logo Calflora Illustrated Plant List 

Cal-IPC Pending Assessment List

This list contains plants that are not yet listed on Cal-IPC's Inventory but have been reported spreading in California wildlands. Please add locations to Calflora and send information to Jutta Burger, jburger@cal-ipc.org
333 PLANTS
Aeonium spp.   


Watsonia borbonica   


Dipsacus laciniatus   


Passiflora tripartita   


Nardus stricta   


Erica caniculata   


Rubus laciatus   


Heracleum mantegazzianum   


Zoysia spp   


Chamaecytisus palmensis   


Mercurialis ambigua   


Ensenbeckia flava   


Roldana petasites   


Ceratophyllum submersum   


Alyssum murale   


Acacia baileyana    Bailey acacia,  Cootamundra wattle
invasive non-native
Tree, Shrub

FABACEAE

Acacia baileyana
2002 Dean Wm. Taylor
Acacia baileyana
2016 Zoya Akulova
Acacia baileyana
2012 Jorg & Mimi Fleige

Acacia cyclops    Coastal wattle,  Cyclops acacia
invasive non-native
Shrub

FABACEAE

Acacia cyclops
2018 Ron Vanderhoff
Acacia cyclops
2017 Ron Vanderhoff
Acacia cyclops
© 2015 Ron Vanderhoff

Acacia elata    Cedar wattle
non-native
Tree

FABACEAE


Acacia longifolia    Sydney golden wattle
non-native
Tree

FABACEAE

Acacia longifolia
2017 MCOSD EDRR
Acacia longifolia
2019 Patrick Furtado
Acacia longifolia
2019 Patrick Furtado

Acacia paradoxa    Kangaroo thorn
invasive non-native
Shrub

FABACEAE

Acacia paradoxa
2011 Eric Wrubel
Acacia paradoxa
2011 Eric Wrubel
Acacia paradoxa
2001 CDFA

Acacia pycnantha    Golden wattle
invasive non-native
Tree, Shrub

FABACEAE

Acacia pycnantha
2005 Ken Harris
Acacia pycnantha
2016 Barbara Boethling
Acacia pycnantha
2017 Ron Vanderhoff

Acacia redolens    Bank catclaw
non-native
Tree, Shrub

FABACEAE

Acacia redolens
© 2017 Ron Vanderhoff
Acacia redolens
2018 michelle peruzzi
Acacia redolens
2017 Ron Vanderhoff

Acaena novae-zelandiae    Biddy biddy
invasive non-native
Shrub (stem succulent)

ROSACEAE

Acaena novae-zelandiae
2001 CDFA
Acaena novae-zelandiae
2018 Hayley Ross
Acaena novae-zelandiae
2018 Hayley Ross

Aegilops cylindrica    Jointed goat grass,  Jointed goatgrass
invasive non-native
Annual grass

POACEAE

Aegilops cylindrica
2001 CDFA
Aegilops cylindrica
2001 CDFA
Aegilops cylindrica
2019 Julian Geoghegan

Aeschynomene rudis    Red aeschynomene,  Zigzag jointvetch
invasive non-native
Annual, Perennial herb

FABACEAE

Aeschynomene rudis
2001 CDFA
Aeschynomene rudis
2001 CDFA
Aeschynomene rudis
2001 CDFA

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 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

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

Albizia lophantha    Albizia,  Plume acacia,  Stink bean
invasive non-native
Tree, Shrub

FABACEAE

Albizia lophantha
2002 Dean Wm. Taylor
Albizia lophantha
2008 Neal Kramer
Albizia lophantha
2018 Nicole Leatherman

Alliaria petiolata    Garlic mustard
non-native
Annual, Biennial herb

BRASSICACEAE

Alliaria petiolata
2007 François Meignant
Alliaria petiolata
2008 Dr. Amadej Trnkoczy

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

Alopecurus pratensis    Meadow foxtail
invasive non-native
Perennial grass

POACEAE

Alopecurus pratensis
2007 Louis-M. Landry
Alopecurus pratensis
2007 Louis-M. Landry
Alopecurus pratensis
2008 Keir Morse

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

AMARANTHACEAE

Amaranthus retroflexus
2007 Neal Kramer
Amaranthus retroflexus
2007 Neal Kramer
Amaranthus retroflexus
2008 Louis-M. Landry

Ambrosia trifida    Giant ragweed
invasive non-native
Annual herb

ASTERACEAE

Ambrosia trifida
2015 Richard Spellenberg
Ambrosia trifida
2008 Louis-M. Landry
Ambrosia trifida
2010 Jean Pawek

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

Anthriscus caucalis    Bur chervil,  Bur chevril
non-native
Annual herb, Vine

APIACEAE

Anthriscus caucalis
2017 Diane Etchison
Anthriscus caucalis
2003 Michael Charters
Anthriscus caucalis
2020 Jennifer Mo

Aponogeton distachyos    Cape pondweed
non-native
Perennial herb

APONOGETONACEAE

Aponogeton distachyos
2004 Vince Scheidt
Aponogeton distachyos
2004 Vince Scheidt

Aptenia cordifolia    Baby sun rose,  Dew plant
non-native
Perennial herb

AIZOACEAE

Aptenia cordifolia
2007 Louis-M. Landry
Aptenia cordifolia
2005 Luigi Rignanese
Aptenia cordifolia
2001 Tony Morosco

Araujia sericifera    Bladderflower
invasive non-native
Perennial herb, Vine

APOCYNACEAE

Araujia sericifera
2019 Ron Vanderhoff
Araujia sericifera
2017 Ron Vanderhoff
Araujia sericifera
2017 Ron Vanderhoff

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

Arum italicum    Italian lords and ladies
non-native
Perennial herb

ARACEAE

Arum italicum
2019 Joerg Lohse
Arum italicum
2015 Dr. Amadej Trnkoczy
Arum italicum
2019 Joerg Lohse

Ascophyllum nodosum    Yellow tang
non-native
seaweed

FUCACEAE

Ascophyllum nodosum
2011 Phil Pullen

Atriplex amnicola    Swamp saltbush
non-native
Annual herb

CHENOPODIACEAE

Atriplex amnicola
2018 Ron Vanderhoff
Atriplex amnicola
2016 Ron Vanderhoff
Atriplex amnicola
2016 Barbara Boethling

Bacopa rotundifolia    Disk waterhyssop,  Round leaf water hyssop
non-native
Annual, Perennial herb

PLANTAGINACEAE

Bacopa rotundifolia
2007 John Game
Bacopa rotundifolia
2007 John Game
Bacopa rotundifolia
2007 John Game

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 darwinii    Darwin's berberis
invasive non-native
Shrub

BERBERIDACEAE

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

Berteroa incana    Hoary alyssum
invasive non-native
Annual herb

BRASSICACEAE

Berteroa incana
2008 Louis-M. Landry
Berteroa incana
2008 Louis-M. Landry
Berteroa incana
2008 Louis-M. Landry

Bituminaria bituminosa    Arabian pea
non-native
Perennial herb

FABACEAE

Bituminaria bituminosa
2005 Luigi Rignanese
Bituminaria bituminosa
2006 Luigi Rignanese
Bituminaria bituminosa
2006 Luigi Rignanese

Brassica oleracea    Cabbage
non-native
Annual herb

BRASSICACEAE

Brassica oleracea
2011 Vernon Smith
Brassica oleracea
2005 Louis-M. Landry
Brassica oleracea
2008 Louis-M. Landry

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

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

Cabomba caroliniana    Carolina fanwort
non-native
Perennial herb

CABOMBACEAE

Cabomba caroliniana
2010 Gerald Carr
Cabomba caroliniana
2010 Gerald Carr
Cabomba caroliniana
2010 Gerald Carr

Calamintha sylvatica    Woodland calamint
non-native
Perennial herb

LAMIACEAE

Calamintha sylvatica
2017 Adam Chasey (ssp. ascendens)
Calamintha sylvatica
2017 Adam Chasey (ssp. ascendens)

Calendula arvensis    Field marigold
non-native
Annual herb

ASTERACEAE

Calendula arvensis
2018 David Wolfson
Calendula arvensis
2018 David Wolfson
Calendula arvensis
2019 Stephany Dery

Carex pendula    Hanging sedge
invasive non-native
Perennial grasslike herb

CYPERACEAE

Carex pendula
2009 Dean Wm. Taylor, Ph.D.
Carex pendula
2011 Mike Perlmutter
Carex pendula
2017 Ecological Concerns Inc

Carrichtera annua    Wards weed
invasive non-native
Annual herb

BRASSICACEAE

Carrichtera annua
2018 Unknown (Calflora) with Joe DiTomaso
Carrichtera annua
2017 Jason Giessow
Carrichtera annua
2018 Jason Giessow

Casuarina equisetifolia    Australian Pine,  Beach sheoak
invasive non-native
Tree

CASUARINACEAE

Casuarina equisetifolia
2010 Aaron Arthur
Casuarina equisetifolia
2010 Aaron Arthur
Casuarina equisetifolia
2015 Zoya Akulova

Catalpa bignonioides    Southern catalpa
non-native
Tree

BIGNONIACEAE

Catalpa bignonioides
2012 Al Keuter
Catalpa bignonioides
2009 Luigi Rignanese
Catalpa bignonioides
2009 Luigi Rignanese

Catharanthus roseus    Madagascar periwinkle
invasive non-native
Shrub (stem succulent)

APOCYNACEAE

Catharanthus roseus
2005 Luigi Rignanese
Catharanthus roseus
2010 John White
Catharanthus roseus
2005 Luigi Rignanese

Centaurea iberica    Iberian knapweed
invasive non-native
Perennial herb

ASTERACEAE

Centaurea iberica
2001 CDFA
Centaurea iberica
2001 CDFA
Centaurea iberica
2001 CDFA

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

Cestrum parqui    Chilean jessamine
invasive non-native
Tree

SOLANACEAE

Cestrum parqui
2011 Eric Wrubel
Cestrum parqui
2007 Zoya Akulova
Cestrum parqui
2011 Eric Wrubel/NPS

Chasmanthe floribunda    African cornflag,  Chasmanthe
invasive non-native
Perennial herb

IRIDACEAE

Chasmanthe floribunda
2013 Robert Sikora
Chasmanthe floribunda
2011 Michael O'Brien
Chasmanthe floribunda
2017 Ron Vanderhoff

Chorispora tenella    Crossflower
invasive non-native
Annual herb

BRASSICACEAE

Chorispora tenella
2008 Gary A. Monroe
Chorispora tenella
2015 Debra L. Cook
Chorispora tenella
2008 Gary A. Monroe

non-native

ASTERACEAE

Chrysanthemoides monilifera
2013 Ron Vanderhoff
Chrysanthemoides monilifera
2013 Ron Vanderhoff
Chrysanthemoides monilifera
2013 Ron Vanderhoff

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

Cirsium ochrocentrum    Beaumont thistle,  Yellow spined thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium ochrocentrum
2004 Robert Sivinski
Cirsium ochrocentrum
2001 CDFA

Cirsium undulatum    Wavy leaved thistle,  Wavyleaf thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium undulatum
2015 Richard Spellenberg
Cirsium undulatum
2010 Lee Dittmann
Cirsium undulatum
2010 Lee Dittmann

Cistus ladanifer    Gum rockrose,  Resinous rockrose
invasive non-native
Shrub (stem succulent)

CISTACEAE

Cistus ladanifer
2004 Michael Charters
Cistus ladanifer
2005 Dr. Antonio Martinez
Cistus ladanifer
2004 Michael Charters

Clematis vitalba    Old man's beard,  Traveller's joy
invasive non-native
Vine

RANUNCULACEAE

Clematis vitalba
2006 Dr. Amadej Trnkoczy
Clematis vitalba
2006 Dr. Amadej Trnkoczy
Clematis vitalba
2015 Ellen Uhler

Clinopodium vulgare    Wild basil
non-native
Perennial herb

LAMIACEAE

Clinopodium vulgare
2010 Louis-M. Landry
Clinopodium vulgare
2016 Keir Morse
Clinopodium vulgare
2016 Keir Morse

Colocasia esculenta    Taro root
invasive non-native
Perennial herb

ARACEAE

Colocasia esculenta
Strauss © 2004 California Academy of Sciences
Colocasia esculenta
2009 Moorea Biocode
Colocasia esculenta
2018 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

Coprosma repens    Creeping mirrorplant
non-native
Shrub

RUBIACEAE

Coprosma repens
2011 Dean Wm. Taylor, Ph.D.
Coprosma repens
2015 Richard Chasey
Coprosma repens
2017 Zoya Akulova

Coreopsis lanceolata    Garden coreopsis,  Lanceleaf tickseed
non-native
Perennial herb

ASTERACEAE

Coreopsis lanceolata
2013 Richard Spellenberg
Coreopsis lanceolata
2013 Richard Spellenberg
Coreopsis lanceolata
2013 Richard Spellenberg

Coronilla valentina ssp. glauca    Mediterranean crownvetch
non-native
Shrub

FABACEAE


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

crepis pulchra    Smallflower hawksbeard
non-native
Perennial herb

ASTERACEAE


Cupaniopsis anacardioides    Carrotwood
non-native
Tree

SAPINDACEAE

Cupaniopsis anacardioides
2018 Andy Jones
Cupaniopsis anacardioides
2018 Ron Vanderhoff
Cupaniopsis anacardioides
2010 Michael O'Brien

Cuscuta japonica    Japanese dodder
invasive non-native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta japonica
2009 Barry Rice
Cuscuta japonica
2009 Barry Rice
Cuscuta japonica
2006 No copyright; distribute and reproduce freely

Cyperus papyrus    Papyrus
non-native
Perennial grasslike herb

CYPERACEAE

Cyperus papyrus
2006 Joseph Dougherty/ecology.org
Cyperus papyrus
2018 Ron Vanderhoff
Cyperus papyrus
2018 Ron Vanderhoff

Cyperus rotundus    Nutgrass
invasive non-native
Perennial grasslike herb

CYPERACEAE

Cyperus rotundus
2016 Ron Vanderhoff
Cyperus rotundus
2019 Ron Vanderhoff
Cyperus rotundus
2018 Ron Vanderhoff

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

Datura inoxia    Pricklyburr
invasive non-native
Perennial herb

SOLANACEAE

Datura inoxia
Nick Kurzenko
Datura inoxia
2005 Louis-M. Landry
Datura inoxia
2007 Louis-M. Landry

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

Descurainia pinnata    Western tansy mustard,  Western tansymustard,  Yellow tansy mustard
native
Annual herb

BRASSICACEAE

Descurainia pinnata
2019 Diane Etchison
Descurainia pinnata
2019 Matt Berger
Descurainia pinnata
2019 Matt Berger

Osteospermum ecklonis    Blue & white daisybush
non-native
Perennial herb

ASTERACEAE

Osteospermum ecklonis
2009 Neal Kramer
Osteospermum ecklonis
2018 David Wolfson
Osteospermum ecklonis
2012 Richard Spellenberg

Osteospermum fruticosum    Trailing african daisy
non-native
Perennial herb

ASTERACEAE

Osteospermum fruticosum
2018 Ron Vanderhoff
Osteospermum fruticosum
2018 Ron Vanderhoff
Osteospermum fruticosum
2018 Ron Vanderhoff

Dimorphotheca sinuata    African daisy,  Cape marigold,  Glandular cape marigold
invasive non-native
Annual herb

ASTERACEAE

Dimorphotheca sinuata
1973 Dean Wm. Taylor
Dimorphotheca sinuata
2000 Joe DiTomaso
Dimorphotheca sinuata
2000 Joe DiTomaso

Diospyros lotus    Date plum
non-native
Tree

EBENACEAE


Dipogon lignosus    Okie bean
invasive non-native
Perennial herb, Vine

FABACEAE

Dipogon lignosus
2018 Zoya Akulova
Dipogon lignosus
2020 Ron Vanderhoff
Dipogon lignosus
2020 Ron Vanderhoff

Dittrichia viscosa    False yellowhead
invasive non-native
Perennial herb

ASTERACEAE

Dittrichia viscosa
2014 Zoya Akulova
Dittrichia viscosa
2005 Luigi Rignanese
Dittrichia viscosa
2014 Zoya Akulova

Echium pininana    Pine echium
non-native
Shrub

BORAGINACEAE

Echium pininana
2015 Neal Kramer
Echium pininana
2013 Zoya Akulova
Echium pininana
2019 Patrick Furtado

Echium plantagineum    Salvation echium,  Salvation jane,  Viper's bugloss
invasive non-native
Annual, Perennial herb

BORAGINACEAE

Echium plantagineum
2005 Luigi Rignanese
Echium plantagineum
2006 Luigi Rignanese

Elytrigia intermedia    Intermediate wheatgrass
non-native
Perennial grass

POACEAE

Elytrigia intermedia
2004 Steve Matson
Elytrigia intermedia
2016 Neal Kramer
Elytrigia intermedia
2016 Neal Kramer

Elytrigia elongata    Tall wheat grass
non-native
Perennial grass

POACEAE

Elytrigia elongata
2009 Zoya Akulova
Elytrigia elongata
2011 Neal Kramer
Elytrigia elongata
2017 jessica bailey

Agropyron elongatum    Tall wheat grass
non-native
Perennial grass

POACEAE

Agropyron elongatum
2009 Zoya Akulova
Agropyron elongatum
2011 Neal Kramer
Agropyron elongatum
2017 jessica bailey

Elymus repens    Quack grass
non-native
Perennial grass

POACEAE

Elymus repens
2005 Louis-M. Landry
Elymus repens
2005 Louis-M. Landry
Elymus repens
2008 Keir Morse

Emex spinosa    Devil's thorn,  Spiny threecornerjack
invasive non-native
Annual herb

POLYGONACEAE

Emex spinosa
2017 Barbara Boethling
Emex spinosa
2015 Ron Vanderhoff
Emex spinosa
2016 Barbara Boethling

Enchylaena tomentosa    Ruby saltbush
non-native
Annual herb

CHENOPODIACEAE

Enchylaena tomentosa
Eugene Sturla
Enchylaena tomentosa
2015 Eugene Sturla
Enchylaena tomentosa
Eugene Sturla

Eragrostis curvula    Weeping lovegrass
non-native
Perennial grass

POACEAE

Eragrostis curvula
2015 pamela beitz

Conyza bonariensis    Flax-leaved horseweed
non-native
Annual herb

ASTERACEAE

Conyza bonariensis
2007 Luigi Rignanese
Conyza bonariensis
2008 Jorg Fleige
Conyza bonariensis
2009 Neal Kramer

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

ASTERACEAE

Erigeron karvinskianus
2009 Neal Kramer
Erigeron karvinskianus
2009 Neal Kramer
Erigeron karvinskianus
2018 Brian Charles

Conyza floribunda    Tropical horseweed
non-native
Annual herb

ASTERACEAE

Conyza floribunda
2006 Michael Charters
Conyza floribunda
2018 Ron Vanderhoff
Conyza floribunda
2006 Michael Charters

Eriobotrya japonica    Loquat
non-native
Tree

ROSACEAE

Eriobotrya japonica
2015 Garth Wadsworth
Eriobotrya japonica
2005 Luigi Rignanese
Eriobotrya japonica
2015 Zoya Akulova

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 brachycarpum    Foothill filaree,  Short fruited filaree,  Shortfruit stork's bill
invasive non-native
Annual herb

GERANIACEAE

Erodium brachycarpum
2018 James Bailey
Erodium brachycarpum
2018 John Doyen
Erodium brachycarpum
2016 John Doyen

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

GERANIACEAE

Erodium moschatum
2012 Neal Kramer
Erodium moschatum
2018 Ron Vanderhoff
Erodium moschatum
2007 Luigi Rignanese

Eucalyptus cladocalyx    Sugar gum,  Sugargum
invasive non-native
Tree

MYRTACEAE

Eucalyptus cladocalyx
2010 Michael O'Brien
Eucalyptus cladocalyx
2011 Michael O'Brien
Eucalyptus cladocalyx
2011 Michael O'Brien

Eucalyptus conferruminata    Spider gum, bushy yate
non-native
Tree

MYRTACEAE

Eucalyptus conferruminata
2006 Steve Matson
Eucalyptus conferruminata
2006 Steve Matson
Eucalyptus conferruminata
2006 Steve Matson

Euphorbia dendroides    Tree spurge
non-native
Shrub

EUPHORBIACEAE

Euphorbia dendroides
2016 Dr. Amadej Trnkoczy
Euphorbia dendroides
2004 Krzysztof Kozminski
Euphorbia dendroides
2016 Dr. Amadej Trnkoczy

Euphorbia exigua    Dwarf spurge
non-native
Perennial herb

EUPHORBIACEAE

Euphorbia exigua
2015 Peter Warner
Euphorbia exigua
2015 Peter Warner
Euphorbia exigua
2015 Peter Warner

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

Euphorbia myrsinites    Myrtle spurge
non-native
Biennial, Perennial herb

EUPHORBIACEAE

Euphorbia myrsinites
2007 Louis-M. Landry
Euphorbia myrsinites
2018 Tom Getts
Euphorbia myrsinites
2007 Louis-M. Landry

Polygonum aubertii    Bukhara fleeceflower
non-native
Vine

POLYGONACEAE

Polygonum aubertii
2014 Michael Chasse
Polygonum aubertii
2016 Michael Chasse
Polygonum aubertii
2016 Michael Chasse

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

Vulpia bromoides    Brome fescue
non-native
Annual grass

POACEAE

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

Festuca pratensis    Meadow fescue
non-native
Perennial grass

POACEAE

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

Fraxinus uhdei    Shamel ash
invasive non-native
Tree

OLEACEAE

Fraxinus uhdei
2010 Michael O'Brien
Fraxinus uhdei
2018 Ron Vanderhoff
Fraxinus uhdei
2018 Ron Vanderhoff

Fuchsia magellanica    Hardy fuchsia
non-native
Shrub

ONAGRACEAE

Fuchsia magellanica
2008 Neal Kramer
Fuchsia magellanica
2000 Joseph Dougherty/ecology.org
Fuchsia magellanica
2008 Neal Kramer

Fumaria capreolata    White ramping fumitory
non-native
Perennial herb

PAPAVERACEAE

Fumaria capreolata
2014 Barry Breckling
Fumaria capreolata
2020 Eric Wrubel
Fumaria capreolata
2009 Neal Kramer

Fumaria officinalis    Drug fumitory
invasive non-native
Annual herb

PAPAVERACEAE

Fumaria officinalis
2010 Denise Kocek
Fumaria officinalis
2007 Luigi Rignanese
Fumaria officinalis
2005 Luigi Rignanese

Galega officinalis    Professor-weed
invasive non-native
Perennial herb

FABACEAE

Galega officinalis
2017 Gerald Carr
Galega officinalis
2017 Gerald Carr
Galega officinalis
2017 Gerald Carr

Genista linifolia    Mediterranean broom
invasive non-native
Shrub

FABACEAE

Genista linifolia
2018 Joe DiTomaso
Genista linifolia
2018 Joe DiTomaso
Genista linifolia
2017 B.J. Dion

Geranium core-core    Alderney crane's-bill
non-native
Perennial herb

GERANIACEAE

Geranium core-core
2015 Vernon Smith
Geranium core-core
2007 Doreen L. Smith
Geranium core-core
2011 Jorg & MImi Fleige

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 purpureum    Herb robert
invasive non-native
Annual, Biennial herb

GERANIACEAE

Geranium purpureum
2020 Jennifer Mo
Geranium purpureum
2008 Neal Kramer
Geranium purpureum
2019 Cynthia Powell

Geranium retrorsum    New zealand geranium
invasive non-native
Perennial herb

GERANIACEAE

Geranium retrorsum
2012 Gary A. Monroe
Geranium retrorsum
2012 Gary A. Monroe
Geranium retrorsum
2012 Gary A. Monroe

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

Glebionis segetum    Corndaisy
non-native
Annual herb

ASTERACEAE

Glebionis segetum
2007 Luigi Rignanese
Glebionis segetum
2015 John Doyen
Glebionis segetum
2007 Luigi Rignanese

Chrysanthemum segetum    Corndaisy
non-native
Annual herb

ASTERACEAE

Chrysanthemum segetum
2007 Luigi Rignanese
Chrysanthemum segetum
2015 John Doyen
Chrysanthemum segetum
2007 Luigi Rignanese

Gleditsia triacanthos    Honeylocust
invasive non-native
Tree, Shrub

FABACEAE

Gleditsia triacanthos
2005 Louis-M. Landry
Gleditsia triacanthos
2010 Jean Pawek

Glycyrrhiza glabra    Cultivated licorice
non-native
Perennial herb

FABACEAE

Glycyrrhiza glabra
© 2016 Chris Wagner
Glycyrrhiza glabra
2016 Chris Wagner
Glycyrrhiza glabra
2016 Chris Wagner

Grevillea robusta    Silkoak
invasive non-native
Tree

PROTEACEAE

Grevillea robusta
2009 Neal Kramer
Grevillea robusta
2018 Zoya Akulova
Grevillea robusta
2015 Zoya Akulova

Grevillea rosmarinifolia    rosemary grevillea,  spider flower
non-native
Shrub

PROTEACEAE

Grevillea rosmarinifolia
2009 Neal Kramer
Grevillea rosmarinifolia
2009 Neal Kramer
Grevillea rosmarinifolia
2009 Neal Kramer

Grindelia squarrosa    Curlycup gumweed
non-native
Perennial herb

ASTERACEAE

Grindelia squarrosa
2001 Larry Blakely
Grindelia squarrosa
2001 Larry Blakely
Grindelia squarrosa
2012 Zoya Akulova

Gunnera tinctoria    Chilean gunnera
invasive non-native
Perennial herb (aquatic)

GUNNERACEAE

Gunnera tinctoria
2013 Richard Spellenberg
Gunnera tinctoria
2010 Zoya Akulova
Gunnera tinctoria
2013 Richard Spellenberg

Gypsophila paniculata    Baby's breath
invasive non-native
Perennial herb

CARYOPHYLLACEAE

Gypsophila paniculata
2010 Barry Breckling
Gypsophila paniculata
2015 Barry Breckling
Gypsophila paniculata
2010 Barry Breckling

Halimodendron halodendron    Common salttree,  Russian salt tree
invasive non-native
Shrub

FABACEAE

Halimodendron halodendron
2001 CDFA
Halimodendron halodendron
2001 CDFA
Halimodendron halodendron
2001 CDFA

Hedera hibernica    Atlantic ivy
non-native
Vine

ARALIACEAE


Hedypnois cretica    Cretanweed,  Crete weed,  Hedypnois
non-native
Annual herb

ASTERACEAE

Hedypnois cretica
2003 Michael Charters
Hedypnois cretica
2008 Neal Kramer
Hedypnois cretica
2007 Luigi Rignanese

Helianthus tuberosus    Jerusalem artichoke
invasive non-native
Perennial herb

ASTERACEAE

Helianthus tuberosus
2011 Nick Kurzenko
Helianthus tuberosus
2019 Jennifer Mo
Helianthus tuberosus
2019 Jennifer Mo

Heliotropium amplexicaule    Clasping heliotrope
invasive non-native
Perennial herb

BORAGINACEAE

Heliotropium amplexicaule
2009 Thomas Stoughton
Heliotropium amplexicaule
2020 Henry Inman
Heliotropium amplexicaule
2018 George Williams

Heliotropium supinum    Dwarf heliotrope
non-native
Annual herb

BORAGINACEAE


Hibiscus trionum    Flower of an hour
non-native
Annual herb

MALVACEAE

Hibiscus trionum
2015 Charles Russell
Hibiscus trionum
2004 Dr. Amadej Trnkoczy
Hibiscus trionum
2004 Dr. Amadej Trnkoczy

Hydrocharis morsus-ranae    Common frogbit
non-native
Perennial herb

HYDROCHARITACEAE

Hydrocharis morsus-ranae
2006 Louis-M. Landry

Hyparrhenia hirta    Thatching grass
invasive non-native
Perennial grass

POACEAE

Hyparrhenia hirta
2008 Steve Matson
Hyparrhenia hirta
2008 Steve Matson

Hypericum androsaemum    Sweet amber
invasive non-native
Shrub

HYPERICACEAE

Hypericum androsaemum
2019 Jon Thompson
Hypericum androsaemum
2019 Jon Thompson
Hypericum androsaemum
2018 Zoya Akulova

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 grandifolium    malfurada
invasive non-native
Shrub

HYPERICACEAE

Hypericum grandifolium
2011 Eric Wrubel/NPS
Hypericum grandifolium
2018 Steven Cognac
Hypericum grandifolium
2018 Steven Cognac

Ipomoea indica    Oceanblue morning glory
invasive non-native
Perennial herb

CONVOLVULACEAE

Ipomoea indica
2012 Neal Kramer
Ipomoea indica
2006 Luigi Rignanese
Ipomoea indica
2006 Luigi Rignanese

Iris foetidissima    Stinking iris
non-native
Perennial herb

IRIDACEAE

Iris foetidissima
2010 Phil Pullen
Iris foetidissima
2019 Jennifer Mo
Iris foetidissima
2015 Robert Sikora

Iris orientalis    Yellowband iris
non-native
Perennial herb

IRIDACEAE


Jacaranda mimosifolia    Black poui
non-native
Tree

BIGNONIACEAE

Jacaranda mimosifolia
2019 Ron Vanderhoff
Jacaranda mimosifolia
2015 Zoya Akulova
Jacaranda mimosifolia
Frances Elizabeth Hanan 2005 California Academy of Sciences

Juncus acutus    Spiny rush
native
Perennial grasslike herb (rhizomatous)

JUNCACEAE

Juncus acutus
2006 Luigi Rignanese
Juncus acutus
2006 Luigi Rignanese
Juncus acutus
2010 Gary A. Monroe

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

PLANTAGINACEAE

Kickxia elatine
2018 Ron Vanderhoff
Kickxia elatine
2020 joaquin hale
Kickxia elatine
2020 joaquin hale

Kniphofia uvaria    Redhot poker
invasive non-native
Perennial herb

ASPHODELACEAE

Kniphofia uvaria
2002 Tony Morosco
Kniphofia uvaria
2009 Neal Kramer
Kniphofia uvaria
2002 Tony Morosco

Koelreuteria paniculata    Goldenrain tree
non-native
Tree

SAPINDACEAE

Koelreuteria paniculata
Nick Kurzenko
Koelreuteria paniculata
2016 Zoya Akulova
Koelreuteria paniculata
2016 Neal Kramer

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

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

ASTERACEAE

Lactuca serriola
2017 Gary McDonald
Lactuca serriola
2017 Diane Etchison
Lactuca serriola
2020 Ryan Carle

Lamiastrum galeobdolon    Yellow archangel
non-native
Perennial herb

LAMIACEAE

Lamiastrum galeobdolon
2007 Louis-M. Landry
Lamiastrum galeobdolon
2007 Louis-M. Landry
Lamiastrum galeobdolon
2009 Phil Pullen

Lantana camara    Lantana
invasive non-native
Shrub

VERBENACEAE

Lantana camara
2004 Joseph Dougherty/ecology.org
Lantana camara
2014 Wynn Anderson
Lantana camara
2005 Luigi Rignanese

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 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 tingitanus    Tangier pea
non-native
Annual herb

FABACEAE

Lathyrus tingitanus
2019 Mary Conway
Lathyrus tingitanus
2019 Ron Vanderhoff
Lathyrus tingitanus
2019 Ron Vanderhoff

Lavandula stoechas    French lavender
non-native
Shrub

LAMIACEAE

Lavandula stoechas
2009 Neal Kramer
Lavandula stoechas
2009 Neal Kramer

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

BRASSICACEAE

Lepidium campestre
2008 Keir Morse
Lepidium campestre
2008 Keir Morse
Lepidium campestre
2015 Steve Matson

Leptospermum laevigatum    Australian tea tree
invasive non-native
Shrub

MYRTACEAE

Leptospermum laevigatum
2008 Neal Kramer
Leptospermum laevigatum
2008 Neal Kramer
Leptospermum laevigatum
2013 Neal Kramer

Ligustrum japonicum    Japanese privet
non-native
Tree, Shrub

OLEACEAE

Ligustrum japonicum
© 2015 Zoya Akulova
Ligustrum japonicum
2015 Zoya Akulova
Ligustrum japonicum
2015 Zoya Akulova

Ligustrum lucidum    Glossy privet
invasive non-native
Tree, Shrub

OLEACEAE

Ligustrum lucidum
2012 Ron Vanderhoff
Ligustrum lucidum
2018 Friends of Five Creeks volunteers
Ligustrum lucidum
2018 MCOSD EDRR

Ligustrum ovalifolium    California privet
non-native
Tree, Shrub

OLEACEAE

Ligustrum ovalifolium
2005 Luigi Rignanese
Ligustrum ovalifolium
2005 Luigi Rignanese
Ligustrum ovalifolium
2015 Neal Kramer

Limnobium laevigatum    American spongeplant
invasive non-native
Perennial herb

HYDROCHARITACEAE

Limnobium laevigatum
2018 Joe DiTomaso
Limnobium laevigatum
2016 Angelique Herman
Limnobium laevigatum
2016 Angelique Herman

Limonium duriusculum    European sea lavender
invasive non-native
Perennial herb

PLUMBAGINACEAE

Limonium duriusculum
2016 Ron Vanderhoff
Limonium duriusculum
2016 Ron Vanderhoff
Limonium duriusculum
2018 Ron Vanderhoff L. duriusculum LEFT. L. ramosissimum RIGHT.

Limonium perezii    Canarian sea lavender,  Perez's sealavender
non-native
Perennial herb

PLUMBAGINACEAE

Limonium perezii
2017 Simon Gunner
Limonium perezii
2017 B.J. Dion
Limonium perezii
2015 Debra L. Cook

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

Linum trigynum    French flax
non-native
Annual herb

LINACEAE

Linum trigynum
2013 Peter Warner
Linum trigynum
2013 Peter Warner
Linum trigynum
2013 Peter Warner

Lonicera japonica    Japanese honeysuckle
non-native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera japonica
2009 Neal Kramer
Lonicera japonica
2018 michelle peruzzi
Lonicera japonica
2016 Keir Morse

Lotus angustissimus    Slender bird's foot trefoil,  Slender lotus
non-native
Annual herb

FABACEAE

Lotus angustissimus
2009 Zoya Akulova
Lotus angustissimus
2015 James Gonsman
Lotus angustissimus
2009 Zoya Akulova

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

Ludwigia decurrens    Wingleaf primrose-willow
non-native
Perennial herb

ONAGRACEAE

Ludwigia decurrens
2014 Evan Padgett

Lychnis coronaria    Rose campion
non-native
Perennial herb

CARYOPHYLLACEAE

Lychnis coronaria
2020 Chico Hiking Association
Lychnis coronaria
2012 Debra L. Cook
Lychnis coronaria
2013 Debra L. Cook

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

Anagallis monelli    Flaxleaf pimpernel
non-native
Perennial herb

MYRSINACEAE

Anagallis monelli
2012 Jean Pawek (Anagallis monelli)
Anagallis monelli
2016 Glen Schneider
Anagallis monelli
2002 Tony Morosco

Macfadyena unguis-cati    Catclawvine
non-native
Tree

BIGNONIACEAE

Macfadyena unguis-cati
2020 Jean Pawek
Macfadyena unguis-cati
2020 Jean Pawek
Macfadyena unguis-cati
2020 Jean Pawek

Malephora crocea    Coppery mesembryanthemum
invasive non-native
Perennial herb

AIZOACEAE

Malephora crocea
2011 Neal Kramer
Malephora crocea
2011 Neal Kramer
Malephora crocea
1999 Joe DiTomaso

Lavatera cretica    Cretan mallow
non-native
Shrub

MALVACEAE

Lavatera cretica
2007 Neal Kramer
Lavatera cretica
2014 Steve Matson
Lavatera cretica
2006 Vince Scheidt

Maytenus boaria    Mayten
invasive non-native
Tree, Shrub

CELASTRACEAE

Maytenus boaria
2011 Sam Abercrombie
Maytenus boaria
2012 Sam Abercrombie
Maytenus boaria
2011 Sam Abercrombie

Melianthus major    Honey flower
non-native
Shrub

MELIANTHACEAE

Melianthus major
2010 Zoya Akulova
Melianthus major
2018 Zoya Akulova
Melianthus major
2010 Zoya Akulova

Melilotus indicus    Annual yellow sweetclover
non-native
Annual herb

FABACEAE

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

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

FABACEAE

Melilotus officinalis
2010 Jean Pawek
Melilotus officinalis
2020 Bob Sweatt
Melilotus officinalis
2020 Bob Sweatt

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

FABACEAE

Melilotus alba
2010 Jean Pawek
Melilotus alba
2020 Bob Sweatt
Melilotus alba
2020 Bob Sweatt

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

LAMIACEAE

Melissa officinalis
2001 Tony Morosco
Melissa officinalis
2007 Louis-M. Landry
Melissa officinalis
2001 Tony Morosco

Mentha spicata    Spearmint
non-native
Perennial herb

LAMIACEAE

Mentha spicata
2008 Keir Morse
Mentha spicata
2015 Barry Breckling
Mentha 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

Mercurialis annua    Annual mercury
non-native
Annual herb

EUPHORBIACEAE

Mercurialis annua
2009 Neal Kramer
Mercurialis annua
2015 Julia King
Mercurialis annua
2013 Neal Kramer

Mesembryanthemum nodiflorum    Slender leaved ice plant,  Slenderleaf iceplant,  Small flowered iceplant
invasive non-native
Annual herb

AIZOACEAE

Mesembryanthemum nodiflorum
2017 B.J. Dion
Mesembryanthemum nodiflorum
2010 Gary A. Monroe
Mesembryanthemum nodiflorum
2019 Jennifer Mo

Muehlenbeckia complexa    Maidenhair vine,  Mattress vine
non-native
Vine

POLYGONACEAE

Muehlenbeckia complexa
2009 Neal Kramer
Muehlenbeckia complexa
2012 Thomas Reyes
Muehlenbeckia complexa
2009 Neal Kramer

Myoporum acuminatum    Strichnine bush
non-native
Tree, Shrub

SCROPHULARIACEAE

Myoporum acuminatum
2011 Ramona Robison
Myoporum acuminatum
2015 Ramona Robison

Nassella tenuissima    Finestem needlegrass,  Mexican feathergrass
invasive non-native
Perennial grass

POACEAE

Nassella tenuissima
2018 michelle peruzzi
Nassella tenuissima
2015 Keir Morse
Nassella tenuissima
2017 James Bailey

Nelumbo lutea    American lotus
non-native
Perennial herb

NELUMBONACEAE

Nelumbo lutea
2006 Molly M McGinnis

Nerium oleander    Oleander
invasive non-native
Tree

APOCYNACEAE

Nerium oleander
2019 Celeste Dodge
Nerium oleander
2007 Louis-M. Landry
Nerium oleander
2019 B.J. Dion

Nothoscordum gracile    Slender false garlic
invasive non-native
Perennial herb

ALLIACEAE

Nothoscordum gracile
2017 Ron Vanderhoff
Nothoscordum gracile
2017 Ron Vanderhoff
Nothoscordum gracile
2001 CDFA

Nymphaea odorata    American white waterlily,  Water lily
invasive non-native
Perennial herb

NYMPHAEACEAE

Nymphaea odorata
2006 Joseph Dougherty/ecology.org
Nymphaea odorata
2006 Louis-M. Landry
Nymphaea odorata
2006 Louis-M. Landry

Nymphoides peltata    Water fringe,  Yellow floatingheart
non-native
Perennial herb

MENYANTHACEAE

Nymphoides peltata
2011 Louis-M. Landry
Nymphoides peltata
2001 CDFA

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

Gaura sinuata    Wavy-leaved gaura
non-native
Perennial herb

ONAGRACEAE

Gaura sinuata
2009 Vince Scheidt
Gaura sinuata
2001 CDFA
Gaura sinuata
2001 CDFA

Oncosiphon piluliferum    Stinknet
invasive non-native
Annual herb

ASTERACEAE

Oncosiphon piluliferum
2003 Dean Wm. Taylor
Oncosiphon piluliferum
2020 Jennifer Mo
Oncosiphon piluliferum
2017 Brooke Stutz

Onobrychis viciifolia    Sainfoin,  Sanfoin
non-native
Perennial herb

FABACEAE

Onobrychis viciifolia
2009 Mary Winter
Onobrychis viciifolia
2009 Mary Winter
Onobrychis viciifolia
2006 Luigi Rignanese

Onopordum illyricum    Illyrian cottonthistle,  Illyrian thistle
invasive non-native
Biennial herb

ASTERACEAE

Onopordum illyricum
2005 Luigi Rignanese
Onopordum illyricum
2005 Luigi Rignanese
Onopordum illyricum
2005 Luigi Rignanese

Onopordum tauricum    Bull cottonthistle,  Taurian thistle
invasive non-native
Perennial herb

ASTERACEAE

Onopordum tauricum
2001 CDFA
Onopordum tauricum
2001 CDFA

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 latifolia    Broadleaf woodsorrel,  Mexican oxalis
non-native
Perennial herb

OXALIDACEAE

Oxalis latifolia
2001 CDFA
Oxalis latifolia
2006 Adonis (Don) Tate
Oxalis latifolia
2001 CDFA

Papaver somniferum    Opium poppy
non-native
Annual herb

PAPAVERACEAE

Papaver somniferum
2007 Pasi Rein
Papaver somniferum
2011 Louis-M. Landry
Papaver somniferum
2011 Louis-M. Landry

Parietaria judaica    Spreading pellitory
non-native
Perennial herb

URTICACEAE

Parietaria judaica
2008 Neal Kramer
Parietaria judaica
2010 Tommaso Sitzia
Parietaria judaica
2010 Susan Schwartz

Parkinsonia aculeata    Jerusalem thorn,  Mexican palo verde
invasive non-native
Tree

FABACEAE

Parkinsonia aculeata
2015 Richard Spellenberg
Parkinsonia aculeata
2016 Erik Larsen
Parkinsonia aculeata
2010 Neal Kramer

Parthenium hysterophorus    Santa maria feverfew
invasive non-native
Perennial herb

ASTERACEAE

Parthenium hysterophorus
© 2015 Richard Spellenberg
Parthenium hysterophorus
2015 Richard Spellenberg
Parthenium hysterophorus
2016 Ron Vanderhoff

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

Paspalum urvillei    Vasey's grass
invasive non-native
Perennial grass

POACEAE

Paspalum urvillei
2006 Tom Cochrane
Paspalum urvillei
2006 Tom Cochrane
Paspalum urvillei
2006 Tom Cochrane

Paspalum vaginatum    Seashore paspalum
invasive non-native
Perennial grass

POACEAE

Paspalum vaginatum
2016 Ron Vanderhoff
Paspalum vaginatum
2018 Ron Vanderhoff
Paspalum vaginatum
2018 Ron Vanderhoff

Passiflora caerulea    Bluecrown passionflower
non-native
Vine

PASSIFLORACEAE

Passiflora caerulea
2015 Ron Vanderhoff
Passiflora caerulea
2018 Ron Vanderhoff
Passiflora caerulea
2018 Ron Vanderhoff

invasive non-native
Vine

PASSIFLORACEAE

Passiflora tripartita var. mollissima
2012 Barry Rice
Passiflora tripartita var. mollissima
2012 Barry Rice
Passiflora tripartita var. mollissima
2012 Barry Rice

invasive non-native
Vine

PASSIFLORACEAE

Passiflora tarminiana
2012 Barry Rice
Passiflora tarminiana
2012 Barry Rice
Passiflora tarminiana
2012 Barry Rice

Peganum harmala    Harmal peganum
invasive non-native
Perennial herb

NITRARIACEAE

Peganum harmala
2011 Debra L. Cook
Peganum harmala
2005 Luigi Rignanese
Peganum harmala
2001 CDFA

Pennisetum ciliare    Buffelgrass
non-native
Perennial grass

POACEAE

Pennisetum ciliare
2013 Keir Morse
Pennisetum ciliare
2019 Belinda Lo
Pennisetum ciliare
2013 Keir Morse

Pennisetum villosum    Feathertop
invasive non-native
Perennial grass

POACEAE

Pennisetum villosum
2018 Ron Vanderhoff
Pennisetum villosum
2001 Tony Morosco
Pennisetum villosum
2018 Steven Cognac

Pentaschistis airoides    False hairgrass
non-native
Annual grass

POACEAE

Pentaschistis airoides
2015 Jon Rebman (ssp. airoides)
Pentaschistis airoides
2015 Jon Rebman (ssp. airoides)

Polygonum persicaria    Spotted ladysthumb
non-native
Annual herb

POLYGONACEAE

Polygonum persicaria
2008 Keir Morse
Polygonum persicaria
2017 Bob Stahmer
Polygonum persicaria
2008 Louis-M. Landry

Polygonum polystachyum    Himalayan knotweed
invasive non-native
Perennial herb

POLYGONACEAE

Polygonum polystachyum
2017 Redwood Community Action Agency
Polygonum polystachyum
2019 David Juliano
Polygonum polystachyum
2001 CDFA

Phalaris arundinacea    Reed canarygrass
native
Perennial grass

POACEAE

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

Phalaris elongata    Kolea grass
invasive non-native
Perennial grass

POACEAE

Phalaris elongata
2018 Steven Cognac
Phalaris elongata
2018 Sarah Inman
Phalaris elongata
2018 Steven Cognac

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

Phoenix dactylifera    Date palm
non-native
Tree, Shrub

ARECACEAE

Phoenix dactylifera
2010 Neal Kramer
Phoenix dactylifera
2016 Zoya Akulova
Phoenix dactylifera
Charles Webber 1998 California Academy of Sciences

Photinia serratifolia    Taiwanese photinia
non-native
Shrub, Tree

ROSACEAE

Photinia serratifolia
2013 Dean Kelch
Photinia serratifolia
2005 Luigi Rignanese
Photinia serratifolia
2015 Kate Symonds

Photinia Xfraseri    Fraser's photinia
non-native
Shrub, Tree

ROSACEAE


Physalis subglabrata    Long leafed tomatillo,  Longleaf groundcherry
invasive non-native
Perennial herb

SOLANACEAE

Physalis subglabrata
2018 Robert L. Carr
Physalis subglabrata
2018 Robert L. Carr
Physalis subglabrata
2018 Robert L. Carr

Phytolacca americana    American pokeweed,  Pokeberry
invasive non-native
Perennial herb

PHYTOLACCACEAE

Phytolacca americana
2004 Tom Greer tbphotos@comcast.net
Phytolacca americana
2012 Dr. Amadej Trnkoczy
Phytolacca americana
2010 Louis-M. Landry

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 pinea    Italian stone pine
non-native
Tree

PINACEAE

Pinus pinea
2020 Zoya Akulova
Pinus pinea
2020 Diana Wahl
Pinus pinea
2016 Zoya Akulova

Pistacia chinensis    Chinese pistache,  Chinese pistachio
invasive non-native
Tree

ANACARDIACEAE

Pistacia chinensis
2012 Ron Vanderhoff
Pistacia chinensis
2018 Thomas Reyes
Pistacia chinensis
2016 Zoya Akulova

Pistia stratiotes    Water lettuce
non-native
Perennial herb

ARACEAE

Pistia stratiotes
2001 CDFA
Pistia stratiotes
2006 Louis-M. Landry
Pistia stratiotes
2016 Ron Vanderhoff

Pittosporum tobira    Japanese cheesewood,  Mock orange
non-native
Tree, Shrub

PITTOSPORACEAE

Pittosporum tobira
2015 Zoya Akulova
Pittosporum tobira
2007 Dr. Amadej Trnkoczy
Pittosporum tobira
2017 Ron Vanderhoff

Pittosporum undulatum    Australian cheesewood,  Victorian box
invasive non-native
Tree, Shrub

PITTOSPORACEAE

Pittosporum undulatum
2008 Zoya Akulova
Pittosporum undulatum
2018 Ron Vanderhoff
Pittosporum undulatum
2018 Ron Vanderhoff

Plantago arenaria    Indian plantain
non-native
Annual herb

PLANTAGINACEAE

Plantago arenaria
2006 Luigi Rignanese
Plantago arenaria
2016 Ron Vanderhoff
Plantago arenaria
2006 Luigi Rignanese

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

Plecostachys serpyllifolia    Petite-licorice
invasive non-native

ASTERACEAE

Plecostachys serpyllifolia
2012 Ron Vanderhoff
Plecostachys serpyllifolia
2018 Ron Vanderhoff
Plecostachys serpyllifolia
2018 Ron Vanderhoff

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

POACEAE

Poa annua
2004 Carol W. Witham
Poa annua
2010 Neal Kramer
Poa annua
2011 Ryan Batten

Polycarpon tetraphyllum    Four leaved all seed,  Four leaved allseed,  Four leaved polycarp
non-native
Annual herb

CARYOPHYLLACEAE

Polycarpon tetraphyllum
2010 Margo Bors
Polycarpon tetraphyllum
2019 Kristin Sabo
Polycarpon tetraphyllum
2019 Kristin Sabo

Polygala myrtifolia    Myrtle leaf milkwort
invasive non-native
Shrub

POLYGALACEAE

Polygala myrtifolia
2016 Pete Frye
Polygala myrtifolia
2015 Pete Frye
Polygala myrtifolia
2013 Dean Wm. Taylor, Ph.D.

Polygonum aviculare    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare
2016 John Doyen
Polygonum aviculare
2008 Keir Morse
Polygonum aviculare
2010 Lee Dittmann

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

POACEAE

Polypogon interruptus
2002 Dean Wm. Taylor
Polypogon interruptus
2009 Zoya Akulova
Polypogon interruptus
2017 Ron Vanderhoff

Populus alba    Silver poplar,  White poplar
non-native
Tree

SALICACEAE

Populus alba
2005 Louis-M. Landry
Populus alba
2005 Louis-M. Landry
Populus alba
1995 Saint Mary's College of California

Populus nigra    Lombardy poplar
non-native
Tree

SALICACEAE

Populus nigra
© 2016 Zoya Akulova
Populus nigra
2016 Zoya Akulova

Puccinellia maritima    Seaside alkaligrass
non-native
Perennial grass

POACEAE

Puccinellia maritima
2009 Whitney Thornton
Puccinellia maritima
2011 Michael Perlmutter
Puccinellia maritima
2011 Michael Perlmutter

Pyrus calleryana    Callery pear
invasive non-native
Tree

ROSACEAE

Pyrus calleryana
2010 Gary A. Monroe
Pyrus calleryana
2012 Gary A. Monroe
Pyrus calleryana
2015 Zoya Akulova

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

RANUNCULACEAE

Ranunculus muricatus
2008 Jorg Fleige
Ranunculus muricatus
2006 George W. Hartwell
Ranunculus muricatus
2019 Chico Hiking Association

Rapistrum rugosum    Annual bastardcabbage
non-native
Annual, Perennial herb

BRASSICACEAE

Rapistrum rugosum
2009 Zoya Akulova
Rapistrum rugosum
2020 Ron Vanderhoff
Rapistrum rugosum
2020 Ron Vanderhoff

Rhagadiolus stellatus    Endive daisy
non-native
Annual herb

ASTERACEAE

Rhagadiolus stellatus
2015 Barry Breckling
Rhagadiolus stellatus
2009 Luigi Rignanese
Rhagadiolus stellatus
2009 Luigi Rignanese

Rhamnus alaternus    Italian buckthorn
invasive non-native
Shrub

RHAMNACEAE

Rhamnus alaternus
2015 Ron Vanderhoff
Rhamnus alaternus
2015 Ron Vanderhoff
Rhamnus alaternus
2011 Eric Wrubel

Romulea rosea    Rosy sandcrocus
invasive non-native
Perennial herb

IRIDACEAE

Romulea rosea
2007 Neal Kramer
Romulea rosea
2008 Jorg Fleige
Romulea rosea
2005 Doreen L. Smith

Romulea rosea var. australis    Rosy sand crocus,  Rosy sandcrocus
non-native
Perennial herb

IRIDACEAE

Romulea rosea var. australis
2019 Janice Kuch
Romulea rosea var. australis
2018 Adam Chasey
Romulea rosea var. australis
2002 Dean Wm. Taylor

Rosa canina    Dog rose
non-native
Shrub

ROSACEAE

Rosa canina
2004 Dr. Amadej Trnkoczy
Rosa canina
2004 Dr. Amadej Trnkoczy
Rosa canina
2014 Dean Wm. Taylor

Rosa rubiginosa    Sweet brier
non-native
Shrub

ROSACEAE

Rosa rubiginosa
2005 George W. Hartwell
Rosa rubiginosa
2008 Neal Kramer
Rosa rubiginosa
2013 Robert Sikora

Rubus laciniatus    Cut leaved blackberry,  Cutleaf blackberry
non-native
Shrub

ROSACEAE

Rubus laciniatus
2009 Barry Breckling
Rubus laciniatus
2017 Chris Friedel
Rubus laciniatus
2009 Zoya Akulova

Rubus ulmifolius    Elmleaf blackberry
non-native
Vine, Shrub

ROSACEAE

Rubus ulmifolius
2005 Luigi Rignanese
Rubus ulmifolius
2020 Jennifer Mo
Rubus ulmifolius
2019 Jennifer Mo

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

POLYGONACEAE

Rumex conglomeratus
2013 Robert Steers/NPS
Rumex conglomeratus
2010 Phil Pullen
Rumex conglomeratus
2008 Keir Morse

Rumex dentatus    Toothed dock
non-native
Annual, Perennial herb

POLYGONACEAE

Rumex dentatus
2009 Zoya Akulova
Rumex dentatus
2009 Zoya Akulova

Rumex obtusifolius    Bitter dock
non-native
Perennial herb

POLYGONACEAE

Rumex obtusifolius
2009 Vernon Smith
Rumex obtusifolius
2008 Louis-M. Landry
Rumex obtusifolius
2009 Vernon Smith

Rumex pulcher    Fiddle dock
non-native
Perennial herb

POLYGONACEAE

Rumex pulcher
2020 Ryan Carle
Rumex pulcher
2008 Margo Bors
Rumex pulcher
2015 John Doyen

Rytidosperma caespitosum    Tufted wallaby grass
invasive non-native
Perennial grass

POACEAE

Rytidosperma caespitosum
2011 Eric Wrubel/NPS
Rytidosperma caespitosum
2019 John Rawlings
Rytidosperma caespitosum
2008 Neal Kramer

Rytidosperma penicillatum    Purple awned wallaby grass ,  Hairy oat grass,  Poverty grass
invasive non-native
Perennial grass

POACEAE

Rytidosperma penicillatum
2010 Robert Steers/NPS
Rytidosperma penicillatum
2011 Eric Wrubel, NPS
Rytidosperma penicillatum
2009 Zoya Akulova

Salpichroa origanifolia    Lily of the valley vine
invasive non-native
Perennial herb

SOLANACEAE

Salpichroa origanifolia
2014 Ron Vanderhoff
Salpichroa origanifolia
2007 Zoya Akulova
Salpichroa origanifolia
2015 Ron Vanderhoff

Salsola soda    Alkali russian thistle,  Oppositeleaf russian thistle
invasive non-native
Annual herb

CHENOPODIACEAE

Salsola soda
2009 Zoya Akulova
Salsola soda
2016 Cal-IPC
Salsola soda
2000 Joe DiTomaso

Salvia aethiopis    Mediterranean sage
invasive non-native
Perennial herb

LAMIACEAE

Salvia aethiopis
2001 CDFA
Salvia aethiopis
2018 Matt Berger
Salvia aethiopis
2001 CDFA

Salvia verbenaca    Verbena sage
non-native
Perennial herb

LAMIACEAE

Salvia verbenaca
2007 Luigi Rignanese
Salvia verbenaca
2007 Luigi Rignanese
Salvia verbenaca
2007 Luigi Rignanese

Scabiosa atropurpurea    Mourningbride,  Pincushion flower,  Pincushion plant
invasive non-native
Annual herb

DIPSACACEAE

Scabiosa atropurpurea
2005 Luigi Rignanese
Scabiosa atropurpurea
2012 Zoya Akulova
Scabiosa atropurpurea
2019 Stephany Dery

Schinus polygamus    Hardee peppertree
non-native
Tree, Shrub

ANACARDIACEAE

Schinus polygamus
2018 Ron Vanderhoff
Schinus polygamus
2009 Barry Rice
Schinus polygamus
2009 Barry Rice

Scolymus hispanicus    Common goldenthistle,  Golden thistle
invasive non-native
Perennial herb

ASTERACEAE

Scolymus hispanicus
2004 Dr. Amadej Trnkoczy
Scolymus hispanicus
2001 CDFA

Senecio linearifolius    Australian fireweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Senecio linearifolius
2016 Ron Vanderhoff
Senecio linearifolius
2015 Ron Vanderhoff
Senecio linearifolius
2015 Ron Vanderhoff

Senecio quadridentatus    Cotton burnweed
non-native
Annual, Perennial herb

ASTERACEAE

Senecio quadridentatus
2019 Adonis Tate
Senecio quadridentatus
2019 Adonis (Don) Tate
Senecio quadridentatus
2019 Adonis (Don) T

Senecio vulgaris    Common groundsel,  Old man in the spring,  Old man of spring
non-native
Annual herb

ASTERACEAE

Senecio vulgaris
2005 Steve Matson
Senecio vulgaris
2019 Ron Vanderhoff
Senecio vulgaris
2020 Chico Hiking Association

Senna didymobotrya    African senna,  African wild cassia
non-native
Shrub

FABACEAE

Senna didymobotrya
2015 Ron Vanderhoff
Senna didymobotrya
2016 Ron Vanderhoff
Senna didymobotrya
© 2014 Zoya Akulova

Senna multiglandulosa    Glandular cassia
non-native
Shrub

FABACEAE

Senna multiglandulosa
2011 Neal Kramer
Senna multiglandulosa
2011 Neal Kramer
Senna multiglandulosa
2011 Neal Kramer

Setaria pumila    Yellow bristlegrass
non-native
Annual grass

POACEAE

Setaria pumila
2007 Robert E. Preston, Ph.D.
Setaria pumila
2014 Neal Kramer
Setaria pumila
2008 John Dittes

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

POACEAE

Setaria viridis
2005 Louis-M. Landry
Setaria viridis
2005 Louis-M. Landry
Setaria viridis
2005 Louis-M. Landry

Sisymbrium altissimum    Tall tumblemustard,  Tumble mustard,  Tumbling mustard
non-native
Annual herb

BRASSICACEAE

Sisymbrium altissimum
2008 Thomas Stoughton
Sisymbrium altissimum
2008 Thomas Stoughton
Sisymbrium altissimum
2010 Jean Pawek

Solanum aviculare    New zealand nightshade,  Nightshade
invasive non-native
Shrub

SOLANACEAE

Solanum aviculare
2009 James Gonsman
Solanum aviculare
2018 Ron Vanderhoff
Solanum aviculare
2017 Barbara Boethling

Solanum carolinense    Carolina horse nettle,  Carolina horsenettle
invasive non-native
Perennial herb

SOLANACEAE

Solanum carolinense
2001 CDFA
Solanum carolinense
2008 Ron Thomas
Solanum carolinense
2001 CDFA

Solanum elaeagnifolium    Horse nettle,  Silver leaved horsenettle,  Silverleaf nightshade
invasive non-native
Perennial herb

SOLANACEAE

Solanum elaeagnifolium
2015 Neal Kramer
Solanum elaeagnifolium
2019 Ron Vanderhoff
Solanum elaeagnifolium
2013 Ron Vanderhoff

Solanum mauritianum    Earleaf nightshade
non-native
Shrub

SOLANACEAE

Solanum mauritianum
2019 James Bailey
Solanum mauritianum
2019 James Bailey
Solanum mauritianum
2019 James Bailey

Solanum nigrum    Black nightshade
non-native
Annual herb

SOLANACEAE

Solanum nigrum
2020 Susan White
Solanum nigrum
2005 Dr. Amadej Trnkoczy
Solanum nigrum
2005 Dr. Amadej Trnkoczy

Solanum sarrachoides    Hoe nightshade
non-native
Shrub

SOLANACEAE

Solanum sarrachoides
2011 Robert L. Carr
Solanum sarrachoides
2011 Robert L. Carr
Solanum sarrachoides
2011 Robert L. Carr

Solanum rostratum    Buffalo berry,  Buffalobur nightshade
non-native
Annual herb

SOLANACEAE

Solanum rostratum
2013 Debra L. Cook
Solanum rostratum
2019 Douglas Gordon-Blackwood
Solanum rostratum
1999 Larry Blakely

Sonchus arvensis    Field sowthistle,  Perennial sow thistle
invasive non-native
Perennial herb

ASTERACEAE

Sonchus arvensis
2015 Richard Spellenberg
Sonchus arvensis
2006 Louis-M. Landry
Sonchus arvensis
2015 Richard Spellenberg

Sonchus asper    Spiny sowthistle
invasive non-native
Annual herb

ASTERACEAE

Sonchus asper
2006 Louis-M. Landry
Sonchus asper
2009 Zoya Akulova
Sonchus asper
2020 Julie A. Kierstead

Sorghum halepense    Johnsongrass
invasive non-native
Perennial grass

POACEAE

Sorghum halepense
2006 Luigi Rignanese
Sorghum halepense
2019 Jennifer Mo
Sorghum halepense
2009 Zoya Akulova

Sphaerophysa salsula    Alkali swainsonpea,  Austrian peaweed
invasive non-native
Perennial herb

FABACEAE

Sphaerophysa salsula
2009 Barry Breckling
Sphaerophysa salsula
2009 Barry Breckling

Sporobolus indicus    Smut grass,  Smutgrass
non-native
Perennial grass

POACEAE

Sporobolus indicus
2011 Steve Matson
Sporobolus indicus
2011 Steve Matson
Sporobolus indicus
2006 Adonis (Don) Tate

Achnatherum brachychaetum    Puna needle grass
invasive non-native
Perennial grass

POACEAE

Achnatherum brachychaetum
2001 CDFA
Achnatherum brachychaetum
2001 CDFA
Achnatherum brachychaetum
2001 CDFA

Stipa capensis    Cape ricegrass
invasive non-native
Annual grass

POACEAE

Stipa capensis
2016 Emily Chase
Stipa capensis
2006 Luigi Rignanese
Stipa capensis
2009 Michael Bell

Nassella manicata    Andean tussockgrass
invasive non-native
Perennial grass

POACEAE

Nassella manicata
2011 Eric Wrubel, NPS
Nassella manicata
2019 Eric Wrubel
Nassella manicata
2018 Eitan Kiin (MCOSD Restoration Crew)

Stipa purpurata    Bristly needle grass
non-native
Perennial grass

POACEAE

Stipa purpurata
2011 Robert Steers/NPS
Stipa purpurata
2011 Steve Matson
Stipa purpurata
2001 CDFA

Malcolmia africana    African mustard
non-native
Annual herb

BRASSICACEAE

Malcolmia africana
2005 Michael Charters
Malcolmia africana
2005 James M. Andre
Malcolmia africana
2005 James M. Andre

Tamarix chinensis    Chinese tamarisk,  Fivestamen tamarisk,  Salt cedar
invasive non-native
Shrub

TAMARICACEAE

Tamarix chinensis
2011 Robert Sivinski
Tamarix chinensis
2015 Robert Sikora
Tamarix chinensis
2014 Ron Wolf

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

ASTERACEAE

Taraxacum officinale
2001 Nick Kurzenko
Taraxacum officinale
2018 Chico Hiking Association
Taraxacum officinale
2019 Diane Etchison

Elymus farctus    Russian wheatgrass
invasive non-native
Perennial grass

POACEAE

Elymus farctus
2017 Mark K. Skinner
Elymus farctus
2019 Mark K. Skinner
Elymus farctus
2019 Mark K. Skinner

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

APIACEAE

Torilis nodosa
2008 Neal Kramer
Torilis nodosa
2004 Laura Ann Eliassen
Torilis nodosa
2013 Robert Steers/NPS

Tradescantia fluminensis    Small leaf spiderwort
non-native
Perennial herb

COMMELINACEAE

Tradescantia fluminensis
2018 Amy Rapport
Tradescantia fluminensis
2016 Catey Ritchie
Tradescantia fluminensis
2018 Michelle Forys

Tragopogon dubius    Goat's beard,  Yellow salsify
invasive non-native
Perennial herb

ASTERACEAE

Tragopogon dubius
2019 Kelli Thompson
Tragopogon dubius
2001 Steven Thorsted
Tragopogon dubius
2006 Louis-M. Landry

Tragopogon porrifolius    Purple salsify
non-native
Perennial herb

ASTERACEAE

Tragopogon porrifolius
2019 Julie dinsdale
Tragopogon porrifolius
2015 David Wolfson
Tragopogon porrifolius
2018 Amy Rapport

Tribolium obliterum    Capetown grass
non-native
Perennial grass

POACEAE


Tribulus terrestris    Puncture vine,  Puncturevine
invasive non-native
Annual herb

ZYGOPHYLLACEAE

Tribulus terrestris
2009 Neal Kramer
Tribulus terrestris
2018 Julie Kierstead Nelson
Tribulus terrestris
2016 Joan Hampton

Trifolium angustifolium    Narrow leaved clover,  Narrowleaf crimson clover
non-native
Annual herb

FABACEAE

Trifolium angustifolium
2017 Gary Morgret
Trifolium angustifolium
2020 Ryan Carle
Trifolium angustifolium
2019 Gary McDonald

Trifolium dubium    Shamrock clover,  Suckling clover
non-native
Annual herb

FABACEAE

Trifolium dubium
2008 Jorg Fleige
Trifolium dubium
2004 Carol W. Witham
Trifolium dubium
2015 Barry Breckling

Trifolium striatum    Knotted clover
non-native
Annual herb

FABACEAE

Trifolium striatum
2008 Keir Morse
Trifolium striatum
2010 Zoya Akulova
Trifolium striatum
2010 Aaron Arthur

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

FABACEAE

Trifolium subterraneum
2008 Jennifer Buck
Trifolium subterraneum
2008 Neal Kramer
Trifolium subterraneum
2019 Matt Berger

Tropaeolum majus    Garden nasturtium,  Nasturtium
invasive non-native
Annual herb, Vine

TROPAEOLACEAE

Tropaeolum majus
2004 Nick Kurzenko
Tropaeolum majus
2014 Zoya Akulova
Tropaeolum majus
Nick Kurzenko

Ulmus parvifolia    Chinese elm,  Siberian elm
non-native
Tree

ULMACEAE

Ulmus parvifolia
2019 Ron Vanderhoff
Ulmus parvifolia
2013 Neal Kramer
Ulmus parvifolia
2019 Ron Vanderhoff

Ulmus pumila    Siberian elm
invasive non-native
Tree

ULMACEAE

Ulmus pumila
2018 Ron Vanderhoff
Ulmus pumila
2015 Steve Matson Ulmus pumila
Ulmus pumila
2016 Zoya Akulova

Urospermum picroides    Bristly tail seed,  Prickly goldenfleece
non-native
Annual, Perennial herb

ASTERACEAE

Urospermum picroides
2009 Neal Kramer
Urospermum picroides
2007 Luigi Rignanese
Urospermum picroides
2011 Eric Wrubel/NPS

Ventenata dubia    North africa grass,  Ventenata grass
invasive non-native
Annual grass

POACEAE

Ventenata dubia
2011 Steve Matson
Ventenata dubia
2011 Steve Matson
Ventenata dubia
2011 Steve Matson

Verbascum blattaria    Moth mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum blattaria
2019 Patrick Furtado
Verbascum blattaria
2014 Garth Wadsworth
Verbascum blattaria
2019 Alison Sheehey

Verbascum virgatum    Wand mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum virgatum
2011 Neal Kramer
Verbascum virgatum
2011 Neal Kramer
Verbascum virgatum
2011 Neal Kramer

Verbena bonariensis    Purple top vervain,  Purpletop vervain
invasive non-native
Annual, Biennial herb

VERBENACEAE

Verbena bonariensis
2003 Gerald Carr
Verbena bonariensis
2003 Gerald Carr
Verbena bonariensis
2008 Jorg Fleige

Verbena litoralis    Seashore vervain
invasive non-native
Biennial, Perennial herb

VERBENACEAE

Verbena litoralis
2011 Barry Breckling
Verbena litoralis
2001 Joe DiTomaso
Verbena litoralis
2000 Joe DiTomaso

Vicia villosa    Hairy vetch
invasive non-native
Annual herb, Vine

FABACEAE

Vicia villosa
2008 Gary McDonald
Vicia villosa
2005 Chris Wagner, SBNF
Vicia villosa
2019 Diane Etchison

Viscum album    European mistletoe
invasive non-native
Shrub (parasitic)

VISCACEAE

Viscum album
2005 Dr. Amadej Trnkoczy
Viscum album
2005 Dr. Amadej Trnkoczy
Viscum album
2007 François Meignant

Vitex agnus-castus    Lilac chastetree
non-native
Tree, Shrub

VERBENACEAE

Vitex agnus-castus
2005 Luigi Rignanese
Vitex agnus-castus
2005 Luigi Rignanese

Vitis vinifera    Cultivated grape,  Wine grape
non-native
Vine, Shrub

VITACEAE

Vitis vinifera
2005 Luigi Rignanese
Vitis vinifera
2005 Joseph Dougherty/ecology.org
Vitis vinifera
2006 Luigi Rignanese

Volutaria canariensis    Canary island knapweed
non-native
Annual herb

ASTERACEAE


Volutaria tubuliflora    Egyptian knapweed
invasive non-native
Annual herb

ASTERACEAE

Volutaria tubuliflora
2015 Ron Vanderhoff
Volutaria tubuliflora
2015 Ron Vanderhoff
Volutaria tubuliflora
2015 Ron Vanderhoff

Zygophyllum fabago    Syrian beancaper
invasive non-native
Perennial herb

ZYGOPHYLLACEAE

Zygophyllum fabago
2001 CDFA
Zygophyllum fabago
2001 CDFA
Zygophyllum fabago
2001 CDFA