logo Calflora Illustrated Plant List 

Redwood National Park plant list from NPS IRM
Humboldt County

 (2018-03-26)

Record Detail Nearby Surveys What Grows Here?
1096 PLANTS
Abelia Xgrandiflora    Glossy abelia
non-native
Perennial herb

CAPRIFOLIACEAE

Abelia Xgrandiflora
2022 Andy Ford
Abelia Xgrandiflora
2008 Forest & Kim Starr
Abelia Xgrandiflora
2014 Richard Chasey

Abies grandis    Grand fir
native
Tree

PINACEAE

Abies grandis
2022 Nicole Forte
Abies grandis
2022 R.A. Chasey
Abies grandis
2016 Dave Brandt

Abronia latifolia    Coastal sand verbena,  Sand verbena,  Yellow sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia latifolia
2019 Katy Pye
Abronia latifolia
2020 David Krause
Abronia latifolia
2017 Mary Sue Ittner

Abronia umbellata    Beach sand verbena,  Pink sand verbena,  Purple sand verbena
native
Perennial herb

NYCTAGINACEAE

Abronia umbellata
2021 Meghan Lindt
Abronia umbellata
2018 Ken Hickman
Abronia umbellata
2019 Kaleb Goff

Abronia umbellata var. breviflora    Pink sand-verbena
rare native
Perennial herb

NYCTAGINACEAE

Abronia umbellata var. breviflora
2019 Heather Morrison
Abronia umbellata var. breviflora
2019 Lenihan Mazur
Abronia umbellata var. breviflora
2019 Lenihan Mazur

Acacia dealbata    Silver wattle
invasive non-native
Tree, Shrub

FABACEAE

Acacia dealbata
2020 Randy Huey
Acacia dealbata
2022 Erin Jackson
Acacia dealbata
2019 Randy Huey

Acacia mearnsii    Black wattle
non-native
Tree, Shrub

FABACEAE

Acacia mearnsii
2013 Ron Vanderhoff
Acacia mearnsii
2019 Ron Vanderhoff
Acacia mearnsii
2019 Ron Vanderhoff

Acer circinatum    Vine maple
native
Tree, Shrub

SAPINDACEAE

Acer circinatum
2013 James Gonsman
Acer circinatum
2018 Kyle Johnson
Acer circinatum
2021 Julie A. Kierstead

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
2020 Diane Etchison
Acer macrophyllum
2018 Ron Vanderhoff
Acer macrophyllum
2018 Julie Kierstead Nelson

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2022 Andy Ford
Achillea millefolium
2014 James Gonsman
Achillea millefolium
2018 Gary McDonald

Achlys triphylla    Sweet after death
native
Perennial herb

BERBERIDACEAE

Achlys triphylla
2020 Steve Conger
Achlys triphylla
2011 Ryan Batten
Achlys triphylla
2007 Shawn DeCew

Achlys triphylla ssp. tryphylla    Sweet after death
native
Perennial herb

BERBERIDACEAE

Achlys triphylla ssp. tryphylla
2020 Steve Conger
Achlys triphylla ssp. tryphylla
2011 Ryan Batten
Achlys triphylla ssp. tryphylla
2007 Shawn DeCew

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

FABACEAE

Acmispon americanus var. americanus
2019 Ron Vanderhoff
Acmispon americanus var. americanus
2019 Matt Berger
Acmispon americanus var. americanus
2017 David Wolfson

Acmispon parviflorus    Hill lotus
native
Annual herb

FABACEAE

Acmispon parviflorus
2019 Ron Vanderhoff
Acmispon parviflorus
2005 Steve Matson
Acmispon parviflorus
2005 Steve Matson

Actaea rubra    Red baneberry,  Western baneberry
native
Perennial herb

RANUNCULACEAE

Actaea rubra
2020 Bob Sweatt
Actaea rubra
2016 Cindy Roessler
Actaea rubra
2013 BOB CASE

Adenocaulon bicolor    American trailplant,  Trail plant
native
Perennial herb

ASTERACEAE

Adenocaulon bicolor
2020 Bob Sweatt
Adenocaulon bicolor
2020 Cynthia Powell
Adenocaulon bicolor
2018 Julie Kierstead Nelson

Adiantum aleuticum    Five finger fern
native
Fern

PTERIDACEAE

Adiantum aleuticum
2014 James Gonsman
Adiantum aleuticum
2018 Neal Kramer
Adiantum aleuticum
2021 R.A. Chasey

Adiantum pedatum    Five finger fern
native
Fern

PTERIDACEAE

Adiantum pedatum
2014 James Gonsman
Adiantum pedatum
2018 Neal Kramer
Adiantum pedatum
2021 R.A. Chasey

Ageratina occidentalis    Western eupatorium,  Western joepiweed,  Western snakeroot
native
Perennial herb

ASTERACEAE

Ageratina occidentalis
2022 Ian Archer Winick
Ageratina occidentalis
2022 Jane Cohn
Ageratina occidentalis
2019 Bob Sweatt

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

ASTERACEAE

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

Agoseris grandiflora    Bigflower agoseris,  California dandelion,  Giant mountain dandelion
native
Perennial herb

ASTERACEAE

Agoseris grandiflora
2021 Amber Bedgood
Agoseris grandiflora
2021 Cynthia Powell
Agoseris grandiflora
2020 Diane Etchison

Agrostis alba    Creeping bentgras,  Giant bentgrass,  Redtop
non-native
Perennial grass

POACEAE

Agrostis alba
2022 John Rawlings
Agrostis alba
2022 John Rawlings
Agrostis alba
2005 Steve Matson

Agrostis capillaris    Colonial bentgrass
non-native
Perennial grass

POACEAE

Agrostis capillaris
2017 Gary McDonald
Agrostis capillaris
2017 Gary McDonald
Agrostis capillaris
2017 Gary McDonald

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 gigantea    Creeping bentgras,  Giant bentgrass,  Redtop
non-native
Perennial grass

POACEAE

Agrostis gigantea
2022 John Rawlings
Agrostis gigantea
2022 John Rawlings
Agrostis gigantea
2005 Steve Matson

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

POACEAE

Agrostis hallii
2021 John Rawlings
Agrostis hallii
2021 John Rawlings
Agrostis hallii
2005 Steve Matson

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

POACEAE

Agrostis hallii var. hallii
2021 John Rawlings
Agrostis hallii var. hallii
2021 John Rawlings
Agrostis hallii var. hallii
2005 Steve Matson

Agrostis idahoensis    Colonial bentgrass,  Idaho bentgrass
native
Perennial grass

POACEAE

Agrostis idahoensis
2020 John Rawlings
Agrostis idahoensis
2020 John Rawlings
Agrostis idahoensis
2021 Travis Columbus

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

POACEAE

Agrostis microphylla
2019 Toni Corelli
Agrostis microphylla
2022 Ken Hickman
Agrostis microphylla
2021 Toni Corelli

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

Agrostis tenuis var. aristata    Colonial bentgrass
non-native
Perennial grass

POACEAE

Agrostis tenuis var. aristata
2017 Gary McDonald
Agrostis tenuis var. aristata
2017 Gary McDonald
Agrostis tenuis var. aristata
2017 Gary McDonald

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

POACEAE

Aira caryophyllea
2019 Gary McDonald
Aira caryophyllea
2005 Steve Matson
Aira caryophyllea
2015 Chris Jaster

Aira praecox    Yellow hairgrass
invasive non-native
Annual grass

POACEAE

Aira praecox
2018 Ken Hickman
Aira praecox
2022 John Rawlings
Aira praecox
2010 National Park Service

Allium   


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

ALLIACEAE

Allium falcifolium
2011 Chris Mo
Allium falcifolium
2018 Margarita Orlova
Allium falcifolium
2011 Chris Mo

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

ALLIACEAE

Allium triquetrum
2019 Adam Chasey
Allium triquetrum
2018 Ken Lunders
Allium triquetrum
2019 Randy Huey

Allotropa virgata    Candystriped allotropa,  Sugar stick,  Sugarstick
native
Perennial herb (mycoparasitic)

ERICACEAE

Allotropa virgata
2020 Bob Sweatt
Allotropa virgata
2018 Wendy Smit
Allotropa virgata
2022 Jane Cohn

Alnus rhombifolia    White alder
native
Tree

BETULACEAE

Alnus rhombifolia
2022 David Strauch
Alnus rhombifolia
2014 Garth Wadsworth
Alnus rhombifolia
2008 Zoya Akulova

Alnus rubra    Oregon alder,  Red alder
native
Tree, Shrub

BETULACEAE

Alnus rubra
2013 Ralph Gibson
Alnus rubra
2009 Toni Corelli
Alnus rubra
2021 R.A. Chasey

Alopecurus aequalis    Short awned foxtail,  Sonoma alopecurus,  Water foxtail
native
Perennial grass

POACEAE

Alopecurus aequalis
2003 Steve Matson
Alopecurus aequalis
2003 Steve Matson
Alopecurus aequalis
2003 Steve Matson

Alopecurus geniculatus    Marsh foxtail,  Water foxtail
native
Perennial grass

POACEAE

Alopecurus geniculatus
2013 Robert Sikora
Alopecurus geniculatus
2009 Trent M. Draper
Alopecurus geniculatus
2013 Robert Sikora


Amaryllis belladonna    Belladonna lily
non-native
Perennial herb

AMARYLLIDACEAE

Amaryllis belladonna
2016 Camille Nowell
Amaryllis belladonna
2020 Jacob Martin
Amaryllis belladonna
2022 Ron Vanderhoff

Ambrosia chamissonis    Beach bur,  Silver beachweed
native
Perennial herb

ASTERACEAE

Ambrosia chamissonis
2020 Diane Etchison
Ambrosia chamissonis
2018 Richard Spjut
Ambrosia chamissonis
2006 Matt Below

Amelanchier alnifolia    Saskatoon serviceberry,  Service berry
native
Shrub

ROSACEAE

Amelanchier alnifolia
2020 Robert Katz
Amelanchier alnifolia
2020 Bob Sweatt
Amelanchier alnifolia
2020 Bob Sweatt

Amelanchier alnifolia var. semiintegrifolia    Pacific serviceberry,  Service berry
native
Shrub

ROSACEAE

Amelanchier alnifolia var. semiintegrifolia
2021 Steve Matson
Amelanchier alnifolia var. semiintegrifolia
2021 Steve Matson
Amelanchier alnifolia var. semiintegrifolia
2021 Steve Matson

Amelanchier pallida    Pale serviceberry,  Pallid serviceberry,  Sarvis
native
Shrub

ROSACEAE

Amelanchier pallida
Geoff Burleigh
Amelanchier pallida
Geoff Burleigh
Amelanchier pallida
2010 Margo Bors

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

ROSACEAE

Amelanchier utahensis
2022 R.A. Chasey
Amelanchier utahensis
1990 Arthur H. Bazell, M.D.
Amelanchier utahensis
2006 Steve Matson

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

POACEAE

Ammophila arenaria
2016 Steve Matson
Ammophila arenaria
2019 Lenihan Mazur
Ammophila arenaria
2016 Steve Matson

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia intermedia
2020 Matt Berger
Amsinckia intermedia
1982 Geoff Burleigh
Amsinckia intermedia
2019 Ron Vanderhoff

Amsinckia lycopsoides    Bugloss fiddleneck,  Tarweed fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia lycopsoides
2021 David popp
Amsinckia lycopsoides
2022 Ken-ichi Ueda
Amsinckia lycopsoides
2022 Catherine Chang

Amsinckia menziesii var. intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia menziesii var. intermedia
2020 Matt Berger
Amsinckia menziesii var. intermedia
1982 Geoff Burleigh
Amsinckia menziesii var. intermedia
2019 Ron Vanderhoff

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
2017 B.J. Dion
Anagallis arvensis
2019 Barbara Boethling
Anagallis arvensis
2022 Chris McDonald

Anaphalis margaritacea    Pearly everlasting
native
Perennial herb

ASTERACEAE

Anaphalis margaritacea
2020 Bob Sweatt
Anaphalis margaritacea
2021 Ken Lunders
Anaphalis margaritacea
2014 James Gonsman

Anemone deltoidea    Columbian windflower
native
Perennial herb

RANUNCULACEAE

Anemone deltoidea
2019 Tristan K Cole
Anemone deltoidea
2011 Steve Matson
Anemone deltoidea
2011 Steve Matson

Anemone oregana    Blue windflower,  Oregon anemone,  Western wood anenome
native
Perennial herb

RANUNCULACEAE

Anemone oregana
2008 Gerald Carr
Anemone oregana
2011 Steve Matson
Anemone oregana
2011 Steve Matson

Anemone oregana var. oregana    Blue windflower
native
Perennial herb

RANUNCULACEAE

Anemone oregana var. oregana
2008 Gerald Carr
Anemone oregana var. oregana
2008 Gerald Carr
Anemone oregana var. oregana
2014 John Doyen

Anethum graveolens    Dill
non-native
Annual herb

APIACEAE

Anethum graveolens
2011 Louis-M. Landry
Anethum graveolens
2011 Louis-M. Landry

Angelica genuflexa    Kneeling angelica
native
Perennial herb

APIACEAE

Angelica genuflexa
2009 Gerald Carr
Angelica genuflexa
2009 Gerald Carr
Angelica genuflexa
2009 Gerald Carr

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

APIACEAE

Angelica hendersonii
2020 Suzanne L. Weakley
Angelica hendersonii
2009 Ron Wolf
Angelica hendersonii
2014 Zoya Akulova

Angelica tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

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

Angelica tomentosa var. hendersonii    Coast angelica,  Henderson's angelica
native
Perennial herb

APIACEAE

Angelica tomentosa var. hendersonii
2020 Suzanne L. Weakley
Angelica tomentosa var. hendersonii
2009 Ron Wolf
Angelica tomentosa var. hendersonii
2014 Zoya Akulova

Angelica tomentosa var. tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

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

Anisocarpus madioides    Woodland madia
native
Perennial herb

ASTERACEAE

Anisocarpus madioides
2019 Ken Lunders
Anisocarpus madioides
2021 Cara Wilcox
Anisocarpus madioides
2020 Cara Wilcox

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

ASTERACEAE

Anthemis cotula
2014 Bill Thiessen
Anthemis cotula
2019 Nathan Taxel
Anthemis cotula
2017 Diane Etchison

Anthoxanthum aristatum    Annual vernal grass,  Annual vernalgrass
non-native
Annual grass

POACEAE

Anthoxanthum aristatum
2006 Gerald Carr
Anthoxanthum aristatum
2006 Gerald Carr
Anthoxanthum aristatum
2014 Zoya Akulova (ssp. aristatum)

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

Anthoxanthum odoratum    Sweet vernal grass,  Sweet vernalgrass
invasive non-native
Annual, Perennial grass

POACEAE

Anthoxanthum odoratum
2017 Christine Sullivan
Anthoxanthum odoratum
2017 Steve Matson
Anthoxanthum odoratum
2017 Christine Sullivan

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

ROSACEAE

Aphanes occidentalis
2019 Ron Vanderhoff
Aphanes occidentalis
2017 Ron Vanderhoff
Aphanes occidentalis
2020 R.A. Chasey

Apocynum androsaemifolium    Bitter dogbane,  Spreading dogbane
native
Perennial herb

APOCYNACEAE

Apocynum androsaemifolium
2003 Steve Matson
Apocynum androsaemifolium
2020 Stacie Wolny
Apocynum androsaemifolium
2020 Stacie Wolny

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

RANUNCULACEAE

Aquilegia formosa
2022 Charles Russell
Aquilegia formosa
2022 Jerry Murray
Aquilegia formosa
2019 Diane Etchison

Aquilegia formosa var. truncata    Crimson columbine,  Sitka columbine,  Western columbine
native
Perennial herb

RANUNCULACEAE

Aquilegia formosa var. truncata
2022 Charles Russell
Aquilegia formosa var. truncata
2022 Jerry Murray
Aquilegia formosa var. truncata
2019 Diane Etchison

Arabis glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Arabis glabra
2021 David Wolfson
Arabis glabra
2021 Mike Russler
Arabis glabra
2020 Chico Hiking Association

Arabis glabra var. glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Arabis glabra var. glabra
2021 David Wolfson
Arabis glabra var. glabra
2021 Mike Russler
Arabis glabra var. glabra
2020 Chico Hiking Association

Arabis hirsuta var. glabrata    Eschscholtz's hairy rockcress
native
Perennial herb

BRASSICACEAE

Arabis hirsuta var. glabrata
2007 Gerald Carr
Arabis hirsuta var. glabrata
2007 Gerald Carr
Arabis hirsuta var. glabrata
2007 Gerald Carr

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

Araucaria araucana   


Arbutus menziesii    Madrono,  Pacific madrone
native
Tree

ERICACEAE

Arbutus menziesii
2016 Cindy Roessler
Arbutus menziesii
2021 R.A. Chasey
Arbutus menziesii
2008 Neal Kramer

Arbutus unedo    Strawberry tree
non-native
Tree

ERICACEAE

Arbutus unedo
2018 Catherine Capone
Arbutus unedo
2018 Catherine Capone
Arbutus unedo
2018 Catherine Capone

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

VISCACEAE

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

Arctium minus    Common burdock,  Lesser burdock,  Small burdock
non-native
Perennial herb

ASTERACEAE

Arctium minus
2018 Melissa Brooks Kraemer
Arctium minus
2018 Melissa Brooks Kraemer
Arctium minus
2021 Donald Burk

Arctostaphylos canescens    Hoary manzanita
native
Shrub

ERICACEAE

Arctostaphylos canescens
2015 Robert Steers
Arctostaphylos canescens
2008 Keir Morse
Arctostaphylos canescens
2009 Jorg Fleige

Arctostaphylos columbiana    Hairy manzanita,  Redwood manzanita
native
Tree, Shrub

ERICACEAE

Arctostaphylos columbiana
2020 R.A. Chasey
Arctostaphylos columbiana
2009 Zoya Akulova
Arctostaphylos columbiana
2020 R.A. Chasey

Arctostaphylos hispidula    Howell's manzanita
rare native
Shrub

ERICACEAE

Arctostaphylos hispidula
2019 Adam Chasey
Arctostaphylos hispidula
2019 Adam Chasey
Arctostaphylos hispidula
2008 Norman Jensen

Arctostaphylos manzanita    Common manzanita
native
Shrub

ERICACEAE

Arctostaphylos manzanita
2019 Julie Kierstead Nelson
Arctostaphylos manzanita
2019 Adam Chasey
Arctostaphylos manzanita
2019 R.A. Chasey

Arctostaphylos nevadensis    Pine mat manzanita,  Pinemat manzanita
native
Shrub

ERICACEAE

Arctostaphylos nevadensis
2019 Julie A. Kierstead
Arctostaphylos nevadensis
2019 Julie A. Kierstead
Arctostaphylos nevadensis
2007 Norman Jensen

native
Shrub

ERICACEAE

Arctostaphylos nevadensis ssp. nevadensis
2022 John Rawlings
Arctostaphylos nevadensis ssp. nevadensis
2019 Susan McDougall
Arctostaphylos nevadensis ssp. nevadensis
2015 Steve Matson

Arctostaphylos uva-ursi    Bearberry manzanita,  Kinnikinnick
native
Shrub

ERICACEAE

Arctostaphylos uva-ursi
2020 Doug Allshouse
Arctostaphylos uva-ursi
2019 Cynthia Powell
Arctostaphylos uva-ursi
2022 Cynthia Powell

Arctostaphylos viscida    Sticky whiteleaf manzanita
native
Tree, Shrub

ERICACEAE

Arctostaphylos viscida
2019 Julie Kierstead Nelson
Arctostaphylos viscida
2007 George W. Hartwell
Arctostaphylos viscida
2019 Belinda Lo

Arenaria douglasii    Douglas' sandwort,  Douglas' stitchwort
native
Annual herb

CARYOPHYLLACEAE

Arenaria douglasii
2020 David Self
Arenaria douglasii
2021 R.A. Chasey
Arenaria douglasii
2018 James Gonsman

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

PLUMBAGINACEAE

Armeria maritima ssp. californica
2022 R.A. Chasey
Armeria maritima ssp. californica
2017 Mary Sue Ittner
Armeria maritima ssp. californica
2019 Amy Rapport

Arnica cordifolia    Heart leaved arnica,  Heartleaf arnica
native
Perennial herb

ASTERACEAE

Arnica cordifolia
2021 Jamie Spielmann
Arnica cordifolia
2020 Bob Sweatt
Arnica cordifolia
2003 Steve Matson

Arnica spathulata    Klamath arnica
rare native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica spathulata
2007 Gerald Carr
Arnica spathulata
2007 Gerald Carr
Arnica spathulata
2007 Gerald Carr

Arnica Xdiversifolia    Sticky leaf arnica
native
Perennial herb

ASTERACEAE

Arnica Xdiversifolia
2012 Dana York
Arnica Xdiversifolia
2012 Dana York
Arnica Xdiversifolia
2009 Barry Breckling

Arrhenatherum elatius    Tall oatgrass
non-native
Perennial grass

POACEAE

Arrhenatherum elatius
2020 Doug Allshouse
Arrhenatherum elatius
2021 John Rawlings
Arrhenatherum elatius
2013 Trent M. Draper

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
2021 Mike Russler
Artemisia douglasiana
2013 Brent Morgan
Artemisia douglasiana
2017 Alison Sheehey

Artemisia suksdorfii    Coastal mugwort
native
Perennial herb

ASTERACEAE

Artemisia suksdorfii
2020 Susan McDougall
Artemisia suksdorfii
2019 Jonathan Lee
Artemisia suksdorfii
1995 Saint Mary's College of California

Aruncus dioicus var. acuminatus    Bride's feathers
native
Perennial herb

ROSACEAE

Aruncus dioicus var. acuminatus
2019 Richard Spjut
Aruncus dioicus var. acuminatus
2013 John Doyen
Aruncus dioicus var. acuminatus
2018 Matt C. Berger

Asarum caudatum    Creeping wild ginger,  Longtail wild ginger
native
Perennial herb

ARISTOLOCHIACEAE

Asarum caudatum
2020 Susan McDougall
Asarum caudatum
2022 Jamie Spielmann
Asarum caudatum
2016 Richard Chasey

Aspidotis densa    Cliffbrake,  Lace fern
native
Fern

PTERIDACEAE

Aspidotis densa
2021 R.A. Chasey
Aspidotis densa
2019 Matt Berger
Aspidotis densa
2017 David popp

Aster breweri    Brewer's aster
native
Perennial herb

ASTERACEAE

Aster breweri
2009 Keir Morse
Aster breweri
2019 Bob Sweatt
Aster breweri
2017 David popp

Aster spathulatus    Western mountain aster
native
Perennial herb

ASTERACEAE

Aster spathulatus
2013 Steve Matson
Aster spathulatus
2013 Steve Matson
Aster spathulatus
2021 Mike Russler

Asyneuma prenanthoides    California harebell
native
Perennial herb

CAMPANULACEAE

Asyneuma prenanthoides
2015 Steve Matson
Asyneuma prenanthoides
2021 Cara Wilcox
Asyneuma prenanthoides
2009 Keir Morse

Athyrium filix-femina    Common ladyfern
native
Fern

ATHYRIACEAE

Athyrium filix-femina
2019 Julie Kierstead Nelson
Athyrium filix-femina
2008 Louis-M. Landry
Athyrium filix-femina
2009 Thomas Stoughton

Athyrium filix-femina var. cyclosorum    Common lady fern,  Subarctic lady fern,  Western lady fern
native
Fern

ATHYRIACEAE

Athyrium filix-femina var. cyclosorum
2022 R.A. Chasey
Athyrium filix-femina var. cyclosorum
2018 David popp
Athyrium filix-femina var. cyclosorum
2008 Keir Morse

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

CHENOPODIACEAE

Atriplex leucophylla
2019 Angelique Herman
Atriplex leucophylla
2019 Diane Etchison
Atriplex leucophylla
2020 Ken Hickman

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

POACEAE

Avena barbata
2018 Julian Geoghegan
Avena barbata
2019 Ron Vanderhoff
Avena barbata
2019 Ron Vanderhoff

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

POACEAE

Avena fatua
2022 John Rawlings
Avena fatua
2022 John Rawlings
Avena fatua
2002 James B. Gratiot

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

POACEAE

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

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
2022 Terry Beers
Baccharis pilularis
2021 Ron Vanderhoff: Staminate and pistillate plants in flower.
Baccharis pilularis
2018 Cynthia Powell

native
Shrub

ASTERACEAE

Baccharis pilularis ssp. consanguinea
2009 Toni Corelli
Baccharis pilularis ssp. consanguinea
2022 John Doyen
Baccharis pilularis ssp. consanguinea
2019 Cynthia Powell

Bambusa   


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

Barbarea orthoceras var. dolichocarpa    American rocket,  American wintercress,  Erectpod wintercress
native
Perennial herb

BRASSICACEAE

Barbarea orthoceras var. dolichocarpa
2015 James Gonsman
Barbarea orthoceras var. dolichocarpa
2019 Diane Etchison
Barbarea orthoceras var. dolichocarpa
2020 Diane Etchison

Bellis perennis    English daisy,  English lawn daisy
invasive non-native
Perennial herb

ASTERACEAE

Bellis perennis
2020 Bob Sweatt
Bellis perennis
2020 Bob Sweatt
Bellis perennis
2020 Bob Sweatt

Berberis aquifolium    Mountain grape,  Mountaingrape,  Oregon grape
native
Shrub

BERBERIDACEAE

Berberis aquifolium
2020 Chico Hiking Association
Berberis aquifolium
2018 David popp
Berberis aquifolium
2006 Louis-M. Landry

Berberis aquifolium var. aquifolium    Oregon grape,  Piper's barberry
native
Shrub

BERBERIDACEAE

Berberis aquifolium var. aquifolium
2022 Bob Sweatt
Berberis aquifolium var. aquifolium
2022 Bob Sweatt
Berberis aquifolium var. aquifolium
2017 Steve Matson

Berberis aquifolium var. repens    Creeping oregon grape,  Dwarf mahonia
native
Shrub

BERBERIDACEAE

Berberis aquifolium var. repens
2021 Steve Matson
Berberis aquifolium var. repens
2021 Steve Matson
Berberis aquifolium var. repens
2013 James Gonsman

Berberis darwinii    Darwin's berberis
invasive non-native
Shrub

BERBERIDACEAE

Berberis darwinii
2018 Abbot Chambers
Berberis darwinii
2016 Greg O'Connell
Berberis darwinii
2022 David Strauch

Berberis nervosa    Cascades oregon grape,  Oregongrape
native
Shrub

BERBERIDACEAE

Berberis nervosa
2019 Hunter Breck
Berberis nervosa
2018 Gregory Arena
Berberis nervosa
2011 Steve Matson

Berberis pinnata    California barberry,  Coast barberry,  Shiny leaf mahonia
native
Shrub

BERBERIDACEAE

Berberis pinnata
2022 Alice Cummings
Berberis pinnata
2022 David Strauch
Berberis pinnata
2022 Julian Geoghegan

Bidens frondosa    Devil's beggartick,  Sticktight
native
Annual herb

ASTERACEAE

Bidens frondosa
2020 R.A. Chasey
Bidens frondosa
2020 Bob Sweatt
Bidens frondosa
2020 R.A. Chasey

Blechnum spicant    Deer fern
native
Fern

BLECHNACEAE

Blechnum spicant
2018 Hunter Breck
Blechnum spicant
2013 James Gonsman
Blechnum spicant
2021 Julie A. Kierstead

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

SAXIFRAGACEAE

Boykinia elata
2014 James Gonsman
Boykinia elata
2014 James Gonsman
Boykinia elata
2017 Hunter Breck

Boykinia major    Large boykinia,  Mountain boykinia,  Stream boykinia
native
Perennial herb

SAXIFRAGACEAE

Boykinia major
2021 Mike Russler
Boykinia major
2018 Julie Kierstead Nelson
Boykinia major
2021 Mike Russler

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

SAXIFRAGACEAE

Boykinia occidentalis
2014 James Gonsman
Boykinia occidentalis
2014 James Gonsman
Boykinia occidentalis
2017 Hunter Breck

Brassica campestris    Field mustard,  Turnip
invasive non-native
Annual herb

BRASSICACEAE

Brassica campestris
2017 Cynthia Powell
Brassica campestris
2008 Neal Kramer
Brassica campestris
2018 Angelique Herman

Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
2020 Diane Etchison
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
2017 Cynthia Powell
Brassica rapa
2008 Neal Kramer
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
2022 Alice Cummings
Briza minor
2019 Gary McDonald
Briza minor
2019 Gary McDonald

Brodiaea elegans    Harvest brodiaea
native
Perennial herb

THEMIDACEAE

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

Brodiaea ida-maia    Firecracker brodiaea,  Firecracker flower
native
Perennial herb

THEMIDACEAE

Brodiaea ida-maia
2020 Julie A. Kierstead
Brodiaea ida-maia
2015 John Doyen
Brodiaea ida-maia
2018 Emily Allen

Brodiaea terrestris    Dwarf brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea terrestris
2019 Diane Etchison
Brodiaea terrestris
2005 Ron Powell
Brodiaea terrestris
2019 Mary Gerbic

Bromus carinatus    California brome
native
Perennial grass

POACEAE

Bromus carinatus
2020 Ron Vanderhoff
Bromus carinatus
2021 Neal Kramer
Bromus carinatus
2020 Aaron Sunshine

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
2010 Neal Kramer

Bromus carinatus var. maritimus    Maritime brome
native
Perennial grass

POACEAE

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

Bromus catharticus var. elatus    Chilean brome
non-native
Annual, Perennial grass

POACEAE

Bromus catharticus var. elatus
2017 MCOSD EDRR
Bromus catharticus var. elatus
2006 Steve Matson
Bromus catharticus var. elatus
2017 MCOSD EDRR

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
2018 Gary McDonald
Bromus hordeaceus
2018 Gary McDonald
Bromus hordeaceus
2018 Gary McDonald

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

POACEAE

Bromus hordeaceus ssp. hordeaceus
2018 Gary McDonald
Bromus hordeaceus ssp. hordeaceus
2018 Gary McDonald
Bromus hordeaceus ssp. hordeaceus
2018 Gary McDonald

Bromus inermis ssp. inermis    Smooth brome
non-native
Perennial grass

POACEAE

Bromus inermis ssp. inermis
2011 Ramona Robison
Bromus inermis ssp. inermis
2019 Manzanita Dictionary
Bromus inermis ssp. inermis
2019 Manzanita Dictionary

non-native
Perennial grass

POACEAE

Bromus inermis ssp. inermis var. inermis
2011 Ramona Robison
Bromus inermis ssp. inermis var. inermis
2019 Manzanita Dictionary
Bromus inermis ssp. inermis var. inermis
2019 Manzanita Dictionary

Bromus maritimus    Maritime brome
native
Perennial grass

POACEAE

Bromus maritimus
2020 Ken Hickman
Bromus maritimus
2020 Michelle Karle
Bromus maritimus
2016 Richard Chasey

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

POACEAE

Bromus mollis
2018 Gary McDonald
Bromus mollis
2018 Gary McDonald
Bromus mollis
2018 Gary McDonald

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

POACEAE

Bromus sterilis
2021 John Rawlings
Bromus sterilis
2021 David popp
Bromus sterilis
2022 David popp

Bromus vulgaris    Columbia brome,  Common brome
native
Annual grass

POACEAE

Bromus vulgaris
2022 David Leyva
Bromus vulgaris
2020 Aaron Sunshine
Bromus vulgaris
2008 Zoya Akulova

Buddleja davidii    Butterfly bush,  Summer lilac
invasive non-native
Tree, Shrub

SCROPHULARIACEAE

Buddleja davidii
2021 Ron Vanderhoff
Buddleja davidii
2021 Ron Vanderhoff
Buddleja davidii
2011 Michael O'Brien

Buxus microphylla   


Cakile edentula    American searocket,  Sea rocket
non-native
Annual herb

BRASSICACEAE

Cakile edentula
2021 Friends of Five Creeks volunteers
Cakile edentula
2006 Louis-M. Landry
Cakile edentula
2010 Louis-M. Landry

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

BRASSICACEAE

Cakile maritima
2019 Diane Etchison
Cakile maritima
2014 James Gonsman
Cakile maritima
2019 Diane Etchison

Calamagrostis nutkaensis    Pacific reedgrass
native
Perennial grass

POACEAE

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

Calandrinia ciliata    red maids,  Calandrinia
native
Annual herb

MONTIACEAE

Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2021 Rebecca Nelson
Calandrinia ciliata
2019 Ron Vanderhoff

Callitriche heterophylla    Varied leaved water starwort,  Water starwort
native
Perennial herb

PLANTAGINACEAE

Callitriche heterophylla
2012 Ron Vanderhoff
Callitriche heterophylla
2008 Neal Kramer
Callitriche heterophylla
2005 Steve Matson

Callitriche heterophylla var. bolanderi    Bolander's water starwort
native
Annual herb

PLANTAGINACEAE

Callitriche heterophylla var. bolanderi
2005 Steve Matson
Callitriche heterophylla var. bolanderi
2005 Steve Matson
Callitriche heterophylla var. bolanderi
2008 Keir Morse

Callitriche stagnalis    Pond water starwort
non-native
Annual herb (aquatic)

PLANTAGINACEAE

Callitriche stagnalis
2010 Gerald Carr
Callitriche stagnalis
2010 Gerald Carr
Callitriche stagnalis
2020 Neal Kramer

Calochortus tolmiei    Hairy star tulip,  Tolmie star tulip,  Tolmie's star tulip
native
Perennial herb

LILIACEAE

Calochortus tolmiei
2020 Steve Conger
Calochortus tolmiei
2022 Jamie Spielmann
Calochortus tolmiei
2020 Mary Ann Machi

Caltha leptosepala    White marsh marigold
native
Perennial herb

RANUNCULACEAE

Caltha leptosepala
2016 Roy West
Caltha leptosepala
2019 Steve Matson
Caltha leptosepala
2021 Mike Russler

Caltha leptosepala var. biflora    White marsh marigold
native
Perennial herb

RANUNCULACEAE

Caltha leptosepala var. biflora
2016 Roy West
Caltha leptosepala var. biflora
2019 Steve Matson
Caltha leptosepala var. biflora
2021 Mike Russler

Calypso bulbosa    Fairy slipper,  Fairyslipper orchid
native
Perennial herb

ORCHIDACEAE

Calypso bulbosa
2020 Peter Warner
Calypso bulbosa
2018 Steve Laymon
Calypso bulbosa
2020 Emma Shelton

native
Perennial herb

ORCHIDACEAE

Calypso bulbosa var. occidentalis
2021 Nora Bales
Calypso bulbosa var. occidentalis
2018 Hunter Breck
Calypso bulbosa var. occidentalis
2018 Ken Hickman

Calystegia atriplicifolia    Nightblooming false bindweed
native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia atriplicifolia
2020 Lilyanne Price
Calystegia atriplicifolia
2020 Lilyanne Price
Calystegia atriplicifolia
2013 Demo5 Calflora

Calystegia atriplicifolia ssp. buttensis    Butte county morning glory
rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia atriplicifolia ssp. buttensis
2020 Lilyanne Price
Calystegia atriplicifolia ssp. buttensis
2008 John Dittes
Calystegia atriplicifolia ssp. buttensis
2008 Sierra Pacific Industries

Calystegia occidentalis ssp. occidentalis    Chaparral false bindweed,  Modoc morning glory,  Western morning glory
native
Perennial herb

CONVOLVULACEAE

Calystegia occidentalis ssp. occidentalis
2016 Steve Matson
Calystegia occidentalis ssp. occidentalis
2016 Steve Matson
Calystegia occidentalis ssp. occidentalis
2019 Chico Hiking Association

Calystegia soldanella    Beach morning glory,  Beach morningglory
native
Perennial herb

CONVOLVULACEAE

Calystegia soldanella
2020 David Greenberger
Calystegia soldanella
2021 Hayley Ross
Calystegia soldanella
2021 Hayley Ross

Camassia leichtlinii ssp. suksdorfii    Suksdorf's large camas
native
Perennial herb

AGAVACEAE

Camassia leichtlinii ssp. suksdorfii
2019 Chasey
Camassia leichtlinii ssp. suksdorfii
2019 David Greenberger
Camassia leichtlinii ssp. suksdorfii
2008 Keir Morse

Camellia japonica   


Camissonia cheiranthifolia    Beach evening-primrose
native
Perennial herb

ONAGRACEAE

Camissonia cheiranthifolia
2019 Patrick Furtado
Camissonia cheiranthifolia
2021 Meghan Lindt
Camissonia cheiranthifolia
2019 Ron Vanderhoff

native
Perennial herb

ONAGRACEAE

Camissonia cheiranthifolia ssp. cheiranthifolia
2019 Patrick Furtado
Camissonia cheiranthifolia ssp. cheiranthifolia
2021 Meghan Lindt
Camissonia cheiranthifolia ssp. cheiranthifolia
2019 Ron Vanderhoff

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 breweri var. breweri    Brewer's bitter cress,  Brewer's bittercress
native
Perennial herb

BRASSICACEAE

Cardamine breweri var. breweri
2005 Steve Matson
Cardamine breweri var. breweri
2020 Bob Sweatt
Cardamine breweri var. breweri
2005 Steve Matson

Cardamine californica    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

Cardamine californica
2020 Barbara Peck
Cardamine californica
2018 Lynn Sweet
Cardamine californica
2019 Ron Vanderhoff

Cardamine integrifolia    California toothwort,  milkmaids
native
Perennial herb

BRASSICACEAE

Cardamine integrifolia
2020 Barbara Peck
Cardamine integrifolia
2018 Lynn Sweet
Cardamine integrifolia
2019 Ron Vanderhoff

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

BRASSICACEAE

Cardamine oligosperma
2008 Steve Matson
Cardamine oligosperma
2013 Emily Wong
Cardamine oligosperma
2013 Ron Wolf

Cardionema ramosissimum    Sand mat,  Sandcarpet
native
Perennial herb

CARYOPHYLLACEAE

Cardionema ramosissimum
2019 Ken Hickman
Cardionema ramosissimum
2019 John Rawlings
Cardionema ramosissimum
2011 Neal Kramer

Carex aquatilis var. dives    Sitka sedge
native
Perennial grasslike herb

CYPERACEAE

Carex aquatilis var. dives
2003 Steve Matson
Carex aquatilis var. dives
2003 Steve Matson

Carex concinnoides    Northwestern sedge
native
Perennial grasslike herb

CYPERACEAE

Carex concinnoides
2015 Hayley Ross
Carex concinnoides
2015 Hayley Ross
Carex concinnoides
2015 Hayley Ross

Carex deweyana ssp. leptopoda    Slender-footed sedge
native
Perennial grasslike herb

CYPERACEAE

Carex deweyana ssp. leptopoda
2019 Mary Merriman
Carex deweyana ssp. leptopoda
2020 Ellen Uhler
Carex deweyana ssp. leptopoda
2021 Judy Schwartz

Carex dudleyi    Dense sedge,  Sedge
native
Perennial grasslike herb

CYPERACEAE

Carex dudleyi
2022 R.A. Chasey
Carex dudleyi
2022 R.A. Chasey
Carex dudleyi
2022 R.A. Chasey

Carex globosa    Round fruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex globosa
2014 Steve Matson
Carex globosa
2014 Steve Matson
Carex globosa
2021 John Rawlings

Carex hendersonii    Henderson's sedge
native
Perennial grasslike herb

CYPERACEAE

Carex hendersonii
2022 Sherry Adams
Carex hendersonii
2003 Steve Matson
Carex hendersonii
2007 Shawn DeCew

Carex leporina    Hare or oval sedge
native
Perennial grasslike herb

CYPERACEAE

Carex leporina
null
Carex leporina
2009 Chris Wagner
Carex leporina
2009 Chris Wagner

Carex leptopoda    Slender-footed sedge
native
Perennial grasslike herb

CYPERACEAE

Carex leptopoda
2019 Mary Merriman
Carex leptopoda
2020 Ellen Uhler
Carex leptopoda
2021 Judy Schwartz

Carex mendocinensis    Mendocino sedge
native
Perennial grasslike herb

CYPERACEAE

Carex mendocinensis
2021 R.A. Chasey
Carex mendocinensis
2021 R.A. Chasey
Carex mendocinensis
2021 R.A. Chasey

Carex obnupta    Coast carex,  Slough sedge
native
Perennial grasslike herb

CYPERACEAE

Carex obnupta
2017 Steve Matson
Carex obnupta
2019 MCOSD EDRR
Carex obnupta
2022 Zoya Akulova-Barlow

Carex ovalis    Hare or oval sedge
native
Perennial grasslike herb

CYPERACEAE

Carex ovalis
null
Carex ovalis
2009 Chris Wagner
Carex ovalis
2009 Chris Wagner

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

CYPERACEAE

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

Carex simulata    Analogue sedge,  Short beaked sedge
native
Perennial grasslike herb

CYPERACEAE

Carex simulata
2006 Steve Matson
Carex simulata
2017 Eric Wrubel, NPS
Carex simulata
2006 Steve Matson

Carex sitchensis    Sitka sedge
native
Perennial grasslike herb

CYPERACEAE

Carex sitchensis
2003 Steve Matson
Carex sitchensis
2003 Steve Matson

Carex stipata    Awlfruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex stipata
2002 Dean Wm. Taylor
Carex stipata
2008 Keir Morse
Carex stipata
2008 Keir Morse

Carex stipata var. stipata    Awl fruited sedge,  Owlfruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex stipata var. stipata
2008 Keir Morse
Carex stipata var. stipata
2002 Dean Wm. Taylor
Carex stipata var. stipata
2014 Trent M. Draper

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

Carpobrotus chilensis    Sea fig
invasive non-native
Perennial herb

AIZOACEAE

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

Castanopsis chrysophylla    Giant chinquapin,  Golden chinquapin
native
Tree, Shrub

FAGACEAE

Castanopsis chrysophylla
2019 Patrick Furtado
Castanopsis chrysophylla
2014 Richard Chasey
Castanopsis chrysophylla
2014 Richard Chasey

Castilleja affinis    Indian paintbrush
native
Perennial herb

OROBANCHACEAE

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

Castilleja affinis ssp. affinis    Coast indian paintbrush
native
Perennial herb

OROBANCHACEAE

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

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

OROBANCHACEAE

Castilleja attenuata
2018 Glen Schneider
Castilleja attenuata
2008 Steve Matson
Castilleja attenuata
2008 Steve Matson

Castilleja miniata ssp. elata    Siskiyou indian paintbrush
native
Perennial herb (hemiparasitic)

OROBANCHACEAE

Castilleja miniata ssp. elata
2018 Anna Sereno
Castilleja miniata ssp. elata
2018 Anna Sereno
Castilleja miniata ssp. elata
2018 Anna Sereno

Caucalis microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

Caucalis microcarpa
2021 Helen Hancock
Caucalis microcarpa
2022 R.A. Chasey
Caucalis microcarpa
2008 Keir Morse

Ceanothus pumilus    Dwarf ceanothus,  Siskiyou mat
native
Shrub

RHAMNACEAE

Ceanothus pumilus
2017 Steve Matson
Ceanothus pumilus
2017 Steve Matson
Ceanothus pumilus
2017 Steve Matson

Ceanothus thyrsiflorus    Blueblossom
native
Tree, Shrub

RHAMNACEAE

Ceanothus thyrsiflorus
2020 David Greenberger
Ceanothus thyrsiflorus
2020 R.A. Chasey
Ceanothus thyrsiflorus
2018 Rick Kuyper

Ceanothus velutinus var. hookeri    Tobacco brush, snowbrush
native
Tree, Shrub

RHAMNACEAE

Ceanothus velutinus var. hookeri
2020 Bob Sweatt
Ceanothus velutinus var. hookeri
2019 Susan McDougall
Ceanothus velutinus var. hookeri
2021 Mike Russler

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

ASTERACEAE

Centaurea melitensis
2019 Ron Vanderhoff
Centaurea melitensis
2012 Gary McDonald
Centaurea melitensis
2019 Arlee Montalvo

Centaurea stoebe ssp. micranthos    Spotted knapweed
invasive non-native
Perennial herb

ASTERACEAE

Centaurea stoebe ssp. micranthos
2021 Patrick Hoffman
Centaurea stoebe ssp. micranthos
2022 Patrick Hoffman
Centaurea stoebe ssp. micranthos
2019 Amanda Mills

Centaurium erythraea    Common centaury,  European centaury
non-native
Annual herb

GENTIANACEAE

Centaurium erythraea
2022 Robin Harper
Centaurium erythraea
2011 Ryan Batten
Centaurium erythraea
2010 Dr.Thomas K. Voekler

Centaurium floribundum    Muehlenberg's centaury
native
Annual herb

GENTIANACEAE

Centaurium floribundum
2019 Patrick Furtado
Centaurium floribundum
2015 James Gonsman
Centaurium floribundum
2008 Neal Kramer

Centaurium muehlenbergii    Muehlenberg's centaury
native
Annual herb

GENTIANACEAE

Centaurium muehlenbergii
2019 Patrick Furtado
Centaurium muehlenbergii
2015 James Gonsman
Centaurium muehlenbergii
2008 Neal Kramer

Centranthus ruber    Jupiter's beard,  Red valerian
non-native
Annual, Perennial herb

VALERIANACEAE

Centranthus ruber
2013 Zachary Mikalonis
Centranthus ruber
2022 Justin Felder
Centranthus ruber
2009 Neal Kramer

Cephalanthera austiniae    Phantom orchid
native
Perennial herb

ORCHIDACEAE

Cephalanthera austiniae
2018 Matt Berger
Cephalanthera austiniae
2006 Earl Nance
Cephalanthera austiniae
2020 Joey Santore

Cerastium arvense    Field chickweed,  Meadow chickweed
native
Perennial herb

CARYOPHYLLACEAE

Cerastium arvense
2019 Ken Hickman
Cerastium arvense
2019 John Rawlings
Cerastium arvense
2014 Steve Matson

Cerastium arvense ssp. strictum    Field chickweed
native
Perennial herb

CARYOPHYLLACEAE

Cerastium arvense ssp. strictum
2021 R.A. Chasey
Cerastium arvense ssp. strictum
2021 R.A. Chasey
Cerastium arvense ssp. strictum
2014 Robert Sikora

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

CARYOPHYLLACEAE

Cerastium glomeratum
2019 Diane Etchison
Cerastium glomeratum
2015 Chris Jaster
Cerastium glomeratum
2021 Steve Laymon

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

CARYOPHYLLACEAE

Cerastium viscosum
2019 Diane Etchison
Cerastium viscosum
2015 Chris Jaster
Cerastium viscosum
2021 Steve Laymon

Ceratophyllum demersum    Coon's tail,  Hornwort
native
Perennial herb

CERATOPHYLLACEAE

Ceratophyllum demersum
2018 Ron Vanderhoff
Ceratophyllum demersum
2018 Ron Vanderhoff
Ceratophyllum demersum
2022 Donald Burk

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

ROSACEAE

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

Chamaecyparis lawsoniana    Port orford cedar
native
Tree

CUPRESSACEAE

Chamaecyparis lawsoniana
2021 Julie A. Kierstead
Chamaecyparis lawsoniana
2018 Julie Kierstead Nelson
Chamaecyparis lawsoniana
2000 John Game

native
Perennial herb

ONAGRACEAE

Chamerion angustifolium ssp. circumvagum
2022 Mike Russler
Chamerion angustifolium ssp. circumvagum
2022 Mike Russler
Chamerion angustifolium ssp. circumvagum
2022 Mike Russler

Cheilanthes gracillima    Lace lip fern
native
Fern

PTERIDACEAE

Cheilanthes gracillima
2021 John Rawlings
Cheilanthes gracillima
2021 R.A. Chasey
Cheilanthes gracillima
2021 Steve Matson

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

CHENOPODIACEAE

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

Chimaphila menziesii    Little prince's pine,  Pipsissewa
native
Perennial herb

ERICACEAE

Chimaphila menziesii
2006 Steve Matson
Chimaphila menziesii
2019 Chico Hiking Association
Chimaphila menziesii
2019 Jacob Smith

Chimaphila umbellata    Blake's prince's pine,  Pipsissewa,  Prince's Pine
native
Perennial herb

ERICACEAE

Chimaphila umbellata
2021 Steve Conger
Chimaphila umbellata
2022 Glenn Fine
Chimaphila umbellata
2019 Matt Berger

Chimaphila umbellata ssp. occidentalis    Blake's prince's pine,  Pipsissewa,  Prince's Pine
native
Perennial herb

ERICACEAE

Chimaphila umbellata ssp. occidentalis
2021 Steve Conger
Chimaphila umbellata ssp. occidentalis
2022 Glenn Fine
Chimaphila umbellata ssp. occidentalis
2019 Matt Berger

Chlorogalum pomeridianum    Amole,  Soap plant,  Soaproot
native
Perennial herb

AGAVACEAE

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

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

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum
2015 Sharon King & Randy Aeschliman
Chlorogalum pomeridianum var. pomeridianum
2003 George Jackson
Chlorogalum pomeridianum var. pomeridianum
2018 Karen Scheuermann

Chrysanthemum leucanthemum    Oxe eye daisy,  Oxeye daisy
invasive non-native
Perennial herb

ASTERACEAE

Chrysanthemum leucanthemum
2020 Kim Cabrera
Chrysanthemum leucanthemum
2019 Julian Geoghegan
Chrysanthemum leucanthemum
2017 James Gonsman

Chrysolepis chrysophylla    Giant chinquapin,  Golden chinquapin
native
Tree, Shrub

FAGACEAE

Chrysolepis chrysophylla
2020 Mary Conway
Chrysolepis chrysophylla
2020 Aaron Sunshine
Chrysolepis chrysophylla
2022 Jamie Spielmann

Chrysolepis chrysophylla var. minor    Bush chinquapin,  Giant chinquapin
native
Tree, Shrub

FAGACEAE

Chrysolepis chrysophylla var. minor
2020 R.A. Chasey
Chrysolepis chrysophylla var. minor
2019 Ken Hickman
Chrysolepis chrysophylla var. minor
2009 Neal Kramer

Chrysosplenium glechomifolium    Pacific golden saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Chrysosplenium glechomifolium
2013 James Gonsman
Chrysosplenium glechomifolium
2021 Dillon Doss
Chrysosplenium glechomifolium
2014 Dana York

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

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

Circaea alpina ssp. pacifica    Pacific enchanter's nightshade,  Small enchanter's nightshade
native
Perennial herb

ONAGRACEAE

Circaea alpina ssp. pacifica
2003 Steve Matson
Circaea alpina ssp. pacifica
2018 Julie Kierstead Nelson
Circaea alpina ssp. pacifica
2018 Julie Kierstead Nelson

Cirsium acanthodontum    Few leaved thistle,  Fewleaf thistle
native
Perennial herb

ASTERACEAE

Cirsium acanthodontum
2008 Gerald Carr
Cirsium acanthodontum
2011 Gerald Carr
Cirsium acanthodontum
2017 Hunter Breck

Cirsium arvense    Canada thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium arvense
2012 Michael Mitchell
Cirsium arvense
2012 Michael Mitchell
Cirsium arvense
2022 Donald Burk

Cirsium brevistylum    Clustered thistle,  Indian thistle
native
Perennial herb

ASTERACEAE

Cirsium brevistylum
2019 Steve Davison
Cirsium brevistylum
2018 Brian Charles
Cirsium brevistylum
2007 Neal Kramer

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

ASTERACEAE

Cirsium occidentale var. venustum
2020 Stacie Wolny
Cirsium occidentale var. venustum
2010 James M. Andre
Cirsium occidentale var. venustum
2020 Sara Timby

Cirsium pastoris    Snowy thistle
native
Perennial herb

ASTERACEAE

Cirsium pastoris
2020 R.A. Chasey
Cirsium pastoris
2019 Matt Berger
Cirsium pastoris
2018 Debra Valov

Cirsium proteanum    Cobwebby thistle,  Red thistle,  Venus thistle
native
Perennial herb

ASTERACEAE

Cirsium proteanum
2020 Stacie Wolny
Cirsium proteanum
2010 James M. Andre
Cirsium proteanum
2020 Sara Timby

Cirsium remotifolium    Few leaved thistle,  Fewleaf thistle
native
Perennial herb

ASTERACEAE

Cirsium remotifolium
2008 Gerald Carr
Cirsium remotifolium
2011 Gerald Carr
Cirsium remotifolium
2017 Hunter Breck

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
2017 James Bailey
Cirsium vulgare
2019 Gustavo Vasquez
Cirsium vulgare
2020 Bob Sweatt

Clarkia amoena    Farewell to spring
native
Annual herb

ONAGRACEAE

Clarkia amoena
2018 Anna Sereno
Clarkia amoena
2019 Steve Conger
Clarkia amoena
2011 Barry Breckling

Clarkia amoena ssp. amoena    Farewell to spring
native
Annual herb

ONAGRACEAE

Clarkia amoena ssp. amoena
2020 Steve Laymon
Clarkia amoena ssp. amoena
2020 Steve Laymon
Clarkia amoena ssp. amoena
2015 James Gonsman

Clarkia purpurea    Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea
2019 Ron Vanderhoff
Clarkia purpurea
2019 Stacie Wolny
Clarkia purpurea
2004 Norman Jensen

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

ONAGRACEAE

Clarkia purpurea ssp. quadrivulnera
2020 Steve Laymon
Clarkia purpurea ssp. quadrivulnera
2021 Ron Vanderhoff
Clarkia purpurea ssp. quadrivulnera
2018 Gary McDonald

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

MONTIACEAE

Claytonia perfoliata
2020 Ron Vanderhoff
Claytonia perfoliata
2015 Richard Chasey
Claytonia perfoliata
2022 Mike Russler

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

MONTIACEAE

Claytonia sibirica
2017 Steve Matson
Claytonia sibirica
2017 Steve Matson
Claytonia sibirica
2015 James Gonsman

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

MONTIACEAE

Claytonia sibirica var. sibirica
2017 Steve Matson
Claytonia sibirica var. sibirica
2017 Steve Matson
Claytonia sibirica var. sibirica
2015 James Gonsman

Claytonia washingtoniana    Suksdorf's spring beauty,  Washington springbeauty
native
Annual herb

MONTIACEAE

Claytonia washingtoniana
2010 Gerald Carr
Claytonia washingtoniana
2010 Gerald Carr
Claytonia washingtoniana
2010 Gerald Carr

Clematis ligusticifolia    Creek clematis,  Western virgin's bower,  Western white clematis
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

Clintonia andrewsiana    Andrew's clintonia,  Blue bead lily,  Red clintonia
native
Perennial herb

LILIACEAE

Clintonia andrewsiana
2013 Janet Herringshaw
Clintonia andrewsiana
2018 George Osner
Clintonia andrewsiana
2013 Paul Preston

Collinsia linearis    Narrow leaf collinsia,  Narrowleaf blue eyed mary
native
Annual herb

PLANTAGINACEAE

Collinsia linearis
2022 Dana York
Collinsia linearis
2022 Dana York
Collinsia linearis
2008 Keir Morse

Collomia heterophylla    Variableleaf collomia,  Varied leaved collomia
native
Annual herb

POLEMONIACEAE

Collomia heterophylla
2018 Stacie Wolny
Collomia heterophylla
2019 Mary Conway
Collomia heterophylla
2020 Jennifer Mo

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
2019 James Bailey
Conium maculatum
2013 Toni Corelli
Conium maculatum
2020 Nancy Hamlett

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

CONVOLVULACEAE

Convolvulus arvensis
2019 Ron Vanderhoff
Convolvulus arvensis
2021 Ron Vanderhoff
Convolvulus arvensis
2005 Steve Matson

Coptis laciniata    Oregon golden thread,  Oregon goldthread
rare native
Perennial herb

RANUNCULACEAE

Coptis laciniata
2016 Spade Natural Resources Consulting
Coptis laciniata
2006 David McClurg
Coptis laciniata
2008 Sierra Pacific Industries

Corallorhiza maculata    Spotted coralroot,  Summer coral root,  Summer coralroot
native
Perennial herb

ORCHIDACEAE

Corallorhiza maculata
2019 Jane Cohn
Corallorhiza maculata
2022 Mary Sue Ittner
Corallorhiza maculata
2018 Rick Wachs

Corallorhiza mertensiana    Merten's coral root,  Pacific coralroot
native
Perennial herb

ORCHIDACEAE

Corallorhiza mertensiana
2021 John L. Thompson
Corallorhiza mertensiana
2018 Julie Kierstead Nelson
Corallorhiza mertensiana
2022 Mary Sue Ittner

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 tenuis ssp. viscidus    Slender bird's beak,  Sticky bird's beak,  Viscid bird's beak
native
Annual herb

OROBANCHACEAE

Cordylanthus tenuis ssp. viscidus
2020 Jane Cohn
Cordylanthus tenuis ssp. viscidus
2005 Norman Jensen
Cordylanthus tenuis ssp. viscidus
2016 Jason Matthias Mills

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
2022 Mike Russler
Corethrogyne filaginifolia
2018 Ron Vanderhoff
Corethrogyne filaginifolia
2021 Mike Russler

Cornus capitata   


Cornus glabrata    Brown dogwood
native
Tree, Shrub

CORNACEAE

Cornus glabrata
2021 Donald Burk
Cornus glabrata
2020 Susan McDougall
Cornus glabrata
2019 Richard Spjut

Cornus nuttallii    Mountain dogwood,  Pacific dogwood,  Pacific mountain dogwood
native
Shrub

CORNACEAE

Cornus nuttallii
2018 Matt Berger
Cornus nuttallii
2017 David popp
Cornus nuttallii
2019 Janith Johnson

Cornus sericea    American dogwood,  Creek dogwood,  Redosier dogwood
native
Shrub

CORNACEAE

Cornus sericea
2018 Hayley Ross
Cornus sericea
2016 Suzanne L. Weakley
Cornus sericea
2018 Hayley Ross

Cornus sericea ssp. occidentalis    Western dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. occidentalis
2019 David Greenberger
Cornus sericea ssp. occidentalis
2018 Lynn Overtree
Cornus sericea ssp. occidentalis
2020 Susan McDougall

Cornus sessilis    Blackfruit dogwood,  Miners dogwood,  Western cornelian cherry
native
Tree

CORNACEAE

Cornus sessilis
2019 Bill Haley
Cornus sessilis
2019 Belinda Lo
Cornus sessilis
2012 Belinda Lo

Cortaderia jubata    Pampas grass,  Purple pampas grass
invasive non-native
Perennial grass

POACEAE

Cortaderia jubata
2018 Ramona Robison
Cortaderia jubata
2021 Michelle Karle
Cortaderia jubata
2018 Ramona Robison

Corylus cornuta    Beaked hazelnut
native
Shrub

BETULACEAE

Corylus cornuta
2017 John Game
Corylus cornuta
2018 MCOSD EDRR
Corylus cornuta
2019 Belinda Lo

Corylus cornuta ssp. californica    Beaked hazelnut
native
Shrub

BETULACEAE

Corylus cornuta ssp. californica
2015 Robert Steers
Corylus cornuta ssp. californica
2017 John Game
Corylus cornuta ssp. californica
2019 Belinda Lo

Cotoneaster franchetii    Cotoneaster,  Francheti cotoneaster,  Orange cotoneaster
invasive non-native
Shrub

ROSACEAE

Cotoneaster franchetii
2021 Cynthia Powell
Cotoneaster franchetii
2021 Lenihan Mazur
Cotoneaster franchetii
2019 Lenihan Mazur

Cotoneaster integrifolius    Entire-leaved cotoneaster
non-native
Shrub

ROSACEAE

Cotoneaster integrifolius
2021 R.A. Chasey
Cotoneaster integrifolius
2021 David Greenberger
Cotoneaster integrifolius
2006 Peter Zika

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

ROSACEAE

Cotoneaster pannosus
2021 David Wolfson
Cotoneaster pannosus
2006 Peter Zika
Cotoneaster pannosus
2019 Cynthia Powell

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

ASTERACEAE

Cotula australis
2020 Ron Vanderhoff
Cotula australis
2022 Ron Vanderhoff
Cotula australis
2022 Ron Vanderhoff

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

ASTERACEAE

Cotula coronopifolia
2016 Chris Leslie
Cotula coronopifolia
2018 Cynthia Powell
Cotula coronopifolia
2018 Bill Schmidt

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 capillaris    Hawksbeard,  Smooth hawk's beard,  Smooth hawksbeard
non-native
Annual, Perennial herb

ASTERACEAE

Crepis capillaris
2019 Randy Huey
Crepis capillaris
2020 Jennifer Mo
Crepis capillaris
2019 Randy Huey

Crocosmia Xcrocosmiiflora    Coppertips,  Montbretia,  Falling stars
invasive non-native
Perennial herb

IRIDACEAE

Crocosmia Xcrocosmiiflora
2014 Andrea Williams
Crocosmia Xcrocosmiiflora
2019 Lenihan Mazur
Crocosmia Xcrocosmiiflora
2014 Andrew Georgeades

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

POACEAE

Crypsis schoenoides
2017 Ron Vanderhoff
Crypsis schoenoides
2021 Cynthia Powell
Crypsis schoenoides
2018 Ron Vanderhoff

Cryptantha leiocarpa    Coast cryptantha,  Coastal cryptantha,  Popcorn flower
native
Annual herb

BORAGINACEAE

Cryptantha leiocarpa
2017 Steve Matson
Cryptantha leiocarpa
2017 Steve Matson
Cryptantha leiocarpa
2021 John Rawlings

Cupressus lawsoniana    Port orford cedar
native
Tree

CUPRESSACEAE

Cupressus lawsoniana
2021 Julie A. Kierstead
Cupressus lawsoniana
2018 Julie Kierstead Nelson
Cupressus lawsoniana
2000 John Game

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

CONVOLVULACEAE

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

Cymbalaria muralis    Kenilworth ivy
non-native
Annual, Perennial herb

PLANTAGINACEAE

Cymbalaria muralis
2022 David Wolfson
Cymbalaria muralis
2017 James Bailey
Cymbalaria muralis
2014 Toni Corelli

Cynoglossum grande    Adelinia
native
Perennial herb

BORAGINACEAE

Cynoglossum grande
2019 Eliezer Margolis
Cynoglossum grande
2020 Pete Veilleux
Cynoglossum grande
2022 R.A. Chasey

Cynosurus cristatus    Crested dogstail grass,  Crested dogtail grass
non-native
Perennial grass

POACEAE

Cynosurus cristatus
2010 Zoya Akulova
Cynosurus cristatus
2010 Zoya Akulova
Cynosurus cristatus
2016 Zoya Akulova

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

POACEAE

Cynosurus echinatus
2010 Julie A. Kierstead
Cynosurus echinatus
2010 Julie A. Kierstead
Cynosurus echinatus
2019 Gary McDonald

Cyperus   


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 niger    Black cyperus,  Black flatsedge,  Brown cyperus
native
Perennial grasslike herb

CYPERACEAE

Cyperus niger
2020 Ron Vanderhoff
Cyperus niger
2021 Ron Vanderhoff
Cyperus niger
2021 Ron Vanderhoff

Cypripedium californicum    California lady's slipper
rare native
Perennial herb (rhizomatous)

ORCHIDACEAE

Cypripedium californicum
2019 Judy Fenerty
Cypripedium californicum
2017 Steve Matson
Cypripedium californicum
2018 Margarita Orlova

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

CYSTOPTERIDACEAE

Cystopteris fragilis
2020 Bob Sweatt
Cystopteris fragilis
2021 Mike Russler
Cystopteris fragilis
2005 Steve Matson

Cytisus multiflorus    Spanish broom,  White spanishbroom
invasive non-native
Shrub

FABACEAE

Cytisus multiflorus
2014 Patrick Congdon
Cytisus multiflorus
2020 Lenihan Mazur
Cytisus multiflorus
2020 Lenihan Mazur

Cytisus scoparius    Scotch broom,  Scotchbroom
invasive non-native
Shrub

FABACEAE

Cytisus scoparius
2016 Steve Matson
Cytisus scoparius
2017 Bill Bogdanoff
Cytisus scoparius
2016 Steve Matson

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

POACEAE

Dactylis glomerata
2018 Jennifer Mo
Dactylis glomerata
2021 R.A. Chasey
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
2022 Justin Luong

Daucus carota    Queen anne's lace,  Wild carrot
invasive non-native
Perennial herb

APIACEAE

Daucus carota
2021 Jennifer Mo
Daucus carota
2021 Charles Russell
Daucus carota
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

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

Delphinium decorum    Coast larkspur,  Coastal larkspur,  Larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium decorum
2015 BOB CASE
Delphinium decorum
2021 Mary Ann Machi
Delphinium decorum
2021 Steve Matson

Delphinium decorum ssp. tracyi    Coastal larkspur,  Tracy's larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium decorum ssp. tracyi
2022 Dana York
Delphinium decorum ssp. tracyi
2022 Dana York
Delphinium decorum ssp. tracyi
2021 Steve Matson

Delphinium nudicaule    Canyon larkspur,  Red or Orange Larkspur,  Red larkspur
native
Perennial herb

RANUNCULACEAE

Delphinium nudicaule
2020 Wendell Love
Delphinium nudicaule
2014 Stephen Rosenthal
Delphinium nudicaule
2018 Ken Lunders

Delphinium trolliifolium    Columbian larkspur,  Cow poison
native
Perennial herb

RANUNCULACEAE

Delphinium trolliifolium
2005 Jerry Murray
Delphinium trolliifolium
2006 Matt Below
Delphinium trolliifolium
2005 Jerry Murray

Deschampsia caespitosa    California hairgrass,  Tufted hair grass,  Tufted hairgrass
native
Perennial grass

POACEAE

Deschampsia caespitosa
2022 Justin Luong
Deschampsia caespitosa
2022 Dianne Lake
Deschampsia caespitosa
2022 Dianne Lake

Deschampsia cespitosa ssp. cespitosa    Tufted hair grass,  Tufted hairgrass
native
Perennial grass

POACEAE

Deschampsia cespitosa ssp. cespitosa
2020 John Rawlings
Deschampsia cespitosa ssp. cespitosa
2022 Dianne Lake
Deschampsia cespitosa ssp. cespitosa
2008 Keir Morse

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

Deschampsia danthonioides
2003 Steve Matson
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
2009 Adonis (Don) Tate

Dicentra formosa    Pacific bleeding heart,  Pacific bleedinghearts
native
Perennial herb

PAPAVERACEAE

Dicentra formosa
2020 Tamia Marg
Dicentra formosa
2018 Matt Berger
Dicentra formosa
2021 Mike Russler

Dichelostemma capitatum    Blue dicks
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
2020 Bryant Baker
Dichelostemma capitatum
2020 Bryant Baker
Dichelostemma capitatum
2020 Cheryl Ballantyne

Dichelostemma congestum    Fork toothed ookow,  Ookow
native
Perennial herb

THEMIDACEAE

Dichelostemma congestum
2017 Gary Morgret
Dichelostemma congestum
2019 Suzanne L. Weakley
Dichelostemma congestum
2020 Jean Anderson

Dichelostemma ida-maia    Firecracker brodiaea,  Firecracker flower
native
Perennial herb

THEMIDACEAE

Dichelostemma ida-maia
2020 Julie A. Kierstead
Dichelostemma ida-maia
2015 John Doyen
Dichelostemma ida-maia
2018 Emily Allen

Dichelostemma Xvenustum    Rose firecracker flower
native
Perennial herb

THEMIDACEAE

Dichelostemma Xvenustum
2017 Tanya Chapple
Dichelostemma Xvenustum
2022 Jamie Spielmann
Dichelostemma Xvenustum
2017 Tanya Chapple

Digitalis purpurea    Purple foxglove
invasive non-native
Perennial herb

PLANTAGINACEAE

Digitalis purpurea
2022 Mike Russler
Digitalis purpurea
2018 Lindsay T. Cook
Digitalis purpurea
2020 Woody Elliott

Dipsacus fullonum    Fuller's teasel,  Fullers' teasel,  Wild teasel
invasive non-native
Perennial herb

DIPSACACEAE

Dipsacus fullonum
2022 Morgan Stickrod
Dipsacus fullonum
2017 MCOSD Restoration Crew
Dipsacus fullonum
2021 Amber Bedgood

Disporum smithii    Largeflower fairybells
native
Perennial herb

LILIACEAE

Disporum smithii
2022 Zoya Akulova-Barlow
Disporum smithii
2021 Julie A. Kierstead
Disporum smithii
2020 Susan McDougall

Dodecatheon hendersonii    Mosquito bill
native
Perennial herb

PRIMULACEAE

Dodecatheon hendersonii
2020 BLM Redding Field Office
Dodecatheon hendersonii
2015 Susan McDougall
Dodecatheon hendersonii
2017 John Game

native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. glandulosa
2020 Diane Etchison
Drymocallis glandulosa var. glandulosa
2017 Steve Matson
Drymocallis glandulosa var. glandulosa
2021 Mike Russler

Drymocallis glandulosa var. reflexa    Sticky cinquefoil
native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. reflexa
2015 Barry Breckling
Drymocallis glandulosa var. reflexa
2003 Yulan Tong
Drymocallis glandulosa var. reflexa
2016 John Doyen

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

DRYOPTERIDACEAE

Dryopteris arguta
2022 David Strauch
Dryopteris arguta
2004 Brent Miller
Dryopteris arguta
2019 Rebecca Crowe

Dryopteris expansa    Common wood fern,  Spreading wood fern,  Spreading woodfern
native
Fern

DRYOPTERIDACEAE

Dryopteris expansa
2019 Stella Yang
Dryopteris expansa
1995 Saint Mary's College of California
Dryopteris expansa
2009 Phil Pullen

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

CRASSULACEAE

Dudleya farinosa
2022 Mike Russler
Dudleya farinosa
2019 Amy Rapport
Dudleya farinosa
2022 Mike Russler

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 botrys    Jerusalem oak goosefoot
non-native
Annual herb

CHENOPODIACEAE

Dysphania botrys
2022 Steve Matson
Dysphania botrys
2022 Steve Matson
Dysphania botrys
2017 Adam Chasey

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

CYPERACEAE

Eleocharis macrostachya
2022 Ken-ichi Ueda
Eleocharis macrostachya
2004 Carol W. Witham
Eleocharis macrostachya
2003 Steve Matson

Eleocharis parvula    Dwarf spikerush,  Small spikerush
rare native
Perennial grasslike herb

CYPERACEAE

Eleocharis parvula
2020 Ron Vanderhoff
Eleocharis parvula
2020 Ron Vanderhoff
Eleocharis parvula
2020 Ron Vanderhoff

Elodea canadensis    Canadian waterweed,  Common water weed,  Elodea
native
Perennial herb

HYDROCHARITACEAE

Elodea canadensis
2000 Bob Sweatt
Elodea canadensis
2019 David popp
Elodea canadensis
2020 R.A. Chasey

Elymus caput-medusae    Medusa head
invasive non-native
Annual grass

POACEAE

Elymus caput-medusae
2019 Amanda Mills
Elymus caput-medusae
2019 Jennifer Mo
Elymus caput-medusae
2020 Thomas Reyes

Elymus glaucus    Blue wildrye
native
Perennial grass

POACEAE

Elymus glaucus
2020 Denise Defreese
Elymus glaucus
2019 Patrick Furtado
Elymus glaucus
2018 Cynthia Powell

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

POACEAE

Elymus glaucus ssp. virescens
2017 Ron Vanderhoff
Elymus glaucus ssp. virescens
2012 Toni Corelli
Elymus glaucus ssp. virescens
2012 Toni Corelli

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

POACEAE

Elymus mollis ssp. mollis
2021 Ramona Robison
Elymus mollis ssp. mollis
2021 Ramona Robison
Elymus mollis ssp. mollis
2009 Toni Corelli

Elymus spicatus    Blue bunch wheat grass
native
Perennial grass

POACEAE

Elymus spicatus
2013 Robert L. Carr
Elymus spicatus
2013 Robert L. Carr
Elymus spicatus
2013 Robert L. Carr

Elymus trachycaulus    Slender wheatgrass
native
Perennial grass

POACEAE

Elymus trachycaulus
2021 Julian Geoghegan
Elymus trachycaulus
2016 Andrew Longman
Elymus trachycaulus
2020 Diana Wahl

Elymus trachycaulus ssp. trachycaulus    Slender wheatgrass
native
Perennial grass

POACEAE

Elymus trachycaulus ssp. trachycaulus
2022 John Rawlings
Elymus trachycaulus ssp. trachycaulus
2019 Ken Hickman
Elymus trachycaulus ssp. trachycaulus
2019 Ken Hickman

Enemion stipitatum    Siskiyou false rue anemone
native
Perennial herb

RANUNCULACEAE

Enemion stipitatum
2021 Steve Laymon
Enemion stipitatum
2020 Steve Laymon
Enemion stipitatum
2008 Keir Morse

Epilobium angustifolium    Fireweed
native
Perennial herb

ONAGRACEAE

Epilobium angustifolium
2019 Mikayla Loucks
Epilobium angustifolium
2020 Joey Santore
Epilobium angustifolium
2021 Mary Ann Machi

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

ONAGRACEAE

Epilobium brachycarpum
2015 Ron Vanderhoff
Epilobium brachycarpum
2019 Ramona Robison
Epilobium brachycarpum
2020 Ron Vanderhoff

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

ONAGRACEAE

Epilobium ciliatum
2021 stephen rosenthal
Epilobium ciliatum
2012 Ron Vanderhoff
Epilobium ciliatum
2019 Gary McDonald

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 Gary McDonald

Epilobium ciliatum ssp. watsonii    Fringed willowherb,  Watson's willowherb,  Willow herb
native
Perennial herb

ONAGRACEAE

Epilobium ciliatum ssp. watsonii
2012 BOB CASE
Epilobium ciliatum ssp. watsonii
2012 BOB CASE
Epilobium ciliatum ssp. watsonii
2021 Jamie Spielmann

Epilobium halleanum    Hall's willowherb
native
Perennial herb

ONAGRACEAE

Epilobium halleanum
2005 Steve Matson
Epilobium halleanum
2010 Steve Matson
Epilobium halleanum
2010 Steve Matson

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 Julian Geoghegan

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 laevigatum    Horsetail,  Smooth horsetail,  Smooth scouring rush
native
Fern

EQUISETACEAE

Equisetum laevigatum
2020 David popp
Equisetum laevigatum
2021 Ron Vanderhoff
Equisetum laevigatum
2021 Richard Spjut

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

EQUISETACEAE

Equisetum telmateia ssp. braunii
2011 Toni Corelli
Equisetum telmateia ssp. braunii
2021 Bryant Baker
Equisetum telmateia ssp. braunii
2021 Bryant Baker

Erechtites arguta    Cutleaf burnweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Erechtites arguta
2015 Lynn Overtree
Erechtites arguta
2020 Diana Wahl
Erechtites arguta
2021 Mary Conway

Erica lusitanica    Spanish heather
invasive non-native
Shrub

ERICACEAE

Erica lusitanica
2021 Patrick Hoffman
Erica lusitanica
2022 Patrick Hoffman
Erica lusitanica
2022 Patrick Hoffman

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    Leafy daisy,  Leafy fleabane
native
Perennial herb

ASTERACEAE

Erigeron foliosus
2022 Ryan O'Dell
Erigeron foliosus
2022 Irene Rosen
Erigeron foliosus
2019 Ron Vanderhoff

Erigeron foliosus var. hartwegii    Hartweg's fleabane
native
Perennial herb

ASTERACEAE

Erigeron foliosus var. hartwegii
2016 Steve Matson
Erigeron foliosus var. hartwegii
2016 Steve Matson
Erigeron foliosus var. hartwegii
2019 David Greenberger

Erigeron glaucus    Seaside daisy,  Seaside fleabane
native
Perennial herb

ASTERACEAE

Erigeron glaucus
2021 Zoya Akulova-Barlow
Erigeron glaucus
2019 James Gonsman
Erigeron glaucus
2018 Hilary Tayeb

Erigeron inornatus    California rayless daisy,  California rayless fleabane,  Western Rayless Fleabane
native
Perennial herb

ASTERACEAE

Erigeron inornatus
2006 Steve Matson
Erigeron inornatus
2006 Steve Matson
Erigeron inornatus
2006 Steve Matson

Erigeron inornatus var. inornatus    California rayless daisy,  California rayless fleabane,  Fleabane
native
Perennial herb

ASTERACEAE

Erigeron inornatus var. inornatus
2020 Bob Sweatt
Erigeron inornatus var. inornatus
2020 R.A. Chasey
Erigeron inornatus var. inornatus
2014 John Doyen

Erigeron philadelphicus    Philadelphia fleabane
native
Perennial herb

ASTERACEAE

Erigeron philadelphicus
2022 Dana York
Erigeron philadelphicus
2021 R.A. Chasey
Erigeron philadelphicus
null

Erigeron reductus var. reductus    California rayless daisy,  Lesser california rayless fleabane
native
Perennial herb

ASTERACEAE

Erigeron reductus var. reductus
2017 Chelsea Morgan
Erigeron reductus var. reductus
2001 Dean Wm. Taylor
Erigeron reductus var. reductus
2007 Dean Wm. Taylor, Ph.D.

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

POLYGONACEAE

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

Eriogonum nudum    Naked buckwheat,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum
2020 Stacie Wolny
Eriogonum nudum
2020 Stacie Wolny
Eriogonum nudum
2020 Stacie Wolny

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

POLYGONACEAE

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

Eriogonum nudum var. oblongifolium    Naked buckwheat,  Oblong leaved buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum var. oblongifolium
2016 Steve Matson
Eriogonum nudum var. oblongifolium
2016 Steve Matson
Eriogonum nudum var. oblongifolium
2016 Steve Matson

Eriophyllum lanatum    Common woolly sunflower,  Common woollysunflower,  Wooly sunflower
native
Perennial herb

ASTERACEAE

Eriophyllum lanatum
2021 Don Hollander
Eriophyllum lanatum
2022 Mike Russler
Eriophyllum lanatum
2022 R.A. Chasey

Eriophyllum lanatum var. achilleoides    Yarrow leaved woolly sunflower
native
Perennial herb

ASTERACEAE

Eriophyllum lanatum var. achilleoides
2019 Susan McDougall
Eriophyllum lanatum var. achilleoides
2011 Neal Kramer
Eriophyllum lanatum var. achilleoides
2019 Susan McDougall

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

ASTERACEAE

Eriophyllum staechadifolium
2020 Susan McDougall
Eriophyllum staechadifolium
2019 Mary Conway
Eriophyllum staechadifolium
2014 James Gonsman

Eriophyllum stoechadifolium var. artemisiifolium   


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

GERANIACEAE

Erodium botrys
2014 Bryan Derr
Erodium botrys
2017 Gary McDonald
Erodium botrys
2015 Ken Lunders

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
2020 Julia Markey
Erodium cicutarium
2022 Steve Matson

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
2018 Janith Johnson
Erysimum capitatum
2007 Thomas Stoughton
Erysimum capitatum
2021 Cyril Guyot

Erysimum capitatum ssp. capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum ssp. capitatum
2018 Janith Johnson
Erysimum capitatum ssp. capitatum
2007 Thomas Stoughton
Erysimum capitatum ssp. capitatum
2021 Cyril Guyot

Erythronium californicum    California fawn lily,  California fawnlily
native
Perennial herb (bulb)

LILIACEAE

Erythronium californicum
2019 Jeff Bisbee
Erythronium californicum
2020 Chris Else
Erythronium californicum
2020 Susan McDougall

Erythronium oregonum    Giant white fawnlily,  Oregon fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium oregonum
2019 Kolby Lundgren
Erythronium oregonum
2011 Steven Thorsted
Erythronium oregonum
2019 Kolby Lundgren

Erythronium revolutum    Mahogany fawn lily
rare native
Perennial herb (bulb)

LILIACEAE

Erythronium revolutum
2021 Steve Conger
Erythronium revolutum
2021 Mary Ann Machi
Erythronium revolutum
2015 John Doyen

Escallonia rubra    Red claws
non-native
Shrub

GROSSULARIACEAE

Escallonia rubra
2014 Gerald Carr
Escallonia rubra
2014 Ramona Robison
Escallonia rubra
2014 Gerald Carr

Eschscholzia californica    California poppy
native
Annual, Perennial herb

PAPAVERACEAE

Eschscholzia californica
2020 adam crisis
Eschscholzia californica
2009 Barry Rice
Eschscholzia californica
2020 Benjamin Gould

rare native
Perennial herb

PAPAVERACEAE

Eschscholzia californica ssp. californica
2019 Mary Conway
Eschscholzia californica ssp. californica
2019 Mary Conway
Eschscholzia californica ssp. californica
2019 Mary Conway

Eucalyptus pulverulenta    Money tree,  Silverleaf mountain gum
non-native
Tree

MYRTACEAE

Eucalyptus pulverulenta
2012 David Varner
Eucalyptus pulverulenta
2008 Zoya Akulova
Eucalyptus pulverulenta
2012 David Varner

Eucalyptus sideroxylon    Red iron bark,  Red ironbark
non-native
Tree

MYRTACEAE

Eucalyptus sideroxylon
2021 Ron Vanderhoff
Eucalyptus sideroxylon
2022 Ron Vanderhoff
Eucalyptus sideroxylon
2022 Ron Vanderhoff

Euchiton gymnocephalus    Creeping cudweed
non-native
Perennial herb

ASTERACEAE

Euchiton gymnocephalus
2008 Zoya Akulova
Euchiton gymnocephalus
2009 Zoya Akulova
Euchiton gymnocephalus
2017 Zoya Akulova

Euchiton sphaericus    Tropical creeping cudweed
non-native
Annual herb

ASTERACEAE

Euchiton sphaericus
© 2014 Richard Spellenberg
Euchiton sphaericus
2014 Richard Spellenberg
Euchiton sphaericus
2014 Richard Spellenberg

Euonymus occidentalis    Burning bush,  Western burning bush
native
Tree, Shrub

CELASTRACEAE

Euonymus occidentalis
2017 Diane Etchison
Euonymus occidentalis
2018 Parker Santiago
Euonymus occidentalis
2014 Zoya Akulova

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 crenulata    Chinese caps,  Chinesecaps
native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia crenulata
2008 Steve Matson
Euphorbia crenulata
2014 Jim Moore
Euphorbia crenulata
2008 Steve Matson

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
2020 Jennifer Mo

Eurybia radulina    Roughleaf aster
native
Perennial herb

ASTERACEAE

Eurybia radulina
2022 Suzanne L. Weakley
Eurybia radulina
2022 Bob Sweatt
Eurybia radulina
2022 Bob Sweatt

Fallopia convolvulus    Black bindweed
non-native
Annual herb

POLYGONACEAE

Fallopia convolvulus
2014 Robert L. Carr
Fallopia convolvulus
2014 Robert L. Carr
Fallopia convolvulus
2014 Robert L. Carr

Fallopia sachalinensis    Giant knotweed
invasive non-native
Perennial herb

POLYGONACEAE

Fallopia sachalinensis
2022 Patrick Hoffman
Fallopia sachalinensis
2001 CDFA
Fallopia sachalinensis
2018 Amy Eberwein

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

POACEAE

Festuca arundinacea
2018 Brian Charles
Festuca arundinacea
2020 Thomas Reyes
Festuca arundinacea
2008 Keir Morse

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 californica var. californica    California fescue
native
Perennial grass

POACEAE

Festuca californica var. californica
2019 Justin Luong
Festuca californica var. californica
2022 Justin Luong
Festuca californica var. 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 elmeri var. elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

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

Festuca idahoensis    Blue bunchgrass,  Blue fescue,  Idaho fescue
native
Perennial grass

POACEAE

Festuca idahoensis
2020 Paul Aigner
Festuca idahoensis
2019 John Rawlings
Festuca idahoensis
2020 Paul Aigner

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 occidentalis    Western fescue
native
Perennial grass

POACEAE

Festuca occidentalis
2011 Steve Matson
Festuca occidentalis
2011 Steve Matson
Festuca occidentalis
2011 Steve Matson

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 pratensis    Meadow fescue
non-native
Perennial grass

POACEAE

Festuca pratensis
2012 Al Keuter
Festuca pratensis
2008 Steve Matson
Festuca pratensis
2012 Al Keuter

Festuca rubra    Red fescue
native
Perennial grass

POACEAE

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

Festuca rubra ssp. rubra    Red fescue
native
Perennial grass

POACEAE

Festuca rubra ssp. rubra
2018 Susan McDougall
Festuca rubra ssp. rubra
2018 Susan McDougall

Festuca subulata    Bearded fescue,  Nodding fescue
native
Perennial grass

POACEAE

Festuca subulata
2020 Susan McDougall
Festuca subulata
2008 Steve Matson
Festuca subulata
2016 David popp

Festuca subuliflora    Coast range fescue,  Crinkleawn fescue
native
Perennial grass

POACEAE

Festuca subuliflora
2018 Ken Hickman
Festuca subuliflora
2022 John Rawlings
Festuca subuliflora
2022 John Rawlings

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

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

APIACEAE

Foeniculum vulgare
2019 Nicole Leatherman
Foeniculum vulgare
2019 Ron Vanderhoff
Foeniculum vulgare
2015 Neal Kramer

Forsythia Xintermedia   


Fragaria chiloensis    Beach strawberry
native
Perennial herb

ROSACEAE

Fragaria chiloensis
2016 Teresa R Spade, AICP
Fragaria chiloensis
2009 Thomas Stoughton
Fragaria chiloensis
2003 James B. Gratiot

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

ROSACEAE

Fragaria vesca
2020 Cara Wilcox
Fragaria vesca
2020 Cara Wilcox
Fragaria vesca
2020 Susan McDougall

Fragaria vesca ssp. californica    California strawberry,  Wild strawberry,  Wood strawberry
native
Perennial herb

ROSACEAE

Fragaria vesca ssp. californica
2020 Cara Wilcox
Fragaria vesca ssp. californica
2020 Cara Wilcox
Fragaria vesca ssp. californica
2020 Susan McDougall

Frangula californica ssp. californica    California coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. californica
2018 Jay Chamberlain
Frangula californica ssp. californica
2019 Mary Conway
Frangula californica ssp. californica
2019 Mary Conway

Frangula californica ssp. occidentalis    Wetern california coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. occidentalis
2016 Steve Matson
Frangula californica ssp. occidentalis
2016 Steve Matson
Frangula californica ssp. occidentalis
2016 Steve Matson

Frangula purshiana    Cascara buckthorn
native
Tree, Shrub

RHAMNACEAE

Frangula purshiana
2017 Steve Matson
Frangula purshiana
2017 Steve Matson
Frangula purshiana
2016 David popp

Fraxinus latifolia    Oregon ash
native
Tree

OLEACEAE

Fraxinus latifolia
2021 Robert Whitaker
Fraxinus latifolia
2021 Richard Spjut
Fraxinus latifolia
2012 Terrence Gosliner

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

LILIACEAE

Fritillaria affinis
2017 Steve Matson
Fritillaria affinis
2008 Steve Matson
Fritillaria affinis
2020 Karen Swift

Galium ambiguum    Yolla bolly bedstraw
native
Perennial herb

RUBIACEAE

Galium ambiguum
2017 Steve Matson
Galium ambiguum
2017 Steve Matson
Galium ambiguum
2017 Julie A. Kierstead

Galium ambiguum ssp. siskiyouense    Siskiyou bedstraw
native
Perennial herb

RUBIACEAE

Galium ambiguum ssp. siskiyouense
2017 Steve Matson
Galium ambiguum ssp. siskiyouense
2017 Steve Matson
Galium ambiguum ssp. siskiyouense
2008 Keir Morse

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

RUBIACEAE

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

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

RUBIACEAE

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

Galium californicum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum
2021 Kristen Nelson
Galium californicum
2015 jamie smith
Galium californicum
2006 Steve Matson

Galium divaricatum    Lamarck's bedstraw
non-native
Annual herb

RUBIACEAE

Galium divaricatum
2001 Julie Kierstead Nelson
Galium divaricatum
2020 Jean Pawek
Galium divaricatum
2020 Jean Pawek

Galium parisiense    Wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium parisiense
2021 Al Keuter
Galium parisiense
2020 Ron Vanderhoff
Galium parisiense
2020 David popp

Galium porrigens    Climbing bedstraw,  Graceful bedstraw,  Nuttall's bedstraw
native
Vine, Shrub

RUBIACEAE

Galium porrigens
2018 Stacie Wolny
Galium porrigens
2022 R.A. Chasey
Galium porrigens
2022 Ron Vanderhoff

Galium trifidum    Three petaled bedstraw,  Threepetal bedstraw,  Trifid bedstraw
native
Perennial herb

RUBIACEAE

Galium trifidum
2020 Alaine Arslan
Galium trifidum
2022 Mike Russler
Galium trifidum
2005 Steve Matson

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 buxifolia    Boxleaf silk tassel,  Boxleaf silktassel,  Dwarf silktassel
native
Shrub

GARRYACEAE

Garrya buxifolia
2019 Susan McDougall
Garrya buxifolia
2021 Steve Conger
Garrya buxifolia
2021 Steve Matson

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
2021 Paul Aigner

Gaultheria shallon    Salal
native
Shrub

ERICACEAE

Gaultheria shallon
2018 Saskia Raether
Gaultheria shallon
2020 Mary Sue Ittner
Gaultheria shallon
2014 Zoya Akulova

Genista monspessulana    French broom
invasive non-native
Shrub

FABACEAE

Genista monspessulana
2019 Ron Vanderhoff
Genista monspessulana
2015 Barry Breckling
Genista monspessulana
2019 Ron Vanderhoff

Gentiana affinis var. ovata    Gentian,  Pleated gentian
native
Perennial herb

GENTIANACEAE

Gentiana affinis var. ovata
2022 Zoya Akulova-Barlow
Gentiana affinis var. ovata
2022 Dee Shea Himes
Gentiana affinis var. ovata
2020 John Game

Geranium carolinianum    Carolina geranium
native
Annual herb

GERANIACEAE

Geranium carolinianum
2018 Ron Vanderhoff
Geranium carolinianum
2019 Ron Vanderhoff
Geranium carolinianum
2004 Carol W. Witham

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

GERANIACEAE

Geranium dissectum
2020 Ron Vanderhoff
Geranium dissectum
2015 Chris Jaster
Geranium dissectum
2014 Bryan Derr

Geranium lucidum    Shining geranium
invasive non-native
Annual, Biennial herb

GERANIACEAE

Geranium lucidum
2022 Patrick Hoffman
Geranium lucidum
2016 Dr. Amadej Trnkoczy
Geranium lucidum
2011 Phil Pullen

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

GERANIACEAE

Geranium molle
2009 Bob Case
Geranium molle
2019 David Magney
Geranium molle
2018 Stacie Wolny

Geranium oreganum    Oregon geranium
native
Perennial herb

GERANIACEAE

Geranium oreganum
2021 Steve Conger
Geranium oreganum
2021 Steve Conger
Geranium oreganum
2021 Steve Conger

Geranium pusillum    Small flowered geranium,  Small geranium
non-native
Annual herb

GERANIACEAE

Geranium pusillum
2014 Zoya Akulova
Geranium pusillum
2016 Dr. Amadej Trnkoczy
Geranium pusillum
2012 Phil Pullen

Geranium robertianum    Robert geranium,  Robert's geranium
invasive non-native
Annual herb

GERANIACEAE

Geranium robertianum
2014 James Gonsman
Geranium robertianum
2013 Al Keuter
Geranium robertianum
2013 Robert Steers/NPS

Geum macrophyllum    Large leaved avens,  Large leaf avens,  Large leaved avens
native
Perennial herb

ROSACEAE

Geum macrophyllum
2022 Mike Russler
Geum macrophyllum
2022 Mike Russler
Geum macrophyllum
2022 Mike Russler

Gilia capitata    Blue field gilia,  Bluehead gilia
native
Annual herb

POLEMONIACEAE

Gilia capitata
2011 Gerald Carr
Gilia capitata
2011 Gerald Carr
Gilia capitata
2011 Gerald Carr

Gilia capitata ssp. pacifica    Pacific blue field gilia,  Pacific gilia
rare native
Annual herb

POLEMONIACEAE

Gilia capitata ssp. pacifica
2019 Wyatt Dooley
Gilia capitata ssp. pacifica
2019 Wyatt Dooley
Gilia capitata ssp. pacifica
2016 Steve Matson

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

CAMPANULACEAE

Githopsis specularioides
2018 John Game
Githopsis specularioides
2018 John Game
Githopsis specularioides
2011 Steven Perry

Glechoma hederacea    Ground ivy
non-native
Perennial herb

LAMIACEAE

Glechoma hederacea
2005 Louis-M. Landry
Glechoma hederacea
2005 Louis-M. Landry
Glechoma hederacea
2004 Dr. Amadej Trnkoczy

Glehnia littoralis    American silvertop
native
Perennial herb

APIACEAE

Glehnia littoralis
2017 John Game
Glehnia littoralis
2013 Dana York
Glehnia littoralis
2013 Dana York

Glehnia littoralis ssp. leiocarpa    American glehnia,  American silvertop
rare native
Perennial herb

APIACEAE

Glehnia littoralis ssp. leiocarpa
2013 Dana York
Glehnia littoralis ssp. leiocarpa
2013 Dana York
Glehnia littoralis ssp. leiocarpa
2020 Steve Conger

Glyceria elata    Fowl mannagrass,  Tall mannagrass
native
Perennial grass

POACEAE

Glyceria elata
2008 Steve Matson
Glyceria elata
2008 Steve Matson
Glyceria elata
2020 Susan McDougall

Glyceria fluitans    Water mannagrass
non-native
Perennial grass

POACEAE


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

POACEAE

Glyceria Xoccidentalis
2007 Gerald Carr
Glyceria Xoccidentalis
2007 Gerald Carr
Glyceria Xoccidentalis
2007 Gerald Carr

Gnaphalium palustre    Lowland cudweed,  Western marsh cudweed
native
Annual herb

ASTERACEAE

Gnaphalium palustre
2019 Ron Vanderhoff
Gnaphalium palustre
2019 Ron Vanderhoff
Gnaphalium palustre
2019 Ron Vanderhoff

Goodyera oblongifolia    Rattlesnake plantain,  Western rattlesnake plantain
native
Perennial herb

ORCHIDACEAE

Goodyera oblongifolia
2020 Bob Sweatt
Goodyera oblongifolia
2019 Glenn Fine
Goodyera oblongifolia
2019 Julie A. Kierstead

Grindelia stricta    Coastal gumweed,  Gumweed,  Oregon gumweed
native
Perennial herb

ASTERACEAE

Grindelia stricta
2022 R.A. Chasey
Grindelia stricta
2022 R.A. Chasey
Grindelia stricta
2022 Suzanne L. Weakley

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

ASTERACEAE

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

Hastingsia alba    Reed lily,  White bog hastingsia,  White hastingsia
native
Perennial herb

AGAVACEAE

Hastingsia alba
2018 Charles Russell
Hastingsia alba
2019 Jane Cohn
Hastingsia alba
2015 Steve Matson

Hastingsia serpenticola    Klamath rushlily,  Siskiyou hastingsia
native
Perennial herb

AGAVACEAE

Hastingsia serpenticola
2019 Julie Kierstead Nelson
Hastingsia serpenticola
2014 John Doyen
Hastingsia serpenticola
2016 Julie Kierstead Nelson

Hastingsia serpentinicola    Klamath rushlily,  Siskiyou hastingsia
native
Perennial herb

AGAVACEAE

Hastingsia serpentinicola
2019 Julie Kierstead Nelson
Hastingsia serpentinicola
2014 John Doyen
Hastingsia serpentinicola
2016 Julie Kierstead Nelson

Hedera helix    English ivy
invasive non-native
Vine, Shrub

ARALIACEAE

Hedera helix
2019 Claire Mallen
Hedera helix
1985 Joe DiTomaso
Hedera helix
2017 Allison Titus

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
2019 Patrick Furtado
Helenium puberulum
2013 Toni Corelli
Helenium puberulum
2015 Stephen Rosenthal

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

ASTERACEAE

Helminthotheca echioides
2016 Hayley Ross
Helminthotheca echioides
2019 Rachelle Gray
Helminthotheca echioides
2019 Rachelle Gray

Hemitomes congestum    Coneplant,  Gnome plant
native
Perennial herb (mycoparasitic)

ERICACEAE

Hemitomes congestum
2018 Saskia Raether
Hemitomes congestum
2006 Charles E. Jones
Hemitomes congestum
2011 Ryan Batten

Hemizonia congesta    Hayfield tarweed
native
Annual herb

ASTERACEAE

Hemizonia congesta
2021 Mike Russler
Hemizonia congesta
2018 Stacie Wolny
Hemizonia congesta
2019 Jennifer Mo

Hemizonia congesta ssp. tracyi    Hayfield tarweed,  Tracy's tarplant
rare native
Annual herb

ASTERACEAE

Hemizonia congesta ssp. tracyi
2016 Steve Matson
Hemizonia congesta ssp. tracyi
2016 Steve Matson
Hemizonia congesta ssp. tracyi
2016 Steve Matson

Hemizonia tracyi    Hayfield tarweed,  Tracy's tarplant
rare native
Annual herb

ASTERACEAE

Hemizonia tracyi
2016 Steve Matson
Hemizonia tracyi
2016 Steve Matson
Hemizonia tracyi
2016 Steve Matson

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

Hesperocyparis macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

Hesperocyparis macrocarpa
2019 Patrick Furtado
Hesperocyparis macrocarpa
2009 Keir Morse
Hesperocyparis macrocarpa
2021 Cynthia Powell

Heterotheca oregona var. oregona    Oregon false goldenaster,  Oregon goldenaster
native
Perennial herb

ASTERACEAE

Heterotheca oregona var. oregona
2022 Dana York
Heterotheca oregona var. oregona
2020 Susan McDougall
Heterotheca oregona var. oregona
2020 Susan McDougall

Heuchera micrantha    Alum root,  Crevice alumroot
native
Perennial herb

SAXIFRAGACEAE

Heuchera micrantha
2021 Mary Ann Machi
Heuchera micrantha
2020 Susan McDougall
Heuchera micrantha
2013 Debra L. Cook

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

Hieracium bolanderi    Bolander's hawkweed
native
Perennial herb

ASTERACEAE

Hieracium bolanderi
2017 Steve Matson
Hieracium bolanderi
2017 Steve Matson
Hieracium bolanderi
2017 Steve Matson

Hieracium cynoglossoides    Hounds tongue hawkweed,  Houndstongue hawkweed,  Scouler's hawkweed
native
Perennial herb

ASTERACEAE

Hieracium cynoglossoides
2011 Steve Matson
Hieracium cynoglossoides
2011 Steve Matson
Hieracium cynoglossoides
2011 Steve Matson

Hieracium scouleri    Hounds tongue hawkweed,  Houndstongue hawkweed,  Scouler's hawkweed
native
Perennial herb

ASTERACEAE

Hieracium scouleri
2011 Steve Matson
Hieracium scouleri
2011 Steve Matson
Hieracium scouleri
2011 Steve Matson

Hippuris vulgaris    Common mare's tail,  Common mares tail,  Mare's tail
native
Perennial herb (aquatic)

PLANTAGINACEAE

Hippuris vulgaris
2019 Bob Sweatt
Hippuris vulgaris
2018 Isaac Chellman
Hippuris vulgaris
2008 Dean Wm. Taylor, Ph.D.

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

Holodiscus discolor    Cream bush,  Ocean spray,  Oceanspray
native
Shrub

ROSACEAE

Holodiscus discolor
2019 Bob Sweatt
Holodiscus discolor
2020 Camille Nowell
Holodiscus discolor
2018 Ron Vanderhoff

Hordeum brachyantherum    Meadow barley
native
Perennial grass

POACEAE

Hordeum brachyantherum
2021 Cynthia Powell
Hordeum brachyantherum
2021 Travis Columbus
Hordeum brachyantherum
2015 Steve Matson

Hordeum jubatum    Fox tail barley,  Foxtail barley,  Squirreltail barley
native
Perennial grass

POACEAE

Hordeum jubatum
2019 Rachelle Gray
Hordeum jubatum
2009 Barry Rice
Hordeum jubatum
2009 Zoya Akulova

Hordeum marinum ssp. gussonianum    Seaside barley
invasive non-native
Annual grass

POACEAE

Hordeum marinum ssp. gussonianum
2015 Chris Jaster
Hordeum marinum ssp. gussonianum
2017 Julia Dorosh
Hordeum marinum ssp. gussonianum
2015 Chris Jaster

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

POACEAE

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

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

Hordeum murinum ssp. murinum    Wall barley
non-native
Annual grass

POACEAE

Hordeum murinum ssp. murinum
2017 Julia Dorosh
Hordeum murinum ssp. murinum
2015 jamie smith

Horkelia sericata    Howell's horkelia,  Silky horkelia
rare native
Perennial herb

ROSACEAE

Horkelia sericata
2015 John Doyen
Horkelia sericata
2014 John Doyen
Horkelia sericata
2010 Sean B. Smith

Hosackia gracilis    Harlequin lotus
rare native
Perennial herb

FABACEAE

Hosackia gracilis
2019 David Greenberger
Hosackia gracilis
2020 Mary Conway
Hosackia gracilis
2019 Paul Hankamp

Hosackia oblongifolia    Narrow leaved lotus
native
Perennial herb

FABACEAE

Hosackia oblongifolia
2006 Steve Matson
Hosackia oblongifolia
2019 R.A. Chasey
Hosackia oblongifolia
2013 BOB CASE

Hosackia pinnata    Pinnate lotus
native
Perennial herb

FABACEAE

Hosackia pinnata
2015 Steve Matson
Hosackia pinnata
2015 Steve Matson
Hosackia pinnata
2015 Steve Matson

Hosackia rosea    Rose flowered lotus
native
Perennial herb

FABACEAE

Hosackia rosea
2019 Heather Morrison
Hosackia rosea
2022 Zoya Akulova-Barlow
Hosackia rosea
2018 Claire Brown


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

ARALIACEAE

Hydrocotyle ranunculoides
2020 Ron Vanderhoff
Hydrocotyle ranunculoides
2022 Ellen Uhler
Hydrocotyle ranunculoides
2013 Neal Kramer

Hydrophyllum occidentale    California waterleaf,  Western waterleaf
native
Perennial herb

HYDROPHYLLACEAE

Hydrophyllum occidentale
2020 Susan McDougall
Hydrophyllum occidentale
2020 Susan McDougall
Hydrophyllum occidentale
2020 Steve Conger

Hydrophyllum tenuipes    Pacific waterleaf
native
Perennial herb

HYDROPHYLLACEAE

Hydrophyllum tenuipes
2007 Matt Below
Hydrophyllum tenuipes
2019 Tristan K Cole
Hydrophyllum tenuipes
2007 Matt Below

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

HYPERICACEAE

Hypericum anagalloides
2019 Bob Sweatt
Hypericum anagalloides
2020 Joaquin Hale
Hypericum anagalloides
2021 Mike Russler

Hypericum beanii   


Hypericum calycinum    Aaron's beard
non-native
Shrub

HYPERICACEAE

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

Hypericum formosum    St john's wort
native
Perennial herb

HYPERICACEAE

Hypericum formosum
2011 Steven Thorsted
Hypericum formosum
2005 Jerry Murray

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

HYPERICACEAE

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

Hypericum scouleri    Scouler's st john's wort
native
Perennial herb

HYPERICACEAE

Hypericum scouleri
2021 Julie A. Kierstead
Hypericum scouleri
2022 Steve Matson
Hypericum scouleri
2021 Julie A. Kierstead

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

ASTERACEAE

Hypochaeris glabra
2017 Gary McDonald
Hypochaeris glabra
2019 Gary McDonald
Hypochaeris glabra
2017 Gary McDonald

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

ASTERACEAE

Hypochaeris radicata
2011 Michael Mitchell
Hypochaeris radicata
2017 Gary McDonald
Hypochaeris radicata
2016 Michael Mitchell

Ilex aquifolium    English holly,  Holly
invasive non-native
Tree, Shrub

AQUIFOLIACEAE

Ilex aquifolium
2021 Cynthia Powell
Ilex aquifolium
2005 Dr. Amadej Trnkoczy
Ilex aquifolium
2021 Cynthia Powell

Iris douglasiana    Douglas iris,  Douglas' iris
native
Perennial herb

IRIDACEAE

Iris douglasiana
2020 Susan McDougall
Iris douglasiana
2020 Susan McDougall
Iris douglasiana
2009 John W. Wall

Iris innominata    Del norte county iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris innominata
2010 Gerald Carr
Iris innominata
2010 Gerald Carr
Iris innominata
2010 Gerald Carr

Iris tenax ssp. klamathensis    Klamath iris,  Orleans iris
rare native
Perennial herb (rhizomatous)

IRIDACEAE

Iris tenax ssp. klamathensis
2012 Dana York
Iris tenax ssp. klamathensis
2012 Dana York
Iris tenax ssp. klamathensis
2012 Dana York

Iris tenuissima    Iris,  Longtube iris,  Slender iris
native
Perennial herb

IRIDACEAE

Iris tenuissima
2009 Julie A. Kierstead
Iris tenuissima
2010 Julie A. Kierstead
Iris tenuissima
2020 Julie A. Kierstead

Isatis tinctoria    Dyer's woad,  Dyers woad
invasive non-native
Biennial, Perennial herb

BRASSICACEAE

Isatis tinctoria
2019 Dana York
Isatis tinctoria
2019 Dana York
Isatis tinctoria
2019 Dana York

Isolepis setacea    Bristleleaf bulrush
non-native
Perennial grasslike herb

CYPERACEAE

Isolepis setacea
2004 Steve Matson
Isolepis setacea
2004 Steve Matson
Isolepis setacea
2004 Steve Matson

Juglans   


Juglans regia    English walnut
non-native
Tree

JUGLANDACEAE

Juglans regia
2018 Ron Vanderhoff
Juglans regia
2003 Joseph Dougherty/ecology.org
Juglans regia
2019 Janice Kuch

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

Juncus breweri    Brewer's rush
native
Perennial grasslike herb

JUNCACEAE

Juncus breweri
2016 Steve Matson
Juncus breweri
2016 Steve Matson
Juncus breweri
2020 Adonis Tate

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

JUNCACEAE

Juncus bufonius
2019 Ron Vanderhoff
Juncus bufonius
2019 Ron Vanderhoff
Juncus bufonius
2004 James M. Andre

native
Annual grasslike herb

JUNCACEAE

Juncus bufonius var. bufonius
2021 John Rawlings
Juncus bufonius var. bufonius
2019 Ron Vanderhoff
Juncus bufonius var. bufonius
2019 Ron Vanderhoff

Juncus confusus    Colorado rush
native
Perennial grasslike herb

JUNCACEAE

Juncus confusus
2015 Steve Matson
Juncus confusus
2015 Steve Matson
Juncus confusus
2015 Steve Matson

Juncus effusus    Bog rush,  Common bog rush,  Common rush
native
Perennial grasslike herb

JUNCACEAE

Juncus effusus
2019 Patrick Furtado
Juncus effusus
2019 Patrick Furtado
Juncus effusus
2019 Eric Wrubel

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
2019 Patrick Furtado
Juncus hesperius
2021 John Rawlings
Juncus hesperius
2019 Patrick Furtado

Juncus lesueurii    Dune rush
native
Perennial grasslike herb

JUNCACEAE

Juncus lesueurii
2018 Richard Spjut
Juncus lesueurii
2008 Toni Corelli
Juncus lesueurii
2008 Toni Corelli

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
2008 Neal Kramer

Juncus tenuis    Poverty rush,  Slender rush
native
Perennial grasslike herb

JUNCACEAE

Juncus tenuis
2020 Peter Warner
Juncus tenuis
2008 Keir Morse
Juncus tenuis
2009 Neal Kramer

Juncus tenuis var. congestus    Rush,  Slender juncus,  Western rush
native
Perennial grasslike herb

JUNCACEAE

Juncus tenuis var. congestus
2021 Toni Corelli
Juncus tenuis var. congestus
2021 Dick Rawson
Juncus tenuis var. congestus
2021 Dick Rawson

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

JUNCACEAE

Juncus xiphioides
2016 Erik Larsen
Juncus xiphioides
2021 Stephen Rosenthal
Juncus xiphioides
2017 Ron Vanderhoff

Juniperus communis    Common juniper,  Dwarf juniper
native
Shrub

CUPRESSACEAE

Juniperus communis
2019 Bob Sweatt
Juniperus communis
2020 Donald Burk
Juniperus communis
2010 Louis-M. Landry

Juniperus communis var. saxatilis    Common juniper
native
Shrub

CUPRESSACEAE

Juniperus communis var. saxatilis
2019 Bob Sweatt
Juniperus communis var. saxatilis
2005 Dean Wm. Taylor, Ph.D.
Juniperus communis var. saxatilis
2019 Bob Sweatt

Keckiella corymbosa    Red beardtongue,  Redwood keckiella
native
Shrub

PLANTAGINACEAE

Keckiella corymbosa
2021 Mary Ann Machi
Keckiella corymbosa
2013 John Doyen
Keckiella corymbosa
2021 Mary Ann Machi

Koeleria cristata    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria cristata
2020 Matt Berry
Koeleria cristata
2015 Steve Matson
Koeleria cristata
2015 Steve Matson

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2020 Matt Berry
Koeleria macrantha
2015 Steve Matson
Koeleria macrantha
2015 Steve Matson

Kopsiopsis strobilacea    California ground-cone
native
Perennial herb (parasitic)

OROBANCHACEAE

Kopsiopsis strobilacea
2020 Ralph Henson
Kopsiopsis strobilacea
2015 Amy Rapport
Kopsiopsis strobilacea
2019 Jonathan Lee

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

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

Lathyrus brownii    Brown's brush pea
native
Perennial herb

FABACEAE

Lathyrus brownii
2019 Julie Kierstead Nelson
Lathyrus brownii
2017 David popp
Lathyrus brownii
1992 Gary A. Monroe

Lathyrus delnorticus    Del norte pea
rare native
Perennial herb

FABACEAE

Lathyrus delnorticus
2020 Kolby Lundgren
Lathyrus delnorticus
2022 Tricia Bippus
Lathyrus delnorticus
2007 Norman Jensen

Lathyrus japonicus    Beach pea,  Sea pea
rare native
Perennial herb

FABACEAE

Lathyrus japonicus
2017 Steve Matson
Lathyrus japonicus
2017 Steve Matson
Lathyrus japonicus
2017 Steve Matson

Lathyrus japonicus var. glaber    Beach pea,  Sea pea
rare native
Perennial herb

FABACEAE

Lathyrus japonicus var. glaber
2017 Steve Matson
Lathyrus japonicus var. glaber
2017 Steve Matson
Lathyrus japonicus var. glaber
2017 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
2019 Julie Kierstead Nelson

Lathyrus littoralis    Beach pea,  Silky beach pea
native
Perennial herb

FABACEAE

Lathyrus littoralis
2017 Steve Matson
Lathyrus littoralis
2017 Steve Matson
Lathyrus littoralis
2020 Steve Conger

Lathyrus nevadensis ssp. nevadensis    Sierra nevada pea,  Sierra pea
native
Perennial herb

FABACEAE

Lathyrus nevadensis ssp. nevadensis
2019 Susan McDougall
Lathyrus nevadensis ssp. nevadensis
2022 Ryan O'Dell
Lathyrus nevadensis ssp. nevadensis
2019 Susan McDougall

Lathyrus nevadensis var. nevadensis    Sierra nevada pea,  Sierra pea
native
Perennial herb

FABACEAE

Lathyrus nevadensis var. nevadensis
2019 Susan McDougall
Lathyrus nevadensis var. nevadensis
2022 Ryan O'Dell
Lathyrus nevadensis var. nevadensis
2019 Susan McDougall

Lathyrus palustris    Marsh pea
rare native
Perennial herb

FABACEAE

Lathyrus palustris
2021 Kipp Pow
Lathyrus palustris
2022 Dana York
Lathyrus palustris
2008 Jennifer L. Kalt

Lathyrus pauciflorus ssp. brownii    Brown's brush pea
native
Perennial herb

FABACEAE

Lathyrus pauciflorus ssp. brownii
2019 Julie Kierstead Nelson
Lathyrus pauciflorus ssp. brownii
2017 David popp
Lathyrus pauciflorus ssp. brownii
1992 Gary A. Monroe

Lathyrus sphaericus    Grass peavine
non-native
Annual herb

FABACEAE

Lathyrus sphaericus
2019 Bill Haley
Lathyrus sphaericus
2019 Bill Haley
Lathyrus sphaericus
2018 James Gonsman

Lathyrus torreyi    Redwood pea,  Torrey's pea
native
Perennial herb

FABACEAE

Lathyrus torreyi
2018 Hayley Ross
Lathyrus torreyi
2018 Hayley Ross
Lathyrus torreyi
2008 Jorg Fleige

Lathyrus vestitus    Bolander's pea,  Common pacific pea,  Pacific peavine
native
Perennial herb

FABACEAE

Lathyrus vestitus
2018 Stacie Wolny
Lathyrus vestitus
2009 John W. Wall
Lathyrus vestitus
2019 Steve Conger

Lathyrus vestitus var. ochropetalus    Bolander's pacific pea,  Bolander's pea,  Pale pacific pea
native
Perennial herb

FABACEAE

Lathyrus vestitus var. ochropetalus
2016 Stephanie Sonora
Lathyrus vestitus var. ochropetalus
2013 Ron Clark
Lathyrus vestitus var. ochropetalus
2013 Ron Clark

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

FABACEAE

Lathyrus vestitus var. vestitus
2018 Ron Vanderhoff
Lathyrus vestitus var. vestitus
2022 Charles Russell
Lathyrus vestitus var. vestitus
2020 James Gonsman

Layia carnosa    Beach layia,  Beach tidytips
rare native
Annual herb

ASTERACEAE

Layia carnosa
2020 David Greenberger
Layia carnosa
2019 Scott Yarger
Layia carnosa
2016 Steve Matson

Lemna   


non-native
Annual herb

ASTERACEAE

Leontodon leysseri
2009 Zoya Akulova
Leontodon leysseri
2015 Richard Spellenberg
Leontodon leysseri
2009 Zoya Akulova

Leontodon saxatilis    Hawkbit
non-native
Annual herb

ASTERACEAE

Leontodon saxatilis
2008 Steve Matson
Leontodon saxatilis
2008 Steve Matson
Leontodon saxatilis
2009 Zoya Akulova

Lepidium didymum    Lesser swine cress
non-native
Annual herb

BRASSICACEAE

Lepidium didymum
2022 Shawna Martinez
Lepidium didymum
2009 Neal Kramer
Lepidium didymum
2022 Shawna Martinez

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
2019 David Greenberger
Leptosiphon bicolor
2020 R.A. Chasey
Leptosiphon bicolor
2019 Mary Conway

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Leptosiphon parviflorus
2022 Irene Rosen
Leptosiphon parviflorus
2021 Ron Vanderhoff
Leptosiphon parviflorus
2020 Ron Vanderhoff

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

Ligusticum apiifolium    Celery leaved lovage,  Celeryleaf licorice root,  Lovage
native
Perennial herb

APIACEAE

Ligusticum apiifolium
2022 R.A. Chasey
Ligusticum apiifolium
2019 Richard Spjut
Ligusticum apiifolium
2019 Ken Hickman

Ligusticum californicum    California licorice root,  California lovage
native
Perennial herb

APIACEAE

Ligusticum californicum
2017 Steve Matson
Ligusticum californicum
2017 Steve Matson
Ligusticum californicum
2017 Steve Matson

Lilium bolanderi    Bolander's lily
rare native
Perennial herb (bulb)

LILIACEAE

Lilium bolanderi
2018 Anna Sereno
Lilium bolanderi
2018 Anna Sereno
Lilium bolanderi
2020 Kolby Lundgren

Lilium columbianum    Columbia lily,  Columbian lily,  Oregon lily
native
Perennial herb

LILIACEAE

Lilium columbianum
2018 Saskia Raether
Lilium columbianum
2016 Keir Morse
Lilium columbianum
2010 Kim Cabrera

Limnanthes douglasii ssp. nivea    Snow white meadowfoam
native
Annual herb

LIMNANTHACEAE

Limnanthes douglasii ssp. nivea
2018 Evan Johnson
Limnanthes douglasii ssp. nivea
2019 Cynthia Powell
Limnanthes douglasii ssp. nivea
2015 John Doyen

Linanthus bicolor ssp. bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Linanthus bicolor ssp. bicolor
2019 David Greenberger
Linanthus bicolor ssp. bicolor
2020 R.A. Chasey
Linanthus bicolor ssp. bicolor
2019 Mary Conway

Linaria dalmatica    Dalmatian toadflax
non-native
Perennial herb

PLANTAGINACEAE

Linaria dalmatica
2022 Jonathan Widdicombe
Linaria dalmatica
2005 Louis-M. Landry
Linaria dalmatica
2022 Jonathan Widdicombe

Linaria genistifolia ssp. dalmatica    Dalmatian toadflax
invasive non-native
Perennial herb

PLANTAGINACEAE

Linaria genistifolia ssp. dalmatica
2021 Dennis Diaz
Linaria genistifolia ssp. dalmatica
2006 Steven Thorsted
Linaria genistifolia ssp. dalmatica
2016 Phil Zortman

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

Liriodendron tulipifera    Tuliptree
non-native
Tree

MAGNOLIACEAE

Liriodendron tulipifera
2008 Gary W. Sargent
Liriodendron tulipifera
2005 Louis-M. Landry

Listera banksiana    Northwest twayblade
native
Perennial herb

ORCHIDACEAE

Listera banksiana
2019 Matt Berger
Listera banksiana
2019 Matt Berger
Listera banksiana
2019 Kolby Lundgren

Listera cordata    Heart leaved twayblade,  Heartleaf twayblade
rare native
Perennial herb

ORCHIDACEAE

Listera cordata
2021 Timothy Boomer
Listera cordata
2021 Timothy Boomer
Listera cordata
2022 Steve Conger

native
Tree, Shrub

FAGACEAE

Lithocarpus densiflorus
2022 David Strauch
Lithocarpus densiflorus
2019 Bryant Baker
Lithocarpus densiflorus
2008 Keir Morse

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

SAXIFRAGACEAE

Lithophragma affine
2017 Bonnie Nickel
Lithophragma affine
2021 Yoriko Kishimoto
Lithophragma affine
2020 Mary Conway

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

SAXIFRAGACEAE

Lithophragma affine ssp. affine
2017 Bonnie Nickel
Lithophragma affine ssp. affine
2021 Yoriko Kishimoto
Lithophragma affine ssp. affine
2020 Mary Conway

Lithophragma parviflorum    Pink woodland star,  Prairie star,  Smallflower woodland star
native
Perennial herb

SAXIFRAGACEAE

Lithophragma parviflorum
2019 Gary McDonald
Lithophragma parviflorum
2022 Catherine Chang
Lithophragma parviflorum
2019 Bob Sweatt

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Logfia gallica
2015 jamie smith
Logfia gallica
2013 Keir Morse
Logfia gallica
2017 Barbara Boethling

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

POACEAE

Lolium perenne ssp. multiflorum
2019 Ron Vanderhoff
Lolium perenne ssp. multiflorum
2017 Gary McDonald
Lolium perenne ssp. multiflorum
2021 Ron Vanderhoff

Lomatium dissectum    Fern leaved lomatium,  Fernleaf biscuitroot
native
Perennial herb

APIACEAE

Lomatium dissectum
2020 Bob Sweatt
Lomatium dissectum
2020 Bob Sweatt
Lomatium dissectum
2007 Norman Jensen

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
2019 Gary McDonald
Lomatium utriculatum
2020 Matt Berger
Lomatium utriculatum
2020 Matt Berger

Lonicera hispidula    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

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

Lonicera hispidula var. vacillans    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera hispidula var. vacillans
2019 Stacie Wolny
Lonicera hispidula var. vacillans
2019 Stacie Wolny
Lonicera hispidula var. vacillans
2021 Bryant Baker

Lonicera involucrata    Coast twinberry,  Twin berry,  Twinberry honeysuckle
native
Shrub

CAPRIFOLIACEAE

Lonicera involucrata
2021 Suzanne L. Weakley
Lonicera involucrata
2014 James Gonsman
Lonicera involucrata
2020 Susan McDougall

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

CAPRIFOLIACEAE

Lonicera involucrata var. ledebourii
2014 James Gonsman
Lonicera involucrata var. ledebourii
2022 Suzanne L. Weakley
Lonicera involucrata var. ledebourii
2010 Toni Corelli

Lonicera nitida   


Lophochlaena refracta    Nodding semaphore grass,  Nodding semaphoregrass
rare native
Perennial grass (rhizomatous)

POACEAE

Lophochlaena refracta
2022 R.A. Chasey
Lophochlaena refracta
2022 R.A. Chasey
Lophochlaena refracta
2018 Claire Brown

Lotus aboriginum   


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

FABACEAE

Lotus corniculatus
2015 Charles Russell
Lotus corniculatus
2019 Nathan Taxel
Lotus corniculatus
2005 Dr. Amadej Trnkoczy

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

FABACEAE

Lotus purshianus
2013 Arcangelo Wessells
Lotus purshianus
2019 Rachelle Gray
Lotus purshianus
2020 Bob Sweatt

Lotus uliginosus    Marsh lotus
non-native
Perennial herb

FABACEAE

Lotus uliginosus
2006 Doreen L. Smith
Lotus uliginosus
2009 Phil Pullen
Lotus uliginosus
2009 Phil Pullen

Ludwigia peploides    Floating primrose willow,  Floating water primrose,  Marsh purslane
invasive non-native
Perennial herb

ONAGRACEAE

Ludwigia peploides
2022 David Strauch
Ludwigia peploides
2007 Neal Kramer
Ludwigia peploides
2012 Jean Pawek

Luina hypoleuca    Little leaf luina,  Littleleaf silverback
native
Perennial herb

ASTERACEAE

Luina hypoleuca
2018 Matt Berger
Luina hypoleuca
2018 Sierra Pacific Industries
Luina hypoleuca
2019 Matt Berger

Lupinus andersonii    Anderson's lupine
native
Perennial herb

FABACEAE

Lupinus andersonii
2006 Steve Matson
Lupinus andersonii
2019 Diane Etchison
Lupinus andersonii
2006 Steve Matson

Lupinus arboreus    Coastal bush lupine,  Yellow bush lupine
native
Shrub

FABACEAE

Lupinus arboreus
2018 Juergen Blank
Lupinus arboreus
2021 Mike Russler
Lupinus arboreus
2018 Juergen Blank

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

FABACEAE

Lupinus bicolor
2019 Gary McDonald
Lupinus bicolor
2018 Stacie Wolny
Lupinus bicolor
2019 Gary McDonald

Lupinus bicolor ssp. umbellatus    Annual lupine,  Bicolored lupine,  Miniature lupine
native
Annual, Perennial herb

FABACEAE

Lupinus bicolor ssp. umbellatus
2019 Gary McDonald
Lupinus bicolor ssp. umbellatus
2018 Stacie Wolny
Lupinus bicolor ssp. umbellatus
2019 Gary McDonald

Lupinus latifolius    Bigleaf lupine,  Broad leaf lupine,  Broadleaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius
2021 Larry Dizmang
Lupinus latifolius
Geoff Burleigh
Lupinus latifolius
2022 Irene Rosen

Lupinus latifolius ssp. latifolius    Broad leaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius ssp. latifolius
2021 John Rawlings
Lupinus latifolius ssp. latifolius
2020 Paul Aigner
Lupinus latifolius ssp. latifolius
2009 Thomas Stoughton

Lupinus littoralis    Seashore lupine
native
Perennial herb

FABACEAE

Lupinus littoralis
2019 Justin Luong
Lupinus littoralis
2021 Zoya Akulova-Barlow
Lupinus littoralis
2021 Zoya Akulova

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
2020 Julie A. Kierstead
Lupinus nanus
2019 Phyllis Fitzsimons
Lupinus nanus
2019 Mary Conway

Lupinus rivularis    Riverbank lupine
native
Perennial herb

FABACEAE

Lupinus rivularis
2019 Jonathan Lee
Lupinus rivularis
2017 Steve Matson
Lupinus rivularis
2017 Steve Matson

Luzula comosa    Common wood rush,  Hairy wood rush,  Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula comosa
2019 Matt Berger
Luzula comosa
2022 Mike Russler
Luzula comosa
2022 Mike Russler

Luzula parviflora    Small flowered wood rush,  Smallflowered woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula parviflora
2022 Dana York
Luzula parviflora
2019 David Greenberger
Luzula parviflora
2012 Aaron Arthur

Luzula subsessilis    Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula subsessilis
2021 David popp
Luzula subsessilis
2021 David popp
Luzula subsessilis
2021 David popp

Lycopodium clavatum    Running clubmoss,  Running pine
rare native

LYCOPODIACEAE

Lycopodium clavatum
2020 Wyatt Dooley
Lycopodium clavatum
2018 Jonathan Lee
Lycopodium clavatum
2021 Gabe Cashman

Lysichiton americanus    American skunkcabbage,  Yellow skunk cabbage
native
Perennial herb

ARACEAE

Lysichiton americanus
2011 Paul Preston
Lysichiton americanus
2022 R.A. Chasey
Lysichiton americanus
Albert P. Bekker 1999 California Academy of Sciences

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

LYTHRACEAE

Lythrum hyssopifolia
2019 Diane Etchison
Lythrum hyssopifolia
2016 Andrew Longman
Lythrum hyssopifolia
2021 Cynthia Powell

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

ASTERACEAE

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

Madia elegans    Common madia
native
Annual herb

ASTERACEAE

Madia elegans
2021 Jamie Spielmann
Madia elegans
2020 Diane Etchison
Madia elegans
2019 Bob Sweatt

Madia elegans ssp. elegans    Common madia
native
Annual herb

ASTERACEAE

Madia elegans ssp. elegans
2021 Jamie Spielmann
Madia elegans ssp. elegans
2020 Diane Etchison
Madia elegans ssp. elegans
2019 Bob Sweatt

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

ASTERACEAE

Madia exigua
2021 Helen Hancock
Madia exigua
2015 Neal Kramer
Madia exigua
2007 Neal Kramer

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

ASTERACEAE

Madia gracilis
2019 Ron Vanderhoff
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

Magnolia grandiflora    Southern magnolia
non-native
Tree

MAGNOLIACEAE

Magnolia grandiflora
2018 Philip Oakley Otto
Magnolia grandiflora
Nick Kurzenko
Magnolia grandiflora
2018 Philip Oakley Otto

Mahonia aquifolium    Mountain grape,  Mountaingrape,  Oregon grape
native
Shrub

BERBERIDACEAE

Mahonia aquifolium
2020 Chico Hiking Association
Mahonia aquifolium
2018 David popp
Mahonia aquifolium
2006 Louis-M. Landry

Maianthemum dilatatum    False lily of the valley,  False lily of the vally,  Pacific may lily
native
Perennial herb

RUSCACEAE

Maianthemum dilatatum
2020 Doug Allshouse
Maianthemum dilatatum
2020 Susan McDougall
Maianthemum dilatatum
2022 Dee Shea Himes

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 Stacie Wolny

Maianthemum racemosum ssp. amplexicaule    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum racemosum ssp. amplexicaule
2020 Bob Sweatt
Maianthemum racemosum ssp. amplexicaule
2018 Steve Matson
Maianthemum racemosum ssp. amplexicaule
2019 Stacie Wolny

Maianthemum stellatum    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum stellatum
2020 Bob Sweatt
Maianthemum stellatum
2020 Jean Anderson
Maianthemum stellatum
2020 Susan McDougall

Malus fusca    Oregon crab apple,  Oregon crabapple
native
Tree, Shrub

ROSACEAE

Malus fusca
2018 Adam Canter
Malus fusca
2018 Cynthia Powell
Malus fusca
2018 Cynthia Powell

Malus pumila    Paradise apple
non-native
Tree

ROSACEAE

Malus pumila
2014 Ramona Robison
Malus pumila
2018 Angelique Herman
Malus pumila
2005 Louis-M. Landry

Malva neglecta    Common mallow,  Dwarf mallow
non-native
Annual, Perennial herb

MALVACEAE

Malva neglecta
2022 Bob Sweatt
Malva neglecta
2019 Randy Huey
Malva neglecta
2022 Bob Sweatt

Marah oreganus    Coast man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah oreganus
2020 Susan McDougall
Marah oreganus
2017 James Gonsman
Marah oreganus
2016 Steve Matson

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2019 Diane Etchison
Matricaria discoidea
2019 Bob Sweatt
Matricaria discoidea
2008 Keir Morse

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

FABACEAE

Medicago arabica
2015 Chris Jaster
Medicago arabica
2015 Chris Jaster
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
2020 Bob Sweatt
Medicago sativa
2005 Louis-M. Landry
Medicago sativa
2003 Michael Charters

Melica aristata    Awned melic,  Bearded melicgrass
native
Perennial grass

POACEAE

Melica aristata
2021 David popp
Melica aristata
2022 John Rawlings
Melica aristata
2017 Belinda Lo

Melica geyeri    Geyer's onion grass,  Geyer's oniongrass
native
Perennial grass

POACEAE

Melica geyeri
2019 John Rawlings
Melica geyeri
2019 John Rawlings
Melica geyeri
2020 Robert Steers

Melica geyeri var. geyeri    Geyer's onion grass,  Geyer's oniongrass
native
Perennial grass

POACEAE

Melica geyeri var. geyeri
2019 John Rawlings
Melica geyeri var. geyeri
2019 John Rawlings
Melica geyeri var. geyeri
2020 Robert Steers

Melica harfordii    Harford melic,  Harford's melica,  Harford's oniongrass
native
Perennial grass

POACEAE

Melica harfordii
2021 Dee Shea Himes
Melica harfordii
2021 Dee Shea Himes
Melica harfordii
2021 Dee Shea Himes

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

POACEAE

Melica subulata
2020 Sara Timby
Melica subulata
2022 Ellen Uhler
Melica subulata
2022 Ellen Uhler

Melilotus alba    Yellow sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus alba
2020 Bob Sweatt
Melilotus alba
2020 Bob Sweatt
Melilotus alba
2020 Bob Sweatt

Melilotus indica    Annual yellow sweetclover
non-native
Annual herb

FABACEAE

Melilotus indica
2019 Randy Huey
Melilotus indica
2019 Randy Huey
Melilotus indica
2017 Rosalie Benitez

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

LAMIACEAE

Mentha arvensis
2003 Steve Matson
Mentha arvensis
2003 Steve Matson
Mentha arvensis
2014 Steve Matson

Mentha arvensis ssp. haplocalyx    American wild mint,  Field mint,  Marsh mint
native
Perennial herb

LAMIACEAE

Mentha arvensis ssp. haplocalyx
2003 Steve Matson
Mentha arvensis ssp. haplocalyx
2003 Steve Matson
Mentha arvensis ssp. haplocalyx
2014 Steve Matson

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
2014 James Gonsman
Mentha pulegium
2022 R.A. Chasey
Mentha pulegium
2019 Jennifer Mo

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
2022 Donald Burk
Mentha spicata
2022 Donald Burk
Mentha spicata
2014 Zoya Akulova

non-native
Perennial herb

LAMIACEAE

Mentha spicata var. spicata
2022 Donald Burk
Mentha spicata var. spicata
2022 Donald Burk
Mentha spicata var. spicata
2014 Zoya Akulova

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

Menziesia ferruginea    Mock azalea,  Rusty menziesia
native
Shrub

ERICACEAE

Menziesia ferruginea
2013 James Gonsman
Menziesia ferruginea
2011 Jean Pawek
Menziesia ferruginea
2015 Adrienne Simmons

Micranthes californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes californica
2020 Cara Wilcox
Micranthes californica
2016 Steve Matson
Micranthes californica
2016 Steve Matson

Micranthes howellii    Howell's saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Micranthes howellii
2022 Laura Julian
Micranthes howellii
2008 Keir Morse
Micranthes howellii
2008 Keir Morse

Micranthes integrifolia    Smooth leaf saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes integrifolia
2021 Art Clark
Micranthes integrifolia
2021 Art Clark
Micranthes integrifolia
2020 David popp

Micranthes marshallii    Marshall's saxifrage
rare native
Perennial herb

SAXIFRAGACEAE

Micranthes marshallii
2022 Dana York
Micranthes marshallii
2017 Barrett Jeffery
Micranthes marshallii
2017 Barrett Jeffery

Micropus californicus    Cotton top,  Micropus,  Q tips
native
Annual herb

ASTERACEAE

Micropus californicus
2020 Ron Vanderhoff
Micropus californicus
2020 Ron Vanderhoff
Micropus californicus
2020 Ron Vanderhoff

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

ASTERACEAE

Micropus californicus var. californicus
2022 Mike Russler
Micropus californicus var. californicus
2022 R.A. Chasey
Micropus californicus var. californicus
2021 Ron Vanderhoff

Microseris bigelovii    Coast microseris,  Coastal silverpuffs
native
Annual herb

ASTERACEAE

Microseris bigelovii
2022 R.A. Chasey
Microseris bigelovii
2011 Toni Corelli
Microseris bigelovii
2022 R.A. Chasey

Microseris laciniata    Cut leaved scorzonella,  Cutleaf silverpuffs
native
Perennial herb

ASTERACEAE

Microseris laciniata
2013 Gerald Carr
Microseris laciniata
2013 Gerald Carr
Microseris laciniata
2008 Gerald Carr

Microseris laciniata ssp. leptosepala    Cut leaved scorzonella,  Cutleaf silverpuffs
native
Perennial herb

ASTERACEAE

Microseris laciniata ssp. leptosepala
2013 Gerald Carr
Microseris laciniata ssp. leptosepala
2013 Gerald Carr
Microseris laciniata ssp. leptosepala
2013 Gerald Carr

Microseris laciniata ssp. siskiyouensis    Siskiyou microseris
native
Perennial herb

ASTERACEAE


Microseris laciniata var. siskiyouensis    Cut leaved scorzonella,  Cutleaf silverpuffs
native
Perennial herb

ASTERACEAE

Microseris laciniata var. siskiyouensis
2013 Gerald Carr
Microseris laciniata var. siskiyouensis
2013 Gerald Carr
Microseris laciniata var. siskiyouensis
2008 Gerald Carr

Microseris nutans    Nodding microceris,  Nodding scorzonella,  Perennial nodding microseris
native
Perennial herb

ASTERACEAE

Microseris nutans
2020 Bob Sweatt
Microseris nutans
2022 Steve Matson
Microseris nutans
2020 Bob Sweatt

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Microsteris gracilis
2020 Chico Hiking Association
Microsteris gracilis
2003 Steve Matson
Microsteris gracilis
2003 Steve Matson

Mimulus aurantiacus    Orange Bush Monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
2019 Gary McDonald
Mimulus aurantiacus
2019 Stacie Wolny
Mimulus aurantiacus
2019 Gary McDonald

Mimulus cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Mimulus cardinalis
2021 Mike Russler
Mimulus cardinalis
2019 Ron Vanderhoff
Mimulus cardinalis
2021 Mike Russler

Mimulus dentatus    Tooth leaved monkeyflower
native
Perennial herb

PHRYMACEAE

Mimulus dentatus
2022 Dana York
Mimulus dentatus
and Buff Corsi 2013 California Academy of Sciences
Mimulus dentatus
2001 Steve Schoenig

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 Ron Vanderhoff

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

PHRYMACEAE

Mimulus guttatus var. guttatus
2019 Stacie Wolny
Mimulus guttatus var. guttatus
2015 James Gonsman
Mimulus guttatus var. guttatus
2019 Ron Vanderhoff

Mimulus moschatus    Musk monkeyflower
native
Perennial herb

PHRYMACEAE

Mimulus moschatus
2014 James Gonsman
Mimulus moschatus
2019 Matt Berger
Mimulus moschatus
2018 Julie Kierstead Nelson

Minuartia californica    California Sandwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia californica
2021 Steve Matson
Minuartia californica
2022 Ryan O'Dell
Minuartia californica
2021 David popp

Minuartia douglasii    Douglas' Stitchwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia douglasii
2022 Steve Matson
Minuartia douglasii
2022 Steve Matson
Minuartia douglasii
2021 R.A. Chasey

Minuartia howellii    Howell's sandwort,  Howell's stitchwort
native
Perennial herb

CARYOPHYLLACEAE

Minuartia howellii
2008 Nathan Bello
Minuartia howellii
2008 Nathan Bello
Minuartia howellii
2008 Nathan Bello

Modiola caroliniana    Carolina bristle mallow,  Carolina bristlemallow
non-native
Perennial herb

MALVACEAE

Modiola caroliniana
2020 David Wolfson
Modiola caroliniana
2020 Asa B Spade
Modiola caroliniana
2019 Ron Vanderhoff

Moehringia macrophylla    Large leaved sandwort,  Largeleaf sandwort
native
Perennial herb

CARYOPHYLLACEAE

Moehringia macrophylla
2019 Glenn Fine
Moehringia macrophylla
2018 Matt Berger
Moehringia macrophylla
2016 Mary Merriman

Mollugo verticillata    Green carpetweed,  Indian chickweed
non-native
Annual herb

MOLLUGINACEAE

Mollugo verticillata
2020 Sara Sweet
Mollugo verticillata
2020 Sara Sweet
Mollugo verticillata
2021 R.A. Chasey

Monardella sheltonii    Coyote mint,  Shelton's coyote mint,  Shelton's monardella
native
Perennial herb

LAMIACEAE

Monardella sheltonii
2020 Chico Hiking Association
Monardella sheltonii
2009 Barry Breckling
Monardella sheltonii
2008 Keir Morse

Monardella villosa    Coyote mint
native
Perennial herb

LAMIACEAE

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

Monardella villosa ssp. sheltonii    Coyote mint,  Shelton's coyote mint,  Shelton's monardella
native
Perennial herb

LAMIACEAE

Monardella villosa ssp. sheltonii
2020 Chico Hiking Association
Monardella villosa ssp. sheltonii
2009 Barry Breckling
Monardella villosa ssp. sheltonii
2008 Keir Morse

Moneses uniflora    Oneflower wintergreen,  Single delight,  Woodnymph
rare native
Perennial herb

ERICACEAE

Moneses uniflora
2018 Jonathan Lee
Moneses uniflora
2011 Louis-M. Landry
Moneses uniflora
2015 Dana York

Moneses uniflora var. reticulata    Oneflower wintergreen,  Single delight,  Woodnymph
rare native
Perennial herb

ERICACEAE

Moneses uniflora var. reticulata
2018 Jonathan Lee
Moneses uniflora var. reticulata
2011 Louis-M. Landry
Moneses uniflora var. reticulata
2015 Dana York

Monotropa hypopithys    Pinesap
native
Perennial herb (mycoparasitic)

ERICACEAE

Monotropa hypopithys
2020 R.A. Chasey
Monotropa hypopithys
2010 Keir Morse
Monotropa hypopithys
2016 Wynn Anderson

Monotropa uniflora    Ghost pipe
rare native
Perennial herb (mycoparasitic)

ERICACEAE

Monotropa uniflora
2022 Mary Ann Machi
Monotropa uniflora
2019 Jonathan Lee
Monotropa uniflora
2022 Mary Ann Machi

Montia diffusa    Diffuse miner's lettuce,  Spreading minerslettuce
native
Annual herb

MONTIACEAE

Montia diffusa
2020 Alexandra Kookootsedes
Montia diffusa
2020 Alexandra Kookootsedes
Montia diffusa
2018 Alexandra Kookootsedes

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

MONTIACEAE

Montia fontana
2019 Ken Hickman
Montia fontana
2023 Alaine Arslan
Montia fontana
2006 Steve Matson

Montia howellii    Howell's minerslettuce,  Howell's montia
rare native
Annual herb

MONTIACEAE

Montia howellii
2019 Jonathan Lee
Montia howellii
2014 Sierra Pacific Industries
Montia howellii
2019 Gabe Cashman

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

MONTIACEAE

Montia minor
2019 Ken Hickman
Montia minor
2023 Alaine Arslan
Montia minor
2006 Steve Matson

Montia parvifolia    Littleleaf minerslettuce,  Showy rock montia
native
Perennial herb

MONTIACEAE

Montia parvifolia
2020 Bob Sweatt
Montia parvifolia
2020 Bob Sweatt
Montia parvifolia
2017 Steve Matson

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

MONTIACEAE

Montia sibirica
2017 Steve Matson
Montia sibirica
2017 Steve Matson
Montia sibirica
2015 James Gonsman

Muhlenbergia filiformis    Pullup muhly,  Slender muhly
native
Annual, Perennial grass

POACEAE

Muhlenbergia filiformis
2021 R.A. Chasey
Muhlenbergia filiformis
2020 John Rawlings
Muhlenbergia filiformis
2020 Susan McDougall

Myosotis discolor    Changing forget me not,  yellow and blue forget-me-not
non-native
Annual herb

BORAGINACEAE

Myosotis discolor
2022 Bob Sweatt
Myosotis discolor
2019 Randy Huey
Myosotis discolor
2022 Bob Sweatt

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
2018 MCOSD EDRR

Myosotis sylvatica    Woodland forget me not
invasive non-native
Perennial herb

BORAGINACEAE

Myosotis sylvatica
2004 Dr. Amadej Trnkoczy
Myosotis sylvatica
2011 Louis-M. Landry
Myosotis sylvatica
2011 Louis-M. Landry

Myrica californica    California wax myrtle
native
Tree, Shrub

MYRICACEAE

Myrica californica
2008 Neal Kramer
Myrica californica
2008 Keir Morse
Myrica californica
2022 Cynthia Powell


non-native
Perennial herb (bulb)

AMARYLLIDACEAE

Narcissus pseudonarcissus
2018 Abbot Chambers
Narcissus pseudonarcissus
2019 Colleen Herr
Narcissus pseudonarcissus
2007 Ram Vasudev

Nasturtium officinale    Watercress
native
Perennial herb (aquatic)

BRASSICACEAE

Nasturtium officinale
2019 Patrick Furtado
Nasturtium officinale
2019 Diane Etchison
Nasturtium officinale
2016 Joan Hampton

Navarretia squarrosa    Skunkbush,  Skunkweed
native
Annual herb

POLEMONIACEAE

Navarretia squarrosa
2019 Marisa Persaud
Navarretia squarrosa
2019 Patrick Furtado
Navarretia squarrosa
2013 Zoya Akulova

Nemophila menziesii    Baby blue eyes
native
Annual herb

HYDROPHYLLACEAE

Nemophila menziesii
2019 Matt Berger
Nemophila menziesii
2019 Diane Etchison
Nemophila menziesii
2010 Zoya Akulova

Nemophila parviflora    Small flowered nemophila,  Smallflower nemophila
native
Annual herb

HYDROPHYLLACEAE

Nemophila parviflora
2022 Dana York
Nemophila parviflora
2022 John Rawlings
Nemophila parviflora
2022 Eric Koberle

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
2007 Neal Kramer

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

native
Tree, Shrub

FAGACEAE

Notholithocarpus densiflorus var. echinoides
2019 Joey Santore
Notholithocarpus densiflorus var. echinoides
2019 Susan McDougall
Notholithocarpus densiflorus var. echinoides
2013 Neal Kramer

Nuphar luteum   


Nuphar polysepala    Rocky mountain pond-lily
native
Perennial herb (aquatic)

NYMPHAEACEAE

Nuphar polysepala
2019 Julie Kierstead Nelson
Nuphar polysepala
2019 Julie Kierstead Nelson
Nuphar polysepala
2018 Chico Hiking Association

Oemleria cerasiformis    Indian plum,  Oso berry
native
Shrub

ROSACEAE

Oemleria cerasiformis
2019 Julie A. Kierstead
Oemleria cerasiformis
2019 Stacie Wolny
Oemleria cerasiformis
2019 Patrick Furtado

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 glazioviana    Red sepaled evening primrose,  Redsepal evening primrose
non-native
Perennial herb

ONAGRACEAE

Oenothera glazioviana
2007 Dr. Amadej Trnkoczy
Oenothera glazioviana
2007 Dr. Amadej Trnkoczy
Oenothera glazioviana
2007 Dr. Amadej Trnkoczy

Oenothera wolfii    Wolf's evening primrose
rare native
Perennial herb

ONAGRACEAE

Oenothera wolfii
2021 Scott Yarger
Oenothera wolfii
2001 Lindsay Herrera
Oenothera wolfii
1995 Saint Mary's College of California

non-native
Perennial herb

LAMIACEAE

Origanum vulgare ssp. hirtum
2018 Ron Vanderhoff
Origanum vulgare ssp. hirtum
2018 Ron Vanderhoff
Origanum vulgare ssp. hirtum
2020 Jennifer Mo

Orobanche fasciculata    Clustered broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche fasciculata
2016 Jim Xerogeanes
Orobanche fasciculata
2020 Bob Sweatt
Orobanche fasciculata
2016 Yolanda Waddell

Orobanche uniflora    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora
2022 Helen Hancock
Orobanche uniflora
2022 Helen Hancock
Orobanche uniflora
2022 Dana York

Orobanche uniflora var. purpurea    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora var. purpurea
2022 Helen Hancock
Orobanche uniflora var. purpurea
2022 Helen Hancock
Orobanche uniflora var. purpurea
2022 Dana York

Orobanche uniflora var. sedii    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora var. sedii
2022 Helen Hancock
Orobanche uniflora var. sedii
2022 Helen Hancock
Orobanche uniflora var. sedii
2022 Dana York

Osmorhiza berteroi    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza berteroi
2021 Mike Russler
Osmorhiza berteroi
2020 Bob Sweatt
Osmorhiza berteroi
2020 Bob Sweatt

Osmorhiza occidentalis    Mountain sweet cicely,  Western sweet cicely,  Western sweetroot
native
Perennial herb

APIACEAE

Osmorhiza occidentalis
2020 Bob Sweatt
Osmorhiza occidentalis
2008 Keir Morse
Osmorhiza occidentalis
2015 Barry Breckling

Osmorhiza purpurea    Purple sweet cicely,  Purple sweetroot
native
Perennial herb

APIACEAE

Osmorhiza purpurea
2014 Susan McDougall
Osmorhiza purpurea
2013 Steve Matson
Osmorhiza purpurea
2013 Steve Matson

Oxalis albicans ssp. pilosa    Hairy wood sorrel
native
Annual herb

OXALIDACEAE

Oxalis albicans ssp. pilosa
2022 R.A. Chasey
Oxalis albicans ssp. pilosa
2009 Avis Boutell
Oxalis albicans ssp. pilosa
2022 Cynthia Powell

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 incarnata    Crimson woodsorrel
non-native
Perennial herb

OXALIDACEAE

Oxalis incarnata
2022 Friends of Five Creeks volunteers
Oxalis incarnata
2018 MCOSD EDRR
Oxalis incarnata
2012 Yves Antoinette

Oxalis oregana    Redwood sorrel
native
Perennial herb

OXALIDACEAE

Oxalis oregana
2020 Kim Cabrera
Oxalis oregana
2021 Cyril Guyot
Oxalis oregana
2020 Janice Kuch

Oxalis suksdorfii    Suksdorf woodsorrel
rare native
Perennial herb

OXALIDACEAE

Oxalis suksdorfii
2020 Kolby Lundgren
Oxalis suksdorfii
2020 Kolby Lundgren
Oxalis suksdorfii
2019 Jonathan Lee

Ozomelis trifida    Three parted miterwort
native
Perennial herb

SAXIFRAGACEAE

Ozomelis trifida
1986 Dan Post
Ozomelis trifida
2004 Norman Jensen

Packera bolanderi var. bolanderi    Bolander's ragwort,  Seacoast ragwort
rare native
Perennial herb

ASTERACEAE

Packera bolanderi var. bolanderi
2009 Gerald Carr
Packera bolanderi var. bolanderi
2009 Gerald Carr
Packera bolanderi var. bolanderi
2007 Dean Wm. Taylor, Ph.D.

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

POACEAE

Panicum acuminatum
2020 Julie A. Kierstead
Panicum acuminatum
2001 Julie Kierstead Nelson
Panicum acuminatum
2010 Charles Patterson

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

POACEAE

Panicum acuminatum var. acuminatum
2020 Julie A. Kierstead
Panicum acuminatum var. acuminatum
2001 Julie Kierstead Nelson
Panicum acuminatum var. acuminatum
2010 Charles Patterson

Panicum pacificum    Pacific panic grass
native
Perennial grass

POACEAE

Panicum pacificum
2021 R.A. Chasey
Panicum pacificum
2016 Steve Matson
Panicum pacificum
2016 Steve Matson

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

OROBANCHACEAE

Parentucellia viscosa
2018 Parker Santiago
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
2006 Steven Thorsted
Paspalum dilatatum
2009 Barry Rice

Pectiantia ovalis    Coastal miterwort
native
Perennial herb

SAXIFRAGACEAE

Pectiantia ovalis
2022 Catherine Chang
Pectiantia ovalis
2015 Vernon Smith
Pectiantia ovalis
2011 Zoya Akulova

Penstemon rattanii    Rattan's beardtongue
native
Perennial herb

PLANTAGINACEAE

Penstemon rattanii
2021 Larry Nichols
Penstemon rattanii
2015 Jimmie Sierra
Penstemon rattanii
2021 Larry Nichols

Penstemon rattanii var. rattanii    Rattan's beardtongue
native
Perennial herb

PLANTAGINACEAE

Penstemon rattanii var. rattanii
2021 Larry Nichols
Penstemon rattanii var. rattanii
2021 Larry Nichols
Penstemon rattanii var. rattanii
2013 Dana York

native
Fern

PTERIDACEAE

Pentagramma triangularis ssp. triangularis
2019 Ron Vanderhoff
Pentagramma triangularis ssp. triangularis
2008 Keir Morse
Pentagramma triangularis ssp. triangularis
2014 James Gonsman

Perideridia gairdneri    Gairdner's yampah,  Gardner's yampah
native
Perennial herb

APIACEAE

Perideridia gairdneri
2018 Matthew Allen
Perideridia gairdneri
2021 Larry Dizmang
Perideridia gairdneri
2021 Mary Conway

Perideridia kelloggii    Kellogg's yampah,  Yampah
native
Perennial herb

APIACEAE

Perideridia kelloggii
2022 Diana Wahl
Perideridia kelloggii
2022 Suzanne L. Weakley
Perideridia kelloggii
2022 R.A. Chasey

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    Arctic sweet coltsfoot
native
Perennial herb

ASTERACEAE

Petasites frigidus
2020 Trevor Schalla
Petasites frigidus
2018 Saskia Raether
Petasites frigidus
2011 Ron Wolf

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

ASTERACEAE

Petasites frigidus var. palmatus
2022 Zoya Akulova-Barlow
Petasites frigidus var. palmatus
2020 Susan McDougall
Petasites frigidus var. palmatus
2019 Steve Conger

Petrorhagia dubia    Hairypink,  Pink grass,  Wilding pink
non-native
Annual herb

CARYOPHYLLACEAE

Petrorhagia dubia
2016 Bill Thiessen
Petrorhagia dubia
2019 Chico Hiking Association
Petrorhagia dubia
2019 Joe Engelbrecht

Phacelia bolanderi    Bolander's phacelia,  Redwood phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia bolanderi
2021 Don Hollander
Phacelia bolanderi
2017 Peter Warner
Phacelia bolanderi
2009 Zoya Akulova

Phacelia heterophylla ssp. virgata    Varied leaf phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia heterophylla ssp. virgata
2019 Susan McDougall
Phacelia heterophylla ssp. virgata
2019 Susan McDougall
Phacelia heterophylla ssp. virgata
2009 Barry Breckling

Phacelia nemoralis    Shade phacelia,  Woods phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia nemoralis
2020 Ken Hickman
Phacelia nemoralis
2018 Jennifer Wheeler
Phacelia nemoralis
2016 Bruce Homer-Smith

Phacelia ramosissima    Branching phacelia
native
Perennial herb

HYDROPHYLLACEAE

Phacelia ramosissima
2005 Steve Matson
Phacelia ramosissima
2022 Rosalind Helfand
Phacelia ramosissima
2020 Ron Vanderhoff

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

POACEAE

Phalaris aquatica
2017 James Bailey
Phalaris aquatica
2019 Nicole Leatherman
Phalaris aquatica
2001 CDFA

Phalaris arundinacea    Reed canarygrass
native
Perennial grass

POACEAE

Phalaris arundinacea
2018 Michelle Forys
Phalaris arundinacea
2020 Donald Burk
Phalaris arundinacea
2022 Dianne Lake

Phalaris californica    California canarygrass,  Canarygrass
native
Perennial grass

POACEAE

Phalaris californica
2017 Toni Corelli
Phalaris californica
2017 Toni Corelli
Phalaris californica
2018 Brian Charles

Phalaris minor    Little seed canarygrass,  Littleseed canarygrass,  Mediterranean canarygrass
non-native
Annual grass

POACEAE

Phalaris minor
2014 Steve Matson
Phalaris minor
2014 Steve Matson
Phalaris minor
2014 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

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

POACEAE

Phalaris tuberosa
2017 James Bailey
Phalaris tuberosa
2019 Nicole Leatherman
Phalaris tuberosa
2001 CDFA

Philadelphus californicus    Lewis' mock orange,  Mock orange,  Wild mock orange
native
Shrub

HYDRANGEACEAE

Philadelphus californicus
2016 Steve Matson
Philadelphus californicus
2016 Steve Matson
Philadelphus californicus
2022 John Rawlings

Philadelphus lewisii    Lewis' mock orange,  Mock orange,  Wild mock orange
native
Shrub

HYDRANGEACEAE

Philadelphus lewisii
2016 Steve Matson
Philadelphus lewisii
2016 Steve Matson
Philadelphus lewisii
2022 John Rawlings

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

POACEAE

Phleum pratense
2019 Julie Kierstead Nelson
Phleum pratense
2005 Louis-M. Landry
Phleum pratense
2008 Keir Morse

Phlox diffusa    Spreading phlox
native
Perennial herb

POLEMONIACEAE

Phlox diffusa
2018 Saskia Raether
Phlox diffusa
2019 Talila Golan
Phlox diffusa
2009 Keir Morse

Phlox diffusa ssp. diffusa    Spreading phlox
native
Perennial herb

POLEMONIACEAE

Phlox diffusa ssp. diffusa
2018 Saskia Raether
Phlox diffusa ssp. diffusa
2019 Talila Golan
Phlox diffusa ssp. diffusa
2009 Keir Morse

Phlox speciosa    Showy phlox
native
Perennial herb

POLEMONIACEAE

Phlox speciosa
2019 Glenn Fine
Phlox speciosa
2020 David Self
Phlox speciosa
2020 Julie A. Kierstead

Phoradendron villosum    Mistletoe
native
Shrub (parasitic)

VISCACEAE

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

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

Picea sitchensis    Sitka spruce
native
Tree

PINACEAE

Picea sitchensis
2018 Richard Spjut
Picea sitchensis
2016 Steve Matson
Picea sitchensis
2021 Julie A. Kierstead

Pinus attenuata    Knobcone pine,  Scrub pine
native
Tree

PINACEAE

Pinus attenuata
2009 Ron Vanderhoff
Pinus attenuata
2018 Hayley Ross
Pinus attenuata
2008 Keir Morse

Pinus contorta    Beach pine,  Lodgepole pine
native
Tree

PINACEAE

Pinus contorta
2019 Jay Chamberlain
Pinus contorta
2018 Tricia Bippus
Pinus contorta
2019 Greg Kareofelas

Pinus halepensis    Aleppo pine
non-native
Tree

PINACEAE

Pinus halepensis
2020 Angelique Herman
Pinus halepensis
2018 Ron Vanderhoff
Pinus halepensis
2020 Ron Vanderhoff

Pinus jeffreyi    Jeffrey pine
native
Tree

PINACEAE

Pinus jeffreyi
2019 Susan McDougall
Pinus jeffreyi
2016 Dave Brandt
Pinus jeffreyi
2019 Julie A. Kierstead

Pinus lambertiana    Sugar pine
native
Tree

PINACEAE

Pinus lambertiana
2021 R.A. Chasey
Pinus lambertiana
2020 Susan McDougall
Pinus lambertiana
2021 David popp

Pinus patula    Mexican weeping pine
non-native
Tree

PINACEAE


Pinus radiata    Monterey pine
native
Tree

PINACEAE

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

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

ORCHIDACEAE

Piperia elegans
2018 Alexandra Kookootsedes
Piperia elegans
2022 Julia Larke
Piperia elegans
2022 Hunter Breck

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

Pityopus californica    California pinefoot,  Pityopus
native
Perennial herb (mycoparasitic)

ERICACEAE

Pityopus californica
2010 Sean B. Smith

rare native
Perennial herb (mycoparasitic)

ERICACEAE

Pityopus californicus
2022 Hunter Breck
Pityopus californicus
2022 Hunter Breck
Pityopus californicus
2015 Debra L. Cook

Pityrogramma triangularis    Gold back fern
native
Fern

PTERIDACEAE

Pityrogramma triangularis
2019 Ron Vanderhoff
Pityrogramma triangularis
2008 Keir Morse
Pityrogramma triangularis
2014 James Gonsman

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

BORAGINACEAE

Plagiobothrys nothofulvus
2018 Karen Scheuermann
Plagiobothrys nothofulvus
2019 Ron Vanderhoff
Plagiobothrys nothofulvus
2019 Ron Vanderhoff

Plantago bigelovii ssp. bigelovii    Annual coast plantago,  Coastal plantain,  Long leaf plantain
native
Annual herb

PLANTAGINACEAE

Plantago bigelovii ssp. bigelovii
2017 Barbara Boethling
Plantago bigelovii ssp. bigelovii
2019 Ron Vanderhoff
Plantago bigelovii ssp. bigelovii
2020 Ron Vanderhoff

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 elongata    Annual coast plantago,  Coastal plantain,  Long leaf plantain
native
Annual herb

PLANTAGINACEAE

Plantago elongata
2017 Barbara Boethling
Plantago elongata
2019 Ron Vanderhoff
Plantago elongata
2020 Ron Vanderhoff

Plantago hirtella var. galeottiana    Mexican plantain,  Naked plantain,  Tall coastal plantain
native
Perennial herb

PLANTAGINACEAE

Plantago hirtella var. galeottiana
2019 Patrick Furtado
Plantago hirtella var. galeottiana
2022 Dianne Lake
Plantago hirtella var. galeottiana
2009 Toni Corelli

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

PLANTAGINACEAE

Plantago lanceolata
2017 Gary McDonald
Plantago lanceolata
2019 Joe Engelbrecht
Plantago lanceolata
2019 Joe Engelbrecht

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
2019 Bob Sweatt
Plantago major
2009 Barry Breckling
Plantago major
2013 Debra L. Cook

Plantago maritima    Alkali plantain,  Goose tongue,  Maritime plantain
native
Perennial herb

PLANTAGINACEAE

Plantago maritima
2018 Adam Chasey
Plantago maritima
2021 Jamie Spielmann
Plantago maritima
2020 John Rawlings

Plantago subnuda    Mexican plantain,  Naked plantain,  Tall coastal plantain
native
Perennial herb

PLANTAGINACEAE

Plantago subnuda
2019 Patrick Furtado
Plantago subnuda
2022 Dianne Lake
Plantago subnuda
2009 Toni Corelli

Plectritis congesta    Sea blush,  Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta
2022 Richard Sullivan
Plectritis congesta
2022 Richard Sullivan
Plectritis congesta
2015 Aaron Schusteff

Plectritis congesta ssp. brachystemon    Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta ssp. brachystemon
2005 Steve Matson
Plectritis congesta ssp. brachystemon
2011 Jorg & Mimi Fleige
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

Pleuricospora fimbriolata    Fringed pinesap
native
Perennial herb (mycoparasitic)

ERICACEAE

Pleuricospora fimbriolata
2020 Shane Hanofee
Pleuricospora fimbriolata
2019 Peter Warner
Pleuricospora fimbriolata
2005 Brent Miller

Pleuropogon refractus    Nodding semaphore grass,  Nodding semaphoregrass
rare native
Perennial grass (rhizomatous)

POACEAE

Pleuropogon refractus
2022 R.A. Chasey
Pleuropogon refractus
2022 R.A. Chasey
Pleuropogon refractus
2018 Claire Brown

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 compressa    Canada blue grass,  Canada bluegrass
non-native
Perennial grass

POACEAE

Poa compressa
2006 Louis-M. Landry
Poa compressa
2015 David popp
Poa compressa
2006 Louis-M. Landry

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 kelloggii    Kellogg's bluegrass,  Redwood blue grass
native
Perennial grass

POACEAE

Poa kelloggii
2021 Chris Brant
Poa kelloggii
2022 John Rawlings
Poa kelloggii
2022 John Rawlings

Poa piperi    Piper's blue grass,  Piper's bluegrass
rare native
Perennial grass (rhizomatous)

POACEAE

Poa piperi
2018 Dana York
Poa piperi
2018 Dana York
Poa piperi
2018 Dana York

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

POACEAE

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

Poa 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

Poa trivialis    Rough blue grass,  Rough bluegrass
non-native
Perennial grass

POACEAE

Poa trivialis
2006 Greta Murdoff

Polycarpon tetraphyllum    Four leaved all seed,  Four leaved allseed,  Four leaved polycarp
non-native
Annual herb

CARYOPHYLLACEAE

Polycarpon tetraphyllum
2020 Ron Vanderhoff
Polycarpon tetraphyllum
2019 Ron Vanderhoff
Polycarpon tetraphyllum
2020 Ron Vanderhoff

Polygala californica    California Milkwort
native
Perennial herb

POLYGALACEAE

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

native

POLYGALACEAE

Polygala cornuta
2021 Jamie Spielmann
Polygala cornuta
2022 Julie A. Kierstead
Polygala cornuta
2020 Aaron Echols

Polygonum argyrocoleon    Persian knotweed,  Silver sheath knotweed,  Silversheath knotweed
non-native
Annual herb

POLYGONACEAE

Polygonum argyrocoleon
2020 Ron Vanderhoff
Polygonum argyrocoleon
2017 Neal Kramer
Polygonum argyrocoleon
2018 Ron Vanderhoff

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

Polygonum douglasii    Douglas' knotweed
native
Annual herb

POLYGONACEAE

Polygonum douglasii
2020 Bob Sweatt
Polygonum douglasii
2016 Judy and Barry Breckling
Polygonum douglasii
2003 Michael Charters

native
Annual herb

POLYGONACEAE

Polygonum douglasii ssp. spergulariiforme
2021 Dana York
Polygonum douglasii ssp. spergulariiforme
2021 Dana York
Polygonum douglasii ssp. spergulariiforme
2008 Sierra Pacific Industries

Polygonum paronychia    Beach knotweed,  Dune knotweed
native
Perennial herb

POLYGONACEAE

Polygonum paronychia
2020 Melissa Mooney
Polygonum paronychia
2014 James Gonsman
Polygonum paronychia
2017 Adam Chasey

Polygonum spergulariiforme    Spurry knotweed
native
Annual herb

POLYGONACEAE

Polygonum spergulariiforme
2021 Dana York
Polygonum spergulariiforme
2021 Dana York
Polygonum spergulariiforme
2008 Sierra Pacific Industries

Polypodium californicum    California polypody
native
Fern

POLYPODIACEAE

Polypodium californicum
2020 Ron Vanderhoff
Polypodium californicum
2021 Ron Vanderhoff
Polypodium californicum
2022 Suzanne L. Weakley

Polypodium glycyrrhiza    Licorice fern
native
Fern

POLYPODIACEAE

Polypodium glycyrrhiza
2014 BOB CASE
Polypodium glycyrrhiza
2022 Mary Conway
Polypodium glycyrrhiza
2014 BOB CASE

Polypodium scouleri    Leather fern,  Leather leaf fern,  Leathery polypody
native
Fern

POLYPODIACEAE

Polypodium scouleri
2018 Gregory Arena
Polypodium scouleri
2021 R.A. Chasey
Polypodium scouleri
2022 David Strauch

Polypogon australis    Chilean beard grass,  Chilean rabbitsfoot grass
non-native
Perennial grass

POACEAE

Polypogon australis
2018 Elliot Gunnison
Polypogon australis
2020 David popp
Polypogon australis
2018 Elliot Gunnison

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

POACEAE

Polypogon monspeliensis
2020 Edith Allen
Polypogon monspeliensis
2021 Ron Vanderhoff
Polypogon monspeliensis
2014 Steve Matson

Polystichum imbricans    Cliff sword fern,  Narrow leaved sword fern,  Narrowleaf swordfern
native
Fern

DRYOPTERIDACEAE

Polystichum imbricans
2009 Ron Vanderhoff
Polystichum imbricans
2018 David popp
Polystichum imbricans
2015 Robert Barnard

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 alba    Silver poplar,  White poplar
non-native
Tree