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Pennington Creek Biological Reserve
Pennington Creek Biological Reserve California Polytechnic State University San Luis Obispo County, California San Luis Obispo County |
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| David Keil / CNPS-SLO (2019-06-10) | ||||||
| 189 PLANTS |
|
Achillea millefolium Common yarrow
native
Perennial herb 
2022 Andy Ford
2020 Bob Sweatt
2018 Gary McDonald
|
|
Acmispon brachycarpus hill lotus
native
Annual herb 
2005 Steve Matson
2005 Steve Matson
2018 Steve Matson
|
|
Acmispon junceus var. biolettii Bioletti's rush lotus
native
Perennial herb 
2021 Toni Corelli
2021 Toni Corelli
2021 Toni Corelli
|
|
Acmispon junceus var. junceus Rush lotus
native
Perennial herb 
2016 John Doyen
2016 John Doyen
2016 John Doyen
|
|
Acmispon strigosus Strigose lotus
native
Annual herb 
2016 Steve Matson
2009 Steve Matson
2016 Steve Matson
|
|
native
Tree, Shrub 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
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
|
|
Allium haematochiton Red skinned onion, Redskin onion
native
Perennial herb (bulb) 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Arctostaphylos obispoensis Bishop manzanita, Serpentine manzanita
• rare native
Shrub 
2019 Susan McDougall
2021 Mike Russler
2021 Mike Russler
|
|
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
|
|
Astragalus curtipes Morro milkvetch, San luis obispo milkvetch, South coast milk vetch
native
Perennial herb 
2021 Joel A. Germond, Psy.D.
2020 David Greenberger
2020 David Greenberger
|
|
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
|
|
Bromus carinatus var. marginatus Mountain brome
native
Perennial grass 
2021 Arlee Montalvo
2019 John Rawlings
2021 Arlee Montalvo
|
|
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 rubens Red brome
• invasive non-native
Annual grass 
2015 Chris Jaster
2015 jamie smith
2018 Gary McDonald
|
|
Calandrinia menziesii red maids, Calandrinia
native
Annual herb 
2021 Mary Ann Machi
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Calochortus clavatus var. clavatus Club haired mariposa lily, Clubhair mariposa lily
• rare native
Perennial herb (bulb) 
2020 David Wolfson
2020 David Krause
2023 Mike Russler
|
|
Calochortus obispoensis San luis mariposa lily
• rare native
Perennial herb (bulb) 
2023 Morgan Stickrod
2020 Meghan Lindt
2018 Margarita Orlova
|
|
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
|
|
Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb 
2019 Gary McDonald
2023 Diana Wahl
2017 Gary McDonald
|
|
Carex serratodens Bifid sedge, Two tooth sedge
native
Perennial grasslike herb 
2019 Steve Matson
2019 Steve Matson
2021 Cynthia Powell
|
|
Carex spissa San diego sedge
native
Perennial grasslike herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Castilleja affinis ssp. affinis Coast indian paintbrush
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2019 Ron Vanderhoff
|
|
Castilleja minor ssp. spiralis Lesser indian paintbrush, Lesser paintbrush
native
Annual herb 
2023 Rhonda Allen
2019 Ron Vanderhoff
2019 Matt Berger
|
|
Ceanothus cuneatus var. fascicularis Sand buck brush, Sedgeleaf buckbrush
• rare native
Shrub 
2020 David Greenberger
2012 Neal Kramer
2022 Cynthia Powell
|
|
Ceanothus spinosus Greenbark ceanothus, Redheart
native
Tree, Shrub 
2018 Ron Vanderhoff
2012 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote
• invasive non-native
Annual herb 
2019 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Laura Anna Arellano
|
|
Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant
native
Perennial herb 
2021 Sue Graue
2015 Sharon King & Randy Aeschliman
2018 Karen Scheuermann
|
|
Chorizanthe breweri Brewer's spineflower, San luis obispo spineflower
• rare native
Annual herb 
2020 David Greenberger
2020 David Greenberger
2023 Mike Russler
|
|
Cirsium fontinale var. obispoense Chorro creek bog thistle
• rare native
Perennial herb 
2017 Cindy Roessler
2015 David Wolfson
2020 David Greenberger
|
|
Clarkia bottae Botta's clarkia, Punch bowl godetia
native
Annual herb 
2023 Ron Vanderhoff
2020 Steve Laymon
2020 Steve Laymon
|
|
Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Conium maculatum Poison hemlock
• invasive non-native
Perennial herb 
2019 James Bailey
2013 Toni Corelli
2016 Cynthia Powell
|
|
Cornus sericea ssp. occidentalis Western dogwood
native
Shrub 
2019 David Greenberger
2018 Lynn Overtree
2020 Susan McDougall
|
|
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
|
|
Delphinium parryi ssp. blochmaniae Blochman's larkspur, Dune larkspur
• rare native
Perennial herb 
Geoff Burleigh
Geoff Burleigh
Geoff Burleigh
|
|
Dendromecon rigida Bush poppy, Tree poppy
native
Shrub 
2019 Eliezer Margolis
2018 Hunter Breck
2010 Suzanne L. Weakley
|
|
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
|
|
Dudleya abramsii ssp. murina San Luis Obispo dudleya
• rare native
Perennial herb 
2023 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Dudleya lanceolata Lanceleaf liveforever, Southern california dudleya
native
Perennial herb 
2019 Ron Vanderhoff
2020 Steven M Norris
2020 Steven M Norris
|
|
Elymus condensatus Giant wild rye
native
Perennial grass 
2020 Ron Vanderhoff
2022 John Rawlings
2020 Diane Etchison
|
|
Elymus glaucus ssp. glaucus Blue wild rye, Blue wildrye, Western rye grass
native
Perennial grass 
2014 Toni Corelli
2021 Arlee Montalvo
2022 Ron Vanderhoff
|
|
Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet
native
Perennial herb 
2018 Ron Vanderhoff
2018 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Epilobium ciliatum ssp. ciliatum Fringed willowherb, Northern willow herb, Willow herb
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
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 parvifolium Dune eriogonum, Sea cliff buckwheat, Seacliff buckwheat
native
Shrub 
2022 Mary Conway
2020 Ron Vanderhoff
2021 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
|
|
Erythranthe guttata Seep monkey flower, Yellow monkey flower
native
Annual, Perennial herb (rhizomatous) 
2019 Stacie Wolny
2015 James Gonsman
2019 Stacie Wolny
|
|
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 spathulata Reticulate seeded spurge, Warty spurge
native
Annual herb 
2021 R.A. Chasey
2014 Steve Matson
2014 Steve Matson
|
|
Festuca bromoides Brome fescue
non-native
Annual grass 
2022 Diana Wahl
2021 Toni Corelli
2021 David popp
|
|
Festuca microstachys Small fescue
native
Annual grass 
2022 Aaron Sunshine
2011 Steve Matson
2011 Steve Matson
|
|
Festuca perennis Italian rye grass
• invasive non-native
Annual, Perennial grass 
2019 Ron Vanderhoff
2017 Gary McDonald
2021 Ron Vanderhoff
|
|
Frangula californica ssp. californica California coffeeberry
native
Shrub 
2015 Steve Matson
2015 Steve Matson
2019 Ron Vanderhoff
|
|
Fremontodendron californicum California flannelbush, California fremontia, Flannel bush
native
Shrub 
2020 Suzanne L. Weakley
2019 Diane Etchison
2020 Tom Ballinger
|
|
Fritillaria biflora var. biflora Chocolate lily
native
Perennial herb (bulb) 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Galium angustifolium ssp. angustifolium Narrow leaved bedstraw, Narrowleaf bedstraw
native
Perennial herb 
2017 Steve Matson
2020 Ron Vanderhoff
2017 Steve Matson
|
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb 
2020 Ron Vanderhoff
2005 Steve Matson
2020 Ron Vanderhoff
|
|
Galium californicum ssp. flaccidum California bedstraw
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
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
|
|
Gilia achilleifolia ssp. achilleifolia California gilia
native
Annual herb 
2021 Helen Hancock
2022 R.A. Chasey
2021 Mary Conway
|
|
Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush
native
Shrub 
2021 Mike Russler
2021 Mary Conway
2021 Mary Conway
|
|
Helenium bigelovii Bigelow's sneezeweed, Sneezeweed
native
Perennial herb 
2020 Rebecca Schoenenberger
2019 Bryant Baker
2019 Bob Sweatt
|
|
Hemizonia congesta ssp. luzulifolia Hayfield tarweed, Woodrush tarweed
native
Annual herb 
2013 Arcangelo Wessells
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Hesperevax sparsiflora var. sparsiflora Erect dwarf cudweed, Few flowered evax
native
Annual herb 
2020 Stacie Wolny
2020 R.A. Chasey
2022 R.A. Chasey
|
|
Hesperocyparis sargentii Sargent cypress
native
Tree, Shrub 
2021 Bryant Baker
2021 R.A. Chasey
2021 Bryant Baker
|
|
Hesperolinon micranthum Common dwarf flax, Small flower western flax, Small flowered dwarf flax
native
Annual herb 
2020 David Greenberger
2023 R.A. Chasey
2021 R.A. Chasey
|
|
Hesperoyucca whipplei Chaparral yucca
native
Shrub 
Geoff Burleigh
2023 Jordan Collins
2020 Julia Markey
|
|
Heteromeles arbutifolia Christmas berry, Toyon
native
Shrub 
2015 James Gonsman
2017 Gary McDonald
2017 Gary McDonald
|
|
Holodiscus discolor Cream bush, Ocean spray, Oceanspray
native
Shrub 
2017 Steve Matson
2017 Steve Matson
2022 Steve Matson
|
|
Hordeum marinum Seaside barley
• invasive non-native
Annual grass 
2015 Chris Jaster
2017 Julia Dorosh
2015 Chris Jaster
|
|
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
|
|
Juncus balticus ssp. ater Baltic 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
|
|
Koeleria macrantha June grass, Prairie junegrass
native
Perennial grass 
2023 Helen Hancock
2015 Steve Matson
2015 Steve Matson
|
|
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
|
|
Lasthenia californica ssp. macrantha Perennial goldfields
• rare native
Perennial herb 
2022 R.A. Chasey
2023 Mary Ann Machi
2017 David Greenberger
|
|
Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea
native
Perennial herb 
2023 Steve Conger
2022 Charles Russell
2015 Chris Jaster
|
|
Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed
native
Annual herb 
2021 Steve Matson
2016 Steve Matson
2021 Steve Matson
|
|
Lithophragma heterophyllum Hill star, Hillside woodland star
native
Perennial herb 
2019 David Greenberger
2019 David Magney
2018 Ken Lunders
|
|
Logfia filaginoides California cottonrose
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium, Woollyfruit desertparsley
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Lomatium parvifolium Coastal biscuitroot, Small leaved lomatium
• rare native
Perennial herb 
2020 David Greenberger
2023 Mike Russler
2021 Patrick Furtado
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb 
2006 Steve Matson
2019 Eliezer Margolis
2015 James Gonsman
|
|
Lonicera hispidula Pink honeysuckle
native
Vine, Shrub 
2019 Stacie Wolny
2019 Stacie Wolny
2021 Bryant Baker
|
|
Lupinus albifrons var. collinus Silver bush lupine, Silver lupine, low growing silver lupine
native
Shrub 
2020 Hunter Breck
2021 Steve Matson
2016 Steve Matson
|
|
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
|
|
Marah fabacea California man-root
native
Perennial herb, Vine 
2018 Gary McDonald
2018 MCOSD EDRR
2021 Cyril Guyot
|
|
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 albus White sweetclover
• invasive non-native
Annual, Biennial herb 
2021 Ron Vanderhoff
2020 Bob Sweatt
2022 Ron Vanderhoff
|
|
Microseris douglasii ssp. tenella Douglas' silverpuffs, Short scaled microseris
native
Annual herb 
2022 Helen Hancock
2019 Diane Renshaw
2022 Helen Hancock
|
|
Olea europaea Olive
• invasive non-native
Tree, Shrub 
2022 Donald Burk
2021 Thomas Reyes
2022 Ron Vanderhoff
|
|
Opuntia ficus-indica Mission cactus, Tuna cactus
non-native
Shrub (stem succulent) 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Paeonia californica California peony
native
Perennial herb 
2024 Ron Vanderhoff
2023 Ron Vanderhoff
2019 Susan McDougall
|
|
Pellaea andromedifolia Coffee cliffbrake, Coffee fern
native
Fern 
2023 Steve Conger
2021 Steve Matson
2021 Mike Russler
|
|
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 viscida var. viscida Sticky phacelia
native
Annual herb 
2017 Gary Andrew
2017 Keir Morse
2019 Mary Conway
|
|
Pinus sabiniana Bull pine, California foothill pine, Gray pine
native
Tree 
2022 Cynthia Powell
2019 Cynthia Powell
2021 R.A. Chasey
|
|
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
|
|
Poa secunda ssp. secunda One sided blue grass, Pine bluegrass, Sandberg's bluegrass
native
Perennial grass 
2018 Ron Vanderhoff
2018 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Polypodium californicum California polypody
native
Fern 
2020 Ron Vanderhoff
2021 Ron Vanderhoff
2023 Keir Morse
|
|
Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass
• invasive non-native
Annual grass 
2008 Steve Matson
2014 Steve Matson
2008 Steve Matson
|
|
Primula clevelandi Small Tree-Mallow
|
|
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
|
|
Quercus durata var. durata Leather oak
native
Shrub 
2022 Hunter Breck
2020 Charles Russell
2020 R.A. Chasey
|
|
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
|
|
Rhamnus crocea Redberry buckthorn
native
Shrub 
2011 Michael Mitchell
2022 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Ribes speciosum Fuchsia flowered gooseberry, Fuchsiaflower gooseberry
native
Shrub 
2022 David Chipping
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
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 pulcher Fiddle dock
non-native
Perennial herb 
2020 Ryan Carle
2022 Chris McDonald
2019 Saul Soto
|
|
Sabulina douglasii Douglas' Stitchwort
native
Annual herb 
2022 Steve Matson
2019 Stacie Wolny
2021 R.A. Chasey
|
|
Salix breweri Brewer's willow, Serpentine willow
native
Shrub 
2022 Ryan O'Dell
2021 R.A. Chasey
1997 Dean Wm. Taylor
|
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2020 Steve Matson
|
|
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 bipinnatifida Purple sanicle, Snakeroot, Purple Sanicle, Shoe Buttons
native
Perennial herb 
2019 Diane Etchison
2018 Gary McDonald
2021 Robin Carter
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Sanicula hoffmannii Hoffmann's blacksnakeroot, Hoffmann's sanicle, Hoffmann's snakeroot
• rare native
Perennial herb 
2019 Ken Hickman
2015 David Wolfson
2018 Ken Hickman
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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
|
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Sidalcea malviflora ssp. laciniata Dwarf checkerbloom, Laciniate checker mallow
native
Perennial herb (rhizomatous) 
2020 David Greenberger
2021 Maria Stokes
2021 Heather Brady DeQuincy
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Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene
native
Annual herb 
2019 Ken Hickman
2019 Ken Hickman
2023 Matt Berger
|
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Silene gallica Common catchfly, Windmill pink
non-native
Annual herb 
2019 Mary Wloch
2017 Gary McDonald
2019 Gary McDonald
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Silybum marianum Blessed milkthistle, Milk thistle
• invasive non-native
Annual, Perennial herb 
2020 Nancy Hamlett
2019 Marisa Persaud
2018 Angelique Herman
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Sisyrinchium bellum Western blue eyed grass
native
Perennial herb 
2020 Mary Conway
2024 Ron Vanderhoff
2019 Stacie Wolny
|
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Solanum douglasii Douglas' nightshade, Greenspot nightshade
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
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Solanum umbelliferum var. xanti Blue witch nightshade, Bluewitch nightshade
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
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Solidago velutina ssp. californica California goldenrod, Oreja de liebre
native
Perennial herb 
2013 Steve Matson
2008 Steve Matson
2008 Steve Matson
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Sonchus asper ssp. asper Prickly sow thistle, Sow thistle
• invasive non-native
Annual herb 
2014 Gary McDonald
2022 Ron Vanderhoff
2014 Gary McDonald
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Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle
non-native
Annual herb 
2019 Diane Etchison
2015 Jesse Rorabaugh
2024 Ron Vanderhoff
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Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
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Stachys pycnantha Short spike hedge nettle, Shortspike hedgenettle
native
Perennial herb 
2023 David Wolfson
2019 David Wolfson
2021 Dan Quinn
|
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Stebbinsoseris heterocarpa Grassland stebbinsoseris
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2017 Diane Etchison
|
|
Stellaria media Chickweed
non-native
Annual herb 
2018 Gary McDonald
2018 Gary McDonald
2015 Diane Etchison
|
|
Stellaria pallida Pale starwort
non-native
Annual herb 
2022 Donald Burk
2004 Keir Morse
2004 Keir Morse
|
|
Stephanomeria cichoriacea Chicory leaved stephanomeria, Chicoryleaf wirelettuce, Fort tejon milk aster
native
Perennial herb 
2019 David Greenberger
2012 Ron Vanderhoff
2018 John Game
|
|
Stephanomeria exigua ssp. carotifera White plume stephanomeria, Whiteplume wirelettuce
native
Perennial herb 
2018 Mary Conway
2018 Mary Conway
2018 Mary Conway
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|
Stipa lepida Foothill needle grass
native
Perennial grass 
2017 Gary McDonald
2023 Ron Vanderhoff
2017 Gary McDonald
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|
Stipa pulchra Purple needle grass
native
Perennial grass 
2019 Michelle Karle
2008 Zoya Akulova
2019 Ron Vanderhoff
|
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Streptanthus lasiophyllus Small Tree-Mallow
|
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Symphoricarpos mollis Creeping snowberry, Trailing snowberry
native
Shrub 
2019 Ron Vanderhoff
2020 Cara Wilcox
2019 Ron Vanderhoff
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|
Symphyotrichum chilense California aster, Pacific aster
native
Perennial herb 
2020 Suzanne L. Weakley
2013 Arcangelo Wessells
2018 Stacie Wolny
|
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Thermopsis californica var. californica California goldenbanner
native
Perennial herb (rhizomatous) 
2021 Mike Russler
2015 James Gonsman
2021 Mike Russler
|
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Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod
native
Annual herb 
2021 Helen Hancock
2021 R.A. Chasey
2021 Helen Hancock
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Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley
non-native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
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|
Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak
native
Vine, Shrub 
2020 Ron Vanderhoff
2019 Randy Huey
2021 Bryant Baker
|
|
Toxicoscordion fremontii Fremont's star lily, Fremont's death camas
native
Perennial herb 
2020 Bryant Baker
2021 Steve Matson
2020 Karen Swift
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|
Trifolium bifidum var. decipiens Notch leaf clover
native
Annual herb 
2022 R.A. Chasey
2022 R.A. Chasey
2021 Cameron Chabre
|
|
Trifolium fucatum Bull clover, Sour clover
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2020 Paul Aigner
|
|
Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
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|
Triphysaria pusilla Dwarf owl's clover, Little owl's clover
native
Annual herb 
2018 Steve Matson
2018 Steve Matson
2018 Steve Matson
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|
Umbellularia californica Bay laurel, California bay, California laurel, bay tree
native
Tree 
2023 Mary Ann Machi
2016 Steve Matson
2023 Mary Ann Machi
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|
Uropappus lindleyi Silver puffs, Uropappus
native
Annual herb 
2019 Zack Abbey
2019 Ron Vanderhoff
2016 Ron Vanderhoff
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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
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Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
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