logo Calflora  Illustrated Plant List 

High priority invasive plant species for early detection in the Golden Gate National Recreation Area (GGNRA). High priority species are typically not widespread in GGNRA and/or are feasible to control in many places.
111 PLANTS
Acacia melanoxylon    Blackwood acacia
invasive non-native
Tree

FABACEAE

Acacia melanoxylon
© 2022 Julian Geoghegan
Acacia melanoxylon
© 2019 Julian Geoghegan
Acacia melanoxylon
© 2023 Jennifer Mo

Acacia paradoxa    Kangaroo thorn
invasive non-native
Shrub

FABACEAE

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

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

Ageratina adenophora    Sticky snakeroot,  Thoroughwort
invasive non-native
Perennial herb

ASTERACEAE

Ageratina adenophora
© 2019 Ron Vanderhoff
Ageratina adenophora
© 2017 Keir Morse
Ageratina adenophora
© 2021 Heather Brady DeQuincy

Agrostis avenacea    Pacific bentgrass
invasive non-native
Perennial grass

POACEAE

Agrostis avenacea
© 2021 John Rawlings
Agrostis avenacea
© 2016 Andrew Longman
Agrostis avenacea
© 2022 Donald Burk

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

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

FABACEAE

Albizia lophantha
© 2020 Ron Vanderhoff
Albizia lophantha
© 2020 Ron Vanderhoff
Albizia lophantha
© 2020 Ron Vanderhoff

Allium vineale    Vineyard onion,  Wild garlic
invasive non-native
Perennial herb (bulb)

ALLIACEAE

Allium vineale
© 2017 dave hood
Allium vineale
© 2022 Emily R. Allen
Allium vineale
© 2017 dave hood

Ammophila arenaria    Beachgrass,  European beach grass,  European beachgrass
invasive non-native
Perennial grass

POACEAE

Ammophila arenaria
© 2016 Steve Matson
Ammophila arenaria
© 2016 Steve Matson
Ammophila arenaria
© 2016 Steve Matson

Ammophila breviligulata    American beach grass,  American beachgrass
non-native
Perennial grass

POACEAE

Ammophila breviligulata
© 2014 Trent M. Draper
Ammophila breviligulata
© 2014 Trent M. Draper
Ammophila breviligulata
© 2014 Trent M. Draper

Anthoxanthum odoratum    Sweet vernal grass,  Sweet vernalgrass
invasive non-native
Annual, Perennial grass

POACEAE

Anthoxanthum odoratum
© 2017 Steve Matson
Anthoxanthum odoratum
© 2017 Steve Matson
Anthoxanthum odoratum
© 2017 Steve Matson

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

AIZOACEAE

Aptenia cordifolia
© 2022 Ron Vanderhoff
Aptenia cordifolia
© 2022 Ron Vanderhoff
Aptenia cordifolia
© 2022 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

Arctotheca prostrata    prostrate cape weed,  creeping capeweed
invasive non-native
Annual, Perennial herb

ASTERACEAE

Arctotheca prostrata
© 2024 David Wolfson
Arctotheca prostrata
© 2020 Lenihan Mazur
Arctotheca prostrata
© 2021 David Wolfson

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

Berberis darwinii    Darwin's berberis
invasive non-native
Shrub

BERBERIDACEAE

Berberis darwinii
© 2018 Abbot Chambers
Berberis darwinii
© 2016 Greg O'Connell
Berberis darwinii
© 2022 David Strauch

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

invasive non-native
Annual grass

POACEAE

Bromus madritensis ssp. rubens
© 2015 Chris Jaster
Bromus madritensis ssp. rubens
© 2015 jamie smith
Bromus madritensis ssp. rubens
© 2018 Gary McDonald

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

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

Cakile maritima    European searocket,  Sea rocket
invasive non-native
Annual herb

BRASSICACEAE

Cakile maritima
© 2019 Diane Etchison
Cakile maritima
© 2021 R.A. Chasey
Cakile maritima
© 2019 Diane Etchison

Calendula arvensis    Field marigold
non-native
Annual herb

ASTERACEAE

Calendula arvensis
© 2017 MCOSD EDRR
Calendula arvensis
© 2018 David Wolfson
Calendula arvensis
© 2019 Stephany Dery

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
© 2021 R.A. Chasey

Carpobrotus chilensis    Sea fig
invasive non-native
Perennial herb

AIZOACEAE

Carpobrotus chilensis
© 2018 Nicole Leatherman
Carpobrotus chilensis
© 2016 Steve Matson
Carpobrotus chilensis
© 2021 Cynthia Powell

Carthamus lanatus    Woolly distaff thistle
invasive non-native
Annual herb

ASTERACEAE

Carthamus lanatus
© 2019 Lenihan Mazur
Carthamus lanatus
© 2019 Danielle Carney
Carthamus lanatus
© 2019 Danielle Carney

Centaurea calcitrapa    Purple star thistle,  Red star thistle
invasive non-native
Annual, Perennial herb

ASTERACEAE

Centaurea calcitrapa
© 2021 R.A. Chasey
Centaurea calcitrapa
© 2019 MCOSD EDRR
Centaurea calcitrapa
© 2022 R.A. Chasey

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

Cestrum parqui    Chilean jessamine
invasive non-native
Tree

SOLANACEAE

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

Cirsium arvense    Canada thistle
invasive non-native
Perennial herb

ASTERACEAE

Cirsium arvense
© 2012 Michael Mitchell
Cirsium arvense
© 2012 Michael Mitchell
Cirsium arvense
© 2022 Donald Burk

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

RANUNCULACEAE

Clematis vitalba
© 2015 ken moore
Clematis vitalba
© 2019 Cynthia Powell
Clematis vitalba
© 2015 Ellen Uhler

Conicosia pugioniformis    False ice plant,  Narrow leaved iceplant
invasive non-native
Perennial herb

AIZOACEAE

Conicosia pugioniformis
© 2022 Mike Russler
Conicosia pugioniformis
© 2022 Mike Russler
Conicosia pugioniformis
© 2022 Mike Russler

Cortaderia selloana    Uruguayan pampas grass
invasive non-native
Perennial grass

POACEAE

Cortaderia selloana
© 2023 Cynthia Powell
Cortaderia selloana
© 2023 Randall English
Cortaderia selloana
© 2022 Ron Vanderhoff

Crataegus monogyna    Hawthorn
invasive non-native
Shrub

ROSACEAE

Crataegus monogyna
© 2022 Emily R. Allen
Crataegus monogyna
© 2021 Isaac Kreger
Crataegus monogyna
© 2021 Sherry Adams

Cynara cardunculus    Artichoke thistle,  Cardoon
invasive non-native
Perennial herb

ASTERACEAE

Cynara cardunculus
© 2021 R.A. Chasey
Cynara cardunculus
© 2022 Ron Vanderhoff
Cynara cardunculus
© 2022 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

Cytisus scoparius    Scotch broom,  Scotchbroom
invasive non-native
Shrub

FABACEAE

Cytisus scoparius
© 2016 Steve Matson
Cytisus scoparius
© 2016 Steve Matson
Cytisus scoparius
© 2016 Steve Matson

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

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

Datura stramonium    Jimson weed,  Jimsonweed
non-native
Annual herb

SOLANACEAE

Datura stramonium
© 2011 Steve Matson
Datura stramonium
© 2011 Steve Matson
Datura stramonium
© 2020 Ron Vanderhoff

Delairea odorata    Cape ivy
invasive non-native
Perennial herb

ASTERACEAE

Delairea odorata
© 2019 Ron Vanderhoff
Delairea odorata
© 2019 Ron Vanderhoff
Delairea odorata
© 2019 Ron Vanderhoff

Digitalis purpurea    Purple foxglove
invasive non-native
Perennial herb

PLANTAGINACEAE

Digitalis purpurea
© 2016 Steve Matson
Digitalis purpurea
© 2016 Steve Matson
Digitalis purpurea
© 2016 Steve Matson

Dipsacus fullonum    Fuller's teasel,  Fullers' teasel,  Wild teasel
invasive non-native
Perennial herb

DIPSACACEAE

Dipsacus fullonum
© 2022 Morgan Stickrod
Dipsacus fullonum
© 2018 Alex Spencer
Dipsacus fullonum
© 2021 Amber Bedgood

Dittrichia graveolens    Stinkwort
invasive non-native
Annual herb

ASTERACEAE

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

Drosanthemum floribundum    Ice plant,  Rosy ice plant,  Showy dewflower
non-native
Perennial herb

AIZOACEAE

Drosanthemum floribundum
© 2019 Michelle Karle
Drosanthemum floribundum
© 2019 David Wolfson
Drosanthemum floribundum
© 2015 Tori Bohlen

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

Ehrharta calycina    Perennial veldt grass,  Perennial veldtgrass
invasive non-native
Perennial grass

POACEAE

Ehrharta calycina
© 2020 David Greenberger
Ehrharta calycina
© 2019 Ron Vanderhoff
Ehrharta calycina
© 2018 Ron Vanderhoff

Eichhornia crassipes    Common water hyacinth
invasive non-native
Perennial herb

PONTEDERIACEAE

Eichhornia crassipes
© 2021 Mike Russler
Eichhornia crassipes
© 2018 Rachelle Gray
Eichhornia crassipes
© 2020 Ron Vanderhoff

Eucalyptus globulus    Blue gum,  Tasmanian bluegum
invasive non-native
Tree

MYRTACEAE

Eucalyptus globulus
© 2022 Ron Vanderhoff
Eucalyptus globulus
© 2022 Ron Vanderhoff
Eucalyptus globulus
© 2022 Ron Vanderhoff

Euphorbia oblongata    Eggleaf spurge
invasive non-native
Perennial herb

EUPHORBIACEAE

Euphorbia oblongata
© 2017 Gary McDonald
Euphorbia oblongata
© 2019 Randy Huey
Euphorbia oblongata
© 2017 Gary McDonald

Fallopia japonica    Japanese knotweed
invasive non-native
Perennial herb

POLYGONACEAE

Fallopia japonica
© 2021 Margot Cunningham
Fallopia japonica
© 2024 Jacob Martin
Fallopia japonica
© 2019 John Malpas

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

POACEAE

Festuca arundinacea
© 2022 Cynthia Powell
Festuca arundinacea
© 2020 Robert Steers
Festuca arundinacea
© 2017 MCOSD EDRR

Fuchsia magellanica    Hardy fuchsia
non-native
Shrub

ONAGRACEAE

Fuchsia magellanica
© 2022 Erin Jackson
Fuchsia magellanica
© 2024 Donald Burk
Fuchsia magellanica
© 2024 Donald Burk

Geranium purpureum    little Robin
invasive non-native
Annual, Biennial herb

GERANIACEAE

Geranium purpureum
© 2020 Jennifer Mo
Geranium purpureum
© 2023 Al Keuter
Geranium purpureum
© 2019 Cynthia Powell

Geranium robertianum    herb Robert
invasive non-native
Annual herb

GERANIACEAE

Geranium robertianum
© 2016 Steve Matson
Geranium robertianum
© 2016 Steve Matson
Geranium robertianum
© 2016 Steve Matson

Glyceria declinata    Waxy mannagrass
invasive non-native
Perennial grass

POACEAE

Glyceria declinata
© 2021 David popp
Glyceria declinata
© 2024 John Rawlings
Glyceria declinata
© 2022 David popp

Hedera canariensis    Canary ivy,  Algerian ivy
invasive non-native
Vine

ARALIACEAE

Hedera canariensis
© 2018 Sara Witt
Hedera canariensis
© 2018 Ron Vanderhoff
Hedera canariensis
© 2016 Ron Vanderhoff

Hedera helix    English ivy
invasive non-native
Vine, Shrub

ARALIACEAE

Hedera helix
© 2019 Claire Mallen
Hedera helix
© 2017 Allison Titus
Hedera helix
© 2022 Catherine Talbot

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
© 2024 Ron Vanderhoff
Hypericum canariense
© 2024 Ron Vanderhoff
Hypericum canariense
© 2015 Leah Bedoian

Hypericum grandifolium    malfurada
invasive non-native
Shrub

HYPERICACEAE

Hypericum grandifolium
© 2019 Jill Adams
Hypericum grandifolium
© 2018 Steven Cognac
Hypericum grandifolium
© 2019 David Greenberger

Hypericum perforatum    Common st. johnswort,  Klamath weed,  Klamathweed
invasive non-native
Perennial herb

HYPERICACEAE

Hypericum perforatum
© 2020 Bob Sweatt
Hypericum perforatum
© 2018 stephen rosenthal
Hypericum perforatum
© 2020 Bob Sweatt

Ilex aquifolium    English holly,  Holly
invasive non-native
Tree, Shrub

AQUIFOLIACEAE

Ilex aquifolium
© 2021 Cynthia Powell
Ilex aquifolium
© 2021 Donald Burk
Ilex aquifolium
© 2019 Tatiana Manzanillo

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

Lamiastrum galeobdolon    Yellow archangel
non-native
Perennial herb

LAMIACEAE

Lamiastrum galeobdolon
© 2021 Donald Burk
Lamiastrum galeobdolon
© 2016 Ramona Robison
Lamiastrum galeobdolon
© 2022 Katherine Stratton

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
© 2020 Joel A. Germond, Psy.D.

Leptospermum laevigatum    Australian tea tree
invasive non-native
Shrub

MYRTACEAE

Leptospermum laevigatum
© 2018 Emma Havstad
Leptospermum laevigatum
© 2018 Michael Chasse
Leptospermum laevigatum
© 2019 Patrick Furtado

Leucanthemum vulgare    Oxe eye daisy,  Oxeye daisy
invasive non-native
Perennial herb

ASTERACEAE

Leucanthemum vulgare
© 2020 Kim Cabrera
Leucanthemum vulgare
© 2019 Julian Geoghegan
Leucanthemum vulgare
© 2017 James Gonsman

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

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.

Ludwigia hexapetala    Ludwigia,  Six petal water primrose
invasive non-native
Perennial herb

ONAGRACEAE

Ludwigia hexapetala
© 2009 Keith Gagomiros
Ludwigia hexapetala
© 2021 Charles Russell
Ludwigia hexapetala
© 2019 Ron Vanderhoff

Ludwigia peploides ssp. montevidensis    Floating primrose willow,  Floating water primrose
invasive non-native
Perennial herb

ONAGRACEAE

Ludwigia peploides ssp. montevidensis
© 2021 Mike Russler
Ludwigia peploides ssp. montevidensis
© 2021 Mike Russler
Ludwigia peploides ssp. montevidensis
© 2021 Mike Russler

Maytenus boaria    Mayten
invasive non-native
Tree, Shrub

CELASTRACEAE

Maytenus boaria
© 2021 Julian Geoghegan
Maytenus boaria
© 2021 Julian Geoghegan
Maytenus boaria
© 2022 Jacob Martin

Mentha pulegium    Pennyroyal
invasive non-native
Perennial herb

LAMIACEAE

Mentha pulegium
© 2023 R.A. Chasey
Mentha pulegium
© 2022 R.A. Chasey
Mentha pulegium
© 2015 Chris Jaster

Mercurialis annua    Annual mercury
non-native
Annual herb

EUPHORBIACEAE

Mercurialis annua
© 2022 Ramona Robison
Mercurialis annua
© 2015 Julia King
Mercurialis annua
© 2022 Ramona Robison

Mesembryanthemum crystallinum    Common iceplant,  Crystalline ice plant
invasive non-native
Annual herb

AIZOACEAE

Mesembryanthemum crystallinum
© 2019 Naomi Goegan
Mesembryanthemum crystallinum
© 2019 Nathan Taxel
Mesembryanthemum crystallinum
© 2022 David Strauch

Myriophyllum aquaticum    Parrot feather watermilfoil,  Parrot's feather,  Parrotfeather
invasive non-native
Perennial herb (aquatic)

HALORAGACEAE

Myriophyllum aquaticum
© 2019 Patrick Furtado
Myriophyllum aquaticum
© 2016 Ross Hinderer
Myriophyllum aquaticum
© 2019 David popp

Myriophyllum spicatum    American milfoil,  Eurasian milfoil,  Spike watermilfoil
invasive non-native
Perennial herb

HALORAGACEAE

Myriophyllum spicatum
© 2020 Ron Vanderhoff
Myriophyllum spicatum
© 2020 Ron Vanderhoff
Myriophyllum spicatum
© 2020 Ron Vanderhoff

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

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

OXALIDACEAE

Oxalis pes-caprae
© 2015 Richard Chasey
Oxalis pes-caprae
© 2017 Angelique Herman
Oxalis pes-caprae
© 2019 Gary McDonald

Pennisetum clandestinum    Kikuyu grass,  Kikuyugrass
invasive non-native
Perennial grass

POACEAE

Pennisetum clandestinum
© 2020 Ron Vanderhoff
Pennisetum clandestinum
© 2020 Ron Vanderhoff
Pennisetum clandestinum
© 2017 Josh Nuzzo

Phalaris arundinacea    Reed canarygrass
native
Perennial grass

POACEAE

Phalaris arundinacea
© 2024 John Rawlings
Phalaris arundinacea
© 2020 Donald Burk
Phalaris arundinacea
© 2022 Dianne Lake

Phalaris elongata    Kolea grass
invasive non-native
Perennial grass

POACEAE

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

Phoenix canariensis    Canary island date palm
invasive non-native
Tree

ARECACEAE

Phoenix canariensis
© 2020 Ron Vanderhoff
Phoenix canariensis
© 2022 Ron Vanderhoff
Phoenix canariensis
© 2021 James Bailey

Pittosporum crassifolium    Stiffleaf cheesewood,  Thick leaf box,  Thick leaved pittosporum
non-native
Tree, Shrub

PITTOSPORACEAE

Pittosporum crassifolium
© 2017 Nick Graver
Pittosporum crassifolium
© 2022 Lisa Schomaker
Pittosporum crassifolium
© 2017 Gregory Arena

Pyracantha angustifolia    Narrowleaf firethorn
invasive non-native
Shrub

ROSACEAE

Pyracantha angustifolia
© 2018 Abbot Chambers
Pyracantha angustifolia
© 2019 Abbot Chambers
Pyracantha angustifolia
© 2018 Chris Qian

Rhamnus alaternus    Italian buckthorn
invasive non-native
Shrub

RHAMNACEAE

Rhamnus alaternus
© 2023 Jennifer Mo
Rhamnus alaternus
© 2022 Ron Vanderhoff
Rhamnus alaternus
© 2022 Ron Vanderhoff

Robinia pseudoacacia    Black locust
invasive non-native
Tree

FABACEAE

Robinia pseudoacacia
© 2021 Ron Vanderhoff
Robinia pseudoacacia
© 2021 David Wolfson
Robinia pseudoacacia
© 2015 Ron Vanderhoff

Roldana petasitis    Velvet groundsel
non-native
Shrub

ASTERACEAE

Roldana petasitis
© 2014 Rolf T Borlinghaus
Roldana petasitis
© 2014 Rolf T Borlinghaus
Roldana petasitis
© 2014 Rolf T Borlinghaus

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
© 2022 Leah Lord
Romulea rosea var. australis
© 2018 Robin Hunter

Rosa rubiginosa    Sweet brier
non-native
Shrub

ROSACEAE

Rosa rubiginosa
© 2020 MCOSD EDRR
Rosa rubiginosa
© 2020 Jacob Martin
Rosa rubiginosa
© 2023 Robert Steers

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

ROSACEAE

Rubus armeniacus
© 2014 James Gonsman
Rubus armeniacus
© 2018 Richard Spjut
Rubus armeniacus
© 2013 Michael Mitchell

Rytidosperma caespitosum    Tufted wallaby grass
invasive non-native
Perennial grass

POACEAE

Rytidosperma caespitosum
© 2022 Diana Wahl
Rytidosperma caespitosum
© 2019 Stephany Dery
Rytidosperma caespitosum
© 2016 Ron Vanderhoff

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

POACEAE

Rytidosperma penicillatum
© 2019 Eric Wrubel
Rytidosperma penicillatum
© 2024 Laura Booth
Rytidosperma penicillatum
© 2018 Sarah Inman

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

CHENOPODIACEAE

Salsola soda
© 2021 Jennifer Mo
Salsola soda
© 2022 Cynthia Powell
Salsola soda
© 2016 Cal-IPC

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

DIPSACACEAE

Scabiosa atropurpurea
© 2021 Ken Lunders
Scabiosa atropurpurea
© 2021 Mike Russler
Scabiosa atropurpurea
© 2021 Ken Lunders

Solanum aviculare    New Zealand nightshade
invasive non-native
Shrub

SOLANACEAE

Solanum aviculare
© 2018 Ron Vanderhoff
Solanum aviculare
© 2017 Nick Graver
Solanum aviculare
© 2018 Ron Vanderhoff

Sorghum halepense    Johnsongrass
invasive non-native
Perennial grass

POACEAE

Sorghum halepense
© 2014 Robert F Norris
Sorghum halepense
© 2019 Jennifer Mo
Sorghum halepense
© 2020 Julie A. Kierstead

Sparaxis tricolor    Harlequin flower,  Wandflower
non-native
Perennial herb

IRIDACEAE

Sparaxis tricolor
© 2018 Rachel Way
Sparaxis tricolor
© 2022 Tatiana Manzanillo
Sparaxis tricolor
© 2021 Jessica Cornelius

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

Spartium junceum    Gorse,  Spanish broom
invasive non-native
Shrub

FABACEAE

Spartium junceum
© 2020 Ron Vanderhoff
Spartium junceum
© 2021 Mary Herr
Spartium junceum
© 2021 Mary Herr

Stipa chaetophora    Stipoid ricegrass
non-native
Perennial grass

POACEAE

Stipa chaetophora
© 2017 Nick Graver
Stipa chaetophora
© 2017 Rachel Kesel
Stipa chaetophora
© 2017 Rachel Kesel

Stipa manicata    Andean tussockgrass
invasive non-native
Perennial grass

POACEAE

Stipa manicata
© 2015 Sarah Minnick
Stipa manicata
© 2018 Eric Wrubel
Stipa manicata
© 2023 Rachel Suding

Stipa miliacea    Smilo grass
non-native
Perennial grass

POACEAE

Stipa miliacea
© 2021 Ron Vanderhoff
Stipa miliacea
© 2020 Ron Vanderhoff
Stipa miliacea
© 2022 Ron Vanderhoff

Stipa purpurata    Bristly needle grass
non-native
Perennial grass

POACEAE

Stipa purpurata
© 2017 Nick Graver
Stipa purpurata
© 2024 Eric Goldbeck-Dimon
Stipa purpurata
© 2020 Henry Inman

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

Tradescantia fluminensis    Small leaf spiderwort
non-native
Perennial herb

COMMELINACEAE

Tradescantia fluminensis
© 2018 Amy Rapport
Tradescantia fluminensis
© 2016 David Greenberger
Tradescantia fluminensis
© 2019 David Greenberger

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

FABACEAE

Trifolium angustifolium
© 2019 Gary McDonald
Trifolium angustifolium
© 2021 Mary Gerbic
Trifolium angustifolium
© 2022 SMCP NRM Intern

Ulex europaeus    Common gorse
invasive non-native
Shrub

FABACEAE

Ulex europaeus
© 2021 Zoya Akulova-Barlow
Ulex europaeus
© 2022 Michelle Karle
Ulex europaeus
© 2021 Cleopatra Tuday

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