logo Calflora  Illustrated Plant List 

Priority 1-3 species.
56 PLANTS
Ailanthus altissima    Ailanthus,  Tree of heaven
invasive non-native
Tree

SIMAROUBACEAE

Ailanthus altissima
2022 Jenny Gossett
Ailanthus altissima
2022 Jenny Gossett
Ailanthus altissima
2020 Julie A. Kierstead

Amaranthus albus    Pigweed amaranth,  Tumbleweed
non-native
Annual herb

AMARANTHACEAE

Amaranthus albus
2014 Steve Matson
Amaranthus albus
2014 Steve Matson
Amaranthus albus
2018 Ron Vanderhoff

Arundo donax    Giant reed
invasive non-native
Perennial grass

POACEAE

Arundo donax
2013 Miriam Sachs Martin
Arundo donax
2020 Jennifer Mo
Arundo donax
2018 Ron Vanderhoff

Brassica nigra    Black mustard
invasive non-native
Annual herb

BRASSICACEAE

Brassica nigra
2021 Ron Vanderhoff
Brassica nigra
2019 Ron Vanderhoff
Brassica nigra
2019 Ron Vanderhoff

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

BRASSICACEAE

Brassica rapa
2024 David Wolfson
Brassica rapa
2021 Diane Etchison
Brassica rapa
2018 Angelique Herman

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

POACEAE

Bromus tectorum
2022 Ron Vanderhoff
Bromus tectorum
2022 Ron Vanderhoff
Bromus tectorum
2022 Ron Vanderhoff

Carduus pycnocephalus    Italian thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus pycnocephalus
2019 Gary McDonald
Carduus pycnocephalus
2023 Diana Wahl
Carduus pycnocephalus
2017 Gary McDonald

Carduus tenuiflorus    Italian thistle,  Slender flowered thistle,  Winged plumeless thistle
invasive non-native
Annual herb

ASTERACEAE

Carduus tenuiflorus
2018 Gary McDonald
Carduus tenuiflorus
2018 Gary McDonald
Carduus tenuiflorus
2018 Gary McDonald

Centaurea benedicta    Blessed thistle
non-native
Annual herb

ASTERACEAE

Centaurea benedicta
2019 Kevin Mason
Centaurea benedicta
2021 Aaron Echols
Centaurea benedicta
2020 Diane Etchison

Centaurea melitensis    Maltese star thistle,  Napa star thistle,  Tocalote
invasive non-native
Annual herb

ASTERACEAE

Centaurea melitensis
2019 Ron Vanderhoff
Centaurea melitensis
2020 Ron Vanderhoff
Centaurea melitensis
2020 Laura Anna Arellano

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

ASTERACEAE

Centaurea solstitialis
2022 Cynthia Powell
Centaurea solstitialis
2019 Arlee Montalvo
Centaurea solstitialis
2022 Mary Herr

Cirsium vulgare    Bull thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium vulgare
2017 James Bailey
Cirsium vulgare
2020 Bob Sweatt
Cirsium vulgare
2020 Bob Sweatt

Conium maculatum    Poison hemlock
invasive non-native
Perennial herb

APIACEAE

Conium maculatum
2019 James Bailey
Conium maculatum
2013 Toni Corelli
Conium maculatum
2016 Cynthia Powell

Cotula coronopifolia    Brass buttons,  Common brassbuttons
invasive non-native
Perennial herb

ASTERACEAE

Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2022 Steve Matson
Cotula coronopifolia
2018 Adam Chasey

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

POACEAE

Crypsis schoenoides
2023 Ron Vanderhoff
Crypsis schoenoides
2018 Ron Vanderhoff
Crypsis schoenoides
2019 Ron Vanderhoff

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

POACEAE

Cynodon dactylon
2021 Ron Vanderhoff
Cynodon dactylon
2020 Ron Vanderhoff
Cynodon dactylon
2021 Ron Vanderhoff

Cyperus difformis    Variable flatsedge
non-native
Annual grasslike herb

CYPERACEAE

Cyperus difformis
2022 Ron Vanderhoff
Cyperus difformis
2017 Ron Vanderhoff
Cyperus difformis
2021 Donald Burk

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

POACEAE

Dactylis glomerata
2018 Jennifer Mo
Dactylis glomerata
2020 Jim Richards
Dactylis glomerata
2017 Gary McDonald

Dittrichia graveolens    Stinkwort
invasive non-native
Annual herb

ASTERACEAE

Dittrichia graveolens
2017 Bob Huttar
Dittrichia graveolens
2019 Ron Vanderhoff
Dittrichia graveolens
2019 Ron Vanderhoff

Dysphania ambrosioides    Mexican tea
non-native
Annual, Perennial herb

CHENOPODIACEAE

Dysphania ambrosioides
2020 Ron Vanderhoff
Dysphania ambrosioides
2018 Ron Vanderhoff
Dysphania ambrosioides
2020 Ron Vanderhoff

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

POACEAE

Elymus caput-medusae
2023 Ron Vanderhoff
Elymus caput-medusae
2019 Jennifer Mo
Elymus caput-medusae
2011 Steve Matson

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

POACEAE

Festuca perennis
2019 Ron Vanderhoff
Festuca perennis
2017 Gary McDonald
Festuca perennis
2021 Ron Vanderhoff

Festuca temulenta    Darnel, tares
non-native
Annual grass

POACEAE

Festuca temulenta
2016 Spade Natural Resources Consulting
Festuca temulenta
2020 David popp
Festuca temulenta
2019 Stephany Dery

Helminthotheca echioides    Bristly ox-tongue
invasive non-native
Annual, Perennial herb

ASTERACEAE

Helminthotheca echioides
2016 Hayley Ross
Helminthotheca echioides
2019 Rachelle Gray
Helminthotheca echioides
2012 Elizabeth Brusati

Hirschfeldia incana    Mediterranean hoary mustard,  Short podded mustard,  Summer mustard
invasive non-native
Perennial herb

BRASSICACEAE

Hirschfeldia incana
2017 Gary McDonald
Hirschfeldia incana
2017 Gary McDonald
Hirschfeldia incana
2022 Ron Vanderhoff

Iris pseudacorus    Horticultural iris,  Paleyellow iris,  Yellowflag iris
invasive non-native
Perennial herb

IRIDACEAE

Iris pseudacorus
2020 Ron Vanderhoff
Iris pseudacorus
2024 Ron Vanderhoff
Iris pseudacorus
2017 Nick Graver

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

ASTERACEAE

Lactuca serriola
2017 Gary McDonald
Lactuca serriola
2017 Gary McDonald
Lactuca serriola
2017 Gary McDonald

Lepidium latifolium    Broad leaved pepper grass,  Broadleaved pepperweed,  Perennial pepperweed
invasive non-native
Perennial herb

BRASSICACEAE

Lepidium latifolium
2022 Donald Burk
Lepidium latifolium
2020 Ron Vanderhoff
Lepidium latifolium
2021 Michelle Karle

Malva parviflora    Cheeseweed mallow
non-native
Annual herb

MALVACEAE

Malva parviflora
2022 Mike Russler
Malva parviflora
2022 Donald Burk
Malva parviflora
2022 Mike Russler

Marrubium vulgare    White horehound
invasive non-native
Perennial herb

LAMIACEAE

Marrubium vulgare
2013 Gary McDonald
Marrubium vulgare
2015 Diane Etchison
Marrubium vulgare
2018 Nancy Hamlett

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

FABACEAE

Melilotus alba
2020 Bob Sweatt
Melilotus alba
2020 Bob Sweatt
Melilotus alba
2020 Bob Sweatt

non-native
Perennial herb

LAMIACEAE

Mentha spicata var. spicata
2022 Donald Burk
Mentha spicata var. spicata
2022 Donald Burk
Mentha spicata var. spicata
2023 Ron Vanderhoff

Mentha Xpiperita    Peppermint
non-native
Perennial herb

LAMIACEAE

Mentha Xpiperita
2019 Ron Vanderhoff
Mentha Xpiperita
2019 Ron Vanderhoff
Mentha Xpiperita
1995 Saint Mary's College of California

Nicotiana glauca    Tree tobacco
invasive non-native
Tree, Shrub

SOLANACEAE

Nicotiana glauca
2019 Jean B Henney
Nicotiana glauca
2017 Steve Matson
Nicotiana glauca
2017 Steve Matson

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

POACEAE

Phalaris aquatica
2018 Thomas Reyes
Phalaris aquatica
2021 Lenihan Mazur
Phalaris aquatica
2022 Lenihan Mazur

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

PLANTAGINACEAE

Plantago lanceolata
2017 Gary McDonald
Plantago lanceolata
2019 Joe Engelbrecht
Plantago lanceolata
2021 Ken Lunders

Poa bulbosa    Bulbous blue grass,  Bulbous bluegrass
non-native
Perennial grass

POACEAE

Poa bulbosa
2020 Julie A. Kierstead
Poa bulbosa
2019 Stephany Dery
Poa bulbosa
2020 Thomas Reyes

Polygonum aviculare ssp. depressum    Prostrate knotweed
non-native
Annual, Perennial herb

POLYGONACEAE

Polygonum aviculare ssp. depressum
2016 Barbara Boethling
Polygonum aviculare ssp. depressum
2021 Ron Vanderhoff
Polygonum aviculare ssp. depressum
2014 Richard Chasey

Raphanus sativus    Cultivated radish,  Jointed charlock,  Wild radish
invasive non-native
Annual, Biennial herb

BRASSICACEAE

Raphanus sativus
2017 Lisa Miller
Raphanus sativus
2020 Ron Vanderhoff
Raphanus sativus
2023 Julia Markey

Acroptilon repens    Russian knapweed
non-native
Perennial herb

ASTERACEAE

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

Rubus armeniacus    Himalayan blackberry,  black berry,  Armenian blackberry
invasive non-native
Shrub

ROSACEAE

Rubus armeniacus
2014 James Gonsman
Rubus armeniacus
2020 Julie A. Kierstead
Rubus armeniacus
2018 Richard Spjut

Rumex acetosella    Common sheep sorrel
invasive non-native
Perennial herb

POLYGONACEAE

Rumex acetosella
2017 Gary McDonald
Rumex acetosella
2008 Steve Matson
Rumex acetosella
2019 Patrick Furtado

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

POLYGONACEAE

Rumex crispus
2018 Tim Lewis
Rumex crispus
2019 Diane Etchison
Rumex crispus
2023 Ron Vanderhoff

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

CHENOPODIACEAE

Salsola tragus
2017 Ron Vanderhoff
Salsola tragus
2018 Angelique Herman
Salsola tragus
2023 Cynthia Powell

Schismus arabicus    Arabian schismus,  Mediterranean grass
invasive non-native
Annual grass

POACEAE

Schismus arabicus
2020 Ron Vanderhoff
Schismus arabicus
2017 James Bailey
Schismus arabicus
2022 Katherine Stratton

Silybum marianum    Blessed milkthistle,  Milk thistle
invasive non-native
Annual, Perennial herb

ASTERACEAE

Silybum marianum
2020 Nancy Hamlett
Silybum marianum
2019 Marisa Persaud
Silybum marianum
2018 Angelique Herman

Stipa miliacea var. miliacea    Smilo grass
invasive non-native
Perennial grass

POACEAE

Stipa miliacea var. miliacea
2022 Donald Burk
Stipa miliacea var. miliacea
2009 Keir Morse
Stipa miliacea var. miliacea
2022 Donald Burk

Tamarix ramosissima    Saltcedar,  Tamarisk
invasive non-native
Tree, Shrub

TAMARICACEAE

Tamarix ramosissima
2020 Ron Vanderhoff
Tamarix ramosissima
2017 Barbara Boethling
Tamarix ramosissima
2022 Ron Vanderhoff

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

ASTERACEAE

Tragopogon dubius
2023 Ken Lunders
Tragopogon dubius
2020 Bob Sweatt
Tragopogon dubius
2019 Liz Block

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

ZYGOPHYLLACEAE

Tribulus terrestris
2015 Steve Matson
Tribulus terrestris
2020 Ron Vanderhoff
Tribulus terrestris
2020 Maura Hay

Trifolium hirtum    Rose clover
invasive non-native
Annual herb

FABACEAE

Trifolium hirtum
2011 Steve Matson
Trifolium hirtum
2011 Steve Matson
Trifolium hirtum
2011 Steve Matson

Verbascum blattaria    Moth mullein
non-native
Perennial herb

SCROPHULARIACEAE

Verbascum blattaria
2023 Alaine Arslan
Verbascum blattaria
2019 Marisa Persaud
Verbascum blattaria
2019 Patrick Furtado

Verbascum thapsus    Common mullein,  Woolly mullein
invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbascum thapsus
2021 R.A. Chasey
Verbascum thapsus
2020 Kim Cabrera
Verbascum thapsus
2019 Marisa Persaud

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

PLANTAGINACEAE

Veronica persica
2019 Patrick Furtado
Veronica persica
2022 Bob Sweatt
Veronica persica
2022 Ron Vanderhoff

Vinca major    Bigleaf periwinkle,  Greater periwinkle,  Vinca
invasive non-native
Perennial herb

APOCYNACEAE

Vinca major
2020 Julia Markey
Vinca major
2022 Ron Vanderhoff
Vinca major
2021 Ron Vanderhoff

Xanthium spinosum    Spiny clotbur,  Spiny cockleburr
non-native
Annual herb

ASTERACEAE

Xanthium spinosum
2017 B.J. Dion
Xanthium spinosum
2021 Lynn Overtree
Xanthium spinosum
2017 B.J. Dion