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
2008 Forest & Kim Starr
Abelia Xgrandiflora
2008 Forest & Kim Starr

Abies grandis    Grand fir
native
Tree

PINACEAE

Abies grandis
2008 Timothy D. Ives
Abies grandis
2015 Zoya Akulova
Abies grandis
2015 Susan McDougall

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
2019 Mary Conway

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

NYCTAGINACEAE

Abronia umbellata
2018 Mary Conway
Abronia umbellata
2018 Ken Hickman
Abronia umbellata
2019 Lenihan Mazur

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

NYCTAGINACEAE

Abronia umbellata var. breviflora
2013 Asa Spade
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
2008 Neal Kramer
Acacia dealbata
2004 Steve Matson
Acacia dealbata
2010 Neal Kramer

Acacia mearnsii    Black wattle
non-native
Tree, Shrub

FABACEAE

Acacia mearnsii
2015 Ron Vanderhoff
Acacia mearnsii
2017 Zoya Akulova
Acacia mearnsii
2019 Ron Vanderhoff

Acer circinatum    Vine maple
native
Tree, Shrub

SAPINDACEAE

Acer circinatum
2007 Shawn DeCew
Acer circinatum
2012 Julie Kierstead Nelson
Acer circinatum
2018 Kyle Johnson

Acer macrophyllum    Big leaf maple,  Bigleaf maple
native
Tree

SAPINDACEAE

Acer macrophyllum
2020 Christopher Brown
Acer macrophyllum
2020 Diane Etchison
Acer macrophyllum
2018 Ron Vanderhoff

Achillea millefolium    Common yarrow
native
Perennial herb

ASTERACEAE

Achillea millefolium
2017 Diane Etchison
Achillea millefolium
2019 Margot Cunningham
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 Chico Hiking Association
Acmispon parviflorus
2019 Ron Vanderhoff
Acmispon parviflorus
2019 Chico Hiking Association

Actaea rubra    Red baneberry,  Western baneberry
native
Perennial herb

RANUNCULACEAE

Actaea rubra
2002 Gerald Carr
Actaea rubra
2019 John Rawlings
Actaea rubra
2004 Jeff Abbas

Adenocaulon bicolor    American trailplant,  Trail plant
native
Perennial herb

ASTERACEAE

Adenocaulon bicolor
2008 Keir Morse
Adenocaulon bicolor
2014 John Doyen
Adenocaulon bicolor
2018 Julie Kierstead Nelson

Adiantum aleuticum    Five finger fern,  Five finger maidenhair
native
Fern

PTERIDACEAE

Adiantum aleuticum
2008 Rodney W. Lacey
Adiantum aleuticum
2018 Neal Kramer
Adiantum aleuticum
Sherry Ballard2001 California Academy of Sciences

Adiantum pedatum    Five finger fern,  Five finger maidenhair
native
Fern

PTERIDACEAE

Adiantum pedatum
2008 Rodney W. Lacey
Adiantum pedatum
2018 Neal Kramer
Adiantum pedatum
Sherry Ballard2001 California Academy of Sciences

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

ASTERACEAE

Ageratina occidentalis
2014 James Gonsman
Ageratina occidentalis
2016 mark kircher
Ageratina occidentalis
2019 Chico Hiking Association

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

ASTERACEAE

Agoseris apargioides var. eastwoodiae
2017 John Doyen
Agoseris apargioides var. eastwoodiae
2011 Steven Perry
Agoseris apargioides var. eastwoodiae
2013 Neal Kramer

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

ASTERACEAE

Agoseris grandiflora
2016 Keir Morse
Agoseris grandiflora
2020 R.A. Chasey
Agoseris grandiflora
2015 John Doyen

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

POACEAE

Agrostis alba
2011 Barry Breckling
Agrostis alba
2011 Barry Breckling
Agrostis alba
2005 Steve Matson

Agrostis capillaris    Colonial bentgrass
non-native
Perennial grass

POACEAE

Agrostis capillaris
2009 Zoya Akulova
Agrostis capillaris
2005 Steve Matson
Agrostis capillaris
2005 Steve Matson

Agrostis exarata    Spike bentgrass,  Spike redtop
native
Perennial grass

POACEAE

Agrostis exarata
2008 Keir Morse
Agrostis exarata
2009 Zoya Akulova
Agrostis exarata
2018 Neal Kramer

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

POACEAE

Agrostis gigantea
2011 Barry Breckling
Agrostis gigantea
2011 Barry Breckling
Agrostis gigantea
2005 Steve Matson

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

POACEAE

Agrostis hallii
2016 Robert Steers
Agrostis hallii
2016 Robert Steers
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
2016 Robert Steers
Agrostis hallii var. hallii
2016 Robert Steers
Agrostis hallii var. hallii
2005 Steve Matson

Agrostis idahoensis    Colonial bentgrass,  Idaho bentgrass
native
Perennial grass

POACEAE

Agrostis idahoensis
2005 Steve Matson
Agrostis idahoensis
2016 Keir Morse
Agrostis idahoensis
2005 Michael Charters

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

POACEAE

Agrostis microphylla
1998 Dean Wm. Taylor
Agrostis microphylla
2005 Steve Matson
Agrostis microphylla
2005 Steve Matson

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
2009 Zoya Akulova
Agrostis tenuis var. aristata
2005 Steve Matson
Agrostis tenuis var. aristata
2005 Steve Matson

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

POACEAE

Aira caryophyllea
2004 Carol W. Witham
Aira caryophyllea
2009 Keir Morse
Aira caryophyllea
2010 Zoya Akulova

Aira praecox    Yellow hairgrass
invasive non-native
Annual grass

POACEAE

Aira praecox
2010 National Park Service
Aira praecox
2018 Ken Hickman
Aira praecox
2009 Zoya Akulova

Allium   


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

ALLIACEAE

Allium falcifolium
2006 David McClurg
Allium falcifolium
2008 Neal Kramer
Allium falcifolium
2017 Adam Chasey

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
2006 Steve Matson
Allotropa virgata
2019 Matt Berger
Allotropa virgata
2018 Wendy Smit

Alnus rhombifolia    White alder
native
Tree

BETULACEAE

Alnus rhombifolia
2014 Garth Wadsworth
Alnus rhombifolia
2014 Zoya Akulova
Alnus rhombifolia
2020 Angelique Herman

Alnus rubra    Oregon alder,  Red alder
native
Tree, Shrub

BETULACEAE

Alnus rubra
2007 Neal Kramer
Alnus rubra
2016 Susan McDougall
Alnus rubra
2012 Zoya Akulova

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

POACEAE

Alopecurus aequalis
2003 Steve Matson
Alopecurus aequalis
2008 Keir Morse
Alopecurus aequalis
2008 Keir Morse

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
2003 Charles E. Jones
Amaryllis belladonna
2016 Camille Nowell
Amaryllis belladonna
2008 Dr. Mark S. Brunell

Ambrosia chamissonis    Beach bur,  Silver beachweed
native
Perennial herb

ASTERACEAE

Ambrosia chamissonis
2016 John Doyen
Ambrosia chamissonis
2018 Andy Jones
Ambrosia chamissonis
2006 Matt Below

Amelanchier alnifolia    Saskatoon serviceberry,  Service berry
native
Shrub

ROSACEAE

Amelanchier alnifolia
2020 Robert Katz
Amelanchier alnifolia
2018 Chico Hiking Association
Amelanchier alnifolia
2018 Dee Shea Himes

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

ROSACEAE

Amelanchier alnifolia var. semiintegrifolia
2014 John Doyen
Amelanchier alnifolia var. semiintegrifolia
2005 Penn Martin II
Amelanchier alnifolia var. semiintegrifolia
2008 George W. Hartwell

Amelanchier pallida    Pale serviceberry,  Pallid serviceberry,  Sarvis
native
Shrub

ROSACEAE

Amelanchier pallida
2009 Gary A. Monroe
Amelanchier pallida
2010 Margo Bors
Amelanchier pallida
2009 Gary A. Monroe

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

ROSACEAE

Amelanchier utahensis
2018 Chico Hiking Association
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
2009 Neal Kramer
Ammophila arenaria
2015 Zoya Akulova
Ammophila arenaria
2014 Trent M. Draper

Amsinckia intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia intermedia
2020 Matt Berger
Amsinckia intermedia
Geoff Burleigh
Amsinckia intermedia
2014 Vertin Alvarez

Amsinckia lycopsoides    Bugloss fiddleneck,  Tarweed fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia lycopsoides
2011 Jorg & Mimi Fleige
Amsinckia lycopsoides
2004 George W. Hartwell
Amsinckia lycopsoides
2012 Gary A. Monroe

Amsinckia menziesii var. intermedia    Common fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia menziesii var. intermedia
2020 Matt Berger
Amsinckia menziesii var. intermedia
Geoff Burleigh
Amsinckia menziesii var. intermedia
2014 Vertin Alvarez

Anagallis arvensis    Scarlet pimpernel
non-native
Annual herb

MYRSINACEAE

Anagallis arvensis
2017 B.J. Dion
Anagallis arvensis
2009 Keir Morse
Anagallis arvensis
2019 Barbara Boethling

Anaphalis margaritacea    Pearly everlasting
native
Perennial herb

ASTERACEAE

Anaphalis margaritacea
2018 Rachelle Gray
Anaphalis margaritacea
2014 James Gonsman
Anaphalis margaritacea
2014 James Gonsman

Anemone deltoidea    Columbian windflower
native
Perennial herb

RANUNCULACEAE

Anemone deltoidea
2006 David McClurg
Anemone deltoidea
2011 Steve Matson
Anemone deltoidea
2012 Gary A. Monroe

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

RANUNCULACEAE

Anemone oregana
2008 Keir Morse
Anemone oregana
2008 Keir Morse
Anemone oregana
2019 Cynthia Powell

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
2010 Margo Bors
Angelica hendersonii
2014 Zoya Akulova
Angelica hendersonii
2018 Abbot Chambers

Angelica tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

Angelica tomentosa
2004 Doreen L. Smith
Angelica tomentosa
2017 MCOSD EDRR
Angelica tomentosa
2017 MCOSD EDRR

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

APIACEAE

Angelica tomentosa var. hendersonii
2010 Margo Bors
Angelica tomentosa var. hendersonii
2014 Zoya Akulova
Angelica tomentosa var. hendersonii
2018 Abbot Chambers

Angelica tomentosa var. tomentosa    Woolly angelica
native
Perennial herb

APIACEAE

Angelica tomentosa var. tomentosa
2004 Doreen L. Smith
Angelica tomentosa var. tomentosa
2017 MCOSD EDRR
Angelica tomentosa var. tomentosa
2017 MCOSD EDRR

Anisocarpus madioides    Woodland madia
native
Perennial herb

ASTERACEAE

Anisocarpus madioides
2018 Rebecca Schoenenberger
Anisocarpus madioides
2019 Ken Lunders
Anisocarpus madioides
2009 Neal Kramer

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

ASTERACEAE

Anthemis cotula
2007 Neal Kramer
Anthemis cotula
2019 Dave Beller
Anthemis cotula
2017 Diane Etchison

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

POACEAE

Anthoxanthum aristatum
2017 Hannah Kang
Anthoxanthum aristatum
2014 Zoya Akulova (ssp. aristatum)

Anthoxanthum occidentale    Califonria sweet grass,  Vanilla grass
native
Perennial grass

POACEAE

Anthoxanthum occidentale
2010 Neal Kramer
Anthoxanthum occidentale
2018 Hayley Ross
Anthoxanthum occidentale
2010 Chris Wagner

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

POACEAE

Anthoxanthum odoratum
2008 Zoya Akulova
Anthoxanthum odoratum
2009 Zoya Akulova
Anthoxanthum odoratum
2008 Keir Morse

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

ROSACEAE

Aphanes occidentalis
2019 Ron Vanderhoff
Aphanes occidentalis
2017 Ron Vanderhoff
Aphanes occidentalis
2009 Keir Morse

Apocynum androsaemifolium    Bitter dogbane,  Spreading dogbane
native
Perennial herb

APOCYNACEAE

Apocynum androsaemifolium
Geoff Burleigh
Apocynum androsaemifolium
Geoff Burleigh
Apocynum androsaemifolium
2017 Adam Chasey

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

RANUNCULACEAE

Aquilegia formosa
2016 Ron Vanderhoff
Aquilegia formosa
2019 Mary Gerbic
Aquilegia formosa
2013 James Gonsman

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

RANUNCULACEAE

Aquilegia formosa var. truncata
2016 Ron Vanderhoff
Aquilegia formosa var. truncata
2019 Mary Gerbic
Aquilegia formosa var. truncata
2013 James Gonsman

Arabis glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Arabis glabra
2009 Thomas Stoughton
Arabis glabra
2015 Barry Breckling
Arabis glabra
2012 Zoya Akulova

Arabis glabra var. glabra    Tower rockcress
native
Perennial herb

BRASSICACEAE

Arabis glabra var. glabra
2009 Thomas Stoughton
Arabis glabra var. glabra
2015 Barry Breckling
Arabis glabra var. glabra
2012 Zoya Akulova

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
2020 Tri Do
Aralia californica
2020 Tri Do
Aralia californica
2014 James Gonsman

Araucaria araucana   


Arbutus menziesii    Madrono,  Pacific madrone
native
Tree

ERICACEAE

Arbutus menziesii
2008 Neal Kramer
Arbutus menziesii
2015 Susan McDougall
Arbutus menziesii
2019 Phyllis Fitzsimons

Arbutus unedo    Strawberry tree
non-native
Tree

ERICACEAE

Arbutus unedo
2008 Luigi Rignanese
Arbutus unedo
2015 Zoya Akulova
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
2019 Talila Golan
Arceuthobium campylopodum
2009 Keir Morse

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

ASTERACEAE

Arctium minus
2014 Zoya Akulova
Arctium minus
2010 Barry Breckling
Arctium minus
2006 Louis-M. Landry

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
2015 Susan McDougall
Arctostaphylos columbiana
2009 Zoya Akulova
Arctostaphylos columbiana
2009 Neal Kramer

Arctostaphylos hispidula    Howell's manzanita
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 Julian Geoghegan
Arctostaphylos manzanita
2019 Adam Chasey

Arctostaphylos nevadensis    Pine mat manzanita,  Pinemat manzanita
native
Shrub

ERICACEAE

Arctostaphylos nevadensis
2010 Keir Morse
Arctostaphylos nevadensis
2006 Michael W. Tuma
Arctostaphylos nevadensis
2019 Chico Hiking Association

native
Shrub

ERICACEAE

Arctostaphylos nevadensis ssp. nevadensis
2013 Judith Elaine Bush
Arctostaphylos nevadensis ssp. nevadensis
2019 Susan McDougall
Arctostaphylos nevadensis ssp. nevadensis
2015 Susan McDougall

Arctostaphylos uva-ursi    Bearberry manzanita,  Kinnikinnick
native
Shrub

ERICACEAE

Arctostaphylos uva-ursi
2018 Saskia Raether
Arctostaphylos uva-ursi
2007 California Native Plant Society
Arctostaphylos uva-ursi
2005 Steve Matson

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
2005 Steve Matson
Arenaria douglasii
2015 Barry Thomson
Arenaria douglasii
2014 Keir Morse

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

PLUMBAGINACEAE

Armeria maritima ssp. californica
2011 Steven Perry
Armeria maritima ssp. californica
2015 Susan McDougall
Armeria maritima ssp. californica
2012 Aaron Arthur

Arnica cordifolia    Heart leaved arnica,  Heartleaf arnica
native
Perennial herb

ASTERACEAE

Arnica cordifolia
2003 Steve Matson
Arnica cordifolia
2009 Barry Breckling
Arnica cordifolia
2010 Keir Morse

Arnica spathulata    Klamath arnica
native
Perennial herb (rhizomatous)

ASTERACEAE

Arnica spathulata
2007 Gerald Carr
Arnica spathulata
2007 Keir Morse
Arnica spathulata
2007 Gerald Carr

Arnica Xdiversifolia    Sticky leaf arnica
native
Perennial herb

ASTERACEAE

Arnica Xdiversifolia
2013 Dana York
Arnica Xdiversifolia
2017 Debra L. Cook
Arnica Xdiversifolia
2009 Barry Breckling

Arrhenatherum elatius    Tall oatgrass
non-native
Perennial grass

POACEAE

Arrhenatherum elatius
2010 National Park Service
Arrhenatherum elatius
2003 Craig Smith
Arrhenatherum elatius
2013 Trent M. Draper

Artemisia douglasiana    California mugwort,  Douglas' sagewort
native
Perennial herb

ASTERACEAE

Artemisia douglasiana
2018 Stacie Wolny
Artemisia douglasiana
2017 Alison Sheehey
Artemisia douglasiana
2016 Glen Schneider

Artemisia suksdorfii    Coastal mugwort
native
Perennial herb

ASTERACEAE

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

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

ROSACEAE

Aruncus dioicus var. acuminatus
2013 John Doyen
Aruncus dioicus var. acuminatus
2009 Barry Breckling
Aruncus dioicus var. acuminatus
2018 Matt C. Berger

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

ARISTOLOCHIACEAE

Asarum caudatum
2007 Shawn DeCew
Asarum caudatum
Gerald and Buff Corsi 2009 California Academy of Sciences
Asarum caudatum
2017 Gregory Arena

Aspidotis densa    Cliffbrake,  Indian's dream,  Lace fern
native
Fern

PTERIDACEAE

Aspidotis densa
2012 Gary A. Monroe
Aspidotis densa
2017 David popp
Aspidotis densa
2015 James Gonsman

Aster breweri    Brewer's aster
native
Perennial herb

ASTERACEAE

Aster breweri
2009 Keir Morse
Aster breweri
2019 Chico Hiking Association
Aster breweri
2011 Jean Pawek

Aster spathulatus    Western mountain aster
native
Perennial herb

ASTERACEAE

Aster spathulatus
2011 Wynn Anderson
Aster spathulatus
2013 Barry Rice
Aster spathulatus
2004 George W. Hartwell

Asyneuma prenanthoides    California harebell
native
Perennial herb

CAMPANULACEAE

Asyneuma prenanthoides
2009 Keir Morse
Asyneuma prenanthoides
2007 Dianne Fristrom
Asyneuma prenanthoides
2019 Cara Wilcox

Athyrium filix-femina    Common ladyfern
native
Fern

WOODSIACEAE

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

WOODSIACEAE

Athyrium filix-femina var. cyclosorum
2008 Keir Morse
Athyrium filix-femina var. cyclosorum
2019 Susan McDougall
Athyrium filix-femina var. cyclosorum
2019 Susan McDougall

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
2009 Neal Kramer

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

POACEAE

Avena barbata
2004 Carol W. Witham
Avena barbata
2009 Keir Morse
Avena barbata
2002 James B. Gratiot

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

POACEAE

Avena fatua
2008 Keir Morse
Avena fatua
2002 James B. Gratiot
Avena fatua
2008 Zoya Akulova

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

POACEAE

Avena sativa
2002 Brent Miller
Avena sativa
2006 Louis-M. Landry
Avena sativa
2006 Luigi Rignanese

Baccharis pilularis    Coyote brush,  Dwarf chaparral broom
native
Shrub

ASTERACEAE

Baccharis pilularis
2018 Cynthia Powell
Baccharis pilularis
2019 Talila Golan
Baccharis pilularis
2008 Gary McDonald

native
Shrub

ASTERACEAE

Baccharis pilularis ssp. consanguinea
© 2014 Neal Kramer
Baccharis pilularis ssp. consanguinea
2015 Keir Morse
Baccharis pilularis ssp. consanguinea
2018 Ron Vanderhoff

Bambusa   


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

BRASSICACEAE

Barbarea orthoceras
2014 Susan McDougall
Barbarea orthoceras
2013 Debra L. Cook
Barbarea orthoceras
2014 Susan McDougall

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

BRASSICACEAE

Barbarea orthoceras var. dolichocarpa
2014 Susan McDougall
Barbarea orthoceras var. dolichocarpa
2013 Debra L. Cook
Barbarea orthoceras var. dolichocarpa
2014 Susan McDougall

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

ASTERACEAE

Bellis perennis
2008 Keir Morse
Bellis perennis
2008 Keir Morse
Bellis perennis
2004 Dr. Amadej Trnkoczy

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
2008 Keir Morse
Berberis aquifolium var. aquifolium
2008 Keir Morse
Berberis aquifolium var. aquifolium
2008 Keir Morse

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

BERBERIDACEAE

Berberis aquifolium var. repens
2004 Robert Sivinski
Berberis aquifolium var. repens
2010 James M. Andre
Berberis aquifolium var. repens
2007 Dr. Mark S. Brunell

Berberis darwinii    Darwin's berberis
invasive non-native
Shrub

BERBERIDACEAE

Berberis darwinii
2008 Zoya Akulova
Berberis darwinii
2018 Abbot Chambers
Berberis darwinii
2015 Nicholas Stevenson

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
2014 Neal Kramer
Berberis pinnata
2014 Zoya Akulova
Berberis pinnata
2014 Neal Kramer

Bidens frondosa    Devil's beggartick,  Sticktight
native
Annual herb

ASTERACEAE

Bidens frondosa
2019 Ron Vanderhoff
Bidens frondosa
2008 Keir Morse
Bidens frondosa
2003 Penn Martin II

Blechnum spicant    Deer fern
native
Fern

BLECHNACEAE

Blechnum spicant
2009 Neal Kramer
Blechnum spicant
Sherry Ballard 2000 California Academy of Sciences
Blechnum spicant
2007 Dr. Mark S. Brunell

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

SAXIFRAGACEAE

Boykinia elata
2003 Michael Charters
Boykinia elata
2019 Adonis Tate
Boykinia elata
2017 Hunter Breck

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

SAXIFRAGACEAE

Boykinia major
2006 George W. Hartwell
Boykinia major
2012 Neal Kramer
Boykinia major
2019 Julie Kierstead Nelson

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

SAXIFRAGACEAE

Boykinia occidentalis
2003 Michael Charters
Boykinia occidentalis
2019 Adonis Tate
Boykinia occidentalis
2017 Hunter Breck

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

BRASSICACEAE


Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
2011 Jorg & Mimi Fleige
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
2005 Brent Miller
Briza minor
2008 Keir Morse
Briza minor
2004 Carol W. Witham

Brodiaea elegans    Harvest brodiaea
native
Perennial herb

THEMIDACEAE

Brodiaea elegans
2019 Joe Engelbrecht
Brodiaea elegans
2019 Alison Sheehey
Brodiaea elegans
2020 Leah Gardner

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

THEMIDACEAE

Brodiaea ida-maia
2018 Emily Allen
Brodiaea ida-maia
2019 Steve Laymon
Brodiaea ida-maia
2015 John Doyen

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 grass,  California bromegrass
native
Perennial grass

POACEAE

Bromus carinatus
2015 jamie smith
Bromus carinatus
2011 Ryan Batten
Bromus carinatus
2015 jamie smith

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
2013 Robert Steers/NPS
Bromus carinatus var. maritimus
2012 Thomas Reyes
Bromus carinatus var. maritimus
2008 Lew Stringer

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

POACEAE

Bromus catharticus var. elatus
2006 Steve Matson
Bromus catharticus var. elatus
2006 Steve Matson
Bromus catharticus var. elatus
2006 Steve Matson

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

POACEAE

Bromus diandrus
2009 Neal Kramer
Bromus diandrus
1995 Saint Mary's College of California
Bromus diandrus
2020 Julie A. Kierstead

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

POACEAE

Bromus hordeaceus
2006 Brent Miller
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
2006 Brent Miller
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
2020 Belinda Lo
Bromus inermis ssp. inermis
2005 Louis-M. Landry
Bromus inermis ssp. inermis
2020 Belinda Lo

non-native
Perennial grass

POACEAE

Bromus inermis ssp. inermis var. inermis
2020 Belinda Lo
Bromus inermis ssp. inermis var. inermis
2005 Louis-M. Landry
Bromus inermis ssp. inermis var. inermis
2020 Belinda Lo

Bromus maritimus    Maritime brome
native
Perennial grass

POACEAE

Bromus maritimus
2013 Robert Steers/NPS
Bromus maritimus
2012 Thomas Reyes
Bromus maritimus
2008 Lew Stringer

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

POACEAE

Bromus mollis
2006 Brent Miller
Bromus mollis
2018 Gary McDonald
Bromus mollis
2018 Gary McDonald

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

POACEAE

Bromus sterilis
2008 Keir Morse
Bromus sterilis
2008 Keir Morse
Bromus sterilis
2005 Steve Matson

Bromus vulgaris    Columbia brome,  Common brome
native
Annual grass

POACEAE

Bromus vulgaris
2018 Neal Kramer
Bromus vulgaris
2008 Zoya Akulova
Bromus vulgaris
2018 Neal Kramer

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

SCROPHULARIACEAE

Buddleja davidii
2007 Louis-M. Landry
Buddleja davidii
2011 Michael O'Brien
Buddleja davidii
2011 Mike Perlmutter

Buxus microphylla   


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

BRASSICACEAE

Cakile edentula
2010 Louis-M. Landry
Cakile edentula
2006 Louis-M. Landry
Cakile edentula
2006 Louis-M. Landry

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

BRASSICACEAE

Cakile maritima
2009 Neal Kramer
Cakile maritima
2019 Cynthia Powell
Cakile maritima
2019 Cynthia Powell

Calamagrostis nutkaensis    Pacific reedgrass
native
Perennial grass

POACEAE

Calamagrostis nutkaensis
2008 Eric Wrubel
Calamagrostis nutkaensis
2018 Ken Hickman
Calamagrostis nutkaensis
2012 Aaron E. Sims

Calandrinia ciliata    Red maids
native
Annual herb

MONTIACEAE

Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2019 Ron Vanderhoff
Calandrinia ciliata
2019 Ron Vanderhoff

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

PLANTAGINACEAE

Callitriche heterophylla
2010 Aaron Arthur
Callitriche heterophylla
2010 Aaron Arthur
Callitriche heterophylla
2015 Jean Pawek

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

PLANTAGINACEAE

Callitriche heterophylla var. bolanderi
2005 Steve Matson
Callitriche heterophylla var. bolanderi
2008 Keir Morse
Callitriche heterophylla var. bolanderi
2009 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
2010 Gerald Carr

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

LILIACEAE

Calochortus tolmiei
2020 Steve Conger
Calochortus tolmiei
2020 Mary Ann Machi
Calochortus tolmiei
2020 Steve Laymon

Caltha leptosepala    White marsh marigold
native
Perennial herb

RANUNCULACEAE

Caltha leptosepala
2018 Adam Chasey
Caltha leptosepala
2018 Art Clark
Caltha leptosepala
2018 Chico Hiking Association

Caltha leptosepala var. biflora    White marsh marigold
native
Perennial herb

RANUNCULACEAE

Caltha leptosepala var. biflora
2018 Adam Chasey
Caltha leptosepala var. biflora
2018 Art Clark
Caltha leptosepala var. biflora
2018 Chico Hiking Association

Calypso bulbosa    Fairy slipper,  Fairyslipper orchid
native
Perennial herb

ORCHIDACEAE

Calypso bulbosa
2020 Peter Warner
Calypso bulbosa
2018 Steve Laymon
Calypso bulbosa
2002 Glenn Fine

native
Perennial herb

ORCHIDACEAE

Calypso bulbosa var. occidentalis
2018 Ken Hickman
Calypso bulbosa var. occidentalis
2017 Rene Voss
Calypso bulbosa var. occidentalis
2018 Hunter Breck

Calystegia atriplicifolia    Nightblooming false bindweed
native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Calystegia atriplicifolia
2008 Keir Morse
Calystegia atriplicifolia
2008 Keir Morse
Calystegia atriplicifolia
2008 Sierra Pacific Industries

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

CONVOLVULACEAE

Calystegia atriplicifolia ssp. buttensis
2008 John Dittes
Calystegia atriplicifolia ssp. buttensis
2008 Sierra Pacific Industries
Calystegia atriplicifolia ssp. buttensis
2018 Sierra Pacific Industries

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

CONVOLVULACEAE

Calystegia occidentalis ssp. occidentalis
2003 George W. Hartwell
Calystegia occidentalis ssp. occidentalis
2008 Keir Morse
Calystegia occidentalis ssp. occidentalis
2020 Julie A. Kierstead

Calystegia soldanella    Beach morning glory,  Beach morningglory
native
Perennial herb

CONVOLVULACEAE

Calystegia soldanella
2020 David Greenberger
Calystegia soldanella
2008 John Dittes
Calystegia soldanella
2019 Bill Schmidt

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

AGAVACEAE

Camassia leichtlinii ssp. suksdorfii
2008 Keir Morse
Camassia leichtlinii ssp. suksdorfii
2014 Barry Rice
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
2019 Ron Vanderhoff
Camissonia cheiranthifolia
2019 Mary Conway

native
Perennial herb

ONAGRACEAE

Camissonia cheiranthifolia ssp. cheiranthifolia
2019 Patrick Furtado
Camissonia cheiranthifolia ssp. cheiranthifolia
2019 Ron Vanderhoff
Camissonia cheiranthifolia ssp. cheiranthifolia
2019 Mary Conway

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

BRASSICACEAE

Capsella bursa-pastoris
2007 Carol W. Witham
Capsella bursa-pastoris
2019 Cynthia Powell
Capsella bursa-pastoris
2019 Cynthia Powell

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

BRASSICACEAE

Cardamine breweri var. breweri
2021 Bob Sweatt
Cardamine breweri var. breweri
2005 Steve Matson
Cardamine breweri var. breweri
2009 Barry Breckling

Cardamine californica    Bitter cress,  California toothwort, milk maids
native
Perennial herb

BRASSICACEAE

Cardamine californica
2019 Ron Vanderhoff
Cardamine californica
2018 Lynn Sweet
Cardamine californica
2019 Ron Vanderhoff

Cardamine integrifolia    Bitter cress,  California toothwort, milk maids
native
Perennial herb

BRASSICACEAE

Cardamine integrifolia
2019 Ron Vanderhoff
Cardamine integrifolia
2018 Lynn Sweet
Cardamine integrifolia
2019 Ron Vanderhoff

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

BRASSICACEAE

Cardamine oligosperma
2019 Chico Hiking Association
Cardamine oligosperma
2013 Emily Wong
Cardamine oligosperma
2013 Ron Wolf

Cardionema ramosissimum    Sand mat,  Sandcarpet
native
Perennial herb

CARYOPHYLLACEAE

Cardionema ramosissimum
2011 Jorg & Mimi Fleige
Cardionema ramosissimum
2019 John Rawlings
Cardionema ramosissimum
2019 John Rawlings

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
2003 Steve Matson

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

CYPERACEAE

Carex deweyana ssp. leptopoda
2002 Steve Matson
Carex deweyana ssp. leptopoda
2008 Keir Morse
Carex deweyana ssp. leptopoda
2013 Robert Steers/NPS

Carex dudleyi    Dense sedge,  Sedge
native
Perennial grasslike herb

CYPERACEAE

Carex dudleyi
2002 Dean Wm. Taylor
Carex dudleyi
2008 Dean Wm. Taylor, Ph.D.
Carex dudleyi
2008 Dean Wm. Taylor, Ph.D.

Carex globosa    Round fruit sedge
native
Perennial grasslike herb

CYPERACEAE

Carex globosa
2010 Dean W. Taylor, Ph.D
Carex globosa
2009 Neal Kramer
Carex globosa
2014 Steve Matson

Carex hendersonii    Henderson's sedge
native
Perennial grasslike herb

CYPERACEAE

Carex hendersonii
2003 Steve Matson
Carex hendersonii
2003 Steve Matson
Carex hendersonii
2007 Shawn DeCew

Carex leporina    Hare or oval sedge
native
Perennial grasslike herb

CYPERACEAE

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

Carex leptopoda    Slender-footed sedge
native
Perennial grasslike herb

CYPERACEAE

Carex leptopoda
2002 Steve Matson
Carex leptopoda
2008 Keir Morse
Carex leptopoda
2013 Robert Steers/NPS

Carex mendocinensis    Mendocino sedge
native
Perennial grasslike herb

CYPERACEAE

Carex mendocinensis
2008 Keir Morse
Carex mendocinensis
2008 Keir Morse
Carex mendocinensis
2008 Keir Morse

Carex obnupta    Coast carex,  Slough sedge
native
Perennial grasslike herb

CYPERACEAE

Carex obnupta
2007 Neal Kramer
Carex obnupta
2008 Keir Morse
Carex obnupta
2014 Zoya Akulova

Carex ovalis    Hare or oval sedge
native
Perennial grasslike herb

CYPERACEAE

Carex ovalis
2009 Chris Wagner
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 Steve Matson
Carex praegracilis
2020 Steve Matson
Carex praegracilis
2020 Steve Matson

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

CYPERACEAE

Carex simulata
2006 Steve Matson
Carex simulata
2013 Robert Sivinski
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
2009 Chris Wagner
Carex tumulicola
2012 MMWD
Carex tumulicola
2012 MMWD

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 Tim Lewis
Castilleja attenuata
2018 Chico Hiking Association
Castilleja attenuata
2007 Carol W. Witham

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

OROBANCHACEAE

Castilleja miniata ssp. elata
2015 John Doyen
Castilleja miniata ssp. elata
2008 Keir Morse
Castilleja miniata ssp. elata
2008 Keir Morse

Caucalis microcarpa    California hedge parsley,  False carrot
native
Annual herb

APIACEAE

Caucalis microcarpa
2008 Keir Morse
Caucalis microcarpa
2008 Keir Morse
Caucalis microcarpa
2008 Keir Morse

Ceanothus pumilus    Dwarf ceanothus,  Siskiyou mat
native
Shrub

RHAMNACEAE

Ceanothus pumilus
2010 Vernon Smith
Ceanothus pumilus
2019 Julie A. Kierstead
Ceanothus pumilus
2019 Julie A. Kierstead

Ceanothus thyrsiflorus    Blueblossom
native
Tree, Shrub

RHAMNACEAE

Ceanothus thyrsiflorus
2008 Gary McDonald
Ceanothus thyrsiflorus
2018 Rick Kuyper
Ceanothus thyrsiflorus
2017 James Gonsman

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

RHAMNACEAE

Ceanothus velutinus var. hookeri
2013 Christopher L. Christie
Ceanothus velutinus var. hookeri
2014 Jean Pawek
Ceanothus velutinus var. hookeri
2019 Chico Hiking Association

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
2005 Louis-M. Landry
Centaurea stoebe ssp. micranthos
2012 Zoya Akulova
Centaurea stoebe ssp. micranthos
2012 Zoya Akulova

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

GENTIANACEAE

Centaurium erythraea
2011 Ryan Batten
Centaurium erythraea
2003 George W. Hartwell
Centaurium erythraea
2014 Jean Pawek

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
2009 Neal Kramer
Centranthus ruber
2005 Luigi Rignanese
Centranthus ruber
2005 Luigi Rignanese

Cephalanthera austiniae    Phantom orchid
native
Perennial herb

ORCHIDACEAE

Cephalanthera austiniae
2012 Kim Cabrera
Cephalanthera austiniae
2020 Joey Santore
Cephalanthera austiniae
2018 Margarita Orlova

Cerastium arvense    Field chickweed,  Meadow chickweed
native
Perennial herb

CARYOPHYLLACEAE

Cerastium arvense
2007 Neal Kramer
Cerastium arvense
2014 John Doyen
Cerastium arvense
2008 Keir Morse

Cerastium arvense ssp. strictum    Field chickweed
native
Perennial herb

CARYOPHYLLACEAE

Cerastium arvense ssp. strictum
2014 Robert Sikora
Cerastium arvense ssp. strictum
2014 Dr. Amadej Trnkoczy
Cerastium arvense ssp. strictum
2007 Dr. Amadej Trnkoczy

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
2009 Barry Breckling

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
2009 Barry Breckling

Ceratophyllum demersum    Coon's tail,  Hornwort
native
Perennial herb

CERATOPHYLLACEAE

Ceratophyllum demersum
2008 Neal Kramer
Ceratophyllum demersum
2013 Ron Vanderhoff
Ceratophyllum demersum
2008 Neal Kramer

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

ROSACEAE

Cercocarpus betuloides
2018 Diane Etchison
Cercocarpus betuloides
2016 Cindy Roessler
Cercocarpus betuloides
2007 Neal Kramer

Chamaecyparis lawsoniana    Port orford cedar
native
Tree

CUPRESSACEAE

Chamaecyparis lawsoniana
2000 John Game
Chamaecyparis lawsoniana
2018 Julie Kierstead Nelson
Chamaecyparis lawsoniana
2018 Julie Kierstead Nelson

native
Perennial herb

ONAGRACEAE

Chamerion angustifolium ssp. circumvagum
2011 Neal Kramer
Chamerion angustifolium ssp. circumvagum
2012 Neal Kramer
Chamerion angustifolium ssp. circumvagum
2019 Heather Morrison

Cheilanthes gracillima    Lace lip fern
native
Fern

PTERIDACEAE

Cheilanthes gracillima
© 2015 Barry Breckling
Cheilanthes gracillima
2005 Hartmut Wisch
Cheilanthes gracillima
2010 Neal Kramer

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

CHENOPODIACEAE

Chenopodium album
2005 Louis-M. Landry
Chenopodium album
2008 Keir Morse
Chenopodium album
2005 Louis-M. Landry

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

ERICACEAE

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

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

ERICACEAE

Chimaphila umbellata
2009 Keir Morse
Chimaphila umbellata
2009 Barry Breckling
Chimaphila umbellata
2019 Matt Berger

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

ERICACEAE

Chimaphila umbellata ssp. occidentalis
2009 Keir Morse
Chimaphila umbellata ssp. occidentalis
2009 Barry Breckling
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
2018 Karen Scheuermann

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
2005 Lisa Powers
Chrysanthemum leucanthemum
Nick Kurzenko
Chrysanthemum leucanthemum
2019 Julian Geoghegan

Chrysolepis chrysophylla    Giant chinquapin,  Golden chinquapin
native
Tree, Shrub

FAGACEAE

Chrysolepis chrysophylla
2020 Mary Conway
Chrysolepis chrysophylla
2019 Cynthia Powell
Chrysolepis chrysophylla
2011 Zoya Akulova

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

FAGACEAE

Chrysolepis chrysophylla var. minor
2009 Neal Kramer
Chrysolepis chrysophylla var. minor
2017 Zachariah Jordan
Chrysolepis chrysophylla var. minor
2010 Neal Kramer

Chrysosplenium glechomifolium    Pacific golden saxifrage
native
Perennial herb

SAXIFRAGACEAE

Chrysosplenium glechomifolium
2005 Cheri J. Sanville
Chrysosplenium glechomifolium
2014 Dana York
Chrysosplenium glechomifolium
2014 Dana York

Cichorium intybus    Chicory
non-native
Perennial herb

ASTERACEAE

Cichorium intybus
2019 Diane Etchison
Cichorium intybus
2015 Debra L. Cook
Cichorium intybus
2019 Chico Hiking Association

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

ONAGRACEAE

Circaea alpina ssp. pacifica
2013 Debra L. Cook
Circaea alpina ssp. pacifica
2008 Keir Morse
Circaea alpina ssp. pacifica
2018 Julie Kierstead Nelson

Cirsium acanthodontum    Few leaved thistle,  Fewleaf thistle
native
Perennial herb

ASTERACEAE

Cirsium acanthodontum
2008 Keir Morse
Cirsium acanthodontum
2008 Keir Morse
Cirsium acanthodontum
2008 Keir Morse

Cirsium arvense    Canada thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium arvense
2008 Keir Morse
Cirsium arvense
2018 Joel Trumbo
Cirsium arvense
2007 Luigi Rignanese

Cirsium brevistylum    Clustered thistle,  Indian thistle
native
Perennial herb

ASTERACEAE

Cirsium brevistylum
2007 Neal Kramer
Cirsium brevistylum
2014 Margo Bors
Cirsium brevistylum
2018 Brian Charles

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

ASTERACEAE

Cirsium occidentale var. venustum
2004 David A. Tharp
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
2018 John Doyen
Cirsium pastoris
2019 Matt Berger

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

ASTERACEAE

Cirsium proteanum
2004 David A. Tharp
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 Keir Morse
Cirsium remotifolium
2008 Keir Morse
Cirsium remotifolium
2008 Keir Morse

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
2005 Christopher L. Christie
Cirsium vulgare
2016 Erik Larsen
Cirsium vulgare
2019 Gustavo Vasquez

Clarkia amoena    Farewell to spring
native
Annual herb

ONAGRACEAE

Clarkia amoena
2015 James Gonsman
Clarkia amoena
2018 Anna Sereno
Clarkia amoena
2019 Steve Laymon

Clarkia amoena ssp. amoena    Farewell to spring
native
Annual herb

ONAGRACEAE

Clarkia amoena ssp. amoena
2001 Jeff Abbas
Clarkia amoena ssp. amoena
2012 Vernon Smith
Clarkia amoena ssp. amoena
2001 Jeff Abbas

Clarkia purpurea    Purple clarkia,  Winecup clarkia
native
Annual herb

ONAGRACEAE

Clarkia purpurea
2018 Elinor Gates
Clarkia purpurea
2017 Gary Morgret
Clarkia purpurea
2019 Stacie Wolny

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

ONAGRACEAE

Clarkia purpurea ssp. quadrivulnera
2019 Joe Engelbrecht
Clarkia purpurea ssp. quadrivulnera
2020 Steve Laymon
Clarkia purpurea ssp. quadrivulnera
2018 Ron Vanderhoff

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

MONTIACEAE

Claytonia perfoliata
2020 Camille Nowell
Claytonia perfoliata
2007 Neal Kramer
Claytonia perfoliata
2020 Camille Nowell

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

MONTIACEAE

Claytonia sibirica
2007 Aaron Schusteff
Claytonia sibirica
2008 Keir Morse
Claytonia sibirica
2019 Mary Conway

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

MONTIACEAE

Claytonia sibirica var. sibirica
2007 Aaron Schusteff
Claytonia sibirica var. sibirica
2008 Keir Morse
Claytonia sibirica var. sibirica
2019 Mary Conway

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
2020 Emily Sluiman
Clematis ligusticifolia
2009 Neal Kramer

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
2018 Saskia Raether
Clintonia andrewsiana
2013 Janet Herringshaw
Clintonia andrewsiana
2013 Janet Herringshaw

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

PLANTAGINACEAE

Collinsia linearis
2008 Keir Morse
Collinsia linearis
2014 Maya Goklany
Collinsia linearis
2009 Julie Kierstead Nelson

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
2008 Keir Morse
Conium maculatum
2016 Cynthia Powell
Conium maculatum
2019 Ron Vanderhoff

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

CONVOLVULACEAE

Convolvulus arvensis
2005 Steve Matson
Convolvulus arvensis
2018 Troy Dean Torres
Convolvulus arvensis
2019 Ron Vanderhoff

Coptis laciniata    Oregon golden thread,  Oregon goldthread
native
Perennial herb

RANUNCULACEAE

Coptis laciniata
2006 David McClurg
Coptis laciniata
2008 Zoya Akulova
Coptis laciniata
2012 Kjirsten Wayman

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

ORCHIDACEAE

Corallorhiza maculata
2010 Dee E. Warenycia
Corallorhiza maculata
2019 Cynthia Powell
Corallorhiza maculata
2019 Jane Cohn

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

ORCHIDACEAE

Corallorhiza mertensiana
2011 Steve Matson
Corallorhiza mertensiana
2011 Steve Matson
Corallorhiza mertensiana
2018 Julie Kierstead Nelson

Corallorhiza striata    Hooded coralroot,  Striped coral root
native
Perennial herb

ORCHIDACEAE

Corallorhiza striata
2019 Timothy Boomer
Corallorhiza striata
2018 Timothy Boomer
Corallorhiza striata
2005 Dianne Fristrom

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

OROBANCHACEAE

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

Corethrogyne filaginifolia    Common sandaster
native
Perennial herb

ASTERACEAE

Corethrogyne filaginifolia
2018 Ron Vanderhoff
Corethrogyne filaginifolia
2019 Bonnie Nickel
Corethrogyne filaginifolia
2019 stephen rosenthal

Cornus capitata   


Cornus glabrata    Brown dogwood
native
Tree, Shrub

CORNACEAE

Cornus glabrata
2010 Vernon Smith
Cornus glabrata
J. E.(Jed) and Bonnie McClellan 2006 California Academy of Sciences
Cornus glabrata
2018 Chico Hiking Association

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

CORNACEAE

Cornus nuttallii
2018 Matt Berger
Cornus nuttallii
2018 Chico Hiking Association
Cornus nuttallii
2019 Janith Johnson

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

CORNACEAE

Cornus sericea
2018 Hayley Ross
Cornus sericea
2018 Hayley Ross
Cornus sericea
2006 Shawn DeCew

Cornus sericea ssp. occidentalis    Western dogwood
native
Shrub

CORNACEAE

Cornus sericea ssp. occidentalis
2016 Neal Kramer
Cornus sericea ssp. occidentalis
2013 John Doyen
Cornus sericea ssp. occidentalis
2014 Zoya Akulova

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

CORNACEAE

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

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

POACEAE

Cortaderia jubata
2008 Neal Kramer
Cortaderia jubata
2001 Tony Morosco
Cortaderia jubata
2017 Lynn Overtree

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
2009 Keir Morse
Corylus cornuta ssp. californica
2013 Susan McDougall
Corylus cornuta ssp. californica
2019 Belinda Lo

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

ROSACEAE

Cotoneaster franchetii
2006 Peter Zika
Cotoneaster franchetii
2001 Joe DiTomaso
Cotoneaster franchetii
2006 Peter Zika

Cotoneaster integrifolius    Entire-leaved cotoneaster
non-native
Shrub

ROSACEAE

Cotoneaster integrifolius
2006 Peter Zika

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

ROSACEAE

Cotoneaster pannosus
2018 Sara Witt
Cotoneaster pannosus
2018 MCOSD EDRR
Cotoneaster pannosus
2006 Peter Zika

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

ASTERACEAE

Cotula australis
2011 Neal Kramer
Cotula australis
2014 Keir Morse
Cotula australis
2011 Neal Kramer

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
2007 Dr. Amadej Trnkoczy
Crataegus monogyna
2010 Phil Pullen
Crataegus monogyna
2007 Luigi Rignanese

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
2007 John Pelafigue
Crocosmia Xcrocosmiiflora
2007 Pat Brooks
Crocosmia Xcrocosmiiflora
2008 Jorg Fleige

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

POACEAE

Crypsis schoenoides
2019 Ron Vanderhoff
Crypsis schoenoides
2017 Ron Vanderhoff
Crypsis schoenoides
2018 Ron Vanderhoff

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

BORAGINACEAE

Cryptantha leiocarpa
2011 Dylan Neubauer
Cryptantha leiocarpa
2011 Jorg & Mimi Fleige
Cryptantha leiocarpa
2015 Zoya Akulova

Cupressus lawsoniana    Port orford cedar
native
Tree

CUPRESSACEAE

Cupressus lawsoniana
2000 John Game
Cupressus lawsoniana
2018 Julie Kierstead Nelson
Cupressus lawsoniana
2018 Julie Kierstead Nelson

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
2010 National Park Service
Cymbalaria muralis
2005 Dr. Amadej Trnkoczy
Cymbalaria muralis
2005 Dr. Amadej Trnkoczy

Cynoglossum grande    Grand hound's tongue,  Pacific hound's tongue,  Western houndstongue
native
Perennial herb

BORAGINACEAE

Cynoglossum grande
2019 Eliezer Margolis
Cynoglossum grande
2018 James Gonsman
Cynoglossum grande
2019 Parker Santiago

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
2009 Barry Rice
Cynosurus echinatus
2007 Neal Kramer
Cynosurus echinatus
2019 Gary McDonald

Cyperus   


Cyperus eragrostis    Tall cyperus,  Tall flatsedge
native
Perennial grasslike herb

CYPERACEAE

Cyperus eragrostis
2017 Gary McDonald
Cyperus eragrostis
2017 Gary McDonald
Cyperus eragrostis
2012 Neal Kramer

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

CYPERACEAE

Cyperus niger
2009 Doreen L. Smith
Cyperus niger
2003 Steve Matson
Cyperus niger
2003 Steve Matson

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

ORCHIDACEAE

Cypripedium californicum
2019 Judy Fenerty
Cypripedium californicum
2018 Margarita Orlova
Cypripedium californicum
2016 stacey laub

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

WOODSIACEAE

Cystopteris fragilis
2005 Steve Matson
Cystopteris fragilis
2006 Steve Matson
Cystopteris fragilis
2013 Trent M. Draper

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

FABACEAE

Cytisus multiflorus
J. E.(Jed) and Bonnie McClellan2005 California Academy of Sciences
Cytisus multiflorus
2014 Patrick Congdon
Cytisus multiflorus
2020 Lenihan Mazur

Cytisus scoparius    Scotch broom,  Scotchbroom
invasive non-native
Shrub

FABACEAE

Cytisus scoparius
2008 Zoya Akulova
Cytisus scoparius
2017 Bill Bogdanoff
Cytisus scoparius
2008 Neal Kramer

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

POACEAE

Dactylis glomerata
2005 Louis-M. Landry
Dactylis glomerata
2003 Steve Matson
Dactylis glomerata
2018 Kyndal Olin

Danthonia californica    California oatgrass
native
Perennial grass

POACEAE

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

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

APIACEAE

Daucus carota
2007 Luigi Rignanese
Daucus carota
2020 Ron Vanderhoff
Daucus carota
2020 BLM Redding Field Office

Daucus pusillus    American wild carrot,  Rattlesnake weed
native
Annual herb

APIACEAE

Daucus pusillus
2019 Diane Etchison
Daucus pusillus
2014 Gary McDonald
Daucus pusillus
2014 Gary McDonald

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
2008 Keir Morse
Delphinium decorum
2011 Jorg & Mimi Fleige
Delphinium decorum
2015 Aaron Schusteff

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

RANUNCULACEAE

Delphinium decorum ssp. tracyi
2008 Keir Morse
Delphinium decorum ssp. tracyi
2013 Sierra Pacific Industries Delphinium decorum ssp. tracyi Delphinium decorum ssp. tra
Delphinium decorum ssp. tracyi
2008 Keir Morse

Delphinium nudicaule    Canyon 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
2011 Margo Bors
Deschampsia caespitosa
2008 Keir Morse
Deschampsia caespitosa
2012 Jake Ruygt

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

POACEAE

Deschampsia cespitosa ssp. cespitosa
2008 Keir Morse
Deschampsia cespitosa ssp. cespitosa
2008 Keir Morse
Deschampsia cespitosa ssp. cespitosa
2013 Jean Pawek

Deschampsia danthonioides    Annual hairgrass
native
Annual grass

POACEAE

Deschampsia danthonioides
2004 Carol W. Witham
Deschampsia danthonioides
2007 Carol W. Witham
Deschampsia danthonioides
2008 Keir Morse

Deschampsia elongata    Hairgrass,  Slender hairgrass
native
Perennial grass

POACEAE

Deschampsia elongata
2009 Adonis (Don) Tate
Deschampsia elongata
2008 Keir Morse
Deschampsia elongata
2008 Keir Morse

Dicentra formosa    Pacific bleeding heart,  Pacific bleedinghearts
native
Perennial herb

PAPAVERACEAE

Dicentra formosa
2018 Chico Hiking Association
Dicentra formosa
2018 Matt Berger
Dicentra formosa
2003 Christopher L. Christie

Dichelostemma capitatum    Blue dicks,  Wild hyacinth
native
Perennial herb

THEMIDACEAE

Dichelostemma capitatum
2017 Alison Sheehey
Dichelostemma capitatum
2019 Chico Hiking Association
Dichelostemma capitatum
2020 Cheryl Ballantyne

Dichelostemma congestum    Fork toothed ookow,  Ookow
native
Perennial herb

THEMIDACEAE

Dichelostemma congestum
2017 Gary Morgret
Dichelostemma congestum
2019 Miao Ling He
Dichelostemma congestum
2018 Miao Ling He

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

THEMIDACEAE

Dichelostemma ida-maia
2018 Emily Allen
Dichelostemma ida-maia
2019 Steve Laymon
Dichelostemma ida-maia
2015 John Doyen

Dichelostemma Xvenustum    Rose firecracker flower
native
Perennial herb

THEMIDACEAE

Dichelostemma Xvenustum
2017 Tanya Chapple
Dichelostemma Xvenustum
2017 Tanya Chapple
Dichelostemma Xvenustum
2017 Tanya Chapple

Digitalis purpurea    Purple foxglove
invasive non-native
Perennial herb

PLANTAGINACEAE

Digitalis purpurea
2009 John W. Wall
Digitalis purpurea
2020 Woody Elliott
Digitalis purpurea
2018 Lindsay T. Cook

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

DIPSACACEAE

Dipsacus fullonum
2008 Keir Morse
Dipsacus fullonum
2017 Rachel Kesel
Dipsacus fullonum
2017 MCOSD Restoration Crew

Disporum smithii    Largeflower fairybells
native
Perennial herb

LILIACEAE

Disporum smithii
2008 Neal Kramer
Disporum smithii
2020 Susan McDougall
Disporum smithii
2018 Saskia Raether

Dodecatheon hendersonii    Mosquito bill
native
Perennial herb

PRIMULACEAE

Dodecatheon hendersonii
2019 Patrick Furtado
Dodecatheon hendersonii
2017 John Game
Dodecatheon hendersonii
2015 Susan McDougall

native
Perennial herb

ROSACEAE

Drymocallis glandulosa var. glandulosa
2014 Neal Kramer
Drymocallis glandulosa var. glandulosa
2009 Barry Breckling
Drymocallis glandulosa var. glandulosa
2009 Keir Morse

Drymocallis glandulosa var. reflexa    Sticky cinquefoil
native
Perennial herb

ROSACEAE

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

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

DRYOPTERIDACEAE

Dryopteris arguta
2019 Ron Vanderhoff
Dryopteris arguta
2004 Brent Miller
Dryopteris arguta
2019 Jacob Smith

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
2019 Amy Rapport
Dudleya farinosa
2019 Patrick Furtado
Dudleya farinosa
2017 John Doyen

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania ambrosioides
2008 Keir Morse
Dysphania ambrosioides
2008 Keir Morse
Dysphania ambrosioides
2013 Zoya Akulova

Dysphania botrys    Jerusalem oak goosefoot
non-native
Annual herb

CHENOPODIACEAE

Dysphania botrys
2008 John Dittes
Dysphania botrys
1998 Larry Blakely
Dysphania botrys
2008 John Dittes

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

CYPERACEAE

Eleocharis macrostachya
2004 Carol W. Witham
Eleocharis macrostachya
2001 John Game
Eleocharis macrostachya
2019 Ron Vanderhoff

Eleocharis parvula    Dwarf spikerush,  Small spikerush
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
2014 Zoya Akulova
Elodea canadensis
2008 Louis-M. Landry
Elodea canadensis
2010 Louis-M. Landry

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

POACEAE

Elymus caput-medusae
2019 Ron Vanderhoff
Elymus caput-medusae
2019 Jennifer Mo
Elymus caput-medusae
2010 Zoya Akulova

Elymus glaucus    Blue wildrye
native
Perennial grass

POACEAE

Elymus glaucus
2009 Keir Morse
Elymus glaucus
2005 Brianna M. Richardson
Elymus glaucus
2009 Keir Morse

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

POACEAE

Elymus glaucus ssp. virescens
2013 Robert Steers/NPS
Elymus glaucus ssp. virescens
2017 Ron Vanderhoff
Elymus glaucus ssp. virescens
2017 Ron Vanderhoff

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

POACEAE

Elymus mollis ssp. mollis
2008 Neal Kramer
Elymus mollis ssp. mollis
2008 Neal Kramer
Elymus mollis ssp. mollis
2012 Robert Steers/NPS

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
2010 Louis-M. Landry
Elymus trachycaulus
2007 Steve Matson
Elymus trachycaulus
2008 Louis-M. Landry

Elymus trachycaulus ssp. trachycaulus    Slender wheatgrass
native
Perennial grass

POACEAE

Elymus trachycaulus ssp. trachycaulus
2008 Louis-M. Landry
Elymus trachycaulus ssp. trachycaulus
2007 Steve Matson
Elymus trachycaulus ssp. trachycaulus
2010 Louis-M. Landry

Enemion stipitatum    Siskiyou false rue anemone
native
Perennial herb

RANUNCULACEAE

Enemion stipitatum
2008 Keir Morse
Enemion stipitatum
2007 F. Gauna

Epilobium angustifolium    Fireweed
native
Perennial herb

ONAGRACEAE

Epilobium angustifolium
2018 Chico Hiking Association
Epilobium angustifolium
2010 Louis-M. Landry
Epilobium angustifolium
2014 Bill Thiessen

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

ONAGRACEAE

Epilobium brachycarpum
2016 Ron Vanderhoff
Epilobium brachycarpum
2016 Keir Morse
Epilobium brachycarpum
2018 Ron Vanderhoff

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

ONAGRACEAE

Epilobium ciliatum
2019 Gary McDonald
Epilobium ciliatum
2012 Ron Vanderhoff
Epilobium ciliatum
2019 Patrick Furtado

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 Ron Vanderhoff
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
2007 Neal Kramer
Epilobium ciliatum ssp. watsonii
2019 Patrick Furtado
Epilobium ciliatum ssp. watsonii
2011 Dylan Neubauer

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
2009 Keir Morse
Epilobium minutum
2019 Julian Geoghegan
Epilobium minutum
2015 Chris Jaster

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

EQUISETACEAE

Equisetum arvense
2006 Robert Sivinski
Equisetum arvense
2012 Neal Kramer
Equisetum arvense
2008 Dr. Amadej Trnkoczy

Equisetum hyemale ssp. affine    Giant scouring rush
native
Fern

EQUISETACEAE

Equisetum hyemale ssp. affine
2008 Keir Morse
Equisetum hyemale ssp. affine
2012 Neal Kramer
Equisetum hyemale ssp. affine
2008 Neal Kramer

Equisetum laevigatum    Horsetail,  Smooth horsetail,  Smooth scouring rush
native
Fern

EQUISETACEAE

Equisetum laevigatum
2008 Neal Kramer
Equisetum laevigatum
2008 Neal Kramer
Equisetum laevigatum
2005 James M. Andre

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

EQUISETACEAE

Equisetum telmateia ssp. braunii
2008 Zoya Akulova
Equisetum telmateia ssp. braunii
2008 Neal Kramer
Equisetum telmateia ssp. braunii
2015 Ron Vanderhoff

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

ASTERACEAE

Erechtites arguta
2009 Zoya Akulova
Erechtites arguta
2015 Zoya Akulova
Erechtites arguta
2006 Adonis (Don) Tate

Erica lusitanica    Spanish heather
invasive non-native
Shrub

ERICACEAE

Erica lusitanica
2010 Eric Wrubel
Erica lusitanica
2010 Eric Wrubel
Erica lusitanica
2001 CDFA

Erigeron canadensis    Canada horseweed
native
Annual herb

ASTERACEAE

Erigeron canadensis
2005 Luigi Rignanese
Erigeron canadensis
2018 Matthew Chaney
Erigeron canadensis
2016 John Doyen

Erigeron foliosus    Leafy daisy,  Leafy fleabane
native
Perennial herb

ASTERACEAE

Erigeron foliosus
2016 John Doyen
Erigeron foliosus
2016 John Doyen
Erigeron foliosus
2004 George W. Hartwell

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

ASTERACEAE

Erigeron foliosus var. hartwegii
2009 Barry Breckling
Erigeron foliosus var. hartwegii
2017 Steven Perry
Erigeron foliosus var. hartwegii
2016 Steve Matson

Erigeron glaucus    Seaside daisy,  Seaside fleabane
native
Perennial herb

ASTERACEAE

Erigeron glaucus
2019 James Gonsman
Erigeron glaucus
2018 Bill Schmidt
Erigeron glaucus
2018 Asa B Spade

Erigeron inornatus    California rayless daisy,  California rayless fleabane
native
Perennial herb

ASTERACEAE

Erigeron inornatus
2006 Steve Matson
Erigeron inornatus
2008 Zoya Akulova
Erigeron inornatus
2006 Steve Matson

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

ASTERACEAE

Erigeron inornatus var. inornatus
2015 Richard Spellenberg
Erigeron inornatus var. inornatus
2014 John Doyen
Erigeron inornatus var. inornatus
2014 John Doyen

Erigeron philadelphicus    Philadelphia fleabane
native
Perennial herb

ASTERACEAE

Erigeron philadelphicus
2005 Christopher L. Christie
Erigeron philadelphicus
2011 Zoya Akulova
Erigeron philadelphicus
2014 Julie Kierstead Nelson

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

ASTERACEAE

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

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

POLYGONACEAE

Eriogonum latifolium
2017 Adam Chasey
Eriogonum latifolium
2014 James Gonsman
Eriogonum latifolium
2015 Ralph Gibson

Eriogonum nudum    Naked buckwheat,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum
2007 Michelle Cloud-Hughes
Eriogonum nudum
2019 Susan McDougall
Eriogonum nudum
2020 Stacie Wolny

Eriogonum nudum var. nudum    Naked buckwheat,  Naked stemmed eriogonum,  Nude buckwheat
native
Shrub

POLYGONACEAE

Eriogonum nudum var. nudum
2014 James Gonsman
Eriogonum nudum var. nudum
2014 James Gonsman
Eriogonum nudum var. nudum
2019 Chico Hiking Association

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

POLYGONACEAE

Eriogonum nudum var. oblongifolium
1991 Gary A. Monroe
Eriogonum nudum var. oblongifolium
2009 Neal Kramer
Eriogonum nudum var. oblongifolium
2009 Neal Kramer

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

ASTERACEAE

Eriophyllum lanatum
2001 Jeff Abbas
Eriophyllum lanatum
2017 John Doyen
Eriophyllum lanatum
2020 Julie A. Kierstead

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

ASTERACEAE

Eriophyllum lanatum var. achilleoides
2019 Susan McDougall
Eriophyllum lanatum var. achilleoides
2015 James Gonsman
Eriophyllum lanatum var. achilleoides
2011 Neal Kramer

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

ASTERACEAE

Eriophyllum staechadifolium
2013 James Gonsman
Eriophyllum staechadifolium
2016 Andrew Longman
Eriophyllum staechadifolium
2019 Mary Conway

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
2012 Neal Kramer
Erodium botrys
2014 Keir Morse

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

GERANIACEAE

Erodium cicutarium
2016 Keir Morse
Erodium cicutarium
2020 Julia Markey
Erodium cicutarium
2019 Diane Etchison

Erysimum capitatum    Sanddune wallflower,  Western wallflower
native
Perennial herb

BRASSICACEAE

Erysimum capitatum
2018 Janith Johnson
Erysimum capitatum
2007 Thomas Stoughton
Erysimum capitatum
2019 Diane Etchison

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
2019 Diane Etchison

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
native
Perennial herb (bulb)

LILIACEAE

Erythronium oregonum
2011 Steven Thorsted
Erythronium oregonum
2011 Steven Thorsted
Erythronium oregonum
2000 Jerry Murray

Erythronium revolutum    Mahogany fawn lily
native
Perennial herb (bulb)

LILIACEAE

Erythronium revolutum
2006 Chris Wagner
Erythronium revolutum
2015 John Doyen
Erythronium revolutum
2019 Tristan K Cole

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
2014 Zoya Akulova
Eschscholzia californica
2009 Barry Rice
Eschscholzia californica
2019 Cynthia Powell

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
2008 Zoya Akulova
Eucalyptus pulverulenta
2015 Zoya Akulova
Eucalyptus pulverulenta
2015 Zoya Akulova

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

MYRTACEAE

Eucalyptus sideroxylon
2009 Neal Kramer
Eucalyptus sideroxylon
2016 Zoya Akulova
Eucalyptus sideroxylon
2009 Neal Kramer

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
2002 Brad Kelley
Euonymus occidentalis var. occidentalis
2014 Robert Sikora
Euonymus occidentalis var. occidentalis
2006 Dean Wm. Taylor

Euphorbia crenulata    Chinese caps,  Chinesecaps
native
Annual, Perennial herb

EUPHORBIACEAE

Euphorbia crenulata
2009 Barry Breckling
Euphorbia crenulata
2015 John Doyen
Euphorbia crenulata
2008 Keir Morse

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

EUPHORBIACEAE

Euphorbia lathyris
2014 Neal Kramer
Euphorbia lathyris
2014 Neal Kramer
Euphorbia lathyris
2018 Reed Crane

Eurybia radulina    Roughleaf aster
native
Perennial herb

ASTERACEAE

Eurybia radulina
2020 Belinda Lo
Eurybia radulina
2008 Keir Morse
Eurybia radulina
2020 Belinda Lo

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
Nick Kurzenko
Fallopia sachalinensis
2001 CDFA
Fallopia sachalinensis
2013 Domenic Bongio

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

POACEAE

Festuca arundinacea
2008 Keir Morse
Festuca arundinacea
2008 Keir Morse
Festuca arundinacea
2020 Thomas Reyes

Festuca bromoides    Brome fescue
non-native
Annual grass

POACEAE

Festuca bromoides
2008 Keir Morse
Festuca bromoides
2012 Aaron Arthur
Festuca bromoides
2012 Robert Steers/NPS

Festuca californica    California fescue
native
Perennial grass

POACEAE

Festuca californica
2019 Justin Luong
Festuca californica
2008 Keir Morse
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
2008 Keir Morse
Festuca californica var. californica
2012 Aaron Arthur

Festuca elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

Festuca elmeri
2002 Dean Wm. Taylor
Festuca elmeri
2020 John Rawlings
Festuca elmeri
2008 Steve Matson

Festuca elmeri var. elmeri    Coast fescue,  Elmer fescue
native
Perennial grass

POACEAE

Festuca elmeri var. elmeri
2002 Dean Wm. Taylor
Festuca elmeri var. elmeri
2020 John Rawlings
Festuca elmeri var. elmeri
2008 Steve Matson

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

POACEAE

Festuca idahoensis
2008 Keir Morse
Festuca idahoensis
2013 Robert Steers/NPS
Festuca idahoensis
2008 Keir Morse

Festuca myuros    Rattail sixweeks grass
invasive non-native
Annual grass

POACEAE

Festuca myuros
2015 Gary McDonald
Festuca myuros
2013 Al Keuter
Festuca myuros
2013 Al Keuter

Festuca occidentalis    Western fescue
native
Perennial grass

POACEAE

Festuca occidentalis
2008 Keir Morse
Festuca occidentalis
2011 Steve Matson
Festuca occidentalis
2011 Steve Matson

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

POACEAE

Festuca perennis
2004 Carol W. Witham
Festuca perennis
2018 MCOSD EDRR
Festuca perennis
2003 James B. Gratiot

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
2013 Robert Steers/NPS
Festuca rubra
2012 Aaron Arthur
Festuca rubra
2014 Phil Pullen

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
2008 Steve Matson
Festuca subulata
2014 Molly Ferrell
Festuca subulata
2020 Susan McDougall

Festuca subuliflora    Coast range fescue,  Crinkleawn fescue
native
Perennial grass

POACEAE

Festuca subuliflora
2008 Steve Matson
Festuca subuliflora
2008 Steve Matson
Festuca subuliflora
2008 Steve Matson

Festuca temulenta    Darnel, tares
non-native
Annual grass

POACEAE

Festuca temulenta
2013 Al Keuter
Festuca temulenta
2016 Spade Natural Resources Consulting
Festuca temulenta
2013 Al Keuter

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
2020 Susan McDougall
Fragaria chiloensis
2009 Thomas Stoughton

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
2019 Mary Conway
Frangula californica ssp. californica
2017 Gary McDonald
Frangula californica ssp. californica
2019 Mary Conway

Frangula californica ssp. occidentalis    Wetern california coffeeberry
native
Shrub

RHAMNACEAE

Frangula californica ssp. occidentalis
2008 Keir Morse
Frangula californica ssp. occidentalis
2015 Susan McDougall
Frangula californica ssp. occidentalis
2019 Susan McDougall

Frangula purshiana    Cascara buckthorn
native
Tree, Shrub

RHAMNACEAE

Frangula purshiana
2012 Vernon Smith
Frangula purshiana
2014 Susan McDougall
Frangula purshiana
2014 Zoya Akulova

Fraxinus latifolia    Oregon ash
native
Tree

OLEACEAE

Fraxinus latifolia
2007 Dr. Mark S. Brunell
Fraxinus latifolia
2019 Catherine Capone
Fraxinus latifolia
2008 Keir Morse

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

LILIACEAE

Fritillaria affinis
2017 Stephen Rosenthal
Fritillaria affinis
2005 Doreen L. Smith
Fritillaria affinis
2020 Tina Curiel

Galium ambiguum    Yolla bolly bedstraw
native
Perennial herb

RUBIACEAE

Galium ambiguum
2009 Julie Kierstead Nelson
Galium ambiguum
2015 John Doyen
Galium ambiguum
2015 John Doyen

Galium ambiguum ssp. siskiyouense    Siskiyou bedstraw
native
Perennial herb

RUBIACEAE

Galium ambiguum ssp. siskiyouense
2009 Sierra Pacific Industries
Galium ambiguum ssp. siskiyouense
2015 John Doyen
Galium ambiguum ssp. siskiyouense
2015 John Doyen

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

RUBIACEAE

Galium aparine
2020 Ron Vanderhoff
Galium aparine
2008 Gary McDonald
Galium aparine
2020 Ron Vanderhoff

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

RUBIACEAE

Galium bolanderi
2008 Neal Kramer
Galium bolanderi
2015 John Doyen
Galium bolanderi
2011 Steve Matson

Galium californicum    California bedstraw
native
Perennial herb

RUBIACEAE

Galium californicum
2014 Richard Chasey
Galium californicum
2015 jamie smith
Galium californicum
2006 Steve Matson

Galium divaricatum    Lamarck's bedstraw
non-native
Annual herb

RUBIACEAE

Galium divaricatum
2008 Steve Matson
Galium divaricatum
2008 Steve Matson
Galium divaricatum
2008 Steve Matson

Galium parisiense    Wall bedstraw
non-native
Annual herb

RUBIACEAE

Galium parisiense
2009 Barry Breckling
Galium parisiense
2019 Diane Etchison
Galium parisiense
2005 Keir Morse

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

RUBIACEAE

Galium porrigens
2002 Tony Morosco
Galium porrigens
2013 Keir Morse
Galium porrigens
2019 Cynthia Powell

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

RUBIACEAE

Galium trifidum
2012 Jean Pawek
Galium trifidum
2009 Keir Morse
Galium trifidum
2013 Debra L. Cook

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

RUBIACEAE

Galium triflorum
2018 Ken Hickman
Galium triflorum
2019 Chico Hiking Association
Galium triflorum
2008 Keir Morse

Gamochaeta ustulata    Featherweed
native
Perennial herb

ASTERACEAE

Gamochaeta ustulata
2019 Gary McDonald
Gamochaeta ustulata
2019 Gary McDonald
Gamochaeta ustulata
2019 Patrick Furtado

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

GARRYACEAE

Garrya buxifolia
2009 Norman Jensen
Garrya buxifolia
2019 Susan McDougall
Garrya buxifolia
2011 Kjirsten Wayman

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

GARRYACEAE

Garrya elliptica
2004 Michael Charters
Garrya elliptica
2009 Aaron Schusteff
Garrya elliptica
2014 Zoya Akulova

Gastridium phleoides    Nit grass
non-native
Annual grass

POACEAE

Gastridium phleoides
2009 Zoya Akulova
Gastridium phleoides
2009 Neal Kramer
Gastridium phleoides
2017 Gary McDonald

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
2019 Ron Vanderhoff
Genista monspessulana
2019 Ron Vanderhoff

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

GENTIANACEAE

Gentiana affinis var. ovata
2019 Tristan K Cole
Gentiana affinis var. ovata
2013 John Doyen
Gentiana affinis var. ovata
2007 Dr. Mark S. Brunell

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
2003 Lynn Watson
Geranium dissectum
2015 Chris Jaster
Geranium dissectum
2019 Randy Huey

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

GERANIACEAE

Geranium lucidum
2016 Dr. Amadej Trnkoczy
Geranium lucidum
2011 Phil Pullen
Geranium lucidum
2016 Dana York

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

GERANIACEAE

Geranium molle
2019 Chico Hiking Association
Geranium molle
2018 Stacie Wolny
Geranium molle
2018 Stacie Wolny

Geranium oreganum    Oregon geranium
native
Perennial herb

GERANIACEAE

Geranium oreganum
2005 Christopher L. Christie
Geranium oreganum
2007 Dianne Fristrom
Geranium oreganum
1995 Saint Mary's College of California

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

GERANIACEAE

Geranium pusillum
2012 Phil Pullen
Geranium pusillum
1995 Saint Mary's College of California
Geranium pusillum
1995 Saint Mary's College of California

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
2015 Debra L. Cook
Geum macrophyllum
2019 Julie A. Kierstead
Geum macrophyllum
2019 Julie A. Kierstead

Gilia capitata    Blue field gilia,  Bluehead gilia
native
Annual herb

POLEMONIACEAE

Gilia capitata
2011 Gerald Carr
Gilia capitata
2003 Charles E. Jones
Gilia capitata
2011 Gerald Carr

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

POLEMONIACEAE

Gilia capitata ssp. pacifica
2012 Asa Spade
Gilia capitata ssp. pacifica
2006 Doreen L. Smith
Gilia capitata ssp. pacifica
2012 Asa Spade

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

CAMPANULACEAE

Githopsis specularioides
2016 David popp
Githopsis specularioides
2011 Steven Perry
Githopsis specularioides
2018 John Game

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
1998 Nick Kurzenko
Glehnia littoralis
1995 Saint Mary's College of California

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

APIACEAE

Glehnia littoralis ssp. leiocarpa
2011 Ryan Batten
Glehnia littoralis ssp. leiocarpa
2013 Dana York
Glehnia littoralis ssp. leiocarpa
2018 Michelle Forys

Glyceria elata    Fowl mannagrass,  Tall mannagrass
native
Perennial grass

POACEAE

Glyceria elata
2009 Zoya Akulova
Glyceria elata
2010 Keir Morse
Glyceria elata
2008 Steve Matson

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
2018 Ken Hickman
Goodyera oblongifolia
2019 Glenn Fine
Goodyera oblongifolia
2006 Louis-M. Landry

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

ASTERACEAE

Grindelia stricta
2019 Patrick Furtado
Grindelia stricta
2014 James Gonsman
Grindelia stricta
2018 Julian Geoghegan

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

ASTERACEAE

Grindelia stricta var. platyphylla
2011 Neal Kramer
Grindelia stricta var. platyphylla
2016 Neal Kramer
Grindelia stricta var. platyphylla
2017 James Gonsman

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

AGAVACEAE

Hastingsia alba
2005 Steve Matson
Hastingsia alba
2020 Chico Hiking Association
Hastingsia alba
2018 Adam Chasey

Hastingsia serpenticola    Klamath rushlily,  Siskiyou hastingsia
native
Perennial herb

AGAVACEAE

Hastingsia serpenticola
2007 Norman Jensen
Hastingsia serpenticola
2008 Keir Morse
Hastingsia serpenticola
2019 Julie Kierstead Nelson

Hastingsia serpentinicola    Klamath rushlily,  Siskiyou hastingsia
native
Perennial herb

AGAVACEAE

Hastingsia serpentinicola
2007 Norman Jensen
Hastingsia serpentinicola
2008 Keir Morse
Hastingsia serpentinicola
2019 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
2009 Phil Pullen

Helenium puberulum    Rosilla,  Sneezeweed
native
Perennial herb

ASTERACEAE

Helenium puberulum
2019 Patrick Furtado
Helenium puberulum
2015 Stephen Rosenthal
Helenium puberulum
2018 Rachelle Gray

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
2011 Ryan Batten
Hemitomes congestum
2006 Charles E. Jones

Hemizonia congesta    Hayfield tarweed
native
Annual herb

ASTERACEAE

Hemizonia congesta
2015 Vernon Smith
Hemizonia congesta
2018 Stacie Wolny
Hemizonia congesta
2019 Jennifer Mo

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

ASTERACEAE

Hemizonia congesta ssp. tracyi
2016 Steve Matson
Hemizonia congesta ssp. tracyi
2016 Steve Matson
Hemizonia congesta ssp. tracyi
2007 Ellen Tatum

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

ASTERACEAE

Hemizonia tracyi
2016 Steve Matson
Hemizonia tracyi
2016 Steve Matson
Hemizonia tracyi
2007 Ellen Tatum

Heracleum maximum    Common cowparsnip
native
Perennial herb

APIACEAE

Heracleum maximum
2008 Neal Kramer
Heracleum maximum
2018 Julie Kierstead Nelson
Heracleum maximum
2018 Julie Kierstead Nelson

Hesperocyparis macrocarpa    Monterey cypress
native
Tree

CUPRESSACEAE

Hesperocyparis macrocarpa
2019 Patrick Furtado
Hesperocyparis macrocarpa
2009 Keir Morse
Hesperocyparis macrocarpa
2019 Susan McDougall

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

ASTERACEAE

Heterotheca oregona var. oregona
2001 Redwood National and State Parks
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
2013 Debra L. Cook
Heuchera micrantha
2020 Susan McDougall
Heuchera micrantha
2018 Mary Conway

Hieracium albiflorum    White flowered hawkweed,  White hawkweed
native
Perennial herb

ASTERACEAE

Hieracium albiflorum
2008 Keir Morse
Hieracium albiflorum
2003 Steve Matson
Hieracium albiflorum
2018 MCOSD EDRR

Hieracium bolanderi    Bolander's hawkweed
native
Perennial herb

ASTERACEAE

Hieracium bolanderi
© 2015 Dana York
Hieracium bolanderi
2015 Dana York
Hieracium bolanderi
2015 Richard Spellenberg

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

ASTERACEAE

Hieracium cynoglossoides
2001 Jeff Abbas
Hieracium cynoglossoides
2011 Steve Matson
Hieracium cynoglossoides
2012 Jean Pawek

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

ASTERACEAE

Hieracium scouleri
2001 Jeff Abbas
Hieracium scouleri
2011 Steve Matson
Hieracium scouleri
2012 Jean Pawek

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

PLANTAGINACEAE

Hippuris vulgaris
2010 Louis-M. Landry
Hippuris vulgaris
2011 Steven Perry
Hippuris vulgaris
2018 Isaac Chellman

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
2018 Chico Hiking Association
Holodiscus discolor
2020 Camille Nowell
Holodiscus discolor
2018 Ron Vanderhoff

Hordeum brachyantherum    Meadow barley
native
Perennial grass

POACEAE

Hordeum brachyantherum
2004 Steve Matson
Hordeum brachyantherum
2010 Keir Morse
Hordeum brachyantherum
2010 Rebecca Wenk

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

POACEAE

Hordeum jubatum
2005 Louis-M. Landry
Hordeum jubatum
2002 Steve Matson
Hordeum jubatum
2009 Barry Rice

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

POACEAE

Hordeum marinum ssp. gussonianum
2009 Neal Kramer
Hordeum marinum ssp. gussonianum
2004 Carol W. Witham
Hordeum marinum ssp. gussonianum
2008 Zoya Akulova

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

POACEAE

Hordeum murinum
2007 Luigi Rignanese
Hordeum murinum
2010 Michael O'Brien
Hordeum murinum
2007 Luigi Rignanese

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

POACEAE

Hordeum murinum ssp. glaucum
2009 Barry Rice
Hordeum murinum ssp. glaucum
2015 Gary McDonald
Hordeum murinum ssp. glaucum
2015 Gary McDonald

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

POACEAE

Hordeum murinum ssp. leporinum
2009 Keir Morse
Hordeum murinum ssp. leporinum
2010 Neal Kramer
Hordeum murinum ssp. leporinum
2008 Zoya Akulova

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
native
Perennial herb

ROSACEAE

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

Hosackia gracilis    Harlequin lotus
native
Perennial herb

FABACEAE

Hosackia gracilis
2019 Paul Hankamp
Hosackia gracilis
2020 Jinx McCombs
Hosackia gracilis
2020 Mary Conway

Hosackia oblongifolia    Narrow leaved lotus
native
Perennial herb

FABACEAE

Hosackia oblongifolia
2007 Dianne Fristrom
Hosackia oblongifolia
2019 Zachary Snider
Hosackia oblongifolia
2017 Ron Vanderhoff

Hosackia pinnata    Pinnate lotus
native
Perennial herb

FABACEAE

Hosackia pinnata
2011 Steve Matson
Hosackia pinnata
2015 Steve Matson
Hosackia pinnata
2015 Steve Matson

Hosackia rosea    Rose flowered lotus
native
Perennial herb

FABACEAE

Hosackia rosea
2013 Terry Gosliner
Hosackia rosea
J. E.(Jed) and Bonnie McClellan 2005 California Academy of Sciences
Hosackia rosea
2019 jon thompson


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

ARALIACEAE

Hydrocotyle ranunculoides
2013 Neal Kramer
Hydrocotyle ranunculoides
1996 Doreen L. Smith
Hydrocotyle ranunculoides
2009 Dr. Mark S. Brunell

Hydrophyllum occidentale    California waterleaf,  Western waterleaf
native
Perennial herb

BORAGINACEAE

Hydrophyllum occidentale
2020 Susan McDougall
Hydrophyllum occidentale
2015 John Doyen
Hydrophyllum occidentale
2020 Susan McDougall

Hydrophyllum tenuipes    Pacific waterleaf
native
Perennial herb

BORAGINACEAE

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
2017 David Greenberger
Hypericum anagalloides
2020 Joaquin Hale
Hypericum anagalloides
2020 joaquin hale

Hypericum beanii   


Hypericum calycinum    Aaron's beard
non-native
Shrub

HYPERICACEAE

Hypericum calycinum
2010 National Park Service
Hypericum calycinum
2011 Tony Morosco
Hypericum calycinum
2018 Brian Charles

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
2005 Louis-M. Landry
Hypericum perforatum
2008 Keir Morse
Hypericum perforatum
2018 mark kircher

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

HYPERICACEAE

Hypericum scouleri
2008 Keir Morse
Hypericum scouleri
2014 Neal Kramer
Hypericum scouleri
2018 Julie Kierstead Nelson

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

ASTERACEAE

Hypochaeris glabra
2005 Steve Matson
Hypochaeris glabra
2005 Steve Matson
Hypochaeris glabra
2005 Steve Matson

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

ASTERACEAE

Hypochaeris radicata
2008 Sean B. Smith
Hypochaeris radicata
2017 Gary McDonald
Hypochaeris radicata
2017 Gary McDonald

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

AQUIFOLIACEAE

Ilex aquifolium
2009 Phil Pullen
Ilex aquifolium
2010 Vernon Smith
Ilex aquifolium
2007 Luisa Arana Navaridas

Iris douglasiana    Douglas iris,  Douglas' iris
native
Perennial herb

IRIDACEAE

Iris douglasiana
2019 Adam Chasey
Iris douglasiana
2020 Susan McDougall
Iris douglasiana
2009 John W. Wall

Iris innominata    Del norte county iris
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
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
2013 Ron Clark
Iris tenuissima
2009 Julie Kierstead Nelson
Iris tenuissima
2020 Julie A. Kierstead

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

BRASSICACEAE

Isatis tinctoria
2005 Luigi Rignanese
Isatis tinctoria
2019 Julie Kierstead Nelson
Isatis tinctoria
2019 Julie Kierstead Nelson

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
2003 Steve Matson
Juncus bolanderi
2010 Robert Steers
Juncus bolanderi
2010 Robert Steers

Juncus breweri    Brewer's rush
native
Perennial grasslike herb

JUNCACEAE

Juncus breweri
2003 Steve Matson
Juncus breweri
2003 Steve Matson
Juncus breweri
2003 Steve Matson

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
2004 James M. Andre
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
2012 Gary A. Monroe
Juncus confusus
2012 Gary A. Monroe
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
2007 Neal Kramer
Juncus effusus ssp. pacificus
2008 Neal Kramer
Juncus effusus ssp. pacificus
2013 Robert Steers/NPS

Juncus hesperius    Coast or bog rush
native
Perennial grasslike herb

JUNCACEAE

Juncus hesperius
2019 Patrick Furtado
Juncus hesperius
2019 Patrick Furtado
Juncus hesperius
2012 Aaron E. Sims

Juncus lesueurii    Dune rush
native
Perennial grasslike herb

JUNCACEAE

Juncus lesueurii
2007 Neal Kramer
Juncus lesueurii
2004 Steve Matson
Juncus lesueurii
2004 Steve Matson

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

JUNCACEAE

Juncus occidentalis
2007 Neal Kramer
Juncus occidentalis
2015 Neal Kramer
Juncus occidentalis
2007 Neal Kramer

Juncus patens    Common rush,  Spreading rush
native
Perennial grasslike herb

JUNCACEAE

Juncus patens
2008 Neal Kramer
Juncus patens
2014 Mike Wood
Juncus patens
2007 Neal Kramer

Juncus tenuis    Poverty rush,  Slender rush
native
Perennial grasslike herb

JUNCACEAE

Juncus tenuis
2009 Neal Kramer
Juncus tenuis
2008 Keir Morse
Juncus tenuis
2008 Keir Morse

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

JUNCACEAE

Juncus tenuis var. congestus
2007 Neal Kramer
Juncus tenuis var. congestus
2015 Neal Kramer
Juncus tenuis var. congestus
2007 Neal Kramer

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

JUNCACEAE

Juncus xiphioides
2016 Erik Larsen
Juncus xiphioides
2017 Ron Vanderhoff
Juncus xiphioides
2017 Ron Vanderhoff

Juniperus communis    Common juniper,  Dwarf juniper
native
Shrub

CUPRESSACEAE

Juniperus communis
2010 Louis-M. Landry
Juniperus communis
2013 Sierra Pacific Industries
Juniperus communis
2010 Lee Dittmann

Juniperus communis var. saxatilis    Common juniper
native
Shrub

CUPRESSACEAE

Juniperus communis var. saxatilis
1995 Saint Mary's College of California
Juniperus communis var. saxatilis
2005 Dean Wm. Taylor, Ph.D.
Juniperus communis var. saxatilis
1995 Saint Mary's College of California

Keckiella corymbosa    Red beardtongue,  Redwood keckiella
native
Shrub

PLANTAGINACEAE

Keckiella corymbosa
2008 Neal Kramer
Keckiella corymbosa
2015 Robert Steers
Keckiella corymbosa
2012 Aaron Arthur

Koeleria cristata    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria cristata
2003 Bart and Susan Eisenberg
Koeleria cristata
2011 RT Hawke
Koeleria cristata
2020 Julie A. Kierstead

Koeleria macrantha    June grass,  Prairie junegrass
native
Perennial grass

POACEAE

Koeleria macrantha
2003 Bart and Susan Eisenberg
Koeleria macrantha
2011 RT Hawke
Koeleria macrantha
2020 Julie A. Kierstead

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
2019 David popp
Lactuca saligna
2012 Vernon Smith
Lactuca saligna
2008 Jorg Fleige

Lapsana communis    Common nipplewort,  Nipplewort
non-native
Annual herb

ASTERACEAE

Lapsana communis
2006 Louis-M. Landry
Lapsana communis
2007 Luigi Rignanese
Lapsana communis
2005 Louis-M. Landry

Lathyrus brownii    Brown's brush pea
native
Perennial herb

FABACEAE

Lathyrus brownii
1992 Gary A. Monroe
Lathyrus brownii
2019 Julie Kierstead Nelson
Lathyrus brownii
2016 John Doyen

Lathyrus delnorticus    Del norte pea
native
Perennial herb

FABACEAE

Lathyrus delnorticus
2007 Norman Jensen
Lathyrus delnorticus
2008 Keir Morse
Lathyrus delnorticus
2008 Keir Morse

Lathyrus japonicus    Beach pea,  Sea pea
native
Perennial herb

FABACEAE

Lathyrus japonicus
2010 Louis-M. Landry
Lathyrus japonicus
2008 Louis-M. Landry
Lathyrus japonicus
2010 Louis-M. Landry

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

FABACEAE

Lathyrus japonicus var. glaber
2010 Louis-M. Landry
Lathyrus japonicus var. glaber
2008 Louis-M. Landry
Lathyrus japonicus var. glaber
2010 Louis-M. Landry

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

FABACEAE

Lathyrus latifolius
2019 Julie Kierstead Nelson
Lathyrus latifolius
2008 Keir Morse
Lathyrus latifolius
2005 Dr. Amadej Trnkoczy

Lathyrus littoralis    Beach pea,  Silky beach pea
native
Perennial herb

FABACEAE

Lathyrus littoralis
2005 George W. Hartwell
Lathyrus littoralis
2005 George W. Hartwell
Lathyrus littoralis
2005 George W. Hartwell

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

FABACEAE

Lathyrus nevadensis ssp. nevadensis
2002 George W. Hartwell
Lathyrus nevadensis ssp. nevadensis
2019 Susan McDougall
Lathyrus nevadensis ssp. nevadensis
2019 Susan McDougall

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

FABACEAE

Lathyrus nevadensis var. nevadensis
2002 George W. Hartwell
Lathyrus nevadensis var. nevadensis
2019 Susan McDougall
Lathyrus nevadensis var. nevadensis
2019 Susan McDougall

Lathyrus palustris    Marsh pea
native
Perennial herb

FABACEAE

Lathyrus palustris
2008 Jennifer L. Kalt
Lathyrus palustris
2015 Aaron Arthur
Lathyrus palustris
2015 Aaron Arthur

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

FABACEAE

Lathyrus pauciflorus ssp. brownii
1992 Gary A. Monroe
Lathyrus pauciflorus ssp. brownii
2019 Julie Kierstead Nelson
Lathyrus pauciflorus ssp. brownii
2016 John Doyen

Lathyrus sphaericus    Grass peavine
non-native
Annual herb

FABACEAE

Lathyrus sphaericus
2018 James Gonsman
Lathyrus sphaericus
2008 Keir Morse
Lathyrus sphaericus
2008 Keir Morse

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
2013 Ron Clark
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
2019 Ron Vanderhoff
Lathyrus vestitus var. vestitus
2015 Chris Jaster

Layia carnosa    Beach layia,  Beach tidytips
native
Annual herb

ASTERACEAE

Layia carnosa
2007 Aaron Schusteff
Layia carnosa
2019 Scott Yarger
Layia carnosa
2019 Joey Santore

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
2010 Zoya Akulova
Leontodon saxatilis
2008 Zoya Akulova
Leontodon saxatilis
2009 Zoya Akulova

Lepidium didymum    Lesser swine cress
non-native
Annual herb

BRASSICACEAE

Lepidium didymum
2007 Neal Kramer
Lepidium didymum
2009 Neal Kramer
Lepidium didymum
2016 Ron Vanderhoff

Leptosiphon androsaceus    False babystars
native
Annual herb

POLEMONIACEAE

Leptosiphon androsaceus
2019 Eliezer Margolis
Leptosiphon androsaceus
2020 R.A. Chasey
Leptosiphon androsaceus
2014 James Gonsman

Leptosiphon bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Leptosiphon bicolor
2008 Steve Conger
Leptosiphon bicolor
2019 Chico Hiking Association
Leptosiphon bicolor
2011 Neal Kramer

Leptosiphon parviflorus    Variable linanthus
native
Annual herb

POLEMONIACEAE

Leptosiphon parviflorus
2019 Ken Lunders
Leptosiphon parviflorus
2020 Ron Vanderhoff
Leptosiphon parviflorus
2016 Ron Vanderhoff

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

ASTERACEAE

Leucanthemum vulgare
2005 Lisa Powers
Leucanthemum vulgare
Nick Kurzenko
Leucanthemum vulgare
2019 Julian Geoghegan

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

APIACEAE

Ligusticum apiifolium
2008 Keir Morse
Ligusticum apiifolium
2008 Keir Morse
Ligusticum apiifolium
2008 Keir Morse

Ligusticum californicum    California licorice root,  California lovage
native
Perennial herb

APIACEAE

Ligusticum californicum
2011 Steve Matson
Ligusticum californicum
2011 Steve Matson
Ligusticum californicum
2011 Steve Matson

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

LILIACEAE

Lilium bolanderi
2000 John Game
Lilium bolanderi
2018 Anna Sereno
Lilium bolanderi
2018 Anna Sereno

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
2019 Cynthia Powell
Limnanthes douglasii ssp. nivea
2015 John Doyen
Limnanthes douglasii ssp. nivea
2019 Cynthia Powell

Linanthus bicolor ssp. bicolor    True babystars
native
Annual herb

POLEMONIACEAE

Linanthus bicolor ssp. bicolor
2008 Steve Conger
Linanthus bicolor ssp. bicolor
2019 Chico Hiking Association
Linanthus bicolor ssp. bicolor
2011 Neal Kramer

Linaria dalmatica    Dalmatian toadflax
non-native
Perennial herb

PLANTAGINACEAE

Linaria dalmatica
2008 Thomas Stoughton
Linaria dalmatica
2005 Louis-M. Landry
Linaria dalmatica
2015 Daniel Lay

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

PLANTAGINACEAE

Linaria genistifolia ssp. dalmatica
2006 Steven Thorsted
Linaria genistifolia ssp. dalmatica
2001 CDFA
Linaria genistifolia ssp. dalmatica
2001 CDFA

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

LINACEAE

Linum bienne
2007 Steve Matson
Linum bienne
2010 Neal Kramer
Linum bienne
2011 Steven Perry

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
2008 Norman Jensen
Listera banksiana
2017 Barry Rice
Listera banksiana
2019 Kolby Lundgren

Listera cordata    Heart leaved twayblade,  Heartleaf twayblade
native
Perennial herb

ORCHIDACEAE

Listera cordata
2013 Dr. Amadej Trnkoczy
Listera cordata
2011 Jean Pawek
Listera cordata
2013 Dr. Amadej Trnkoczy

native
Tree, Shrub

FAGACEAE

Lithocarpus densiflorus
2020 Asa B Spade
Lithocarpus densiflorus
2004 Kim Cabrera
Lithocarpus densiflorus
2008 Kim Cabrera

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

SAXIFRAGACEAE

Lithophragma affine
2020 Mary Conway
Lithophragma affine
2018 Hector Borjas
Lithophragma affine
2015 Ken Lunders

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

SAXIFRAGACEAE

Lithophragma affine ssp. affine
2020 Mary Conway
Lithophragma affine ssp. affine
2018 Hector Borjas
Lithophragma affine ssp. affine
2015 Ken Lunders

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

SAXIFRAGACEAE

Lithophragma parviflorum
2019 Gary McDonald
Lithophragma parviflorum
2019 Chico Hiking Association
Lithophragma parviflorum
2019 Gary McDonald

Logfia gallica    Narrowleaf cottonrose
non-native
Annual herb

ASTERACEAE

Logfia gallica
2013 Keir Morse
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
2004 Carol W. Witham
Lolium perenne ssp. multiflorum
2018 MCOSD EDRR
Lolium perenne ssp. multiflorum
2003 James B. Gratiot

Lomatium dissectum    Fern leaved lomatium,  Fernleaf biscuitroot
native
Perennial herb

APIACEAE

Lomatium dissectum
2008 Keir Morse
Lomatium dissectum
2013 David popp
Lomatium dissectum
2008 Keir Morse

Lomatium macrocarpum    Bigseed biscuitroot,  Large fruited lomatium
native
Perennial herb

APIACEAE

Lomatium macrocarpum
2018 Gary McDonald
Lomatium macrocarpum
2018 Gary McDonald
Lomatium macrocarpum
2018 Chico Hiking Association

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

APIACEAE

Lomatium utriculatum
2007 Lynn Watson
Lomatium utriculatum
2015 Debra L. Cook
Lomatium utriculatum
2015 James Gonsman

Lonicera hispidula    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera hispidula
2019 Stacie Wolny
Lonicera hispidula
2020 Amy Rapport
Lonicera hispidula
2019 Doug Zimmerman

Lonicera hispidula var. vacillans    Pink honeysuckle
native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera hispidula var. vacillans
2019 Stacie Wolny
Lonicera hispidula var. vacillans
2020 Amy Rapport
Lonicera hispidula var. vacillans
2019 Doug Zimmerman

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

CAPRIFOLIACEAE

Lonicera involucrata
2020 Camille Nowell
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
2007 Neal Kramer
Lonicera involucrata var. ledebourii
2020 Susan McDougall
Lonicera involucrata var. ledebourii
2014 James Gonsman

Lonicera nitida   


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

POACEAE

Lophochlaena refracta
2005 Doreen L. Smith
Lophochlaena refracta
2012 Asa Spade
Lophochlaena refracta
2004 Dean Wm. Taylor

Lotus aboriginum   


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

FABACEAE

Lotus corniculatus
2005 Louis-M. Landry
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
2019 Matt Berger
Lotus purshianus
2019 Rachelle Gray
Lotus purshianus
2019 Julie Kierstead Nelson

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
2019 Neal Kramer
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
2010 Keir Morse
Lupinus andersonii
2019 Diane Etchison
Lupinus andersonii
2019 Diane Etchison

Lupinus arboreus    Coastal bush lupine,  Yellow bush lupine
native
Shrub

FABACEAE

Lupinus arboreus
2019 Patrick Furtado
Lupinus arboreus
2013 James Gonsman
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 Ron Vanderhoff

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 Ron Vanderhoff

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

FABACEAE

Lupinus latifolius
2001 Steven Thorsted
Lupinus latifolius
2009 Thomas Stoughton
Lupinus latifolius
2009 Thomas Stoughton

Lupinus latifolius ssp. latifolius    Broad leaf lupine
native
Perennial herb

FABACEAE

Lupinus latifolius ssp. latifolius
2009 Thomas Stoughton
Lupinus latifolius ssp. latifolius
2019 Alice Cummings
Lupinus latifolius ssp. latifolius
2012 Aaron Arthur

Lupinus littoralis    Seashore lupine
native
Perennial herb

FABACEAE

Lupinus littoralis
2012 Aaron Arthur
Lupinus littoralis
2012 Aaron Arthur
Lupinus littoralis
2012 Aaron Arthur

Lupinus nanus    Sky lupine
native
Annual herb

FABACEAE

Lupinus nanus
2019 Phyllis Fitzsimons
Lupinus nanus
2019 Mary Conway
Lupinus nanus
2019 Phyllis Fitzsimons

Lupinus rivularis    Riverbank lupine
native
Perennial herb

FABACEAE

Lupinus rivularis
2005 John Pelafigue
Lupinus rivularis
1995 Saint Mary's College of California
Lupinus rivularis
2015 Aaron Arthur

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

JUNCACEAE

Luzula comosa
2019 Matt Berger
Luzula comosa
2012 Alan Castner
Luzula comosa
2003 Steve Matson

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

JUNCACEAE

Luzula parviflora
2005 George W. Hartwell
Luzula parviflora
2008 Louis-M. Landry
Luzula parviflora
2012 Aaron Arthur

Luzula subsessilis    Pacific woodrush
native
Perennial grasslike herb

JUNCACEAE

Luzula subsessilis
2013 Robert Steers/NPS
Luzula subsessilis
2013 Robert Steers/NPS

Lycopodium clavatum    Running clubmoss,  Running pine
native
Fern (rhizomatous)

LYCOPODIACEAE

Lycopodium clavatum
2010 Louis-M. Landry
Lycopodium clavatum
2005 Louis-M. Landry
Lycopodium clavatum
2008 Zoya Akulova

Lysichiton americanus    American skunkcabbage,  Yellow skunk cabbage
native
Perennial herb

ARACEAE

Lysichiton americanus
Albert P. Bekker 1999 California Academy of Sciences
Lysichiton americanus
2014 Susan McDougall
Lysichiton americanus
2018 Saskia Raether

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

LYTHRACEAE

Lythrum hyssopifolia
2019 Jennifer Mo
Lythrum hyssopifolia
2016 Andrew Longman
Lythrum hyssopifolia
2016 Andrew Longman

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

ASTERACEAE

Madia capitata
2013 Ron Vanderhoff
Madia capitata
2008 Keir Morse
Madia capitata
2011 Neal Kramer

Madia elegans    Common madia
native
Annual herb

ASTERACEAE

Madia elegans
2020 Amy Rapport
Madia elegans
2017 Michelle Bosch
Madia elegans
2018 Amy Rapport

Madia elegans ssp. elegans    Common madia
native
Annual herb

ASTERACEAE

Madia elegans ssp. elegans
2020 Amy Rapport
Madia elegans ssp. elegans
2017 Michelle Bosch
Madia elegans ssp. elegans
2018 Amy Rapport

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

ASTERACEAE

Madia exigua
2014 Ron Vanderhoff
Madia exigua
2015 Neal Kramer
Madia exigua
2013 Vernon Smith

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

ASTERACEAE

Madia gracilis
2015 Debra L. Cook
Madia gracilis
2020 Paul Aigner
Madia gracilis
2016 John Doyen

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

ASTERACEAE

Madia sativa
2013 Ron Vanderhoff
Madia sativa
2008 Keir Morse
Madia sativa
2011 Neal Kramer

Magnolia grandiflora    Southern magnolia
non-native
Tree

MAGNOLIACEAE

Magnolia grandiflora
Nick Kurzenko
Magnolia grandiflora
Nick Kurzenko
Magnolia grandiflora
Nick Kurzenko

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
2008 Matt Below
Maianthemum dilatatum
2020 Susan McDougall
Maianthemum dilatatum
J. E.(Jed) and Bonnie McClellan 2007 California Academy of Sciences

Maianthemum racemosum    Feathery false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum racemosum
2015 Stephen Rosenthal
Maianthemum racemosum
2019 Stacie Wolny
Maianthemum racemosum
2019 Matt Berger

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

RUSCACEAE

Maianthemum racemosum ssp. amplexicaule
2015 Stephen Rosenthal
Maianthemum racemosum ssp. amplexicaule
2019 Stacie Wolny
Maianthemum racemosum ssp. amplexicaule
2019 Matt Berger

Maianthemum stellatum    Starry false lily of the valley
native
Perennial herb

RUSCACEAE

Maianthemum stellatum
2019 Adam Chasey
Maianthemum stellatum
2020 Jean Anderson
Maianthemum stellatum
2020 Susan McDougall

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

ROSACEAE

Malus fusca
2008 Matt Below
Malus fusca
2010 Zoya Akulova
Malus fusca
2018 Cynthia Powell

Malus pumila    Paradise apple
non-native
Tree

ROSACEAE

Malus pumila
2005 Louis-M. Landry
Malus pumila
2005 Louis-M. Landry
Malus pumila
2008 Louis-M. Landry

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

MALVACEAE

Malva neglecta
2019 Randy Huey
Malva neglecta
2019 Randy Huey
Malva neglecta
2005 Brent Miller

Marah oreganus    Coast man-root
native
Perennial herb, Vine

CUCURBITACEAE

Marah oreganus
2013 Zoya Akulova
Marah oreganus
2020 Susan McDougall
Marah oreganus
2020 Susan McDougall

Matricaria discoidea    Pineapple weed
native
Annual herb

ASTERACEAE

Matricaria discoidea
2019 Diane Etchison
Matricaria discoidea
2019 Chico Hiking Association
Matricaria discoidea
2008 Thomas Stoughton

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

FABACEAE

Medicago arabica
2010 Aaron Arthur
Medicago arabica
2012 Neal Kramer
Medicago arabica
2009 Phil Pullen

Medicago lupulina    Black medick
non-native
Annual, Perennial herb

FABACEAE

Medicago lupulina
2003 Michael Charters
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
2008 Steve Matson
Medicago polymorpha
2003 Michael Charters
Medicago polymorpha
2004 Carol W. Witham

Medicago sativa    Alfalfa
non-native
Perennial herb

FABACEAE

Medicago sativa
2003 Michael Charters
Medicago sativa
2005 Louis-M. Landry
Medicago sativa
2003 Michael Charters

Melica aristata    Awned melic,  Bearded melicgrass
native
Perennial grass

POACEAE

Melica aristata
2011 Steve Matson
Melica aristata
2017 Belinda Lo
Melica aristata
2017 Belinda Lo

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

POACEAE

Melica geyeri
2008 Keir Morse
Melica geyeri
2013 Aaron Arthur
Melica geyeri
2019 John Rawlings

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

POACEAE

Melica geyeri var. geyeri
2008 Keir Morse
Melica geyeri var. geyeri
2013 Aaron Arthur
Melica geyeri var. geyeri
2019 John Rawlings

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

POACEAE

Melica harfordii
2008 Keir Morse
Melica harfordii
2017 Belinda Lo
Melica harfordii
2008 Keir Morse

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

POACEAE

Melica subulata
2008 Keir Morse
Melica subulata
2010 Robert Steers/NPS
Melica subulata
2020 Sara Timby

Melilotus alba    Yellow sweetclover
invasive non-native
Annual, Biennial herb

FABACEAE

Melilotus alba
2010 Jean Pawek
Melilotus alba
2005 Louis-M. Landry
Melilotus alba
2010 Lee Dittmann

Melilotus indica    Annual yellow sweetclover
non-native
Annual herb

FABACEAE

Melilotus indica
2009 Barry Breckling
Melilotus indica
2005 Cheri Miller
Melilotus indica
2009 Neal Kramer

Mentha arvensis    American wild mint,  Field mint,  Marsh mint
native
Perennial herb

LAMIACEAE

Mentha arvensis
2003 Steve Matson
Mentha arvensis
2013 Debra L. Cook
Mentha arvensis
2015 Barry Breckling

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
2013 Debra L. Cook
Mentha arvensis ssp. haplocalyx
2015 Barry Breckling

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
2015 James Gonsman
Mentha pulegium
2010 National Park Service
Mentha pulegium
2014 James Gonsman

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
2008 Keir Morse
Mentha spicata
2015 Barry Breckling
Mentha spicata
2014 Zoya Akulova

non-native
Perennial herb

LAMIACEAE

Mentha spicata var. spicata
2008 Keir Morse
Mentha spicata var. spicata
2015 Barry Breckling
Mentha spicata var. spicata
2014 Zoya Akulova

Mentha Xpiperita    Peppermint
non-native
Perennial herb

LAMIACEAE

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
2011 Jean Pawek
Menziesia ferruginea
2008 Matt Below
Menziesia ferruginea
2012 RT Hawke

Micranthes californica    Greene's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes californica
2002 Bart and Susan Eisenberg
Micranthes californica
2010 Robert Steers/NPS
Micranthes californica
2019 Matt Berger

Micranthes howellii    Howell's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes howellii
2008 Keir Morse
Micranthes howellii
2008 Norman Jensen
Micranthes howellii
2011 Norman Jensen

Micranthes integrifolia    Smooth leaf saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes integrifolia
2008 Keir Morse
Micranthes integrifolia
2015 John Doyen
Micranthes integrifolia
2019 Julie Kierstead Nelson

Micranthes marshallii    Marshall's saxifrage
native
Perennial herb

SAXIFRAGACEAE

Micranthes marshallii
2017 Barrett Jeffery
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
2015 Richard Spellenberg
Micropus californicus var. californicus
2012 Neal Kramer
Micropus californicus var. californicus
2020 Matt Berger

Microseris bigelovii    Coast microseris,  Coastal silverpuffs
native
Annual herb

ASTERACEAE

Microseris bigelovii
2011 Ryan Batten
Microseris bigelovii
2015 John Doyen
Microseris bigelovii
2013 Al Keuter

Microseris laciniata    Cut leaved scorzonella,  Cutleaf silverpuffs
native
Perennial herb

ASTERACEAE

Microseris laciniata
1995 Saint Mary's College of California
Microseris laciniata
2006 Dean Wm. Taylor

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
1995 Saint Mary's College of California
Microseris laciniata var. siskiyouensis
2006 Dean Wm. Taylor

Microseris nutans    Nodding microceris,  Nodding scorzonella,  Perennial nodding microseris
native
Perennial herb

ASTERACEAE

Microseris nutans
2003 Steve Matson
Microseris nutans
2015 Susan McDougall
Microseris nutans
2014 Jean Pawek

Microsteris gracilis    Slender phlox
native
Annual herb

POLEMONIACEAE

Microsteris gracilis
2019 Matt Berger
Microsteris gracilis
2016 Jim Moore
Microsteris gracilis
2019 Matt Berger

Mimulus aurantiacus    Sticky monkeyflower
native
Shrub

PHRYMACEAE

Mimulus aurantiacus
2019 Gary McDonald
Mimulus aurantiacus
2019 Stacie Wolny
Mimulus aurantiacus
2020 Ron Vanderhoff

Mimulus cardinalis    Cardinal monkey flower
native
Perennial herb

PHRYMACEAE

Mimulus cardinalis
Geoff Burleigh
Mimulus cardinalis
Geoff Burleigh
Mimulus cardinalis
2019 Diane Etchison

Mimulus dentatus    Tooth leaved monkeyflower
native
Perennial herb

PHRYMACEAE

Mimulus dentatus
and Buff Corsi © 2013 California Academy of Sciences
Mimulus dentatus
2005 Jerry Murray
Mimulus dentatus
2001 Steve Schoenig

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

PHRYMACEAE

Mimulus guttatus
2019 Stacie Wolny
Mimulus guttatus
2019 Chico Hiking Association
Mimulus guttatus
2015 James Gonsman

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

PHRYMACEAE

Mimulus guttatus var. guttatus
2019 Stacie Wolny
Mimulus guttatus var. guttatus
2019 Chico Hiking Association
Mimulus guttatus var. guttatus
2015 James Gonsman

Mimulus moschatus    Musk monkeyflower
native
Perennial herb

PHRYMACEAE

Mimulus moschatus
2020 Belinda Lo
Mimulus moschatus
2019 Matt Berger
Mimulus moschatus
2018 Julie Kierstead Nelson

Minuartia californica    California sandwort,  Sandwort
native
Annual herb

CARYOPHYLLACEAE

Minuartia californica
2015 John Doyen
Minuartia californica
2007 Carol W. Witham
Minuartia californica
2006 Steve Matson

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

CARYOPHYLLACEAE

Minuartia douglasii
2005 Steve Matson
Minuartia douglasii
2015 Barry Thomson
Minuartia douglasii
2014 Keir Morse

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
2009 Jorg Fleige
Modiola caroliniana
2020 Ron Vanderhoff
Modiola caroliniana
2020 Ron Vanderhoff

Moehringia macrophylla    Large leaved sandwort,  Largeleaf sandwort
native
Perennial herb

CARYOPHYLLACEAE

Moehringia macrophylla
2011 Jean Pawek
Moehringia macrophylla
2008 Keir Morse
Moehringia macrophylla
2016 Steve Matson

Mollugo verticillata    Green carpetweed,  Indian chickweed
non-native
Annual herb

MOLLUGINACEAE

Mollugo verticillata
2008 Keir Morse
Mollugo verticillata
2013 Michael Long
Mollugo verticillata
2004 Carol W. Witham

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
2019 Patricia Ashe
Monardella villosa
2019 Patrick Furtado
Monardella villosa
2007 Neal Kramer

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
native
Perennial herb

ERICACEAE

Moneses uniflora
2011 Louis-M. Landry
Moneses uniflora
2004 Dr. Amadej Trnkoczy
Moneses uniflora
2015 Dana York

Moneses uniflora var. reticulata    Oneflower wintergreen,  Single delight,  Woodnymph
native
Perennial herb

ERICACEAE

Moneses uniflora var. reticulata
2011 Louis-M. Landry
Moneses uniflora var. reticulata
2004 Dr. Amadej Trnkoczy
Moneses uniflora var. reticulata
2015 Dana York

Monotropa hypopithys    Pinesap
native
Perennial herb (mycoparasitic)

ERICACEAE

Monotropa hypopithys
2016 Wynn Anderson
Monotropa hypopithys
2010 Keir Morse
Monotropa hypopithys
2010 Sangeet Khalsa

Monotropa uniflora    Indian pipe,  Indianpipe
native
Perennial herb (mycoparasitic)

ERICACEAE

Monotropa uniflora
2005 George Rembert
Monotropa uniflora
2019 Matt C. Berger
Monotropa uniflora
2005 Louis-M. Landry

Montia diffusa    Diffuse miner's lettuce,  Spreading minerslettuce
native
Annual herb

MONTIACEAE

Montia diffusa
2005 Doreen L. Smith
Montia diffusa
2020 Alexandra Kookootsedes
Montia diffusa
2014 Vernon Smith

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

MONTIACEAE

Montia fontana
2008 Keir Morse
Montia fontana
2009 Keir Morse
Montia fontana
2009 Keir Morse

Montia howellii    Howell's minerslettuce,  Howell's montia
native
Annual herb

MONTIACEAE

Montia howellii
2004 Dean Wm. Taylor
Montia howellii
2009 Jennifer Wheeler, BLM Arcata Field Office
Montia howellii
2008 Sierra Pacific Industries

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

MONTIACEAE

Montia minor
2008 Keir Morse
Montia minor
2009 Keir Morse
Montia minor
2009 Keir Morse

Montia parvifolia    Littleleaf minerslettuce,  Showy rock montia
native
Perennial herb

MONTIACEAE

Montia parvifolia
2008 Keir Morse
Montia parvifolia
2008 Keir Morse
Montia parvifolia
2018 Adam Chasey

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

MONTIACEAE

Montia sibirica
2007 Aaron Schusteff
Montia sibirica
2008 Keir Morse
Montia sibirica
2019 Mary Conway

Muhlenbergia filiformis    Pullup muhly,  Slender muhly
native
Annual, Perennial grass

POACEAE

Muhlenbergia filiformis
2005 Steve Matson
Muhlenbergia filiformis
2001 Gary A. Monroe
Muhlenbergia filiformis
2020 Susan McDougall

Myosotis discolor    Changing forget me not,  yellow and blue forget-me-not
non-native
Annual herb

BORAGINACEAE

Myosotis discolor
2007 Neal Kramer
Myosotis discolor
2015 John Doyen
Myosotis discolor
2013 Ron Wolf

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
Shrub

MYRICACEAE

Myrica californica
2008 Neal Kramer
Myrica californica
2020 Susan McDougall
Myrica californica
2008 Keir Morse


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
2007 Neal Kramer

Nemophila menziesii    Baby blue eyes
native
Annual herb

BORAGINACEAE

Nemophila menziesii
2019 Matt Berger
Nemophila menziesii
2018 James Gonsman
Nemophila menziesii
2020 Mary Conway

Nemophila parviflora    Small flowered nemophila,  Smallflower nemophila
native
Annual herb

BORAGINACEAE

Nemophila parviflora
2008 Keir Morse
Nemophila parviflora
2015 Chris Wagner
Nemophila parviflora
2008 Keir Morse

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

BORAGINACEAE

Nemophila parviflora var. parviflora
2007 Neal Kramer
Nemophila parviflora var. parviflora
2008 Keir Morse

native
Tree, Shrub

FAGACEAE

Notholithocarpus densiflorus var. densiflorus
2007 Neal Kramer
Notholithocarpus densiflorus var. densiflorus
2020 Susan McDougall
Notholithocarpus densiflorus var. densiflorus
2020 Susan McDougall

native
Tree, Shrub

FAGACEAE

Notholithocarpus densiflorus var. echinoides
2013 Neal Kramer
Notholithocarpus densiflorus var. echinoides
2019 Susan McDougall
Notholithocarpus densiflorus var. echinoides
2007 Julie Kierstead Nelson

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 Stacie Wolny
Oemleria cerasiformis
2019 Peter Warner
Oemleria cerasiformis
2009 Dr. Mark S. Brunell

Oenanthe sarmentosa    Pacific oenanthe,  Water parsley
native
Perennial herb

APIACEAE

Oenanthe sarmentosa
2002 Brad Kelley
Oenanthe sarmentosa
2009 Dr. Mark S. Brunell
Oenanthe sarmentosa
2008 Keir Morse

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
native
Perennial herb

ONAGRACEAE

Oenothera wolfii
2001 Lindsay Herrera
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
2018 Ron Vanderhoff

Orobanche fasciculata    Clustered broomrape
native
Perennial herb (parasitic)

OROBANCHACEAE

Orobanche fasciculata
2016 Jim Xerogeanes
Orobanche fasciculata
2019 Doug Zimmerman
Orobanche fasciculata
2016 Yolanda Waddell

Orobanche uniflora    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora
2011 Gerald Carr
Orobanche uniflora
2020 Susan McDougall
Orobanche uniflora
2012 Gary A. Monroe

Orobanche uniflora var. purpurea    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora var. purpurea
2011 Gerald Carr
Orobanche uniflora var. purpurea
2020 Susan McDougall
Orobanche uniflora var. purpurea
2012 Gary A. Monroe

Orobanche uniflora var. sedii    Purple broomrape

Annual herb

OROBANCHACEAE

Orobanche uniflora var. sedii
2011 Gerald Carr
Orobanche uniflora var. sedii
2020 Susan McDougall
Orobanche uniflora var. sedii
2012 Gary A. Monroe

Osmorhiza berteroi    Sweet cicely
native
Perennial herb

APIACEAE

Osmorhiza berteroi
2019 Chico Hiking Association
Osmorhiza berteroi
2006 Steve Matson
Osmorhiza berteroi
2013 Chris Wagner

Osmorhiza occidentalis    Mountain sweet cicely,  Western sweet cicely,  Western sweetroot
native
Perennial herb

APIACEAE

Osmorhiza occidentalis
2008 Keir Morse
Osmorhiza occidentalis
2015 Barry Breckling
Osmorhiza occidentalis
2019 Chico Hiking Association

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
2010 Robert Steers/NPS
Oxalis albicans ssp. pilosa
2013 Robert Sikora
Oxalis albicans ssp. pilosa
2003 Bart and Susan Eisenberg

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

OXALIDACEAE

Oxalis corniculata
2008 Gary McDonald
Oxalis corniculata
2007 Dr. Amadej Trnkoczy
Oxalis corniculata
2011 Neal Kramer

Oxalis incarnata    Crimson woodsorrel
non-native
Perennial herb

OXALIDACEAE

Oxalis incarnata
2009 Neal Kramer
Oxalis incarnata
2010 Robert Steers/NPS

Oxalis oregana    Redwood sorrel
native
Perennial herb

OXALIDACEAE

Oxalis oregana
2019 Dean Wm. Taylor
Oxalis oregana
2020 Janice Kuch
Oxalis oregana
2018 Timothy Boomer

Oxalis suksdorfii    Suksdorf woodsorrel
native
Perennial herb

OXALIDACEAE

Oxalis suksdorfii
Barrett Jeffery
Oxalis suksdorfii
Barrett Jeffery
Oxalis suksdorfii
Barrett Jeffery

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
native
Perennial herb

ASTERACEAE

Packera bolanderi var. bolanderi
2009 Gerald Carr
Packera bolanderi var. bolanderi
2009 Gerald Carr
Packera bolanderi var. bolanderi
2009 Gerald Carr

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

POACEAE

Panicum acuminatum
2004 Laura Ann Eliassen
Panicum acuminatum
2009 Julie Kierstead Nelson
Panicum acuminatum
2001 Julie Kierstead Nelson

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

POACEAE

Panicum acuminatum var. acuminatum
2004 Laura Ann Eliassen
Panicum acuminatum var. acuminatum
2009 Julie Kierstead Nelson
Panicum acuminatum var. acuminatum
2001 Julie Kierstead Nelson

Panicum pacificum    Pacific panic grass
native
Perennial grass

POACEAE

Panicum pacificum
2013 Robert Steers/NPS
Panicum pacificum
2012 Ove Anderson
Panicum pacificum
2017 David popp

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

OROBANCHACEAE

Parentucellia viscosa
2018 Parker Santiago
Parentucellia viscosa
2019 Julie Kierstead Nelson
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
2015 Vernon Smith
Pectiantia ovalis
2012 Aaron Arthur
Pectiantia ovalis
2011 Zoya Akulova

Penstemon rattanii    Rattan's beardtongue
native
Perennial herb

PLANTAGINACEAE

Penstemon rattanii
2012 Gary A. Monroe
Penstemon rattanii
2013 Dana York
Penstemon rattanii
2012 Dylan Neubauer

Penstemon rattanii var. rattanii    Rattan's beardtongue
native
Perennial herb

PLANTAGINACEAE

Penstemon rattanii var. rattanii
2013 Dana York
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
2019 Ron Vanderhoff

Perideridia gairdneri    Gairdner's yampah,  Gardner's yampah
native
Perennial herb

APIACEAE

Perideridia gairdneri
2007 Neal Kramer
Perideridia gairdneri
2004 Bob Huettmann
Perideridia gairdneri
2013 Jake Ruygt

Perideridia kelloggii    Kellogg's yampah,  Yampah
native
Perennial herb

APIACEAE

Perideridia kelloggii
2007 Neal Kramer
Perideridia kelloggii
2007 Neal Kramer
Perideridia kelloggii
2020 David popp

Persicaria maculosa    Spotted ladysthumb
non-native
Annual herb

POLYGONACEAE

Persicaria maculosa
2008 Keir Morse
Persicaria maculosa
2017 Bob Stahmer
Persicaria maculosa
2008 Louis-M. Landry

Persicaria punctata    Dotted smartweed
native
Perennial herb

POLYGONACEAE

Persicaria punctata
2014 Neal Kramer
Persicaria punctata
2018 Ron Vanderhoff
Persicaria punctata
2018 Ron Vanderhoff

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
2011 Ron Wolf
Petasites frigidus var. palmatus
2020 Susan McDougall
Petasites frigidus var. palmatus
2006 Julie Kierstead Nelson

Petrorhagia dubia    Hairypink,  Pink grass,  Wilding pink
non-native
Annual herb

CARYOPHYLLACEAE

Petrorhagia dubia
(c) 2019 Joe Engelbrecht
Petrorhagia dubia
2018 Stephanie McKnight
Petrorhagia dubia
2005 Steve Matson

Phacelia bolanderi    Bolander's phacelia,  Redwood phacelia
native
Perennial herb

BORAGINACEAE

Phacelia bolanderi
2009 Zoya Akulova
Phacelia bolanderi
2017 Peter Warner
Phacelia bolanderi
2015 John Doyen

Phacelia heterophylla ssp. virgata    Varied leaf phacelia
native
Perennial herb

BORAGINACEAE

Phacelia heterophylla ssp. virgata
2019 Susan McDougall
Phacelia heterophylla ssp. virgata
2006 Steve Matson
Phacelia heterophylla ssp. virgata
2019 Susan McDougall

Phacelia nemoralis    Shade phacelia,  Woods phacelia
native
Perennial herb

BORAGINACEAE

Phacelia nemoralis
2012 Aaron Schusteff
Phacelia nemoralis
2014 Genevieve K. Walden
Phacelia nemoralis
1995 Saint Mary's College of California

Phacelia ramosissima    Branching phacelia
native
Perennial herb

BORAGINACEAE

Phacelia ramosissima
2011 Neal Kramer
Phacelia ramosissima
2011 Neal Kramer
Phacelia ramosissima
2020 Ron Vanderhoff

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

POACEAE

Phalaris aquatica
2019 James Bailey
Phalaris aquatica
2019 James Bailey
Phalaris aquatica
2017 James Bailey

Phalaris arundinacea    Reed canarygrass
native
Perennial grass

POACEAE

Phalaris arundinacea
2008 Keir Morse
Phalaris arundinacea
2009 Barry Rice
Phalaris arundinacea
2011 Ramona Robison

Phalaris californica    California canarygrass,  Canarygrass
native
Perennial grass

POACEAE

Phalaris californica
2010 Robert Steers/NPS
Phalaris californica
2010 Zoya Akulova
Phalaris californica
2009 Zoya Akulova

Phalaris minor    Little seed canarygrass,  Littleseed canarygrass,  Mediterranean canarygrass
non-native
Annual grass

POACEAE

Phalaris minor
2006 James M. Andre
Phalaris minor
2014 Steve Matson
Phalaris minor
2020 Diane Etchison

Phalaris paradoxa    Hood canarygrass
non-native
Annual grass

POACEAE

Phalaris paradoxa
2004 Carol W. Witham
Phalaris paradoxa
2007 Luigi Rignanese
Phalaris paradoxa
2007 Luigi Rignanese

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

POACEAE

Phalaris tuberosa
2019 James Bailey
Phalaris tuberosa
2019 James Bailey
Phalaris tuberosa
2017 James Bailey

Philadelphus californicus    Lewis' mock orange,  Mock orange,  Wild mock orange
native
Shrub

HYDRANGEACEAE

Philadelphus californicus
2003 Christopher L. Christie
Philadelphus californicus
2008 Keir Morse
Philadelphus californicus
2018 Chico Hiking Association

Philadelphus lewisii    Lewis' mock orange,  Mock orange,  Wild mock orange
native
Shrub

HYDRANGEACEAE

Philadelphus lewisii
2003 Christopher L. Christie
Philadelphus lewisii
2008 Keir Morse
Philadelphus lewisii
2018 Chico Hiking Association

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
2020 Julie A. Kierstead
Phlox speciosa
2020 Julie A. Kierstead
Phlox speciosa
2015 John Doyen

Phoradendron villosum    Mistletoe
native
Shrub (parasitic)

VISCACEAE

Phoradendron villosum
2013 Jorg & Mimi Fleige
Phoradendron villosum
2018 Susan McDougal
Phoradendron villosum
2019 Ron Vanderhoff

Physocarpus capitatus    Ninebark,  Pacific ninebark,  Western ninebark
native
Shrub

ROSACEAE

Physocarpus capitatus
2018 Stacie Wolny
Physocarpus capitatus
2019 Julie Kierstead Nelson
Physocarpus capitatus
2008 Keir Morse

Picea sitchensis    Sitka spruce
native
Tree

PINACEAE

Picea sitchensis
2018 Richard Spjut
Picea sitchensis
2016 Steve Matson
Picea sitchensis
2016 Steve Matson

Pinus attenuata    Knobcone pine,  Scrub pine
native
Tree

PINACEAE

Pinus attenuata
2020 Diane Etchison
Pinus attenuata
2018 Hayley Ross
Pinus attenuata
2019 Susan McDougall

Pinus contorta    Beach pine,  Lodgepole pine
native
Tree

PINACEAE

Pinus contorta
2019 Jay Chamberlain
Pinus contorta
2019 Greg Kareofelas
Pinus contorta
2019 Jay Chamberlain

Pinus halepensis    Aleppo pine
non-native
Tree

PINACEAE

Pinus halepensis
2006 Dr. Amadej Trnkoczy
Pinus halepensis
2018 Ron Vanderhoff
Pinus halepensis
2010 Michael O'Brien

Pinus jeffreyi    Jeffrey pine
native
Tree

PINACEAE

Pinus jeffreyi
2019 Susan McDougall
Pinus jeffreyi
2009 Ryan Gilmore
Pinus jeffreyi
2019 Susan McDougall

Pinus lambertiana    Sugar pine
native
Tree

PINACEAE

Pinus lambertiana
2008 Keir Morse
Pinus lambertiana
2020 Susan McDougall
Pinus lambertiana
2020 Susan McDougall

Pinus patula    Mexican weeping pine
non-native
Tree

PINACEAE


Pinus radiata    Monterey pine
native
Tree

PINACEAE

Pinus radiata
2013 Susan McDougall
Pinus radiata
2008 Neal Kramer
Pinus radiata
2019 Susan McDougall

Piperia elegans    Coast piperia,  Elegant piperia,  Elegant rein orchid
native
Perennial herb

ORCHIDACEAE

Piperia elegans
2019 Mary Conway
Piperia elegans
2019 John Rawlings
Piperia elegans
2018 Alexandra Kookootsedes

Piperia elegans ssp. elegans    Elegant piperia
native
Perennial herb

ORCHIDACEAE

Piperia elegans ssp. elegans
2018 Saskia Raether
Piperia elegans ssp. elegans
2017 Nicole Mercier
Piperia elegans ssp. elegans
2011 Chris Winchell

Pityopus californica    California pinefoot,  Pityopus
native
Perennial herb (mycoparasitic)

ERICACEAE

Pityopus californica
2010 Sean B. Smith

native
Perennial herb (mycoparasitic)

ERICACEAE

Pityopus californicus
2015 Debra L. Cook
Pityopus californicus
1981 Robert E. Preston, Ph.D.
Pityopus californicus
2009 Barry Rice

Pityrogramma triangularis    Gold back fern
native
Fern

PTERIDACEAE

Pityrogramma triangularis
2019 Ron Vanderhoff
Pityrogramma triangularis
2008 Keir Morse
Pityrogramma triangularis
2019 Ron Vanderhoff

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

BORAGINACEAE

Plagiobothrys nothofulvus
2019 Ron Vanderhoff
Plagiobothrys nothofulvus
2019 Diane Etchison
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
2010 Gary A. Monroe
Plantago bigelovii ssp. bigelovii
2019 Ron Vanderhoff
Plantago bigelovii ssp. bigelovii
2015 Keir Morse

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

PLANTAGINACEAE

Plantago coronopus
2008 Jorg Fleige
Plantago coronopus
2003 George W. Hartwell
Plantago coronopus
2017 MCOSD Restoration Crew

Plantago elongata    Annual coast plantago,  Coastal plantain,  Long leaf plantain
native
Annual herb

PLANTAGINACEAE

Plantago elongata
2010 Gary A. Monroe
Plantago elongata
2019 Ron Vanderhoff
Plantago elongata
2015 Keir Morse

Plantago hirtella var. galeottiana    Mexican plantain,  Naked plantain,  Tall coastal plantain
native
Perennial herb

PLANTAGINACEAE

Plantago hirtella var. galeottiana
2008 Neal Kramer
Plantago hirtella var. galeottiana
2010 Neal Kramer
Plantago hirtella var. galeottiana
2010 Margo Bors

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

PLANTAGINACEAE

Plantago lanceolata
2017 Gary McDonald
Plantago lanceolata
2007 Neal Kramer
Plantago lanceolata
2019 Diane Etchison

Plantago major    Common plantain
non-native
Perennial herb

PLANTAGINACEAE

Plantago major
2009 Barry Breckling
Plantago major
2013 Debra L. Cook
Plantago major
2015 Zoya Akulova

Plantago maritima    Alkali plantain,  Goose tongue,  Maritime plantain
native
Perennial herb

PLANTAGINACEAE

Plantago maritima
2002 Margo Bors
Plantago maritima
2014 Zoya Akulova
Plantago maritima
2009 Neal Kramer

Plantago subnuda    Mexican plantain,  Naked plantain,  Tall coastal plantain
native
Perennial herb

PLANTAGINACEAE

Plantago subnuda
2008 Neal Kramer
Plantago subnuda
2010 Neal Kramer
Plantago subnuda
2010 Margo Bors

Plectritis congesta    Sea blush,  Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta
2015 Aaron Schusteff
Plectritis congesta
2011 Ryan Batten
Plectritis congesta
2007 Matt Below

Plectritis congesta ssp. brachystemon    Shortspur seablush
native
Annual herb

VALERIANACEAE

Plectritis congesta ssp. brachystemon
2011 Jorg & Mimi Fleige
Plectritis congesta ssp. brachystemon
2013 Al Keuter
Plectritis congesta ssp. brachystemon
2005 Steve Matson

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

VALERIANACEAE

Plectritis macrocera
2019 Gary McDonald
Plectritis macrocera
2019 Gary McDonald
Plectritis macrocera
2019 Gary McDonald

Pleuricospora fimbriolata    Fringed pinesap
native
Perennial herb (mycoparasitic)

ERICACEAE

Pleuricospora fimbriolata
2020 Chico Hiking Association
Pleuricospora fimbriolata
2015 David popp
Pleuricospora fimbriolata
2005 Brent Miller

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