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Islay Hill Open Space
Islay Hill Open Space. San Luis Obispo, California San Luis Obispo County |
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| David Keil / CNPS-SLO (2019-06-07) | ||||||
| 175 PLANTS |
|
Achillea millefolium Common yarrow
native
Perennial herb 
2022 Andy Ford
2020 Bob Sweatt
2018 Gary McDonald
|
|
Achyrachaena mollis Blow-Wives
native
Annual herb 
2015 Diane Etchison
2022 Mike Russler
2022 Mike Russler
|
|
Acmispon brachycarpus hill lotus
native
Annual herb 
2005 Steve Matson
2005 Steve Matson
2018 Steve Matson
|
|
Acmispon glaber var. glaber Deerweed
native
Perennial herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Acmispon strigosus Strigose lotus
native
Annual herb 
2016 Steve Matson
2009 Steve Matson
2016 Steve Matson
|
|
Acourtia microcephala Sacapellote
native
Perennial herb 
2022 Diane Etchison
2019 Ron Vanderhoff
2021 Aaron Echols
|
|
Adiantum jordanii Adiantum, maiden hair fern
native
Fern 
2022 BOB CASE
2019 Ron Vanderhoff
2023 Mike Russler
|
|
Agoseris grandiflora var. grandiflora Giant mountain dandelion
native
Perennial herb 
2007 Gerald Carr
2007 Gerald Carr
2021 Emily Sluiman
|
|
Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed
native
Annual herb 
2020 Ron Vanderhoff
2023 Helen Hancock
2019 Camille Nowell
|
|
Amsinckia menziesii Menzies' fiddleneck, Small flowered fiddleneck
native
Annual herb 
2020 Ron Vanderhoff
2018 Gary McDonald
2018 Gary McDonald
|
|
Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush
native
Shrub 
2018 James Gonsman
2019 Aaron Echols
2018 Ron Vanderhoff
|
|
Artemisia douglasiana California mugwort, Douglas' sagewort
native
Perennial herb 
2022 Ron Vanderhoff
2016 Glen Schneider
2021 Mike Russler
|
|
Avena barbata Slender oat, Slim oat
• invasive non-native
Annual grass 
2018 Julian Geoghegan
2023 David popp
2019 Ron Vanderhoff
|
|
Avena fatua Wild oat, Wildoat
• invasive non-native
Annual grass 
2018 Gary McDonald
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Baccharis pilularis Coyote brush, Dwarf chaparral broom
native
Shrub 
2022 Ryan O'Dell
2021 Ron Vanderhoff: Staminate and pistillate plants in flower.
2018 Cynthia Powell
|
|
Blitum californicum Small Tree-Mallow
|
|
Bloomeria crocea var. crocea Common goldenstar
native
Perennial herb 
2019 Michael Mitchell
2019 Ron Vanderhoff
2017 Aaron Echols
|
|
Brachypodium hybridum Small Tree-Mallow
|
|
Brassica nigra Black mustard
• invasive non-native
Annual herb 
2021 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Brassica rapa Common mustard, Field mustard, Rape mustard
• invasive non-native
Annual herb 
2024 David Wolfson
2021 Diane Etchison
2018 Angelique Herman
|
|
Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass
• invasive non-native
Annual grass 
2022 Ron Vanderhoff
2021 Richard Spjut
2022 Ron Vanderhoff
|
|
Bromus hordeaceus Soft brome, Soft chess
• invasive non-native
Annual grass 
2023 Ron Vanderhoff
2018 Gary McDonald
2018 Gary McDonald
|
|
Bromus madritensis Foxtail chess, foxtail brome, Madrid brome, Spanish brome
non-native
Annual grass 
2022 Steve Matson
2023 Stephen H Siemsen
2015 Chris Jaster
|
|
Bromus maritimus Maritime brome
native
Perennial grass 
2020 Ken Hickman
2016 Richard Chasey
2017 Toni Corelli
|
|
Calandrinia menziesii red maids, Calandrinia
native
Annual herb 
2021 Mary Ann Machi
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Calochortus albus White fairy lantern, White globe lily
native
Perennial herb 
2019 David Greenberger
2019 Cynthia Powell
2009 Bob Case
|
|
Calystegia macrostegia ssp. cyclostegia Coast morning glory, Island false bindweed
native
Perennial herb, Vine 
2017 Michael Mitchell
2020 James Gonsman
2017 Michael Mitchell
|
|
Calystegia subacaulis ssp. episcopalis Cambria morning glory, San luis obispo county morning glory
• rare native
Perennial herb (rhizomatous) 
2019 David Greenberger
2021 Kristen Nelson
2018 Adonis Tate
|
|
Cardamine californica California toothwort, milkmaids
native
Perennial herb 
2020 Barbara Peck
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Cardamine oligosperma Bitter cress, Idaho bittercress
native
Annual, Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb 
2019 Gary McDonald
2023 Diana Wahl
2017 Gary McDonald
|
|
Castilleja affinis ssp. affinis Coast indian paintbrush
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2019 Ron Vanderhoff
|
|
Cenchrus setaceus Small Tree-Mallow
|
|
Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote
• invasive non-native
Annual herb 
2019 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Laura Anna Arellano
|
|
Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed
non-native
Annual herb 
2023 Ron Vanderhoff
2023 Ron Vanderhoff
2023 R.A. Chasey
|
|
Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant
native
Perennial herb 
2021 Sue Graue
2015 Sharon King & Randy Aeschliman
2018 Karen Scheuermann
|
|
Chondrilla juncea Hogbite, Skeleton weed
• invasive non-native
Perennial herb 
2021 George Williams
2021 Julia Kosowitz
2021 Bob Sweatt
|
|
Cirsium vulgare Bull thistle
• invasive non-native
Perennial herb 
2017 James Bailey
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Clarkia unguiculata Elegant clarkia, Mountain garland, Woodland clarkia
native
Annual herb 
2019 David Greenberger
2019 Bryant Baker
2021 Mike Russler
|
|
Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Clematis lasiantha Chaparral clematis, Pipestem
native
Perennial herb, Vine 
2008 Steve Matson
2018 Steve Matson
2018 Steve Matson
|
|
Collinsia heterophylla Purple chinese houses
native
Annual herb 
2022 Mary Ann Machi
2019 David Greenberger
2019 Ron Vanderhoff
|
|
Convolvulus arvensis Field bindweed, Orchard morningglory
• invasive non-native
Perennial herb, Vine 
2022 Steve Matson
2021 Ron Vanderhoff
2022 Steve Matson
|
|
Corethrogyne filaginifolia Common sandaster
native
Perennial herb 
2022 Mike Russler
2018 Ron Vanderhoff
2019 Diane Etchison
|
|
Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed
native
Annual herb 
2020 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Croton setiger Turkey-mullein
native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2014 Richard Chasey
|
|
Cryptantha clevelandii var. florosa Coastal cryptantha
native
Annual herb 
2020 David Greenberger
2020 Ryan Carle
2023 Ken-ichi Ueda
|
|
Danthonia californica California oatgrass
native
Perennial grass 
2020 Sara Timby
2007 Steve Matson
2002 Bart and Susan Eisenberg
|
|
Delphinium parryi ssp. parryi Parry's larkspur, San bernardino larkspur
native
Perennial herb 
2022 Mike Russler
2021 R.A. Chasey
2013 James Gonsman
|
|
Diplacus aurantiacus var. aurantiacus Orange Bush Monkeyflower
native
Shrub 
2023 Bill Kress
2019 Stacie Wolny
2019 Gary McDonald
|
|
Dipterostemon capitatus ssp. capitatus Blue dicks
native
Perennial herb 
2008 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Drymocallis glandulosa var. glandulosa Sticky cinquefoil
native
Perennial herb 
2020 Diane Etchison
2017 Steve Matson
2021 Mike Russler
|
|
Elymus condensatus Giant wild rye
native
Perennial grass 
2020 Ron Vanderhoff
2022 John Rawlings
2020 Diane Etchison
|
|
Elymus triticoides Beardless wild rye
native
Perennial grass 
2018 Ron Vanderhoff
2021 Ron Vanderhoff
2018 Rachelle Gray
|
|
Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb
native
Annual herb 
2023 Mary Ann Machi
2019 Ramona Robison
2020 Ron Vanderhoff
|
|
Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet
native
Perennial herb 
2018 Ron Vanderhoff
2018 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Erigeron bonariensis Flax-leaved horseweed
non-native
Annual herb 
2021 Donald Burk
2017 Gary McDonald
2023 Ron Vanderhoff
|
|
Erigeron foliosus var. foliosus Leafy fleabane, Thread stemmed fleabane
native
Perennial herb, Shrub 
2023 Ron Vanderhoff
2021 Jacob Martin
2022 Ron Vanderhoff
|
|
Eriogonum elongatum var. elongatum Long stemmed buckwheat
native
Perennial herb 
2017 Ron Vanderhoff
2019 Aaron Echols
2021 Mike Russler
|
|
Eriogonum fasciculatum var. fasciculatum California buckwheat, Eastern mojave buckwheat
native
Shrub 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow
native
Shrub 
2013 James Gonsman
2020 Mary Conway
2020 Ron Vanderhoff
|
|
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 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
|
|
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
|
|
Eschscholzia californica California poppy
native
Annual, Perennial herb 
2019 Dee Shea Himes
2021 Ron Vanderhoff
2019 Amy Rapport
|
|
Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta, Spotted hideseed
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Euphorbia peplus Petty spurge
non-native
Annual herb 
2006 Steve Matson
2022 Alice Cummings
2005 Luigi Rignanese
|
|
Euphorbia spathulata Reticulate seeded spurge, Warty spurge
native
Annual herb 
2021 R.A. Chasey
2014 Steve Matson
2014 Steve Matson
|
|
Festuca myuros Rattail sixweeks grass
• invasive non-native
Annual grass 
2021 Aaron Echols
2021 Ron Vanderhoff
2022 John Rawlings
|
|
Festuca perennis Italian rye grass
• invasive non-native
Annual, Perennial grass 
2019 Ron Vanderhoff
2017 Gary McDonald
2021 Ron Vanderhoff
|
|
Foeniculum vulgare Biscuit root, Sweet fennel
• invasive non-native
Perennial herb 
2019 Nicole Leatherman
2019 Ron Vanderhoff
2018 Henry DiRocco
|
|
Frangula californica ssp. californica California coffeeberry
native
Shrub 
2015 Steve Matson
2015 Steve Matson
2019 Ron Vanderhoff
|
|
Fritillaria biflora var. biflora Chocolate lily
native
Perennial herb (bulb) 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb 
2020 Ron Vanderhoff
2005 Steve Matson
2020 Ron Vanderhoff
|
|
Galium porrigens var. porrigens Climbing bedstraw, Graceful bedstraw, Oval leaved bedstraw
native
Vine, Shrub 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2022 Julia Larke
|
|
Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium
• invasive non-native
Annual herb 
2021 Al Keuter
2023 Ron Vanderhoff
2014 Bryan Derr
|
|
Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush
native
Shrub 
2021 Mike Russler
2021 Mary Conway
2021 Mary Conway
|
|
Helminthotheca echioides Bristly ox-tongue
• invasive non-native
Annual, Perennial herb 
2016 Hayley Ross
2019 Rachelle Gray
2012 Elizabeth Brusati
|
|
Hemizonia congesta ssp. luzulifolia Hayfield tarweed, Woodrush tarweed
native
Annual herb 
2013 Arcangelo Wessells
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Hesperocnide tenella Western nettle, Western stinging nettle, Western stingingnettle
native
Annual herb 
2023 Ken-ichi Ueda
2006 Steve Matson
2020 Ken Hickman
|
|
Heteromeles arbutifolia Christmas berry, Toyon
native
Shrub 
2015 James Gonsman
2017 Gary McDonald
2017 Gary McDonald
|
|
Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley
non-native
Annual grass 
2022 Ron Vanderhoff
2021 Al Keuter
2021 Ron Vanderhoff
|
|
Hypochaeris glabra Smooth cat's ear
• invasive non-native
Annual herb 
2020 Ron Vanderhoff
2017 Gary McDonald
2019 Ron Vanderhoff
|
|
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
2017 Gary McDonald
|
|
Lagophylla ramosissima Branched lagophylla, Common hareleaf
native
Annual herb 
2019 Diane Etchison
2021 Dee Shea Himes
2020 Ken Hickman
|
|
Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea
native
Perennial herb 
2023 Steve Conger
2022 Charles Russell
2015 Chris Jaster
|
|
Logfia gallica Narrowleaf cottonrose
non-native
Annual herb 
2017 Barbara Boethling
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb 
2006 Steve Matson
2019 Eliezer Margolis
2015 James Gonsman
|
|
Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine
native
Annual, Perennial herb 
2021 Ken Lunders
2022 Mike Russler
2019 Gary McDonald
|
|
Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine
native
Annual herb 
2023 Andy Ford
2018 Stacie Wolny
2018 Stacie Wolny
|
|
Lysimachia arvensis Scarlet pimpernel
non-native
Annual herb 
2017 B.J. Dion
2022 Chris McDonald
2023 Ron Vanderhoff
|
|
Malva nicaeensis Bull mallow
non-native
Annual herb 
2015 Mike Morales
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Malva parviflora Cheeseweed mallow
non-native
Annual herb 
2022 Mike Russler
2022 Donald Burk
2022 Mike Russler
|
|
Marah fabacea California man-root
native
Perennial herb, Vine 
2018 Gary McDonald
2018 MCOSD EDRR
2021 Cyril Guyot
|
|
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
|
|
Melica californica California melicgrass
native
Perennial grass 
2023 John Rawlings
2021 John Rawlings
2022 John Rawlings
|
|
Melica imperfecta California melic, Coast range melic, Small flowered melica
native
Perennial grass 
2020 Ron Vanderhoff
2021 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Melilotus indicus Annual yellow sweetclover, Sourclover
non-native
Annual herb 
2019 Randy Huey
2019 Randy Huey
2017 Rosalie Benitez
|
|
Monardella villosa ssp. obispoensis San luis obispo coyote mint
native
Perennial herb 
2019 David Wolfson
2019 David Wolfson
2020 Dee Shea Himes
|
|
Nemophila menziesii Baby blue eyes
native
Annual herb 
2019 Matt Berger
2019 Diane Etchison
2019 Ron Vanderhoff
|
|
Oxalis pilosa Hairy wood sorrel
native
Annual herb 
2022 R.A. Chasey
2009 Avis Boutell
2022 Cynthia Powell
|
|
Paeonia californica California peony
native
Perennial herb 
2024 Ron Vanderhoff
2023 Ron Vanderhoff
2019 Susan McDougall
|
|
Papaver rhoeas Corn poppy
non-native
Annual herb 
2019 Nathan Taxel
2021 Mike Russler
2022 R.A. Chasey
|
|
Pellaea andromedifolia Coffee cliffbrake, Coffee fern
native
Fern 
2023 Steve Conger
2021 Steve Matson
2021 Mike Russler
|
|
Pellaea mucronata var. mucronata Bird's foot fern
native
Fern 
2018 Rachelle Gray
2023 Helen Hancock
2023 Helen Hancock
|
|
Pentagramma triangularis ssp. triangularis Gold back fern
native
Fern 
2008 Steve Matson
2008 Steve Matson
2019 Gary McDonald
|
|
Phacelia imbricata ssp. imbricata Imbricate Phacelia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Phacelia malvifolia Stinging phacelia
native
Annual herb 
2018 Michael Mitchell
2022 Jennifer Mo
2013 Toni Corelli
|
|
Pholistoma auritum var. auritum Blue fiesta flower, Blue fiestaflower, Fiesta flower
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
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 
2017 Gary McDonald
2019 Joe Engelbrecht
2021 Ken Lunders
|
|
Platanus racemosa California sycamore, Western sycamore
native
Tree 
2021 Ron Vanderhoff
2018 Ron Vanderhoff
2019 Rachelle Gray
|
|
Platystemon californicus Cream cups, Creamcups
native
Annual herb 
2019 Diane Etchison
2022 John L. Thompson
2022 John L. Thompson
|
|
Polypodium californicum California polypody
native
Fern 
2020 Ron Vanderhoff
2021 Ron Vanderhoff
2023 Keir Morse
|
|
Primula clevelandi Small Tree-Mallow
|
|
Primula clevelandii var. patulum Padre's shooting star
native
Perennial herb 
2006 Steve Matson
2020 Aaron Echols
2023 David Strauch
|
|
Prunus ilicifolia var. ilicifolia Holly leaf cherry, Hollyleaf cherry
native
Tree, Shrub 
2018 David Greenberger
2019 Ron Vanderhoff
2020 James Gonsman
|
|
Pseudognaphalium biolettii Two-color rabbit-tobacco
native
Perennial herb 
2019 David Greenberger
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Pseudognaphalium californicum Ladies' tobacco
native
Annual, Perennial herb 
2019 Gary McDonald
2020 Steven M Norris
2021 Ron Vanderhoff
|
|
Pterostegia drymarioides Fairy mist, Woodland threadstem
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2005 Steve Matson
|
|
Quercus agrifolia var. agrifolia California live oak, Coast live oak
native
Tree 
2023 Ron Vanderhoff
2022 Ron Vanderhoff
2021 Al Keuter
|
|
Rafinesquia californica California chicory, California plumseed
native
Annual herb 
2019 David Greenberger
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 crocea Redberry buckthorn
native
Shrub 
2011 Michael Mitchell
2022 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Rosa californica California wild rose, California wildrose
native
Shrub 
2022 Suzanne L. Weakley
2022 Suzanne L. Weakley
2020 R.A. Chasey
|
|
Rosa spithamea Ground rose, Sonoma rose
native
Shrub 
2021 David Gowen
1973 Geoff Burleigh
2020 David Krause
|
|
Rubus ursinus California blackberry, Pacific blackberry
native
Vine, Shrub 
2018 Ken Lunders
2019 Ron Vanderhoff
2015 Kelli Kallenborn
|
|
Rumex acetosella Common sheep sorrel
• invasive non-native
Perennial herb 
2017 Gary McDonald
2008 Steve Matson
2019 Patrick Furtado
|
|
Rumex crispus Curly dock, Curly leaved dock, Rhubarb
• invasive non-native
Perennial herb 
2018 Tim Lewis
2019 Diane Etchison
2023 Ron Vanderhoff
|
|
Rumex pulcher Fiddle dock
non-native
Perennial herb 
2020 Ryan Carle
2022 Chris McDonald
2019 Saul Soto
|
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub 
2022 Ron Vanderhoff
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
|
|
Saltugilia australis Southern gilia
native
Annual herb 
2015 Ron Vanderhoff
2021 Ron Vanderhoff
2015 Keir Morse
|
|
Salvia columbariae Chia sage
native
Annual herb 
2020 Ron Vanderhoff
2022 Mike Russler
2022 Mike Russler
|
|
Salvia mellifera Black sage
native
Shrub 
2017 Steve Matson
2022 Suzanne L. Weakley
2019 Diane Etchison
|
|
Salvia spathacea Hummingbird sage
native
Perennial herb 
2020 David Wolfson
2020 Abby Nichols
2020 Bryant Baker
|
|
Sambucus nigra ssp. caerulea 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 
2022 Ron Vanderhoff
2017 Diane Etchison
2006 Steve Matson
|
|
Sanicula bipinnata Poison sanicle
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2022 R.A. Chasey
|
|
Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle
native
Perennial herb 
2023 Steve Conger
2023 Steve Conger
2021 Steve Laymon
|
|
Schinus molle Peruvian pepper tree, Peruvian peppertree
• invasive non-native
Tree 
2021 stephen rosenthal
2017 William McCarey
2023 Ron Vanderhoff
|
|
Scrophularia californica ssp. californica California bee plant, California figwort
native
Perennial herb 
2020 Bob Sweatt
2006 Steve Matson
2019 Cynthia Powell
|
|
Scrophularia californica ssp. floribunda California bee plant, California figwort
native
Perennial herb
2020 Bob Sweatt
2006 Steve Matson
2019 Cynthia Powell
|
|
Selaginella bigelovii Bigelow's moss fern, Bigelow's spike moss, Bushy spikemoss
native
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Senecio vulgaris Common groundsel, Old man in the spring, Old man of spring
non-native
Annual herb 
2017 Barbara Boethling
2019 Ron Vanderhoff
2021 Toni Corelli
|
|
Sidalcea malviflora ssp. laciniata Dwarf checkerbloom, Laciniate checker mallow
native
Perennial herb (rhizomatous) 
2020 David Greenberger
2021 Maria Stokes
2021 Heather Brady DeQuincy
|
|
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 officinale Hedge mustard, Hedgemustard
non-native
Annual herb 
2021 Ann Garside
2022 Julian Geoghegan
2021 Ron Vanderhoff
|
|
Sisyrinchium bellum Western blue eyed grass
native
Perennial herb 
2020 Mary Conway
2024 Ron Vanderhoff
2019 Stacie Wolny
|
|
Solanum douglasii Douglas' nightshade, Greenspot nightshade
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Solanum umbelliferum var. xanti Blue witch nightshade, Bluewitch nightshade
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 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
|
|
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 exigua ssp. coronaria Milk aster, White plume wirelettuce, Whiteplume wirelettuce
native
Annual herb 
2014 Bill Thiessen
2013 Robert Sikora
2015 Zoya Akulova
|
|
Stipa lepida Foothill needle grass
native
Perennial grass 
2017 Gary McDonald
2023 Ron Vanderhoff
2017 Gary McDonald
|
|
Stipa pulchra Purple needle grass
native
Perennial grass 
2019 Michelle Karle
2008 Zoya Akulova
2019 Ron Vanderhoff
|
|
Symphoricarpos mollis Creeping snowberry, Trailing snowberry
native
Shrub 
2019 Ron Vanderhoff
2020 Cara Wilcox
2019 Ron Vanderhoff
|
|
Torilis arvensis Field hedge parsley, Spreading hedgeparsley, Tall Sock-Destroyer
• invasive non-native
Annual herb 
2019 Ron Vanderhoff
2017 Gary McDonald
2018 Lindsey Hack
|
|
Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak
native
Vine, Shrub 
2020 Ron Vanderhoff
2019 Randy Huey
2021 Bryant Baker
|
|
Tragopogon porrifolius Purple salsify
non-native
Perennial herb 
2019 Julie dinsdale
2015 David Wolfson
2020 Martin Cooper
|
|
Trifolium willdenovii Tomcat clover
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2018 Stacie Wolny
|
|
Umbellularia californica Bay laurel, California bay, California laurel, bay tree
native
Tree 
2023 Mary Ann Machi
2016 Steve Matson
2023 Mary Ann Machi
|
|
Urtica urens Annual stinging nettle, Dwarf nettle
non-native
Annual herb 
2019 Gary McDonald
2018 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Verbena lasiostachys var. lasiostachys Vervain, Western vervain
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Vicia sativa ssp. sativa Garden vetch, Pubescent common vetch, Spring vetch
non-native
Annual herb, Vine 
2007 Toni Corelli
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Vicia villosa ssp. varia Smooth vetch, Thick fruited vetch, Winter vetch
non-native
Annual herb, Vine  2006 Steve Matson
|
|
Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
