Illustrated Plant List

UC IPM Agricultural Weeds

logo Calflora Illustrated Plant List 

All plants mentioned as agricultural weeds on the UC Integrated Pest Management website: http://www.ipm.ucdavis.edu/
128 PLANTS
Abutilon theophrasti    Velvet leaf,  Velvetleaf
non-native
Annual herb

MALVACEAE

Abutilon theophrasti Abutilon theophrasti Abutilon theophrasti
2002 Jennifer Forman
2008 Louis-M. Landry
2002 Jennifer Forman

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

Amaranthus albus Amaranthus albus Amaranthus albus
2006 Keir Morse
2004 Penn Martin II
2005 Steve Matson

Amaranthus deflexus    Amaranth,  Large fruited amaranth,  Largefruit amaranth
non-native
Annual herb

AMARANTHACEAE

Amaranthus deflexus Amaranthus deflexus Amaranthus deflexus
2012 Neal Kramer
2006 Luigi Rignanese
2006 Adonis (Don) Tate

Amaranthus hybridus    Slender pigweed,  Slim amaranth
non-native
Annual herb

AMARANTHACEAE

Amaranthus hybridus Amaranthus hybridus Amaranthus hybridus
2006 Adonis (Don) Tate
2006 Adonis (Don) Tate
2006 Adonis (Don) Tate

Amaranthus palmeri    Carelessweed,  Palmer's amaranth
native
Annual herb

AMARANTHACEAE

Amaranthus palmeri Amaranthus palmeri Amaranthus palmeri
2015 Keir Morse
2008 Zoya Akulova
2011 Christopher Bronny

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

AMARANTHACEAE

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

Amsinckia douglasiana    Douglas' fiddleneck
native
Annual herb

BORAGINACEAE

Amsinckia douglasiana Amsinckia douglasiana Amsinckia douglasiana
2013 Chris Winchell
2013 Chris Winchell
Charles Webber 1998 California Academy of Sciences

Amsinckia menziesii var. intermedia    Common fiddleneck
(currently Amsinckia intermedia)
native
Annual herb

BORAGINACEAE

Amsinckia menziesii var. intermedia Amsinckia menziesii var. intermedia Amsinckia menziesii var. intermedia
2004 George W. Hartwell
2010 Thomas Stoughton
2012 Keir Morse

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

BORAGINACEAE

Amsinckia menziesii Amsinckia menziesii Amsinckia menziesii
2004 James M. Andre
2010 Dee E. Warenycia
2012 Gary McDonald

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

POACEAE

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

Brassica juncea    Brown mustard,  India mustard
non-native
Annual herb

BRASSICACEAE


Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra Brassica nigra Brassica nigra
2011 Jorg & Mimi Fleige
2009 Barry Breckling
2009 Zoya Akulova

Brassica rapa    Common mustard,  Field mustard,  Rape mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica rapa Brassica rapa Brassica rapa
2008 Neal Kramer
2008 Neal Kramer
2009 Zoya Akulova

Brassica rapa var. amplexicaulis    Field mustard
non-native
Annual herb

BRASSICACEAE


Brassica rapa var. rapa    Field mustard,  Turnip
invasive non-native
Annual herb

BRASSICACEAE


Brassica tournefortii    Saharan mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica tournefortii Brassica tournefortii Brassica tournefortii
2005 Michelle Cloud-Hughes
2009 Thomas Stoughton
2009 Thomas Stoughton

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

POACEAE

Bromus diandrus Bromus diandrus Bromus diandrus
2009 Neal Kramer
2008 Zoya Akulova
2004 Carol W. Witham

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

POACEAE

Bromus hordeaceus Bromus hordeaceus Bromus hordeaceus
2006 Brent Miller
2009 Keir Morse
2008 Zoya Akulova

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

POACEAE

Bromus tectorum Bromus tectorum Bromus tectorum
2008 Gary A. Monroe
2001 Joe DiTomaso
2001 Joe DiTomaso

Calandrinia ciliata    Red maids
(currently Calandrinia menziesii)
native
Annual herb

MONTIACEAE

Calandrinia ciliata Calandrinia ciliata Calandrinia ciliata
2008 Neal Kramer
2010 Neal Kramer
2008 Keir Morse

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

BRASSICACEAE

Capsella bursa-pastoris Capsella bursa-pastoris Capsella bursa-pastoris
2007 Carol W. Witham
2008 Gary McDonald
2008 Steve Matson

Cenchrus longispinus    Mat sandbur
invasive non-native
Annual grass

POACEAE

Cenchrus longispinus Cenchrus longispinus Cenchrus longispinus
2013 Trent M. Draper
2013 Trent M. Draper
2011 Aaron Arthur

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

ASTERACEAE

Centaurea solstitialis Centaurea solstitialis Centaurea solstitialis
2004 Carol W. Witham
2008 Luigi Rignanese
2014 Robert F Norris

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

CHENOPODIACEAE

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

Chenopodium murale    Nettle leaf goosefoot,  Sowbane
non-native
Annual herb

CHENOPODIACEAE

Chenopodium murale Chenopodium murale Chenopodium murale
2009 Zoya Akulova
2009 Zoya Akulova
2004 Debra Valov

Cirsium arvense    Canada thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium arvense Cirsium arvense Cirsium arvense
2008 Keir Morse
2007 Luigi Rignanese
2009 Phil Pullen

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

MONTIACEAE

Claytonia perfoliata Claytonia perfoliata Claytonia perfoliata
2015 Robert Sikora
2009 John W. Wall
2007 Neal Kramer

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

CONVOLVULACEAE

Convolvulus arvensis Convolvulus arvensis Convolvulus arvensis
2005 Steve Matson
2008 Dr. Amadej Trnkoczy
2008 Dr. Amadej Trnkoczy

Croton setigerus    Turkey-mullein
(currently Croton setiger)
native
Perennial herb

EUPHORBIACEAE

Croton setigerus Croton setigerus Croton setigerus
2001 Steven Thorsted
2009 Neal Kramer
2001 Steven Thorsted

Cuscuta approximata    Alfalfa dodder
non-native
Annual herb, Vine (parasitic)

CONVOLVULACEAE


Cuscuta campestris    Field dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta campestris Cuscuta campestris Cuscuta campestris
2010 Vernon Smith
1999 Doreen L. Smith
2015 Keir Morse

Cuscuta indecora    Big seed alfalfa dodder,  Bigseed alfalfa dodder
native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta indecora Cuscuta indecora Cuscuta indecora
2011 Sierra Pacific Industries
2011 Sierra Pacific Industries
2011 Sierra Pacific Industries

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

CONVOLVULACEAE

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

Cuscuta leptantha    Slender dodder
non-native
Annual herb, Vine (parasitic)

CONVOLVULACEAE

Cuscuta leptantha Cuscuta leptantha
2008 Neal Kramer
2008 Neal Kramer

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

CONVOLVULACEAE

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

Cynodon dactylon    Bermuda grass,  Bermudagrass
invasive non-native
Perennial grass

POACEAE

Cynodon dactylon Cynodon dactylon Cynodon dactylon
2008 Keir Morse
2008 Keir Morse
2008 Zoya Akulova

Cyperus esculentus    Chufa flatsedge,  Nut grass,  Yellow nutgrass
native
Perennial grasslike herb

CYPERACEAE

Cyperus esculentus Cyperus esculentus Cyperus esculentus
2008 Louis-M. Landry
2009 Vince Scheidt
2003 Steve Matson

Cyperus rotundus    Nutgrass
invasive non-native
Perennial grasslike herb

CYPERACEAE

Cyperus rotundus Cyperus rotundus Cyperus rotundus
2005 Luigi Rignanese
2005 Luigi Rignanese
2005 Luigi Rignanese

Datura stramonium    Jimson weed,  Jimsonweed
non-native
Annual herb

SOLANACEAE

Datura stramonium Datura stramonium Datura stramonium
2004 Joseph Dougherty/ecology.org
2005 Dr. Amadej Trnkoczy
2009 Neal Kramer

Digitaria ischaemum    Smooth crabgrass
non-native
Annual grass

POACEAE

Digitaria ischaemum Digitaria ischaemum Digitaria ischaemum
2006 Dean Wm. Taylor, Ph.D.
2006 Steve Matson
2006 Steve Matson

Digitaria sanguinalis    Hairy crabgrass
non-native
Annual grass

POACEAE

Digitaria sanguinalis Digitaria sanguinalis Digitaria sanguinalis
2005 Luigi Rignanese
2010 Louis-M. Landry
2009 Zoya Akulova

Echinochloa colona    Jungle rice
non-native
Annual grass

POACEAE

Echinochloa colona Echinochloa colona Echinochloa colona
2008 John Dittes
2015 Zoya Akulova
2006 Luigi Rignanese

Echinochloa crus-galli    Barnyard grass,  Japanese millet,  Watergrass
non-native
Annual grass

POACEAE

Echinochloa crus-galli Echinochloa crus-galli Echinochloa crus-galli
2003 George W. Hartwell
2008 Zoya Akulova
2011 Eric Wrubel/NPS

Eleusine indica    Goose grass,  Indian goosegrass
non-native
Annual grass

POACEAE

Eleusine indica Eleusine indica Eleusine indica
2005 Luigi Rignanese
2005 Luigi Rignanese
2014 Dale Ritenour

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

ONAGRACEAE

Epilobium brachycarpum Epilobium brachycarpum Epilobium brachycarpum
2001 Jeff Abbas
2007 Ron Wolf
2007 Neal Kramer

Eragrostis barrelieri    Mediterranean lovegrass
non-native
Annual grass

POACEAE

Eragrostis barrelieri Eragrostis barrelieri Eragrostis barrelieri
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson

Eragrostis cilianensis    Stinkgrass
non-native
Annual grass

POACEAE

Eragrostis cilianensis Eragrostis cilianensis Eragrostis cilianensis
2012 Keir Morse
2005 Luigi Rignanese
2004 Laura Ann Eliassen

Eragrostis curvula    Weeping lovegrass
non-native
Perennial grass

POACEAE


Eragrostis lehmanniana    Lehmann lovegrass
non-native
Perennial grass

POACEAE


Eragrostis minor    Little lovegrass
non-native
Annual grass

POACEAE


Conyza bonariensis    Flax-leaved horseweed
(currently Erigeron bonariensis)
non-native
Annual herb

ASTERACEAE

Conyza bonariensis Conyza bonariensis Conyza bonariensis
2009 Neal Kramer
2008 Jorg Fleige
2009 Neal Kramer

Conyza canadensis    Canada horseweed
(currently Erigeron canadensis)
native
Annual herb

ASTERACEAE

Conyza canadensis Conyza canadensis Conyza canadensis
2005 Luigi Rignanese
2010 Louis-M. Landry
2009 Neal Kramer

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

GERANIACEAE

Erodium botrys Erodium botrys Erodium botrys
2002 James B. Gratiot
2010 Zoya Akulova
2010 Zoya Akulova

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

GERANIACEAE

Erodium cicutarium Erodium cicutarium Erodium cicutarium
2009 Keir Morse
2007 Luigi Rignanese
2008 Steve Matson

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

GERANIACEAE

Erodium moschatum Erodium moschatum Erodium moschatum
2007 Luigi Rignanese
2003 Michael Charters
2012 Neal Kramer

Gnaphalium collinum    Creeping cudweed
(currently Euchiton gymnocephalus)
non-native
Perennial herb

ASTERACEAE

Gnaphalium collinum Gnaphalium collinum
2008 Zoya Akulova
2009 Zoya Akulova

Chamaesyce maculata    Spotted spurge
(currently Euphorbia maculata)
non-native
Annual herb

EUPHORBIACEAE

Chamaesyce maculata Chamaesyce maculata Chamaesyce maculata
2014 John Doyen
2015 Barry Breckling
2014 John Doyen

Polygonum convolvulus    Black bindweed
(currently Fallopia convolvulus)
non-native
Annual herb

POLYGONACEAE

Polygonum convolvulus Polygonum convolvulus Polygonum convolvulus
2008 Keir Morse
2005 Louis-M. Landry
2005 Louis-M. Landry

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

POACEAE

Festuca arundinacea Festuca arundinacea Festuca arundinacea
2008 Keir Morse
2000 Joe DiTomaso
2008 Keir Morse

Lolium perenne    Italian rye grass
(currently Festuca perennis)
non-native
Annual, Perennial grass

POACEAE

Lolium perenne Lolium perenne Lolium perenne
2004 Carol W. Witham
2003 James B. Gratiot
2009 Barry Rice

Lolium multiflorum    Italian rye grass
(currently Festuca perennis)
non-native
Annual, Perennial grass

POACEAE

Lolium multiflorum Lolium multiflorum Lolium multiflorum
2004 Carol W. Witham
2003 James B. Gratiot
2009 Barry Rice

Gnaphalium purpureum    Featherweed
(currently Gamochaeta ustulata)
native
Perennial herb

ASTERACEAE

Gnaphalium purpureum Gnaphalium purpureum Gnaphalium purpureum
2008 Neal Kramer
2015 Robert Sikora
2007 Neal Kramer

Helianthus annuus    Common sunflower,  Hairy leaved sunflower,  Sunflower
native
Annual herb

ASTERACEAE

Helianthus annuus Helianthus annuus Helianthus annuus
2003 George W. Hartwell
2011 Zoya Akulova
2010 Neal Kramer

Helianthus ciliaris    Texas blueweed
invasive non-native
Perennial herb

ASTERACEAE

Helianthus ciliaris Helianthus ciliaris Helianthus ciliaris
2001 CDFA
2001 CDFA
2001 CDFA

Helianthus maximilianii    Maximilian sunflower
non-native
Perennial herb

ASTERACEAE

Helianthus maximilianii
2011 Gina Darin

Helianthus petiolaris    Prairie sunflower
non-native
Perennial herb

ASTERACEAE

Helianthus petiolaris Helianthus petiolaris Helianthus petiolaris
2010 Ron Wolf
2010 Ron Wolf
2015 Richard Spellenberg

Helianthus tuberosus    Jerusalem artichoke
non-native
Perennial herb

ASTERACEAE

Helianthus tuberosus Helianthus tuberosus
2011 Nick Kurzenko
2005 Luigi Rignanese

Hemizonia congesta    Hayfield tarweed
native
Annual herb

ASTERACEAE

Hemizonia congesta Hemizonia congesta Hemizonia congesta
2015 Vernon Smith
2010 Vernon Smith
2015 John Doyen

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

POACEAE

Hordeum jubatum Hordeum jubatum Hordeum jubatum
2005 Louis-M. Landry
2009 Barry Rice
2009 Zoya Akulova

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

POACEAE

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

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

ASTERACEAE

Hypochaeris radicata Hypochaeris radicata Hypochaeris radicata
2015 John Doyen
2008 Sean B. Smith
2004 Michael Charters

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

PLANTAGINACEAE

Kickxia elatine Kickxia elatine Kickxia elatine
2008 Keir Morse
2005 Michael Charters
2008 Keir Morse

Kickxia spuria    Fluellin,  Roundleaf cancerwort
non-native
Perennial herb

PLANTAGINACEAE

Kickxia spuria Kickxia spuria Kickxia spuria
2002 Tony Morosco
2013 Neal Kramer
2013 Zoya Akulova

Kochia scoparia    Common red sage,  Mexican fireweed,  Summer cypress
invasive non-native
Annual herb

CHENOPODIACEAE

Kochia scoparia Kochia scoparia Kochia scoparia
2001 CDFA
2006 Erin McDermott
2014 Zoya Akulova

Kyllinga brevifolia    Short leaf spikesedge,  Shortleaf spikesedge
non-native
Perennial grasslike herb

CYPERACEAE

Kyllinga brevifolia Kyllinga brevifolia Kyllinga brevifolia
2015 Vernon Smith
2015 Vernon Smith
2001 CDFA

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

ASTERACEAE

Lactuca serriola Lactuca serriola Lactuca serriola
2008 Keir Morse
2006 Jennifer Naegele
2006 Luigi Rignanese

Lamium amplexicaule    Giraffe head,  Henbit deadnettle
non-native
Annual herb

LAMIACEAE

Lamium amplexicaule Lamium amplexicaule Lamium amplexicaule
2003 Michael Charters
2005 Steve Matson
2008 Gary McDonald

Coronopus didymus    Lesser swine cress
(currently Lepidium didymum)
non-native
Annual herb

BRASSICACEAE

Coronopus didymus Coronopus didymus Coronopus didymus
2007 Neal Kramer
2011 Barry Breckling
2009 Neal Kramer

Leptochloa fascicularis    Bearded sprangletop
(currently Leptochloa fusca ssp. fascicularis)
native
Annual grass

POACEAE

Leptochloa fascicularis Leptochloa fascicularis Leptochloa fascicularis
2007 Tom Cochrane
2010 Zoya Akulova
2007 Tom Cochrane

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

Malva parviflora Malva parviflora Malva parviflora
2012 Neal Kramer
2002 Tom Annese
2008 Luigi Rignanese

Chamomilla suaveolens    Pineapple weed
(currently Matricaria discoidea)
native
Annual herb

ASTERACEAE

Chamomilla suaveolens Chamomilla suaveolens Chamomilla suaveolens
2008 Keir Morse
2005 Louis-M. Landry
2008 Steve Matson

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

FABACEAE

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

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

FABACEAE

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

Oxalis pes-caprae    Bermuda buttercup,  Sourgrass
invasive non-native
Perennial herb

OXALIDACEAE

Oxalis pes-caprae Oxalis pes-caprae Oxalis pes-caprae
Jo-Ann Ordano 2005 California Academy of Sciences
2009 Thomas Stoughton
2009 Barry Rice

Panicum capillare    Old witch grass,  Witchgrass
native
Annual grass

POACEAE

Panicum capillare Panicum capillare Panicum capillare
2006 Louis-M. Landry
2008 Louis-M. Landry
2006 Louis-M. Landry

Paspalum dilatatum    Dallis grass,  Dallisgrass
non-native
Perennial grass

POACEAE

Paspalum dilatatum Paspalum dilatatum Paspalum dilatatum
2006 Steven Thorsted
2009 Zoya Akulova
2002 Ann Dennis

Polygonum persicaria    Spotted ladysthumb
(currently Persicaria maculosa)
non-native
Annual herb

POLYGONACEAE

Polygonum persicaria Polygonum persicaria Polygonum persicaria
2008 Keir Morse
2008 Louis-M. Landry
2008 Keir Morse

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

POACEAE

Phalaris minor Phalaris minor Phalaris minor
2006 James M. Andre
2006 James M. Andre
2010 Eliza Maher Hasselquist

Physalis acutifolia    Sharp leaf ground cherry,  Sharpleaf groundcherry
native
Annual herb

SOLANACEAE

Physalis acutifolia Physalis acutifolia Physalis acutifolia
2009 Neal Kramer
2009 Neal Kramer
2009 Neal Kramer

Physalis lancifolia    Narrow leaf tomatillo
non-native
Annual herb

SOLANACEAE


Physalis philadelphica    Mexican groundcherry,  Tomatillo
non-native
Annual herb

SOLANACEAE

Physalis philadelphica Physalis philadelphica Physalis philadelphica
2011 Louis-M. Landry
2015 Zoya Akulova
2015 Zoya Akulova

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

PLANTAGINACEAE

Plantago lanceolata Plantago lanceolata Plantago lanceolata
2007 Neal Kramer
2008 Keir Morse
2009 Lee Dittmann

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

POACEAE

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

Polygonum arenastrum    Prostrate knotweed
(currently Polygonum aviculare ssp. depressum)
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum arenastrum Polygonum arenastrum Polygonum arenastrum
2009 Barry Breckling
2011 Jorg & Mimi Fleige
2008 Neal Kramer

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

POACEAE

Polypogon monspeliensis Polypogon monspeliensis Polypogon monspeliensis
2007 Neal Kramer
2006 Steve Matson
2006 Steve Matson

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

PORTULACACEAE

Portulaca oleracea Portulaca oleracea Portulaca oleracea
2008 Keir Morse
2006 Jeff Abbas
2004 James M. Andre

Gnaphalium luteo-album    Jersey cudweed
(currently Pseudognaphalium luteoalbum)
non-native
Annual herb

ASTERACEAE

Gnaphalium luteo-album Gnaphalium luteo-album Gnaphalium luteo-album
2008 Jorg Fleige
2008 Gary McDonald
2015 John Doyen

Gnaphalium stramineum    Cottonbatting plant
(currently Pseudognaphalium stramineum)
native
Perennial herb

ASTERACEAE

Gnaphalium stramineum Gnaphalium stramineum Gnaphalium stramineum
2007 Neal Kramer
2009 Neal Kramer
2009 Neal Kramer

Raphanus raphanistrum    Jointed charlock,  Painted charlock,  Wild radish
non-native
Annual, Perennial herb

BRASSICACEAE

Raphanus raphanistrum Raphanus raphanistrum Raphanus raphanistrum
2008 Keir Morse
2003 Yulan Tong
2004 Carol W. Witham

Rubus discolor    Himalayan blackberry
(currently Rubus armeniacus)
invasive non-native
Shrub

ROSACEAE

Rubus discolor Rubus discolor Rubus discolor
2002 George W. Hartwell
2008 Thomas Stoughton
2009 Zoya Akulova

Rubus armeniacus    Himalayan blackberry
invasive non-native
Shrub

ROSACEAE

Rubus armeniacus Rubus armeniacus Rubus armeniacus
2002 George W. Hartwell
2008 Thomas Stoughton
2009 Zoya Akulova

Rubus leucodermis    Western raspberry,  White bark raspberry,  White stemmed raspberry
native
Shrub

ROSACEAE

Rubus leucodermis Rubus leucodermis Rubus leucodermis
2008 Zoya Akulova
2009 Zoya Akulova
2014 Zoya Akulova

Rubus parviflorus    Western thimbleberry
native
Vine, Shrub

ROSACEAE

Rubus parviflorus Rubus parviflorus Rubus parviflorus
2004 George W. Hartwell
2004 Robert Sivinski
2005 Robert Sivinski

Rubus ursinus    California blackberry,  Pacific blackberry
native
Vine, Shrub

ROSACEAE

Rubus ursinus Rubus ursinus Rubus ursinus
2008 Keir Morse
2013 Zoya Akulova
2007 Neal Kramer

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella Rumex acetosella Rumex acetosella
2007 Dr. Mark S. Brunell
2013 Margo Bors
2004 Carol W. Witham

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

POLYGONACEAE

Rumex crispus Rumex crispus Rumex crispus
2000 Joseph Dougherty/ecology.org
2009 Zoya Akulova
2004 Carol W. Witham

Salsola tragus    Prickly russian thistle,  Russianthistle,  Tumbleweed
invasive non-native
Annual herb

CHENOPODIACEAE

Salsola tragus Salsola tragus Salsola tragus
2001 Jeff Abbas
2009 Neal Kramer
2001 Jeff Abbas

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

ASTERACEAE

Senecio vulgaris Senecio vulgaris Senecio vulgaris
2005 Steve Matson
2010 Neal Kramer
2008 Neal Kramer

Setaria faberi    Foxtail,  Japanese bristlegrass
invasive non-native
Annual grass

POACEAE

Setaria faberi Setaria faberi Setaria faberi
2007 Robert E. Preston, Ph.D.
2008 Louis-M. Landry
2008 Louis-M. Landry

Setaria pumila    Yellow bristlegrass
non-native
Annual grass

POACEAE

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

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

POACEAE

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

Sisymbrium irio    London rocket
invasive non-native
Annual herb

BRASSICACEAE

Sisymbrium irio Sisymbrium irio Sisymbrium irio
2006 Richard Zmasek
2007 Luigi Rignanese
2010 Zoya Akulova

Solanum nigrum    Black nightshade
non-native
Annual herb

SOLANACEAE

Solanum nigrum Solanum nigrum Solanum nigrum
2005 Dr. Amadej Trnkoczy
2010 Tommaso Sitzia
2005 Luigi Rignanese

Solanum physalifolium    Hoe nightshade
non-native
Shrub

SOLANACEAE


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

ASTERACEAE

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

Sonchus asper    Spiny sowthistle
invasive non-native
Annual herb

ASTERACEAE

Sonchus asper Sonchus asper Sonchus asper
2006 Louis-M. Landry
2004 Robert E. Preston, Ph.D.
2005 Steve Matson

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

ASTERACEAE

Sonchus asper ssp. asper Sonchus asper ssp. asper Sonchus asper ssp. asper
2011 Zoya Akulova
2006 Brent Miller
2010 Zoya Akulova

Sonchus oleraceus    Common sow thistle,  Common sowthistle,  Sow thistle
non-native
Annual herb

ASTERACEAE

Sonchus oleraceus Sonchus oleraceus Sonchus oleraceus
2008 Gary McDonald
2004 Laura Ann Eliassen
2008 Gary McDonald

Sonchus tenerrimus    Slender sow thistle,  Slender sowthistle
non-native
Annual herb

ASTERACEAE

Sonchus tenerrimus Sonchus tenerrimus Sonchus tenerrimus
2007 Luigi Rignanese
2005 Luigi Rignanese
2007 Luigi Rignanese

Sorghum halepense    Johnsongrass
invasive non-native
Perennial grass

POACEAE

Sorghum halepense Sorghum halepense Sorghum halepense
2006 Luigi Rignanese
2009 Zoya Akulova
2011 Barry Breckling

Stellaria media    Chickweed
non-native
Annual herb

CARYOPHYLLACEAE

Stellaria media Stellaria media Stellaria media
2001 Jeff Abbas
2008 Steve Matson
2008 Gary McDonald

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

ASTERACEAE

Taraxacum officinale Taraxacum officinale Taraxacum officinale
2005 Louis-M. Landry
2007 Louis-M. Landry
2008 Keir Morse

Toxicodendron diversilobum    Poison oak,  Poisonoak
native
Vine, Shrub

ANACARDIACEAE

Toxicodendron diversilobum Toxicodendron diversilobum Toxicodendron diversilobum
2008 Gary McDonald
2008 Zoya Akulova
2008 Keir Morse

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

ZYGOPHYLLACEAE

Tribulus terrestris Tribulus terrestris Tribulus terrestris
2004 James M. Andre
2004 James M. Andre
2011 Zoya Akulova

Trifolium repens    White clover
non-native
Perennial herb

FABACEAE

Trifolium repens Trifolium repens Trifolium repens
2007 Steve Matson
2014 Zoya Akulova
2005 George W. Hartwell

Urtica urens    Annual stinging nettle,  Dwarf nettle
non-native
Annual herb

URTICACEAE

Urtica urens Urtica urens Urtica urens
2008 Gary McDonald
2015 Belinda Lo
2012 Jean Pawek

Veronica persica    Bird's eye speedwell,  Birdeye speedwell
non-native
Annual herb

PLANTAGINACEAE

Veronica persica Veronica persica Veronica persica
2011 Robert Hamilton
2009 Keir Morse
2006 Luigi Rignanese

Xanthium strumarium    Rough cockleburr
native
Annual herb

ASTERACEAE

Xanthium strumarium Xanthium strumarium Xanthium strumarium
2008 John Dittes
2008 Louis-M. Landry
2014 Neal Kramer