logo Calflora  Illustrated Plant List 

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
Acacia paradoxa    Kangaroo thorn
invasive non-native
Shrub

FABACEAE

Acacia paradoxa
2022 Rocky Bajada
Acacia paradoxa
2022 Katherine Stratton
Acacia paradoxa
2022 Katherine Stratton

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

ROSACEAE

Acaena novae-zelandiae
2018 Hayley Ross
Acaena novae-zelandiae
2013 Ramona Robison
Acaena novae-zelandiae
2018 Hayley Ross

Aegilops triuncialis    Barbed goatgrass
invasive non-native
Annual grass

POACEAE

Aegilops triuncialis
2008 Steve Matson
Aegilops triuncialis
2008 Steve Matson
Aegilops triuncialis
2018 Scott Oneto

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

Araujia sericifera    Bladderflower
invasive non-native
Perennial herb, Vine

APOCYNACEAE

Araujia sericifera
2019 Ron Vanderhoff
Araujia sericifera
2021 Jennifer Mo
Araujia sericifera
2020 Ron Vanderhoff

Arctotheca calendula    Cape weed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Arctotheca calendula
2017 Derrick Mathews
Arctotheca calendula
2021 Patrick Hoffman
Arctotheca calendula
2016 Andrea Pickart

Arrhenatherum elatius    Tall oatgrass
non-native
Perennial grass

POACEAE

Arrhenatherum elatius
2020 Doug Allshouse
Arrhenatherum elatius
2021 John Rawlings
Arrhenatherum elatius
2019 Julian Geoghegan

Asparagus asparagoides    African asparagus fern
invasive non-native
Vine

ASPARAGACEAE

Asparagus asparagoides
2023 Cynthia Powell
Asparagus asparagoides
2018 Ron Vanderhoff
Asparagus asparagoides
2022 Joan Miller

Asphodelus fistulosus    Asphodel,  Onionweed
invasive non-native
Perennial herb

ASPHODELACEAE

Asphodelus fistulosus
2017 Steve Matson
Asphodelus fistulosus
2017 Steve Matson
Asphodelus fistulosus
2019 Ron Vanderhoff

Brachypodium sylvaticum    Slender false brome
invasive non-native
Perennial grass

POACEAE

Brachypodium sylvaticum
2018 Ecological Concerns Inc
Brachypodium sylvaticum
2021 SMCP NRM Intern
Brachypodium sylvaticum
2020 John Rawlings

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

SCROPHULARIACEAE

Buddleja davidii
2021 Ron Vanderhoff
Buddleja davidii
2021 Ron Vanderhoff
Buddleja davidii
2021 Ron Vanderhoff

Carduus acanthoides    Plumeless thistle,  Spiny plumeless thistle
invasive non-native
Perennial herb

ASTERACEAE

Carduus acanthoides
2016 Catherine Talbot
Carduus acanthoides
2016 Catherine Talbot
Carduus acanthoides
2015 Catherine Talbot

Carex pendula    Hanging sedge
invasive non-native
Perennial grasslike herb

CYPERACEAE

Carex pendula
2015 Andrea Williams
Carex pendula
2022 Mitchell Blake
Carex pendula
2011 Michael Perlmutter

Carthamus leucocaulos    White stemmed distaff thistle,  Whitestem distaff thistle
invasive non-native
Annual herb

ASTERACEAE

Carthamus leucocaulos
2001 CDFA
Carthamus leucocaulos
2001 CDFA

Centaurea diffusa    Diffuse knapweed,  White knapweed
invasive non-native
Perennial herb

ASTERACEAE

Centaurea diffusa
2020 David Greenberger
Centaurea diffusa
2022 Bob Sweatt
Centaurea diffusa
2019 Catherine Talbot

Centaurea iberica    Iberian knapweed
invasive non-native
Perennial herb

ASTERACEAE

Centaurea iberica
2016 Don Thomas
Centaurea iberica
2001 CDFA
Centaurea iberica
2001 CDFA

Centaurea maculosa    Spotted knapweed
invasive non-native
Perennial herb

ASTERACEAE

Centaurea maculosa
2021 Patrick Hoffman
Centaurea maculosa
2022 Patrick Hoffman
Centaurea maculosa
2019 Amanda Mills

Centaurea sulphurea    Sicilian star thistle,  Sulphur knapweed
invasive non-native
Annual herb

ASTERACEAE

Centaurea sulphurea
2019 Stacie Sherman
Centaurea sulphurea
2017 Stacie Sherman
Centaurea sulphurea
2009 Ramona Robison

Cestrum parqui    Chilean jessamine
invasive non-native
Tree

SOLANACEAE

Cestrum parqui
2011 Michael Perlmutter
Cestrum parqui
2011 Michael Perlmutter
Cestrum parqui
2011 Michael Perlmutter

Chondrilla juncea    Hogbite,  Skeleton weed
invasive non-native
Perennial herb

ASTERACEAE

Chondrilla juncea
2021 George Williams
Chondrilla juncea
2021 Julia Kosowitz
Chondrilla juncea
2021 Bob Sweatt

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

ASTERACEAE

Cirsium undulatum
2020 Chris McDonald
Cirsium undulatum
2020 Chris McDonald
Cirsium undulatum
2015 Richard Spellenberg

Coprosma repens    Creeping mirrorplant
non-native
Shrub

RUBIACEAE

Coprosma repens
2015 Richard Chasey
Coprosma repens
2009 Dean Taylor
Coprosma repens
2011 Daniel Gluesenkamp

Crupina vulgaris    Bearded creeper,  Common crupina
invasive non-native
Annual herb

ASTERACEAE

Crupina vulgaris
2023 Norm Macdonald
Crupina vulgaris
2012 Ramona Robison
Crupina vulgaris
2015 Daniel Lay

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

CONVOLVULACEAE

Cuscuta japonica
2014 Michael Perlmutter
Cuscuta japonica
2014 Michael Perlmutter
Cuscuta japonica
2009 Barry Rice

Cytisus striatus    Portuguese broom,  Striated broom
invasive non-native
Shrub

FABACEAE

Cytisus striatus
2019 Andy Jones
Cytisus striatus
2021 Cynthia Powell
Cytisus striatus
2021 Cynthia Powell

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

BORAGINACEAE

Echium plantagineum
2020 John Rawlings
Echium plantagineum
2019 Ken Hickman
Echium plantagineum
2011 Daniel Gluesenkamp

Euphorbia terracina    carnation spurge,  Geraldton carnation weed
invasive non-native
Perennial herb

EUPHORBIACEAE

Euphorbia terracina
2021 Ron Vanderhoff
Euphorbia terracina
2021 Ron Vanderhoff
Euphorbia terracina
2017 Steve Matson

Euphorbia esula    Leafy spurge
invasive non-native
Perennial herb

EUPHORBIACEAE

Euphorbia esula
2019 Matt Weston
Euphorbia esula
2019 Matt Weston
Euphorbia esula
2015 Dean Kelch

Fallopia baldschuanica    Bukhara fleeceflower
non-native
Vine

POLYGONACEAE

Fallopia baldschuanica
2014 Michael Chasse
Fallopia baldschuanica
2021 Jennifer Mo
Fallopia baldschuanica
2016 Michael Chasse

Fallopia japonica    Japanese knotweed
invasive non-native
Perennial herb

POLYGONACEAE

Fallopia japonica
2021 Margot Cunningham
Fallopia japonica
2019 John Malpas
Fallopia japonica
2019 John Malpas

Festuca pratensis    Meadow fescue
non-native
Perennial grass

POACEAE

Festuca pratensis
2023 Elliot Gunnison
Festuca pratensis
2012 Al Keuter
Festuca pratensis
2012 Al Keuter

Gazania linearis    Gazania,  Treasure flower,  Treasureflower
invasive non-native
Perennial herb

ASTERACEAE

Gazania linearis
2016 Barbara Boethling
Gazania linearis
2018 Ron Vanderhoff
Gazania linearis
2018 Ron Vanderhoff

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

GUNNERACEAE

Gunnera tinctoria
2011 Michael Perlmutter
Gunnera tinctoria
2010 Zoya Akulova
Gunnera tinctoria
2011 Michael Perlmutter

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

FABACEAE

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

Helichrysum petiolare    Licorice plant
invasive non-native
Shrub, Vine

ASTERACEAE

Helichrysum petiolare
2021 Elliot Gunnison
Helichrysum petiolare
2022 Mike Russler
Helichrysum petiolare
2022 Mike Russler

Hypericum canariense    Canary island st. johnswort
invasive non-native
Shrub

HYPERICACEAE

Hypericum canariense
2019 Patrick Furtado
Hypericum canariense
2019 Patrick Furtado
Hypericum canariense
2015 Leah Bedoian

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

BRASSICACEAE

Isatis tinctoria
2019 Dana York
Isatis tinctoria
2019 Julie Kierstead Nelson
Isatis tinctoria
2021 Steve Matson

Lepidium appelianum    Hairy whitetop
invasive non-native
Perennial herb

BRASSICACEAE

Lepidium appelianum
2019 Richard Spjut
Lepidium appelianum
2017 Leif Johnson
Lepidium appelianum
2019 Richard Spjut

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

BRASSICACEAE

Lepidium campestre
2020 Bob Sweatt
Lepidium campestre
2020 Bob Sweatt
Lepidium campestre
2020 Bob Sweatt

Ligustrum lucidum    Glossy privet
invasive non-native
Tree, Shrub

OLEACEAE

Ligustrum lucidum
2021 Alex Nikolaou
Ligustrum lucidum
2021 Ron Vanderhoff
Ligustrum lucidum
2017 Ron Vanderhoff

Ligustrum ovalifolium    California privet
non-native
Tree, Shrub

OLEACEAE

Ligustrum ovalifolium
2018 Abbot Chambers
Ligustrum ovalifolium
2020 Diana Wahl
Ligustrum ovalifolium
2013 Ramona Robison

Limonium ramosissimum    Algerian sealavender
non-native
Perennial herb

PLUMBAGINACEAE

Limonium ramosissimum
2017 Ron Vanderhoff
Limonium ramosissimum
2015 Ron Vanderhoff
Limonium ramosissimum
2018 Ron Vanderhoff L. durusculum LEFT. L. ramosissimum RIGHT.

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

PLANTAGINACEAE

Linaria genistifolia ssp. dalmatica
2021 Dennis Diaz
Linaria genistifolia ssp. dalmatica
2016 Phil Zortman
Linaria genistifolia ssp. dalmatica
2019 Caleb Cole

Linaria vulgaris    Butter and eggs
invasive non-native
Perennial herb

PLANTAGINACEAE

Linaria vulgaris
2020 Bob Sweatt
Linaria vulgaris
2020 Bob Sweatt
Linaria vulgaris
2019 Bob Sweatt

Lonicera japonica    Japanese honeysuckle
non-native
Vine, Shrub

CAPRIFOLIACEAE

Lonicera japonica
2018 michelle peruzzi
Lonicera japonica
2022 Andy Ford
Lonicera japonica
2016 Keir Morse

Lythrum salicaria    Purple loosestrife
invasive non-native
Perennial herb

LYTHRACEAE

Lythrum salicaria
2021 David popp
Lythrum salicaria
2015 Jean B Henney
Lythrum salicaria
2020 Katie Rian

Oenothera sinuosa    Wavy-leaved gaura
non-native
Perennial herb

ONAGRACEAE

Oenothera sinuosa
2009 Vince Scheidt
Oenothera sinuosa
2001 CDFA
Oenothera sinuosa
2001 CDFA

Oenothera xenogaura    Drummond's gaura
non-native
Perennial herb

ONAGRACEAE

Oenothera xenogaura
2016 Ron Vanderhoff
Oenothera xenogaura
2018 Ron Vanderhoff
Oenothera xenogaura
2018 Ron Vanderhoff

Onopordum acanthium    Scotch cottonthistle
invasive non-native
Perennial herb

ASTERACEAE

Onopordum acanthium
2021 Diana Wing
Onopordum acanthium
2019 Catherine Talbot
Onopordum acanthium
2018 Joe Woods

Onopordum Illyricum    Illyrian cottonthistle,  Illyrian thistle
invasive non-native
Annual, Biennial herb

ASTERACEAE

Onopordum Illyricum
2021 Nancy Barrera
Onopordum Illyricum
2021 Nancy Barrera
Onopordum Illyricum
2021 Nancy Barrera

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

POACEAE

Paspalum urvillei
2021 Jennifer Mo
Paspalum urvillei
2021 Jennifer Mo
Paspalum urvillei
2022 Jennifer Mo

Persicaria wallichii    Himalayan knotweed
invasive non-native
Perennial herb

POLYGONACEAE

Persicaria wallichii
2017 Redwood Community Action Agency
Persicaria wallichii
2019 David Juliano
Persicaria wallichii
2014 Ramona Robison

Pyracantha coccinea    Scarlet firethorn
invasive non-native
Shrub

ROSACEAE

Pyracantha coccinea
2019 Randy Huey
Pyracantha coccinea
2005 Luigi Rignanese
Pyracantha coccinea
2005 Luigi Rignanese

Pyracantha crenulata    Nepalese firethorn
invasive non-native
Shrub

ROSACEAE

Pyracantha crenulata
2022 Morgan Stickrod
Pyracantha crenulata
2022 Morgan Stickrod
Pyracantha crenulata
2018 Joe DiTomaso

Acroptilon repens    Russian knapweed
non-native
Perennial herb

ASTERACEAE

Acroptilon repens
2017 Barbara Boethling
Acroptilon repens
2014 Steve Matson
Acroptilon repens
2017 Barbara Boethling

Ricinus communis    Castor bean,  Castorbean
invasive non-native
Shrub

EUPHORBIACEAE

Ricinus communis
2017 Henry DiRocco
Ricinus communis
2020 Aaron Echols
Ricinus communis
2022 Ron Vanderhoff

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

ROSACEAE

Rubus laciniatus
2017 Chris Friedel
Rubus laciniatus
2021 Donald Burk
Rubus laciniatus
2014 John Malpas

Rumex dentatus    Toothed dock
non-native
Annual, Perennial herb

POLYGONACEAE

Rumex dentatus
2021 Ron Vanderhoff
Rumex dentatus
2021 Ron Vanderhoff
Rumex dentatus
2021 Ron Vanderhoff

Danthonia pilosa    Purple awned wallaby grass ,  Hairy oat grass,  Poverty grass
invasive non-native
Perennial grass

POACEAE

Danthonia pilosa
2019 Eric Wrubel
Danthonia pilosa
2014 Alex Beakes
Danthonia pilosa
2018 Sarah Inman

Saccharum ravennae    Ravennagrass
invasive non-native
Perennial grass

POACEAE

Saccharum ravennae
2011 Ramona Robison
Saccharum ravennae
2009 baelin inc
Saccharum ravennae
2022 Grace Ferguson

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

ASTERACEAE

Scolymus hispanicus
2004 Dr. Amadej Trnkoczy
Scolymus hispanicus
2001 CDFA

Senecio jacobaea    Stinking willie,  Tansy ragwort
invasive non-native
Perennial herb

ASTERACEAE

Senecio jacobaea
2022 Michael Weldon
Senecio jacobaea
2022 Michael Weldon
Senecio jacobaea
2018 Jennifer Mo

Senna multiglandulosa    Glandular cassia
non-native
Shrub

FABACEAE

Senna multiglandulosa
2011 Neal Kramer
Senna multiglandulosa
2014 Wynn Anderson
Senna multiglandulosa
2011 Neal Kramer

Sesbania punicea    Red sesbania,  Rattlebox
invasive non-native
Shrub

FABACEAE

Sesbania punicea
2020 Jennifer Mo
Sesbania punicea
2017 Ellen Uhler
Sesbania punicea
2021 HARDEEP BAINS

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

SOLANACEAE

Solanum carolinense
2011 Michael O'Brien
Solanum carolinense
2017 Wynn Anderson
Solanum carolinense
2001 CDFA

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

SOLANACEAE

Solanum rostratum
2016 Ron Vanderhoff
Solanum rostratum
2021 Timothy Blank
Solanum rostratum
2019 Ron Vanderhoff

Spartina alterniflora    Salt water cord grass,  Smooth cordgrass
invasive non-native
Perennial grass

POACEAE

Spartina alterniflora
2014 Vertin Alvarez
Spartina alterniflora
2014 Vertin Alvarez
Spartina alterniflora
2009 Zoya Akulova

Spartina densiflora    Dense flowered cord grass,  Denseflower cordgrass
invasive non-native
Perennial grass

POACEAE

Spartina densiflora
2001 Joe DiTomaso
Spartina densiflora
2001 Joe DiTomaso
Spartina densiflora
2001 Joe DiTomaso

Spartina patens    Salt meadow cord grass,  Saltmeadow cordgrass
invasive non-native
Perennial grass

POACEAE

Spartina patens
2000 Joe DiTomaso
Spartina patens
2011 Steve Matson

Stipa brachychaeta    Puna needle grass
invasive non-native
Perennial grass

POACEAE

Stipa brachychaeta
2020 Adrian Lustre
Stipa brachychaeta
2001 CDFA
Stipa brachychaeta
2020 Adrian Lustre

Stipa formicarum    Andean tussockgrass
invasive non-native
Perennial grass

POACEAE

Stipa formicarum
2015 Sarah Minnick
Stipa formicarum
2018 Eric Wrubel
Stipa formicarum
2011 Eric Wrubel, NPS

Nassella tenuissima    Mexican feathergrass
invasive non-native
Perennial grass

POACEAE

Nassella tenuissima
2015 Neal Kramer
Nassella tenuissima
2015 Neal Kramer
Nassella tenuissima
2016 Barbara Boethling

Sapium sebiferum    Chinese tallowtree
invasive non-native
Tree

EUPHORBIACEAE

Sapium sebiferum
2013 Ron Vanderhoff
Sapium sebiferum
2019 Ron Vanderhoff
Sapium sebiferum
2013 Ron Vanderhoff