OPTIONS
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Chino Hills SP
San Bernardino County |
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| Sampson, 1985 / California State Parks (1985-01-01) | ||||||
| 307 PLANTS |
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Achnatherum coronatum Crested needle grass
native
Perennial grass 
© 2024 Ron Vanderhoff 
© 2024 Alisa Flint 
© 2019 Rachelle Gray |
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Achyrachaena mollis Blow-Wives
native
Annual herb 
© 2015 Diane Etchison 
© 2021 Cynthia Powell 
© 2022 Mike Russler |
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Acourtia microcephala Sacapellote
native
Perennial herb 
© 2022 Diane Etchison 
© 2019 Ron Vanderhoff 
© 2021 Aaron Echols |
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Adenostoma fasciculatum Chamise
native
Tree, Shrub 
© 2019 Steve Matson 
© 2019 Steve Matson 
© 2019 Steve Matson |
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Agave americana American century plant
non-native
Shrub 
© 2021 Ron Vanderhoff 
© 2017 MCOSD EDRR 
© 2021 Ron Vanderhoff |
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Ailanthus altissima Ailanthus, Tree of heaven
• invasive non-native
Tree 
© 2022 Jenny Gossett 
© 2022 Jenny Gossett 
© 2020 Julie A. Kierstead |
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Amaranthus albus Pigweed amaranth, Tumbleweed
non-native
Annual herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2018 Ron Vanderhoff |
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Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2023 Helen Hancock 
© 2024 Dianne Lake |
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Ambrosia acanthicarpa Annual bursage, Annual burweed
native
Annual herb 
© 2009 Steve Matson 
© 2009 Steve Matson 
© 2013 Steve Matson |
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Ambrosia psilostachya Ragweed, Western ragweed
native
Perennial herb 
© 2021 Mary Ann Machi 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
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Amsinckia menziesii Menzies' fiddleneck, Small flowered fiddleneck
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2022 Catherine Chang 
© 2022 Catherine Chang |
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Amsinckia menziesii var. intermedia Common fiddleneck
native
Annual herb 
© 2020 Matt Berger 
© 2019 Ron Vanderhoff 
© 2021 David popp |
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Anagallis arvensis Scarlet pimpernel
non-native
Annual herb 
© 2017 B.J. Dion 
© 2018 Stacie Wolny 
© 2017 B.J. Dion |
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Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile
• invasive non-native
Annual herb 
© 2017 Diane Etchison 
© 2019 Nathan Taxel 
© 2019 Dave Beller |
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Apium graveolens Smallage, Garden celery
non-native
Annual, Biennial herb 
© 2016 Joan Hampton 
© 2019 Nathan Taxel 
© 2016 Joan Hampton |
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Artemisia biennis Biennial sagewort
non-native
Annual, Perennial herb 
© 2017 Adonis Tate 
© 2017 Ron Vanderhoff 
© 2023 R.A. Chasey |
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Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush
native
Shrub 
© 2018 James Gonsman 
© 2019 Aaron Echols 
© 2018 Ron Vanderhoff |
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Artemisia douglasiana California mugwort, Douglas' sagewort
native
Perennial herb 
© 2022 Ron Vanderhoff 
© 2016 Glen Schneider 
© 2021 Mike Russler |
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Artemisia dracunculus Herbaceous sagewort, Pinon wormwood, Tarragon
native
Perennial herb 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2022 Steve Matson |
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Arundo donax Giant reed
• invasive non-native
Perennial grass 
© 2013 Miriam Sachs Martin 
© 2020 Jennifer Mo 
© 2018 Ron Vanderhoff |
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Asclepias eriocarpa Indian milkweed, Kotolo milkweed, Woolypod milkweed
native
Perennial herb 
© 2023 Ron Vanderhoff 
© 2014 Dan Cohn 
© 2019 Ron Vanderhoff |
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Asclepias fascicularis Narrow leaf milkweed
native
Perennial herb 
© 2010 Steve Matson 
© 2010 Steve Matson 
© 2014 Steve Matson |
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Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed
native
Annual herb 
© 2019 Ron Vanderhoff 
© 2022 Mike Russler 
© 2024 R.A. Chasey |
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Astragalus trichopodus Santa barbara milk vetch, Santa barbara milkvetch
native
Perennial herb 
© 2023 Julia Markey 
© 2017 Steve Matson 
© 2017 Steve Matson |
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Atriplex canescens Fourwing saltbush, Hoary saltbush, Shadscale
native
Shrub 
© 2019 Cynthia Powell 
© 2024 Erin Bergman 
© 2024 Mel Letterman |
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Atriplex semibaccata Australian saltbush
• invasive non-native
Perennial herb 
© 2015 James Bailey 
© 2021 David Wolfson 
© 2020 Ron Vanderhoff |
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Atriplex serenana Bractscale, Saltscale, Tractscale
native
Annual herb 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
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Avena barbata Slender oat, Slim oat
• invasive non-native
Annual grass 
© 2018 Julian Geoghegan 
© 2023 David popp 
© 2019 Ron Vanderhoff |
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Avena fatua Wild oat, Wildoat
• invasive non-native
Annual grass 
© 2018 Gary McDonald 
© 2023 Ron Vanderhoff 
© 2023 Matt Berger |
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Azolla filiculoides American water fern, mosquito fern, Mosquito fern, Pacific mosquitofern
native
Fern 
© 2020 Ron Vanderhoff 
© 2023 R.A. Chasey 
© 2021 Zoya Akulova-Barlow |
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Baccharis emoryi Willow baccharis
native
Shrub 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
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Baccharis salicifolia Mule fat., seep willow, Mule's fat, Mulefat
native
Shrub 
© 2023 Julia Markey 
© 2024 Ron Vanderhoff 
© 2020 Aaron Echols |
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Barbarea orthoceras American rocket, American wintercress, Erectpod wintercress
native
Perennial herb 
© 2015 James Gonsman 
© 2019 Diane Etchison 
© 2020 Diane Etchison |
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Bebbia juncea var. aspera Rough sweetbush
native
Shrub 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2019 Ron Vanderhoff |
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Bidens laevis Bur marigold
native
Perennial herb 
© 2020 Aaron Echols 
© 2016 Barbara Boethling 
© 2018 Ron Vanderhoff |
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Bloomeria crocea Common goldenstar, Golden star
native
Perennial herb 
© 2018 Janith Johnson 
© 2014 Steve Matson 
© 2014 Steve Matson |
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Bowlesia incana Hoary bowlesia
native
Annual herb 
© 2019 Diane Renshaw 
© 2019 Diane Renshaw 
© 2017 Gary McDonald |
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Brassica nigra Black mustard
• invasive non-native
Annual herb 
© 2021 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
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Brassica rapa Common mustard, Field mustard, Rape mustard
• invasive non-native
Annual herb 
© 2024 David Wolfson 
© 2021 Diane Etchison 
© 2018 Angelique Herman |
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Brickellia californica Brickell bush, California brickellbush, California brickellia
native
Shrub 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2023 Helen Hancock |
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Bromus carinatus California brome
native
Perennial grass 
© 2020 Ron Vanderhoff 
© 2022 David popp 
© 2014 Vertin Alvarez |
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Bromus catharticus Rescue grass, Rescuegrass
non-native
Annual, Perennial grass 
© 2016 Andrew Longman 
© 2020 Ramona Robison 
© 2011 Toni Corelli |
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Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass
• invasive non-native
Annual grass 
© Alize 
© 2021 Richard Spjut 
© 2024 David popp |
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Bromus hordeaceus Soft brome, Soft chess
• invasive non-native
Annual grass 
© 2023 Ron Vanderhoff 
© 2018 Gary McDonald 
© 2018 Gary McDonald |
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Bromus madritensis ssp. rubens Red brome
• invasive non-native
Annual grass 
© 2015 Chris Jaster 
© 2015 jamie smith 
© 2018 Gary McDonald |
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Calandrinia ciliata red maids, Calandrinia
native
Annual herb 
© 2021 Mary Ann Machi 
© 2024 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
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Calochortus catalinae Catalina mariposa lily
• rare native
Perennial herb (bulb) 
© 2017 Steve Matson 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
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Calochortus plummerae Plummer's mariposa lily
• rare native
Perennial herb (bulb) 
© 2020 Emily Sluiman 
© 2022 Ron Vanderhoff 
© 2018 David Greenberger |
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Calochortus splendens Splendid mariposa lily
native
Perennial herb 
© 2019 Gordon Jenkins 
© 2024 Ken-ichi Ueda 
© 2021 Jerry Maryniuk |
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Calystegia macrostegia Island false bindweed, Island morning glory
native
Perennial herb, Vine 
© 2020 Steven M Norris 
© 2022 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
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Camissonia intermedia Intermediate sun cups
native
Annual herb 
© 2017 David Greenberger 
© 2016 Erik Larsen 
© 2021 R.A. Chasey |
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Camissonia micrantha Spencer primrose
native
Annual herb 
© 2024 Mike Russler 
© 2021 Cara Wilcox 
© 2023 Ron Vanderhoff |
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Camissonia strigulosa Contorted primrose, Sandysoil suncup, Strigose sun cup
native
Annual herb 
© 2022 Mike Russler 
© 2024 Jacob A 
© 2023 R.A. Chasey |
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Capsella bursa-pastoris Shepherd's purse
non-native
Annual herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2008 Steve Matson |
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Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb 
© 2019 Gary McDonald 
© 2023 Diana Wahl 
© 2023 Ron Vanderhoff |
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Carpobrotus edulis Hottentot fig, Iceplant, Sea fig
• invasive non-native
Perennial herb 
© 2021 Michelle Karle 
© 2017 Lisa Miller 
© 2018 Michael Chasse |
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Castilleja affinis Indian paintbrush
native
Perennial herb 
© 2021 Dylan Neubauer 
© 2019 Diane Etchison 
© 2019 Diane Etchison |
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Castilleja exserta Owl's clover, Purple owl's clover
native
Annual herb 
© 2017 B.J. Dion 
© 2018 Saskia Raether 
© 2019 Diane Etchison |
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Ceanothus cuneatus Buck brush, Wedgeleaf ceanothus
native
Shrub 
© 2021 Steve Matson 
© 2021 Steve Matson 
© 2021 Steve Matson |
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Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote
• invasive non-native
Annual herb 
© 2019 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Laura Anna Arellano |
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Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed
non-native
Annual herb 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 R.A. Chasey |
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Cercocarpus betuloides Birch leaf mountain mahogany, Mountain mahogany
native
Tree, Shrub 
© 2021 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
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Chaenactis glabriuscula Common yellow chaenactis, Yellow pincushion
native
Annual herb 
© 2019 Marisa Persaud 
© 2016 Steve Matson 
© 2019 Marisa Persaud |
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Chamaesyce albomarginata Rattlesnake sandmat
native
Perennial herb 
© 2019 Diane Etchison 
© 2019 Cynthia Powell 
© 2019 Douglas Gordon-Blackwood |
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Chamaesyce maculata Spotted spurge
non-native
Annual herb 
© 2019 B.J. Dion 
© 2019 B.J. Dion 
© 2022 Ron Vanderhoff |
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Chamomilla suaveolens Pineapple weed
native
Annual herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2018 Stacie Wolny |
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Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot
non-native
Annual herb 
© 2022 Ron Vanderhoff 
© 2014 Toni Corelli 
© 2022 Ron Vanderhoff |
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Chenopodium ambrosioides Mexican tea
non-native
Annual, Perennial herb 
© 2020 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
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Chenopodium californicum California goosefoot, Pigweed, Soaproot
native
Perennial herb 
© 2023 Mike Russler 
© 2023 Mike Russler 
© 2023 Mike Russler |
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Chrysanthemum coronarium Crown daisy
• invasive non-native
Annual herb 
© 2019 Nicole Leatherman 
© 2018 Rachelle Gray 
© 2022 Jennifer Mo |
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Cirsium occidentale Cobweb thistle, Western thistle
native
Perennial herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2011 Steve Matson |
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Cirsium vulgare Bull thistle
• invasive non-native
Perennial herb 
© 2017 James Bailey 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt |
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Clarkia bottae Botta's clarkia, Punch bowl godetia
native
Annual herb 
© 2023 Ron Vanderhoff 
© 2020 Steve Laymon 
© 2020 Steve Laymon |
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Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia
native
Annual herb 
© 2014 Steve Matson 
© 2016 Steve Matson 
© 2016 Steve Matson |
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Claytonia perfoliata Miners lettuce, Miner's lettuce, Rooreh (Ohlone)
native
Annual herb 
© 2008 Steve Matson 
© 2019 Gary McDonald 
© 2020 Matt Berger |
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Clematis pauciflora Few flowered clematis, Hill clematis, Ropevine clematis
native
Perennial herb, Vine 
© 2015 Diane Etchison 
© 2019 Ron Vanderhoff 
© 2019 Diane Etchison |
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Cnicus benedictus Blessed thistle
non-native
Annual herb 
© 2019 Kevin Mason 
© 2021 Aaron Echols 
© 2020 Diane Etchison |
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Collinsia heterophylla Purple chinese houses
native
Annual herb 
© 2022 Mary Ann Machi 
© 2019 David Greenberger 
© 2019 Ron Vanderhoff |
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Conium maculatum Poison hemlock
• invasive non-native
Perennial herb 
© 2024 Cynthia Powell 
© 2013 Toni Corelli 
© 2016 Cynthia Powell |
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Convolvulus arvensis Field bindweed, Orchard morningglory
• invasive non-native
Perennial herb, Vine 
© 2022 Steve Matson 
© 2021 Ron Vanderhoff 
© 2022 Steve Matson |
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Conyza bonariensis Flax-leaved horseweed
non-native
Annual herb 
© 2021 Donald Burk 
© 2017 Gary McDonald 
© 2023 Ron Vanderhoff |
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Conyza canadensis Canada horseweed
native
Annual herb 
© 2017 Gary McDonald 
© 2017 Gary McDonald 
© 2022 Mike Russler |
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Cortaderia selloana Uruguayan pampas grass
• invasive non-native
Perennial grass 
© 2023 Cynthia Powell 
© 2023 Randall English 
© 2022 Ron Vanderhoff |
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Cotula australis Australian brass buttons, Australian cotula, Australian waterbuttons
non-native
Annual herb 
© 2023 Mike Russler 
© 2022 Ron Vanderhoff 
© 2023 Mike Russler |
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Cotula coronopifolia Brass buttons, Common brassbuttons
• invasive non-native
Perennial herb 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2018 Adam Chasey |
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Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed
native
Annual herb 
© 2019 Ron Vanderhoff 
© 2022 Sameer Saroa 
© 2019 Adam Chasey |
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Croton californicus California croton, Desert croton
native
Perennial herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2017 Steve Matson |
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Cryptantha intermedia Clearwater cryptantha, Common cryptantha
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
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Cucurbita foetidissima Calabazilla, Missouri gourd, Mock orange
native
Perennial herb, Vine 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2021 Ron Vanderhoff |
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Cuscuta californica California dodder, Chaparral dodder
native
Annual herb, Vine (parasitic) 
© 2019 Ron Vanderhoff 
© 2018 David popp 
© 2019 stephen rosenthal |
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Cynara cardunculus Artichoke thistle, Cardoon
• invasive non-native
Perennial herb 
© 2021 R.A. Chasey 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
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Cynodon dactylon Bermuda grass, Bermudagrass
• invasive non-native
Perennial grass 
© 2021 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
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Cyperus eragrostis Tall cyperus, Tall flatsedge
native
Perennial grasslike herb 
© 2016 Joan Hampton 
© 2024 Ron Vanderhoff 
© 2024 Ron Vanderhoff |
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Datura wrightii Jimsonweed, Sacred thorn apple, Toluaca
native
Perennial herb 
© 2019 Bonnie Nickel 
© 2019 Ron Vanderhoff 
© 2019 Bonnie Nickel |
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Delphinium parryi San bernardino larkspur
native
Perennial herb 
© 2019 Diane Etchison 
© Geoff Burleigh 
© 2019 Diane Etchison |
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Dichelostemma capitatum Blue dicks
native
Perennial herb 
© 2023 Steve Matson 
© 2022 Steve Matson 
© 2019 Steve Matson |
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Dimorphotheca sinuata African daisy, Cape marigold, Glandular cape marigold
• invasive non-native
Annual herb 
© 2024 Donald Burk 
© 2022 Oliver Brewer 
© 2017 Keir Morse |
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Distichlis spicata Inland saltgrass, Salt grass, Saltgrass
native
Perennial grass 
© 2020 Matt Berger 
© 2019 Ron Vanderhoff 
© 2018 Emily Allen |
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Dryopteris arguta California wood fern, Coastal wood fern, Shield fern
native
Fern 
© 2023 Julia Markey 
© 2019 Rebecca Crowe 
© 2018 James Gonsman |
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Dudleya lanceolata Lanceleaf liveforever, Southern california dudleya
native
Perennial herb 
© 2019 Ron Vanderhoff 
© 2020 Steven M Norris 
© 2020 Steven M Norris |
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Dudleya multicaulis Many stemmed dudleya, Manystem liveforever
• rare native
Perennial herb 
© 2009 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2024 Ron Vanderhoff |
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Dudleya pulverulenta Chalk dudleya
native
Perennial herb 
© 2018 Ron Vanderhoff 
© 2020 Julia Markey 
© 2019 Diane Etchison |
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Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass
non-native
Annual grass 
© 2024 R.A. Chasey 
© 2022 R.A. Chasey 
© 2024 R.A. Chasey |
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Eleocharis montevidensis Montevideo spike rush, Sand spikerush
native
Perennial grasslike herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2020 John Rawlings |
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Elymus glaucus Blue wildrye
native
Perennial grass 
© 2020 Denise Defreese 
© 2019 Patrick Furtado 
© 2018 Cynthia Powell |
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Encelia californica Bush sunflower, California brittlebush, California encelia
native
Shrub 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
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Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet
native
Perennial herb 
© 2023 Ron Vanderhoff 
© 2024 R.A. Chasey 
© 2022 Ron Vanderhoff |
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Epilobium ciliatum Fringed willowherb, Northern willow herb, Slender willow herb
native
Perennial herb 
© 2021 stephen rosenthal 
© 2019 Patrick Furtado 
© 2019 Gary McDonald |
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Eremocarpus setigerus Turkey-mullein
native
Annual herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2014 Richard Chasey |
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Eriogonum elongatum var. elongatum Long stemmed buckwheat
native
Perennial herb 
© 2017 Ron Vanderhoff 
© 2019 Aaron Echols 
© 2021 Mike Russler |
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Eriogonum fasciculatum California buckwheat, Eastern mojave buckwheat
native
Shrub 
© 2021 Matthew Grayson 
© 2024 Cynthia Powell 
© 2020 Steven M Norris |
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Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow
native
Shrub 
© 2023 Ryan O'Dell 
© 2013 James Gonsman 
© 2020 Ron Vanderhoff |
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Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill
• invasive non-native
Annual herb 
© 2022 Steve Matson 
© 2008 Steve Matson 
© 2022 Steve Matson |
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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 |
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Eschscholzia californica California poppy
native
Annual, Perennial herb 
© 2019 Dee Shea Himes 
© 2021 Ron Vanderhoff 
© 2019 Amy Rapport |
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Eucalyptus camaldulensis Red gum, Red river gum, River redgum
• invasive non-native
Tree 
© 2024 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Eucalyptus globulus Blue gum, Tasmanian bluegum
• invasive non-native
Tree 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
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Eucrypta chrysanthemifoli var. chrysanthemifolia Small Tree-Mallow
|
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Foeniculum vulgare Biscuit root, Sweet fennel
• invasive non-native
Perennial herb 
© 2019 Ron Vanderhoff 
© 2023 Fred Roberts 
© 2022 Ryan O'Dell |
|
Fraxinus velutina Arizona ash, Velvet ash
native
Tree 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2013 Ron Vanderhoff |
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Galium angustifolium Narrow leaved bedstraw, Narrowleaf bedstraw
native
Perennial herb 
© 2019 Keir Morse 
© 2019 Bonnie Nickel 
© 2017 Diane Etchison |
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2023 Julia Markey 
© 2020 Ron Vanderhoff |
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Gilia capitata ssp. abrotanifolia Ball gilia, Blue field gilia, Bluehead gilia
native
Annual herb 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2016 Steve Matson |
|
Gnaphalium bicolor Two-color rabbit-tobacco
native
Perennial herb 
© 2019 David Greenberger 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Gnaphalium californicum Ladies' tobacco
native
Annual, Perennial herb 
© 2019 Gary McDonald 
© 2020 Steven M Norris 
© 2021 Ron Vanderhoff |
|
Gnaphalium canescens ssp. microcephalum Wright's cudweed
native
Perennial herb 
© 2020 Ron Vanderhoff 
© 2022 David Strauch 
© 2019 Ron Vanderhoff |
|
Gnaphalium luteo-album Jersey cudweed
non-native
Annual herb 
© 2021 Ron Vanderhoff 
© 2019 Diane Etchison 
© 2015 Chris Jaster |
|
Gnaphalium stramineum Cottonbatting plant
native
Perennial herb 
© 2017 Gary McDonald 
© 2017 Gary McDonald 
© 2017 Gary McDonald |
|
Grindelia camporum var. camporum Common gumplant, Great valley gumweed, Gum plant
native
Perennial herb 
© 2023 R.A. Chasey 
© 2019 Ron Vanderhoff 
© 2016 Hayley Ross |
|
Gutierrezia californica California matchweed, Matchweed, snakeweed, San joaquin snakeweed
native
Perennial herb, Shrub 
© 2021 Helen Hancock 
© 2018 Ron Vanderhoff 
© 2021 Mike Russler |
|
Hazardia squarrosa Saw toothed goldenbush, Sawtooth goldenbush
native
Shrub 
© 2021 Mary Conway 
© 2019 Bonnie Nickel 
© 2022 Ron Vanderhoff |
|
Hedypnois cretica Crete weed
non-native
Annual herb 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2022 Steve Matson |
|
Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower
native
Annual herb 
© 2021 Mike Russler 
© 2019 Bob Case 
© 2024 Mel Letterman |
|
Heliotropium curassavicum Chinese parsley, Heliotrope, Salt heliotrope
native
Perennial herb 
© 2022 Mike Russler 
© 2022 Fern Zalin Jones 
© 2022 Mike Russler |
|
Hemizonia fasciculata Clustered tarweed
native
Annual herb 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
|
Hemizonia kelloggii Kellogg's tarweed
native
Annual herb 
© 2023 R.A. Chasey 
© 2024 Mike Russler 
© 2024 Mike Russler |
|
Heteromeles arbutifolia Christmas berry, Toyon
native
Shrub 
© 2015 James Gonsman 
© 2017 Gary McDonald 
© 2022 John Doyen |
|
Hirschfeldia incana Mediterranean hoary mustard, Short podded mustard, Summer mustard
• invasive non-native
Perennial herb 
© 2017 Gary McDonald 
© 2017 Gary McDonald 
© 2022 Ron Vanderhoff |
|
Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley
non-native
Annual grass 
© 2022 Ron Vanderhoff 
© 2021 Al Keuter 
© 2021 Ron Vanderhoff |
|
Hydrocotyle ranunculoides Floating marsh pennywort, Floating marshpennywort, Marsh pennywort
native
Perennial herb 
© 2019 R.A. Chasey 
© 2023 R.A. Chasey 
© 2017 Michael Mitchell |
|
Hypochaeris glabra Smooth cat's ear
• invasive non-native
Annual herb 
© 2020 Ron Vanderhoff 
© 2017 Gary McDonald 
© 2019 Ron Vanderhoff |
|
Isocoma menziesii var. vernonioides Coastal goldenbush, Green leaved dune goldenbush, Menzies' goldenbush
native
Shrub 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Juglans californica Southern black walnut, Southern california walnut, Southern california black walnut
• rare native
Tree 
© 2014 Garth Wadsworth 
© 2022 Aaron Echols 
© 2022 Ron Vanderhoff |
|
Juncus bufonius Common toad rush, Toad rush
native
Annual grasslike herb 
© 2022 Steve Matson 
© 2022 Steve Matson 
© 2022 Steve Matson |
|
Juncus textilis Basket rush
native
Perennial grasslike herb 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Juncus torreyi Torrey's rush
native
Perennial grasslike herb 
© 2015 Steve Matson 
© 2015 Steve Matson 
© 2015 Steve Matson |
|
Juncus xiphioides Iris leaved rush, Irisleaf rush
native
Perennial grasslike herb 
© 2016 Erik Larsen 
© 2017 Ron Vanderhoff 
© 2023 R.A. Chasey |
|
Keckiella antirrhinoides var. antirrhinoides Chaparral beard tongue
native
Shrub 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2020 Diane Etchison |
|
Keckiella cordifolia Climbing penstemon, Heart leaved keckiella, Heartleaf keckiella
native
Shrub 
© 2020 Ron Vanderhoff 
© 2022 Bryant Baker 
© 2022 Bryant Baker |
|
Lactuca serriola Prickly lettuce, Prickly wild lettuce
• invasive non-native
Annual herb 
© 2017 Gary McDonald 
© 2017 Gary McDonald 
© 2017 Gary McDonald |
|
Lamarckia aurea Goldentop grass
non-native
Annual grass 
© 2017 B.J. Dion 
© 2019 Ron Vanderhoff 
© 2015 James Gonsman |
|
Lamium amplexicaule Giraffe head, Henbit deadnettle
non-native
Annual herb 
© 2005 Steve Matson 
© 2005 Steve Matson 
© 2024 Alaine Arslan |
|
Lasthenia californica California goldfields, Common goldfields, Valley goldfields
native
Annual herb 
© 2017 David Greenberger 
© 2020 Susan White 
© 2017 MCOSD EDRR |
|
Lathyrus vestitus Bolander's pea, Common pacific pea, Pacific peavine
native
Perennial herb 
© 2018 Stacie Wolny 
© 2019 Ron Vanderhoff 
© 2019 Steve Conger |
|
Layia platyglossa Coastal tidytips
native
Annual herb 
© 2019 Steve Matson 
© 2019 Steve Matson 
© 2019 Steve Matson |
|
Lemna minor Smaller duckweed
native
Perennial herb 
© 2019 Ron Vanderhoff 
© 2019 Ron Vanderhoff 
© 2022 R.A. Chasey |
|
Lemna minuscula Least duckweed
native
Perennial herb 
© 2022 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Lepidospartum squamatum California broomsage, California broomshrub, Scale broom
native
Shrub 
© 2021 Mike Russler 
© 2021 David Wolfson 
© 2021 Mike Russler |
|
Lessingia filaginifolia Common sandaster
native
Perennial herb 
© 2022 Mike Russler 
© 2018 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Leymus condensatus Giant wild rye
native
Perennial grass 
© 2020 Ron Vanderhoff 
© 2024 Mel Letterman 
© 2020 Diane Etchison |
|
Linanthus bicolor True babystars
native
Annual herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2008 Steve Matson |
|
Lolium perenne Italian rye grass
• invasive non-native
Annual, Perennial grass 
© 2019 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb 
© 2006 Steve Matson 
© 2006 Steve Matson 
© 2015 James Gonsman |
|
Lonicera subspicata var. denudata Chaparral honeysuckle, Johnston's honeysuckle, Santa barbara honeysuckle
native
Shrub 
© 2019 Diane Etchison 
© 2021 Ron Vanderhoff 
© 2019 Diane Etchison |
|
Lotus humistratus hill lotus
native
Annual herb 
© 2023 R.A. Chasey 
© 2018 Steve Matson 
© 2018 Steve Matson |
|
Lotus purshianus var. purshianus American bird's foot trefoil, American trefoil, Spanish lotus
native
Annual herb 
© 2015 Steve Matson 
© 2015 Steve Matson 
© 2015 Steve Matson |
|
Lotus salsuginosus var. salsuginosus Coastal lotus
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Lotus scoparius Deerweed
native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2019 Diane Etchison 
© 2020 Ron Vanderhoff |
|
Lotus strigosus Strigose lotus
native
Annual herb 
© 2024 Mike Russler 
© 2023 Ron Vanderhoff 
© 2016 Steve Matson |
|
Ludwigia peploides Floating primrose willow, Floating water primrose, Marsh purslane
• invasive non-native
Perennial herb 
© 2022 David Strauch 
© 2019 Lenihan Mazur 
© 2021 Ron Vanderhoff |
|
Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine
native
Annual, Perennial herb 
© 2024 Mary Ann Machi 
© 2022 Mike Russler 
© 2024 Mary Ann Machi |
|
Lupinus excubitus Adonis lupine, Grape lupine, Grape soda lupine
native
Shrub 
© Geoff Burleigh 
© 2024 Mike Russler 
© 2022 Richard Spjut |
|
Lupinus sparsiflorus Coulter's lupine, Mohave lupine, Mojave lupine
native
Annual herb 
© 2022 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine
native
Annual herb 
© 2023 Andy Ford 
© 2018 Stacie Wolny 
© 2018 Stacie Wolny |
|
Malacothamnus fasciculatus Chaparral bushmallow, Southern coastal bushmallow
native
Shrub 
© 2020 Aaron Echols 
© 2020 Ron Vanderhoff 
© 2024 Ron Vanderhoff |
|
Malacothrix saxatilis Cliff aster, Cliff desertdandelion
native
Perennial herb 
© 2019 Marisa Persaud 
© 2023 Ron Vanderhoff 
© 2019 Adonis Tate |
|
Malosma laurina Laurel sumac
native
Tree, Shrub 
© 2015 Steven M Norris 
© 2018 susan Bashore 
© 2024 Bonnie Nickel |
|
Malva parviflora Cheeseweed mallow
non-native
Annual herb 
© 2022 Mike Russler 
© 2022 Donald Burk 
© 2022 Mike Russler |
|
Malvella leprosa Alkali mallow
native
Perennial herb 
© 2019 Bonnie Nickel 
© 2019 Bonnie Nickel 
© 2024 Mike Russler |
|
Marah macrocarpus Chilicothe
native
Perennial herb, Vine 
© 2020 David Greenberger 
© 2021 Emily Sluiman 
© 2021 david berman |
|
Marrubium vulgare White horehound
• invasive non-native
Perennial herb 
© ©2013 Gary McDonald 
© 2015 Diane Etchison 
© 2018 Nancy Hamlett |
|
Medicago polymorpha Bur clover, Bur medic, California burclover
• invasive non-native
Annual herb 
© 2019 Gary McDonald 
© 2019 Gary McDonald 
© 2019 Gary McDonald |
|
Medicago sativa Alfalfa
non-native
Perennial herb 
© 2017 Hayley Ross 
© 2020 Bob Sweatt 
© 2017 Hayley Ross |
|
Melia azedarach China berry tree, Chinaberrytree, Persian lilac, china berry
non-native
Tree 
© 2019 Ron Vanderhoff 
© 2022 Donald Burk 
© 2018 Ron Vanderhoff |
|
Melica imperfecta California melic, Coast range melic, Small flowered melica
native
Perennial grass 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Melilotus alba Yellow sweetclover
• invasive non-native
Annual, Biennial herb 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt 
© 2020 Bob Sweatt |
|
Melilotus indica Annual yellow sweetclover, Sourclover
non-native
Annual herb 
© 2019 Randy Huey 
© 2019 Randy Huey 
© 2017 Rosalie Benitez |
|
Mimulus aurantiacus Orange Bush Monkeyflower
native
Shrub 
© 2024 Steve Conger 
© 2024 Steve Conger 
© 2019 Mary Gerbic |
|
Mimulus guttatus Seep monkey flower, Yellow monkey flower
native
Annual, Perennial herb (rhizomatous) 
© 2019 Stacie Wolny 
© 2015 James Gonsman 
© 2019 Stacie Wolny |
|
Mirabilis californica California four o'clock
native
Perennial herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Nassella cernua Nodding needle grass
native
Perennial grass 
© 2018 Liz Block 
© 2022 Ron Vanderhoff 
© 2022 Dianne Lake |
|
Nassella pulchra Purple needle grass
native
Perennial grass 
© 2019 Michelle Karle 
© 2008 Zoya Akulova 
© 2019 Ron Vanderhoff |
|
Nemophila menziesii var. menziesii Baby blue eyes
native
Annual herb 
© 2021 Steve Matson 
© 2021 Steve Matson 
© 2005 Steve Matson |
|
Nicotiana glauca Tree tobacco
• invasive non-native
Tree, Shrub 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
|
Nicotiana quadrivalvis Indian tobacco
native
Annual herb 
© 2023 Melissa Harbert 
© 2019 Michael Mitchell 
© 2024 Mike Russler |
|
Olea europaea Olive
• invasive non-native
Tree, Shrub 
© 2022 Donald Burk 
© 2021 Thomas Reyes 
© 2022 Ron Vanderhoff |
|
Opuntia littoralis Coast prickly pear, Coastal pricklypear, Western prickly pear
native
Shrub (stem succulent) 
© 2019 Diane Etchison 
© 2022 Ron Vanderhoff 
© 2024 Shelly Marshall |
|
Opuntia parryi Brownspined pricklypear, Cane cholla
native
Perennial herb (stem succulent)  © 2009 Thomas Stoughton  © 2009 Stanley Spencer  © 2008 Gary A. Monroe |
|
Oxalis pes-caprae Bermuda buttercup, Sourgrass
• invasive non-native
Perennial herb 
© 2019 Gary McDonald 
© 2017 Angelique Herman 
© 2015 Richard Chasey |
|
Paeonia californica California peony
native
Perennial herb 
© 2024 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2019 Susan McDougall |
|
Parietaria hespera Pelitory, Pellitory, Rillita pellitory
native
Annual herb 
© 2022 Matt Berger 
© 2019 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Paspalum distichum Knot grass, Knotgrass
native
Perennial grass 
© 2011 Steve Matson 
© 2017 Ron Vanderhoff 
© 2024 R.A. Chasey |
|
Pectocarya linearis ssp. ferocula Sagebrush combseed, Slender comb seed, Slender pectocarya
native
Annual herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Pentagramma triangularis ssp. triangularis Gold back fern
native
Fern 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2019 Gary McDonald |
|
Phacelia cicutaria var. hispida Caterpillar phacelia
native
Annual herb 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
|
Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope
native
Annual herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2022 Ron Vanderhoff |
|
Phacelia minor California bluebell, Wild canterbury bells
native
Annual herb 
© 2023 Julia Markey 
© 2023 Julia Markey 
© 2023 Julia Markey |
|
Phacelia ramosissima var. latifolia Branching phacelia
native
Perennial herb 
© 2005 Steve Matson 
© 2022 Rosalind Helfand 
© 2020 Ron Vanderhoff |
|
Phalaris aquatica Bulbous canarygrass, Harding grass
• invasive non-native
Perennial grass 
© 2024 Michael Chasse 
© 2021 Lenihan Mazur 
© 2024 John Rawlings |
|
Phalaris minor Little seed canarygrass, Littleseed canarygrass, Mediterranean canarygrass
non-native
Annual grass 
© 2024 John Rawlings 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Pholistoma auritum Blue fiestaflower, Fiesta flower
native
Annual herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Phoradendron macrophyllum Big leaf mistletoe
native
Shrub (parasitic) 
© 2023 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Pickeringia montana Montana chaparral pea
native
Shrub 
© 2019 Stacie Wolny 
© 2022 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Picris echioides Bristly ox-tongue
• invasive non-native
Annual, Perennial herb 
© 2016 Hayley Ross 
© 2019 Rachelle Gray 
© 2012 Elizabeth Brusati |
|
Pinus halapensis Small Tree-Mallow
|
|
Plagiobothrys nothofulvus Rusty haired popcorn flower, Rusty popcorn flower, Rusty popcornflower
native
Annual herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2015 Steve Matson |
|
Plantago erecta California plantain, Dotseed plantain, Foothill plantain
native
Annual herb 
© 2008 Steve Matson 
© 2022 Steve Matson 
© 2022 Steve Matson |
|
Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass
• invasive non-native
Perennial herb 
© 2008 Steve Matson 
© 2019 Joe Engelbrecht 
© 2021 Ken Lunders |
|
Plantago major Common plantain
non-native
Perennial herb 
© 2019 Bob Sweatt 
© 2022 Diana Wahl 
© 2020 Ryan Carle |
|
Platanus racemosa California sycamore, Western sycamore
native
Tree 
© 2021 Ron Vanderhoff 
© 2018 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Polygonum arenastrum Prostrate knotweed
non-native
Annual, Perennial herb 
© 2016 Barbara Boethling 
© 2021 Ron Vanderhoff 
© 2014 Richard Chasey |
|
Polygonum lapathifolium Common knotweed
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2017 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Polypodium californicum California polypody
native
Fern 
© 2020 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2023 Keir Morse |
|
Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass
non-native
Perennial grass 
© 2022 John Rawlings 
© 2022 John Rawlings 
© 2020 Ron Vanderhoff |
|
Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass
• invasive non-native
Annual grass 
© 2008 Steve Matson 
© 2014 Steve Matson 
© 2008 Steve Matson |
|
Populus fremontii ssp. fremontii Fremont cottonwood
native
Tree 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2020 Ron Vanderhoff |
|
Porophyllum gracile Odora, Slender poreleaf
native
Perennial herb 
© 2019 Matt Berger 
© 2008 Steve Matson 
© 2008 Steve Matson |
|
Potamogeton pusillus Small pondweed
native
Perennial herb (aquatic)  © 2007 Neal Kramer 
© null  © 2013 Jake Ruygt |
|
Pterostegia drymarioides Fairy mist, Woodland threadstem
native
Annual herb 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2005 Steve Matson |
|
Pulicaria paludosa Spanish false fleabane
non-native
Annual, Perennial herb 
© 2011 Keir Morse 
© 2012 Keir Morse 
© 2019 Ron Vanderhoff |
|
Quercus agrifolia var. agrifolia California live oak, Coast live oak
native
Tree 
© 2023 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2021 Al Keuter |
|
Quercus dumosa Coastal sage scrub oak, Nuttall's scrub oak
• rare native
Shrub 
© 2023 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2012 Ron Vanderhoff |
|
Rafinesquia californica California chicory, California plumseed
native
Annual herb 
© 2023 Robert Steers 
© 2021 Ron Vanderhoff 
© 2017 Steve Matson |
|
Ranunculus californicus California buttercup
native
Perennial herb 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2016 Steve Matson |
|
Raphanus sativus Cultivated radish, Jointed charlock, Wild radish
• invasive non-native
Annual, Biennial herb 
© 2017 Lisa Miller 
© 2020 Ron Vanderhoff 
© 2023 Julia Markey |
|
Rhamnus ilicifolia Evergreen buckthorn, Hollyleaf redberry
native
Shrub 
© 2016 Steve Matson 
© 2016 Steve Matson 
© 2006 Steve Matson |
|
Rhus integrifolia Lemonade berry, Lemonade sumac
native
Shrub 
© 2024 Mike Russler 
© 2019 Ron Vanderhoff 
© 2024 Mike Russler |
|
Rhus ovata Sugar bush, Sugar sumac
native
Shrub 
© 2020 Bryant Baker 
© 2020 Bryant Baker 
© 2024 Mike Russler |
|
Rhus trilobata Fragrant sumac, Skunk Bush
native
Shrub 
© 2018 Steve Matson 
© 2018 Steve Matson 
© 2018 Steve Matson |
|
Ribes malvaceum var. viridifolium Chaparral currant
native
Shrub 
© 2012 Ron Vanderhoff 
© Geoff Burleigh 
© 2020 Susan McDougall |
|
Ribes speciosum Fuchsia flowered gooseberry, Fuchsiaflower gooseberry
native
Shrub 
© 2022 David Chipping 
© 2024 Shelly Marshall 
© 2021 Ron Vanderhoff |
|
Ricinus communis Castor bean, Castorbean
• invasive non-native
Shrub 
© 2017 Henry DiRocco 
© 2020 Aaron Echols 
© 2022 Ron Vanderhoff |
|
Rorippa nasturtium-aquat Small Tree-Mallow
|
|
Rorippa palustris var. occidentalis Bog yellowcress
native
Annual, Perennial herb 
© 2017 Ron Vanderhoff 
© 2017 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
|
Rosa californica California wild rose, California wildrose
native
Shrub 
© 2022 Suzanne L. Weakley 
© 2022 Suzanne L. Weakley 
© 2021 Sue Graue |
|
Rubus ursinus California blackberry, Pacific blackberry
native
Vine, Shrub 
© 2018 Ken Lunders 
© 2019 Ron Vanderhoff 
© 2015 Kelli Kallenborn |
|
Rumex conglomeratus Clustered dock, Green dock
non-native
Perennial herb 
© 2020 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff |
|
Rumex crispus Curly dock, Curly leaved dock, Rhubarb
• invasive non-native
Perennial herb 
© 2018 Tim Lewis 
© 2019 Diane Etchison 
© 2023 Ron Vanderhoff |
|
Rumex salicifolius Willow dock, Willow leaved dock
native
Perennial herb 
© 2023 Ron Vanderhoff 
© 2023 Ron Vanderhoff 
© 2023 Helen Hancock |
|
Salix gooddingii Goodding's black willow, Goodding's willow, Gooding's willow
native
Tree 
© 2020 Ron Vanderhoff 
© 2021 Richard Spjut 
© 2020 Ron Vanderhoff |
|
Salix laevigata Polished willow, Red willow
native
Tree 
© 2017 Steve Matson 
© 2017 Steve Matson 
© 2017 Steve Matson |
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub 
© 2019 Steve Matson 
© 2022 Ron Vanderhoff 
© 2020 Steve Matson |
|
Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed
• invasive non-native
Annual herb 
© 2017 Ron Vanderhoff 
© 2018 Angelique Herman 
© 2023 Cynthia Powell |
|
Salvia apiana White sage
native
Shrub 
© 2019 Hannah Garcia 
© 2019 Ron Vanderhoff 
© 2020 Ron Vanderhoff |
|
Salvia columbariae Chia sage
native
Annual herb 
© 2020 Ron Vanderhoff 
© 2022 Mike Russler 
© 2022 Mike Russler |
|
Salvia leucophylla San luis purple sage
native
Shrub 
© 2015 Steven M Norris 
© 2019 Janith Johnson 
© 2018 Ron Vanderhoff |
|
Salvia mellifera Black sage
native
Shrub 
© 2017 Steve Matson 
© 2022 Suzanne L. Weakley 
© 2019 Diane Etchison |
|
Sambucus mexicana Blue elderberry
native
Tree, Shrub 
© 2021 Mike Russler 
© 2020 Diane Etchison 
© 2022 El Byrne |
|
Sanicula arguta Sharp toothed sanicle, Sharp toothed snakeroot, Sharptooth blacksnakeroot
native
Perennial herb 
© 2006 Steve Matson 
© 2006 Steve Matson 
© 2006 Steve Matson |
|
Sanicula bipinnata Poison sanicle
native
Perennial herb 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2022 R.A. Chasey |
|
Sarcostemma cynanchoides ssp. hartwegii Climbing milkweed
native
Perennial herb 
© 2010 Steve Matson 
© 2010 Steve Matson 
© 2025 Mike Russler |
|
Schinus molle Peruvian pepper tree, Peruvian peppertree
• invasive non-native
Tree 
© 2021 stephen rosenthal 
© 2017 William McCarey 
© 2023 Ron Vanderhoff |
|
Schismus barbatus Common mediterranean grass, Old han schismus
• invasive non-native
Annual grass 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff |
|
Scirpus americanus Chairmaker's bulrush
native
Perennial grasslike herb 
© 2021 Ron Vanderhoff 
© 2016 Joan Hampton 
© 2020 Ron Vanderhoff |
|
Scirpus tabernaemontani Softstem bulrush
native
Perennial grasslike herb  © 2008 Louis-M. Landry  © 2005 Louis-M. Landry |
|
Scrophularia californica ssp. floribunda California bee plant, California figwort
native
Perennial herb 
© 2020 Bob Sweatt 
© 2006 Steve Matson 
© 2019 Cynthia Powell |
|
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 |
|
Silene gallica Common catchfly, Windmill pink
non-native
Annual herb 
© 2019 Mary Wloch 
© 2017 Gary McDonald 
© 2019 Gary McDonald |
|
Silybum marianum Blessed milkthistle, Milk thistle
• invasive non-native
Annual, Perennial herb 
© 2020 Nancy Hamlett 
© 2019 Marisa Persaud 
© 2018 Angelique Herman |
|
Sisymbrium irio London rocket
• invasive non-native
Annual herb 
© 2022 Ron Vanderhoff 
© 2022 Ron Vanderhoff 
© 2022 Mike Russler |
|
Sisymbrium orientale Indian hedge mustard, Oriental hedge mustard
non-native
Annual, Perennial herb 
© 2019 Diane Etchison 
© 2021 Paul Aigner 
© 2021 Ron Vanderhoff |
|
Sisyrinchium bellum Western blue eyed grass
native
Perennial herb 
© 2024 Steve Conger 
© 2024 Ron Vanderhoff 
© 2019 Stacie Wolny |
|
Solanum douglasii Douglas' nightshade, Greenspot nightshade
native
Perennial herb 
© 2006 Steve Matson 
© 2024 Mike Russler 
© 2006 Steve Matson |
|
Solanum xanti Chaparral nightshade, Nightshade, Purple nightshade
native
Perennial herb, Shrub 
© 2008 Steve Matson 
© 2008 Steve Matson 
© 2008 Steve Matson |
|
Sonchus asper ssp. asper Prickly sow thistle, Sow thistle
• invasive non-native
Annual herb 
© 2014 Gary McDonald 
© 2022 Ron Vanderhoff 
© 2014 Gary McDonald |
|
Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle
non-native
Annual herb 
© 2019 Diane Etchison 
© 2015 Jesse Rorabaugh 
© 2024 Ron Vanderhoff |
|
Spergularia bocconei Boccone's sand spurry
non-native
Annual herb 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2019 Ron Vanderhoff |
|
Spergularia marina Salt marsh sand spurry
native
Annual herb 
© 2023 Mike Russler 
© 2021 R.A. Chasey 
© 2021 Ron Vanderhoff |
|
Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle
native
Perennial herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Stellaria media Chickweed
non-native
Annual herb 
© 2018 Gary McDonald 
© 2018 Gary McDonald 
© 2015 Diane Etchison |
|
Stephanomeria virgata Rod wirelettuce, Tall stephanomeria, Twiggy wreath plant
native
Annual herb 
© 2022 Cynthia Powell 
© 2019 Steven M Norris 
© 2022 Helen Hancock |
|
Stylomecon heterophylla Wind poppy
native
Annual herb 
© 2017 Gary McDonald 
© 2014 Stephen Rosenthal 
© 2014 Ruth Ann Pearsons |
|
Symphoricarpos mollis Creeping snowberry, Trailing snowberry
native
Shrub 
© 2022 Dana York 
© 2020 Cara Wilcox 
© 2019 Ron Vanderhoff |
|
Tamarix ramosissima Saltcedar, Tamarisk
• invasive non-native
Tree, Shrub 
© 2025 richard mcneill 
© 2017 Barbara Boethling 
© 2022 Ron Vanderhoff |
|
Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion
• invasive non-native
Perennial herb 
© 2021 Ron Vanderhoff 
© 2019 Diane Etchison 
© 2021 Ron Vanderhoff |
|
Tetradymia comosa Cotton thorn, Hairy horsebrush
native
Shrub 
© 2015 Ron Vanderhoff 
© 2017 Ron Vanderhoff 
© 2014 Ron Vanderhoff |
|
Thysanocarpus curvipes Fringe pod, Fringed pod, Hairy lacepod
native
Annual herb 
© 2019 Steve Matson 
© 2014 Steve Matson 
© 2016 Steve Matson |
|
Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley
non-native
Annual herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2011 Steve Matson |
|
Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak
native
Vine, Shrub 
© 2020 Ron Vanderhoff 
© 2019 Randy Huey 
© 2025 Mike Russler |
|
Trifolium ciliolatum Foothill clover, Tree clover
native
Annual herb 
© 2005 Steve Matson 
© 2005 Steve Matson 
© 2019 Rachelle Gray |
|
Trifolium pratense Red clover
non-native
Perennial herb 
© 2019 David Greenberger 
© 2021 Bob Sweatt 
© 2023 R.A. Chasey |
|
Trifolium willdenovii Tomcat clover
native
Annual herb 
© 2024 Steve Conger 
© 2024 Steve Conger 
© 2018 Stacie Wolny |
|
Typha angustifolia Nail rod, Narrow leaf cattail, Narrowleaf cattail
non-native
Perennial herb (aquatic) 
© 2019 Ron Vanderhoff 
© 2021 Ron Vanderhoff 
© 2021 Ron Vanderhoff |
|
Typha latifolia Broadleaf cattail, Common cattail, Soft flag
native
Perennial herb (aquatic) 
© 2013 Steve Matson 
© 2013 Steve Matson 
© 2013 Steve Matson |
|
Uropappus lindleyi Silver puffs, Uropappus
native
Annual herb 
© 2019 Zack Abbey 
© 2019 Ron Vanderhoff 
© 2016 Ron Vanderhoff |
|
Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle
native
Perennial herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Urtica urens Annual stinging nettle, Dwarf nettle
non-native
Annual herb 
© 2019 Gary McDonald 
© 2018 Ron Vanderhoff 
© 2018 Ron Vanderhoff |
|
Verbena lasiostachys Common verbena, Vervain, Western verbena
native
Perennial herb 
© 2010 Steve Matson 
© 2010 Steve Matson 
© 2010 Steve Matson |
|
Veronica anagallis-aquati Small Tree-Mallow
|
|
Vicia benghalensis Purple vetch, Reddish tufted vetch, Vetch
non-native
Annual herb, Vine 
© 2010 Toni Corelli 
© 2024 Ron Vanderhoff 
© 2019 Diane Etchison |
|
Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb 
© 2014 Steve Matson 
© 2014 Steve Matson 
© 2014 Steve Matson |
|
Vitis girdiana Desert wild grape, Southern california grape
native
Vine, Shrub 
© 2019 Ron Vanderhoff 
© 2020 Ron Vanderhoff 
© 2021 Aaron Echols |
|
Vulpia myuros Rattail sixweeks grass
• invasive non-native
Annual grass 
© 2021 Aaron Echols 
© 2021 Ron Vanderhoff 
© 2022 John Rawlings |
|
Washingtonia filifera California fan palm, Fan palm
native
Tree 
© 2021 Ron Vanderhoff 
© 2020 Brad Hardison  © Douglas |
|
Xanthium spinosum Spiny clotbur, Spiny cockleburr
non-native
Annual herb 
© 2017 B.J. Dion 
© 2021 Lynn Overtree 
© 2017 B.J. Dion |
|
Xanthium strumarium Rough cockleburr
native
Annual herb 
© 2011 Steve Matson 
© 2011 Steve Matson 
© 2011 Steve Matson |
