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Cottonwood Pass
Cottonwood Pass: Southern Diablo Range along Highway 41 corridor, northeastern corner of San Luis Obispo County San Luis Obispo County |
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| David Keil / CNPS-SLO (2019-06-09) | ||||||
| 204 PLANTS |
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Achillea millefolium Common yarrow
native
Perennial herb 
2022 Andy Ford
2020 Bob Sweatt
2018 Gary McDonald
|
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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 wrangelianus Wrangel lotus
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Allium crispum Crinkled onion
native
Perennial herb (bulb) 
2023 Bryant Baker
2017 Joe Engelbrecht
©2012 Gary McDonald
|
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Allium howellii var. howellii Howell's onion
• rare native
Perennial herb (bulb) 
2023 R.A. Chasey
2019 Matt Berger
2019 Matt Berger
|
|
Allophyllum gilioides ssp. gilioides Dense false gilia, Dense false gilyflower
native
Annual herb 
2019 Matt Berger
2021 Helen Hancock
2019 Matt Berger
|
|
Amsinckia intermedia Common fiddleneck
native
Annual herb 
2020 Matt Berger
2019 Ron Vanderhoff
2021 David popp
|
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Amsinckia lycopsoides Bugloss fiddleneck, Tarweed fiddleneck
native
Annual herb 
2021 David popp
2023 Catherine Chang
2022 Catherine Chang
|
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Amsinckia tessellata var. gloriosa Bristly fiddleneck, Large flowered devil's fiddleneck
native
Annual herb 
2024 Ryan O'Dell
2019 Susan McDougall
2018 Richard Spjut
|
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Amsinckia tessellata var. tessellata Bristly fiddleneck, Devil's lettuce
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
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Ancistrocarphus filagineus False neststraw, Woolly fishhooks
native
Annual herb 
2020 Matt Berger
2019 Gerald Carr
2021 Jacob Smith
|
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Androsace elongata ssp. acuta California androsace, California rockjasmine
• rare native
Annual herb 
2023 Catherine Chang
2022 Catherine Chang
2023 Helen Hancock
|
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Antirrhinum ovatum Oval leaved snapdragon
• rare native
Annual herb 
2013 Chris Winchell
2013 Chris Winchell
2022 Mike Russler
|
|
Aphyllon californicum ssp. condensum California broomrape
native
Perennial herb (parasitic) 
2023 Paul Excoffier
|
|
Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush
native
Shrub 
2018 James Gonsman
2019 Aaron Echols
2018 Ron Vanderhoff
|
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Astragalus asymmetricus San joaquin milk vetch, San joaquin milkvetch
native
Perennial herb 
2020 Susan McDougall
2020 Susan McDougall
2023 Catherine Chang
|
|
Astragalus didymocarpus var. didymocarpus Common dwarf milkvetch, Dwarf white milkvetch, Two seeded milk vetch
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
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Astragalus douglasii var. douglasii Douglas's milkvetch
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2022 Mike Russler
|
|
Astragalus oxyphysus Stanislaus milkvetch
native
Perennial herb 
2020 David Greenberger
2016 Steve Matson
2016 Steve Matson
|
|
Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Atriplex coronata var. coronata Crownscale
• rare native
Annual herb 
2023 R.A. Chasey
2023 Cynthia Powell
2021 Cynthia Powell
|
|
Atriplex fruticulosa Ball saltbush, Valley saltbush
native
Perennial herb 
2023 R.A. Chasey
2017 Adam Chasey
2021 Cynthia Powell
|
|
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
|
|
Bowlesia incana Hoary bowlesia
native
Annual herb 
2019 Diane Renshaw
2019 Diane Renshaw
2017 Gary McDonald
|
|
Bromus arizonicus Arizona brome
native
Annual grass 
2017 Neil Uelman
2017 Neil Uelman
2017 Neil Uelman
|
|
Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass
• invasive non-native
Annual grass 
2022 Ron Vanderhoff
2021 Richard Spjut
2022 Ron Vanderhoff
|
|
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 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
|
|
Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb 
2019 Gary McDonald
2023 Diana Wahl
2017 Gary McDonald
|
|
Castilleja exserta ssp. exserta Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover
native
Annual herb 
2020 David Greenberger
2019 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Castilleja subinclusa var. jepsonii Franciscan paint brush, Longleaf indian paintbrush
native
Perennial herb 
2022 Dianne Lake
2022 Zoya Akulova-Barlow
2019 David popp
|
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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
|
|
Centaurea solstitialis Barnaby's thistle, Yellow star thistle
• invasive non-native
Annual herb 
2022 Cynthia Powell
2019 Arlee Montalvo
2022 Mary Herr
|
|
Centromadia pungens ssp. pungens Common tarweed
native
Annual herb 
2022 Cynthia Powell
2021 Mike Russler
2022 Cynthia Powell
|
|
Chaenactis glabriuscula var. glabriuscula Common yellow chaenactis, Yellow pincushion
native
Annual herb 
2020 David Greenberger
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Chaenactis glabriuscula var. megacephala Big headed yellow chaenactis, Yellow pincushion
native
Annual herb 
2017 Ryan Kelly
2017 Ryan Kelly
2009 Barry Breckling
|
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Chaenactis stevioides Desert pincushion, Esteve pincushion
native
Annual herb 
2020 Mitchell Coleman
2019 Matt Berger
2022 Steve Matson
|
|
Chorizanthe biloba var. biloba Two lobed spineflower, Twolobe spineflower
native
Annual herb  2006 Laura Ann Eliassen
 2013 Chris Winchell
 2013 Chris Winchell
|
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Chorizanthe ventricosa Priest valley spineflower
• rare native
Annual herb 
2014 Neal Kramer
2023 Ryan O'Dell
2014 Neal Kramer
|
|
Chorizanthe xanti var. xanti Riverside spineflower, Xantus' spineflower
native
Annual herb 
2021 Mike Russler
2020 Mike Russler
2021 Mike Russler
|
|
Cirsium occidentale var. venustum Cobwebby thistle, Red thistle, Venus thistle
native
Perennial herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Clarkia cylindrica ssp. cylindrica Speckled clarkia
native
Annual herb 
2019 David Greenberger
2019 Bryant Baker
2020 Steve Laymon
|
|
Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia
native
Annual herb 
2014 Steve Matson
2019 Joe Engelbrecht
2021 R.A. Chasey
|
|
Clarkia unguiculata Elegant clarkia, Mountain garland, Woodland clarkia
native
Annual herb 
2019 David Greenberger
2019 Bryant Baker
2021 Mike Russler
|
|
Claytonia exigua ssp. exigua Little spring beauty, Serpentine springbeauty, Viridis
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Collinsia heterophylla Purple chinese houses
native
Annual herb 
2022 Mary Ann Machi
2019 David Greenberger
2019 Ron Vanderhoff
|
|
Collinsia sparsiflora var. collina Hillside collinsia
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2015 Steve Matson
|
|
Conium maculatum Poison hemlock
• invasive non-native
Perennial herb 
2019 James Bailey
2013 Toni Corelli
2016 Cynthia Powell
|
|
Convolvulus simulans Small flowered morning glory
• rare native
Annual herb 
2016 Ron Vanderhoff
2017 James Bailey
2023 David Gowen
|
|
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
|
|
Cryptantha barbigera var. barbigera Bearded cryptantha
native
Annual herb 
2014 Steve Matson
2012 Terrence Gosliner
2014 Steve Matson
|
|
Cryptantha clevelandii var. florosa Coastal cryptantha
native
Annual herb 
2020 David Greenberger
2020 Ryan Carle
2023 Ken-ichi Ueda
|
|
Cryptantha intermedia var. intermedia Common cryptantha
native
Annual herb 
2019 Ron Vanderhoff
2021 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Cryptantha nemaclada Colusa cryptantha
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 Donald Myrick1999 California Academy of Sciences
|
|
Cryptantha nevadensis var. rigida Rigid cryptantha
native
Annual herb 
2016 Bill Thiessen
2019 Mary Merriman
2016 Bill Thiessen
|
|
Cryptantha oxygona Sharp nut cryptantha, Sharpnut cryptantha
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2020 Matt Berger
|
|
Deinandra halliana Hall's tarplant
• rare native
Annual herb 
2023 R.A. Chasey
2023 R.A. Chasey
2023 R.A. Chasey
|
|
Deinandra kelloggii Kellogg's tarweed
native
Annual herb 
2021 Mike Russler
2023 R.A. Chasey
2021 Mike Russler
|
|
Deinandra pallida Kern tarweed
native
Annual herb 
2019 Diane Etchison
2021 Mike Russler
2010 Neal Kramer
|
|
Deinandra pentactis Salinas river tarweed
native
Annual herb 
2015 Richard Spellenberg
2015 Richard Spellenberg
2023 Ryan O'Dell
|
|
Delphinium gypsophilum Gypsum loving larkspur, Pinoche creek larkspur
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Dipterostemon capitatus ssp. capitatus Blue dicks
native
Perennial herb 
2008 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Elymus glaucus ssp. glaucus Blue wild rye, Blue wildrye, Western rye grass
native
Perennial grass 
2014 Toni Corelli
2021 Arlee Montalvo
2022 Ron Vanderhoff
|
|
Elymus multisetus Big squirreltail grass
native
Perennial grass 
2019 Ron Vanderhoff
2023 Helen Hancock
2021 Denise Defreese
|
|
Ephedra viridis Green ephedra, Mormon tea, Mountain ephedra
native
Shrub 
2021 Bryant Baker
2021 Bryant Baker
2021 Bryant Baker
|
|
Eremalche parryi ssp. kernensis Kern mallow
• rare native
Annual herb 
2020 David Greenberger
2018 Sarah Termondt
2023 Mike Russler
|
|
Eremothera boothii ssp. decorticans Shredding evening-primrose
native
Annual herb 
2019 Matt Berger
2020 David Greenberger
2020 Bryant Baker
|
|
Ericameria linearifolia Interior goldenbush, Linear leaved goldenbush, Narrowleaf goldenbush
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Erigeron canadensis Canada horseweed
native
Annual herb 
2017 Gary McDonald
2017 Gary McDonald
2022 Mike Russler
|
|
Eriogonum angulosum Angled stem buckwheat, Anglestem buckwheat
native
Annual herb 
2014 Steve Matson
2016 Steve Matson
2014 Steve Matson
|
|
Eriogonum covilleanum Coville's buckwheat
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Eriogonum elongatum var. elongatum Long stemmed buckwheat
native
Perennial herb 
2017 Ron Vanderhoff
2019 Aaron Echols
2021 Mike Russler
|
|
Eriogonum fasciculatum var. foliolosum California buckwheat, Eastern mojave buckwheat, Red topped buckwheat
native
Shrub 
2016 Michael Mitchell
2015 Michael Mitchell
2015 Michael Mitchell
|
|
Eriogonum fasciculatum var. polifolium California buckwheat, Eastern mojave buckwheat
native
Shrub 
2022 Steve Matson
2022 Steve Matson
2022 Ron Vanderhoff
|
|
Eriogonum nudum var. indictum Naked buckwheat, Protruding buckwheat
• rare native
Perennial herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Eriogonum roseum Wand buckwheat
native
Annual herb 
2019 Matt Berger
2014 Steve Matson
2014 Steve Matson
|
|
Eriogonum temblorense Temblor buckwheat
• rare native
Annual herb 
2023 Matt Berger
2023 Matt Berger
2023 Matt Berger
|
|
Eriogonum viridescens Bright green buckwheat, Twotooth buckwheat
native
Annual herb 
2022 Ryan O'Dell
2019 Matt Berger
2021 Mike Russler
|
|
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 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
|
|
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 cardinalis Cardinal monkey flower
native
Perennial herb 
2014 James Gonsman
2023 Steve Conger
2021 Mike Russler
|
|
Eschscholzia californica California poppy
native
Annual, Perennial herb 
2019 Dee Shea Himes
2021 Ron Vanderhoff
2019 Amy Rapport
|
|
Eschscholzia hypecoides Leafy stemmed poppy, San benito poppy
• rare native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Eschscholzia lemmonii ssp. lemmonii Lemmon's poppy
native
Annual herb 
2023 Ryan O'Dell
2023 Martin Schenker
2023 Ryan O'Dell
|
|
Eschscholzia minutiflora Coville s poppy, Pygmy poppy
native
Annual herb 
2020 Diane Etchison
2022 Steve Matson
2017 Diane Etchison
|
|
Euphorbia spathulata Reticulate seeded spurge, Warty spurge
native
Annual herb 
2021 R.A. Chasey
2014 Steve Matson
2014 Steve Matson
|
|
Festuca microstachys Small fescue
native
Annual grass 
2022 Aaron Sunshine
2011 Steve Matson
2011 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
|
|
Fritillaria agrestis Stinkbells
• rare native
Perennial herb (bulb) 
2023 Catherine Chang
2022 Dee Shea Himes
2021 Damon Tighe
|
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb 
2020 Ron Vanderhoff
2005 Steve Matson
2020 Ron Vanderhoff
|
|
Gilia brecciarum Nevada gilia, Small gilia
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Bob Sweatt
|
|
Gilia tenuiflora ssp. amplifaucalis Greater yellowthroat gilia, Spreading slender flowered gilia
• rare native
Annual herb |
|
Gilia tricolor ssp. diffusa Bird's eye gilia, Bird's eyes
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Gilia tricolor ssp. tricolor Bird's eye gilia, Bird's eyes
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Grindelia hirsutula Gumweed, Hairy gumweed
native
Perennial herb 
2021 R.A. Chasey
2020 R.A. Chasey
2015 Ken Lunders
|
|
Gutierrezia californica California matchweed, Matchweed, snakeweed, San joaquin snakeweed
native
Perennial herb, Shrub 
2021 Helen Hancock
2018 Ron Vanderhoff
2021 Mike Russler
|
|
Hazardia stenolepis Narrow scaled goldenbush, Serpentine bristleweed
native
Shrub (stem succulent) 
2012 George Butterworth
2012 George Butterworth
2011 George Butterworth
|
|
Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower
native
Annual herb 
2019 Bob Case
2019 Bob Case
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
|
|
Hollisteria lanata False spikeflower, False spineflower
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2016 Steve Matson
|
|
Holocarpha heermannii Heermann's tarweed
native
Annual herb 
2018 Richard Spjut
2022 Cynthia Powell
2022 Cynthia Powell
|
|
Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley
non-native
Annual grass 
2022 Ron Vanderhoff
2021 Al Keuter
2021 Ron Vanderhoff
|
|
Hordeum vulgare Common barley
non-native
Annual grass 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Isocoma acradenia var. bracteosa Bracted alkali goldenbush
native
Shrub 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Juniperus californica California juniper
native
Shrub 
2019 Patrick Furtado
2017 Gary McDonald
2014 Ron Vanderhoff
|
|
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
|
|
Lasthenia gracilis Needle goldfields
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Lasthenia minor Coastal goldfields, Smooth lasthenia, Woolly goldfields
native
Annual herb 
2007 Toni Corelli
2019 James Gonsman
2015 Toni Corelli
|
|
Layia glandulosa White layia, White tidy tips, Whitedaisy tidytips
native
Annual herb 
2016 James Gonsman
2021 Mike Russler
2021 Mike Russler
|
|
Layia heterotricha Pale yellow layia, Paleyellow tidytips
• rare native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2018 Sarah Termondt
|
|
Layia munzii Munz's tidy tips, Munz's tidytips
• rare native
Annual herb 
2006 Steve Matson
2015 Craig Fiehler
2006 Steve Matson
|
|
Layia pentachaeta ssp. albida Sierra tidytips, White sierra tidy tips
native
Annual herb 
2024 Mike Russler
2023 Ryan O'Dell
2020 David Greenberger
|
|
Lemna sp. Small Tree-Mallow
|
|
Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed
native
Annual herb 
2021 Steve Matson
2016 Steve Matson
2021 Steve Matson
|
|
Leptosiphon parviflorus Variable linanthus
native
Annual herb 
2008 Keir Morse
2008 Keir Morse
2008 Keir Morse
|
|
Leptosyne bigelovii Bigelow coreopsis
native
Annual herb 
2022 Mike Russler
2020 John L. Thompson
2020 Matt Berger
|
|
Leptosyne calliopsidea Leafy stemmed coreopsis
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Linanthus dichotomus ssp. dichotomus Evening snow
native
Annual herb 
2019 Jacob Smith
2008 Steve Matson
2021 Mike Russler
|
|
Lithophragma parviflorum var. parviflorum Pink woodland star, Smallflower woodland star
native
Perennial herb  2008 Steve Matson
|
|
Logfia filaginoides California cottonrose
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb 
2006 Steve Matson
2019 Eliezer Margolis
2015 James Gonsman
|
|
Lupinus albifrons var. albifrons Silver bush lupine, Silver lupine
native
Shrub 
2012 Michael Mitchell
2020 Richard Spjut
2020 Susan McDougall
|
|
Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine
native
Annual, Perennial herb 
2021 Ken Lunders
2022 Mike Russler
2019 Gary McDonald
|
|
Lupinus microcarpus var. microcarpus Chick lupine, Valley lupine
native
Annual herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine
native
Annual herb 
2023 Andy Ford
2018 Stacie Wolny
2018 Stacie Wolny
|
|
Madia radiata Golden madia, Showy madia
• rare native
Annual herb 
2023 Jacob Smith
2016 George Butterworth
2016 George Butterworth
|
|
Malacothrix coulteri Snake's head
native
Annual herb 
2020 David Greenberger
2020 Matt Berger
2020 David Greenberger
|
|
Malacothrix floccifera Woolly dandelion, Woolly desertdandelion, Woolly malacothrix
native
Annual herb 
2019 David Greenberger
2020 David Greenberger
2020 Kevin Janicki
|
|
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
|
|
Matricaria discoidea Pineapple weed
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2018 Stacie Wolny
|
|
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
|
|
Melilotus indicus Annual yellow sweetclover, Sourclover
non-native
Annual herb 
2019 Randy Huey
2019 Randy Huey
2017 Rosalie Benitez
|
|
Mentzelia pectinata San joaquin blazing star, San joaquin blazingstar
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Micranthes californica Greene's saxifrage
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Micropus californicus var. californicus Q tips, Slender cottonweed
native
Annual herb 
2006 Steve Matson
2021 Ron Vanderhoff
2016 Steve Matson
|
|
Microseris campestris San joaquin microseris, San joaquin silverpuffs
native
Annual herb 
2022 Cynthia Powell
2022 Cynthia Powell
2022 Dianne Lake
|
|
Microseris douglasii ssp. douglasii Douglas' microseris, Douglas' silverpuffs
native
Annual herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Microsteris gracilis Slender phlox
native
Annual herb 
2003 Steve Matson
2016 Steve Matson
2003 Steve Matson
|
|
Mirabilis laevis var. crassifolia California four o'clock
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Monolopia lanceolata Common monolopia
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Navarretia mitracarpa Paso robles navarretia
native
Annual herb 
2022 Mike Russler
2019 David Greenberger
2022 Mike Russler
|
|
Nemophila menziesii Baby blue eyes
native
Annual herb 
2019 Matt Berger
2019 Diane Etchison
2019 Ron Vanderhoff
|
|
Nemophila pedunculata Littlefoot nemophila, Meadow nemophila
native
Annual herb 
2003 Steve Matson
2020 Bob Sweatt
2024 Alaine Arslan
|
|
Pectocarya anisocarpa Small Tree-Mallow
|
|
Pectocarya linearis ssp. ferocula Sagebrush combseed, Slender comb seed, Slender pectocarya
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Pectocarya setosa Moth combseed, Stiff stemmed comb bur
native
Annual herb 
2014 Steve Matson
2009 Steve Matson
2014 Steve Matson
|
|
Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2022 Ron Vanderhoff
|
|
Phacelia douglasii var. petrophila Douglas' phacelia, Rockloving phacelia
native
Annual herb 
2020 David Greenberger
2021 R.A. Chasey
2021 R.A. Chasey
|
|
Phacelia fremontii Fremont's phacelia
native
Annual herb 
2022 Steve Matson
2022 Mike Russler
2014 Steve Conger
|
|
Phacelia tanacetifolia Lacy phacelia, Tansy leafed phacelia
native
Annual herb 
2022 Mike Russler
2024 Bob Steele
2022 Charles Russell
|
|
Pholistoma membranaceum White fiesta flower, White fiestaflower
native
Annual herb 
2005 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Plagiobothrys arizonicus Arizona popcorn flower, Arizona popcornflower
native
Annual herb 
2020 Steve Matson
2020 Steve Matson
2020 Steve Matson
|
|
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 
2008 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
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
|
|
Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass
non-native
Perennial grass 
2022 John Rawlings
2022 John Rawlings
2020 Ron Vanderhoff
|
|
Populus fremontii ssp. fremontii Fremont cottonwood
native
Tree 
2019 Stella Yang
2020 David popp
2020 Susan McDougall
|
|
Quercus john-tuckeri Tucker oak, Tucker's oak
native
Tree 
2019 Richard Spjut
2015 Keir Morse
2019 Richard Spjut
|
|
Quercus lobata California white oak, Valley oak
native
Tree 
2023 Helen Hancock
2021 Cynthia Powell
2023 Suzanne L. Weakley
|
|
Salix laevigata Polished willow, Red willow
native
Tree 
2017 Steve Matson
2019 Barbara Brydolf
2022 Mark Gary
|
|
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
|
|
Sambucus nigra ssp. caerulea Blue elderberry
native
Tree, Shrub 
2021 Mike Russler
2020 Diane Etchison
2022 El Byrne
|
|
Sanicula bipinnata Poison sanicle
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2022 R.A. Chasey
|
|
Senecio californicus California butterweed, California groundsel, California ragwort
native
Annual herb 
2019 Diane Etchison
2023 Ron Vanderhoff
2022 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
|
|
Sinapis arvensis Charlock mustard
• invasive non-native
Annual herb 
2020 Randy Huey
2022 Mike Russler
2023 Andy Ford
|
|
Sisymbrium orientale Indian hedge mustard, Oriental hedge mustard
non-native
Annual, Perennial herb 
2019 Diane Etchison
2021 Paul Aigner
2021 Ron Vanderhoff
|
|
Solanum umbelliferum var. umbelliferum Blue witch nightshade, Bluewitch nightshade
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Stachys pycnantha Short spike hedge nettle, Shortspike hedgenettle
native
Perennial herb 
2023 David Wolfson
2019 David Wolfson
2021 Dan Quinn
|
|
Stebbinsoseris heterocarpa Grassland stebbinsoseris
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2017 Diane Etchison
|
|
Stellaria nitens Shining chickweed, Shiny chickweed, Smooth chickweed
native
Annual herb 
2022 Catherine Chang
2022 Catherine Chang
2020 Ken Hickman
|
|
Stephanomeria pauciflora Brownplume wirelettuce, Desert straw, Wire lettuce
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Stipa speciosa Desert needle grass
native
Perennial grass 
2011 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Streptanthus anceps Lemmon's mustard
native
Annual herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Streptanthus lasiophyllus Small Tree-Mallow
|
|
Streptanthus lemmonii Lemmon's jewelflower, Lemmon's wild cabbage
• rare native
Annual herb 
2016 Craig Fiehler
2023 Ellen Uhler
2011 Dylan Neubauer
|
|
Tetrapteron graciliflorum Hill sun cup
native
Annual herb 
2021 Charles Russell
2010 Richard Spjut
2016 Richard Spjut
|
|
Thysanocarpus curvipes ssp. curvipes Fringe Pod
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod
native
Annual herb 
2021 Helen Hancock
2021 R.A. Chasey
2021 Helen Hancock
|
|
Trifolium albopurpureum Indian clover, Rancheria clover
native
Annual herb 
2023 Mary Gerbic
2023 Mary Gerbic
2021 Mike Russler
|
|
Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Trifolium willdenovii Tomcat clover
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2018 Stacie Wolny
|
|
Uropappus lindleyi Silver puffs, Uropappus
native
Annual herb 
2019 Zack Abbey
2019 Ron Vanderhoff
2016 Ron Vanderhoff
|
|
Verbascum virgatum Wand mullein
non-native
Perennial herb 
2019 Jerry Thornton
2022 Amber Bedgood
2021 Ron Vanderhoff
|
|
Zannichellia palustris Horned pondweed
native
Perennial herb 
2021 Ron Vanderhoff
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
