Shell Creek Road
Avenales Wildlife Area and nearby areas, Vicinity of Shell Creek Road ?Highway 58 intersection and northward along Shell Creek Road, San Luis Obispo County, California San Luis Obispo County |
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| David Keil / CNPS-SLO (2020-05-30) |
| 402 PLANTS |
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Abronia pogonantha Mohave sand verbena, Mojave sand verbena
native
Annual herb  2019 Matt Berger
 2017 John Doyen
 2017 Adam Chasey
|
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Achillea millefolium Common yarrow
native
Perennial herb  2022 Andy Ford
 2014 James Gonsman
 2023 Ron Vanderhoff
|
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Achyrachaena mollis Blow-Wives
native
Annual herb  2015 Diane Etchison
 2019 Deanna Wargowski
 2021 Cynthia Powell
|
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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 brachycarpus hill lotus
native
Annual herb  2005 Steve Matson
 2005 Steve Matson
 2018 Steve Matson
|
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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 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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Adenostoma fasciculatum. var. prostratum Small Tree-Mallow
|
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Agoseris heterophylla var. cryptopleura Mountain dandelion
native
Annual herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
|
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Agoseris heterophylla var. heterophylla Annual agoseris
native
Annual herb  2022 R.A. Chasey
 2022 Mark Gary
 2019 David Greenberger
|
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Amaranthus albus Pigweed amaranth, Tumbleweed
non-native
Annual herb  2014 Steve Matson
 2014 Steve Matson
 2018 Ron Vanderhoff
|
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Amaranthus californicus California amaranth, California pigweed
native
Annual herb  2016 Gerald Carr
 2016 Gerald Carr
 2014 jim richards
|
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Amaranthus retroflexus Green amaranth, Red root pigweed, Red rooted amaranth
non-native
Annual herb  2017 Ingrid Cabada
 2022 Jennifer Mo
 2021 Ron Vanderhoff
|
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Ambrosia acanthicarpa Annual bursage, Annual burweed
native
Annual herb  2009 Steve Matson
 2014 Steve Matson
 2021 Mike Russler
|
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Amsinckia intermedia Common fiddleneck
native
Annual herb  2020 Matt Berger
 2019 Ron Vanderhoff
 2021 David popp
|
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Amsinckia menziesii Menzies' fiddleneck, Small flowered fiddleneck
native
Annual herb  2020 Ron Vanderhoff
 2018 Gary McDonald
 2018 Gary McDonald
|
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Amsinckia tessellata var. gloriosa Bristly fiddleneck, Large flowered devil's fiddleneck
native
Annual herb  2018 Richard Spjut
 2019 Susan McDougall
 2020 Angelique Herman
|
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Amsinckia tessellata var. tessellata Bristly fiddleneck, Devil's lettuce
native
Annual herb  2008 Keir Morse
 2008 Keir Morse
 2008 Keir Morse
|
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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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Aphanes occidentalis Western lady's mantle
native
Annual, Perennial herb  2019 Ron Vanderhoff
 2017 Ron Vanderhoff
 2021 David popp
|
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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 glauca Big berry manzanita, Bigberry manzanita
native
Tree, Shrub  2020 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
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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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Asclepias fascicularis Narrow leaf milkweed
native
Perennial herb  2018 Ron Vanderhoff
 2014 Steve Matson
 2019 Ron Vanderhoff
|
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Asclepias vestita Milkweed, Woolly milkweed
native
Perennial herb  2023 Sue Luft
 2023 Joanna Clines
 2023 Joanna Clines
|
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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
|
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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  2019 Diane Etchison
 2016 Steve Matson
 2016 Steve Matson
|
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Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed
native
Annual herb  2020 Ron Vanderhoff
 2019 Ron Vanderhoff
 2022 Mike Russler
|
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Astragalus macrodon Salinas milk vetch, Salinas milkvetch
• rare native
Perennial herb  2010 David Keil
 2010 David Keil
 2022 Debra Cook
|
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Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus
native
Annual herb  2021 Paul Aigner
 2008 Steve Matson
 2022 Catherine Chang
|
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Atriplex canescens var. canescens Fourwing saltbush
native
Shrub  2017 Ron Vanderhoff
 2020 Ron Vanderhoff
 2019 Kevin Woolen
|
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Atriplex rosea Redscale, Tumbling oracle, Tumbling saltweed
non-native
Annual herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2015 jamie smith
|
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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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Avena sativa Common oats, Cultivated oats, Wild oat
non-native
Annual, Perennial grass  2016 Cynthia Powell
 2021 John Rawlings
 2006 Louis-M. Landry
|
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Baccharis salicifolia Mule fat., seep willow, Mule's fat, Mulefat
native
Shrub  2023 Julia Markey
 2018 Ron Vanderhoff
 2020 Aaron Echols
|
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Barbarea orthoceras American rocket, American wintercress, Erectpod wintercress
native
Perennial herb  2015 James Gonsman
 2019 Diane Etchison
 2020 Diane Etchison
|
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Blennosperma nanum var. nanum Common blennosperma, Common stickyseed
native
Annual herb  2017 David Greenberger
 2021 R.A. Chasey
 2021 R.A. Chasey
|
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Blitum californicum Small Tree-Mallow
|
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Bowlesia incana Hoary bowlesia
native
Annual herb  2019 Diane Renshaw
 2019 Diane Renshaw
 2017 Gary McDonald
|
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Brodiaea terrestris ssp. terrestris Dwarf brodiaea
native
Perennial herb  2017 James Gonsman
 2022 Cynthia Powell
 2022 Cynthia Powell
|
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Bromus arenarius Australian brome, Australian chess
non-native
Annual grass  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Bromus berteroanus Chilean chess
non-native
Annual grass  2023 John Rawlings
 2006 Steve Matson
 2006 Steve Matson
|
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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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Bromus tectorum Cheatgrass, downy brome, Downy brome grass, Downy chess
• invasive non-native
Annual grass  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
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Calandrinia menziesii red maids, Calandrinia
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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California macrophylla Round leaved filaree
native
Annual herb  2022 Cynthia Adkisson
 2013 Neal Kramer
 2015 Chris Winchell
|
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Callitriche marginata California water starwort, Winged water starwort
native
Annual herb (aquatic)  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Calochortus simulans San luis obispo mariposa lily
• rare native
Perennial herb (bulb)  2019 David Greenberger
 2019 David Greenberger
 2020 John L. Thompson
|
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Calochortus splendens Splendid mariposa lily
native
Perennial herb  2019 Gordon Jenkins
 2018 Diane Etchison
 2019 Ron Vanderhoff
|
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Calyptridium monandrum Common pussypaws, Pussy paws
native
Annual herb  2019 Stacie Wolny
 2023 Maisie Borg
 2021 Mike Russler
|
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Camissonia campestris ssp. campestris Field sun cup, Mojave suncup
native
Annual herb  2021 Mike Russler
 2019 Adam Chasey
 2016 Steve Matson
|
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Camissoniopsis hirtella Hairy sun cup
native
Annual herb  2019 Ron Vanderhoff
 2019 Steve Matson
 2021 Dianne Lake
|
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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 oligosperma Bitter cress, Idaho bittercress
native
Annual, Perennial herb  2008 Steve Matson
 2017 Ron Vanderhoff
 2013 Ron Wolf
|
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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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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 brevistyla Short style owl's clover, Shortstyle indian paintbrush
native
Annual herb  2019 Matt Berger
 2009 Keir Morse
 2010 Neal Kramer
|
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Castilleja densiflora var. 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 exserta var. 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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Castilleja foliolosa Texas paintbrush, Woolly indian paintbrush
native
Perennial herb  2019 Ron Vanderhoff
 2019 Diane Etchison
 2019 Diane Etchison
|
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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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Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush
native
Shrub  2022 Ryan O'Dell
 2021 Steve Matson
 2019 Cara Wilcox
|
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Centaurea cyanus Garden cornflower
non-native
Annual herb  2019 David Greenberger
 2020 Joe Engelbrecht
 2020 David Wolfson
|
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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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Centromadia pungens ssp. pungens Common tarweed
native
Annual herb  2022 Cynthia Powell
 2021 Mike Russler
 2022 Cynthia Powell
|
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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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Chaenactis glabriuscula var. glabriuscula Common yellow chaenactis, Yellow pincushion
native
Annual herb  2020 David Greenberger
 2020 R.A. Chasey
 2020 R.A. Chasey
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Chaenactis glabriuscula var. lanosa Pincushion flower, Woolly yellow chaenactis
native
Annual herb  2019 Susan McDougall
 2019 Susan McDougall
 2008 Keir Morse
|
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Chaenactis xantiana Fleshcolor pincushion, Xantus pincushion, Xantus' chaenactis
native
Annual herb  2019 Matt Berger
 2021 Mike Russler
 2021 Mike Russler
|
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Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot
non-native
Annual herb  2022 Ron Vanderhoff
 2014 Toni Corelli
 2022 Ron Vanderhoff
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Chenopodium berlandieri Berlandier's goosefoot, Pit seed goosefoot
native
Annual herb  2003 Keir Morse
 2003 Keir Morse
 2003 Keir Morse
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Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant
native
Perennial herb  2021 Sue Graue
 2015 Sharon King & Randy Aeschliman
 2018 Karen Scheuermann
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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 douglasii Douglas's spineflower, San benito spineflower
• rare native
Annual herb  2022 Irene Rosen
 2019 David Greenberger
 2022 Irene Rosen
|
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Chorizanthe staticoides Turkish rugging
native
Annual herb  2019 Diane Etchison
 2019 Bryant Baker
 2009 Robert Steers
|
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Chorizanthe uniaristata One awn spineflower, Oneawn spineflower
native
Annual herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
|
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Chorizanthe xanti var. xanti Riverside spineflower, Xantus' spineflower
native
Annual herb  2021 Mike Russler
 2020 Mike Russler
 2021 Mike Russler
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Cirsium occidentale var. californicum Bigelow thistle, California thistle, Cobwebby thistle
native
Perennial herb  2021 Amber Bedgood
 2013 James Gonsman
 2021 Mike Russler
|
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Cirsium occidentale var. venustum Cobwebby thistle, Red thistle, Venus thistle
native
Perennial herb  2020 Stacie Wolny
 2011 Steve Matson
 2011 Steve Matson
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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 cylindrica ssp. cylindrica Speckled clarkia
native
Annual herb  2019 David Greenberger
 2019 Bryant Baker
 2020 Steve Laymon
|
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Clarkia purpurea ssp. purpurea Purple clarkia, Winecup clarkia
native
Annual herb  2020 R.A. Chasey
 2018 Steve Laymon
 2020 R.A. Chasey
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Clarkia speciosa ssp. speciosa Red spot clarkia, Redspot clarkia
native
Annual herb  2019 Steve Laymon
 2003 Keir Morse
 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 parviflora ssp. parviflora Narrow leaved miner's lettuce, Streambank springbeauty, Utah miner s lettuce
native
Annual herb  2017 Gary McDonald
 2017 Gary McDonald
 2017 Gary McDonald
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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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Collinsia bartsiifolia var. davidsonii Davidson's blue eyed mary, Davidson's collinsia
native
Annual herb  2015 Justin Luong
 2022 Mike Russler
 2022 Mike Russler
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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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Croton setiger Turkey-mullein
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2014 Richard Chasey
|
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Crypsis schoenoides Swamp grass, Swamp picklegrass, Swamp pricklegrass
non-native
Annual grass  2023 Ron Vanderhoff
 2018 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Cryptantha corollata Coast range cryptantha
native
Annual herb  2022 Helen Hancock
 2022 Helen Hancock
 2022 Helen Hancock
|
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Cryptantha flaccida Beaked cryptantha, Flaccid cryptantha, Weakstem cryptantha
native
Annual herb  2018 Alice Cummings
 2016 Steve Matson
 2016 Steve Matson
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Cryptantha intermedia var. intermedia Common cryptantha
native
Annual herb  2019 Ron Vanderhoff
 2021 Ron Vanderhoff
 2023 Ron Vanderhoff
|
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Cryptantha juniperensis Rigid cryptantha
native
Annual herb  2016 Bill Thiessen
 2019 Mary Merriman
 2016 Bill Thiessen
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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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Cryptantha muricata var. jonesii Jones' cryptantha
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Cryptantha nemaclada Colusa cryptantha
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 Donald Myrick1999 California Academy of Sciences
|
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Cryptantha oxygona Sharp nut cryptantha, Sharpnut cryptantha
native
Annual herb  2022 Steve Matson
 2022 Steve Matson
 2020 Matt Berger
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Cucurbita palmata Coyote gourd, Coyote melon
native
Annual, Perennial herb  2022 Steve Matson
 2012 George Butterworth
 2022 Steve Matson
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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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Datisca glomerata Durango root
native
Perennial herb  2019 Ron Vanderhoff
 2019 Diane Etchison
 2019 Matt Berger
|
|
Datura wrightii Jimsonweed, Sacred thorn apple, Toluaca
native
Perennial herb  2017 Lisa Miller
 2019 Ron Vanderhoff
 2020 Mike McNamara
|
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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 paniculata Paniculate tarplant, San Diego tarweed
• rare native
Annual herb  2017 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
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Deinandra pentactis Salinas river tarweed
native
Annual herb  2015 Richard Spellenberg
 2015 Richard Spellenberg
 2023 Ryan O'Dell
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Delphinium gypsophilum Gypsum loving larkspur, Pinoche creek larkspur
native
Perennial herb  2022 Mike Russler
 2022 Mike Russler
 2016 Steve Matson
|
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Delphinium parryi ssp. parryi Parry's larkspur, San bernardino larkspur
native
Perennial herb  2022 Mike Russler
 2021 R.A. Chasey
 2013 James Gonsman
|
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Delphinium variegatum ssp. variegatum Royal larkspur
native
Perennial herb  2023 Hunter Breck
 2022 Mike Russler
 2022 Mike Russler
|
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Deschampsia danthonioides Annual hairgrass
native
Annual grass  2003 Steve Matson
 2003 Steve Matson
 2018 Emily Allen
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Descurainia pinnata ssp. brachycarpa Western tansymustard
native
Annual herb  2011 Gerald D. Carr
 2011 Gerald D. Carr
 2011 Gerald D. Carr
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|
Diplacus fremontii Fremont's monkeyflower
native
Annual herb  2019 David Greenberger
 2019 Matt Berger
 2019 Matt Berger
|
|
Dipterostemon capitatus ssp. capitatus Blue dicks
native
Perennial herb  2023 Alaine Arslan
 2008 Steve Matson
 2016 Steve Matson
|
|
Distichlis spicata Inland saltgrass, Salt grass, Saltgrass
native
Perennial grass  2020 Matt Berger
 2019 Ron Vanderhoff
 2022 Donald Burk
|
|
Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass
non-native
Annual grass  2016 Barbara Boethling
 2022 R.A. Chasey
 2008 Zoya Akulova
|
|
Eleocharis macrostachya Common spikerush, Creeping spike rush, Pale spikerush
native
Perennial grasslike herb  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2003 Steve Matson
|
|
Eleocharis parishii Parish's spike rush, Parish's spikerush
native
Perennial grasslike herb  2014 Steve Matson
 2014 Steve Matson
 2018 Rachelle Gray
|
|
Eleusine tristachya Three spiked goosegrass, Threespike goosegrass
non-native
Annual grass  2023 Donald Burk
 2023 Donald Burk
 2023 Donald Burk
|
|
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 triticoides Beardless wild rye
native
Perennial grass  2018 Ron Vanderhoff
 2021 Ron Vanderhoff
 2018 Rachelle Gray
|
|
Emmenanthe penduliflora var. penduliflora Whispering bells, Whisperingbells
native
Annual herb  2018 Ron Vanderhoff
 2015 Barry Thomson
 2014 Ruth Ann Pearsons
|
|
Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb
native
Annual herb  2023 Mary Ann Machi
 2019 Ramona Robison
 2020 Ron Vanderhoff
|
|
Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet
native
Perennial herb  2018 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Epilobium densiflorum Dense boisduvalia, Dense flowered boisduvalia, Dense flowered spike primrose
native
Annual herb  2009 BOB CASE
 2021 Mike Russler
 2022 Ken-ichi Ueda
|
|
Epilobium torreyi Narrow boisduvalia, Narrow leaved boisduvalia, Torrey's willowherb
native
Annual herb  2022 Mark Gary
 2019 Ken Hickman
 2022 R.A. Chasey
|
|
Eragrostis pectinacea var. pectinacea Tufted lovegrass
native
Annual grass  2007 Steve Matson
 2007 Steve Matson
 2007 Steve Matson
|
|
Eremalche parryi ssp. parryi Parry's mallow
native
Annual herb  2019 Dee Shea Himes
 2016 Debra L. Cook
 2019 Dee Shea Himes
|
|
Eremothera boothii ssp. decorticans Shredding evening-primrose
native
Annual herb  2019 Matt Berger
 2020 David Greenberger
 2020 Bryant Baker
|
|
Eriastrum calocyanum pretty blue woolly star
native
Annual herb  2018 Amelia Ryan
 2022 Ryan O'Dell
 2018 Ryan O'Dell
|
|
Eriastrum densifolium ssp. densifolium Giant eriastrum
native
Perennial herb  2018 Cindy Roessler
 2018 Cindy Roessler
 2023 Ron Vanderhoff
|
|
Eriastrum pluriflorum ssp. pluriflorum Many-flowered eriastrum
native
Annual herb  2021 Mike Russler
 2017 George Butterworth
 2021 Mike Russler
|
|
Ericameria linearifolia Interior goldenbush, Linear leaved goldenbush, Narrowleaf goldenbush
native
Shrub  2015 James Gonsman
 2022 Suzanne L. Weakley
 2014 Steve Matson
|
|
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
|
|
Erigeron foliosus var. stenophyllus Leafy fleabane, Thread stemmed fleabane
native
Perennial herb, Shrub  2023 Ron Vanderhoff
 2021 Jacob Martin
 2022 Ron Vanderhoff
|
|
Eriodictyon tomentosum Woolly yerba santa
native
Shrub  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
|
|
Eriogonum angulosum Angled stem buckwheat, Anglestem buckwheat
native
Annual herb  2021 Mike Russler
 2021 Mike Russler
 2009 Keir Morse
|
|
Eriogonum baileyi var. baileyi Bailey's buckwheat
native
Annual herb  2022 Steve Matson
 2022 Steve Matson
 2005 Steve Matson
|
|
Eriogonum cithariforme Cithara buckwheat
native
Annual herb  2011 George Butterworth
 2011 George Butterworth
 2011 George Butterworth
|
|
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 gracile Slender buckwheat, Slender woolly buckwheat
native
Annual herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat, Naked buckwheat, Fremont's Wild Buckwheat
native
Annual herb  2006 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Eriogonum roseum Wand buckwheat
native
Annual herb  2019 Matt Berger
 2014 Steve Matson
 2014 Steve Matson
|
|
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
|
|
Eriophyllum multicaule Branched woolly sunflower, Many stemmed eriophyllum, Manystem woolly sunflower
native
Annual herb  2020 David Wolfson
 2020 David Greenberger
 2022 David Wolfson
|
|
Eriophyllum pringlei Pringle eriophyllum, Pringle's woolly sunflower
native
Annual herb  2019 Diane Etchison
 2020 Bryant Baker
 2020 Bryant Baker
|
|
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
 2020 Julia Markey
 2022 Steve Matson
|
|
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
|
|
Erodium texanum Desert heron's bill, Texas filaree, Texas stork's bill
native
Annual herb  2019 Matt Berger
 2019 Matt Berger
 2010 Steve Matson
|
|
Eryngium spinosepalum Spiny sepaled button celery, Spinysepal eryngo
• rare native
Annual, Perennial herb  2017 Mary Merriman
 2017 Douglas Gordon-Blackwood
 2019 Dane Dettloff
|
|
Erythranthe cardinalis Cardinal monkey flower
native
Perennial herb  2014 James Gonsman
 2023 Steve Conger
 2021 Mike Russler
|
|
Erythranthe floribunda Many flowered monkeyflower
native
Annual herb  2021 Mike Russler
 2019 Diane Etchison
 2021 Mike Russler
|
|
Erythranthe guttata Seep monkey flower, Yellow monkey flower
native
Annual, Perennial herb (rhizomatous)  2019 Stacie Wolny
 2015 James Gonsman
 2019 Stacie Wolny
|
|
Erythranthe latidens Broad toothed monkeyflower
native
Annual herb  2019 David Greenberger
 2017 Amelia Ryan
 2023 Ryan O'Dell
|
|
Erythranthe microphylla Small leaved monkeyflower
• rare native
Annual herb  2019 Susan McDougall
 2021 Robert Steers
 2021 Robert Steers
|
|
native
Perennial herb  2023 Catherine Chang
 2021 Mike Russler
 2021 Mike Russler
|
|
Eschscholzia californica California poppy
native
Annual, Perennial herb  2019 Dee Shea Himes
 2021 Ron Vanderhoff
 2019 Amy Rapport
|
|
Eschscholzia lemmonii ssp. lemmonii Lemmon's poppy
native
Annual herb  2021 R.A. Chasey
 2011 Neal Kramer
 2011 Neal Kramer
|
|
Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta, Spotted hideseed
native
Annual herb  2014 Steve Matson
 2022 Jennifer Mo
 2014 Steve Matson
|
|
Eulobus californicus California primrose
native
Annual herb  2019 Elexis Padron
 2019 Ron Vanderhoff
 2019 Elexis Padron
|
|
Euphorbia ocellata Contura creek spurge
native
Annual herb  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
|
|
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 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 affinis Checker lily, Mission bells
native
Perennial herb (bulb)  2017 Steve Matson
 2008 Steve Matson
 2020 Karen Swift
|
|
Galium andrewsii Needlemat galium, Phlox leaved bedstraw, Phloxleaf bedstraw
native
Perennial herb  2022 Mike Russler
 2019 Marisa Persaud
 2022 Mike Russler
|
|
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
|
|
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
|
|
Gilia austro-occidentalis Southwestern gilia
native
Annual herb  2009 Adonis (Don) Tate
 2009 Adonis (Don) Tate
|
|
Gilia clivorum Many stemmed gilia, Purple spot gilia, Purplespot gilia
native
Annual herb  2013 Gary McDonald
 2013 Gary McDonald
 2023 Mary Gerbic
|
|
Gilia ochroleuca ssp. minima Volcanic gilia
native
Annual herb  2016 Steve Matson
 2016 Steve Matson
 2016 Steve Matson
|
|
Gilia tenuiflora ssp. amplifaucalis Greater yellowthroat gilia, Spreading slender flowered gilia
• rare native
Annual herb |
|
Gilia tenuiflora ssp. tenuiflora Greater yellowthroat gilia, Slender flowered gilia
native
Annual herb  2006 Steve Matson
 2006 Steve Matson
 2006 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
|
|
Glycyrrhiza lepidota American licorice, Lichorice, Wild licorice
native
Perennial herb  2021 Mike Russler
 2008 Neal Kramer
 2021 Mike Russler
|
|
Gnaphalium palustre Lowland cudweed, Western marsh cudweed
native
Annual herb  2019 Ron Vanderhoff
 2005 Steve Matson
 2019 Ron Vanderhoff
|
|
Gutierrezia californica California matchweed, Matchweed, snakeweed, San joaquin snakeweed
native
Perennial herb, Shrub  2021 Helen Hancock
 2018 Ron Vanderhoff
 2021 Mike Russler
|
|
Helianthus gracilentus Slender sunflower
native
Perennial herb  2021 Ron Vanderhoff
 2021 Mike Russler
 2021 Diane Etchison
|
|
Herniaria hirsuta var. cinerea Herniaria
non-native
Annual herb  2016 Michael Mitchell
 2016 Michael Mitchell
 2016 Michael Mitchell
|
|
Hesperocnide tenella Western nettle, Western stinging nettle, Western stingingnettle
native
Annual herb  2019 David Greenberger
 2023 Ken-ichi Ueda
 2020 Ken Hickman
|
|
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
|
|
Hesperomecon linearis Narrowleaf queen poppy
native
Annual herb  2021 Mary Conway
 2021 Mary Conway
 2021 Karen Swift
|
|
Hesperoyucca whipplei Chaparral yucca
native
Shrub  Geoff Burleigh
 2023 Jordan Collins
 2020 Julia Markey
|
|
Heterotheca grandiflora Telegraph weed, Telegraphweed
native
Annual, Perennial herb  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
|
|
Heterotheca oregona var. oregona Oregon false goldenaster, Oregon goldenaster
native
Perennial herb  2022 Dana York
 2020 Susan McDougall
 2020 Susan McDougall
|
|
Heterotheca sessiliflora ssp. echioides Bristly goldenaster, Sessileflower false goldenaster
native
Perennial herb  2021 Mike Russler
 2021 Mike Russler
 2018 Ron Vanderhoff
|
|
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. brachyantherum Meadow barley
native
Perennial grass  2023 Denise Defreese
 2015 Steve Matson
 2015 Steve Matson
|
|
Hordeum depressum Alkali barley, Dwarf barley, Low barley
native
Annual grass  2017 Steve Matson
 2017 Steve Matson
 2017 Steve Matson
|
|
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
|
|
Isocoma acradenia var. bracteosa Bracted alkali goldenbush
native
Shrub  2021 Mike Russler
 2021 Mike Russler
 2010 Neal Kramer
|
|
Isoetes nuttallii Nuttall's quillwort
native
 2019 David Greenberger
 2019 Matt Berger
 2019 Matt Berger
|
|
Juncus amuricus Small Tree-Mallow
|
|
Juncus bufonius var. bufonius Toad rush
native
Annual grasslike herb  2021 John Rawlings
 2023 R.A. Chasey
 2019 Ron Vanderhoff
|
|
Juncus bufonius var. congestus Clustered toad rush
native
Annual grasslike herb  2022 R.A. Chasey
 2023 R.A. Chasey
 2023 Adonis Tate
|
|
Juncus dubius Dubius rush, Mariposa rush
native
Perennial grasslike herb  2015 Keir Morse
 2015 Keir Morse
 2015 Keir Morse
|
|
Juncus luciensis Santa lucia dwarf rush, Santa lucia rush
• rare native
Annual grasslike herb  2023 Matt Berger
 2023 Matt Berger
 2023 Matt Berger
|
|
Juncus mexicanus Mexican rush
native
Perennial grasslike herb  2023 Ron Vanderhoff
 2020 Mary Wloch
 2019 Diane Etchison
|
|
Juncus xiphioides Iris leaved rush, Irisleaf rush
native
Perennial grasslike herb  2016 Erik Larsen
 2017 Ron Vanderhoff
 2023 R.A. Chasey
|
|
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
|
|
Lastarriaea coriacea Leather spineflower
native
Annual herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2021 Jacob Smith
|
|
Lasthenia glaberrima Smooth goldfields
native
Annual herb  2017 Michael Mitchell
 2020 Matt Berger
 2020 R.A. Chasey
|
|
Lasthenia gracilis Needle goldfields
native
Annual herb  2016 Michael Mitchell
 2019 Susan McDougall
 2014 Michael Mitchell
|
|
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
 2017 Alison Sheehey
|
|
Layia heterotricha Pale yellow layia, Paleyellow tidytips
• rare native
Annual herb  2021 Mike Russler
 2021 Mike Russler
 2018 Sarah Termondt
|
|
Layia platyglossa Coastal tidytips
native
Annual herb  2015 Amy Rapport
 2019 Jenna T. B. Ekwealor
 2017 Chris Mo
|
|
Lepidium acutidens Net pepper grass
native
Annual, Perennial herb  2017 Steve Matson
 2017 Steve Matson
 2022 Catherine Chang
|
|
Lepidium dictyotum Alkali pepperweed, Net pepper grass
native
Annual herb  2022 Dianne Lake
 2012 Jean Pawek
 2022 Dianne Lake
|
|
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 liniflorus Narrowflower flaxflower
native
Annual herb  2017 Aaron Echols
 2022 Ron Vanderhoff
 2023 Diana Wahl
|
|
Leptosiphon parviflorus Variable linanthus
native
Annual herb  2008 Keir Morse
 2008 Keir Morse
 2008 Keir Morse
|
|
Leptosiphon pygmaeus ssp. continentalis Pygmy linanthus
native
Annual herb  2019 Steve Matson
 2019 Steve Matson
 2019 Steve Matson
|
|
Leptosyne bigelovii Bigelow coreopsis
native
Annual herb  2019 Diane Etchison
 2020 John L. Thompson
 2020 Matt Berger
|
|
Leptosyne douglasii Douglas' coreopsis
native
Annual herb  2020 Manzanita Dictionary
 2020 Manzanita Dictionary
 2020 Manzanita Dictionary
|
|
Lessingia pectinata var. tenuipes Sticky lessingia
native
Annual herb  2021 Richard Spjut
 2022 Ken-ichi Ueda
 2022 Ken-ichi Ueda
|
|
Lessingia tenuis Spring lessingia
• rare native
Annual herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
|
|
Linanthus dichotomus ssp. dichotomus Evening snow
native
Annual herb  2019 Jacob Smith
 2008 Steve Matson
 2021 Mike Russler
|
|
Linanthus parryae Parry's linanthus, Sand blossoms, Sandblossoms
native
Annual herb  2022 Steve Matson
 2015 Steve Matson
 2011 Steve Matson
|
|
Loeflingia squarrosa Spreading loeflingia, Spreading pygmyleaf
native
Annual herb  2020 Ron Vanderhoff
 2010 Steve Matson
 2010 Steve Matson
|
|
Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium, Woollyfruit desertparsley
native
Perennial herb  2017 James Gonsman
 2018 Gary McDonald
 2018 Gary McDonald
|
|
Lomatium macrocarpum Bigseed biscuitroot, Large fruited lomatium
native
Perennial herb  2018 Gary McDonald
 2022 John Rawlings
 2013 Gary McDonald
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb  2006 Steve Matson
 2019 Eliezer Margolis
 2015 James Gonsman
|
|
Lonicera subspicata var. denudata Chaparral honeysuckle, Johnston's honeysuckle, Santa barbara honeysuckle
native
Shrub  2019 Diane Etchison
 2021 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
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  2022 Mike Russler
 2022 Mike Russler
 2019 Gary McDonald
|
|
Lupinus concinnus Bajada lupine, Elegant lupine, Scarlet lupine
native
Annual herb  2022 Ron Vanderhoff
 2017 Aaron Echols
 2019 Ron Vanderhoff
|
|
Lupinus formosus var. robustus Giant western lupine, Summer lupine
native
Perennial herb  2014 Bill Thiessen
 2023 Rachel Miller
 1995 Saint Mary's College of California
|
|
Lupinus microcarpus var. microcarpus Chick lupine, Valley lupine
native
Annual herb  2016 Michael Mitchell
 2014 Michael Mitchell
 2015 Michael Mitchell
|
|
Lupinus truncatus Blunt leaved lupine, Collared annual lupine, Truncate leaf lupine
native
Annual herb  2010 Michael Mitchell
 2010 Michael Mitchell
 2008 Keir Morse
|
|
Lysimachia arvensis Scarlet pimpernel
non-native
Annual herb  2017 B.J. Dion
 2022 Chris McDonald
 2023 Ron Vanderhoff
|
|
Malacothamnus jonesii Jones's bushmallow
• rare native
Shrub  2012 Terrence Gosliner
 2017 Keir Morse
 2017 Keir Morse
|
|
Malacothrix californica California dandelion, Desert dandelion
native
Annual herb  2023 David Wolfson
 2023 David Wolfson
 Geoff Burleigh
|
|
Malacothrix clevelandii Cleveland's dandelion, Cleveland's desertdandelion, Cleveland's malacothrix
native
Annual herb  2021 Steve Laymon
 2011 Neal Kramer
 2008 Keir Morse
|
|
Malacothrix glabrata Desert dandelion, Smooth desertdandelion
native
Annual herb  2019 Diane Etchison
 2022 Steve Matson
 2017 Leah Gardner
|
|
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 polymorpha Bur clover, Bur medic, California burclover
• invasive non-native
Annual herb  2019 Gary McDonald
 2019 Gary McDonald
 2019 Gary McDonald
|
|
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
|
|
Mentzelia pectinata San joaquin blazing star, San joaquin blazingstar
native
Annual herb  2021 Mike Russler
 2021 Mike Russler
 2021 Mike Russler
|
|
Micropus californicus var. californicus Q tips, Slender cottonweed
native
Annual herb  2006 Steve Matson
 2021 Ron Vanderhoff
 null
|
|
Microseris douglasii ssp. douglasii Douglas' microseris, Douglas' silverpuffs
native
Annual herb  2022 Steve Laymon
 2019 John Rawlings
 2022 Mike Russler
|
|
Microseris elegans Elegant silverpuffs
native
Annual herb  2011 Zoya Akulova
 null
 2004 Laura Ann Eliassen
|
|
Microsteris gracilis Slender phlox
native
Annual herb  2019 Matt Berger
 2003 Steve Matson
 2003 Steve Matson
|
|
Mimetanthe pilosa Snouted monkey flower
native
Annual herb  2017 Steve Matson
 2019 Matt Berger
 2017 Steve Matson
|
|
Monardella villosa ssp. obispoensis San luis obispo coyote mint
native
Perennial herb  2019 David Wolfson
 2019 David Wolfson
 2020 Dee Shea Himes
|
|
Monolopia lanceolata Common monolopia
native
Annual herb  2016 Steve Matson
 2016 Steve Matson
 2016 Steve Matson
|
|
Montia fontana Annual water minerslettuce, Water chickweed, Water montia
native
Annual herb  2019 Ken Hickman
 2023 Alaine Arslan
 2006 Steve Matson
|
|
Mucronea californica California spineflower
• rare native
Annual herb  2020 David Greenberger
 2005 Christopher L. Christie
 2015 Debra L. Cook
|
|
Mucronea perfoliata Perfoliate spineflower
native
Annual herb  2020 Matt Berger
 2019 Matt Berger
 2022 Ryan O'Dell
|
|
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 mitracarpa Paso robles navarretia
native
Annual herb  2022 Mike Russler
 2019 David Greenberger
 2022 Mike Russler
|
|
Navarretia nigelliformis ssp. nigelliformis Adobe navarretia
• rare native
Annual herb  2017 Douglas Gordon-Blackwood
 2017 Douglas Gordon-Blackwood
 2022 David popp
|
|
Nemacladus ramosissimus Nuttall's nemacladus, Smallflower threadplant
native
Annual herb  2017 Fred Melgert / Carla Hoegen
 2019 Ron Vanderhoff
 2017 James Bailey
|
|
Nemacladus secundiflorus var. robbinsii Robbins' nemacladus
• rare native
Annual herb  2022 Damon Tighe
 2022 Damon Tighe
 2022 Damon Tighe
|
|
Nemophila menziesii var. menziesii Baby blue eyes
native
Annual herb  2023 Suzanne L. Weakley
 2021 Zoya Akulova-Barlow
 2005 Steve Matson
|
|
Nemophila pedunculata Littlefoot nemophila, Meadow nemophila
native
Annual herb  2019 Matt Berger
 2003 Steve Matson
 2023 Helen Hancock
|
|
Oenothera deltoides ssp. cognata Birdcage evening primrose, Desert lantern
native
Annual herb  2019 Dee Shea Himes
 2019 Alex Heyman
 2022 Ryan O'Dell
|
|
Panicum capillare Old witch grass, Witchgrass
native
Annual grass  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
Papaver heterophyllum Wind poppy
native
Annual herb  2017 Gary McDonald
 2021 Mike Russler
 2020 Joe Engelbrecht
|
|
Pectocarya linearis ssp. ferocula Sagebrush combseed, Slender comb seed, Slender pectocarya
native
Annual herb  2021 Ron Vanderhoff
 2019 Ron Vanderhoff
 2016 Ron Vanderhoff
|
|
Pectocarya penicillata Sleeping combseed, Winged comb seed, Winged pectocarya
native
Annual herb  2017 Ron Vanderhoff
 2017 Ron Vanderhoff
 2022 Steve Matson
|
|
Pectocarya setosa Moth combseed, Stiff stemmed comb bur
native
Annual herb  2014 Steve Matson
 2020 Matt Berger
 2014 Steve Matson
|
|
Penstemon centranthifolius Scarlet bugler
native
Perennial herb  2019 Ron Vanderhoff
 2017 Diane Etchison
 2021 Mike Russler
|
|
Penstemon heterophyllus var. australis Southern foothill penstemon
native
Perennial herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2018 Jason Matthias Mills
|
|
Pentachaeta alsinoides Tiny pygmy daisy, Tiny pygmydaisy
native
Annual herb  2021 Ken Hickman
 2022 Ken Hickman
 2023 David Gowen
|
|
Pentagramma triangularis ssp. triangularis Gold back fern
native
Fern  2019 James Gonsman
 2008 Steve Matson
 2008 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. douglasii Douglas' phacelia
native
Annual herb  2019 Michael Mitchell
 2014 Michael Mitchell
 2019 Michael Mitchell
|
|
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
 2022 Mike Russler
 2022 Charles Russell
|
|
Phalaris paradoxa Hood canarygrass
non-native
Annual grass  2021 David popp
 2021 John Rawlings
 2017 James Bailey
|
|
Pholistoma membranaceum White fiesta flower, White fiestaflower
native
Annual herb  2023 David Wolfson
 2019 Gary McDonald
 2022 Mike Russler
|
|
Phoradendron villosum ssp. villosum Mistletoe
native
Shrub (parasitic)  2022 David popp
 2020 R.A. Chasey
 2021 R.A. Chasey
|
|
Pinus sabiniana Bull pine, California foothill pine, Gray pine
native
Tree  2022 Cynthia Powell
 2019 Cynthia Powell
 2022 Cynthia Powell
|
|
Plagiobothrys acanthocarpus Adobe allocarya, Adobe popcornflower
native
Annual herb  2017 Steve Matson
 2017 Steve Matson
 2022 Cynthia Powell
|
|
Plagiobothrys bracteatus Bracted allocarya, Bracted popcorn flower, Bracted popcornflower
native
Annual herb  2021 Robert Steers
 2021 Robert Steers
 2008 Jorg Fleige
|
|
Plagiobothrys canescens Grey popcorn flower, Valley popcorn flower, Valley popcornflower
native
Annual herb  2022 Catherine Chang
 2016 Steve Matson
 2016 Steve Matson
|
|
Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower
native
Annual herb  2009 Doug Wirtz
 2009 Anna Bennett
 2004 Carol W. Witham
|
|
Plagiobothrys nothofulvus Rusty haired popcorn flower, Rusty popcorn flower, Rusty popcornflower
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2013 Jean Pawek
|
|
Plagiobothrys tenellus Pacific popcornflower, Popcorn flower, Slender popcorn flower
native
Annual herb  2019 David Magney
 2019 Mary Merriman
 2022 Dana York
|
|
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 ovata var. fastigiata Desert plantain
native
Annual herb  2019 Matt Berger
 2019 Susan McDougall
 2008 Richard Spjut
|
|
Platystemon californicus Cream cups, Creamcups
native
Annual herb  2019 Diane Etchison
 2022 John L. Thompson
 2022 John L. Thompson
|
|
Poa bulbosa ssp. vivipara Bulbous blue grass
non-native
Perennial grass  null
 2015 Richard Chasey
 2022 John Rawlings
|
|
Poa infirma Weak blue grass, Weak bluegrass
non-native
Annual grass  2019 Zoya Akulova
 2019 Zoya Akulova
 2019 Zoya Akulova
|
|
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 monspeliensis Annual beard grass, Rabbitsfoot grass
• invasive non-native
Annual grass  2008 Steve Matson
 2014 Steve Matson
 2008 Steve Matson
|
|
Populus fremontii ssp. fremontii Fremont cottonwood
native
Tree  2019 Stella Yang
 2020 David popp
 2020 Susan McDougall
|
|
Primula clevelandi Small Tree-Mallow
|
|
Pseudognaphalium beneolens Cudweed
native
Perennial herb  2021 BLM Redding Field Office
 2021 Mike Russler
 2021 R.A. Chasey
|
|
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
|
|
Pseudognaphalium stramineum Cottonbatting plant
native
Perennial herb  2020 Ryan Carle
 2017 Diane Etchison
 2011 Toni Corelli
|
|
Pterostegia drymarioides Fairy mist, Woodland threadstem
native
Annual herb  2020 Dick Rawson
 2018 Ron Vanderhoff
 2015 Diane Etchison
|
|
Quercus agrifolia var. agrifolia California live oak, Coast live oak
native
Tree  2023 Ron Vanderhoff
 2022 Ron Vanderhoff
 2021 Al Keuter
|
|
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  2018 stephen rosenthal
 2021 Cynthia Powell
 2020 Charles Russell
|
|
Ranunculus californicus var. ludovicianus California buttercup
native
Perennial herb  2019 Diane Etchison
 2019 Diane Etchison
 2020 Mitchell Coleman
|
|
Rhamnus ilicifolia Evergreen buckthorn, Hollyleaf redberry
native
Shrub  2016 Steve Matson
 2020 Rebecca Schoenenberger
 2019 Diane Etchison
|
|
Rhus aromatica Fragrant sumac, Skunk Bush
native
Shrub  2022 Julia Markey
 2019 Bryant Baker
 2012 Dee Warenycia
|
|
Ribes quercetorum Foothill gooseberry, Oak gooseberry, Rock gooseberry
native
Shrub  2020 Susan McDougall
 2016 Steve Matson
 2020 Susan McDougall
|
|
Rigiopappus leptocladus Rigiopappus, Wire weed, Wireweed
native
Annual herb  2019 Ken Hickman
 2021 Steve Laymon
 2022 John Rawlings
|
|
Rosa californica California wild rose, California wildrose
native
Shrub  2022 Suzanne L. Weakley
 2022 Suzanne L. Weakley
 2020 R.A. Chasey
|
|
Rumex crispus Curly dock, Curly leaved dock, Rhubarb
• invasive non-native
Perennial herb  2018 Tim Lewis
 2019 Diane Etchison
 2023 Ron Vanderhoff
|
|
Rumex hymenosepalus Canaigre dock, Wild rhubarb
native
Perennial herb  2019 Dee Shea Himes
 2021 Ron Vanderhoff
 2008 Steve Matson
|
|
Rumex salicifolius var. crassus Willow leaved dock
native
Perennial herb  2019 Patrick Furtado
 2008 Toni Corelli
 2021 Cynthia Powell
|
|
Sabulina cismontana Cismontane Minuartia
native
Annual herb  2015 Steven M Serkanic
 2020 David popp
 2017 David popp
|
|
Sabulina douglasii Douglas' Stitchwort
native
Annual herb  2022 Steve Matson
 2019 Stacie Wolny
 2021 R.A. Chasey
|
|
Sagina apetala Annual pearlwort, Dwarf pearlwort, Sticky pearlwort
non-native
Annual herb  2022 Donald Burk
 2022 Donald Burk
 2023 R.A. Chasey
|
|
Salix exigua var. hindsiana Sandbar willow
native
Tree, Shrub  2022 Robbie Lee
 2017 Dee Shea Himes
 02/22/2022 John Rawlings
|
|
Salix laevigata Polished willow, Red willow
native
Tree  2017 Steve Matson
 2019 Barbara Brydolf
 2022 Mark Gary
|
|
Salvia carduacea Thistle sage
native
Annual herb  2020 David Greenberger
 2016 Michael Mitchell
 2016 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
|
|
Sambucus nigra ssp. caerulea Blue elderberry
native
Tree, Shrub  2021 Mike Russler
 2020 Diane Etchison
 2022 El Byrne
|
|
Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle
native
Perennial herb  2020 Susan McDougall
 2020 Ryan Carle
 2020 R.A. Chasey
|
|
Schismus arabicus Arabian schismus, Mediterranean grass
• invasive non-native
Annual grass  2020 Ron Vanderhoff
 2017 James Bailey
 2022 Katherine Stratton
|
|
Schismus barbatus Common mediterranean grass, Old han schismus
• invasive non-native
Annual grass  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
Schoenoplectus pungens var. longispicatus Common threesquare
native
Perennial grasslike herb  2012 Michael Mitchell
 2022 R.A. Chasey
 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 flaccidus var. douglasii Bush groundsel, Bush senecio, Douglas' groundsel
native
Shrub  2018 Richard Spjut
 2019 Ron Vanderhoff
 2023 Helen Hancock
|
|
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
|
|
Setaria verticillata Hooked bristlegrass
non-native
Annual grass  2021 Ron Vanderhoff
 2021 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene
native
Annual herb  2019 Ken Hickman
 2019 Ken Hickman
 2023 Matt Berger
|
|
Silene gallica Common catchfly, Windmill pink
non-native
Annual herb  2019 Mary Wloch
 2017 Gary McDonald
 2019 Gary McDonald
|
|
Silybum marianum Blessed milkthistle, Milk thistle
• invasive non-native
Annual, Perennial herb  2020 Nancy Hamlett
 2019 Marisa Persaud
 2018 Angelique Herman
|
|
Sisymbrium 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  2022 Mike Russler
 2014 Steve Matson
 2014 Steve Matson
|
|
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
|
|
Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry
non-native
Annual, Perennial herb  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Stachys albens Cobwebby hedge nettle, White hedge nettle, Whitestem hedgenettle
native
Perennial herb  2013 Steve Matson
 2013 Steve Matson
 2013 Steve Matson
|
|
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 nitens Shining chickweed, Shiny chickweed, Smooth chickweed
native
Annual herb  2020 Ken Hickman
 2022 Catherine Chang
 2017 David popp
|
|
Stellaria pallida Pale starwort
non-native
Annual herb  2022 Donald Burk
 2004 Keir Morse
 2004 Keir Morse
|
|
Stephanomeria exigua ssp. coronaria Milk aster, White plume wirelettuce, Whiteplume wirelettuce
native
Annual herb  2014 Bill Thiessen
 2013 Robert Sikora
 2015 Zoya Akulova
|
|
Stipa cernua Nodding needle grass
native
Perennial grass  2018 Liz Block
 2022 Ron Vanderhoff
 2022 Dianne Lake
|
|
Stipa coronata Crested needle grass
native
Perennial grass  2020 Ron Vanderhoff
 2022 Ron Vanderhoff
 2019 Rachelle Gray
|
|
Stipa speciosa Desert needle grass
native
Perennial grass  2011 Steve Matson
 2022 Dana York
 2018 Liz Block
|
|
Streptanthus anceps Lemmon's mustard
native
Annual herb  2006 Steve Matson
 2006 Steve Matson
 2006 Steve Matson
|
|
Streptanthus lasiophyllus Small Tree-Mallow
|
|
Streptanthus parryi Lemmon's jewelflower, Lemmon's wild cabbage
• rare native
Annual herb  2016 Craig Fiehler
 2023 Ellen Uhler
 2011 Dylan Neubauer
|
|
Stylocline gnaphaloides Everlasting nest straw, Everlasting stylocline, Mountain neststraw
native
Annual herb  2019 Diane Etchison
 2021 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Symphyotrichum subulatum Eastern annual saltmarsh aster
native
Annual herb  2019 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Tetrapteron graciliflorum Hill sun cup
native
Annual herb  2021 Charles Russell
 2009 Keir Morse
 2010 Richard Spjut
|
|
Thysanocarpus curvipes ssp. curvipes Fringe Pod
native
Annual herb  2019 Matt Berger
 2020 R.A. Chasey
 2022 Mike Russler
|
|
Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod
native
Annual herb  2021 Helen Hancock
 2021 R.A. Chasey
 2021 Helen Hancock
|
|
Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak
native
Vine, Shrub  2020 Ron Vanderhoff
 2019 Randy Huey
 2021 Bryant Baker
|
|
Trichostema lanceolatum Vinegarweed
native
Annual herb  2018 Ron Vanderhoff
 2016 Nathan Mudry
 2019 Aaron Echols
|
|
Trifolium albopurpureum Indian clover, Rancheria clover
native
Annual herb  2023 Mary Gerbic
 2023 Mary Gerbic
 2021 Mike Russler
|
|
Trifolium ciliolatum Foothill clover, Tree clover
native
Annual herb  2020 Diane Etchison
 2015 Diane Etchison
 2019 Ron Vanderhoff
|
|
Trifolium depauperatum var. amplectens Balloon sack clover, Pale bladder clover, Pale sack clover
native
Annual herb  2018 David Greenberger
 2013 Andrea Williams
 2018 David Greenberger
|
|
Trifolium depauperatum var. depauperatum Cowbag clover, Dwarf bladder clover, Dwarf sack clover
native
Annual herb  2021 Steve Matson
 2021 Steve Matson
 2021 Steve Matson
|
|
Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover
native
Annual herb  2016 Steve Matson
 2016 Steve Matson
 2016 Steve Matson
|
|
Trifolium macraei Chilean clover, Macrae's clover
native
Annual herb  2009 Toni Corelli
 2022 R.A. Chasey
 2021 R.A. Chasey
|
|
Trifolium microcephalum Hairy clover, Small headed clover
native
Annual herb  2005 Steve Matson
 2016 Michael Mitchell
 2019 Ron Vanderhoff
|
|
Triphysaria micrantha Little butter 'n' eggs, Purplebeak owl's clover
native
Annual herb  2006 Steve Matson
 2006 Steve Matson
 2003 Laura Ann Eliassen
|
|
Tropidocarpum gracile Dobie pod, Slender keel fruit, Slender tropidocarpum
native
Annual herb  2015 Michael Mitchell
 2019 Gary McDonald
 2022 R.A. Chasey
|
|
Uropappus lindleyi Silver puffs, Uropappus
native
Annual herb  2019 Zack Abbey
 2022 Mary Ann Machi
 2016 Ron Vanderhoff
|
|
Verbena lasiostachys Common verbena, Vervain, Western verbena
native
Perennial herb  2020 Greg Froelich
 2018 Gary McDonald
 2019 Marisa Persaud
|
|
Veronica anagallis-aquatica Water speedwell
non-native
Perennial herb  2015 Steve Matson
 2015 Steve Matson
 2022 Bob Sweatt
|
|
Veronica peregrina ssp. xalapensis Hairy purslane speedwell, Neckweed, Purslane speedwell
native
Annual herb  2020 Steve Matson
 2020 Ron Vanderhoff
 2020 Steve Matson
|
|
Xanthium spinosum Spiny clotbur, Spiny cockleburr
non-native
Annual herb  2017 B.J. Dion
 2021 Lynn Overtree
 2015 Zoya Akulova
|
|
Xanthium strumarium Rough cockleburr
native
Annual herb  2019 Ron Vanderhoff
 2011 Steve Matson
 2019 Ron Vanderhoff
|
|
Zeltnera exaltata Cancha lagua
native
Annual herb  2016 Steve Matson
 2016 Steve Matson
 2023 Ron Vanderhoff
|
