliferum
2014 Steve Matson
Solanum umbelliferum
2014 Steve Matson
Solanum umbelliferum
2014 Steve Matson

Soleirolia soleirolii    Baby's tears,  Mother of thousands
non-native
Annual herb

URTICACEAE

Soleirolia soleirolii
2020 Ron Vanderhoff
Soleirolia soleirolii
2021 Donald Burk
Soleirolia soleirolii
2020 Ron Vanderhoff

Solidago velutina ssp. californica    California goldenrod,  Oreja de liebre
native
Perennial herb

ASTERACEAE

Solidago velutina ssp. californica
2013 Steve Matson
Solidago velutina ssp. californica
2008 Steve Matson
Solidago velutina ssp. californica
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

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

Sparaxis tricolor    Harlequin flower,  Wandflower
non-native
Perennial herb

IRIDACEAE

Sparaxis tricolor
2018 Rachel Way
Sparaxis tricolor
2022 Tatiana Manzanillo
Sparaxis tricolor
2021 Jessica Cornelius

Sparganium eurycarpum var. eurycarpum    Broadfruit bur reed
native
Perennial herb

TYPHACEAE

Sparganium eurycarpum var. eurycarpum
2020 Ron Vanderhoff
Sparganium eurycarpum var. eurycarpum
2020 Ron Vanderhoff
Sparganium eurycarpum var. eurycarpum
2020 Ron Vanderhoff

Spartium junceum    Gorse,  Spanish broom
invasive non-native
Shrub

FABACEAE

Spartium junceum
2020 Ron Vanderhoff
Spartium junceum
2006 Jennifer Naegele
Spartium junceum
2021 Mary Herr

Spergula arvensis    Corn spurry
non-native
Annual herb

CARYOPHYLLACEAE

Spergula arvensis
2019 Diane Etchison
Spergula arvensis
2020 Mary Conway
Spergula arvensis
2022 Cynthia Powell

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

CARYOPHYLLACEAE

Spergularia bocconi
2021 Ron Vanderhoff
Spergularia bocconi
2021 Ron Vanderhoff
Spergularia bocconi
2019 Ron Vanderhoff

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

LAMIACEAE

Stachys bullata
2014 Steve Matson
Stachys bullata
2014 Steve Matson
Stachys bullata
2014 Steve Matson

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

LAMIACEAE

Stachys pycnantha
2023 David Wolfson
Stachys pycnantha
2019 David Wolfson
Stachys pycnantha
2021 Dan Quinn

Stachys rigida    Rough hedgenettle
native
Perennial herb

LAMIACEAE

Stachys rigida
2014 Steve Matson
Stachys rigida
2014 Steve Matson
Stachys rigida
2021 David popp

Stebbinsoseris heterocarpa    Grassland stebbinsoseris
native
Annual herb

ASTERACEAE

Stebbinsoseris heterocarpa
2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
2019 Ron Vanderhoff
Stebbinsoseris heterocarpa
2017 Diane Etchison

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

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

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

Stipa lepida    Foothill needle grass
native
Perennial grass

POACEAE

Stipa lepida
2017 Gary McDonald
Stipa lepida
2023 Ron Vanderhoff
Stipa lepida
2017 Gary McDonald

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

POACEAE

Stipa miliacea var. miliacea
2022 Donald Burk
Stipa miliacea var. miliacea
2009 Keir Morse
Stipa miliacea var. miliacea
2022 Donald Burk

Stipa pulchra    Purple needle grass
native
Perennial grass

POACEAE

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

Stuckenia pectinata    Sago pondweed
native
Perennial herb (aquatic)

POTAMOGETONACEAE

Stuckenia pectinata
2021 Ron Vanderhoff
Stuckenia pectinata
2021 Ron Vanderhoff
Stuckenia pectinata
2021 Ron Vanderhoff

Symphoricarpos albus var. laevigatus    Common snowberry,  Upright snowberry
native
Shrub

CAPRIFOLIACEAE

Symphoricarpos albus var. laevigatus
2020 Jacob Smith
Symphoricarpos albus var. laevigatus
2020 Jacob Smith
Symphoricarpos albus var. laevigatus
2021 Mike Russler

Symphoricarpos mollis    Creeping snowberry,  Trailing snowberry
native
Shrub

CAPRIFOLIACEAE

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

Symphyotrichum chilense    California aster,  Pacific aster
native
Perennial herb

ASTERACEAE

Symphyotrichum chilense
2020 Suzanne L. Weakley
Symphyotrichum chilense
2013 Arcangelo Wessells
Symphyotrichum chilense
2018 Stacie Wolny

Tanacetum parthenium    Feverfew
non-native
Perennial herb

ASTERACEAE

Tanacetum parthenium
2015 Ron Vanderhoff
Tanacetum parthenium
2022 Jennifer Mo
Tanacetum parthenium
2020 Bob Sweatt

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

ASTERACEAE

Taraxacum officinale
2021 Ron Vanderhoff
Taraxacum officinale
2019 Diane Etchison
Taraxacum officinale
2021 Ron Vanderhoff

Taraxia ovata    Sun cup,  Goldeneggs
native
Perennial herb

ONAGRACEAE

Taraxia ovata
2017 Steve Matson
Taraxia ovata
2017 Steve Matson
Taraxia ovata
2017 Steve Matson

Tauschia hartwegii    Hartweg's tauschia,  Hartweg's umbrellawort,  Tauschia
native
Perennial herb

APIACEAE

Tauschia hartwegii
2006 Steve Matson
Tauschia hartwegii
2006 Steve Matson
Tauschia hartwegii
2006 Steve Matson

Tauschia kelloggii    Kellogg's tauschia,  Kellogg's umbrellawort
native
Perennial herb

APIACEAE

Tauschia kelloggii
2023 R.A. Chasey
Tauschia kelloggii
2023 R.A. Chasey
Tauschia kelloggii
2023 R.A. Chasey

Tellima grandiflora    Bigflower tellima,  Fringe cups
native
Perennial herb

SAXIFRAGACEAE

Tellima grandiflora
2017 Steve Matson
Tellima grandiflora
2017 Steve Matson
Tellima grandiflora
2016 Steve Matson

Thalictrum fendleri var. polycarpum    Fendler's meadow rue,  Meadow rue,  Torrey's meadow rue
native
Perennial herb

RANUNCULACEAE

Thalictrum fendleri var. polycarpum
2017 Thomas Reyes
Thalictrum fendleri var. polycarpum
2019 Patrick Furtado
Thalictrum fendleri var. polycarpum
2020 Diane Etchison

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

Torilis arvensis    Field hedge parsley,  Spreading hedgeparsley,  Tall Sock-Destroyer
invasive non-native
Annual herb

APIACEAE

Torilis arvensis
2019 Ron Vanderhoff
Torilis arvensis
2017 Gary McDonald
Torilis arvensis
2018 Lindsey Hack

Torilis nodosa    Hedge parsley,  Knotted hedge parsley,  Knotted hedgeparsley
non-native
Annual herb

APIACEAE

Torilis nodosa
2011 Steve Matson
Torilis nodosa
2011 Steve Matson
Torilis nodosa
2011 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

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

MELANTHIACEAE

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

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon porrifolius
2019 Julie dinsdale
Tragopogon porrifolius
2015 David Wolfson
Tragopogon porrifolius
2020 Martin Cooper

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

Trientalis latifolia    Pacific starflower
native
Perennial herb

MYRSINACEAE

Trientalis latifolia
2021 Lisa Berry
Trientalis latifolia
2014 James Gonsman
Trientalis latifolia
2008 Steve Matson

Trifolium albopurpureum    Indian clover,  Rancheria clover
native
Annual herb

FABACEAE

Trifolium albopurpureum
2023 Mary Gerbic
Trifolium albopurpureum
2023 Mary Gerbic
Trifolium albopurpureum
2021 Mike Russler

Trifolium arvense    Rabbitfoot clover
non-native
Annual herb

FABACEAE

Trifolium arvense
2018 Gary McDonald
Trifolium arvense
2018 Gary McDonald
Trifolium arvense
2020 R.A. Chasey

Trifolium barbigerum    Bearded clover
native
Annual herb

FABACEAE

Trifolium barbigerum
2023 R.A. Chasey
Trifolium barbigerum
2022 R.A. Chasey
Trifolium barbigerum
2010 Toni Corelli

Trifolium bifidum var. bifidum    Pinole clover
native
Annual herb

FABACEAE

Trifolium bifidum var. bifidum
2020 Matt Berger
Trifolium bifidum var. bifidum
2020 Matt Berger
Trifolium bifidum var. bifidum
2020 Matt Berger

Trifolium bifidum var. decipiens    Notch leaf clover
native
Annual herb

FABACEAE

Trifolium bifidum var. decipiens
2022 R.A. Chasey
Trifolium bifidum var. decipiens
2022 R.A. Chasey
Trifolium bifidum var. decipiens
2021 Cameron Chabre

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 cernuum    Nodding clover
non-native
Annual herb

FABACEAE

Trifolium cernuum
2002 Doreen L. Smith
Trifolium cernuum
2010 Zoya Akulova
Trifolium cernuum
2010 Zoya Akulova

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

FABACEAE

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

Trifolium depauperatum var. truncatum    Dwarf sack clover
native
Annual herb

FABACEAE

Trifolium depauperatum var. truncatum
2021 Ron Vanderhoff
Trifolium depauperatum var. truncatum
2023 Steven Mills Glascock
Trifolium depauperatum var. truncatum
2021 Ron Vanderhoff

Trifolium dichotomum    Branched indian clover
native
Annual herb

FABACEAE

Trifolium dichotomum
2023 Helen Hancock
Trifolium dichotomum
2022 Helen Hancock
Trifolium dichotomum
2023 Helen Hancock

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

FABACEAE

Trifolium dubium
2018 Stacie Wolny
Trifolium dubium
2022 Dana York
Trifolium dubium
2017 MCOSD EDRR

Trifolium fucatum    Bull clover,  Sour clover
native
Annual herb

FABACEAE

Trifolium fucatum
2014 Steve Matson
Trifolium fucatum
2014 Steve Matson
Trifolium fucatum
2020 Paul Aigner

Trifolium glomeratum    Clustered clover
non-native
Annual herb

FABACEAE

Trifolium glomeratum
2012 Michael Mitchell
Trifolium glomeratum
2012 Michael Mitchell
Trifolium glomeratum
2023 Donald Burk

Trifolium gracilentum    Graceful clover,  Pin point clover,  Pinpoint clover
native
Annual herb

FABACEAE

Trifolium gracilentum
2016 Steve Matson
Trifolium gracilentum
2016 Steve Matson
Trifolium gracilentum
2016 Steve Matson

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 hybridum    Alsike clover
non-native
Perennial herb

FABACEAE

Trifolium hybridum
2008 Keir Morse
Trifolium hybridum
2015 Barry Breckling
Trifolium hybridum
2012 Zoya Akulova

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 oliganthum    Few flowered clover,  Fewflower clover,  Minitomcat clover
native
Annual herb

FABACEAE

Trifolium oliganthum
2021 Mike Russler
Trifolium oliganthum
2022 Mary Merriman
Trifolium oliganthum
2023 R.A. Chasey

Trifolium repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens
2017 Gary McDonald
Trifolium repens
2007 Steve Matson
Trifolium repens
2017 Gary McDonald

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

FABACEAE

Trifolium subterraneum
2008 Steve Matson
Trifolium subterraneum
2008 Steve Matson
Trifolium subterraneum
2017 Steve Matson

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

Trillium chloropetalum    Common trillium,  Giant wakerobin,  Trillium
native
Perennial herb

MELANTHIACEAE

Trillium chloropetalum
2020 Bob Sweatt
Trillium chloropetalum
2019 Susan McDougall
Trillium chloropetalum
2020 Bob Sweatt

Triodanis biflora    Venus looking glass,  Venus' looking glass
native
Annual herb

CAMPANULACEAE

Triodanis biflora
2020 Ken Hickman
Triodanis biflora
2015 Hayley Ross
Triodanis biflora
2018 Ken Hickman

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

OROBANCHACEAE

Triphysaria eriantha ssp. eriantha
2005 Steve Matson
Triphysaria eriantha ssp. eriantha
2021 Steve Matson
Triphysaria eriantha ssp. eriantha
2008 Steve Matson

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

Trisetum canescens    Nodding oatgrass,  Nodding trisetum,  Tall trisetum
native
Perennial grass

POACEAE

Trisetum canescens
2020 John Rawlings
Trisetum canescens
2011 Steve Matson
Trisetum canescens
2022 Ellen Uhler

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 ixioides ssp. ixioides    Golden brodiaea
native
Perennial herb

THEMIDACEAE

Triteleia ixioides ssp. ixioides
2020 Mary Conway
Triteleia ixioides ssp. ixioides
2019 Mary Conway
Triteleia ixioides ssp. ixioides
2020 John Rawlings

Triteleia laxa    Ithuriel's spear
native
Perennial herb

THEMIDACEAE

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

Tropidocarpum gracile    Dobie pod,  Slender keel fruit,  Slender tropidocarpum
native
Annual herb

BRASSICACEAE

Tropidocarpum gracile
2014 Steve Matson
Tropidocarpum gracile
2014 Steve Matson
Tropidocarpum gracile
2014 Steve Matson

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

Ulmus minor    Smooth leaved elm, english elm
non-native
Tree

ULMACEAE

Ulmus minor
2013 Arcangelo Wessells
Ulmus minor
2020 Donald Burk
Ulmus minor
2013 Arcangelo Wessells

Umbellularia californica    Bay laurel,  California bay,  California laurel, bay tree
native
Tree

LAURACEAE

Umbellularia californica
2023 Mary Ann Machi
Umbellularia californica
2016 Steve Matson
Umbellularia californica
2023 Mary Ann Machi

Uropappus lindleyi    Silver puffs,  Uropappus
native
Annual herb

ASTERACEAE

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

Urospermum picroides    Bristly tail seed,  Prickly goldenfleece
non-native
Annual, Perennial herb

ASTERACEAE

Urospermum picroides
2019 David Greenberger
Urospermum picroides
2014 Toni Corelli
Urospermum picroides
2019 Toni Corelli

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

URTICACEAE

Urtica dioica ssp. holosericea
2022 Donald Burk
Urtica dioica ssp. holosericea
2019 Hunter Breck
Urtica dioica ssp. holosericea
2021 R.A. Chasey

Verbascum thapsus    Common mullein,  Woolly mullein
invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbascum thapsus
2021 R.A. Chasey
Verbascum thapsus
2020 Kim Cabrera
Verbascum thapsus
2019 Marisa Persaud

Verbena bonariensis    Purple top vervain,  Purpletop vervain
invasive non-native
Annual, Biennial herb

VERBENACEAE

Verbena bonariensis
2014 Judy and Barry Breckling
Verbena bonariensis
2003 Gerald Carr
Verbena bonariensis
2003 Gerald Carr

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

VERBENACEAE

Verbena lasiostachys var. lasiostachys
2010 Steve Matson
Verbena lasiostachys var. lasiostachys
2010 Steve Matson
Verbena lasiostachys var. lasiostachys
2010 Steve Matson

native
Perennial herb

VERBENACEAE

Verbena lasiostachys var. scabrida
2021 R.A. Chasey
Verbena lasiostachys var. scabrida
2023 Ron Vanderhoff
Verbena lasiostachys var. scabrida
2020 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 arvensis    Corn speedwell,  Speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica arvensis
2006 Steve Matson
Veronica arvensis
2006 Steve Matson
Veronica arvensis
2020 mike andrews

Veronica peregrina ssp. xalapensis    Hairy purslane speedwell,  Neckweed,  Purslane speedwell
native
Annual herb

PLANTAGINACEAE

Veronica peregrina ssp. xalapensis
2020 Steve Matson
Veronica peregrina ssp. xalapensis
2020 Ron Vanderhoff
Veronica peregrina ssp. xalapensis
2020 Steve Matson

Veronica persica    Bird's eye speedwell,  Birdeye speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica persica
2019 Patrick Furtado
Veronica persica
2022 Bob Sweatt
Veronica persica
2022 Ron Vanderhoff

Vicia americana ssp. americana    American vetch
native
Perennial herb, Vine

FABACEAE

Vicia americana ssp. americana
2008 Steve Matson
Vicia americana ssp. americana
2008 Steve Matson
Vicia americana ssp. americana
2008 Steve Matson

Vicia disperma    European vetch
non-native
Annual herb

FABACEAE

Vicia disperma
2020 Ryan Carle
Vicia disperma
2020 Ryan Carle
Vicia disperma
2020 Ryan Carle

Vicia sativa ssp. nigra    Common vetch,  Garden vetch,  Smaller common vetch
non-native
Annual herb, Vine

FABACEAE

Vicia sativa ssp. nigra
2020 Ken Lunders
Vicia sativa ssp. nigra
2020 Ron Vanderhoff
Vicia sativa ssp. nigra
2020 Ron Vanderhoff

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

FABACEAE

Vicia sativa ssp. sativa
2007 Toni Corelli
Vicia sativa ssp. sativa
2020 Ron Vanderhoff
Vicia sativa ssp. sativa
2020 Ron Vanderhoff

Vicia tetrasperma    Four seeded vetch,  Lentil vetch
non-native
Annual herb

FABACEAE

Vicia tetrasperma
2009 Avis Boutell
Vicia tetrasperma
2009 Avis Boutell
Vicia tetrasperma
2019 Jackie Gamble

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

FABACEAE

Vicia villosa ssp. varia
2006 Steve Matson

Vinca major    Bigleaf periwinkle,  Greater periwinkle,  Vinca
invasive non-native
Perennial herb

APOCYNACEAE

Vinca major
2020 Julia Markey
Vinca major
2022 Ron Vanderhoff
Vinca major
2021 Ron Vanderhoff

Viola ocellata    Pinto violet,  Twoeyed violet,  Western heart's ease
native
Perennial herb

VIOLACEAE

Viola ocellata
2020 Amy Rapport
Viola ocellata
2008 Steve Matson
Viola ocellata
2018 Stacie Wolny

Vitis vinifera    Cultivated grape,  Wine grape
non-native
Vine, Shrub

VITACEAE

Vitis vinifera
2020 Jennifer Mo
Vitis vinifera
2014 Eric Wrubel
Vitis vinifera
2005 Luigi Rignanese

Whipplea modesta    Modesty,  Whipplea,  Whipplevine
native
Vine, Shrub

HYDRANGEACEAE

Whipplea modesta
2004 Steve Matson
Whipplea modesta
2018 Paul Preston and Tim Lukaszewski
Whipplea modesta
2014 James Gonsman

Woodwardia fimbriata    Chain fern,  Giant chain fern,  Giant chainfern
native
Fern

BLECHNACEAE

Woodwardia fimbriata
2019 Julie Kierstead Nelson
Woodwardia fimbriata
2020 R.A. Chasey
Woodwardia fimbriata
2020 Julie A. Kierstead

Wyethia angustifolia    California compassplant,  Narrow leaf mule ears,  Narrow leaved mule ears
native
Perennial herb

ASTERACEAE

Wyethia angustifolia
2023 Suzanne L. Weakley
Wyethia angustifolia
2021 R.A. Chasey
Wyethia angustifolia
2009 BOB CASE

Wyethia glabra    Coast range mule ears,  Shining mule ears,  Smooth mule ears
native
Perennial herb

ASTERACEAE

Wyethia glabra
2020 Julie A. Kierstead
Wyethia glabra
2022 R.A. Chasey
Wyethia glabra
2019 Colleen Herr

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

ASTERACEAE

Xanthium spinosum
2017 B.J. Dion
Xanthium spinosum
2021 Lynn Overtree
Xanthium spinosum
2017 B.J. Dion

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

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

Yabea microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

Yabea microcarpa
2021 Helen Hancock
Yabea microcarpa
2022 R.A. Chasey
Yabea microcarpa
2012 Toni Corelli

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

ARACEAE

Zantedeschia aethiopica
2020 Jennifer Mo
Zantedeschia aethiopica
2020 Ron Vanderhoff
Zantedeschia aethiopica
2021 MCOSD EDRR

Zeltnera davyi    Davy's centaury
native
Annual herb

GENTIANACEAE

Zeltnera davyi
2018 Mary Conway
Zeltnera davyi
2022 Irene Rosen
Zeltnera davyi
2023 R.A. Chasey

Zeltnera muehlenbergii    Muehlenberg's centaury
native
Annual herb

GENTIANACEAE

Zeltnera muehlenbergii
2019 Patrick Furtado
Zeltnera muehlenbergii
2015 James Gonsman
Zeltnera muehlenbergii
2011 Michael Perlmutter