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| Bay Area Early Detection Network: early detection target weeds in the Bay Area. Compiled by Mike Perlmutter @ 2012 with help from Andrea Williams and many others. Nomenclature updated Feb 17 2020. | ||||||
| 73 PLANTS |
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Acacia paradoxa Kangaroo thorn
• invasive non-native
Shrub 
© 2022 Rocky Bajada 
© 2022 Katherine Stratton 
© 2022 Katherine Stratton |
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Acaena novae-zelandiae Biddy biddy
• invasive non-native
Shrub (stem succulent) 
© 2023 Patrick Hoffman 
© 2024 Patrick Hoffman 
© 2018 Hayley Ross |
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Aegilops triuncialis Barbed goatgrass
• invasive non-native
Annual grass 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2018 Scott Oneto |
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Ambrosia trifida Giant ragweed
• invasive non-native
Annual herb  © 2015 Richard Spellenberg  © 2008 Louis-M. Landry  © 2010 Jean Pawek |
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Araujia sericifera Bladderflower
• invasive non-native
Perennial herb, Vine 
© 2019 Ron Vanderhoff 
© 2021 Jennifer Mo 
© 2020 Ron Vanderhoff |
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Arctotheca calendula Cape weed
• invasive non-native
Annual, Perennial herb 
© 2021 Patrick Hoffman 
© 2023 Nancy Poss 
© 2016 Andrea Pickart |
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Arrhenatherum elatius Tall oatgrass
non-native
Perennial grass 
© 2020 Doug Allshouse 
© 2021 John Rawlings 
© 2019 Julian Geoghegan |
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Asparagus asparagoides African asparagus fern
• invasive non-native
Vine 
© 2023 Cynthia Powell 
© 2018 Ron Vanderhoff 
© 2022 Joan Miller |
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Asphodelus fistulosus Asphodel, Onionweed
• invasive non-native
Perennial herb 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2019 Ron Vanderhoff |
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Brachypodium sylvaticum Slender false brome
• invasive non-native
Perennial grass 
© 2018 Ecological Concerns Inc 
© 2021 SMCP NRM Intern 
© 2020 John Rawlings |
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Buddleja davidii Butterfly bush, Summer lilac
• invasive non-native
Tree, Shrub 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
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Carduus acanthoides Plumeless thistle, Spiny plumeless thistle
• invasive non-native
Perennial herb 
© 2016 Catherine Talbot 
© 2016 Catherine Talbot 
© 2015 Catherine Talbot |
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Carex pendula Hanging sedge
• invasive non-native
Perennial grasslike herb 
© 2015 Andrea Williams 
© 2022 Mitchell Blake 
© 2021 R.A. Chasey |
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Carthamus leucocaulos White stemmed distaff thistle, Whitestem distaff thistle
• invasive non-native
Annual herb  © 2001 CDFA  © 2001 CDFA |
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Centaurea diffusa Diffuse knapweed, White knapweed
• invasive non-native
Perennial herb 
© 2020 David Greenberger 
© 2022 Bob Sweatt 
© 2019 Catherine Talbot |
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Centaurea iberica Iberian knapweed
• invasive non-native
Perennial herb 
© 2016 Don Thomas  © 2001 CDFA  © 2001 CDFA |
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Centaurea maculosa Spotted knapweed
• invasive non-native
Perennial herb 
© 2021 Patrick Hoffman 
© 2024 Joan Miller 
© 2024 Joan Miller |
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Centaurea sulphurea Sicilian star thistle, Sulphur knapweed
• invasive non-native
Annual herb 
© 2019 Stacie Sherman 
© 2017 Stacie Sherman 
© 2009 Ramona Robison |
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Cestrum parqui Chilean jessamine
• invasive non-native
Tree 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter |
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Chondrilla juncea Hogbite, Skeleton weed
• invasive non-native
Perennial herb 
© 2021 George Williams 
© 2024 Mike Russler 
© 2021 Bob Sweatt |
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Cirsium undulatum Wavy leaved thistle, Wavyleaf thistle
non-native
Perennial herb 
© 2020 Chris McDonald 
© 2020 Chris McDonald  © 2015 Richard Spellenberg |
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Coprosma repens Creeping mirrorplant
non-native
Shrub 
© 2015 Richard Chasey 
© 2009 Dean Taylor 
© 2011 Daniel Gluesenkamp |
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Crupina vulgaris Bearded creeper, Common crupina
• invasive non-native
Annual herb 
© 2023 Norm Macdonald 
© 2012 Ramona Robison 
© 2015 Daniel Lay |
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Cuscuta japonica Japanese dodder
• invasive non-native
Annual herb, Vine (parasitic) 
© 2014 Michael Perlmutter 
© 2013 David Chang 
© 2014 Michael Perlmutter |
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Cytisus striatus Portuguese broom, Striated broom
• invasive non-native
Shrub 
© 2019 Andy Jones 
© 2021 Cynthia Powell 
© 2021 Cynthia Powell |
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Echium plantagineum Salvation echium, Salvation jane, Viper's bugloss
• invasive non-native
Annual, Perennial herb 
© 2020 John Rawlings 
© 2019 Ken Hickman 
© 2011 Daniel Gluesenkamp |
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Euphorbia terracina carnation spurge, Geraldton carnation weed
• invasive non-native
Perennial herb 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
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Euphorbia esula Leafy spurge
• invasive non-native
Perennial herb 
© 2023 Nikki Valentine 
© 2019 Lenihan Mazur 
© 2019 Lenihan Mazur |
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Fallopia baldschuanica Bukhara fleeceflower
non-native
Vine 
© 2023 Ecological Concerns Inc 
© 2021 Jennifer Mo 
© 2016 Michael Chasse |
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Fallopia japonica Japanese knotweed
• invasive non-native
Perennial herb 
© 2021 Margot Cunningham 
© 2024 Jacob Martin 
© 2019 John Malpas |
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Festuca pratensis Meadow fescue
non-native
Perennial grass 
© 2023 Elliot Gunnison  © 2012 Al Keuter  © 2012 Al Keuter |
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Gazania linearis Gazania, Treasure flower, Treasureflower
• invasive non-native
Perennial herb 
© 2016 Barbara Boethling 
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
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Gunnera tinctoria Chilean gunnera
• invasive non-native
Perennial herb (aquatic) 
© 2011 Michael Perlmutter  © 2010 Zoya Akulova 
© 2011 Michael Perlmutter |
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Halimodendron halodendron Common salttree, Russian salt tree
• invasive non-native
Shrub  © 2001 CDFA  © 2001 CDFA  © 2001 CDFA |
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Helichrysum petiolare Licorice plant
• invasive non-native
Shrub, Vine 
© 2021 Elliot Gunnison 
© 2022 Mike Russler 
© 2022 Mike Russler |
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Hypericum canariense Canary island st. johnswort
• invasive non-native
Shrub 
© 2024 Ron Vanderhoff 
© 2024 Ron Vanderhoff 
© 2015 Leah Bedoian |
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Isatis tinctoria Dyer's woad, Dyers woad
• invasive non-native
Biennial, Perennial herb 
© 2021 Steve Matson 
© 2021 Steve Matson 
© 2021 Steve Matson |
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Lepidium appelianum Hairy whitetop
• invasive non-native
Perennial herb  © 2023 matsonburger  © 2023 matsonburger 
© 2019 Richard Spjut |
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Lepidium campestre Cow cress, English pepper grass, Field pepper grass
non-native
Annual, Perennial herb 
© 2004 Steve Matson 
© 2004 Steve Matson 
© 2004 Steve Matson |
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Ligustrum lucidum Glossy privet
• invasive non-native
Tree, Shrub 
© 2021 Alex Nikolaou 
© 2021 Ron Vanderhoff 
© 2017 Ron Vanderhoff |
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Ligustrum ovalifolium California privet
non-native
Tree, Shrub 
© 2018 Abbot Chambers 
© 2020 Diana Wahl 
© 2013 Ramona Robison |
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Limonium ramosissimum Algerian sealavender
non-native
Perennial herb 
© 2017 Ron Vanderhoff 
© 2015 Ron Vanderhoff 
© 2018 Ron Vanderhoff L. durusculum LEFT. L. ramosissimum RIGHT. |
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Linaria genistifolia ssp. dalmatica Dalmatian toadflax
• invasive non-native
Perennial herb 
© 2021 Dennis Diaz 
© 2016 Phil Zortman 
© 2019 Caleb Cole |
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Linaria vulgaris Butter and eggs
• invasive non-native
Perennial herb 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt |
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Lonicera japonica Japanese honeysuckle
non-native
Vine, Shrub 
© 2018 michelle peruzzi 
© 2022 Andy Ford 
© 2021 Ron Vanderhoff |
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Lythrum salicaria Purple loosestrife
• invasive non-native
Perennial herb 
© 2023 Donald Burk 
© 2022 Eric Jennings 
© 2020 Katie Rian |
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Oenothera sinuosa Wavy-leaved gaura
non-native
Perennial herb  © 2009 Vince Scheidt  © 2001 CDFA  © 2001 CDFA |
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Oenothera xenogaura Drummond's gaura
non-native
Perennial herb 
© 2016 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
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Onopordum acanthium Scotch cottonthistle
• invasive non-native
Perennial herb 
© 2021 Diana Wing 
© 2019 Catherine Talbot 
© 2018 Joe Woods |
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Onopordum Illyricum Illyrian cottonthistle, Illyrian thistle
• invasive non-native
Annual, Biennial herb 
© 2021 Nancy Barrera 
© 2021 Nancy Barrera 
© 2021 Nancy Barrera |
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Paspalum urvillei Vasey's grass
• invasive non-native
Perennial grass 
© 2021 Jennifer Mo 
© 2021 Jennifer Mo 
© 2024 Donald Burk |
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Persicaria wallichii Himalayan knotweed
• invasive non-native
Perennial herb 
© 2017 Redwood Community Action Agency 
© 2019 David Juliano 
© 2014 Ramona Robison |
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Pyracantha coccinea Scarlet firethorn
• invasive non-native
Shrub 
© 2019 Randy Huey  © 2005 Luigi Rignanese  © 2005 Luigi Rignanese |
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Pyracantha crenulata Nepalese firethorn
• invasive non-native
Shrub 
© 2022 Morgan Stickrod 
© 2022 Morgan Stickrod 
© 2019 Danielle Carney |
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Acroptilon repens Russian knapweed
non-native
Perennial herb 
© 2017 Barbara Boethling 
© 2014 Steve Matson 
© 2017 Barbara Boethling |
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Ricinus communis Castor bean, Castorbean
• invasive non-native
Shrub 
© 2017 Henry DiRocco 
© 2020 Aaron Echols 
© 2022 Ron Vanderhoff |
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Rubus laciniatus Cut leaved blackberry, Cutleaf blackberry
non-native
Shrub 
© 2017 Chris Friedel 
© 2021 Donald Burk 
© 2014 John Malpas |
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Rumex dentatus Toothed dock
non-native
Annual, Perennial herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
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Danthonia pilosa Purple awned wallaby grass , Hairy oat grass, Poverty grass
• invasive non-native
Perennial grass 
© 2019 Eric Wrubel 
© 2024 Laura Booth 
© 2018 Sarah Inman |
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Saccharum ravennae Ravennagrass
• invasive non-native
Perennial grass 
© 2011 Ramona Robison 
© 2009 baelin inc 
© 2022 Grace Ferguson |
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Scolymus hispanicus Common goldenthistle, Golden thistle
• invasive non-native
Perennial herb  © 2004 Dr. Amadej Trnkoczy  © 2001 CDFA |
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Senecio jacobaea Stinking willie, Tansy ragwort
• invasive non-native
Perennial herb 
© 2022 Michael Weldon 
© 2022 Michael Weldon 
© 2018 Jennifer Mo |
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Senna multiglandulosa Glandular cassia
non-native
Shrub 
© 2025 David Wolfson 
© 2023 Kathy Fulton 
© 2022 Tracy Pham |
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Sesbania punicea Red sesbania, Rattlebox
• invasive non-native
Shrub 
© 2020 Jennifer Mo 
© 2017 Ellen Uhler 
© 2018 Jennifer Mo |
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Solanum carolinense Carolina horse nettle, Carolina horsenettle
• invasive non-native
Perennial herb 
© 2011 Michael O'Brien  © 2017 Wynn Anderson  © 2001 CDFA |
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Solanum rostratum Buffalo berry, Buffalobur nightshade
non-native
Annual herb 
© 2016 Ron Vanderhoff 
© 2021 Timothy Blank 
© 2019 Ron Vanderhoff |
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Spartina alterniflora Salt water cord grass, Smooth cordgrass
• invasive non-native
Perennial grass 
© 2014 Vertin Alvarez 
© 2014 Vertin Alvarez  © 2009 Zoya Akulova |
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Spartina densiflora Dense flowered cord grass, Denseflower cordgrass
• invasive non-native
Perennial grass  © 2001 Joe DiTomaso  © 2001 Joe DiTomaso  © 2001 Joe DiTomaso |
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Spartina patens Salt meadow cord grass, Saltmeadow cordgrass
• invasive non-native
Perennial grass  © 2000 Joe DiTomaso  © 2011 Steve Matson |
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Stipa brachychaeta Puna needle grass
• invasive non-native
Perennial grass 
© 2020 Adrian Lustre 
© 2020 Adrian Lustre 
© 2020 Adrian Lustre |
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Stipa formicarum Andean tussockgrass
• invasive non-native
Perennial grass 
© 2015 Sarah Minnick 
© 2018 Eric Wrubel 
© 2023 Rachel Suding |
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Nassella tenuissima Mexican feathergrass
• invasive non-native
Perennial grass  © 2015 Neal Kramer  © 2015 Neal Kramer  © 2016 Barbara Boethling |
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Sapium sebiferum Chinese tallowtree
• invasive non-native
Tree 
© 2013 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2013 Ron Vanderhoff |
