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| This list contains plants that are not yet listed on Cal-IPC's Inventory but have been reported spreading in California wildlands. Please add locations to Calflora and send information to Jutta Burger, jburger@cal-ipc.org | ||||||
| 333 PLANTS |
|
Passiflora tripartita Small Tree-Mallow
|
|
Chamaecytisus palmensis Small Tree-Mallow
|
|
Ensenbeckia flava Small Tree-Mallow
|
|
Zoysia spp Small Tree-Mallow
|
|
Aeonium spp. Small Tree-Mallow
|
|
Erica caniculata Small Tree-Mallow
|
|
Rubus laciatus Small Tree-Mallow
|
|
Mercurialis ambigua Small Tree-Mallow
|
|
Roldana petasites Small Tree-Mallow
|
|
Ceratophyllum submersum Small Tree-Mallow
|
|
Watsonia borbonica Small Tree-Mallow
|
|
Acacia baileyana Bailey acacia, Cootamundra wattle
• invasive non-native
Tree, Shrub 
© 2020 Jutta Burger 
© 2020 John Rawlings 
© 2020 John Rawlings |
|
Acacia cyclops Coastal wattle, Cyclops acacia
• invasive non-native
Shrub 
© 2023 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Acacia elata Cedar wattle
non-native
Tree |
|
Acacia longifolia Sydney golden wattle
non-native
Tree 
© 2023 Asa B Spade 
© 2023 Asa B Spade 
© 2018 Ron Vanderhoff |
|
Acacia paradoxa Kangaroo thorn
• invasive non-native
Shrub 
© 2022 Rocky Bajada 
© 2022 Katherine Stratton 
© 2022 Katherine Stratton |
|
Acacia pycnantha Golden wattle
• invasive non-native
Tree, Shrub 
© 2023 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Acacia redolens Bank catclaw
non-native
Tree, Shrub 
© 2024 Charles Gibbons 
© 2023 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Acaena novae-zelandiae Biddy biddy
• invasive non-native
Shrub (stem succulent) 
© 2023 Patrick Hoffman 
© 2024 Patrick Hoffman 
© 2018 Hayley Ross |
|
Aegilops cylindrica Jointed goat grass, Jointed goatgrass
• invasive non-native
Annual grass 
© 2021 Aleksandra Evert 
© 2021 Jacob Smith 
© 2018 MCOSD Restoration Crew |
|
Aeschynomene rudis Red aeschynomene, Zigzag jointvetch
• invasive non-native
Annual, Perennial herb  © 2001 CDFA  © 2001 CDFA  © 2001 CDFA |
|
Agrostis capillaris Colonial bentgrass
non-native
Perennial grass  © 2005 Steve Matson  © 2005 Steve Matson  © 2005 Steve Matson |
|
Agrostis gigantea Creeping bentgras, Giant bentgrass, Redtop
non-native
Perennial grass 
© 2023 Dana York 
© 2023 Dana York 
© 2022 John Rawlings |
|
Aira caryophyllea Shiver grass, Silver hairgrass, Silvery hairgrass
• invasive non-native
Annual grass 
© 2005 Steve Matson 
© 2005 Steve Matson 
© 2005 Steve Matson |
|
Aira praecox Yellow hairgrass
• invasive non-native
Annual grass 
© 2018 Ken Hickman 
© 2022 John Rawlings  © 2010 National Park Service |
|
Albizia lophantha Albizia, Plume acacia, Stink bean
non-native
Tree, Shrub 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Alliaria petiolata Garlic mustard
non-native
Annual, Biennial herb  © 2016 Keir Morse 
© 2022 Bryce Ryals 
© 2022 Bryce Ryals |
|
Allium triquetrum Three cornered leek, Threecorner leek, White flowered onion
• invasive non-native
Perennial herb (bulb) 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
|
Alopecurus pratensis Meadow foxtail
• invasive non-native
Perennial grass 
© 2022 Mike Russler 
© 2023 R.A. Chasey 
© 2015 David Greenberger |
|
Alyssum murale yellowtuft
non-native
Annual herb 
© 2008 Carri Pirosko 
© 2011 Carri Pirosko 
© 2008 Carri Pirosko |
|
Amaranthus retroflexus Green amaranth, Red root pigweed, Red rooted amaranth
non-native
Annual herb 
© 2017 Ingrid Cabada 
© 2022 Jennifer Mo 
© 2021 Ron Vanderhoff |
|
Ambrosia trifida Giant ragweed
• invasive non-native
Annual herb  © 2015 Richard Spellenberg  © 2008 Louis-M. Landry  © 2010 Jean Pawek |
|
Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile
• invasive non-native
Annual herb 
© 2017 Diane Etchison 
© 2019 Nathan Taxel 
© 2019 Dave Beller |
|
Anthriscus caucalis Bur chervil
non-native
Annual herb, Vine 
© 2021 Aaron Echols 
© 2024 Ron Vanderhoff 
© 2020 Jennifer Mo |
|
Aponogeton distachyos Cape pondweed
non-native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Aptenia cordifolia Baby sun rose, Dew plant
non-native
Perennial herb 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Araujia sericifera Bladderflower
• invasive non-native
Perennial herb, Vine 
© 2019 Ron Vanderhoff 
© 2021 Jennifer Mo 
© 2020 Ron Vanderhoff |
|
Arrhenatherum elatius Tall oatgrass
non-native
Perennial grass 
© 2020 Doug Allshouse 
© 2021 John Rawlings 
© 2019 Julian Geoghegan |
|
Arum italicum Italian lords and ladies
non-native
Perennial herb 
© 2021 Donald Burk  © 2015 Dr. Amadej Trnkoczy 
© 2012 Toni Corelli |
|
Atriplex amnicola Swamp saltbush
non-native
Annual herb 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Bacopa rotundifolia Disk waterhyssop, Round leaf water hyssop
non-native
Annual, Perennial herb 
© 2021 Sara Sweet 
© 2021 Sara Sweet  © 1995 Saint Mary's College of California |
|
Bellis perennis English daisy, English lawn daisy
• invasive non-native
Perennial herb 
© 2019 Ron Vanderhoff 
© 2023 Donald Burk 
© 2020 Bob Sweatt |
|
Berberis darwinii Darwin's berberis
• invasive non-native
Shrub 
© 2018 Abbot Chambers 
© 2016 Greg O'Connell 
© 2022 David Strauch |
|
Berteroa incana Hoary alyssum
• invasive non-native
Annual herb 
© 2016 Ed King  © 2022 jalopy 
© 2018 Michael Plotz |
|
Bituminaria bituminosa Arabian pea
non-native
Perennial herb  © 2005 Luigi Rignanese  © 2007 Dr. James D. Adams  © 2006 Luigi Rignanese |
|
Brassica oleracea Cabbage
non-native
Annual herb 
© 2009 Toni Corelli 
© 2021 Zoya Akulova-Barlow 
© 2009 Toni Corelli |
|
Briza minor Little quaking grass, Little quakinggrass, Little rattlesnake grass
non-native
Annual grass 
© 2023 R.A. Chasey 
© 2019 Gary McDonald 
© 2019 Gary McDonald |
|
Buddleja davidii Butterfly bush, Summer lilac
• invasive non-native
Tree, Shrub 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Cabomba caroliniana Carolina fanwort
non-native
Perennial herb 
© 2010 Gerald Carr 
© 2010 Gerald Carr 
© 2010 Gerald Carr |
|
Calamintha sylvatica Woodland calamint
non-native
Perennial herb 
© 2021 Cynthia Powell 
© 2021 Cynthia Powell 
© 2017 Adam Chasey (ssp. ascendens) |
|
Calendula arvensis Field marigold
non-native
Annual herb 
© 2025 Mike Russler 
© 2018 David Wolfson 
© 2025 Mike Russler |
|
Carex pendula Hanging sedge
• invasive non-native
Perennial grasslike herb 
© 2015 Andrea Williams 
© 2022 Mitchell Blake 
© 2021 R.A. Chasey |
|
Carrichtera annua Wards weed
• invasive non-native
Annual herb 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Casuarina equisetifolia Australian Pine, Beach sheoak
• invasive non-native
Tree 
© 2018 Zoya Akulova 
© 2015 Zoya Akulova 
© 2017 MCOSD EDRR |
|
Catalpa bignonioides Southern catalpa
non-native
Tree 
© 2015 Ron Vanderhoff 
© 2011 Ramona Robison 
© 2014 Dean Kelch |
|
Catharanthus roseus Madagascar periwinkle
• invasive non-native
Shrub (stem succulent) 
© 2020 Karla Navarro  © Nick Kurzenko  © 2005 Luigi Rignanese |
|
Centaurea iberica Iberian knapweed
• invasive non-native
Perennial herb 
© 2016 Don Thomas  © 2001 CDFA  © 2001 CDFA |
|
Centranthus ruber Jupiter's beard, Red valerian
non-native
Annual, Perennial herb 
© 2013 Zachary Mikalonis 
© 2022 Justin Felder 
© 2023 Ron Vanderhoff |
|
Cestrum parqui Chilean jessamine
• invasive non-native
Tree 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter |
|
Chasmanthe floribunda African cornflag, Chasmanthe
• invasive non-native
Perennial herb 
© 2024 Ron Vanderhoff 
© 2024 Ron Vanderhoff 
© 2017 Ron Vanderhoff |
|
Chorispora tenella Crossflower
• invasive non-native
Annual herb 
© 2022 Bob Sweatt 
© 2019 Caleb Cole 
© 2019 Liz Block |
|
non-native
© 2020 Ron Vanderhoff 
© 2018 Josie Bennett 
© 2020 Ron Vanderhoff |
|
Cichorium intybus Chicory
non-native
Perennial herb 
© 2020 Bob Sweatt 
© 2022 David Strauch 
© 2019 Diane Etchison |
|
Cirsium ochrocentrum Beaumont thistle, Yellow spined thistle
• invasive non-native
Perennial herb 
© 2018 Cynthia Powell 
© 2018 Stephen Pfeiler 
© 2018 Stephen Pfeiler |
|
Cirsium undulatum Wavy leaved thistle, Wavyleaf thistle
non-native
Perennial herb 
© 2020 Chris McDonald 
© 2020 Chris McDonald  © 2015 Richard Spellenberg |
|
Cistus ladanifer Gum rockrose, Resinous rockrose
• invasive non-native
Shrub (stem succulent) 
© 2021 Emily Sluiman 
© 2023 Keir Morse 
© 2023 Keir Morse |
|
Clematis vitalba Old man's beard, Traveller's joy
• invasive non-native
Vine 
© 2015 ken moore 
© 2019 Cynthia Powell 
© 2015 Ellen Uhler |
|
Clinopodium vulgare Wild basil
non-native
Perennial herb  © 2010 Louis-M. Landry  © 2016 Keir Morse  © 2016 Keir Morse |
|
Colocasia esculenta Taro root
• invasive non-native
Perennial herb 
© 2017 Ron Vanderhoff 
© 2024 Ron Vanderhoff 
© 2014 Ramona Robison |
|
Convolvulus arvensis Field bindweed, Orchard morningglory
• invasive non-native
Perennial herb, Vine 
© 2022 Steve Matson 
© 2021 Ron Vanderhoff 
© 2022 Steve Matson |
|
Coprosma repens Creeping mirrorplant
non-native
Shrub 
© 2015 Richard Chasey 
© 2009 Dean Taylor 
© 2011 Daniel Gluesenkamp |
|
Coreopsis lanceolata Garden coreopsis, Lanceleaf tickseed
non-native
Perennial herb 
© 2018 Chris Qian  © 2013 Richard Spellenberg  © 2013 Richard Spellenberg |
|
Coronilla valentina ssp. glauca Mediterranean crownvetch
non-native
Shrub |
|
Crepis capillaris Hawksbeard, Smooth hawk's beard, Smooth hawksbeard
non-native
Annual, Perennial herb 
© 2003 Steve Matson 
© 2003 Steve Matson 
© 2003 Steve Matson |
|
crepis pulchra Smallflower hawksbeard
non-native
Perennial herb 
© 2025 R.A. Chasey 
© 2025 R.A. Chasey 
© 2025 R.A. Chasey |
|
Cupaniopsis anacardioides Carrotwood
non-native
Tree 
© 2018 Andy Jones 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Cuscuta japonica Japanese dodder
• invasive non-native
Annual herb, Vine (parasitic) 
© 2014 Michael Perlmutter 
© 2013 David Chang 
© 2014 Michael Perlmutter |
|
Cyperus papyrus Papyrus
non-native
Perennial grasslike herb 
© 2016 Ron Vanderhoff 
© 2016 Barbara Boethling 
© 2020 Ron Vanderhoff |
|
Cyperus rotundus Nutgrass
• invasive non-native
Perennial grasslike herb 
© 2016 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
|
Cytisus multiflorus Spanish broom, White spanishbroom
• invasive non-native
Shrub 
© 2024 John Fairbank 
© 2025 John Fairbank |
|
Datura inoxia Pricklyburr
• invasive non-native
Perennial herb 
© Geoff Burleigh  © Nick Kurzenko  © 2007 Louis-M. Landry |
|
Daucus carota Queen Anne's lace, Wild carrot
• invasive non-native
Perennial herb 
© 2023 Donald Burk 
© 2021 Charles Russell 
© 2021 Charles Russell |
|
Descurainia pinnata Western tansy mustard, Western tansymustard, Yellow tansy mustard
native
Annual herb 
© 2018 Nancy Hamlett 
© 2022 Steve Matson 
© 2022 Steve Matson |
|
Osteospermum ecklonis Blue & white daisybush
non-native
Perennial herb 
© 2019 Dean Taylor 
© 2018 David Wolfson 
© 2020 Nathan Taxel |
|
Osteospermum fruticosum Trailing african daisy
non-native
Perennial herb 
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
|
Dimorphotheca sinuata African daisy, Cape marigold, Glandular cape marigold
• invasive non-native
Annual herb 
© 2024 Donald Burk 
© 2022 Oliver Brewer 
© 2017 Keir Morse |
|
Diospyros lotus Date plum
non-native
Tree |
|
Dipogon lignosus Okie bean
• invasive non-native
Perennial herb, Vine 
© 2021 Ron Vanderhoff 
© 2022 Alan Kaufmann 
© 2021 Ron Vanderhoff |
|
Dipsacus laciniatus cutleaf teasel
• invasive non-native
Perennial herb 
© 2011 Carri Pirosko 
© 2009 Carri Pirosko 
© 2011 Carri Pirosko |
|
Dittrichia viscosa False yellowhead
• invasive non-native
Perennial herb 
© 2020 Matthew Perryman 
© 2022 Brad Cook 
© 2021 Phil Calhoun |
|
Echium pininana Pine echium
non-native
Shrub 
© 2014 Alex Beakes 
© 2014 Toni Corelli 
© 2014 Ben Pittenger |
|
Echium plantagineum Salvation echium, Salvation jane, Viper's bugloss
• invasive non-native
Annual, Perennial herb 
© 2020 John Rawlings 
© 2019 Ken Hickman 
© 2011 Daniel Gluesenkamp |
|
Elytrigia intermedia Intermediate wheatgrass
non-native
Perennial grass 
© 2003 Steve Matson 
© 2003 Steve Matson 
© 2003 Steve Matson |
|
Elytrigia elongata Tall wheat grass
non-native
Perennial grass 
© 2024 Ron Vanderhoff 
© 2024 Ron Vanderhoff 
© 2024 Ron Vanderhoff |
|
Agropyron elongatum Tall wheat grass
non-native
Perennial grass
© 2024 Ron Vanderhoff
© 2024 Ron Vanderhoff
© 2024 Ron Vanderhoff |
|
Elymus repens Quack grass
non-native
Perennial grass  © 2005 Louis-M. Landry  © 2005 Louis-M. Landry  © 2008 Keir Morse |
|
Emex spinosa Devil's thorn, Spiny threecornerjack
• invasive non-native
Annual herb 
© 2017 Barbara Boethling 
© 2015 Ron Vanderhoff 
© 2017 Barbara Boethling |
|
Enchylaena tomentosa Ruby saltbush
non-native
Perennial herb 
© 2015 Dean Kelch 
© 2014 Amy Huie 
© 2015 Dean Kelch |
|
Eragrostis curvula Weeping lovegrass
non-native
Perennial grass 
© 2020 Donald Burk 
© 2020 Donald Burk 
© 2020 Donald Burk |
|
Conyza bonariensis Flax-leaved horseweed
non-native
Annual herb 
© 2021 Donald Burk 
© 2017 Gary McDonald 
© 2023 Ron Vanderhoff |
|
Erigeron karvinskianus Fleabane, Latin american fleabane
• invasive non-native
Perennial herb 
© 2023 R.A. Chasey 
© 2019 Gary McDonald 
© 2023 R.A. Chasey |
|
Conyza floribunda Tropical horseweed
non-native
Annual herb 
© 2021 Doug Allshouse 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Eriobotrya japonica Loquat
non-native
Tree 
© 2015 Garth Wadsworth 
© 2023 John Malpas 
© 2023 John Malpas |
|
Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree
non-native
Annual herb 
© 2006 Steve Matson 
© 2006 Steve Matson 
© 2006 Steve Matson |
|
Erodium brachycarpum Foothill filaree, Short fruited filaree, Shortfruit stork's bill
• invasive non-native
Annual herb 
© 2016 Bob van Duinen 
© 2016 Steve Matson 
© 2016 Steve Matson |
|
Erodium moschatum Musky stork's bill, White stemmed filaree, Whitestem filaree
• invasive non-native
Annual herb 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2016 Steve Matson |
|
Eucalyptus cladocalyx Sugar gum, Sugargum
• invasive non-native
Tree 
© 2017 Keir Morse 
© 2024 Cynthia Powell 
© 2023 Randall English |
|
Eucalyptus conferruminata Spider gum, bushy yate
non-native
Tree 
© 2022 R.A. Chasey 
© 2022 R.A. Chasey 
© 2021 Jacob Smith |
|
Euphorbia dendroides Tree spurge
non-native
Shrub 
© 2015 Dean Kelch 
© 2019 Rachelle Gray 
© 2023 Keir Morse |
|
Euphorbia exigua Dwarf spurge
non-native
Perennial herb 
© 2015 Peter Warner 
© 2015 Peter Warner 
© 2015 Peter Warner |
|
Euphorbia lathyris Compass plant, Gopher plant, Moleplant
• invasive non-native
Annual, Perennial herb 
© 2017 Aaron Echols 
© 2022 Ron Vanderhoff  © adiantumluz |
|
Euphorbia myrsinites Myrtle spurge
non-native
Biennial, Perennial herb 
© 2020 Julie A. Kierstead 
© 2018 Tom Getts 
© 2018 Tom Getts |
|
Polygonum aubertii Bukhara fleeceflower
non-native
Vine 
© 2023 Ecological Concerns Inc 
© 2021 Jennifer Mo 
© 2016 Michael Chasse |
|
Festuca bromoides Brome fescue
non-native
Annual grass 
© 2022 Diana Wahl 
© 2021 Toni Corelli 
© 2021 David popp |
|
Vulpia bromoides Brome fescue
non-native
Annual grass
© 2022 Diana Wahl
© 2021 Toni Corelli
© 2021 David popp |
|
Festuca pratensis Meadow fescue
non-native
Perennial grass 
© 2023 Elliot Gunnison  © 2012 Al Keuter  © 2012 Al Keuter |
|
Fraxinus uhdei Shamel ash
• invasive non-native
Tree 
© 2023 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2019 Cynthia Powell |
|
Fuchsia magellanica Hardy fuchsia
non-native
Shrub 
© 2022 Erin Jackson 
© 2024 Donald Burk 
© 2024 Donald Burk |
|
Fumaria capreolata White ramping fumitory
non-native
Perennial herb 
© 2023 David Wolfson 
© 2020 Eric Wrubel 
© 2024 Mike Russler |
|
Fumaria officinalis Drug fumitory
• invasive non-native
Annual herb 
© 2021 stephen rosenthal 
© 2021 Mary Conway 
© 2021 Mary Conway |
|
Galega officinalis Professor-weed
• invasive non-native
Perennial herb 
© 2017 Gerald Carr 
© 2017 Gerald Carr 
© 2017 Gerald Carr |
|
Genista linifolia Mediterranean broom
• invasive non-native
Shrub 
© 2017 B.J. Dion 
© 2017 B.J. Dion 
© 2017 B.J. Dion |
|
Geranium core-core Alderney crane's-bill
non-native
Perennial herb 
© 2012 BOB CASE 
© 2013 Toni Corelli 
© 2022 Jennifer Mo |
|
Geranium lucidum Shiny geranium, Shining geranium
• invasive non-native
Annual, Biennial herb 
© 2025 Mary Ann Machi 
© 2021 Susan Fawcett 
© 2025 Mary Ann Machi |
|
Geranium molle Crane's bill geranium, Dove's foot geranium, Dovefoot geranium
• invasive non-native
Annual, Perennial herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2008 Steve Matson |
|
Geranium purpureum little Robin
• invasive non-native
Annual, Biennial herb 
© 2020 Jennifer Mo 
© 2023 Al Keuter 
© 2019 Cynthia Powell |
|
Geranium retrorsum New zealand geranium
• invasive non-native
Perennial herb  © 2012 Gary A. Monroe  © 2012 Gary A. Monroe  © 2012 Gary A. Monroe |
|
Geranium robertianum herb Robert
• invasive non-native
Annual herb 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2016 Steve Matson |
|
Glebionis segetum Corndaisy
non-native
Annual herb 
© 2025 Mike Russler 
© 2025 Mike Russler 
© 2025 Mike Russler |
|
Chrysanthemum segetum Corndaisy
non-native
Annual herb
© 2025 Mike Russler
© 2025 Mike Russler
© 2025 Mike Russler |
|
Gleditsia triacanthos Honeylocust
• invasive non-native
Tree, Shrub 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Glycyrrhiza glabra Cultivated licorice
non-native
Perennial herb  © 2017 Zoya Akulova  © 2018 Ron Vanderhoff 
© 2016 Ron Vanderhoff |
|
Grevillea robusta Silkoak
• invasive non-native
Tree 
© 2021 Ron Vanderhoff  © Chris Shuck  © chrishargreaves |
|
Grevillea rosmarinifolia rosemary grevillea, spider flower
non-native
Shrub 
© 2015 Chris Jaster 
© 2025 Robert Katz 
© 2015 jamie smith |
|
Grindelia squarrosa Curlycup gumweed
non-native
Perennial herb 
© 2020 Ron Vanderhoff 
© 2020 Bob Sweatt 
© 2021 Donald Burk |
|
Gunnera tinctoria Chilean gunnera
• invasive non-native
Perennial herb (aquatic) 
© 2011 Michael Perlmutter  © 2021 peterzika 
© 2011 Michael Perlmutter |
|
Gypsophila paniculata Baby's breath
• invasive non-native
Perennial herb  © 2010 Barry Breckling 
© 2018 Joe Woods 
© 2018 Joe Woods |
|
Halimodendron halodendron Common salttree, Russian salt tree
• invasive non-native
Shrub  © 2001 CDFA  © 2001 CDFA  © 2001 CDFA |
|
Hedera hibernica Atlantic ivy
non-native
Vine |
|
Hedypnois cretica Crete weed
non-native
Annual herb 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2022 Steve Matson |
|
Helianthus tuberosus Jerusalem artichoke
• invasive non-native
Perennial herb 
© 2019 Jennifer Mo 
© 2019 Jennifer Mo 
© 2019 Jennifer Mo |
|
Heliotropium amplexicaule Clasping heliotrope
• invasive non-native
Perennial herb 
© 2014 John L. Thompson 
© 2025 Ron Vanderhoff 
© 2025 Ron Vanderhoff |
|
Heliotropium supinum Dwarf heliotrope
non-native
Annual herb |
|
Heracleum mantegazzianum Giant hogweed
non-native
Perennial herb  © 2008 Bill Moses  © 2008 Bill Moses  © 2008 Bill Moses |
|
Hibiscus trionum Flower of an hour
non-native
Annual herb 
© 2015 Charles Russell  © 2004 Dr. Amadej Trnkoczy  © 2004 Dr. Amadej Trnkoczy |
|
Hyparrhenia hirta Thatching grass
• invasive non-native
Perennial grass  © 2008 Steve Matson  © 2008 Steve Matson |
|
Hypericum androsaemum Sweet amber
• invasive non-native
Shrub 
© 2018 Zoya Akulova 
© 2023 Jennifer Mo 
© 2023 Jennifer Mo |
|
Hypericum calycinum Aaron's beard
non-native
Shrub 
© 2018 Brian Charles 
© 2016 Anna Schlosser 
© 2021 Lenihan Mazur |
|
Hypericum grandifolium malfurada
• invasive non-native
Shrub 
© 2019 Jill Adams 
© 2018 Steven Cognac 
© 2019 David Greenberger |
|
Ipomoea indica Oceanblue morning glory
• invasive non-native
Perennial herb  © Natalie Servindelamora 
© 2023 Ron Vanderhoff 
© 2020 Ellen Stearns |
|
Iris foetidissima Stinking iris
non-native
Perennial herb 
© 2021 Cynthia Powell 
© 2022 John Doyen 
© 2025 Sarah McNamara |
|
Iris orientalis Yellowband iris
non-native
Perennial herb |
|
Jacaranda mimosifolia Black poui
non-native
Tree 
© 2016 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Juncus acutus Spiny rush
native
Perennial grasslike herb (rhizomatous) 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2019 Susan McDougall |
|
Kickxia elatine Sharp leaved fluellin, Sharp point fluellin, Sharpleaf cancerwort
non-native
Perennial herb 
© 2023 John Malpas 
© 2018 Ron Vanderhoff 
© 2016 Barbara Boethling |
|
Kniphofia uvaria Redhot poker
• invasive non-native
Perennial herb 
© 2022 Michael Mitchell 
© 2021 Avis Boutell 
© 2013 Michael Mitchell |
|
Koelreuteria paniculata Goldenrain tree
non-native
Tree 
© 2020 Jennifer Mo 
© 2018 Ron Vanderhoff 
© 2022 Jennifer Mo |
|
Lactuca saligna Narrow leaved wild lettuce, Willow lettuce, Willowleaf lettuce
non-native
Annual herb 
© 2021 Don Hollander 
© 2019 Stacie Wolny 
© 2021 Don Hollander |
|
Lactuca serriola Prickly lettuce, Prickly wild lettuce
• invasive non-native
Annual herb 
© 2017 Gary McDonald 
© 2017 Gary McDonald 
© 2022 Chris McDonald |
|
Lamiastrum galeobdolon Yellow archangel
non-native
Perennial herb 
© 2021 Donald Burk 
© 2016 Ramona Robison 
© 2022 Katherine Stratton |
|
Lantana camara Lantana
• invasive non-native
Shrub 
© 2021 Ron Vanderhoff 
© 2022 David Strauch 
© 2022 David Strauch |
|
Lapsana communis Common nipplewort, Nipplewort
non-native
Annual herb 
© 2023 Dana York 
© 2021 R.A. Chasey 
© 2019 Jennifer Mo |
|
Lathyrus latifolius Everlasting pea, Perennial pea, Perennial sweet pea
non-native
Perennial herb 
© 2020 Jutta Burger 
© 2019 Cynthia Powell 
© 2021 Sherry Adams |
|
Lathyrus tingitanus Tangier pea
non-native
Annual herb 
© 2015 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Lavandula stoechas French lavender
non-native
Shrub 
© 2024 Jennifer Mo 
© 2019 Julian Geoghegan 
© 2015 Chris Jaster |
|
Lepidium campestre Cow cress, English pepper grass, Field pepper grass
non-native
Annual, Perennial herb 
© 2004 Steve Matson 
© 2004 Steve Matson 
© 2004 Steve Matson |
|
Leptospermum laevigatum Australian tea tree
• invasive non-native
Shrub 
© 2018 Emma Havstad 
© 2018 Michael Chasse 
© 2019 Patrick Furtado |
|
Ligustrum japonicum Japanese privet
non-native
Tree, Shrub 
© 2019 C. Michael Hogan 
© 2020 Megan McKiernan 
© 2023 Friends of Five Creeks volunteers |
|
Ligustrum lucidum Glossy privet
• invasive non-native
Tree, Shrub 
© 2021 Alex Nikolaou 
© 2021 Ron Vanderhoff 
© 2017 Ron Vanderhoff |
|
Ligustrum ovalifolium California privet
non-native
Tree, Shrub 
© 2018 Abbot Chambers 
© 2020 Diana Wahl 
© 2013 Ramona Robison |
|
Limnobium laevigatum American spongeplant
• invasive non-native
Perennial herb 
© 2024 R.A. Chasey 
© 2022 Donald Burk 
© 2021 Jutta Burger |
|
Limonium duriusculum European sea lavender
• invasive non-native
Perennial herb 
© 2016 Ron Vanderhoff 
© 2016 Ron Vanderhoff 
© 2019 Amanda Swanson |
|
Limonium perezii Canarian sea lavender, Perez's sealavender
non-native
Perennial herb 
© 2017 B.J. Dion 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Linum bienne Narrow leaved flax, Pale flax, Small flowered flax
non-native
Annual herb 
© 2019 Ken Lunders 
© 2021 Cameron Chabre 
© 2018 Cynthia Powell |
|
Linum trigynum French flax
non-native
Annual herb 
© 2013 Peter Warner 
© 2022 R.A. Chasey 
© 2022 R.A. Chasey |
|
Lonicera japonica Japanese honeysuckle
non-native
Vine, Shrub 
© 2018 michelle peruzzi 
© 2022 Andy Ford 
© 2021 Ron Vanderhoff |
|
Lotus angustissimus Slender bird's foot trefoil, Slender lotus
non-native
Annual herb 
© 2015 James Gonsman 
© 2010 Toni Corelli  © 2009 Zoya Akulova |
|
Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil
• invasive non-native
Perennial herb 
© 2005 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Ludwigia decurrens Wingleaf primrose-willow
non-native
Perennial herb 
© 2022 Timothy Blank 
© 2022 Timothy Blank 
© 2024 Sonia Zarate |
|
Lychnis coronaria Rose campion
non-native
Perennial herb 
© 2020 MCOSD EDRR 
© 2016 Mark Vande Pol 
© 2014 Garrett Dickman |
|
Anagallis arvensis Scarlet pimpernel
non-native
Annual herb 
© 2017 B.J. Dion 
© 2018 Stacie Wolny 
© 2017 B.J. Dion |
|
Anagallis monelli Flaxleaf pimpernel
non-native
Perennial herb 
© 2022 Richard Sullivan 
© 2021 Randy Huey 
© 2022 John Doyen |
|
Macfadyena unguis-cati Catclawvine
non-native
Tree 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Malephora crocea Coppery mesembryanthemum
• invasive non-native
Perennial herb 
© 2022 Ron Vanderhoff 
© 2022 Daniel Huynh 
© 2021 Ron Vanderhoff |
|
Lavatera cretica Cretan mallow
non-native
Shrub 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2022 Jennifer Mo |
|
Maytenus boaria Mayten
• invasive non-native
Tree, Shrub 
© 2021 Julian Geoghegan 
© 2021 Julian Geoghegan 
© 2022 Jacob Martin |
|
Melianthus major Honey flower
non-native
Shrub  © 2018 Zoya Akulova  © 2017 Zoya Akulova  © 2010 Zoya Akulova |
|
Melilotus indicus Annual yellow sweetclover, Sourclover
non-native
Annual herb 
© 2019 Randy Huey 
© 2019 Randy Huey 
© 2017 Rosalie Benitez |
|
Melilotus officinalis Yellow sweetclover
non-native
Annual, Biennial herb 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt |
|
Melilotus alba Yellow sweetclover
• invasive non-native
Annual, Biennial herb
© 2020 Bob Sweatt
© 2020 Bob Sweatt
© 2020 Bob Sweatt |
|
Melissa officinalis Bee balm, Common balm, Lemon balm
non-native
Perennial herb 
© 2022 R.A. Chasey 
© 2021 R.A. Chasey 
© 2021 Cara Wilcox |
|
Mentha spicata Spearmint
non-native
Perennial herb 
© 2022 Donald Burk 
© 2022 Donald Burk 
© 2023 Ron Vanderhoff |
|
Mentha Xpiperita Peppermint
non-native
Perennial herb 
© 2019 Ron Vanderhoff  © 1995 Saint Mary's College of California 
© 2019 Ron Vanderhoff |
|
Mercurialis annua Annual mercury
non-native
Annual herb 
© 2022 Ramona Robison 
© 2015 Julia King 
© 2022 Ramona Robison |
|
Mesembryanthemum nodiflorum Slender leaved ice plant, Slenderleaf iceplant, Small flowered iceplant
• invasive non-native
Annual herb 
© 2009 Howard Clark 
© 2017 B.J. Dion 
© 2019 Jennifer Mo |
|
Muehlenbeckia complexa Mattress vine
non-native
Vine 
© 2021 Jennifer Mo 
© 2024 Maria Alvarez  © 2009 Neal Kramer |
|
Myoporum acuminatum Strichnine bush
non-native
Tree, Shrub 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Nardus stricta matgrass
non-native
Perennial grass 
© 2015 Carri Pirosko 
© 2015 Carri Pirosko 
© 2015 Carri Pirosko |
|
Nelumbo lutea American lotus
non-native
Perennial herb 
© 2022 Donald Burk 
© 2022 Donald Burk 
© 2022 Donald Burk |
|
Nerium oleander Oleander
• invasive non-native
Tree 
© 2019 Celeste Dodge 
© 2022 Ron Vanderhoff 
© 2019 B.J. Dion |
|
Nothoscordum gracile Slender false garlic
• invasive non-native
Perennial herb 
© 2017 Ron Vanderhoff  © 2017 sea-kangaroo 
© 2023 Jennifer Mo |
|
Nymphaea odorata American white waterlily, Water lily
• invasive non-native
Perennial herb  © 2006 Joseph Dougherty/ecology.org  © 2006 Louis-M. Landry  © 2006 Louis-M. Landry |
|
Nymphoides peltata Water fringe, Yellow floatingheart
non-native
Perennial herb  © 2011 Louis-M. Landry  © 2001 CDFA |
|
Oenothera glazioviana Red sepaled evening primrose, Redsepal evening primrose
non-native
Perennial herb  © 2007 Dr. Amadej Trnkoczy  © 2007 Dr. Amadej Trnkoczy  © 2007 Dr. Amadej Trnkoczy |
|
Gaura sinuata Wavy-leaved gaura
non-native
Perennial herb  © 2009 Vince Scheidt  © 2001 CDFA  © 2001 CDFA |
|
Oncosiphon piluliferum Stinknet
non-native
Annual herb 
© 2020 Lana Nguyen 
© 2019 Ron Vanderhoff 
© 2020 Hailey Laskey |
|
Onobrychis viciifolia Sainfoin, Sanfoin
non-native
Perennial herb  © 2009 Mary Winter  © 2009 Mary Winter  © 2006 Luigi Rignanese |
|
Onopordum illyricum Illyrian cottonthistle, Illyrian thistle
• invasive non-native
Annual, Biennial herb 
© 2021 Nancy Barrera 
© 2021 Nancy Barrera 
© 2021 Nancy Barrera |
|
Onopordum tauricum Bull cottonthistle, Taurian thistle
• invasive non-native
Perennial herb  © 2001 CDFA  © 2001 CDFA |
|
Oxalis corniculata Creeping wood sorrel, Creeping woodsorrel, Yellow sorrel
• invasive non-native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Oxalis latifolia Broadleaf woodsorrel, Mexican oxalis
non-native
Perennial herb  © 2001 CDFA  © 2006 Adonis (Don) Tate  © 2001 CDFA |
|
Papaver somniferum Opium poppy
non-native
Annual herb 
© 2021 Ken Lunders 
© 2022 David Strauch 
© 2023 Jennifer Mo |
|
Parietaria judaica Spreading pellitory
non-native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Parkinsonia aculeata Jerusalem thorn, Mexican palo verde
• invasive non-native
Tree 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Parthenium hysterophorus Santa maria feverfew
• invasive non-native
Perennial herb 
© 2019 Nathan Taxel 
© 2019 Nathan Taxel 
© 2018 Ron Vanderhoff |
|
Paspalum dilatatum Dallis grass, Dallisgrass
non-native
Perennial grass 
© 2024 David popp 
© 2024 David popp 
© 2021 Ron Vanderhoff |
|
Paspalum urvillei Vasey's grass
• invasive non-native
Perennial grass 
© 2021 Jennifer Mo 
© 2021 Jennifer Mo 
© 2024 Donald Burk |
|
Paspalum vaginatum Seashore paspalum
• invasive non-native
Perennial grass 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
|
Passiflora caerulea Bluecrown passionflower
non-native
Vine 
© 2025 Ron Vanderhoff 
© 2019 Nathan Taxel 
© 2018 Ron Vanderhoff |
|
• invasive non-native
Vine 
© 2016 Patrick Nicholson 
© 2017 Ramona Robison 
© 2019 Ramona Robison |
|
• invasive non-native
Vine
© 2016 Patrick Nicholson
© 2017 Ramona Robison
© 2019 Ramona Robison |
|
Peganum harmala Harmal peganum
• invasive non-native
Perennial herb  © 2011 Debra L. Cook 
© 2021 Caleb Cole  © 2001 CDFA |
|
Pennisetum ciliare Buffelgrass
non-native
Perennial grass 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Pennisetum villosum Feathertop
• invasive non-native
Perennial grass 
© 2018 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Pentaschistis airoides False hairgrass
non-native
Annual grass 
© 2015 Jon Rebman (ssp. airoides) 
© 2015 Jon Rebman (ssp. airoides) 
© 2015 Jon Rebman |
|
Polygonum persicaria Spotted ladysthumb
non-native
Annual herb 
© 2020 R.A. Chasey 
© 2021 joaquin hale 
© 2021 joaquin hale |
|
Polygonum polystachyum Himalayan knotweed
• invasive non-native
Perennial herb 
© 2017 Redwood Community Action Agency 
© 2019 David Juliano 
© 2014 Ramona Robison |
|
Phalaris arundinacea Reed canarygrass
native
Perennial grass 
© 2024 John Rawlings 
© 2020 Donald Burk 
© 2022 Dianne Lake |
|
Phalaris elongata Kolea grass
• invasive non-native
Perennial grass 
© 2018 Steven Cognac 
© 2018 Sarah Inman 
© 2018 Steven Cognac |
|
Phleum pratense Common timothy, Cultivated timothy, Timothy
non-native
Perennial grass 
© 2013 BOB CASE 
© 2019 Julie Kierstead Nelson 
© 2021 Emily R. Allen |
|
Phoenix dactylifera Date palm
non-native
Tree, Shrub 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Photinia serratifolia Taiwanese photinia
non-native
Shrub, Tree 
© 2015 Kate Symonds 
© 2020 Elliot Gunnison 
© 2024 David popp |
|
Physalis subglabrata Long leafed tomatillo, Longleaf groundcherry
• invasive non-native
Perennial herb 
© 2018 Robert L. Carr 
© 2018 Robert L. Carr 
© 2018 Robert L. Carr |
|
Phytolacca americana American pokeweed, Pokeberry
• invasive non-native
Perennial herb 
© 2009 Julie A. Kierstead 
© 2021 Donald Burk 
© 2022 Donald Burk |
|
Pinus halepensis Aleppo pine
non-native
Tree 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Pinus pinea Italian stone pine
non-native
Tree 
© 2018 Michael Mitchell 
© 2020 Diana Wahl 
© 2015 Chris Jaster |
|
Pistacia chinensis Chinese pistache, Chinese pistachio
• invasive non-native
Tree 
© 2018 Thomas Reyes 
© 2020 Ron Vanderhoff 
© 2023 David popp |
|
Pistia stratiotes Water lettuce
non-native
Perennial herb 
© 2020 Ron Vanderhoff 
© 2024 Ron Vanderhoff 
© 2016 Barbara Boethling |
|
Pittosporum tobira Japanese cheesewood, Mock orange
non-native
Tree, Shrub 
© 2022 Ron Vanderhoff 
© 2017 Ron Vanderhoff 
© 2023 Aracely Lara |
|
Pittosporum undulatum Australian cheesewood, Victorian box
• invasive non-native
Tree, Shrub 
© 2018 Ron Vanderhoff 
© 2017 UCSC Weed Management Group 
© 2018 Ron Vanderhoff |
|
Plantago arenaria Indian plantain
non-native
Annual herb 
© 2020 Ron Vanderhoff 
© 2016 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Plantago coronopus Buckhorn plantain, Cut leaf plantain
• invasive non-native
Annual herb 
© 2022 R.A. Chasey 
© 2021 Zoya Akulova-Barlow 
© 2017 MCOSD Restoration Crew |
|
Plecostachys serpyllifolia Petite-licorice
• invasive non-native
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Polycarpon tetraphyllum Four leaved all seed, Four leaved allseed, Four leaved polycarp
non-native
Annual herb 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Polygala myrtifolia Myrtle leaf milkwort
• invasive non-native
Shrub 
© 2019 MCOSD EDRR 
© 2015 Pete Frye 
© 2017 MCOSD EDRR |
|
Polygonum aviculare Prostrate knotweed
non-native
Annual, Perennial herb 
© 2023 Ron Vanderhoff 
© 2023 Cynthia Powell 
© 2021 Ron Vanderhoff |
|
Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass
non-native
Perennial grass 
© 2022 John Rawlings 
© 2022 John Rawlings 
© 2020 Ron Vanderhoff |
|
Populus alba Silver poplar, White poplar
non-native
Tree 
© 2020 Maisie Borg 
© 2016 Sara Sweet 
© 2020 Jennifer Mo |
|
Populus nigra Lombardy poplar
non-native
Tree 
© 2019 Ron Vanderhoff  © © 2016 Zoya Akulova 
© 2013 Cynthia Powell |
|
Puccinellia maritima Seaside alkaligrass
non-native
Perennial grass 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter 
© 2011 Michael Perlmutter |
|
Pyrus calleryana Callery pear
• invasive non-native
Tree 
© 2021 Randy Huey 
© 2022 Donald Burk 
© 2017 Marabeth Grahame |
|
Ranunculus muricatus Buttercup, Pricklefruit buttercup, Spiny buttercup
non-native
Annual, Perennial herb 
© 2023 R.A. Chasey 
© 2023 Alaine Arslan 
© 2009 Julie A. Kierstead |
|
Rapistrum rugosum Annual bastardcabbage
non-native
Annual, Perennial herb 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Rhagadiolus stellatus Endive daisy
non-native
Annual herb 
© 2022 Emily R. Allen 
© 2017 William Miller 
© 2020 Naftali Moed |
|
Rhamnus alaternus Italian buckthorn
• invasive non-native
Shrub 
© 2023 Jennifer Mo 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Romulea rosea Rosy sandcrocus
• invasive non-native
Perennial herb 
© 2024 David Wolfson 
© 2022 Lenihan Mazur 
© 2018 Robin Hunter |
|
Romulea rosea var. australis Rosy sand crocus, Rosy sandcrocus
non-native
Perennial herb 
© 2019 Janice Kuch 
© 2024 R.A. Chasey 
© 2022 Leah Lord |
|
Rosa canina Dog rose
non-native
Shrub 
© 2018 MCOSD EDRR 
© 2017 Hayley Ross  © 2004 Dr. Amadej Trnkoczy |
|
Rosa rubiginosa Sweet brier
non-native
Shrub 
© 2020 MCOSD EDRR 
© 2020 Jacob Martin 
© 2023 Robert Steers |
|
Rubus laciniatus Cut leaved blackberry, Cutleaf blackberry
non-native
Shrub 
© 2017 Chris Friedel 
© 2021 Donald Burk 
© 2014 John Malpas |
|
Rubus ulmifolius Elmleaf blackberry, Elm leaf blackberry
non-native
Vine, Shrub 
© 2024 Donald Burk 
© 2020 Jennifer Mo 
© 2021 Ramona Robison |
|
Rumex conglomeratus Clustered dock, Green dock
non-native
Perennial herb 
© 2020 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Rumex dentatus Toothed dock
non-native
Annual, Perennial herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Rumex obtusifolius Bitter dock
non-native
Perennial herb 
© 2021 Toni Corelli 
© 2021 Toni Corelli 
© null |
|
Rumex pulcher Fiddle dock
non-native
Perennial herb 
© 2020 Ryan Carle 
© 2022 Chris McDonald 
© 2021 David popp |
|
Rytidosperma caespitosum Tufted wallaby grass
• invasive non-native
Perennial grass 
© 2022 Diana Wahl 
© 2019 Stephany Dery 
© 2016 Ron Vanderhoff |
|
Rytidosperma penicillatum Purple awned wallaby grass , Hairy oat grass, Poverty grass
• invasive non-native
Perennial grass 
© 2019 Eric Wrubel 
© 2024 Laura Booth 
© 2018 Sarah Inman |
|
Salpichroa origanifolia Lily of the valley vine
• invasive non-native
Perennial herb 
© 2014 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Salsola soda Alkali russian thistle, Oppositeleaf russian thistle
• invasive non-native
Annual herb 
© 2024 R.A. Chasey 
© 2022 Cynthia Powell 
© 2022 Cynthia Powell |
|
Salvia aethiopis Mediterranean sage
• invasive non-native
Perennial herb 
© 2025 Mike Russler 
© 2024 Alaine Arslan 
© 2024 Alaine Arslan |
|
Salvia verbenaca Verbena sage
non-native
Perennial herb  © 2007 Luigi Rignanese  © 2007 Luigi Rignanese  © 2007 Luigi Rignanese |
|
Scabiosa atropurpurea Pincushion flower, Pincushion plant, Pincushions
• invasive non-native
Annual herb 
© 2021 Ken Lunders 
© 2021 Mike Russler 
© 2021 Ken Lunders |
|
Schinus polygamus Hardee peppertree
non-native
Tree, Shrub 
© 2018 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Scolymus hispanicus Common goldenthistle, Golden thistle
• invasive non-native
Perennial herb  © 2004 Dr. Amadej Trnkoczy  © 2001 CDFA |
|
Senecio linearifolius Australian fireweed
• invasive non-native
Annual, Perennial herb 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Senecio quadridentatus Cotton burnweed
non-native
Annual, Perennial herb 
© 2019 Adonis Tate  © 2019 Adonis (Don) Tate  © 2019 Adonis (Don) T |
|
Senecio vulgaris Common groundsel, Old man in the spring, Old man of spring
non-native
Annual herb 
© 2017 Barbara Boethling 
© 2023 Ron Vanderhoff 
© 2021 Toni Corelli |
|
Senna didymobotrya African senna, African wild cassia
non-native
Shrub 
© 2021 Ron Vanderhoff 
© 2021 Ramona Robison 
© 2021 Ron Vanderhoff |
|
Senna multiglandulosa Glandular cassia
non-native
Shrub 
© 2025 David Wolfson 
© 2023 Kathy Fulton 
© 2022 Tracy Pham |
|
Setaria pumila Yellow bristlegrass
non-native
Annual grass 
© 2017 Peter Warner 
© 2016 Thomas Reyes 
© 2017 Peter Warner |
|
Setaria viridis Green bristlegrass, Green foxtail
non-native
Annual grass 
© 2017 Ron Vanderhoff 
© 2012 Zoya Akulova-Barlow 
© 2021 David popp |
|
Sisymbrium altissimum Tall tumblemustard, Tumble mustard, Tumbling mustard
non-native
Annual herb 
© 2019 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Solanum aviculare New Zealand nightshade
• invasive non-native
Shrub 
© 2018 Ron Vanderhoff 
© 2017 Nick Graver 
© 2018 Ron Vanderhoff |
|
Solanum carolinense Carolina horse nettle, Carolina horsenettle
• invasive non-native
Perennial herb  © 2017 Wynn Anderson  © 2001 CDFA  © 2001 CDFA |
|
Solanum elaeagnifolium Horse nettle, Silver leaved horsenettle, Silverleaf nightshade
• invasive non-native
Perennial herb 
© 2021 Charles Russell 
© 2019 Ron Vanderhoff 
© 2015 Ron Vanderhoff |
|
Solanum mauritianum Earleaf nightshade
non-native
Shrub  © 2019 James Bailey  © 2019 James Bailey  © 2019 James Bailey |
|
Solanum nigrum Black nightshade
non-native
Annual herb 
© 2019 Julian Geoghegan 
© 2019 Patrick Furtado 
© 2021 Mike Russler |
|
Solanum sarrachoides Hoe nightshade
non-native
Shrub 
© 2011 Robert L. Carr 
© 2014 Don Loarie 
© 2018 Adonis Tate |
|
Solanum rostratum Buffalo berry, Buffalobur nightshade
non-native
Annual herb 
© 2016 Ron Vanderhoff 
© 2021 Timothy Blank 
© 2019 Ron Vanderhoff |
|
Sonchus arvensis Field sowthistle, Perennial sow thistle
• invasive non-native
Perennial herb 
© 2023 Cynthia Powell 
© 2023 Cynthia Powell 
© 2015 Friends of Five Creeks volunteers |
|
Sonchus asper Spiny sowthistle
non-native
Annual herb 
© 2010 Michael Mitchell 
© 2020 Julie A. Kierstead 
© 2017 MCOSD Restoration Crew |
|
Sorghum halepense Johnsongrass
• invasive non-native
Perennial grass  © 2014 Robert F Norris 
© 2019 Jennifer Mo 
© 2020 Julie A. Kierstead |
|
Sphaerophysa salsula Alkali swainsonpea, Austrian peaweed
• invasive non-native
Perennial herb  © 2009 Barry Breckling  © 2009 Barry Breckling |
|
Sporobolus indicus Smut grass, Smutgrass
non-native
Perennial grass 
© 2019 Ron Vanderhoff 
© 2022 Donald Burk 
© 2022 Donald Burk |
|
Achnatherum brachychaetum Puna needle grass
• invasive non-native
Perennial grass 
© 2020 Adrian Lustre 
© 2020 Adrian Lustre 
© 2020 Adrian Lustre |
|
Stipa capensis Cape ricegrass
• invasive non-native
Annual grass 
© 2023 Syd Magner 
© 2019 Stephanie Hines 
© 2019 Stephanie Hines |
|
Nassella manicata Andean tussockgrass
• invasive non-native
Perennial grass 
© 2015 Sarah Minnick 
© 2018 Eric Wrubel 
© 2023 Rachel Suding |
|
Stipa purpurata Bristly needle grass
non-native
Perennial grass 
© 2017 Nick Graver 
© 2024 Eric Goldbeck-Dimon 
© 2020 Henry Inman |
|
Nassella tenuissima Mexican feathergrass
• invasive non-native
Perennial grass  © 2015 Neal Kramer  © 2015 Neal Kramer  © 2016 Barbara Boethling |
|
Malcolmia africana African mustard
non-native
Annual herb 
© 2005 Steve Matson 
© 2005 Steve Matson 
© 2005 Steve Matson |
|
Tamarix chinensis Chinese tamarisk, Fivestamen tamarisk, Salt cedar
• invasive non-native
Shrub 
© 2024 Larry Hendrickson  © 2024 thutat2  © 2017 dlbowls |
|
Taraxacum officinale Common dandelion
• invasive non-native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2019 Diane Etchison 
© 2021 Ron Vanderhoff |
|
Elymus farctus Russian wheatgrass
• invasive non-native
Perennial grass 
© 2019 Mark K. Skinner 
© 2019 Mark K. Skinner 
© 2019 Mark K. Skinner |
|
Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley
non-native
Annual herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2011 Steve Matson |
|
Tradescantia fluminensis Small leaf spiderwort
non-native
Perennial herb 
© 2018 Amy Rapport 
© 2016 David Greenberger 
© 2019 David Greenberger |
|
Tragopogon dubius Goat's beard, Yellow salsify
• invasive non-native
Perennial herb 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt 
© 2020 Alaine Arslan |
|
Tragopogon porrifolius Purple salsify
non-native
Perennial herb 
© 2019 Julie dinsdale 
© 2015 David Wolfson 
© 2020 Martin Cooper |
|
Tribulus terrestris Puncture vine, Puncturevine
• invasive non-native
Annual herb 
© 2015 Steve Matson 
© 2015 Steve Matson 
© 2020 Ron Vanderhoff |
|
Trifolium angustifolium Narrow leaved clover, Narrowleaf crimson clover
non-native
Annual herb 
© 2019 Gary McDonald 
© 2021 Mary Gerbic 
© 2022 SMCP NRM Intern |
|
Trifolium dubium Shamrock clover, Little Hop Clover, Suckling clover
non-native
Annual herb 
© 2018 Stacie Wolny 
© 2022 Dana York 
© 2017 MCOSD EDRR |
|
Trifolium striatum Knotted clover
non-native
Annual herb 
© 2023 R.A. Chasey 
© 2007 Keir Morse 
© 2023 Ellen Uhler |
|
Trifolium subterraneum Sub clover, Subterranean clover
non-native
Annual herb 
© 2017 Steve Matson 
© 2008 Steve Matson 
© 2024 Alaine Arslan |
|
Tropaeolum majus Garden nasturtium, Nasturtium
• invasive non-native
Annual herb, Vine 
© 2021 Julie A. Kierstead 
© 2024 Mike Russler 
© 2020 Jennifer Mo |
|
Ulmus parvifolia Chinese elm, Siberian elm
non-native
Tree 
© 2021 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Ulmus pumila Siberian elm
• invasive non-native
Tree 
© 2020 Ron Vanderhoff 
© 2015 Steve Matson 
© 2021 Donald Burk |
|
Urospermum picroides Bristly tail seed, Prickly goldenfleece
non-native
Annual, Perennial herb 
© 2019 David Greenberger 
© 2014 Toni Corelli 
© 2019 Toni Corelli |
|
Ventenata dubia North africa grass, Ventenata grass
• invasive non-native
Annual grass 
© 2022 Donald Burk  © 2011 Steve Matson  © 2011 Steve Matson |
|
Verbascum blattaria Moth mullein
non-native
Perennial herb 
© 2024 Mike Russler 
© 2019 Marisa Persaud 
© 2019 Patrick Furtado |
|
Verbascum virgatum Wand mullein
non-native
Perennial herb 
© 2019 Jerry Thornton 
© 2022 Amber Bedgood 
© 2021 Mike Russler |
|
Verbena bonariensis Purple top vervain, Purpletop vervain
• invasive non-native
Annual, Biennial herb 
© 2014 Judy and Barry Breckling 
© 2003 Gerald Carr 
© 2003 Gerald Carr |
|
Verbena litoralis Seashore vervain
• invasive non-native
Biennial, Perennial herb 
© 2024 Alaine Arslan 
© 2011 Barry Brekcking 
© 2021 David popp |
|
Vicia villosa Hairy vetch, Hairy Vetch, Winter Vetch
• invasive non-native
Annual herb, Vine 
© 2025 Mary Ann Machi 
© 2017 Gary McDonald 
© 2024 Ron Vanderhoff |
|
Viscum album European mistletoe
• invasive non-native
Shrub (parasitic) 
© 2019 Susan McDougall 
© 2019 Susan McDougall  © 2007 François Meignant |
|
Vitex agnus-castus Lilac chastetree
non-native
Tree, Shrub 
© 2023 Olesya Konovalova  © gurious 
© 2023 Olesya Konovalova |
|
Vitis vinifera Cultivated grape, Wine grape
non-native
Vine, Shrub 
© 2020 Jennifer Mo  © 2022 docprt  © 2013 Jean Pawek |
|
Volutaria canariensis Canary island knapweed
non-native
Annual herb |
|
Volutaria tubuliflora Egyptian knapweed
• invasive non-native
Annual herb 
© 2017 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Lynn Sweet |
|
Zygophyllum fabago Syrian beancaper
• invasive non-native
Perennial herb 
© 2013 Daniel Gluesenkamp  © 2001 CDFA  © 2023 jennywilder |
