Indian Knob
Indian Knob Area, Guidetti Ranch San Luis Obispo County, California San Luis Obispo County |
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| David Keil / CNPS-SLO (2019-06-09) |
| 328 PLANTS |
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Acmispon americanus var. americanus American bird's foot trefoil, American trefoil, Spanish lotus
native
Annual herb  2019 Ron Vanderhoff
 2019 Matt Berger
 2017 David Wolfson
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Acmispon glaber var. glaber Deerweed
native
Perennial herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
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Acmispon junceus var. biolettii Bioletti's rush lotus
native
Perennial herb  2021 Toni Corelli
 2021 Toni Corelli
 2021 Toni Corelli
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Acmispon parviflorus Hill lotus
native
Annual herb  2019 Ron Vanderhoff
 2005 Steve Matson
 2005 Steve Matson
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Acmispon strigosus Strigose lotus
native
Annual herb  2016 Steve Matson
 2009 Steve Matson
 2019 Gary McDonald
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Acmispon wrangelianus Wrangel lotus
native
Annual herb  2021 Jamie Spielmann
 2018 Gary McDonald
 2022 Richard Sullivan
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Acourtia microcephala Sacapellote
native
Perennial herb  2022 Diane Etchison
 2019 Ron Vanderhoff
 2014 Diane Etchison
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native
Tree, Shrub  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2019 Gary McDonald
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Adiantum jordanii Adiantum, maiden hair fern
native
Fern  2022 BOB CASE
 2019 Ron Vanderhoff
 2023 Mike Russler
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Agoseris grandiflora var. grandiflora Giant mountain dandelion
native
Perennial herb  2007 Gerald Carr
 2007 Gerald Carr
 2021 Emily Sluiman
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Agrostis exarata Spike bentgrass, Spike redtop
native
Perennial grass  2022 Teal Derrer
 2021 David popp
 2022 John Rawlings
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Agrostis hooveri Hoover's bent grass, Hoover's bentgrass
• rare native
Perennial grass  2008 Adonis (Don) Tate
 2017 Adonis (Don) Tate
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Agrostis pallens Leafy bent grass, Seashore bentgrass, Thingrass
native
Perennial grass  2021 John Rawlings
 2020 Susan McDougall
 2021 John Rawlings
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Aira caryophyllea Shiver grass, Silver hairgrass, Silvery hairgrass
• invasive non-native
Annual grass  2019 Gary McDonald
 2019 Gary McDonald
 2005 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 intermedia Common fiddleneck
native
Annual herb  2020 Matt Berger
 2019 Ron Vanderhoff
 2021 David popp
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Anaphalis margaritacea Pearly everlasting
native
Perennial herb  2020 Bob Sweatt
 2021 Ken Lunders
 2014 James Gonsman
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Antirrhinum kelloggii Climbing snapdragon, Kellogg's snapdragon, Lax snapdragon
native
Annual herb  2020 Ron Vanderhoff
 2019 David Greenberger
 2019 Ron Vanderhoff
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Antirrhinum nuttallianum ssp. subsessile Nuttall's snapdragon
native
Annual, Perennial herb  2017 Steve Matson
 2017 Steve Matson
 2014 Steve Matson
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native
Perennial herb  2018 Michael Mitchell
 Geoff Burleigh
 2016 Kristin Sabo
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Apiastrum angustifolium Mock parsley, Wild celery, Wild parsley
native
Annual herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
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Arctostaphylos pilosula La panza manzanita, Santa Margarita manzanita
• rare native
Shrub  2020 David Greenberger
 2020 Mike Russler
 2020 Mike Russler
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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  2013 Brent Morgan
 2022 Ron Vanderhoff
 2021 Mike Russler
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Artemisia dracunculus Herbaceous sagewort, Pinon wormwood, Tarragon
native
Perennial herb  2013 BOB CASE
 2019 Ron Vanderhoff
 2021 Helen Hancock
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Asclepias eriocarpa Indian milkweed, Kotolo milkweed, Woolypod milkweed
native
Perennial herb  2017 Diane Etchison
 2019 Cliff Halverson
 2014 Dan Cohn
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Asclepias fascicularis Narrow leaf milkweed
native
Perennial herb  2018 Ron Vanderhoff
 2014 Steve Matson
 2019 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 Ron Vanderhoff
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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
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Briza maxima Big quaking grass, Big quakinggrass, Rattlesnake grass
• invasive non-native
Annual grass  2017 Gary McDonald
 2018 Bill Schmidt
 2017 Gary McDonald
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Briza minor Little quaking grass, Little quakinggrass, Little rattlesnake grass
non-native
Annual grass  2022 Alice Cummings
 2019 Gary McDonald
 2019 Gary McDonald
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Bromus carinatus var. carinatus California brome, Mountain brome
native
Perennial grass  2016 Richard Chasey
 2013 Jean Pawek
 2021 Amelia Ryan
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Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass
• invasive non-native
Annual grass  2022 Ron Vanderhoff
 2021 Richard Spjut
 2022 Ron Vanderhoff
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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 rubens Red brome
• invasive non-native
Annual grass  2015 Chris Jaster
 2015 jamie smith
 2018 Gary McDonald
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Calochortus albus White fairy lantern, White globe lily
native
Perennial herb  2019 David Greenberger
 2019 Cynthia Powell
 2009 Bob Case
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Calochortus obispoensis San luis mariposa lily
• rare native
Perennial herb (bulb)  2023 Morgan Stickrod
 2020 Meghan Lindt
 2018 Margarita Orlova
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Calystegia macrostegia ssp. cyclostegia Coast morning glory, Island false bindweed
native
Perennial herb, Vine  2017 Michael Mitchell
 2020 James Gonsman
 2017 Michael Mitchell
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Camissoniopsis micrantha Spencer primrose
native
Annual herb  2021 Ken-ichi Ueda
 2021 Ken-ichi Ueda
 2023 Julia Markey
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Capsella bursa-pastoris Shepherd's purse
non-native
Annual herb  2008 Steve Matson
 2019 Cynthia Powell
 2022 Doug Allshouse
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Cardamine californica California toothwort, milkmaids
native
Perennial herb  2020 Barbara Peck
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb  2019 Gary McDonald
 2023 Diana Wahl
 2017 Gary McDonald
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Carex barbarae Santa barbara sedge, Valley sedge
native
Perennial grasslike herb  2017 Eric Wrubel, NPS
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
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Carex globosa Round fruit sedge
native
Perennial grasslike herb  2014 Steve Matson
 2014 Steve Matson
 2021 John Rawlings
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Carex praegracilis Clustered field sedge, Field sedge
native
Perennial grasslike herb  2020 Ken Hickman
 2020 John Rawlings
 2020 Steve Matson
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Carex subbracteata Small bract sedge
native
Perennial grasslike herb  2023 Dana York
 2021 John Rawlings
 2023 Ellen Uhler
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Castilleja affinis ssp. affinis Coast indian paintbrush
native
Perennial herb  2006 Steve Matson
 2021 Dylan Neubauer
 2019 Ron Vanderhoff
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Castilleja attenuata Narrow leaved owl's clover, Valley tassels
native
Annual herb  2009 BOB CASE
 2023 R.A. Chasey
 2022 Mike Russler
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Castilleja densiflora ssp. densiflora Dense flower owl's clover, Denseflower indian paintbrush
native
Annual herb  2018 Hayley Ross
 2019 Verna Jigour
 2022 Alice Cummings
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Castilleja densiflora ssp. obispoensis Obispo indian paintbrush, San luis obispo owl's clover
native
Annual herb  2011 CNPS, San Luis Obispo Chapter
 2011 Chris Winchell
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Castilleja exserta ssp. exserta Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover
native
Annual herb  2020 David Greenberger
 2019 Ron Vanderhoff
 2023 R.A. Chasey
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Ceanothus cuneatus var. fascicularis Sand buck brush, Sedgeleaf buckbrush
• rare native
Shrub  2020 David Greenberger
 2012 Neal Kramer
 2022 Cynthia Powell
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Ceanothus impressus var. nipomensis Nipomo mesa ceanothus, Santa barbara ceanothus
native
Shrub  2006 Steve Matson
 2018 Susan McDougall
 2006 Steve Matson
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Ceanothus spinosus Greenbark ceanothus, Redheart
native
Tree, Shrub  2018 Ron Vanderhoff
 2012 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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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
 2007 Carol W. Witham
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Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany
native
Tree, Shrub  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2016 Ron Vanderhoff
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Chondrilla juncea Hogbite, Skeleton weed
• invasive non-native
Perennial herb  2021 George Williams
 2021 Julia Kosowitz
 2021 Bob Sweatt
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Chorizanthe diffusa Diffuse spineflower
native
Annual herb  2022 Irene Rosen
 2020 David Greenberger
 2022 Irene Rosen
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Chorizanthe obovata Spoon sepal spineflower, Spoonsepal spineflower
native
Annual herb  2017 George Butterworth
 2017 Adonis (Don) Tate
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Cirsium occidentale var. occidentale Cobweb thistle, Cobwebby thistle
native
Perennial herb  2022 Suzanne L. Weakley
 2020 Coty Sifuentes-Winter
 2009 Neal Kramer
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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 affinis Chaparral clarkia, Chaparral fairyfan
native
Annual herb  2019 David Greenberger
 2019 Ken Hickman
 2020 Steve Laymon
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Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia
native
Annual herb  2014 Steve Matson
 2019 Joe Engelbrecht
 2021 R.A. Chasey
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Clarkia speciosa ssp. immaculata Pismo clarkia
• rare native
Annual herb  2020 Steve Laymon
 2020 Steve Laymon
 2020 Steve Laymon
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Clarkia unguiculata Elegant clarkia, Mountain garland, Woodland clarkia
native
Annual herb  2019 David Greenberger
 2021 Mike Russler
 2022 Suzanne L. Weakley
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Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb  2008 Steve Matson
 2008 Steve Matson
 2008 Steve Matson
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Clematis ligusticifolia Creek clematis, Western white clematis, Yerba de chiva
native
Perennial herb, Vine  2018 Diane Etchison
 2012 Steve Matson
 2012 Steve Matson
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Clinopodium douglasii Yerba buena
native
Perennial herb  2019 Gary McDonald
 2012 Gary McDonald
 2012 Gary McDonald
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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  2019 James Bailey
 2013 Toni Corelli
 2016 Cynthia Powell
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Cordylanthus rigidus ssp. rigidus Rigid bird's beak, Stiffbranch bird's beak
native
Annual herb  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
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Corethrogyne filaginifolia Common sandaster
native
Perennial herb  2022 Mike Russler
 2018 Ron Vanderhoff
 2019 Diane Etchison
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Cornus sericea ssp. occidentalis Western dogwood
native
Shrub  2019 David Greenberger
 2018 Lynn Overtree
 2020 Susan McDougall
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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  2020 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Crassula tillaea Mediterranean pygmy weed, Moss pygmyweed
non-native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Crocanthemum scoparium peak rush-rose, broom rush-rose
native
Shrub  2020 Stacie Wolny
 2020 Stacie Wolny
 2020 Stacie Wolny
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Croton californicus California croton, Desert croton
native
Perennial herb  2022 Dianne Lake
 2022 Aaron Echols
 2022 Aaron Echols
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Croton setiger Turkey-mullein
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2014 Richard Chasey
|
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Cryptantha clevelandii var. florosa Coastal cryptantha
native
Annual herb  2020 David Greenberger
 2020 Ryan Carle
 2023 Ken-ichi Ueda
|
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Cryptantha microstachys Popcorn flower, Tejon cryptantha
native
Annual herb  2019 Diane Etchison
 2018 Ron Vanderhoff
 2017 Diane Etchison
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Cuscuta californica var. californica California dodder, Chaparral dodder, Short flowered dodder
native
Annual herb, Vine (parasitic)  2021 R.A. Chasey
 2021 Ron Vanderhoff
 2021 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
 2021 Ken Lunders
 2014 James Gonsman
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Cyperus niger Black cyperus, Black flatsedge, Brown cyperus
native
Perennial grasslike herb  2020 Ron Vanderhoff
 2021 Ron Vanderhoff
 2021 Ron Vanderhoff
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Dactylis glomerata Orchard grass, Orchardgrass
• invasive non-native
Perennial grass  2018 Jennifer Mo
 2020 Jim Richards
 2017 Gary McDonald
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Datura stramonium Jimson weed, Jimsonweed
non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2020 Ron Vanderhoff
|
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Daucus pusillus American wild carrot, Rattlesnake weed
native
Annual herb  2019 Diane Etchison
 2022 David Wolfson
 2021 Ken Lunders
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Deinandra increscens ssp. increscens Grassland tarweed
native
Annual herb  2011 George Williams
 2003 Lynn Watson
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Delairea odorata Cape ivy
• invasive non-native
Perennial herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Delphinium parryi ssp. blochmaniae Blochman's larkspur, Dune larkspur
• rare native
Perennial herb  Geoff Burleigh
 Geoff Burleigh
 Geoff Burleigh
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Dendromecon rigida Bush poppy, Tree poppy
native
Shrub  2019 Eliezer Margolis
 2018 Hunter Breck
 2010 Suzanne L. Weakley
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Diplacus aurantiacus var. aurantiacus Orange Bush Monkeyflower
native
Shrub  2023 Bill Kress
 2019 Stacie Wolny
 2019 Gary McDonald
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Dipterostemon capitatus ssp. capitatus Blue dicks
native
Perennial herb  2023 Alaine Arslan
 2008 Steve Matson
 2016 Steve Matson
|
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Distichlis spicata Inland saltgrass, Salt grass, Saltgrass
native
Perennial grass  2020 Matt Berger
 2019 Ron Vanderhoff
 2022 Donald Burk
|
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Dryopteris arguta California wood fern, Coastal wood fern, Shield fern
native
Fern  2018 James Gonsman
 2019 Rebecca Crowe
 2023 Julia Markey
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Dudleya caespitosa Coast dudleya, Sand lettuce
native
Perennial herb  2022 Mary Conway
 2022 Mary Conway
 2022 Cynthia Powell
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Dudleya lanceolata Lanceleaf liveforever, Southern california dudleya
native
Perennial herb  2015 Dee Warenycia
 2020 Steven M Norris
 2020 Steven M Norris
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Dudleya pulverulenta Chalk dudleya
native
Perennial herb  2018 Ron Vanderhoff
 2012 Ann Dalkey
 2020 Julia Markey
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Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass
non-native
Annual grass  2016 Barbara Boethling
 2022 R.A. Chasey
 2008 Zoya Akulova
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Ehrharta calycina Perennial veldt grass, Perennial veldtgrass
• invasive non-native
Perennial grass  2020 David Greenberger
 2019 Ron Vanderhoff
 2018 Ron Vanderhoff
|
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Elymus condensatus Giant wild rye
native
Perennial grass  2020 Ron Vanderhoff
 2022 John Rawlings
 2020 Diane Etchison
|
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Elymus glaucus ssp. glaucus Blue wild rye, Blue wildrye, Western rye grass
native
Perennial grass  2014 Toni Corelli
 2021 Arlee Montalvo
 2022 Ron Vanderhoff
|
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Elymus triticoides Beardless wild rye
native
Perennial grass  2018 Ron Vanderhoff
 2021 Ron Vanderhoff
 2018 Rachelle Gray
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Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb
native
Annual herb  2023 Mary Ann Machi
 2019 Ramona Robison
 2020 Ron Vanderhoff
|
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Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet
native
Perennial herb  2018 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
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Equisetum laevigatum Horsetail, Smooth horsetail, Smooth scouring rush
native
Fern  2020 David popp
 2021 Ron Vanderhoff
 2021 Richard Spjut
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Equisetum telmateia ssp. braunii Giant horse tail, Giant horsetail
native
Fern  2011 Toni Corelli
 2021 Bryant Baker
 2021 Bryant Baker
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Ericameria ericoides California goldenbush, Mock heather
native
Shrub  2021 Mike Russler
 2021 Mike Russler
 2021 Suzanne L. Weakley
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Erigeron bonariensis Flax-leaved horseweed
non-native
Annual herb  2021 Donald Burk
 2017 Gary McDonald
 2023 Ron Vanderhoff
|
|
Erigeron canadensis Canada horseweed
native
Annual herb  2017 Gary McDonald
 2017 Gary McDonald
 2022 Mike Russler
|
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Erigeron philadelphicus Philadelphia fleabane
native
Perennial herb  2023 R.A. Chasey
 2021 R.A. Chasey
 2023 R.A. Chasey
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Eriodictyon altissimum Indian knob mountainbalm
• rare native
Shrub  2020 David Wolfson
 2015 David Wolfson
 2012 David Wolfson
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Eriogonum fasciculatum var. fasciculatum California buckwheat, Eastern mojave buckwheat
native
Shrub  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Eriogonum parvifolium Dune eriogonum, Sea cliff buckwheat, Seacliff buckwheat
native
Shrub  2022 Mary Conway
 2020 Ron Vanderhoff
 2021 Ron Vanderhoff
|
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Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow
native
Shrub  2013 James Gonsman
 2020 Mary Conway
 2020 Ron Vanderhoff
|
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Eriophyllum multicaule Branched woolly sunflower, Many stemmed eriophyllum, Manystem woolly sunflower
native
Annual herb  2020 David Wolfson
 2020 David Greenberger
 2022 David Wolfson
|
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Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree
non-native
Annual herb  2014 Bryan Derr
 2017 Gary McDonald
 2015 Ken Lunders
|
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Erodium brachycarpum Foothill filaree, Short fruited filaree, Shortfruit stork's bill
• invasive non-native
Annual herb  2016 Bob van Duinen
 2020 Angelique Herman
 2016 Steve Matson
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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
 2020 Julia Markey
 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 James Bailey
 2018 Stacie Wolny
|
|
Erysimum capitatum var. capitatum Sanddune wallflower
native
Perennial herb  2019 David Greenberger
 2008 Keir Morse
 2020 Susan McDougall
|
|
Erythranthe floribunda Many flowered monkeyflower
native
Annual herb  2021 Mike Russler
 2019 Diane Etchison
 2021 Mike Russler
|
|
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
 2022 Jennifer Mo
 2014 Steve Matson
|
|
Euphorbia maculata Spotted spurge
non-native
Annual herb  2019 B.J. Dion
 2019 B.J. Dion
 2022 Ron Vanderhoff
|
|
Festuca arundinacea Alta fescue, Reed fescue, Tall fescue
• invasive non-native
Perennial grass  2022 Cynthia Powell
 2020 Robert Steers
 2017 MCOSD EDRR
|
|
Festuca bromoides Brome fescue
non-native
Annual grass  2022 Diana Wahl
 2021 Toni Corelli
 2021 David popp
|
|
Festuca myuros Rattail sixweeks grass
• invasive non-native
Annual grass  2021 Aaron Echols
 2021 Ron Vanderhoff
 2022 John Rawlings
|
|
Festuca octoflora Sixweeks grass
native
Annual grass  2023 R.A. Chasey
 2020 Sara Timby
 2018 Ken Hickman
|
|
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
|
|
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 Ron Vanderhoff
|
|
Galium trifidum ssp. columbianum Threepetal bedstraw
native
Perennial herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
|
|
Gamochaeta ustulata Featherweed
native
Perennial herb  2019 Gary McDonald
 2021 Zoya Akulova-Barlow
 2019 Gary McDonald
|
|
Gastridium phleoides Nit grass
non-native
Annual grass  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2001 Julie Kierstead Nelson
|
|
Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium
• invasive non-native
Annual herb  2021 Al Keuter
 2023 Ron Vanderhoff
 2014 Bryan Derr
|
|
Geranium molle Crane's bill geranium, Dove's foot geranium, Dovefoot geranium
• invasive non-native
Annual, Perennial herb  2008 Steve Matson
 2008 Steve Matson
 2022 Elizabeth Harreschou
|
|
Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush
native
Shrub  2021 Mike Russler
 2021 Mary Conway
 2021 Mary Conway
|
|
Helenium puberulum Rosilla, Sneezeweed
native
Perennial herb  2019 Patrick Furtado
 2013 Toni Corelli
 2015 Stephen Rosenthal
|
|
Heliotropium curassavicum var. oculatum Alkali heliotrope, Seaside heliotrope
native
Perennial herb  2019 Rachelle Gray
 2018 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
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  2019 David Greenberger
 2023 Ken-ichi Ueda
 2020 Ken Hickman
|
|
Hesperomecon linearis Narrowleaf queen poppy
native
Annual herb  2021 Mary Conway
 2021 Mary Conway
 2021 Karen Swift
|
|
Heteromeles arbutifolia Christmas berry, Toyon
native
Shrub  2015 James Gonsman
 2017 Gary McDonald
 2017 Gary McDonald
|
|
Heterotheca grandiflora Telegraph weed, Telegraphweed
native
Annual, Perennial herb  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
|
|
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 brachyantherum ssp. californicum California barley, California meadow barley
native
Perennial grass  2021 Cynthia Powell
 2023 John Rawlings
 2021 John Rawlings
|
|
Hordeum marinum subsp gussoneanum Small Tree-Mallow
|
|
Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley
non-native
Annual grass  2022 Ron Vanderhoff
 2021 Al Keuter
 2021 Ron Vanderhoff
|
|
Horkelia cuneata var. cuneata Wedge leaved horkelia
native
Perennial herb  2020 David Greenberger
 2022 R.A. Chasey
 2021 Mary Conway
|
|
Horkelia cuneata var. puberula Mesa horkelia
• rare native
Perennial herb  2023 Ron Vanderhoff
 2008 Tony Morosco
 2013 Ron Vanderhoff
|
|
Hydrocotyle verticillata Whorled marsh pennywort, Whorled marshpennywort
native
Perennial herb  2013 Ron Vanderhoff
 2020 Robert Byrnes
 2019 David Greenberger
|
|
Hypericum anagalloides Creeping st. john's wort, Tinker's penny
native
Annual, Perennial herb  2019 Bob Sweatt
 2020 Joaquin Hale
 2021 Mike Russler
|
|
Hypochaeris glabra Smooth cat's ear
• invasive non-native
Annual herb  2020 Ron Vanderhoff
 2017 Gary McDonald
 2019 Ron Vanderhoff
|
|
Isolepis cernua Low bulrush
native
Annual grasslike herb  2021 R.A. Chasey
 2023 R.A. Chasey
 2018 Ron Vanderhoff
|
|
Juncus bufonius var. bufonius Toad rush
native
Annual grasslike herb  2021 John Rawlings
 2023 R.A. Chasey
 2019 Ron Vanderhoff
|
|
Juncus occidentalis Rush, Slender juncus, Western rush
native
Perennial grasslike herb  2021 Toni Corelli
 2021 Dick Rawson
 2021 Dick Rawson
|
|
Juncus patens Common rush, Spreading rush
native
Perennial grasslike herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2008 Neal Kramer
|
|
Keckiella cordifolia Climbing penstemon, Heart leaved keckiella, Heartleaf keckiella
native
Shrub  2020 Ron Vanderhoff
 2022 Bryant Baker
 2022 Bryant Baker
|
|
Koeleria gerardii Annual june grass, bristly koeleria
non-native
Annual grass  2023 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 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
|
|
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
 2021 Mike Russler
|
|
Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea
native
Perennial herb  2018 Ron Vanderhoff
 2022 Charles Russell
 2015 Chris Jaster
|
|
Lemna gibba Duckweed, Gibbous duckweed, Swollen duckweed
native
Perennial herb  2020 Ron Vanderhoff
 2021 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed
native
Annual herb  2020 Linda Pardy
 2019 Gary McDonald
 2016 Steve Matson
|
|
Lepidium strictum Peppergrass, Prostrate pepper grass, Upright pepperweed
native
Annual herb  2020 Julie A. Kierstead
 2020 Julie A. Kierstead
 2022 Ron Vanderhoff
|
|
Leptosiphon parviflorus Variable linanthus
native
Annual herb  2008 Keir Morse
 2008 Keir Morse
 2008 Keir Morse
|
|
Lessingia pectinata var. pectinata Valley lessingia
native
Annual herb  2019 Mary Conway
 2012 Terrence Gosliner
 2022 R.A. Chasey
|
|
native
Shrub  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Lithophragma affine Common woodland star, San francisco woodland star, Woodland star
native
Perennial herb  2017 Bonnie Nickel
 2022 Mike Russler
 2019 Diane Etchison
|
|
Logfia filaginoides California cottonrose
native
Annual herb  2019 Steve Matson
 2019 Steve Matson
 2019 Matt Berger
|
|
Logfia gallica Narrowleaf cottonrose
non-native
Annual herb  2015 jamie smith
 2013 Keir Morse
 2017 Barbara Boethling
|
|
Lonicera hispidula Pink honeysuckle
native
Vine, Shrub  2019 Stacie Wolny
 2019 Stacie Wolny
 2021 Bryant Baker
|
|
Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil
• invasive non-native
Perennial herb  2015 Charles Russell
 2019 Nathan Taxel
 2005 Dr. Amadej Trnkoczy
|
|
Lupinus arboreus Coastal bush lupine, Yellow bush lupine
native
Shrub  2019 Patrick Furtado
 2014 Steve Matson
 2020 Steve Matson
|
|
Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine
native
Annual, Perennial herb  2022 Mike Russler
 2022 Mike Russler
 2019 Gary McDonald
|
|
Lupinus hirsutissimus Stinging annual lupine, Stinging lupine
native
Annual herb  2020 Bryant Baker
 2020 Bryant Baker
 2019 Ron Vanderhoff
|
|
Lupinus latifolius var. latifolius Broad leaf lupine
native
Perennial herb  2021 John Rawlings
 2020 Paul Aigner
 2021 Steve Matson
|
|
Lupinus ludovicianus San luis lupine, San luis obispo county lupine
• rare native
Perennial herb  2016 Kristie Haydu
 2016 Kristie Haydu
 2012 CNPS, San Luis Obispo Chapter
|
|
Lupinus truncatus Blunt leaved lupine, Collared annual lupine, Truncate leaf lupine
native
Annual herb  2010 Michael Mitchell
 2010 Michael Mitchell
 2008 Keir Morse
|
|
Luzula subsessilis Pacific woodrush
native
Perennial grasslike herb  2021 David popp
 2021 David popp
 2021 David popp
|
|
Lysimachia arvensis Scarlet pimpernel
non-native
Annual herb  2017 B.J. Dion
 2022 Chris McDonald
 2023 Ron Vanderhoff
|
|
Lythrum hyssopifolia Hyssop loosestrife
• invasive non-native
Annual, Perennial herb  2019 Diane Etchison
 2021 Cynthia Powell
 2020 Ron Vanderhoff
|
|
Madia gracilis Grassy tarweed, Gumweed madia, Slender tarweed
native
Annual herb  2022 Mike Russler
 2021 Amber Bedgood
 2019 Ron Vanderhoff
|
|
Madia sativa Chile tarweed, Coast tarweed, Coastal tarweed
native
Annual herb  2013 Ron Vanderhoff
 2021 David Wolfson
 2021 Zoya Akulova-Barlow
|
|
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 Karen Scheuermann
 2021 Cyril Guyot
 2018 Gary McDonald
|
|
Marrubium vulgare White horehound
• invasive non-native
Perennial herb  ©2013 Gary McDonald
 2015 Diane Etchison
 2018 Nancy Hamlett
|
|
Matricaria discoidea Pineapple weed
native
Annual herb  2008 Steve Matson
 2019 Diane Etchison
 2018 Stacie Wolny
|
|
Medicago lupulina Black medick
non-native
Annual, Perennial herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Medicago polymorpha Bur clover, Bur medic, California burclover
• invasive non-native
Annual herb  2019 Gary McDonald
 2019 Gary McDonald
 2019 Gary McDonald
|
|
Medicago praecox Mediterranean medick
non-native
Annual herb  2012 Jean Pawek
 2022 David popp
 2012 Jean Pawek
|
|
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
|
|
Melilotus indicus Annual yellow sweetclover, Sourclover
non-native
Annual herb  2019 Randy Huey
 2019 Randy Huey
 2017 Rosalie Benitez
|
|
Micropus californicus var. californicus Q tips, Slender cottonweed
native
Annual herb  2006 Steve Matson
 2021 Ron Vanderhoff
 null
|
|
• rare native
Annual herb  2016 John Moule
 2020 Melissa Mooney
 2017 Keir Morse
|
|
Muhlenbergia microsperma Annual muhly, Littleseed muhly
native
Annual grass  2017 Ron Vanderhoff
 2019 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Muhlenbergia rigens Deergrass
native
Perennial grass  2004 Steve Matson
 2018 Cynthia Powell
 2022 Ron Vanderhoff
|
|
Muilla maritima Common muilla, Sea muilla
native
Perennial herb  2017 Steve Matson
 2017 Ron Vanderhoff
 2017 Steve Matson
|
|
Nasturtium officinale Watercress
native
Perennial herb (aquatic)  2019 Patrick Furtado
 2019 Diane Etchison
 2012 Steve Matson
|
|
Navarretia atractyloides Holly leaf navarretia, Hollyleaf pincushionplant
native
Annual herb  2019 Diane Etchison
 2010 George Butterworth
 2019 Ken Hickman
|
|
Navarretia hamata ssp. parviloba Hooked navarretia, Small lobe navarretia
native
Annual herb  2022 R.A. Chasey
 2017 R.A. Chasey
 2021 Cara Wilcox
|
|
Nemophila menziesii Baby blue eyes
native
Annual herb  2019 Matt Berger
 2019 Diane Etchison
 2019 Ron Vanderhoff
|
|
Nuttallanthus texanus Blue toadflax
native
Annual, Perennial herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2014 Arcangelo Wessells
|
|
Opuntia ficus-indica Mission cactus, Tuna cactus
non-native
Shrub (stem succulent)  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 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  2020 Marisa Persaud
 2022 Ron Vanderhoff
 2019 Susan McDougall
|
|
Pedicularis densiflora Warrior's plume, Indian warrior
native
Perennial herb  2015 Dee Warenycia
 2019 Jason Mills
 2017 Joshua Borkowski
|
|
Pellaea andromedifolia Coffee cliffbrake, Coffee fern
native
Fern  2021 Mike Russler
 2021 Steve Matson
 2020 Tina Curiel
|
|
Pentagramma triangularis ssp. triangularis Gold back fern
native
Fern  2019 James Gonsman
 2008 Steve Matson
 2008 Steve Matson
|
|
Persicaria punctata Dotted smartweed
native
Perennial herb  2018 Ron Vanderhoff
 2018 Ron Vanderhoff
 2022 Helen Hancock
|
|
Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope
native
Annual herb  2014 Steve Matson
 2014 Steve Matson
 2022 Ron Vanderhoff
|
|
Phacelia imbricata ssp. imbricata Imbricate Phacelia
native
Annual herb  2022 R.A. Chasey
 2022 Robert Steers
 2022 Robert Steers
|
|
Phacelia tanacetifolia Lacy phacelia, Tansy leafed phacelia
native
Annual herb  2022 Mike Russler
 2022 Mike Russler
 2022 Charles Russell
|
|
Phacelia viscida var. viscida Sticky phacelia
native
Annual herb  2017 Gary Andrew
 2017 Keir Morse
 2019 Mary Conway
|
|
Phalaris aquatica Bulbous canarygrass, Harding grass
• invasive non-native
Perennial grass  2018 Thomas Reyes
 2021 Lenihan Mazur
 2022 Lenihan Mazur
|
|
Pholistoma auritum var. auritum Blue fiesta flower, Blue fiestaflower, Fiesta flower
native
Annual herb  2014 Steve Matson
 2014 Steve Matson
 2021 Ron Vanderhoff
|
|
Phoradendron villosum ssp. villosum Mistletoe
native
Shrub (parasitic)  2022 David popp
 2020 R.A. Chasey
 2021 R.A. Chasey
|
|
Pickeringia montana var. montana Montana chaparral pea
native
Shrub  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
Pinus muricata Bishop pine, Bull pine, Prickle cone pine
native
Tree  2012 Michael Mitchell
 2012 Michael Mitchell
 2023 Karen Swift
|
|
Plagiobothrys canescens Grey popcorn flower, Valley popcorn flower, Valley popcornflower
native
Annual herb  2022 Catherine Chang
 2016 Steve Matson
 2016 Steve Matson
|
|
Plantago erecta California plantain, Dotseed plantain, Foothill plantain
native
Annual herb  2021 Charles Russell
 2008 Margo Bors
 2022 Mike Russler
|
|
Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass
• invasive non-native
Perennial herb  2017 Gary McDonald
 2019 Joe Engelbrecht
 2021 Ken Lunders
|
|
Plantago major Common plantain
non-native
Perennial herb  2019 Bob Sweatt
 2022 Diana Wahl
 2020 Ryan Carle
|
|
Plantago subnuda Mexican plantain, Naked plantain, Tall coastal plantain
native
Perennial herb  2019 Patrick Furtado
 2022 Dianne Lake
 2009 Toni Corelli
|
|
Platanus racemosa California sycamore, Western sycamore
native
Tree  2021 Ron Vanderhoff
 2019 Rachelle Gray
 2018 Ron Vanderhoff
|
|
Platystemon californicus Cream cups, Creamcups
native
Annual herb  2019 Diane Etchison
 2022 John L. Thompson
 2022 John L. Thompson
|
|
Polycarpon depressum California allseed, California manyseed, California polycarpon
native
Annual herb  2023 James Bailey
 2023 James Bailey
 2011 Neal Kramer
|
|
Polygonum aviculare Prostrate knotweed
non-native
Annual, Perennial herb  2023 Ron Vanderhoff
 2023 Cynthia Powell
 2021 Ron Vanderhoff
|
|
Polypodium californicum California polypody
native
Fern  2020 Ron Vanderhoff
 2021 Ron Vanderhoff
 2023 Keir Morse
|
|
Polypodium calirhiza Acrid fern, Licorice fern, Nested polypody
native
Fern  2022 R.A. Chasey
 2015 James Gonsman
 2020 Susan McDougall
|
|
Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass
• invasive non-native
Annual grass  2008 Steve Matson
 2014 Steve Matson
 2008 Steve Matson
|
|
Populus trichocarpa Black cottonwood
native
Tree  2019 Ron Vanderhoff
 2012 Steve Matson
 2012 Steve Matson
|
|
Primula clevelandi Small Tree-Mallow
|
|
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
|
|
Pseudognaphalium luteoalbum Jersey cudweed
non-native
Annual herb  2021 Ron Vanderhoff
 2019 Diane Etchison
 2021 Ron Vanderhoff
|
|
Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern
native
Fern  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2022 Bob Sweatt
|
|
Quercus agrifolia var. agrifolia California live oak, Coast live oak
native
Tree  2023 Ron Vanderhoff
 2022 Ron Vanderhoff
 2021 Al Keuter
|
|
Ranunculus californicus California buttercup
native
Perennial herb  2019 Diane Etchison
 2019 Diane Etchison
 2020 Mitchell Coleman
|
|
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
 2012 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 acetosella Common sheep sorrel
• invasive non-native
Perennial herb  2017 Gary McDonald
 2008 Steve Matson
 2019 Patrick Furtado
|
|
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 pulcher Fiddle dock
non-native
Perennial herb  2020 Ryan Carle
 2022 Chris McDonald
 2019 Saul Soto
|
|
Rumex salicifolius var. salicifolius Willow dock, Willow leaved dock
native
Perennial herb  2023 Ron Vanderhoff
 2012 Gary McDonald
 2012 Gary McDonald
|
|
Sagina decumbens ssp. occidentalis Western pearlwort
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
Salix laevigata Polished willow, Red willow
native
Tree  2017 Steve Matson
 2019 Barbara Brydolf
 2022 Mark Gary
|
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub  2017 Susan Kotelnicki
 2022 Ron Vanderhoff
 2020 Steve Matson
|
|
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
|
|
Samolus parviflorus Water pimpernel
native
Perennial herb  2018 Ron Vanderhoff
 2022 Catherine Chang
 2022 Catherine Chang
|
|
Sanicula arguta Sharp toothed sanicle, Sharp toothed snakeroot, Sharptooth blacksnakeroot
native
Perennial herb  2022 Ron Vanderhoff
 2017 Diane Etchison
 2006 Steve Matson
|
|
Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle
native
Perennial herb  2020 Susan McDougall
 2020 Ryan Carle
 2020 R.A. Chasey
|
|
Schinus molle Peruvian pepper tree, Peruvian peppertree
• invasive non-native
Tree  2021 stephen rosenthal
 2017 William McCarey
 2000 Joe DiTomaso
|
|
Scrophularia atrata Black flowered figwort, Darkflowered figwort
• rare native
Perennial herb  2020 David Wolfson
 2018 David Wolfson
 2017 Gloria Hollahan
|
|
Scrophularia californica ssp. californica 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
 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
|
|
Silene laciniata ssp. laciniata Cardinal catchfly
native
Perennial herb  2020 David Greenberger
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Silene verecunda Dolores campion, San francisco campion
native
Perennial herb  2022 Cynthia Powell
 2022 Cynthia Powell
 2021 Dylan Neubauer
|
|
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
|
|
Solanum douglasii Douglas' nightshade, Greenspot nightshade
native
Perennial herb  2022 Ken Lunders
 2006 Steve Matson
 2023 Ron Vanderhoff
|
|
Solidago elongata West coast canada goldenrod
native
Perennial herb  2003 Steve Matson
 2021 Mike Russler
 2022 Steve Matson
|
|
Solidago velutina ssp. californica California goldenrod, Oreja de liebre
native
Perennial herb  2013 Steve Matson
 2008 Steve Matson
 2008 Steve Matson
|
|
Soliva sessilis Common soliva, Field burrweed, South american soliva
non-native
Annual herb  2022 Diana Wahl
 2019 Abbot Chambers
 2019 Abbot Chambers
|
|
Sonchus asper ssp. asper Prickly sow thistle, Sow thistle
• invasive non-native
Annual herb  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle
non-native
Annual herb  2019 Diane Etchison
 2015 Jesse Rorabaugh
 2008 Gary McDonald
|
|
Spergula arvensis Corn spurry
non-native
Annual herb  2019 Diane Etchison
 2020 Mary Conway
 2022 Cynthia Powell
|
|
Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry
non-native
Annual, Perennial herb  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle
native
Perennial herb  2014 Steve Matson
 2014 Steve Matson
 2020 Bryant Baker
|
|
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 elata Annual mitra, Santa barbara stephanomeria, Santa barbara wirelettuce
native
Annual herb  2019 David Greenberger
 2018 Julian Geoghegan
 2021 Helen Hancock
|
|
Stipa miliacea var. miliacea Smilo grass
• invasive non-native
Perennial grass  2022 Donald Burk
 2009 Keir Morse
 2022 Donald Burk
|
|
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
|
|
Symphyotrichum chilense California aster, Pacific aster
native
Perennial herb  2020 Suzanne L. Weakley
 2013 Arcangelo Wessells
 2018 Stacie Wolny
|
|
Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion
• invasive non-native
Perennial herb  2021 Ron Vanderhoff
 2019 Diane Etchison
 2021 Ron Vanderhoff
|
|
Thalictrum fendleri var. fendleri Fendler's meadow rue
native
Perennial herb  2006 Steve Matson
 2014 James Gonsman
 2006 Steve Matson
|
|
Torilis arvensis Field hedge parsley, Spreading hedgeparsley, Tall Sock-Destroyer
• invasive non-native
Annual herb  2019 Ron Vanderhoff
 2018 Gary McDonald
 2018 Lindsey Hack
|
|
Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley
non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2022 R.A. Chasey
|
|
Trichostema lanatum Woolly bluecurls
native
Shrub  2017 Steve Matson
 2017 Steve Matson
 2022 Mike Russler
|
|
Trifolium ciliolatum Foothill clover, Tree clover
native
Annual herb  2020 Diane Etchison
 2015 Diane Etchison
 2019 Ron Vanderhoff
|
|
Trifolium depauperatum var. truncatum Dwarf sack clover
native
Annual herb  2021 Ron Vanderhoff
 2023 Steven Mills Glascock
 2021 Ron Vanderhoff
|
|
Trifolium grayi Gray's clover
native
Annual herb  2007 Toni Corelli
 2007 Toni Corelli
 2023 Matt Berger
|
|
Trifolium hirtum Rose clover
• invasive non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Trifolium incarnatum Crimson clover
non-native
Annual herb  2018 Tim Lewis
 2019 Amy Rapport
 2008 Steve Matson
|
|
Trifolium microcephalum Hairy clover, Small headed clover
native
Annual herb  2005 Steve Matson
 2016 Michael Mitchell
 2019 Ron Vanderhoff
|
|
Trifolium subterraneum Sub clover, Subterranean clover
non-native
Annual herb  2008 Steve Matson
 2023 Ron Vanderhoff
 2008 Steve Matson
|
|
Trifolium variegatum Variegated clover, White tipped clover, Whitetip clover
native
Annual herb  2022 Steve Matson
 2017 Michael Mitchell
 2019 Diane Etchison
|
|
Trifolium willdenovii Tomcat clover
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2018 Stacie Wolny
|
|
Trifolium wormskioldii Coast clover, Cow clover, Cows clover
native
Perennial herb  2015 James Gonsman
 2009 Dr. Mark S. Brunell
 2015 James Gonsman
|
|
Triodanis biflora Venus looking glass, Venus' looking glass
native
Annual herb  2020 Ken Hickman
 2015 Hayley Ross
 2015 Hayley Ross
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Triphysaria eriantha ssp. eriantha Butter 'n' eggs, Johnny tuck
native
Annual herb  2005 Steve Matson
 2021 Steve Matson
 2008 Steve Matson
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Tropidocarpum gracile Dobie pod, Slender keel fruit, Slender tropidocarpum
native
Annual herb  2015 Michael Mitchell
 2019 Gary McDonald
 2022 R.A. Chasey
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Uropappus lindleyi Silver puffs, Uropappus
native
Annual herb  2019 Zack Abbey
 2022 Mary Ann Machi
 2016 Ron Vanderhoff
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Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle
native
Perennial herb  2022 Donald Burk
 2019 Hunter Breck
 2021 R.A. Chasey
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Urtica urens Annual stinging nettle, Dwarf nettle
non-native
Annual herb  2019 Gary McDonald
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
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Vaccinium ovatum California huckleberry, Evergreen huckleberry
native
Shrub  2017 James Gonsman
 2021 Mike Russler
 2023 Diana Wahl
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Verbena lasiostachys var. lasiostachys Vervain, Western vervain
native
Perennial herb  2010 Steve Matson
 2018 Mary Conway
 2018 Mary Conway
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Vicia sativa ssp. nigra Common vetch, Garden vetch, Smaller common vetch
non-native
Annual herb, Vine  2020 Ken Lunders
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
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Vicia villosa ssp. varia Smooth vetch, Thick fruited vetch, Winter vetch
non-native
Annual herb, Vine  2017 Gary McDonald
 2017 Gary McDonald
 2020 Julie A. Kierstead
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Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb  2014 James Gonsman
 2023 Julia Markey
 2023 Richard Sullivan
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Xanthium spinosum Spiny clotbur, Spiny cockleburr
non-native
Annual herb  2017 B.J. Dion
 2021 Lynn Overtree
 2015 Zoya Akulova
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Xanthium strumarium Rough cockleburr
native
Annual herb  2019 Ron Vanderhoff
 2011 Steve Matson
 2019 Ron Vanderhoff
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Zeltnera davyi Davy's centaury
native
Annual herb  2018 Mary Conway
 2022 Irene Rosen
 2023 R.A. Chasey
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