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| All Rank A,B,C plants | ||||||
| 969 PLANTS |
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Abronia latifolia Coastal sand verbena, Sand verbena, Yellow sand verbena
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Abronia umbellata var. umbellata Beach sand verbena
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Acaena pinnatifida var. californica California sheepburr
native
Perennial herb 
2020 R.A. Chasey
2022 Ken-ichi Ueda
2020 R.A. Chasey
|
|
Acanthomintha lanceolata Santa clara thorn mint
• rare native
Annual herb 
2019 David Greenberger
2022 Mike Russler
2020 Joey Santore
|
|
Acmispon denticulatus Toothed lotus
native
Annual herb 
2017 Gerald Carr
2017 Gerald Carr
2017 Gerald Carr
|
|
Acmispon junceus var. biolettii Bioletti's rush lotus
native
Perennial herb 
2021 Toni Corelli
2021 Toni Corelli
2021 Toni Corelli
|
|
Acmispon strigosus Strigose lotus
native
Annual herb 
2016 Steve Matson
2009 Steve Matson
2016 Steve Matson
|
|
Actaea rubra baneberry, Western baneberry
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2002 Gerald Carr
|
|
Agoseris apargioides var. apargioides Coast dandelion, Seaside agoseris, Seaside dandelion
native
Perennial herb 
2011 Thomas Reyes
2011 Thomas Reyes
2011 Thomas Reyes
|
|
Agoseris heterophylla var. cryptopleura Mountain dandelion
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Agoseris heterophylla var. heterophylla Annual agoseris
native
Annual herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Agoseris retrorsa Spear leaved agoseris, Spearleaf agoseris, Spearleaf mountain dandelion
native
Perennial herb 
2018 Steve Matson
2018 Steve Matson
2018 Steve Matson
|
|
Agrostis hallii Hall redtop, Hall's bent grass, Hall's bentgrass
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
|
|
Alisma triviale Northern water plantain
native
Perennial herb (aquatic) 
2023 Ken-ichi Ueda
2022 R.A. Chasey
2019 Gena Bentall
|
|
Allenrolfea occidentalis Iodine bush, Iodinebush
native
Shrub 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Allium acuminatum Taper tipped onion, Tapertip onion
native
Perennial herb (bulb) 
2021 Steve Matson
2021 Steve Matson
2006 Steve Matson
|
|
Allium amplectens Narrow leaved onion, Narrowleaf onion
native
Perennial herb (bulb) 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Allium bolanderi var. bolanderi Bolander's onion
native
Perennial herb (bulb) 
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
|
|
Allium falcifolium Scytheleaf onion, Sickle leaf onion
native
Perennial herb (bulb) 
2011 Steve Matson
2022 Steve Matson
2011 Steve Matson
|
|
Allium peninsulare var. peninsulare Mexicali onion, Penisula onion
native
Perennial herb (bulb) 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2021 Mike Russler
|
|
Allium sharsmithiae Sharsmith's onion
• rare native
Perennial herb (bulb) 
2020 David Greenberger
2019 Matt Berger
2020 David Greenberger
|
|
Allium unifolium One leaf onion, Oneleaf onion
native
Perennial herb (bulb) 
2021 Doug Allshouse
2020 stephen rosenthal
2023 Mary Ann Machi
|
|
Allophyllum divaricatum Purple false gilia, Purple false gilyflower, Straggling gilia
native
Annual herb 
2015 Ron Vanderhoff
2019 David Greenberger
2022 BOB CASE
|
|
Allophyllum gilioides ssp. gilioides Dense false gilia, Dense false gilyflower
native
Annual herb 
2019 Matt Berger
2021 Helen Hancock
2019 Matt Berger
|
|
Allophyllum gilioides ssp. violaceum Dense false gilia, Dense false gilyflower
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Alnus rubra Oregon alder, Red alder
native
Tree, Shrub 
2023 Michael Perlmutter
2021 R.A. Chasey
2021 R.A. Chasey
|
|
Alopecurus saccatus Pacific foxtail
native
Annual grass 
2016 David Greenberger
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed
native
Annual herb 
2020 Ron Vanderhoff
2023 Helen Hancock
2019 Camille Nowell
|
|
Amaranthus californicus California amaranth, California pigweed
native
Annual herb 
2016 Gerald Carr
2016 Gerald Carr
2014 jim richards
|
|
Amaranthus palmeri Carelessweed, Palmer's amaranth
native
Annual herb 
2020 Timothy Blank
2018 Lynn Sosnoskie
2018 Lynn Sosnoskie
|
|
Amaranthus powellii Powell's amaranth
native
Annual herb 
2022 Donald Burk
2019 David popp
2015 Keir Morse
|
|
Ambrosia chamissonis Beach bur, Silver beachweed
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Amelanchier utahensis Pale leaved serviceberry, Service berry, Utah service berry
native
Shrub 
2022 R.A. Chasey
2021 Robert Steers
2022 R.A. Chasey
|
|
Ammannia coccinea Purple ammannia, Red ammannia
native
Annual herb 
2021 Jennifer Mo
2018 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Amsinckia douglasiana Douglas' fiddleneck
• rare native
Annual herb 
2023 Matt Berger
2023 Matt Berger
2018 Richard Spjut
|
|
Amsinckia eastwoodiae Eastwood's fiddleneck
native
Annual herb 
2021 R.A. Chasey
2019 Susan McDougall
2019 Susan McDougall
|
|
Amsinckia grandiflora Large flowered fiddleneck, Largeflowered fiddleneck
• rare native
Annual herb 
2017 John Doyen
2017 John Doyen
2017 John Doyen
|
|
Amsinckia lunaris Bent flowered fiddleneck, Bentflower fiddleneck
• rare native
Annual herb 
2022 Michael L. Uhler
2022 R.A. Chasey
2022 Michael L. Uhler
|
|
Amsinckia lycopsoides Bugloss fiddleneck, Tarweed fiddleneck
native
Annual herb 
2021 David popp
2023 Catherine Chang
2022 Catherine Chang
|
|
Amsinckia tessellata var. gloriosa Bristly fiddleneck, Large flowered devil's fiddleneck
native
Annual herb 
2024 Ryan O'Dell
2019 Susan McDougall
2018 Richard Spjut
|
|
Amsinckia tessellata var. tessellata Bristly fiddleneck, Devil's lettuce
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Amsinckia vernicosa Green fiddleneck
native
Annual herb 
2018 Richard Spjut
2022 Mike Russler
2023 Jacob Smith
|
|
Ancistrocarphus filagineus False neststraw, Woolly fishhooks
native
Annual herb 
2020 Matt Berger
2019 Gerald Carr
2021 Jacob Smith
|
|
Androsace elongata ssp. acuta California androsace, California rockjasmine
• rare native
Annual herb 
2023 Catherine Chang
2022 Catherine Chang
2023 Helen Hancock
|
|
Anemopsis californica Yerba mansa
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Anisocarpus madioides Woodland madia
native
Perennial herb 
2023 Suzanne L. Weakley
2023 R.A. Chasey
2016 Cynthia Powell
|
|
Anthoxanthum occidentale Califonria sweet grass, Vanilla grass
native
Perennial grass 
2022 John Rawlings
2022 R.A. Chasey
2022 John Rawlings
|
|
Antirrhinum kelloggii Climbing snapdragon, Kellogg's snapdragon, Lax snapdragon
native
Annual herb 
2020 Ron Vanderhoff
2019 David Greenberger
2019 Ron Vanderhoff
|
|
native
Perennial herb 
2018 Michael Mitchell
Geoff Burleigh
2016 Kristin Sabo
|
|
Antirrhinum vexillocalyculatum ssp. vexillocalyculatum Wiry snapdragon
native
Annual herb 
2021 Dick Rawson
2021 Dick Rawson
2022 R.A. Chasey
|
|
Aphyllon californicum ssp. jepsonii Jepson's california broom rape
native
Perennial herb (parasitic) 
2019 Ken Hickman
2018 Brian and Eileen Keelan
2019 Ken Hickman
|
|
Aphyllon fasciculatum Clustered broomrape
native
Perennial herb (parasitic) 
2016 Jim Xerogeanes
2016 Jim Xerogeanes
2023 Mary Ann Machi
|
|
Aphyllon pinorum Pinewoods broom rape
native
Perennial herb (parasitic) 
2023 Jamie Spielmann
2023 Julie A. Kierstead
2011 Ryan Batten
|
|
Orobanche uniflora Purple broomrape
Annual herb 
2022 Helen Hancock
2023 Katie O'Hara-Kelly
2022 Dana York
|
|
Aphyllon tuberosum Chaparral broomrape
native
Perennial herb (parasitic) 
2022 Hunter Breck
2019 David Greenberger
2022 R.A. Chasey
|
|
Aphyllon vallicolum Valley broom rape
native
Annual herb 
2021 Jennifer Mo
2017 Jennifer Poore
2012 Rachel Brownsey
|
|
Apiastrum angustifolium Mock parsley, Wild celery, Wild parsley
native
Annual herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Apocynum androsaemifolium Bitter dogbane, Spreading dogbane
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Apocynum cannabinum Indian hemp, Indianhemp dogbane, HEMP DOGBANE
native
Perennial herb 
2019 Ron Vanderhoff
2015 Ron Vanderhoff
2021 Mike Russler
|
|
Aquilegia eximia Serpentine columbine, Sticky columbine, Van Houtte's columbine
native
Perennial herb 
2019 David Greenberger
2019 Ken Hickman
2021 Mike Russler
|
|
Aquilegia formosa Crimson columbine, Sitka columbine, Western columbine
native
Perennial herb 
2022 Charles Russell
2019 Diane Etchison
2022 David Strauch
|
|
Arabis blepharophylla Coast rock cress
• rare native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Aralia californica California spikenard, Elk's clover, Elkclover
native
Perennial herb 
2022 Julie A. Kierstead
2020 Tri Do
2014 James Gonsman
|
|
Arbutus menziesii Madrono, Pacific madrone
native
Tree 
2021 Cynthia Powell
2021 R.A. Chasey
2021 Hunter Breck
|
|
Arceuthobium campylopodum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe
native
Perennial herb (parasitic) 
2016 Richard Spjut
2020 Charles Russell
2021 Mikhela Aiken
|
|
Arctostaphylos auriculata Mount Diablo manzanita
• rare native
Shrub 
2006 Steve Matson
2016 Adam Chasey
2021 Mike Russler
|
|
Arctostaphylos crustacea ssp. crustacea Brittle leaf manzanita
native
Shrub 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Arctostaphylos crustacea ssp. rosei Rose's manzanita
native
Shrub 
2021 Cynthia Powell
2022 Michael Heine
2021 Cynthia Powell
|
|
Arctostaphylos glandulosa ssp. cushingiana Cushing manzanita
native
Shrub 
2019 Susan McDougall
2016 Dana York
2016 Dana York
|
|
Arctostaphylos glandulosa ssp. glandulosa Eastwood manzanita, Eastwood's manzanita
native
Shrub 
2021 Ron Vanderhoff
2020 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Arctostaphylos glandulosa ssp. mollis Eastwood's manzanita, Transverse range manzanita
native
Shrub 
2021 Mike Russler
2021 Rico Ramirez
2021 Arlee Montalvo
|
|
Arctostaphylos glauca Big berry manzanita, Bigberry manzanita
native
Tree, Shrub 
2020 Ron Vanderhoff
2018 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Arctostaphylos manzanita ssp. laevigata Contra costa manzanita
• rare native
Shrub 
2019 Susan McDougall
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Arctostaphylos manzanita ssp. manzanita Common Manzanita
native
Shrub 
2021 R.A. Chasey
2018 Adam Chasey
2015 James Gonsman
|
|
Arctostaphylos pallida Alameda manzanita, Oakland hills manzanita, Pallid manzanita
• rare native
Shrub 
2016 Neal Kramer
2020 Ian Donahue
2020 Scott Cox
|
|
Argemone munita Chicalote, Prickly poppy
native
Annual, Perennial herb 
2023 Caitlin Kreutz
2021 Mike Russler
2021 Mike Russler
|
|
Aristolochia californica California pipe vine, California pipevine, Dutchman's pipe
native
Vine, Shrub 
2015 Judy and Barry Breckling
2018 John Rusk
2019 Ramona Robison
|
|
Arnica discoidea Rayless arnica
native
Perennial herb 
2020 Ken Hickman
2019 David Magney
2020 Eliezer Margolis
|
|
Artemisia dracunculus Herbaceous sagewort, Pinon wormwood, Tarragon
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Artemisia pycnocephala Beach sagewort, Coastal sagewort
native
Perennial herb 
2019 Patrick Furtado
2021 Zoya Akulova-Barlow
2023 Cynthia Powell
|
|
Arthrocnemum subterminale Parish's glasswort
native
Perennial herb 
2020 Sandy Leatherman
2021 Denise Defreese
2020 Ron Vanderhoff
|
|
Asarum caudatum Creeping wild ginger, Longtail wild ginger
native
Perennial herb 
2023 Dana York
2022 Jamie Spielmann
2016 Richard Chasey
|
|
Asclepias californica California milkweed
native
Perennial herb 
2022 Lynn Sweet
2020 Stacie Wolny
2015 Ron Vanderhoff
|
|
Asclepias cordifolia Heart leaf milkweed, Heartleaf milkweed, Purple milkweed
native
Perennial herb 
2020 Zane Walker
2022 R.A. Chasey
2023 Mary Ann Machi
|
|
Asclepias speciosa Showy milkweed
native
Perennial herb 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Aspidotis californica California lace fern, California lacefern
native
Fern 
2020 R.A. Chasey
2018 Hunter Breck
2020 John Schmidt
|
|
Aspidotis carlotta-halliae Carlotta hall's lace fern
• rare native
Fern (rhizomatous)  2010 Neal Kramer
|
|
Aspidotis densa Cliffbrake, Lace fern
native
Fern 
2022 Christopher Collier
2019 Matt Berger
2015 James Gonsman
|
|
Astragalus asymmetricus San joaquin milk vetch, San joaquin milkvetch
native
Perennial herb 
2020 Susan McDougall
2020 Susan McDougall
2023 Catherine Chang
|
|
Astragalus breweri Brewer's milk vetch, Brewer's milkvetch
• rare native
Annual herb 
2019 R.A. Chasey
2018 David Greenberger
2018 David Greenberger
|
|
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
|
|
Astragalus nuttallii var. nuttallii Nuttall's milkvetch, Ocean bluff milk vetch
• rare native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Astragalus nuttallii var. virgatus Nuttall's milkvetch, Ocean bluff milk vetch, San francisco rattleweed
native
Perennial herb 
2011 Toni Corelli
2016 Toni Corelli
2015 Mary Sue Ittner
|
|
Astragalus oxyphysus Stanislaus milkvetch
native
Perennial herb 
2020 David Greenberger
2016 Steve Matson
2016 Steve Matson
|
|
Astragalus tener var. tener Alkali milk vetch, Alkali milkvetch
• rare native
Annual herb 
2023 John Doyen
2019 John Rawlings
2020 Tim Miller
|
|
Athysanus unilateralis Ladiestongue mustard
native
Annual herb 
2023 R.A. Chasey
2023 R.A. Chasey
2008 Aaron Schusteff
|
|
Atriplex argentea var. expansa Mojave silverscale
native
Annual herb 
2022 Dianne Lake
2022 Dianne Lake
2022 Dianne Lake
|
|
Atriplex cordulata var. cordulata Heartscale
• rare native
Annual herb  2003 George W. Hartwell
 1994 Robert E. Preston, Ph.D.
 2011 Jean Pawek
|
|
Atriplex cordulata var. erecticaulis Earlimart orach
• rare native
Annual herb  2009 Robert E. Preston, Ph.D.
 2009 Robert E. Preston, Ph.D.
|
|
Atriplex coronata var. coronata Crownscale
• rare native
Annual herb 
2023 R.A. Chasey
2023 Cynthia Powell
2021 Cynthia Powell
|
|
Atriplex depressa Brittlescale
• rare native
Annual herb 
2011 Ramona Robison
2009 Zoya Akulova
2003 George W. Hartwell
|
|
Atriplex dioica Spike saltbush
native
Annual herb 
2020 Susan McDougall
2020 Susan McDougall
2020 Susan McDougall
|
|
Atriplex fruticulosa Ball saltbush, Valley saltbush
native
Perennial herb 
2023 R.A. Chasey
2017 Adam Chasey
2021 Cynthia Powell
|
|
Atriplex lentiformis Big saltbush
native
Shrub 
2018 Rachelle Gray
2017 Ron Vanderhoff
2021 Richard Spjut
|
|
Atriplex leucophylla Beach salt bush, Beach saltbush, Sea scale
native
Perennial herb 
2006 Avis Boutell
2019 Diane Etchison
2020 Ken Hickman
|
|
Atriplex serenana var. serenana Bractscale, Saltscale
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Balsamorhiza deltoidea Balsam deltoid, Deltoid balsam root, Deltoid balsamroot
native
Perennial herb 
2016 Steve Matson
2018 Matt Berger
2016 Steve Matson
|
|
Balsamorhiza macrolepis Big scale balsam root, California balsamroot
• rare native
Perennial herb 
2022 R.A. Chasey
2023 Matt Berger
2022 R.A. Chasey
|
|
Berberis aquifolium var. dictyota Jepson's oregon grape, Shining netvein barberry
native
Shrub 
2009 Ron Vanderhoff
2020 Donald Burk
2021 Mike Russler
|
|
Berberis nervosa Cascades oregon grape, Oregongrape
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Berberis pinnata ssp. pinnata California barberry, Coast barberry, Shiny leaf barberry
native
Shrub 
2022 Alice Cummings
2021 Ron Vanderhoff
2021 R.A. Chasey
|
|
Berula erecta Cut leaved water parsnip, Cutleaf water parsnip, Cutleaf waterparsnip
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Bidens frondosa Devil's beggartick, Sticktight
native
Annual herb 
2020 R.A. Chasey
2020 Bob Sweatt
2020 R.A. Chasey
|
|
Bidens laevis Bur marigold
native
Perennial herb 
2020 Aaron Echols
2016 Barbara Boethling
2018 Ron Vanderhoff
|
|
Blennosperma nanum var. nanum Common blennosperma, Common stickyseed
native
Annual herb 
2017 David Greenberger
2021 R.A. Chasey
2021 R.A. Chasey
|
|
Blepharizonia laxa Glandular big tarweed
native
Annual herb 
2019 Jacob Smith
2021 Mike Russler
2021 Mike Russler
|
|
Blepharizonia plumosa Big tarweed
• rare native
Annual herb 
2020 David Greenberger
2019 Scott Yarger
2019 Scott Yarger
|
|
Boechera breweri ssp. breweri Brewer's rockcress
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Bolboschoenus fluviatilis River bulrush
native
Perennial grasslike herb  2010 Louis-M. Landry
 2010 Louis-M. Landry
 2010 Louis-M. Landry
|
|
Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush
native
Perennial grasslike herb 
2022 R.A. Chasey
2020 R.A. Chasey
2020 Alice Cummings
|
|
Brickellia californica Brickell bush, California brickellbush, California brickellia
native
Perennial herb 
2020 Diane Etchison
2018 Diane Etchison
2022 Ron Vanderhoff
|
|
Brodiaea terrestris ssp. terrestris Dwarf brodiaea
native
Perennial herb 
2017 James Gonsman
2022 Cynthia Powell
2022 Cynthia Powell
|
|
Bromus maritimus Maritime brome
native
Perennial grass 
2020 Ken Hickman
2016 Richard Chasey
2017 Toni Corelli
|
|
Calamagrostis koelerioides Fire reedgrass
native
Perennial grass 
2022 Dana York
2022 Dana York
2006 Steve Matson
|
|
Calamagrostis nutkaensis Pacific reedgrass
native
Perennial grass 
2018 Ken Hickman
2019 Cynthia Powell
2019 Ken Hickman
|
|
Calamagrostis rubescens Pine grass, Pinegrass
native
Perennial grass 
2018 Ken Hickman
2019 John Rawlings
2023 John Rawlings
|
|
Calandrinia breweri Brewer's calandrinia
• rare native
Annual herb 
2015 Ron Vanderhoff
2018 Ken Hickman
2014 Ron Vanderhoff
|
|
Calochortus clavatus var. pallidus Clubhair mariposa lily, Pale yellow mariposa
native
Perennial herb 
2021 Mike Russler
2021 Dee Shea Himes
2022 Dee Shea Himes
|
|
Calochortus invenustus Plain mariposa lily
native
Perennial herb 
Geoff Burleigh
Geoff Burleigh
2012 Ron Vanderhoff
|
|
Calochortus luteus Yellow mariposa lily
native
Perennial herb 
2014 Steve Matson
2016 Melissa Mooney
2023 Ryan O'Dell
|
|
Calochortus pulchellus Mount Diablo globelily, Mt. Diablo fairy lantern
• rare native
Perennial herb (bulb) 
2018 Steve Matson
2018 Steve Matson
2018 Steve Matson
|
|
Calochortus splendens Splendid mariposa lily
native
Perennial herb 
2019 Gordon Jenkins
2018 Diane Etchison
2019 Ron Vanderhoff
|
|
Calochortus umbellatus Oakland mariposa lily, Oakland star tulip
• rare native
Perennial herb (bulb) 
2018 Steve Matson
2020 Tina Curiel
2018 Steve Matson
|
|
Calochortus venustus Butterfly mariposa lily
native
Perennial herb 
2014 Steve Matson
2012 Zack Abbey
2023 Rhonda Allen
|
|
Calycadenia multiglandulosa Rosin weed, Sticky calycadenia, Sticky western rosinweed
native
Annual herb 
2018 Alice Cummings
2021 R.A. Chasey
2019 Alice Cummings
|
|
Calycadenia truncata Rosin weed
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2023 Helen Hancock
|
|
Calystegia malacophylla ssp. pedicellata Jepson's morning glory, Sierra false bindweed
native
Perennial herb 
2021 R.A. Chasey
2020 David Greenberger
2021 Dick Rawson
|
|
Calystegia purpurata ssp. saxicola Bodega morning glory, Pacific false bindweed
• rare native
Perennial herb 
2017 Mary Sue Ittner
2022 Zoya Akulova-Barlow
2019 Manzanita Dictionary
|
|
Calystegia sepium ssp. limnophila Hedge false bindweed, Marsh morning glory
native
Perennial herb 
2013 Ron Vanderhoff
2021 Jutta Burger
2020 R.A. Chasey
|
|
Calystegia soldanella Beach morning glory, Beach morningglory
native
Perennial herb 
2020 David Greenberger
2021 Hayley Ross
2021 Hayley Ross
|
|
Camissonia campestris ssp. campestris Field sun cup, Mojave suncup
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Camissonia contorta Contorted sun cup, Plains evening primrose
native
Annual herb 
2023 Dianne Lake
2022 Mike Russler
2022 Mike Russler
|
|
Camissonia strigulosa Contorted primrose, Sandysoil suncup, Strigose sun cup
native
Annual herb 
2015 Diane Etchison
2011 Michael Mitchell
2015 Diane Etchison
|
|
Camissoniopsis cheiranthifolia ssp. cheiranthifolia Beach evening-primrose
native
Annual, Perennial herb 
2016 Steve Matson
2016 Steve Matson
2006 Steve Matson
|
|
Camissoniopsis hirtella Hairy sun cup
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Camissoniopsis intermedia Intermediate sun cups
native
Annual herb 
2017 David Greenberger
2016 Erik Larsen
2018 Alice Cummings
|
|
Camissoniopsis micrantha Spencer primrose
native
Annual herb 
2024 Mike Russler
2021 Cara Wilcox
2023 Ron Vanderhoff
|
|
Campanula exigua Chaparral harebell
• rare native
Annual herb 
2019 David Greenberger
2022 R.A. Chasey
2019 David Greenberger
|
|
Campanula griffinii Griffin's bellflower, Griffin's harebell
native
Annual herb 
2022 Robert Steers
2022 Robert Steers
2022 Robert Steers
|
|
Carex aquatilis var. dives Sitka sedge
native
Perennial grasslike herb  2003 Steve Matson
 2003 Steve Matson
|
|
Carex barbarae Santa barbara sedge, Valley sedge
native
Perennial grasslike herb 
2017 Eric Wrubel, NPS
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Carex brevicaulis Short stem sedge
native
Perennial grasslike herb 
2022 Michael L. Uhler
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Carex comosa Bristly sedge, Longhair sedge
• rare native
Perennial grasslike herb (rhizomatous)  2003 Steve Matson
 1997 Dean Wm. Taylor
 2009 Kerry Heise
|
|
Carex densa Dense sedge, Sedge
native
Perennial grasslike herb 
2023 John Rawlings
2022 R.A. Chasey
2014 Eric Wrubel
|
|
Carex globosa Round fruit sedge
native
Perennial grasslike herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Carex gracilior Slender sedge
native
Perennial grasslike herb 
2010 Toni Corelli
2003 Steve Matson
2003 Steve Matson
|
|
Carex harfordii Harford's sedge, Monterey sedge
native
Perennial grasslike herb 
2019 Ken Hickman
2023 Ellen Uhler
2023 Ellen Uhler
|
|
Carex heteroneura Different nerve sedge, Variable nerved sedge
native
Perennial grasslike herb 
2003 Steve Matson
2010 Steve Matson
2006 Steve Matson
|
|
Carex laeviculmis Smooth stem sedge, Smoothstem sedge
native
Perennial grasslike herb  2003 Steve Matson
 2003 Steve Matson
 2003 Steve Matson
|
|
Carex lenticularis var. lipocarpa Fat fruited sedge, Kellogg's sedge
native
Perennial grasslike herb 
2011 Dana York
2007 Steve Matson
2007 Steve Matson
|
|
Carex leporina Hare or oval sedge
native
Perennial grasslike herb 
null
2009 Chris Wagner
2009 Chris Wagner
|
|
Carex leptopoda Slender-footed sedge
native
Perennial grasslike herb 
2019 Mary Merriman
2023 R.A. Chasey
2021 Judy Schwartz
|
|
Carex multicostata Many ribbed sedge, Manyrib sedge
native
Perennial grasslike herb  2002 Steve Matson
 2003 Steve Matson
 2002 Steve Matson
|
|
Carex nebrascensis Nebraska sedge
native
Perennial grasslike herb 
2019 Steve Matson
2022 Dianne Lake
2019 Steve Matson
|
|
Carex nudata Dudley's sedge, Naked sedge, Torrent sedge
native
Perennial grasslike herb 
2022 R.A. Chasey
2016 David Greenberger
2014 John Malpas
|
|
Carex obnupta Coast carex, Slough sedge
native
Perennial grasslike herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Carex pellita Woolly sedge
native
Perennial grasslike herb 
2019 Matt Berger
2022 Ellen Uhler
2019 Eric Wrubel
|
|
Carex praegracilis Clustered field sedge, Field sedge
native
Perennial grasslike herb 
2020 Ken Hickman
2020 John Rawlings
2020 Steve Matson
|
|
Carex senta Rough sedge, Swamp carex, Swamp sedge
native
Perennial grasslike herb 
2019 Rachelle Gray
2019 Rachelle Gray
2019 Rachelle Gray
|
|
Carex serratodens Bifid sedge, Two tooth sedge
native
Perennial grasslike herb 
2019 Steve Matson
2019 Steve Matson
2021 Cynthia Powell
|
|
Carex subbracteata Small bract sedge
native
Perennial grasslike herb 
2023 Dana York
2021 John Rawlings
2023 Ellen Uhler
|
|
Carex tumulicola Foothill sedge, Slender sedge, Split awn sedge
native
Perennial grasslike herb 
2017 David Greenberger
2021 John Rawlings
2021 John Rawlings
|
|
Carex unilateralis Lateral sedge
native
Perennial grasslike herb 
2023 Emily R. Allen
2009 Chris Wagner
2019 Wyatt Dooley
|
|
Castilleja ambigua ssp. ambigua Johnny nip
native
Annual herb 
2017 Toni Corelli
2013 James Gonsman
2018 Vernon Smith
|
|
Castilleja applegatei ssp. martinii Martin's paintbrush, Wavyleaf indian paintbrush
native
Perennial herb 
2022 Mary Conway
2022 Mary Conway
2019 David Magney
|
|
Castilleja exserta ssp. latifolia Purple owl's clover, Wideleaf indian paintbrush
native
Annual herb 
2022 Julia Larke
2022 R.A. Chasey
2020 Mary Ann Machi
|
|
Castilleja rubicundula ssp. lithospermoides Cream sacs
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Castilleja subinclusa ssp. franciscana Franciscan paintbrush, Longleaf indian paintbrush
native
Perennial herb 
2020 Hunter Breck
2014 James Gonsman
2014 James Gonsman
|
|
Castilleja subinclusa ssp. subinclusa Long leaf paintbrush, Longleaf indian paintbrush
native
Perennial herb 
2021 Dianne Lake
2021 Dianne Lake
2022 Dianne Lake
|
|
Castilleja wightii Wight's indian paint brush, Wight's paintbrush
native
Perennial herb 
2022 Suzanne L. Weakley
2023 Beth Reuter
2022 R.A. Chasey
|
|
Caulanthus flavescens Yellow california mustard
native
Annual herb 
2019 John Rawlings
2015 John Doyen
2015 John Doyen
|
|
Caulanthus lemmonii Lemmon's jewelflower, Lemmon's wild cabbage
• rare native
Annual herb 
2016 Craig Fiehler
2023 Ellen Uhler
2011 Dylan Neubauer
|
|
Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush
native
Shrub 
2022 Ryan O'Dell
2021 Steve Matson
2019 Cara Wilcox
|
|
Ceanothus leucodermis Chaparral whitethorn
native
Shrub 
2020 Bryant Baker
2019 Ron Vanderhoff
2019 Bryant Baker
|
|
Ceanothus thyrsiflorus var. thyrsiflorus Blue blossom
native
Tree, Shrub 
2019 Patrick Furtado
2022 Mary Conway
2022 Cynthia Powell
|
|
Centromadia parryi ssp. congdonii Congdon's tarplant
• rare native
Annual herb 
2013 Toni Corelli
2023 Jordan Collins
2021 Michele Hammond
|
|
Cephalanthus occidentalis Common buttonbush
native
Shrub 
2021 Mike Russler
2017 Carl Bjork
2017 Carl Bjork
|
|
Cercis occidentalis Redbud, Western redbud
native
Tree, Shrub 
2023 Cynthia Powell
2020 Julie A. Kierstead
2023 Cynthia Powell
|
|
Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany
native
Tree, Shrub 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2016 Ron Vanderhoff
|
|
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. heterocarpha Variable fruited yellow chaenactis, Yellow pincushion, Inner Coast Range Pincushion
native
Annual herb 
2020 David Greenberger
2022 Ryan O'Dell
2021 Steve Laymon
|
|
Chaenactis glabriuscula var. megacephala Big headed yellow chaenactis, Yellow pincushion
native
Annual herb 
2017 Ryan Kelly
2017 Ryan Kelly
2009 Barry Breckling
|
|
Chenopodium berlandieri var. sinuatum Pitseed goosefoot
native
Annual herb 
2014 Ron Vanderhoff
2023 Dianne Lake
2018 Ron Vanderhoff
|
|
Chenopodium berlandieri var. zschackei Pit seed goosefoot
native
Annual herb 
2018 Gerald Carr
2018 Gerald Carr
2018 Gerald Carr
|
|
Chenopodium rubrum Red goosefoot
native
Annual herb 
2009 Gerald Carr
2020 Alice Cummings
2018 Gerald Carr
|
|
Chenopodium rubrum var. humile Red goosefoot
non-native
Annual herb
2018 Gerald Carr
2018 Gerald Carr
2018 Gerald Carr
|
|
Chenopodium rubrum var. rubrum Red goosefoot
native
Annual herb 
2009 Gerald Carr
2009 Gerald Carr
2009 Gerald Carr
|
|
Chloropyron maritimum ssp. palustre Point reyes bird's-beak
• rare native
Annual herb 
2018 Saskia Raether
2018 Michael Perlmutter
2018 Saskia Raether
|
|
Chloropyron molle ssp. hispidum Hispid bird's-beak
• rare native
Annual herb 
2019 David Greenberger
2012 Doug Wirtz
2012 Douglas Wirtz
|
|
Chloropyron molle ssp. molle Soft bird's-beak
• rare native
Annual herb 
2021 Scott Yarger
2018 Kevin Sherrill
2021 Denise Defreese
|
|
Chloropyron palmatum Palmate-bracted bird's-beak
• rare native
Annual herb 
2019 David Greenberger
2007 John Game
2003 George W. Hartwell
|
|
Chorizanthe cuspidata var. cuspidata San francisco bay spineflower, San francisco spineflower
• rare native
Annual herb 
2021 John Rawlings
2022 Mike Russler
2021 R.A. Chasey
|
|
Chorizanthe membranacea Pink spineflower
native
Annual herb 
2008 Keir Morse
2008 Keir Morse
2023 Helen Hancock
|
|
Chorizanthe polygonoides var. polygonoides Knotweed spineflower
native
Annual herb 
2024 Jordan Collins
2024 Jordan Collins
2023 R.A. Chasey
|
|
Chorizanthe robusta var. robusta Robust spineflower
• rare native
Annual herb 
2020 Ryan Carle
2020 Ryan Carle
2020 Ryan Carle
|
|
Chorizanthe uniaristata One awn spineflower, Oneawn spineflower
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Chrysolepis chrysophylla var. minor Bush chinquapin, Giant chinquapin
native
Tree, Shrub 
2020 R.A. Chasey
2019 Ken Hickman
2009 Neal Kramer
|
|
Cicendia quadrangularis Common microcalis, Oregon timwort
native
Annual herb 
2008 Steve Matson
2022 Charles Russell
2023 Bill Kress
|
|
Cicuta douglasii Western water hemlock
native
Perennial herb 
2015 Bob Case
2020 Julie A. Kierstead
2021 R.A. Chasey
|
|
Cicuta maculata var. bolanderi Saltmarsh water hemlock, Spotted water hemlock
• rare native
Perennial herb  2013 Steve Matson
 2013 Steve Matson
|
|
Cirsium andrewsii Franciscan thistle
• rare native
Perennial herb 
2011 Scott Cox
2011 Thomas Reyes
2013 Robert Sikora
|
|
Cirsium brevistylum Clustered thistle, Indian thistle
native
Perennial herb 
2019 Steve Davison
2018 Brian Charles
2019 Aleksandra Evert
|
|
Cirsium cymosum var. cymosum Peregrine thistle
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2006 Steve Matson
|
|
Cirsium douglasii var. douglasii Douglas' swamp thistle, Douglas' thistle
native
Perennial herb 
2011 Neal Kramer
2011 Neal Kramer
2023 R.A. Chasey
|
|
Cirsium fontinale var. campylon Mt hamilton thistle, Mt. hamilton thistle
• rare native
Perennial herb 
2019 David Greenberger
2020 David Greenberger
2020 R.A. Chasey
|
|
Cirsium occidentale var. californicum Bigelow thistle, California thistle, Cobwebby thistle
native
Perennial herb 
2021 Amber Bedgood
2021 Mike Russler
2013 James Gonsman
|
|
Cirsium occidentale var. occidentale Cobweb thistle, Cobwebby thistle
native
Perennial herb 
2022 Suzanne L. Weakley
2020 Coty Sifuentes-Winter
2019 Randy Huey
|
|
Cirsium quercetorum Alameda county thistle, Brownie thistle
native
Annual, Perennial herb 
2023 R.A. Chasey
2022 Hunter Breck
2013 James Gonsman
|
|
Cirsium remotifolium var. odontolepis Pacific fringed thistle
native
Perennial herb 
2008 Gerald Carr
2022 Robert Steers
2020 MCOSD EDRR
|
|
Clarkia affinis Chaparral clarkia, Chaparral fairyfan
native
Annual herb 
2019 David Greenberger
2019 Ken Hickman
2020 Steve Laymon
|
|
Clarkia biloba ssp. biloba Two lobed clarkia, Twolobe clarkia
native
Annual herb 
2019 David Greenberger
2020 Steve Laymon
2022 Cynthia Powell
|
|
Clarkia breweri Brewer's clarkia, Fairy fans
• rare native
Annual herb 
2019 David Greenberger
2018 Elinor Gates
2019 Joey Santore
|
|
Clarkia concinna ssp. automixa Santa clara red ribbons
• rare native
Annual herb 
2020 Steve Laymon
2018 Elinor Gates
2022 Helen Hancock
|
|
Clarkia concinna ssp. concinna Red ribbons
native
Annual herb 
2020 Joaquin Hale
2021 Dana York
2019 Steve Laymon
|
|
Clarkia franciscana Presidio clarkia
• rare native
Annual herb 
2020 Steve Laymon
2017 Lech N
2020 Mike Russler
|
|
Clarkia gracilis ssp. gracilis Graceful clarkia, Slender clarkia
native
Annual herb 
2021 Steve Laymon
2023 Larry Dizmang
2020 Steve Laymon
|
|
Clarkia modesta Waltham Creek clarkia
native
Annual herb 
2020 David Greenberger
2020 Steve Laymon
2019 Steve Laymon
|
|
Clarkia purpurea ssp. purpurea Purple clarkia, Winecup clarkia
native
Annual herb 
2020 R.A. Chasey
2018 Steve Laymon
2020 R.A. Chasey
|
|
Clarkia purpurea ssp. viminea Large godetia, Purple clarkia, Winecup clarkia
native
Annual herb 
2020 Steve Laymon
2020 Steve Laymon
2020 Steve Laymon
|
|
Clarkia tembloriensis ssp. tembloriensis Temblor range clarkia
native
Annual herb 
2022 Mike Russler
2020 John Game
2019 Steve Laymon
|
|
Claytonia exigua ssp. exigua Little spring beauty, Serpentine springbeauty, Viridis
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Claytonia exigua ssp. glauca Blue leaved spring beauty, Serpentine springbeauty
native
Annual herb 
2022 Diana Wahl
2008 Keir Morse
2007 Keir Morse
|
|
Claytonia gypsophiloides Gypsum spring beauty, Gypsum springbeauty
native
Annual herb 
2021 Miao Ling He
2019 William Lundgren
2023 R.A. Chasey
|
|
Claytonia rubra ssp. depressa Red stemmed spring beauty, Redstem springbeauty
native
Annual herb 
2021 Zoya Akulova-Barlow
2020 Susan McDougall
2014 Garth Wadsworth
|
|
Clematis ligusticifolia Creek clematis, Western white clematis, Yerba de chiva
native
Perennial herb, Vine 
2018 Diane Etchison
2012 Steve Matson
2012 Steve Matson
|
|
Clintonia andrewsiana Andrew's clintonia, Blue bead lily, Red clintonia
native
Perennial herb 
2022 Suzanne L. Weakley
2020 Eliezer Margolis
2013 Paul Preston
|
|
Collinsia bartsiifolia var. bartsiifolia White blue eyed mary, White chinese houses, White collinsia
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Collinsia bartsiifolia var. stricta White blue eyed mary
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Collinsia parviflora Few flowered blue eyed mary, Small flowered blue eyed mary, Blue-eyed Mary
native
Annual herb 
2023 Alaine Arslan
2019 Susan McDougall
2022 Mike Russler
|
|
Collinsia sparsiflora var. collina Hillside collinsia
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2015 Steve Matson
|
|
Collinsia sparsiflora var. sparsiflora Few flowered collinsia
native
Annual herb 
2015 James Gonsman
2024 R.A. Chasey
2021 Charles Russell
|
|
Collinsia tinctoria Sticky chinese houses, Tincture plant
native
Annual herb 
2016 Steve Matson
2021 Mike Russler
2022 R.A. Chasey
|
|
Collomia diversifolia Serpentine collomia
• rare native
Annual herb 
2020 Matt Berger
2020 Matt Berger
2020 John Game
|
|
Collomia heterophylla Variableleaf collomia, Varied leaved collomia
native
Annual herb 
2018 Stacie Wolny
2017 Steve Matson
2018 Parker Santiago
|
|
Convolvulus simulans Small flowered morning glory
• rare native
Annual herb 
2016 Ron Vanderhoff
2017 James Bailey
2023 David Gowen
|
|
Corallorhiza maculata Spotted coralroot, Summer coral root, Summer coralroot
native
Perennial herb 
2023 Steve Conger
2013 BOB CASE
2018 Rick Wachs
|
|
Corallorhiza maculata var. maculata Summer coralroot
native
Perennial herb 
2019 Bob Sweatt
2020 Michael Mitchell
2019 Bob Sweatt
|
|
Corallorhiza striata Hooded coralroot, Striped coral root
native
Perennial herb 
2021 Mary Ann Machi
2022 Steve Conger
2019 Timothy Boomer
|
|
Cordylanthus nidularius Mt. Diablo bird's beak
• rare native
Annual herb (hemiparasitic) 
2014 John Game
2023 Ryan O'Dell
2012 Terrence Gosliner
|
|
Cordylanthus pilosus ssp. pilosus Hairy bird's beak
native
Annual herb 
2022 R.A. Chasey
2022 R.A. Chasey
2015 John Doyen
|
|
Cordylanthus rigidus ssp. rigidus Rigid bird's beak, Stiffbranch bird's beak
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Corethrogyne filaginifolia Common sandaster
native
Perennial herb 
2022 Mike Russler
2018 Ron Vanderhoff
2019 Diane Etchison
|
|
Cornus glabrata Brown dogwood
native
Tree, Shrub 
2021 Donald Burk
2021 Barbara Peck
2021 John Rawlings
|
|
Cornus sericea ssp. occidentalis Western dogwood
native
Shrub 
2019 David Greenberger
2018 Lynn Overtree
2020 Susan McDougall
|
|
Cornus sericea ssp. sericea American dogwood, Creek dogwood, Red osier dogwood
native
Shrub 
2003 Steve Matson
2019 Richard Spjut
2020 Doug Allshouse
|
|
Crassula aquatica Aquatic pygmy weed, Pigmy weed, Water pygmyweed
native
Annual herb 
2019 Ron Vanderhoff
2022 Ken-ichi Ueda
2022 Catherine Chang
|
|
Crocidium multicaule Common spring gold
native
Annual herb 
2016 jim richards
2019 Glenn Fine
2023 R.A. Chasey
|
|
Croton californicus California croton, Desert croton
native
Perennial herb 
2022 Dianne Lake
2022 Aaron Echols
2022 Aaron Echols
|
|
Cryptantha clevelandii var. florosa Coastal cryptantha
native
Annual herb 
2020 David Greenberger
2020 Ryan Carle
2023 Ken-ichi Ueda
|
|
Cryptantha decipiens Granel forget me not, Gravel cryptantha, Gravelbar cryptantha
native
Annual herb  2007 Neal Kramer
 2016 Keir Morse
 2016 Keir Morse
|
|
Cryptantha intermedia var. intermedia Common cryptantha
native
Annual herb 
2019 Ron Vanderhoff
2021 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Cryptantha nevadensis var. rigida Rigid cryptantha
native
Annual herb 
2016 Bill Thiessen
2019 Mary Merriman
2016 Bill Thiessen
|
|
Cryptantha micromeres Minute flowered cryptantha, Pygmyflower cryptantha, Small flowered cryptantha
native
Annual herb 
2021 Jodi McGraw
2020 Ken Hickman
2019 John Rawlings
|
|
Cryptantha microstachys Popcorn flower, Tejon cryptantha
native
Annual herb 
2019 Diane Etchison
2018 Ron Vanderhoff
2017 Diane Etchison
|
|
Cryptantha muricata var. jonesii Jones' cryptantha
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Cryptantha muricata var. muricata Showy prickly-nut cryptantha
native
Annual herb 
2023 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Cryptantha nemaclada Colusa cryptantha
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 Donald Myrick1999 California Academy of Sciences
|
|
Cryptantha rattanii Rattan's cryptantha
• rare native
Annual herb 
2016 Paul Preston
2016 Paul Preston
2016 Paul Preston
|
|
Cryptantha torreyana var. pumila Dwarf cryptantha
native
Annual herb 
2018 Michael Mitchell
2020 Ken Hickman
2023 John Rawlings
|
|
Cucurbita foetidissima Calabazilla, Missouri gourd, Mock orange
native
Perennial herb, Vine 
2014 Steve Matson
2014 Steve Matson
2021 Ron Vanderhoff
|
|
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
|
|
Cuscuta campestris Field dodder
native
Annual herb, Vine (parasitic) 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2022 Brad Cook
|
|
Cuscuta indecora var. indecora Big seed alfalfa dodder, Bigseed alfalfa dodder
native
Annual herb, Vine (parasitic)  2011 Sierra Pacific Industries
 2011 Sierra Pacific Industries
 2011 Sierra Pacific Industries
|
|
Cuscuta occidentalis California dodder
native
Annual herb, Vine (parasitic) 
2022 R.A. Chasey
2018 David popp
2022 R.A. Chasey
|
|
native
Annual herb, Vine (parasitic) 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 R.A. Chasey
|
|
Cuscuta subinclusa Canyon dodder
native
Annual herb, Vine (parasitic) 
2018 Ron Vanderhoff
2020 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Cyperus erythrorhizos Red rooted cyperus, Redroot flatsedge
native
Annual grasslike herb  2003 Steve Matson
|
|
Cyperus niger Black cyperus, Black flatsedge, Brown cyperus
native
Perennial grasslike herb 
2020 Ron Vanderhoff
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Cyperus odoratus Fragrant flatsedge
native
Annual grasslike herb 
2018 Ron Vanderhoff
2020 Jennifer Mo
2021 Ron Vanderhoff
|
|
Cyperus strigosus False nutsedge, False nutseed, Straw colored cyperus
native
Perennial grasslike herb 
2022 Donald Burk
2022 Donald Burk
2008 Keir Morse
|
|
Cystopteris fragilis Bladder fern, Brittle bladder fern, Brittle fern
native
Fern 
2020 Bob Sweatt
2021 Mike Russler
2023 Ken-ichi Ueda
|
|
Danthonia californica California oatgrass
native
Perennial grass 
2020 Sara Timby
2007 Steve Matson
2002 Bart and Susan Eisenberg
|
|
Datisca glomerata Durango root
native
Perennial herb 
2019 Ron Vanderhoff
2019 Diane Etchison
2019 Matt Berger
|
|
Deinandra bacigalupii Livermore moonshine, Livermore tarplant
• rare native
Annual herb 
2019 David Greenberger
2019 Steve Matson
2019 Steve Matson
|
|
Deinandra corymbosa Coastal tarweed
native
Annual herb 
2016 Michael Mitchell
2018 Zachariah Jordan
2015 Tim Miller
|
|
Deinandra kelloggii Kellogg's tarweed
native
Annual herb 
2021 Mike Russler
2023 R.A. Chasey
2021 Mike Russler
|
|
Deinandra lobbii Threeray tarweed
native
Annual herb 
2022 Ken-ichi Ueda
2022 Ken-ichi Ueda
2021 John Game
|
|
Delphinium californicum ssp. californicum California larkspur
native
Perennial herb 
2010 Toni Corelli
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Delphinium californicum ssp. interius California larkspur, Coastal larkspur, Hospital canyon larkspur
• rare native
Perennial herb 
2017 David Ogden
2017 David Greenberger
2017 David Ogden
|
|
Delphinium decorum ssp. decorum Coastal larkspur
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Delphinium gracilentum Meadow larkspur, Pine forest larkspur, Slender or Greene's Larkspur
native
Perennial herb 
2013 BOB CASE
2019 David Greenberger
2021 Dana York
|
|
Delphinium gypsophilum Gypsum loving larkspur, Pinoche creek larkspur
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Delphinium hansenii ssp. hansenii Eldorado larkspur, Hansen's larkspur
native
Perennial herb 
2021 Mike Russler
2021 David Gowen
2021 Mike Russler
|
|
Delphinium hesperium ssp. hesperium Foothill larkspur, Western larkspur
native
Perennial herb 
2018 Steve Matson
2018 Steve Matson
2016 Andrew Longman
|
|
Delphinium hesperium ssp. pallescens Foothill larkspur, Pale western larkspur, Western larkspur
native
Perennial herb 
2022 R.A. Chasey
2018 Gary McDonald
2022 Charles Russell
|
|
Delphinium nudicaule Canyon larkspur, Red or Orange Larkspur, Red larkspur
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Delphinium parryi ssp. parryi Parry's larkspur, San bernardino larkspur
native
Perennial herb 
2022 Mike Russler
2021 R.A. Chasey
2013 James Gonsman
|
|
Delphinium recurvatum Byron larkspur, Recurved larkspur
• rare native
Perennial herb 
2023 Christopher Collier
2019 Diane Etchison
2023 Christopher Collier
|
|
Delphinium variegatum ssp. variegatum Royal larkspur
native
Perennial herb 
2023 Hunter Breck
2022 Mike Russler
2022 Mike Russler
|
|
Dendromecon rigida Bush poppy, Tree poppy
native
Shrub 
2019 Eliezer Margolis
2018 Hunter Breck
2010 Suzanne L. Weakley
|
|
Deschampsia cespitosa ssp. cespitosa Tufted hair grass, Tufted hairgrass
native
Perennial grass 
2007 Keir Morse
2019 David Greenberger
2023 Dianne Lake
|
|
Deschampsia cespitosa ssp. holciformis California hairgrass, Coastal tufted hair grass, Tufted hairgrass
native
Perennial grass 
2023 Dianne Lake
2021 John Rawlings
2022 Dianne Lake
|
|
Deschampsia danthonioides Annual hairgrass
native
Annual grass 
2019 Paul Aigner
2003 Steve Matson
2018 Emily Allen
|
|
Deschampsia elongata Hairgrass, Slender hairgrass
native
Perennial grass 
2021 John Rawlings
2021 John Rawlings
2023 Robert Steers
|
|
Descurainia pinnata ssp. menziesii Menzies' tansy mustard, Menzies' tansymustard, Menzies'western tansy mustard
native
Annual herb 
2018 Nancy Hamlett
2018 Nancy Hamlett
2018 Nancy Hamlett
|
|
Dicentra formosa Pacific bleeding heart, Pacific bleedinghearts
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Dichelostemma multiflorum Many flowered brodiaea, Manyflower brodiaea, Roundtooth snakelily
native
Perennial herb 
2019 David popp
2011 Steve Matson
2019 John Rawlings
|
|
Dichelostemma volubile Twining brodiaea, Twining snakelily
native
Perennial herb 
2008 Steve Matson
2019 Verna Jigour
2018 Tim Lewis
|
|
Dichondra donelliana California ponysfoot, Dichondra
native
Perennial herb, Vine 
2019 Ken Hickman
2019 Ken Hickman
2012 Terrence Gosliner
|
|
Diplacus bolanderi Bolander's monkeyflower
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2023 Mike Russler
|
|
Diplacus douglasii Purple mouse ears
native
Annual herb 
2023 Timothy Boomer
2023 Timothy Boomer
2023 Timothy Boomer
|
|
Diplacus kelloggii Kellogg's monkeyflower
native
Annual herb 
2016 Steve Matson
2005 Steve Matson
2016 Steve Matson
|
|
Diplacus rattanii Rattan's monkeyflower
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Diplacus tricolor Tricolor monkeyflower
native
Annual herb 
2020 Matt Berger
2022 Steve Matson
2022 Steve Matson
|
|
Dirca occidentalis Western leatherwood
• rare native
Shrub 
2017 John Game
2024 William Blaker
2018 David Greenberger
|
|
Downingia bella Hoover's calicoflower, Hoover's downingia
native
Annual herb 
2017 Ray Gill
2023 Emily Sluiman
2019 Diane Etchison
|
|
Downingia cuspidata Toothed calicoflower, Toothed downingia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Downingia insignis Harlequin calicoflower, Harlequin downingia
native
Annual herb 
2019 David Greenberger
2023 Bill Kress
2019 Ramona Robison
|
|
Downingia pulchella Flatface calicoflower, Flatface downingia
native
Annual herb 
2023 R.A. Chasey
2022 Charles Russell
2022 Charles Russell
|
|
Draba cuneifolia Wedge leaved draba, Wedgeleaf draba
native
Annual herb 
2019 Matt Berger
2006 Steve Matson
2023 Ron Vanderhoff
|
|
Draba verna Spring draba, Whitlow grass, Whitlowgrass
non-native
Annual herb 
2011 Steve Matson
2004 Steve Matson
2016 Steve Matson
|
|
Dudleya cymosa ssp. cymosa Canyon dudleya, Canyon liveforever
native
Perennial herb 
2020 R.A. Chasey
2014 James Gonsman
2019 Chico Hiking Association
|
|
Dudleya cymosa ssp. paniculata Canyon liveforever, Diablo range dudleya
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2022 Helen Hancock
|
|
Dudleya farinosa Bluff lettuce, North coast dudleya, Powdery liveforever
native
Perennial herb 
2022 Mike Russler
2019 Amy Rapport
2019 Heather Morrison
|
|
Eastwoodia elegans Eastwoodia, Yellow aster, Yellow mock aster
native
Shrub 
2019 Diane Etchison
2022 David Strauch
2019 Diane Etchison
|
|
Echinodorus berteroi Burhead, Upright burrhead
native
Perennial herb (aquatic) 
2019 Neal Kramer
2021 Ron Vanderhoff
2019 Neal Kramer
|
|
Eclipta prostrata False daisy
native
Annual herb 
2018 Ron Vanderhoff
2020 Ron Vanderhoff
2020 R.A. Chasey
|
|
Ehrendorferia chrysantha Golden eardrops
native
Perennial herb 
2019 David Greenberger
2020 Bryant Baker
2019 Ron Vanderhoff
|
|
Elatine brachysperma Short seed waterwort, Shortseed waterwort
native
Annual, Perennial herb 
2023 Ron Vanderhoff
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Elatine californica California waterwort
native
Annual, Perennial herb 
2023 Keir Morse
Mary Ann Hannon
2015 Vernon Smith
|
|
Eleocharis acicularis var. acicularis Needle spike rush, Needle spikerush
native
Perennial grasslike herb 
2017 Toni Corelli
2023 R.A. Chasey
2023 Robin Carter-Ervin
|
|
Eleocharis parishii Parish's spike rush, Parish's spikerush
native
Perennial grasslike herb 
2014 Steve Matson
2014 Steve Matson
2018 Rachelle Gray
|
|
Eleocharis parvula Dwarf spikerush, Small spikerush
• rare native
Perennial grasslike herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Eleocharis rostellata Beaked spikerush, Walking sedge
native
Perennial grasslike herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Elymus elymoides var. elymoides Squirrel tail grass
native
Perennial grass 
2020 Susan McDougall
2020 Susan McDougall
2012 Dylan Neubauer
|
|
Elymus mollis ssp. mollis American dune grass, sea lyme grass
native
Perennial grass 
2021 Ramona Robison
2021 Ramona Robison
2009 Toni Corelli
|
|
Elymus multisetus Big squirreltail grass
native
Perennial grass 
2019 Ron Vanderhoff
2023 Helen Hancock
2021 Denise Defreese
|
|
Elymus stebbinsii California wheat grass, Parish wheatgrass, Stebbins' wildrye
native
Perennial grass 
2021 Arlee Montalvo
2007 Steve Matson
2018 Steve Matson
|
|
Elymus trachycaulus ssp. trachycaulus Slender wheatgrass
native
Perennial grass 
2022 John Rawlings
2019 Ken Hickman
2019 Ken Hickman
|
|
native
Perennial grass 
2022 Aaron Sunshine
2022 John Rawlings
2018 Gregory Arena
|
|
Emmenanthe penduliflora var. penduliflora Whispering bells, Whisperingbells
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2010 Steve Matson
|
|
Enemion occidentale WESTERN RUE-ANEMONE, Western false rue anemone
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2004 Steve Matson
|
|
Enemion stipitatum Siskiyou false rue anemone
native
Perennial herb 
2021 Steve Laymon
2020 Steve Laymon
2008 Keir Morse
|
|
Ephedra californica California ephedra, California jointfir, Desert tea
native
Shrub 
2021 Kristen Nelson
2021 Kristen Nelson
2022 Mike Russler
|
|
Ephedra viridis Green ephedra, Mormon tea, Mountain ephedra
native
Shrub 
2021 Bryant Baker
2021 Bryant Baker
2021 Bryant Baker
|
|
Epilobium campestre Smooth boisduvalia
native
Annual herb 
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Epilobium ciliatum ssp. watsonii Fringed willowherb, Watson's willowherb, Willow herb
native
Perennial herb 
2012 BOB CASE
2012 BOB CASE
2021 Jamie Spielmann
|
|
Epilobium cleistogamum Cleistogamous boisduvalia, Selfing willowherb
native
Annual herb  2007 Neal Kramer
 2015 Neal Kramer
 2004 Carol W. Witham
|
|
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
|
|
Epipactis gigantea Giant helleborine, Stream orchid, Stream orchis
native
Perennial herb 
2016 Barry Rice
2020 Ron Vanderhoff
2018 Anna Sereno
|
|
Equisetum laevigatum Horsetail, Smooth horsetail, Smooth scouring rush
native
Fern 
2020 David popp
2021 Ron Vanderhoff
2021 Richard Spjut
|
|
Eragrostis mexicana ssp. virescens Mexican lovegrass, Orcutt's eragrostis
native
Annual grass 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Eremalche parryi ssp. parryi Parry's mallow
native
Annual herb 
2019 Dee Shea Himes
2022 Mike Russler
2019 Dee Shea Himes
|
|
Eremothera boothii ssp. decorticans Shredding evening-primrose
native
Annual herb 
2019 Matt Berger
2020 David Greenberger
2020 Bryant Baker
|
|
Eriastrum abramsii Abrams' eriastrum, Abrams' woollystar
native
Annual herb 
2019 Diane Renshaw
2021 Alice Cummings
2019 Stacie Wolny
|
|
Eriastrum brandegeeae Brandegee's eriastrum
• rare native
Annual herb 
2022 Steve Laymon
© 1997 Dean Wm. Taylor
|
|
Eriastrum pluriflorum ssp. pluriflorum Many-flowered eriastrum
native
Annual herb 
2021 Mike Russler
2017 George Butterworth
2021 Mike Russler
|
|
Eriastrum sapphirinum Sapphire eriastrum, Sapphire woollystar
native
Annual herb 
2018 Diane Etchison
2014 Steve Matson
2014 Steve Matson
|
|
Ericameria arborescens Golden fleece, Goldenfleece
native
Shrub 
2019 Bryant Baker
2019 Bryant Baker
2015 Hayley Ross
|
|
Ericameria nauseosa var. mohavensis Mojave rabbitbrush
native
Shrub 
2018 Richard Spjut
2022 Helen Hancock
2022 R.A. Chasey
|
|
Erigeron petrophilus var. petrophilus Cliff fleabane, Rockloving erigeron
native
Perennial herb 
2019 Ken Hickman
2022 Ellen Uhler
2018 Adam Chasey
|
|
Erigeron philadelphicus var. philadelphicus Philadelphia fleabane
native
Perennial herb 
2021 R.A. Chasey
2022 Dana York
2021 R.A. Chasey
|
|
Erigeron reductus var. angustatus Lesser california rayless fleabane, Narrow leaved rayless daisy, Pine erigeron
native
Perennial herb 
2022 Helen Hancock
2022 Helen Hancock
2022 Helen Hancock
|
|
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 deserticola Colorado desert buckwheat
native
Shrub 
2017 Fred Melgert / Carla Hoegen
2008 Michael Charters
2008 Michael Charters
|
|
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 gracile var. gracile Slender buckwheat, Slender woolly buckwheat
native
Annual herb 
2021 Mike Russler
2022 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Eriogonum inerme var. inerme Unarmed buckwheat
native
Annual herb 
2019 James Bailey
2019 James Bailey
2019 James Bailey
|
|
Eriogonum latifolium Coast buckwheat, Coast eriogonum, Seaside buckwheat
native
Perennial herb 
2016 Suzanne L. Weakley
2021 Dylan Neubauer
2019 Patrick Furtado
|
|
Eriogonum luteolum var. caninum Tiburon buckwheat
• rare native
Annual herb 
2020 R.A. Chasey
2020 R.A. Chasey
2021 R.A. Chasey
|
|
Eriogonum luteolum var. luteolum Golden buckwheat, Goldencarpet buckwheat
native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Eriogonum nudum var. auriculatum Naked buckwheat, Nude buckwheat
native
Shrub 
2020 R.A. Chasey
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Eriogonum nudum var. pauciflorum Few flowered buckwheat, Long trumpet, Naked buckwheat
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Eriogonum nudum var. psychicola Antioch dunes buckwheat
• rare native
Perennial herb 
2019 Cathie Moog
2020 Cathie Moog
2022 Dianne Lake
|
|
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 umbellatum var. smallianum Sulphur buckwheat
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Eriogonum wrightii var. trachygonum Bastardsage, Wright s buckwheat, Wright's buckwheat
native
Perennial herb, Shrub 
2023 Dianne Lake
2019 Steve Matson
2021 Mike Russler
|
|
Eriophyllum jepsonii Jepson eriophyllum, Jepson's woolly sunflower
• rare native
Perennial herb 
2021 Mike Russler
2021 Mike Russler
2018 Richard Spjut
|
|
Eriophyllum lanatum var. achilleoides Yarrow leaved woolly sunflower
native
Perennial herb 
2006 Steve Matson
2008 Steve Matson
2006 Steve Matson
|
|
Eriophyllum staechadifolium Lizard tail, Seaside golden yarrow, Seaside woolly sunflower
native
Perennial herb 
2020 Susan McDougall
2014 James Gonsman
2019 Mary Conway
|
|
Eriophyllum wallacei Wallace eriophyllum, Wallace's woolly daisy
native
Annual herb 
2022 Steve Matson
2023 Steve Matson
2022 Steve Matson
|
|
Eryngium aristulatum var. hooveri Hoover's button celery, Hoover's eryngo
• rare native
Annual, Perennial herb  2011 Aaron Arthur
 2014 Maya Goklany
 2010 Chris Winchell
|
|
Eryngium armatum Coastal eryngo, Coyote thistle, Prickly coyote thistle
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2015 Tim Miller
|
|
Eryngium articulatum Beethistle, Coyote thistle
native
Perennial herb 
2021 John Game
2015 Steve Matson
2015 Steve Matson
|
|
Eryngium castrense Great valley button celery, Great valley eryngo
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2023 Robin Carter-Ervin
|
|
Eryngium racemosum Delta button celery, Delta eryngo
• rare native
Annual, Perennial herb  2020 Zoya Akulova
 2010 Chris Winchell
 2020 Zoya Akulova
|
|
Eryngium spinosepalum Spiny sepaled button celery, Spinysepal eryngo
• rare native
Annual, Perennial herb 
2017 Douglas Gordon-Blackwood
2023 Ryan O'Dell
2015 Neal Kramer
|
|
Eryngium vaseyi var. vallicola Coyote thistle
native
Perennial herb 
2021 David Greenberger
2021 Barry Rice
2021 Barry Rice
|
|
Erysimum capitatum var. angustatum Contra costa wallflower
• rare native
Perennial herb 
2024 Randy Huey
2022 Dianne Lake
2018 Molly Ferrell
|
|
Erysimum capitatum var. capitatum Sanddune wallflower
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Erythranthe androsacea Androsace monkeyflower
native
Annual herb 
2019 Matt Berger
2019 Matt Berger
2024 Bob Steele
|
|
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 latidens Broad toothed monkeyflower
native
Annual herb 
2019 David Greenberger
2017 Amelia Ryan
2023 Ryan O'Dell
|
|
Eschscholzia caespitosa Foothill poppy, Tufted eschscholzia, Tufted poppy
native
Annual herb 
2019 Ron Vanderhoff
2021 Lisa Berry
2022 Cynthia Powell
|
|
Eschscholzia rhombipetala Diamond petaled california poppy, Diamondpetal california poppy
• rare native
Annual herb 
2012 Lisa Paterson
2015 Lesley Hamamoto
2012 Lisa Paterson
|
|
Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta, Spotted hideseed
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Euonymus occidentalis var. occidentalis Western burning bush
native
Tree, Shrub 
2021 Chris Brant
2019 Toni Corelli
2021 Chris Brant
|
|
Euphorbia ocellata ssp. ocellata Valley spurge
native
Annual, Perennial herb 
2021 Mike Russler
2021 Mike Russler
2019 Catherine Talbot
|
|
Euphorbia serpillifolia Thyme-leafed spurge
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2005 Steve Matson
|
|
Extriplex californica California orach
native
Perennial herb 
2020 Ron Vanderhoff
2006 Steve Matson
2020 Ron Vanderhoff
|
|
Extriplex joaquinana San Joaquin spearscale
• rare native
Annual herb 
2021 Suzanne L. Weakley
2022 Charles Russell
2017 Marco Siragusa
|
|
Festuca californica California fescue
native
Perennial grass 
2019 Justin Luong
2022 Justin Luong
2012 Aaron Arthur
|
|
Festuca elmeri Coast fescue, Elmer fescue
native
Perennial grass 
2019 Ken Hickman
2022 John Rawlings
2007 Toni Corelli
|
|
Festuca idahoensis Blue bunchgrass, Blue fescue, Idaho fescue
native
Perennial grass 
2016 Brett Dean
2020 Paul Aigner
2016 Andrew Longman
|
|
Festuca octoflora Sixweeks grass
native
Annual grass 
2023 R.A. Chasey
2020 Sara Timby
2018 Ken Hickman
|
|
Festuca rubra Red fescue
native
Perennial grass 
2012 Ove Anderson
2022 John Rawlings
2018 Alexandra Kookootsedes
|
|
Forestiera pubescens Desert olive, Stretchberry
native
Shrub 
2012 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Frangula californica ssp. tomentella Hoary coffeeberry
native
Shrub 
2020 R.A. Chasey
2016 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Fraxinus dipetala California ash, Flowering ash, Foothill ash
native
Tree, Shrub 
2023 Ron Vanderhoff
2021 Bryant Baker
2021 Bryant Baker
|
|
Fraxinus latifolia Oregon ash
native
Tree 
2021 Robert Whitaker
2021 Richard Spjut
2012 Terrence Gosliner
|
|
Fremontodendron californicum California flannelbush, California fremontia, Flannel bush
native
Shrub 
2020 Suzanne L. Weakley
2019 Diane Etchison
2020 Tom Ballinger
|
|
Fritillaria agrestis Stinkbells
• rare native
Perennial herb (bulb) 
2023 Catherine Chang
2022 Dee Shea Himes
2021 Damon Tighe
|
|
Fritillaria falcata Talus fritillary
• rare native
Perennial herb (bulb) 
2019 joey malone
2019 Matt Berger
2023 Mike Russler
|
|
Fritillaria liliacea Fragrant fritillary
• rare native
Perennial herb (bulb) 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Galium andrewsii ssp. gatense Serpentine bedstraw
• rare native
Perennial herb 
2019 David Greenberger
2019 Steve Matson
2019 Steve Matson
|
|
Galium porrigens var. tenue Graceful bedstraw
native
Vine, Shrub 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Galium trifidum ssp. columbianum Threepetal bedstraw
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Galium triflorum Fragrant bedstraw, Sweet bedstraw, Sweet scented bedstraw
native
Annual herb 
2022 Ken-ichi Ueda
2022 Ken-ichi Ueda
2018 Ken Hickman
|
|
Garrya congdonii Chaparral silktassel, Congdon's silk tassel, Interior silktassel
native
Shrub 
2023 Steve Laymon
2020 Susan McDougall
2020 Susan McDougall
|
|
Garrya elliptica Coast silk tassel, Coast silktassel, Silk tassel bush or quinine bush
native
Tree, Shrub 
2004 Michael Charters
2020 John Rawlings
2020 Eliezer Margolis
|
|
Garrya flavescens Ashy silk tassel, Ashy silktassel
native
Shrub 
2020 Diane Etchison
2023 Ryan O'Dell
2020 Ron Vanderhoff
|
|
Garrya fremontii Bearbrush, Fremont's silk tassel
native
Shrub 
2023 R.A. Chasey
2020 Belinda Lo
2020 Rebecca Schoenenberger
|
|
Gilia achilleifolia ssp. achilleifolia California gilia
native
Annual herb 
2021 Helen Hancock
2022 R.A. Chasey
2021 Mary Conway
|
|
Gilia capitata ssp. capitata Blue field gilia, Bluehead gilia
native
Annual herb 
2011 Gerald Carr
2022 R.A. Chasey
2011 Gerald Carr
|
|
Gilia capitata ssp. staminea Bluehead gilia, Globe gilia
native
Annual herb 
2017 Julie Watson
2021 R.A. Chasey
2016 Julie Watson
|
|
Gilia clivorum Many stemmed gilia, Purple spot gilia, Purplespot gilia
native
Annual herb 
2013 Gary McDonald
2013 Gary McDonald
2021 Helen Hancock
|
|
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
|
|
Githopsis diffusa ssp. robusta San gabriel bluecup
native
Annual herb  2012 Anuja Parikh and Nathan Gale
 2012 Aaron Arthur
 2012 Anuja Parikh and Nathan Gale
|
|
Githopsis specularioides Common bluecup, Venus' looking glass
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2021 Mike Russler
|
|
Glyceria leptostachya Davy mannagrass, Manna grass
native
Perennial grass (aquatic) 
2017 Elliot Gunnison
2008 Keir Morse
2008 Steve Matson
|
|
Glyceria Xoccidentalis Western manna grass
non-native
Perennial grass (aquatic) 
2007 Gerald Carr
2007 Gerald Carr
2007 Gerald Carr
|
|
Glycyrrhiza lepidota American licorice, Lichorice, Wild licorice
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Gratiola ebracteata Bractless hedge hyssop, Common hedge hyssop
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Grindelia hirsutula Gumweed, Hairy gumweed
native
Perennial herb 
2021 R.A. Chasey
2020 R.A. Chasey
2015 Ken Lunders
|
|
Grindelia stricta var. angustifolia Marsh gumplant, Oregon gumweed
native
Perennial herb 
2021 Helen Hancock
2021 Toni Corelli
2014 James Gonsman
|
|
Grindelia stricta var. platyphylla Gumplant, Gumweed, Oregon gumweed
native
Perennial herb 
2020 Mary Conway
2019 Patrick Furtado
2014 Dee Warenycia
|
|
Pectocarya pusilla Little gruvelia
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Gutierrezia californica California matchweed, Matchweed, snakeweed, San joaquin snakeweed
native
Perennial herb, Shrub 
2021 Helen Hancock
2018 Ron Vanderhoff
2021 Mike Russler
|
|
Helenium bigelovii Bigelow's sneezeweed, Sneezeweed
native
Perennial herb 
2020 Rebecca Schoenenberger
2019 Bryant Baker
2019 Bob Sweatt
|
|
Helianthella californica var. californica California helianthella
native
Perennial herb 
2023 Helen Hancock
2023 Helen Hancock
2019 Chasey
|
|
Helianthella castanea Mt. diablo helianthella
• rare native
Perennial herb 
2022 Michael L. Uhler
2019 David Greenberger
2019 Adam Chasey
|
|
Helianthus californicus California sunflower
native
Perennial herb 
2021 Mike Russler
2020 David Greenberger
2021 Mike Russler
|
|
Helianthus gracilentus Slender sunflower
native
Perennial herb 
2021 Ron Vanderhoff
2021 Mike Russler
2021 Diane Etchison
|
|
Hemizonia congesta ssp. lutescens Hayfield tarweed
native
Annual herb 
2021 R.A. Chasey
2023 R.A. Chasey
2023 R.A. Chasey
|
|
Hesperevax acaulis var. ambusticola Fire evax, Stemless dwarf cudweed
native
Annual herb 
2022 Ken Hickman
2021 R.A. Chasey
2022 Ken Hickman
|
|
Hesperevax caulescens Dwarf dwarf cudweed, Hogwallow starfish
• rare native
Annual herb 
2018 John Dittes
2020 Phil Johnson
2022 Steve Matson
|
|
Hesperocyparis sargentii Sargent cypress
native
Tree, Shrub 
2021 Bryant Baker
2021 R.A. Chasey
2021 Bryant Baker
|
|
Hesperolinon serpentinum Two carpellate western flax, Twocarpel dwarf flax
• rare native
Annual herb 
2017 John Game
2021 R.A. Chasey
2017 Adam Chasey
|
|
Hesperolinon breweri Brewer's dwarf flax, Brewer's western flax
• rare native
Annual herb 
2021 R.A. Chasey
2019 R.A. Chasey
2007 Aaron Schusteff
|
|
Hesperolinon californicum California western flax, California dwarf flax
native
Annual herb 
2021 R.A. Chasey
2021 Cynthia Powell
2008 Neal Kramer
|
|
Hesperolinon clevelandii Allen springs dwarf flax, Allen springs western flax
native
Annual herb 
2020 David Greenberger
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Hesperolinon disjunctum Coast range dwarf flax, Coast range western flax
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
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
|
|
Heterocodon rariflorum Few flowered heterocodon, Rareflower heterocodon, Western pear flower
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Heterotheca oregona var. rudis Oregon false goldenaster, Red oregon goldenaster
native
Perennial herb 
2021 Helen Hancock
2021 Helen Hancock
2021 Helen Hancock
|
|
Heterotheca oregona var. scaberrima Oregon false goldenaster, Rough oregon goldenaster
native
Perennial herb 
2017 Ken-ichi Ueda
2017 Christopher Hauser
2014 Richard Spellenberg
|
|
Heterotheca sessiliflora var. bolanderioides Golden aster, Sessileflower false goldenaster
native
Annual herb 
2021 Jay Cassianni
2019 Cynthia Powell
2018 Stacie Wolny
|
|
Heterotheca sessiliflora ssp. bolanderi Bolander's goldenaster, Golden aster, Sessileflower false goldenaster
native
Perennial herb 
2015 Tim Miller
2020 Mary Sue Ittner
2019 Julia King
|
|
Heuchera micrantha Alum root, Crevice alumroot
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow
• rare native
Perennial herb 
2020 Charles Russell
2021 David popp
2022 Morgan Stickrod
|
|
Hieracium albiflorum White flowered hawkweed, White hawkweed
native
Perennial herb 
2003 Steve Matson
2021 Doug Allshouse
2020 Bob Sweatt
|
|
Hoita macrostachya California hemp, Large leather root
native
Perennial herb 
2020 Ron Vanderhoff
2022 Natalie McNear
2021 Julie King
|
|
Hoita orbicularis Creeping leather root, Round leaved psoralea, Roundleaf leather root
native
Perennial herb 
2015 Tim Miller
2018 Hunter Breck
2019 Shane Hanofee
|
|
Hoita strobilina Loma prieta psoralea
• rare native
Perennial herb 
2020 Stacie Wolny
2017 S Hinton
2018 Barry Thomson
|
|
Holocarpha macradenia Santa cruz tarplant
• rare native
Annual herb 
2019 Denise Wight
2001 John Game
2019 Michele Hammond
|
|
Holocarpha obconica San joaquin tarweed
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Holozonia filipes Greene's white crown, Holozonia, Whitecrown
native
Perennial herb 
2015 Steve Matson
2022 R.A. Chasey
2023 R.A. Chasey
|
|
Hordeum brachyantherum ssp. californicum California barley, California meadow barley
native
Perennial grass  2011 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Hordeum depressum Alkali barley, Dwarf barley, Low barley
native
Annual grass 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Hordeum jubatum ssp. jubatum Foxtail barley, squirreltail barley
native
Perennial grass 
null
2019 Barry Breckling
2013 Aaron Arthur
|
|
Horkelia californica var. californica California horkelia
native
Perennial herb 
2020 Mary Conway
2021 Mary Conway
2015 Toni Corelli
|
|
Horkelia californica var. elata California horkelia
native
Perennial herb 
2019 David Greenbeger
2018 Steven Perry
2022 Jim Xerogeanes
|
|
Horkelia californica var. frondosa California horkelia
native
Perennial herb 
2022 Mark Gary
2016 John Doyen
2016 John Doyen
|
|
Horkelia cuneata var. sericea Kellogg's horkelia
• rare native
Perennial herb 
2021 Cara Wilcox
2022 Irene Rosen
2021 Cara Wilcox
|
|
Hornungia procumbens Prostrate hutchinsia
non-native
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Hosackia crassifolia var. crassifolia Broad leaved lotus
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus
native
Perennial herb 
2014 James Gonsman
2017 Ron Vanderhoff
2006 Steve Matson
|
|
Hosackia stipularis var. stipularis Stipulate lotus
native
Perennial herb 
2022 Mary Conway
2022 Mary Conway
2022 R.A. Chasey
|
|
Hydrocotyle ranunculoides Floating marsh pennywort, Floating marshpennywort, Marsh pennywort
native
Perennial herb 
2019 R.A. Chasey
2023 R.A. Chasey
2017 Michael Mitchell
|
|
Hydrocotyle verticillata Whorled marsh pennywort, Whorled marshpennywort
native
Perennial herb 
2013 Ron Vanderhoff
2020 Robert Byrnes
2019 David Greenberger
|
|
Hydrophyllum occidentale California waterleaf, Western waterleaf
native
Perennial herb 
2020 Susan McDougall
2020 Susan McDougall
2020 Steve Conger
|
|
Hypericum scouleri Scouler's St John's wort
native
Perennial herb 
2021 Julie A. Kierstead
2022 Steve Matson
2019 Julie Kierstead Nelson
|
|
Idahoa scapigera Oldstem idahoa
native
Annual herb 
2021 David popp
2010 Norman Jensen
2006 Keir Morse
|
|
Iris douglasiana Douglas iris, Douglas' iris
native
Perennial herb 
2020 Susan McDougall
2019 Patrick Furtado
2022 Suzanne L. Weakley
|
|
Iris longipetala Central coast iris, Coast iris
• rare native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Isocoma arguta Carquinez goldenbush, Carquinez isocoma
• rare native
Shrub 
2022 R.A. Chasey
2010 Doug Wirtz
2022 R.A. Chasey
|
|
Isoetes howellii Howell's quillwort, Quillwort
native
2022 Ken-ichi Ueda
2022 Ken-ichi Ueda
2023 R.A. Chasey
|
|
Isolepis carinata Keeled bulrush
native
Annual grasslike herb 
2016 Toni Corelli
2021 John Rawlings
2023 R.A. Chasey
|
|
Isolepis cernua Low bulrush
native
Annual grasslike herb 
2021 R.A. Chasey
2023 R.A. Chasey
2018 Ron Vanderhoff
|
|
Jaumea carnosa Fleshy jaumea, Marsh jaumea
native
Perennial herb 
2020 Ron Vanderhoff
2018 Angelique Herman
2020 R.A. Chasey
|
|
Juglans hindsii Northern california black walnut
• rare native
Tree 
2016 Steve Matson
2016 Steve Matson
2018 Ron Vanderhoff
|
|
Juncus ambiguus Saline toad rush, Seasice rush
native
Annual grasslike herb  2011 Hattie Brown (Juncus bufonius)
 2011 Aaron Arthur (Juncus bufonius)
 2007 Dr. Amadej Trnkoczy (Juncus bufonius)
|
|
Juncus articulatus ssp. articulatus Jointed rush
native
Perennial grasslike herb 
2022 joaquin hale
2022 joaquin hale
2022 joaquin hale
|
|
Juncus bufonius var. occidentalis Round fruited toad rush, Western toad rush
native
Perennial grasslike herb  2004 Steve Matson
|
|
Juncus dubius Dubius rush, Mariposa rush
native
Perennial grasslike herb 
2015 Keir Morse
2015 Keir Morse
2015 Keir Morse
|
|
Juncus ensifolius Sword leaved rush, Swordleaf rush, Three stamened rush
native
Perennial grasslike herb 
2016 Phil Johnson
2018 David popp
2009 Julie A. Kierstead
|
|
Juncus lescurii Dune rush
native
Perennial grasslike herb 
2008 Toni Corelli
2008 Toni Corelli
2008 Toni Corelli
|
|
Juncus oxymeris Pointed rush
native
Perennial grasslike herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Juncus phaeocephalus var. paniculatus Brown headed rush, Brownhead rush, Spreading brown headed rush
native
Perennial grasslike herb 
2019 John Rawlings
2021 John Rawlings
2020 Alice Cummings
|
|
Juncus phaeocephalus var. phaeocephalus Brown headed rush, Brownhead rush
native
Perennial grasslike herb 
2019 Dee Shea Himes
2019 Ken Hickman
2019 John Rawlings
|
|
Juniperus californica California juniper
native
Shrub 
2019 Patrick Furtado
2017 Gary McDonald
2014 Ron Vanderhoff
|
|
Keckiella breviflora var. breviflora Gaping keckiella, Gaping penstemon
native
Shrub 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Keckiella corymbosa Red beardtongue, Redwood keckiella
native
Shrub 
2021 Mary Ann Machi
2019 David Greenberger
2022 Ryan O'Dell
|
|
Koeleria macrantha June grass, Prairie junegrass
native
Perennial grass 
2023 Helen Hancock
2015 Steve Matson
2015 Steve Matson
|
|
Kopsiopsis strobilacea ground cone, groundcone , California ground-cone
native
Perennial herb (parasitic) 
2020 Ralph Henson
2023 MCOSD EDRR
2019 Jonathan Lee
|
|
Laennecia coulteri Coulter's horseweed
native
Annual herb 
2012 Steve Matson
2012 Steve Matson
2012 Steve Matson
|
|
Lastarriaea coriacea Leather spineflower
native
Annual herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2021 Jacob Smith
|
|
Lasthenia conjugens Contra costa goldfields
• rare native
Annual herb 
2022 Irene Rosen
2022 Irene Rosen
2022 Scott Yarger
|
|
Lasthenia ferrisiae Alkali goldfields, Ferris' goldfields
• rare native
Annual herb 
2022 Mary Merriman
2022 Denise Defreese
2023 Ryan O'Dell
|
|
Lasthenia fremontii Fremont's goldfields, Vernal pool goldfields
native
Annual, Perennial herb 
2023 G Froelich
2024 Cynthia Powell
2022 Steve Matson
|
|
Lasthenia glaberrima Smooth goldfields
native
Annual herb 
2017 Michael Mitchell
2020 Matt Berger
2020 R.A. Chasey
|
|
Lasthenia glabrata ssp. glabrata Yellow rayed goldfields, Yellowray goldfields
native
Annual herb 
2022 Morgan Stickrod
2022 Morgan Stickrod
2014 Robert F Norris
|
|
Lasthenia maritima Maritime goldfields, Seaside goldfields
native
Annual herb 
2015 Richard Chasey
2013 Robert Steers/NPS
2013 Robert Steers/NPS
|
|
Lasthenia microglossa Small rayed goldfields, Smallray goldfields, Smallrayed lasthenia
native
Annual herb 
2019 Matt Berger
2022 Ryan O'Dell
2022 Ryan O'Dell
|
|
Lasthenia minor Coastal goldfields, Smooth lasthenia, Woolly goldfields
native
Annual herb 
2007 Toni Corelli
2019 James Gonsman
2015 Toni Corelli
|
|
Lasthenia platycarpha Alkali goldfields
native
Annual herb 
2016 Marco Siragusa
2008 Zoya Akulova
2008 Zoya Akulova
|
|
Lathyrus jepsonii var. californicus California tule pea
native
Perennial herb 
2020 R.A. Chasey
2019 Esther Cole
2020 R.A. Chasey
|
|
Lathyrus jepsonii var. jepsonii Delta tule pea
• rare native
Perennial herb 
2022 Liz Bittner
2022 Sara Taylor
2022 Sara Taylor
|
|
Layia chrysanthemoides Smooth tidy tips, Smooth tidytips
native
Annual herb 
2021 Charles Russell
2017 Steve Matson
2021 Charles Russell
|
|
Layia gaillardioides Woodland layia, Woodland tidytips
native
Annual herb 
2021 R.A. Chasey
2022 John Rawlings
2019 John Rawlings
|
|
Layia glandulosa White layia, White tidy tips, Whitedaisy tidytips
native
Annual herb 
2016 James Gonsman
2021 Mike Russler
2021 Mike Russler
|
|
Layia hieracioides Hawkweed layia, Tall layia, Tall tidytips
native
Annual herb 
2020 David Greenberger
2021 R.A. Chasey
2022 R.A. Chasey
|
|
Layia platyglossa Coastal tidytips
native
Annual herb 
2015 Amy Rapport
2019 Jenna T. B. Ekwealor
2017 Chris Mo
|
|
Leersia oryzoides Rice cutgrass
native
Perennial grass 
2019 Jennifer Mo
2008 Keir Morse
2017 jerry fitch
|
|
Legenere limosa False venus' looking glass, Legenere
• rare native
Annual herb 
1902 John Game
2019 Ramona Robison
2019 Ramona Robison
|
|
Lepechinia calycina White pitcher sage, Woodbalm, pitcher sage
native
Shrub 
2020 Janice Kuch
2021 Ryan Carle
2023 Mike Russler
|
|
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 
2023 Catherine Chang
2023 Catherine Chang
2022 Dianne Lake
|
|
Lepidium latipes Dwarf pepper grass, Dwarf peppergrass, San diego pepperweed
native
Annual herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lepidium oblongum Veiny pepper grass, Veiny pepperweed, Wayside peppergrass
native
Annual herb 
2017 Ron Vanderhoff
2014 Steve Matson
2017 Ron Vanderhoff
|
|
Lepidium oxycarpum Forked pepperweed, Sharp podded pepper grass
native
Annual herb 
2022 R.A. Chasey
2009 Zoya Akulova
2007 Christopher Bronny
|
|
Lepidospartum squamatum California broomsage, California broomshrub, Scale broom
native
Shrub 
2021 Mike Russler
2021 David Wolfson
2021 Mike Russler
|
|
Leptochloa fusca ssp. fascicularis Bearded sprangletop
native
Annual grass 
2023 Donald Burk
2021 R.A. Chasey
2021 Ken Hickman
|
|
Leptochloa fusca ssp. uninervia Mexican sprangletop
native
Annual grass 
2009 Ron Vanderhoff
2012 James M. Andre
2016 Neil Uelman
|
|
Leptosiphon ambiguus Serpentine leptosiphon
• rare native
Annual herb 
2019 David Greenberger
2019 Paul Hankamp
2018 Elinor Gates
|
|
Leptosiphon androsaceus False babystars
native
Annual herb 
2010 Jeffrey Hapeman
2020 R.A. Chasey
2014 James Gonsman
|
|
Leptosiphon acicularis Golden linanthus
• rare native
Annual herb 
2017 Adam Chasey
2023 R.A. Chasey
2019 David Greenberger
|
|
Leptosiphon bolanderi Bolander's linanthus
native
Annual herb 
2019 David Greenberger
2022 Dana York
2019 David Greenberger
|
|
Leptosiphon ciliatus Whiskerbrush
native
Annual herb 
2020 Bob Sweatt
2020 Bob Sweatt
2018 Glenn Fine
|
|
Leptosiphon grandiflorus Large flowered leptosiphon
• rare native
Annual herb 
2023 Suzanne L. Weakley
2017 David Greenberger
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 calliopsidea Leafy stemmed coreopsis
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Leptosyne hamiltonii Mt. hamilton coreopsis
• rare native
Annual herb 
2022 William Lundgren
2022 Helen Hancock
2022 Mike Russler
|
|
Leptosyne stillmanii Stillman's coreopsis
native
Annual herb 
2020 Matt Berger
2020 Matt Berger
2020 Matt Berger
|
|
Lessingia hololeuca Woolly headed lessingia, Woollyhead lessingia
• rare native
Annual herb 
2023 R.A. Chasey
2023 R.A. Chasey
2020 Ken Hickman
|
|
Lessingia nana Dwarf lessingia, Little lessingia
native
Annual herb 
2021 David popp
2016 Cristian Singer
2020 Dustin Brown
|
|
Lessingia nemaclada Slender stemmed lessingia, Slenderstem lessingia, Thread stem lessingia
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
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
|
|
Lewisia rediviva var. rediviva Bitter root
native
Perennial herb 
2019 Ken Hickman
2019 Matt Berger
2019 Matt Berger
|
|
Ligusticum apiifolium Celery leaved lovage, Celeryleaf licorice root, Lovage
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lilaeopsis masonii Mason's lilaeopsis, Mudflat quillplant
• rare native
Perennial herb 
2021 Cynthia Powell
2021 Cynthia Powell
2021 John Game
|
|
Lilium pardalinum ssp. pardalinum Leopard lily
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Limnanthes douglasii ssp. douglasii Douglas' meadowfoam
native
Annual herb 
2019 Woody Elliott
2019 Zoya Akulova
2019 Hunter Breck
|
|
Limnanthes douglasii ssp. nivea Snow white meadowfoam
native
Annual herb 
2018 Evan Johnson
2019 Cynthia Powell
2019 Cynthia Powell
|
|
Limnanthes douglasii ssp. rosea Rosy douglas' meadowfoam
native
Annual herb 
2020 David popp
2020 Matt Berger
2021 Alaine Arslan
|
|
Limonium californicum California sealavender, Marsh rosemary, Sea lavender
native
Perennial herb 
2018 Saskia Raether
2010 Jorg Fleige & Mimi Fleige
2017 MCOSD EDRR
|
|
Limosella acaulis Broad leaved mudwort, Owyhee mudwort, Southern mudwort
native
Annual herb 
2020 Steve Matson
2020 Steve Matson
2021 R.A. Chasey
|
|
Limosella aquatica Northern mudwort, Water mudwort
native
Annual herb (aquatic) 
2020 Bob Sweatt
2020 Bob Sweatt
2005 Steve Matson
|
|
Linanthus dichotomus ssp. dichotomus Evening snow
native
Annual herb 
2019 Jacob Smith
2008 Steve Matson
2021 Mike Russler
|
|
Linanthus dichotomus ssp. meridianus Evening snow
native
Annual herb 
2021 Charles Russell
2021 Charles Russell
2020 Ken Hickman
|
|
Linum lewisii Blue flax, Lewis' flax, Prairie flax
native
Perennial herb 
2019 David Greenberger
2020 stephen rosenthal
2023 Mike Russler
|
|
Lithophragma bolanderi Bolander's woodland star, Hillstar, Sierra star
native
Perennial herb 
2009 Bob Case
2019 David popp
2015 BOB CASE
|
|
Lithophragma cymbalaria Mission star, Mission woodland star
native
Perennial herb 
2020 Bryant Baker
2020 David Greenberger
2020 Bryant Baker
|
|
Lithophragma parviflorum var. parviflorum Pink woodland star, Smallflower woodland star
native
Perennial herb  2008 Steve Matson
|
|
Lomatium californicum California lomatium, Celery weed
native
Perennial herb 
2022 Richard Sullivan
2021 Julie A. Kierstead
2020 R.A. Chasey
|
|
Lomatium caruifolium var. caruifolium Alkali desertparsley, Caraway leaved lomatium
native
Perennial herb 
2014 Steve Matson
2022 Dianne Lake
2014 Steve Matson
|
|
Lomatium nudicaule Barestem biscuitroot, Pestle lomatium, Pestle parsnip
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2022 Helen Hancock
|
|
Lonicera involucrata var. ledebourii Coast twinberry, Twinberry honeysuckle
native
Shrub 
2014 James Gonsman
2022 Suzanne L. Weakley
2010 Toni Corelli
|
|
Lonicera subspicata var. denudata Chaparral honeysuckle, Johnston's honeysuckle, Santa barbara honeysuckle
native
Shrub 
2019 Diane Etchison
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Ludwigia hexapetala Ludwigia, Six petal water primrose
• invasive non-native
Perennial herb 
2009 Keith Gagomiros
2021 Charles Russell
2019 Ron Vanderhoff
|
|
Ludwigia palustris Marsh purslane, Marsh seedbox
native
Perennial herb (aquatic) 
2019 Robin Carter
2019 David popp
2019 David popp
|
|
Ludwigia peploides ssp. peploides Floating primrose willow, Floating water primrose, Marsh purslane
native
Perennial herb 
2019 Patrick Furtado
2022 Donald Burk
2022 Donald Burk
|
|
Lupinus affinis Fleshy lupine
native
Annual herb 
2019 Alice Cummings
2023 John Rawlings
1992 Robert E. Preston, Ph.D.
|
|
Lupinus arboreus Coastal bush lupine, Yellow bush lupine
native
Shrub 
2019 Patrick Furtado
2014 Steve Matson
2020 Steve Matson
|
|
Lupinus benthamii Bentham lupine, Spider lupine
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Lupinus chamissonis Beach blue lupine, Chamisso bush lupine, Dune bush lupine
native
Shrub 
2020 Susan McDougall
2022 Mike Russler
2021 Cara Wilcox
|
|
Lupinus concinnus Bajada lupine, Elegant lupine, Scarlet lupine
native
Annual herb 
2022 Ron Vanderhoff
2019 Ron Vanderhoff
2017 B.J. Dion
|
|
native
Shrub 
2022 Suzanne L. Weakley
2015 James Gonsman
2022 Mary Sue Ittner
|
|
Lupinus luteolus Butter lupine, Pale yellow lupine
native
Annual herb 
2019 Paul Aigner
2022 J Tunney
2019 Paul Aigner
|
|
Lupinus pachylobus Big pod lupine, Fatpod lupine, Mt. diablo lupine
native
Annual herb 
2024 Mike Russler
2018 Michael Mitchell
2020 Julie A. Kierstead
|
|
Lycopus americanus American water horehound, Bugleweed
native
Perennial herb 
2021 Donald Burk
2021 Sara Sweet
2021 Sara Sweet
|
|
Lycopus asper Rough bugleweed
native
Perennial herb 
2012 Robert L. Carr
2012 Robert L. Carr
2012 Robert L. Carr
|
|
Lysimachia latifolia Pacific starflower
native
Perennial herb 
2008 Steve Matson
2016 Steve Matson
2008 Steve Matson
|
|
Lysimachia maritima Sea milkwort
native
Perennial herb 
2007 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lysimachia minima Chaffweed
native
Annual herb 
2020 Ron Vanderhoff
2018 Hayley Ross
2020 Ron Vanderhoff
|
|
Lythrum californicum California loosestrife, Common loosestrife
native
Perennial herb 
2017 Fred Melgert / Carla Hoegen
2020 Ron Vanderhoff
2017 David Wolfson
|
|
Madia anomala Plump seeded madia, Plumpseeded madia, Tarweed
native
Annual herb 
2022 Shannon W
1995 Saint Mary's College of California
1995 Saint Mary's College of California
|
|
Madia elegans Common madia
native
Annual herb 
2021 Jamie Spielmann
2021 Mike Russler
2020 Diane Etchison
|
|
Madia radiata Golden madia, Showy madia
• rare native
Annual herb 
2023 Jacob Smith
2016 George Butterworth
2016 George Butterworth
|
|
Malacothamnus hallii Eastern bewildering bushmallow
native
Shrub 
2022 R.A. Chasey
2022 R.A. Chasey
2017 Keir Morse
|
|
Malacothamnus fremontii Unfurled bushmallow
native
Shrub 
2019 Keir Morse
2017 Keir Morse
2022 Ryan O'Dell
|
|
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
2022 Mike Russler
2023 R.A. Chasey
|
|
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
|
|
Marah oregana Coast man-root
native
Perennial herb, Vine 
2020 Susan McDougall
2017 James Gonsman
2016 Steve Matson
|
|
Matricaria occidentalis Valley mayweed
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Meconella californica California fairypoppy, California meconella
native
Annual herb 
2021 Karen Swift
2016 Bob Case
2017 David Greenberger
|
|
Meconella oregana White fairypoppy
• rare native
Annual herb 
2022 R.A. Chasey
2022 R.A. Chasey
2021 R.A. Chasey
|
|
Melica californica California melicgrass
native
Perennial grass 
2023 John Rawlings
2021 John Rawlings
2022 John Rawlings
|
|
Mentha arvensis American wild mint, Field mint, Marsh mint
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2014 Steve Matson
|
|
Mentzelia affinis Yellow blazing star, Yellow comet, Yellowcomet
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2020 David Greenberger
|
|
Mentzelia dispersa Bushy blazingstar, Nada stickleaf, Scattered blazing star
native
Annual herb 
2022 Bob Sweatt
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Mentzelia laevicaulis Blazing star, Giant blazingstar, Smooth stem blazing star
native
Perennial herb 
2023 Mary Ann Machi
2015 Brad Singer
2023 Mary Ann Machi
|
|
Mentzelia lindleyi Lindley's blazing star, Lindley's blazingstar
native
Annual herb 
2020 Karen Swift
2021 Vivian Krug Cotton
2020 Joerg Lohse
|
|
Mentzelia micrantha Chaparral blazing star, San Luis blazingstar, San Luis stick leaf
native
Annual herb 
2019 Ron Vanderhoff
2023 Keir Morse
2019 Hailey Laskey
|
|
Mentzelia pectinata San joaquin blazing star, San joaquin blazingstar
native
Annual herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Micropus amphibolus Mount diablo cottonseed, Mt. diablo cottonweed
• rare native
Annual herb 
2023 R.A. Chasey
2022 R.A. Chasey
2017 Tim Hyland
|
|
Micropus californicus var. subvestitus Hairy slender cottonweed, Q tips
native
Annual herb 
2023 Keir Morse
2023 Keir Morse
2023 Keir Morse
|
|
Microseris acuminata Needle microseris, Sierra foothill silverpuffs, Sierra foothills microseris
native
Annual herb 
2018 Julie Kierstead Nelson
2024 David popp
2024 David popp
|
|
Microseris bigelovii Coast microseris, Coastal silverpuffs
native
Annual herb 
2023 Leslie Flint
2022 R.A. Chasey
2011 Toni Corelli
|
|
Microseris campestris San joaquin microseris, San joaquin silverpuffs
native
Annual herb 
2022 Cynthia Powell
2022 Cynthia Powell
2022 Dianne Lake
|
|
Microseris douglasii ssp. tenella Douglas' silverpuffs, Short scaled microseris
native
Annual herb 
2022 Helen Hancock
2019 Diane Renshaw
2022 Helen Hancock
|
|
Microseris sylvatica Sylvan scorzonella
• rare native
Perennial herb 
2020 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Mimetanthe pilosa Snouted monkey flower
native
Annual herb 
2017 Steve Matson
2019 Matt Berger
2017 Steve Matson
|
|
Mirabilis laevis var. crassifolia California four o'clock
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Moehringia macrophylla Large leaved sandwort, Largeleaf sandwort
native
Perennial herb 
2019 Glenn Fine
2018 Matt Berger
2016 Mary Merriman
|
|
Monardella breweri ssp. breweri Brewer's monardella
native
Annual herb 
2012 Terrence Gosliner
2019 Manzanita Dictionary
|
|
Monardella douglasii Douglas' monardella
native
Annual herb 
2019 David Greenberger
2022 Mojgan Mahdizadeh
2023 Ryan O'Dell
|
|
Monardella sheltonii Coyote mint, Shelton's coyote mint, Shelton's monardella
native
Perennial herb 
2021 Dana York
2021 Dana York
2021 Dana York
|
|
Monolepis nuttalliana Nuttall's poverty weed, Nuttall's povertyweed
native
Annual herb 
2020 Matt Berger
2020 Matt Berger
2017 Michelle Tollett
|
|
Monolopia gracilens Woodland monolopia
• rare native
Annual herb 
2015 Al Keuter
2023 R.A. Chasey
2019 Ken Hickman
|
|
Monolopia lanceolata Common monolopia
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Monolopia major Cupped monolopia
native
Annual herb 
2019 Susan McDougall
2019 Susan McDougall
2022 Ryan O'Dell
|
|
Montia fontana Annual water minerslettuce, Water chickweed, Water montia
native
Annual herb 
2023 Alaine Arslan
2023 Alaine Arslan
2006 Steve Matson
|
|
Montia linearis Linear leaved montia, Narrow leaved water chickweed, Narrowleaf minerslettuce
native
Annual herb 
2003 Steve Matson
2003 Steve Matson
2015 David popp
|
|
Morella californica California wax myrtle
native
Tree, Shrub 
2019 Michelle Karle
2020 Kim Cabera
2020 Susan McDougall
|
|
Muilla maritima Common muilla, Sea muilla
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Myosurus minimus Common mouse tail, Little mouse tail, Tiny mousetail
native
Annual herb 
2022 Dianne Lake
2024 Cynthia Powell
2024 Kevin Dixon
|
|
Myosurus minimus ssp. apus Little mouse tail
• rare native
Annual herb 
2017 Tania Asef
2021 Kipp Pow
2021 Kipp Pow
|
|
Myosurus sessilis Tiny mouse tail, Vernal pool mousetail
native
Annual herb 
2015 Julia King
2003 George W. Hartwell
2013 Zoya Akulova
|
|
Myriopteris covillei Coville's lip fern
native
Fern 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Myriopteris gracillima Lace lip fern
native
Fern 
2021 John Rawlings
2021 R.A. Chasey
2021 Steve Matson
|
|
Myriopteris intertexta Coastal lip fern
native
Fern 
2018 Adam Chasey
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Navarretia atractyloides Holly leaf navarretia, Hollyleaf pincushionplant
native
Annual herb 
2019 Diane Etchison
2010 George Butterworth
2019 Ken Hickman
|
|
Navarretia cotulifolia Broad leaved navarretia, Cotulaleaf pincushionplant
• rare native
Annual herb 
2022 Hannah Aclufi
2023 R.A. Chasey
2023 R.A. Chasey
|
|
Navarretia gowenii Lime ridge navarretia
• rare native
Perennial herb 
2018 R.A. Chasey
2018 R.A. Chasey
2008 John Game
|
|
Navarretia hamata ssp. parviloba Hooked navarretia, Small lobe navarretia
native
Annual herb 
2022 R.A. Chasey
2017 R.A. Chasey
2021 Cara Wilcox
|
|
Navarretia heterandra Tehama navarretia, Tehama pincushionplant
• rare native
Annual herb 
2022 Scott Yarger
2022 Steve Laymon
2022 Steve Laymon
|
|
Navarretia intertexta Interwoven navarretia, Needle leaved navarretia, Needleleaf navarretia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Navarretia mellita Honeyscented pincushionplant, Skunk navarretia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Navarretia nigelliformis ssp. nigelliformis Adobe navarretia
• rare native
Annual herb 
2017 Douglas Gordon-Blackwood
2017 Douglas Gordon-Blackwood
2022 David popp
|
|
Navarretia nigelliformis ssp. radians Adobe navarretia, Shining navarretia
• rare native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Navarretia prostrata Prostrate navarretia, Prostrate pincushionplant
• rare native
Annual herb 
2017 Ron Vanderhoff
2017 Tania Asef
2023 Ron Vanderhoff
|
|
Navarretia pubescens Downy pincushionplant, Purple navarretia
native
Annual herb 
2009 Bob Case
2019 David Greenberger
2022 Helen Hancock
|
|
Navarretia tagetina Marigold navarretia, Marigold pincushionplant, Navarretia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Navarretia viscidula Sticky navarretia, Sticky pincushionplant
native
Annual herb 
2021 R.A. Chasey
2015 John Doyen
2015 John Doyen
|
|
Nemophila parviflora var. parviflora Small flowered nemophila, Smallflower nemophila, Woodland nemophila
native
Annual herb 
2019 John Rawlings
2021 Zoya Akulova-Barlow
2023 Dana York
|
|
Nemophila pedunculata Littlefoot nemophila, Meadow nemophila
native
Annual herb 
2003 Steve Matson
2020 Bob Sweatt
2024 Alaine Arslan
|
|
Nicotiana attenuata Coyote tobacco
native
Annual herb 
2009 Steve Matson
2009 Steve Matson
2020 Bob Sweatt
|
|
Nicotiana quadrivalvis Indian tobacco
native
Annual herb 
2019 Michael Mitchell
2019 Michael Mitchell
2016 Lesley Hunt
|
|
Nitrophila occidentalis Boraxweed, Western nitrophila
native
Perennial herb 
2016 Steve Matson
2020 Matt Berger
2016 Steve Matson
|
|
Nuttallanthus texanus Blue toadflax
native
Annual, Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Oenothera deltoides ssp. cognata Birdcage evening primrose, Desert lantern
native
Annual herb 
2019 Dee Shea Himes
2019 Alex Heyman
2022 Ryan O'Dell
|
|
Oenothera deltoides ssp. howellii Antioch dunes evening primrose
• rare native
Perennial herb 
2022 Marcus Tamura
2023 Susan Euing
2011 Zoya Akulova
|
|
Oenothera elata ssp. hookeri Common evening primrose, Evening primrose, Hooker's evening primrose
native
Perennial herb 
2020 Suzanne L. Weakley
2018 Suzanne L. Weakley
2018 Toni Corelli
|
|
Osmorhiza brachypoda California sweet cicely, California sweetcicely
native
Perennial herb 
2017 Aaron Echols
2020 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Oxalis oregana Redwood sorrel
native
Perennial herb 
2021 Caitlyn Allchin
2021 Steve Matson
2021 Steve Matson
|
|
Oxalis pilosa Hairy wood sorrel
native
Annual herb 
2022 R.A. Chasey
2009 Avis Boutell
2022 Cynthia Powell
|
|
Packera breweri Brewer's ragwort
native
Perennial herb 
2017 Patricia Ashe
2019 John Rawlings
2019 Angelique Herman
|
|
Panicum capillare Old witch grass, Witchgrass
native
Annual grass 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Papaver californicum Fire poppy, Western poppy
native
Annual herb 
2014 Ron Vanderhoff
2015 Ron Vanderhoff
2020 Bryant Baker
|
|
Parietaria hespera var. californica California pellitory
native
Annual herb 
2003 Keir Morse
2003 Keir Morse
2003 Keir Morse
|
|
Pectocarya penicillata Sleeping combseed, Winged comb seed, Winged pectocarya
native
Annual herb 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2022 Steve Matson
|
|
Pediomelum californicum California indian breadroot
native
Perennial herb 
2022 Catherine Chang
2023 Helen Hancock
2019 David Greenberger
|
|
Pellaea mucronata var. mucronata Bird's foot fern
native
Fern 
2018 Rachelle Gray
2023 Helen Hancock
2023 Helen Hancock
|
|
Penstemon centranthifolius Scarlet bugler
native
Perennial herb 
2019 Ron Vanderhoff
2017 Diane Etchison
2021 Mike Russler
|
|
Penstemon heterophyllus var. heterophyllus Foothill penstemon
native
Perennial herb 
2018 Gary McDonald
2012 Gary McDonald
2019 David Greenberger
|
|
Penstemon heterophyllus var. purdyi Purdy's foothill penstemon
native
Perennial herb 
2019 David Greenberger
2020 Ken Hickman
2019 David Greenberger
|
|
Pentachaeta alsinoides Tiny pygmy daisy, Tiny pygmydaisy
native
Annual herb 
2021 Ken Hickman
2022 Ken Hickman
2023 David Gowen
|
|
Pentachaeta exilis ssp. exilis Meager pygmydaisy, Slender pentachaeta
native
Annual herb  1998 Dean Wm. Taylor
 2006 Laura Ann Eliassen
|
|
Perideridia californica California yampah
native
Perennial herb 
2018 Gary McDonald
2022 Helen Hancock
2013 Gary McDonald
|
|
Perideridia gairdneri ssp. gairdneri Gairdner's yampah
• rare native
Perennial herb 
2021 Mary Conway
2021 Larry Dizmang
2021 Scott Yarger
|
|
Persicaria hydropiperoides Water pepper
native
Perennial herb 
2017 Ron Vanderhoff
2021 Ken Hickman
2021 John Rawlings
|
|
Persicaria lapathifolia Common knotweed
native
Annual herb 
2020 Ron Vanderhoff
2017 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Persicaria punctata Dotted smartweed
native
Perennial herb 
2018 Ron Vanderhoff
2018 Ron Vanderhoff
2022 Helen Hancock
|
|
Petasites frigidus var. palmatus Arctic sweet coltsfoot, Western coltsfoot
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2019 Steve Conger
|
|
Petunia parviflora Wild petunia
native
Annual herb 
2017 Ron Vanderhoff
2020 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Phacelia breweri Brewer's phacelia
native
Annual herb 
2021 Helen Hancock
2022 Helen Hancock
2022 Helen Hancock
|
|
Phacelia ciliata Great valley phacelia
native
Annual herb 
2022 Ron Vanderhoff
2022 Mike Russler
2022 Catherine Chang
|
|
Phacelia divaricata Divaricate phacelia
native
Annual herb 
2022 Mike Russler
2019 Ken Hickman
2022 R.A. Chasey
|
|
Phacelia douglasii Douglas' phacelia
native
Annual herb 
2019 Michael Mitchell
2014 Michael Mitchell
2019 Michael Mitchell
|
|
Phacelia egena Kaweah river phacelia, Rock phacelia
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Phacelia malvifolia Stinging phacelia
native
Annual herb 
2018 Michael Mitchell
2022 Jennifer Mo
2013 Toni Corelli
|
|
Phacelia nemoralis var. nemoralis Woods phacelia
native
Perennial herb 
2020 Ken Hickman
2016 Glen Schneider
2021 Dianne Lake
|
|
Phacelia phacelioides Mt. Diablo phacelia
• rare native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Phacelia ramosissima Branching phacelia
native
Perennial herb 
2005 Steve Matson
2022 Rosalind Helfand
2020 Ron Vanderhoff
|
|
Phacelia rattanii Rattan's phacelia
native
Annual herb 
2022 Dee Shea Himes
2022 Dee Shea Himes
2020 Ken Hickman
|
|
Phacelia suaveolens Sweet scented phacelia, Sweetscented phacelia
native
Annual herb 
2019 Ken Hickman
2022 R.A. Chasey
2016 Cindy Roessler
|
|
Phacelia tanacetifolia Lacy phacelia, Tansy leafed phacelia
native
Annual herb 
2022 Mike Russler
2024 Bob Steele
2022 Charles Russell
|
|
Phalaris angusta Timothy canarygrass
native
Annual grass  2011 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Phalaris arundinacea Reed canarygrass
native
Perennial grass 
2018 Michelle Forys
2020 Donald Burk
2022 Dianne Lake
|
|
Phalaris californica California canarygrass, Canarygrass
native
Perennial grass 
2021 Dan Quinn
2017 Toni Corelli
2018 Brian Charles
|
|
Phalaris lemmonii Lemmon's canarygrass
native
Annual grass 
2017 James Bailey
2022 Donald Burk
2022 Steve Matson
|
|
Pholistoma auritum var. auritum Blue fiesta flower, Blue fiestaflower, Fiesta flower
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Phoradendron leucarpum ssp. macrophyllum Big leaf mistletoe
native
Shrub (parasitic) 
2021 Ron Vanderhoff
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Phragmites australis Common reed
native
Perennial grass 
2013 Ron Vanderhoff
2020 Ron Vanderhoff
2022 Steve Matson
|
|
Phyla lanceolata Lance leaf lippia, Lanceleaf fogfruit
native
Perennial herb 
2014 D Hufnagel
2021 Randy Huey
2015 Zoya Akulova
|
|
Phyla nodiflora Common lippia, Lippia, Turkey tangle frogfruit
native
Perennial herb 
2018 Ron Vanderhoff
2009 Ron Vanderhoff
2022 Donald Burk
|
|
Physocarpus capitatus Ninebark, Pacific ninebark, Western ninebark
native
Shrub 
2020 Helen Hancock
2018 Julian Geoghegan
2019 Julie Kierstead Nelson
|
|
Pickeringia montana var. montana Montana chaparral pea
native
Shrub 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Pilularia americana American pillwort
native
Fern 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2022 Matt Berger
|
|
Pinus attenuata Knobcone pine, Scrub pine
native
Tree 
2009 Ron Vanderhoff
2018 Hayley Ross
2019 Cynthia Powell
|
|
Pinus coulteri Big cone pine, Bull pine, Coulter pine
native
Tree 
2015 Michelle Cloud Hughes
2019 Bryant Baker
2020 Diane Etchison
|
|
Piperia elegans ssp. elegans Elegant piperia
native
Perennial herb 
2018 Saskia Raether
2022 Cynthia Powell
2017 Nicole Mercier
|
|
Piperia elongata Dense flowered rein orchid, Denseflower rein orchid
native
Perennial herb 
2021 Roy West
2007 Keir Morse
2007 Keir Morse
|
|
Piperia michaelii Michael's piperia, Michael's rein orchid
• rare native
Perennial herb 
2019 stephen rosenthal
2023 John Rawlings
2020 Ken Hickman
|
|
Piperia transversa Mountain piperia, Royal rein orchid, Flat Spurred Piperia
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2005 Keir Morse
|
|
Piperia unalascensis Alaska piperia, Alaska rein orchid, Rein orchid
native
Perennial herb 
2006 Steve Matson
2022 Steve Matson
2019 Ron Vanderhoff
|
|
Plagiobothrys acanthocarpus Adobe allocarya, Adobe popcornflower
native
Annual herb 
2017 Steve Matson
2017 Steve Matson
2024 Catherine Chang
|
|
Plagiobothrys canescens var. canescens Valley popcornflower
native
Annual herb 
2019 Diane Etchison
2015 Diane Etchison
2022 Catherine Chang
|
|
Plagiobothrys chorisianus var. chorisianus Artist's popcornflower, Choris's popcorn flower
• rare native
Annual herb 
2023 Doug Allshouse
2023 Doug Allshouse
2017 Toni Corelli
|
|
Plagiobothrys diffusus San francisco popcorn flower
• rare native
Annual herb 
2011 Peter Scott
2011 Steve Matson
2011 Peter Scott
|
|
Plagiobothrys fulvus var. campestris Common popcorn flower, Fulvous popcornflower, Tawny popcorn flower
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Plagiobothrys glaber Hairless popcorn flower, Hairless popcornflower
• rare native
Annual herb  2019 Dean Wm. Taylor
 2019 Dean Wm. Taylor
 2011 Steve Matson
|
|
Plagiobothrys humistratus Dwarf allocarya, Dwarf popcornflower
native
Annual herb 
2021 Charles Russell
2019 John Game
2024 Ellen Uhler
|
|
Plagiobothrys infectivus Dye popcorn flower, Dye popcornflower
native
Annual herb 
2023 Jacob Smith
2023 Jacob Smith
2023 Ryan O'Dell
|
|
Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower
native
Annual herb  2009 Doug Wirtz
 2009 Anna Bennett
 2004 Carol W. Witham
|
|
Plagiobothrys stipitatus var. stipitatus Stalked popcornflower, Vernal pool allocarya
native
Annual herb 
2021 Paul Watts
2021 Paul Watts
null
|
|
Plagiobothrys tenellus Pacific popcornflower, Popcorn flower, Slender popcorn flower
native
Annual herb 
2023 Larry Dizmang
2023 Larry Dizmang
2022 Mike Russler
|
|
Plagiobothrys trachycarpus Rough fruited allocarya, Roughfruit popcornflower
native
Annual herb 
2022 Catherine Chang
2022 Catherine Chang
2022 Catherine Chang
|
|
Plagiobothrys undulatus Coast allocarya
native
Annual herb 
2012 Terrence Gosliner
2024 Ron Vanderhoff
2006 Steve Matson
|
|
Plantago elongata Annual coast plantago, Coastal plantain, Long leaf plantain
native
Annual herb 
2017 Barbara Boethling
2019 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Plantago maritima Alkali plantain, Goose tongue, Maritime plantain
native
Perennial herb 
2018 Adam Chasey
2021 Jamie Spielmann
2020 Ken Hickman
|
|
Plantago subnuda Mexican plantain, Naked plantain, Tall coastal plantain
native
Perennial herb 
2019 Patrick Furtado
2022 Dianne Lake
2009 Toni Corelli
|
|
Platanthera dilatata var. leucostachys Sierra bog orchid, White Flowered Bog-Orchid
native
Perennial herb 
2022 Mike Russler
2014 Dee Warenycia
2019 Industrious Walkers of the World
|
|
Platanus racemosa California sycamore, Western sycamore
native
Tree 
2021 Ron Vanderhoff
2018 Ron Vanderhoff
2019 Rachelle Gray
|
|
Plectritis ciliosa Long spurred plectritis, Longspur seablush
native
Annual herb 
2022 Steve Matson
2005 Steve Matson
2022 Steve Matson
|
|
Plectritis congesta ssp. brachystemon Shortspur seablush
native
Annual herb 
2023 Catherine Chang
2005 Steve Matson
2018 Gail Johnson
|
|
Plectritis congesta ssp. congesta Sea blush
native
Annual herb 
2022 Jerry Murray
2010 Vernon Smith
2018 Vernon Smith
|
|
Pleuropogon californicus var. californicus Annual semaphoregrass
native
Perennial grass (rhizomatous) 
2023 Denise Defreese
2021 Denise Defreese
2021 R.A. Chasey
|
|
Pluchea odorata var. odorata Salt marsh fleabane
native
Annual, Perennial herb 
2011 Keir Morse
2011 Keir Morse
2019 Ron Vanderhoff
|
|
Poa douglasii Douglas bluegrass, Douglas' bluegrass, Maritime bluegrass
native
Perennial grass 
2011 Toni Corelli
2014 Alice Cumings
2011 Toni Corelli
|
|
Poa howellii Howell's blue grass, Howell's bluegrass
native
Annual grass 
2018 Ken Hickman
2020 Ken Hickman
2020 Ken Hickman
|
|
Pogogyne douglasii Douglas' mesamint, Douglas' pogogyne
native
Annual herb 
2022 Steve Matson
2016 Ray Gill
2022 Ramona Robison
|
|
Pogogyne zizyphoroides Sacramento mesamint, Sacramento mint, Sacramento pogogyne
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Charles Russell
|
|
Polemonium carneum Great polemonium, Royal jacob's ladder, Royal sky pilot
• rare native
Perennial herb 
2021 Amy Rachkowski
2000 Dianne Fristrom
2017 Steve Matson
|
|
Polypodium scouleri Leather fern, Leather leaf fern, Leathery polypody
native
Fern 
2018 Gregory Arena
2021 R.A. Chasey
2022 David Strauch
|
|
Polystichum californicum California sword fern, California swordfern
native
Fern 
2018 Diane Renshaw
2019 Hunter Breck
2015 John Malpas
|
|
Polystichum imbricans ssp. imbricans Narrowleaf swordfern, Rock sword fern
native
Fern 
2018 David popp
2014 Ron Vanderhoff
2016 Ron Vanderhoff
|
|
Populus trichocarpa Black cottonwood
native
Tree 
2019 Ron Vanderhoff
2012 Steve Matson
2012 Steve Matson
|
|
Potamogeton zosteriformis Eel grass pondweed, Flatstem pondweed
• rare native
Annual herb (aquatic) 
2009 Gerald Carr
2009 Gerald Carr
2009 Gerald Carr
|
|
Potentilla anserina ssp. pacifica Pacific potentilla, Silverweed
native
Perennial herb 
2022 R.A. Chasey
2021 Charles Russell
2022 R.A. Chasey
|
|
Primula clevelandii var. gracilis Padre's shooting star
native
Perennial herb 
2020 Mary Conway
2021 Mary Conway
2020 Mary Conway
|
|
Primula clevelandii var. patula Padre's shooting star
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Prosartes hookeri Drops of gold
native
Perennial herb 
2021 Norma Solarz
2021 Cara Wilcox
2019 Stacie Wolny
|
|
Prosartes smithii Largeflower fairybells
native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Prunella vulgaris var. lanceolata Lance leaf self heal, Mountain selfheal
native
Perennial herb 
2003 Steve Matson
2022 Zoya Akulova-Barlow
2022 Zoya Akulova-Barlow
|
|
Prunus emarginata Bitter cherry
native
Tree, Shrub 
2020 Belinda Lo
2004 Steve Matson
2006 Steve Matson
|
|
Prunus ilicifolia ssp. ilicifolia Holly leaf cherry, Hollyleaf cherry
native
Tree, Shrub 
2018 David Greenberger
2019 Ron Vanderhoff
2020 James Gonsman
|
|
Prunus subcordata Klamath plum, Sierra plum
native
Tree, Shrub 
2020 David Greenberger
Kevin Hintsa
2020 David Greenberger
|
|
Pseudognaphalium beneolens Cudweed
native
Perennial herb 
2021 BLM Redding Field Office
2021 Mike Russler
2021 R.A. Chasey
|
|
Pseudognaphalium biolettii Two-color rabbit-tobacco
native
Perennial herb 
2019 David Greenberger
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Pseudognaphalium microcephalum Wright's cudweed
native
Perennial herb 
2020 Ron Vanderhoff
2022 David Strauch
2019 Ron Vanderhoff
|
|
Psilocarphus brevissimus var. brevissimus Short woollyheads, Woolly heads, Woolly marbles
native
Annual herb 
2020 R.A. Chasey
2021 David popp
2020 Ron Vanderhoff
|
|
Psilocarphus brevissimus var. multiflorus Delta woolly marbles, Dwarf woollyheads
• rare native
Annual herb 
2018 David Greenberger
2019 Elliot Gunnison
|
|
Psilocarphus chilensis Round woolly marbles
native
Annual herb 
2020 Dick Rawson
2020 Dick Rawson
2024 Ellen Uhler
|
|
Psilocarphus oregonus Oregon woolly marbles, Oregon woollyheads, Woolly marbles
native
Annual herb 
2017 David Greenberger
2022 Dianne Lake
2022 Donald Burk
|
|
Ptelea crenulata California hoptree, Hop tree, Western hoptree
native
Tree, Shrub 
2022 BOB CASE
2021 Suzanne L. Weakley
2018 Bill Haley
|
|
Puccinellia nutkaensis Alaska alkali grass, Nootka alkaligrass
native
Perennial grass 
2020 John Rawlings
2019 Patrick Furtado
2019 Patrick Furtado
|
|
Puccinellia nuttalliana Nuttall's alkali grass, Nuttall's alkaligrass
native
Perennial grass 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Puccinellia simplex California alkaligrass
• rare native
Annual grass 
2019 John Rawlings
2019 John Rawlings
2022 Denise Defreese
|
|
Pyrrocoma racemosa var. racemosa Clustered goldenweed, Racemose pyrrocoma
native
Perennial herb  2018 Jake Ruygt
 2018 Jake Ruygt
|
|
Quercus agrifolia California live oak, Coast live oak
native
Tree 
2019 Patrick Furtado
2022 Andy Ford
2018 Marcyn Del Clements
|
|
Quercus berberidifolia Inland scrub oak
native
Tree 
2022 David Strauch
2020 Cynthia Keiser
2020 Cynthia Keiser
|
|
Quercus chrysolepis Canyon live oak, Canyon oak, maul oak, goldcup oak, Gold cup oak
native
Tree 
2017 Aaron Sunshine
2020 R.A. Chasey
2018 joaquin hale
|
|
Quercus durata var. durata Leather oak
native
Shrub 
2022 Hunter Breck
2020 Charles Russell
2020 R.A. Chasey
|
|
Quercus garryana Garry's oak, Oregon oak, garry oak, Oregon white oak
native
Tree 
2021 Isaac Kreger
2019 Susan McDougall
2023 Michele Hammond
|
|
Quercus garryana var. garryana Oregon oak, Oregon white oak
native
Tree 
2023 Michele Hammond
2021 R.A. Chasey
2021 R.A. Chasey
|
|
Quercus lobata California white oak, Valley oak
native
Tree 
2023 Helen Hancock
2021 Cynthia Powell
2023 Suzanne L. Weakley
|
|
Quercus palmeri Desert oak, Palmer's oak, Scrub oak
native
Shrub 
2022 Cynthia Powell
2019 R.A. Chasey
2022 Diane Renshaw
|
|
Quercus parvula var. shrevei Shreve oak, Shreve's oak
native
Tree 
2020 R.A. Chasey
2020 John Rawlings
2019 Cynthia Powell
|
|
Quercus wislizeni var. frutescens Bush interior live oak, Chaparral oak, Live oak
native
Tree, Shrub 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
native
Shrub, Tree 
2021 Robert Steers
2021 Robert Steers
2021 Robert Steers
|
|
native
Shrub, Tree 
2018 John Rawlings
2023 Jonas Katona
2023 Jonas Katona
|
|
Rafinesquia californica California chicory, California plumseed
native
Annual herb 
2019 David Greenberger
2021 Ron Vanderhoff
2017 Steve Matson
|
|
Ranunculus canus var. canus Hartweg's buttercup
native
Perennial herb 
2024 Dianne Lake
2023 Shane Hanofee
2023 Shane Hanofee
|
|
Ranunculus lobbii Buttercup, Lobb's aquatic buttercup, Lobb's buttercup
• rare native
Annual herb (aquatic) 
2023 David Greenberger
2024 Austin keene
2016 Amelia Ryan
|
|
Ranunculus occidentalis var. occidentalis Western buttercup
native
Perennial herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Ranunculus orthorhynchus var. bloomeri Bloomer's beaked buttercup, Bloomer's buttercup
native
Perennial herb 
2019 Ken Hickman
2019 Hunter Breck
2019 Ken Hickman
|
|
Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup, Straightbeak buttercup
native
Perennial herb  2008 Keir Morse
 2008 Keir Morse
 2008 Keir Morse
|
|
Rhamnus crocea Redberry buckthorn
native
Shrub 
2011 Michael Mitchell
2022 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Rhamnus ilicifolia Evergreen buckthorn, Hollyleaf redberry
native
Shrub 
2016 Steve Matson
2016 Steve Matson
2006 Steve Matson
|
|
Polygala californica California Milkwort
native
Perennial herb 
2020 Janice Kuch
2021 Larry Dizmang
2020 David Wolfson
|
|
Rhus aromatica Fragrant sumac, Skunk Bush
native
Shrub 
2018 Steve Matson
2018 Steve Matson
2018 Steve Matson
|
|
Ribes aureum var. gracillimum Golden currant
native
Shrub 
2019 Matt Berger
2022 Alexander S. Kunz
2020 Alice Cummings
|
|
Ribes divaricatum var. pubiflorum Spreading gooseberry, Straggly gooseberry
native
Shrub 
2021 Ken-ichi Ueda
2021 Ken-ichi Ueda
2021 Ken-ichi Ueda
|
|
Ribes malvaceum var. malvaceum Chaparral currant
native
Shrub 
2023 R.A. Chasey
2020 Ron Vanderhoff
2023 R.A. Chasey
|
|
Ribes quercetorum Foothill gooseberry, Oak gooseberry, Rock gooseberry
native
Shrub 
2020 Susan McDougall
2016 Steve Matson
2020 Susan McDougall
|
|
Ribes sanguineum var. glutinosum Blood currant, Flowering currant, Pink flowering currant
native
Shrub 
2020 Talila Golan
2018 John Rusk
2018 Hunter Breck
|
|
Ribes speciosum Fuchsia flowered gooseberry, Fuchsiaflower gooseberry
native
Shrub 
2022 David Chipping
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Rigiopappus leptocladus Rigiopappus, Wire weed, Wireweed
native
Annual herb 
2019 Ken Hickman
2021 Steve Laymon
2022 John Rawlings
|
|
Romanzoffia californica California romanzoffia
native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Rorippa curvisiliqua Curvepod yellow cress, Curvepod yellowcress, Western yellow cress
native
Annual, Perennial herb 
2020 Ron Vanderhoff
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Rorippa palustris ssp. palustris Bog yellowcress
native
Annual, Perennial herb 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Rosa nutkana ssp. nutkana Nootka rose
native
Shrub 
2021 Alison Gardner
2021 Alison Gardner
2014 Zoya Akulova
|
|
Rosa spithamea Ground rose, Sonoma rose
native
Shrub 
2021 David Gowen
1973 Geoff Burleigh
2020 David Krause
|
|
Rubus spectabilis Salmon berry, Salmonberry
native
Shrub 
2017 James Gonsman
2022 Zoya Akulova-Barlow
2016 Steve Matson
|
|
Rumex californicus California dock
native
Perennial herb 
2005 Steve Matson
2023 Ron Vanderhoff
2016 Cynthia Powell
|
|
Rumex crassus Willow leaved dock
native
Perennial herb 
2019 Patrick Furtado
2008 Toni Corelli
2021 Cynthia Powell
|
|
Rumex fueginus Golden dock
native
Annual, Perennial herb 
2022 Steve Ashcraft
2021 Donald Burk
2020 Ron Vanderhoff
|
|
Rumex occidentalis Western dock
native
Perennial herb 
2008 Toni Corelli
2009 Toni Corelli
2020 Ken Hickman
|
|
Rumex salicifolius Willow dock, Willow leaved dock
native
Perennial herb 
2023 Ron Vanderhoff
2012 Gary McDonald
2012 Gary McDonald
|
|
Rumex transitorius Willow dock
native
Perennial herb 
2009 Toni Corelli
2011 Toni Corelli
2008 Toni Corelli
|
|
Minuartia californica California Sandwort
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2021 David popp
|
|
Minuartia douglasii Douglas' Stitchwort
native
Annual herb 
2022 Steve Matson
2019 Stacie Wolny
2021 R.A. Chasey
|
|
Sagina decumbens ssp. occidentalis Western pearlwort
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Sagittaria latifolia Broad leaf arrowhead, Broadleaf arrowhead, Wappato
native
Perennial herb (aquatic)  2005 Louis-M. Landry
 2007 George W. Hartwell
 2005 Louis-M. Landry
|
|
Salix breweri Brewer's willow, Serpentine willow
native
Shrub 
2022 Ryan O'Dell
2021 R.A. Chasey
2024 R.A. Chasey
|
|
Salix gooddingii Goodding's black willow, Goodding's willow, Gooding's willow
native
Tree 
2020 Ron Vanderhoff
2021 Richard Spjut
2020 Ron Vanderhoff
|
|
Salix melanopsis Dusky willow
native
Tree, Shrub 
2014 Shawna Martinez
2017 Susan Kotelnicki
2021 Thomas Reyes
|
|
Salix scouleriana Nuttall willow, Scouler willow, Scouler's willow
native
Tree, Shrub 
2016 David popp
2022 John Rawlings
2012 Steve Matson
|
|
Salvia carduacea Thistle sage
native
Annual herb 
2016 Steve Matson
2016 Michael Mitchell
2016 Michael Mitchell
|
|
Salvia columbariae Chia sage
native
Annual herb 
2020 Ron Vanderhoff
2022 Mike Russler
2022 Mike Russler
|
|
Salvia spathacea Hummingbird sage
native
Perennial herb 
2020 David Wolfson
2020 Abby Nichols
2020 Bryant Baker
|
|
Sambucus racemosa var. racemosa Pacific red elderberry
native
Shrub 
2021 R.A. Chasey
2017 James Gonsman
2014 James Gonsman
|
|
Samolus parviflorus Water pimpernel
native
Perennial herb 
2023 Ron Vanderhoff
2022 Catherine Chang
2022 Catherine Chang
|
|
Sanicula arctopoides Footsteps of spring, Yellow mats
native
Perennial herb 
2019 Eliezer Margolis
2017 James Gonsman
2017 James Gonsman
|
|
Sanicula laciniata Coast sanicle, Coastal blacksnakeroot
native
Perennial herb 
2022 Diane Renshaw
2022 R.A. Chasey
2018 Ken Hickman
|
|
Sanicula maritima Adobe sanicle, Adobe snakeroot
• rare native
Perennial herb 
2019 David Wolfson
2021 Kristen Nelson
2021 Kristen Nelson
|
|
Sanicula saxatilis Devil's blacksnakeroot, Diablo sanicle, Rock sanicle
• rare native
Perennial herb 
2015 Ken Hickman
2021 R.A. Chasey
2023 R.A. Chasey
|
|
Sanicula tuberosa Tuberous sanicle, Turkey pea
native
Perennial herb 
2023 R.A. Chasey
2023 R.A. Chasey
2023 R.A. Chasey
|
|
Scirpus microcarpus Panicled bulrush, Small fruited bulrush
native
Perennial grasslike herb 
2022 Doug Allshouse
2008 Steve Matson
2013 Ron Vanderhoff
|
|
Scoliopus bigelovii California fetid adderstongue, Fetid adder's tongue, Slink pod
native
Perennial herb 
2024 William Blaker
2020 Timothy Boomer
2023 Mary Ann Machi
|
|
Scribneria bolanderi Scribner's grass, Scribneria
native
Annual grass 
2022 John Rawlings
2020 Ken Hickman
2023 R.A. Chasey
|
|
Scutellaria californica California skullcap
native
Perennial herb 
2016 Steve Matson
2020 Bob Sweatt
2022 Ken-ichi Ueda
|
|
Scutellaria galericulata Marsh skullcap
• rare native
Perennial herb (rhizomatous) 
2006 Steve Matson
2021 Scott Yarger
2006 Steve Matson
|
|
Scutellaria lateriflora Blue skullcap, Mad dog skullcap
• rare native
Perennial herb (rhizomatous)  2010 Louis-M. Landry
|
|
Scutellaria siphocampyloides Curve flowered skullcap, Gray leaved skullcap, Grayleaf skullcap
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Scutellaria tuberosa Danny's skullcap, Scullcap
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Sedella pentandra Mt. Hamilton mock stonecrop
native
Annual herb 
2019 David Greenberger
2017 Rebecca Schoenenberger
2019 Adam Chasey
|
|
Sedum radiatum Coast range stonecrop
native
Annual herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Sedum spathulifolium Broadleaf stonecrop, Pacific stonecrop, Stone crop
native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2023 R.A. Chasey
|
|
Selaginella bigelovii Bigelow's moss fern, Bigelow's spike moss, Bushy spikemoss
native
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2018 Ron Vanderhoff
|
|
Senecio aphanactis California groundsel, Chaparral ragwort, Rayless ragwort
• rare native
Annual herb 
2019 Matt Berger
2019 Matt Berger
2022 R.A. Chasey
|
|
Senecio aronicoides California butterweed, California groundsel, California rayless butterweed
native
Perennial herb 
2020 Helen Hancock
2008 Steve Matson
2020 Julie A. Kierstead
|
|
Senecio flaccidus var. douglasii Bush groundsel, Bush senecio, Douglas' groundsel
native
Shrub 
2018 Richard Spjut
2019 Ron Vanderhoff
2023 Helen Hancock
|
|
Senecio hydrophilus Alkali marsh ragwort, Water groundsel, Water ragwort
native
Perennial herb 
2022 Morgan Stickrod
2021 Cynthia Powell
2022 Mike Russler
|
|
Sequoia sempervirens Coast redwood
native
Tree 
2019 Patrick Furtado
2022 David Strauch
2019 R.A. Chasey
|
|
Sesuvium verrucosum Verrucose seapurslane, Western sea purslane
native
Perennial herb 
2019 Ron Vanderhoff
2020 R.A. Chasey
2018 Ron Vanderhoff
|
|
Setaria parviflora Marsh bristlegrass
native
Perennial grass 
2018 Ron Vanderhoff
2019 Ron Vanderhoff
2023 Donald Burk
|
|
Sidalcea diploscypha Fringed checker mallow, Fringed checkerbloom, Fringed sidalcea
native
Annual herb 
2022 William Lundgren
2016 Jennifer Wheeler
2021 Cynthia Powell
|
|
Sidalcea malviflora ssp. laciniata Dwarf checkerbloom, Laciniate checker mallow
native
Perennial herb (rhizomatous) 
2020 David Greenberger
2021 Maria Stokes
2021 Heather Brady DeQuincy
|
|
Sidalcea malviflora ssp. malviflora Checker mallow, Dwarf checkerbloom
native
Perennial herb (rhizomatous) 
2020 Mary Conway
2020 Diane Etchison
2020 Diane Etchison
|
|
Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene
native
Annual herb 
2019 Ken Hickman
2019 Ken Hickman
2023 Matt Berger
|
|
Silene laciniata ssp. californica California indian pink
native
Perennial herb 
2023 Alaine Arslan
2016 Sue Graue
2019 Sue Graue
|
|
Silene verecunda Dolores campion, San francisco campion
native
Perennial herb 
2022 Cynthia Powell
2022 Cynthia Powell
2022 Cynthia Powell
|
|
Sisyrinchium californicum California golden eyed grass, Golden blue eyed grass, Yellow eyed grass
native
Perennial herb 
2021 Suzanne L. Weakley
2019 Cynthia Powell
2021 Jamie Spielmann
|
|
Sium suave Hemlock water parsnip, Hemlock waterparsnip
native
Perennial herb 
2020 Bob Sweatt
2019 Bob Sweatt
2022 Bob Sweatt
|
|
Solanum xanti Chaparral nightshade, Nightshade, Purple nightshade
native
Perennial herb, Shrub 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Sparganium eurycarpum var. eurycarpum Broadfruit bur reed
native
Perennial herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Sparganium eurycarpum var. greenei Bur reed
native
Perennial herb 
2019 David Greenberger
2010 Louis-M. Landry
2008 Louis-M. Landry
|
|
Spartina foliosa California cord grass, California cordgrass, Pacific cordgrass
native
Perennial grass 
2019 Patrick Furtado
2017 MCOSD EDRR
2021 Jutta Burger
|
|
Spergularia macrotheca var. leucantha Sticky sandspurry, White sticky sand spurry
native
Perennial herb 
2016 BOB CASE
2016 BOB CASE
2011 Neal Kramer
|
|
Spergularia macrotheca var. longistyla Long styled sand spurrey, Sticky sandspurry
• rare native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Spergularia macrotheca var. macrotheca Sand spurrey, Sticky sand spurry, Sticky sandspurry
native
Perennial herb  2008 Steve Matson
|
|
Spiranthes porrifolia Creamy ladies tresses, Creamy ladies' tresses, Western ladies tresses
native
Perennial herb 
2020 Mary Ann Machi
2016 Steve Matson
2019 Julie Kierstead Nelson
|
|
Spiranthes romanzoffiana Hooded ladies tresses, Hooded ladies' tresses, Ladies' tresses
native
Perennial herb 
2018 Bill Haley
2003 Steve Matson
2003 Steve Matson
|
|
Sporobolus airoides Alkali sacaton
native
Perennial grass 
2022 Steve Matson
2022 Steve Matson
2009 Steve Matson
|
|
Stachys ajugoides Ajuga hedge nettle, Bugle hedgenettle, Hedge nettle
native
Perennial herb 
2021 Mike Russler
2014 James Gonsman
2023 Mike Russler
|
|
Stachys albens Cobwebby hedge nettle, White hedge nettle, Whitestem hedgenettle
native
Perennial herb 
2013 Steve Matson
2013 Steve Matson
2013 Steve Matson
|
|
Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle
native
Perennial herb 
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 elata Annual mitra, Santa barbara stephanomeria, Santa barbara wirelettuce
native
Annual herb 
2019 David Greenberger
2018 Julian Geoghegan
2021 Helen Hancock
|
|
Stephanomeria virgata ssp. pleurocarpa Tall stephanomeria, Wand stephanomeria, Wand wirelettuce
native
Annual herb 
2021 Helen Hancock
2021 Helen Hancock
2018 Richard Spjut
|
|
Stipa cernua Nodding needle grass
native
Perennial grass 
2018 Liz Block
2022 Ron Vanderhoff
2022 Dianne Lake
|
|
Stipa lemmonii var. lemmonii Lemmon's needle grass
native
Perennial grass 
2022 David Gowen
2021 David popp
2020 David Magney
|
|
Stipa lepida Foothill needle grass
native
Perennial grass 
2017 Gary McDonald
2023 Ron Vanderhoff
2017 Gary McDonald
|
|
Stipa pulchra Purple needle grass
native
Perennial grass 
2019 Michelle Karle
2008 Zoya Akulova
2019 Ron Vanderhoff
|
|
Streptanthus albidus ssp. peramoenus Most beautiful jewel flower, Most beautiful jewelflower
• rare native
Annual herb 
2024 Mike Russler
2024 Mike Russler
2024 Mike Russler
|
|
Streptanthus breweri Brewer's jewelflower
native
Annual herb 
2021 Charles Russell
2022 Ryan O'Dell
2022 Mike Russler
|
|
Streptanthus glandulosus ssp. glandulosus Bristly jewelflower
native
Annual herb 
2003 Keir Morse
2020 Stacie Wolny
2021 Bryant Baker
|
|
Streptanthus hispidus Mt. diablo jewel flower, Mt. diablo jewelflower
• rare native
Annual herb 
2005 Terry Gosliner
2018 Rebecca Schoenenberger
2018 Rebecca Schoenenberger
|
|
Stuckenia filiformis ssp. alpina Fineleaf pondweed
• rare native
Perennial herb 
2016 Robert L. Carr
2016 Robert L. Carr
2016 Robert L. Carr
|
|
Stylocline gnaphaloides Everlasting nest straw, Everlasting stylocline, Mountain neststraw
native
Annual herb 
2019 Diane Etchison
2021 Ron Vanderhoff
2021 Ron Vanderhoff
|
|
Suaeda californica California seablite
• rare native
Shrub 
2022 Cynthia Powell
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Suaeda nigra Bush seepweed
native
Perennial herb 
2017 Steve Matson
2016 Steve Matson
2017 Steve Matson
|
|
Symphyotrichum frondosum Short rayed alkali aster
native
Annual herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Symphyotrichum lanceolatum var. hesperium Western lance leaf aster
native
Perennial herb 
2012 Steve Matson
2012 Steve Matson
2012 Steve Matson
|
|
Symphyotrichum lentum Suisun marsh aster
• rare native
Perennial herb (rhizomatous) 
2021 John Game
2022 Morgan Stickrod
2022 Morgan Stickrod
|
|
Symphyotrichum subulatum var. parviflorum Eastern annual saltmarsh aster
native
Perennial herb 
2021 Ken Hickman
2021 Ron Vanderhoff
2019 Aaron Echols
|
|
Taraxia ovata Sun cup, Goldeneggs
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Tauschia hartwegii Hartweg's tauschia, Hartweg's umbrellawort, Tauschia
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Tellima grandiflora Bigflower tellima, Fringe cups
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2016 Steve Matson
|
|
Tetrapteron graciliflorum Hill sun cup
native
Annual herb 
2021 Charles Russell
2010 Richard Spjut
2016 Richard Spjut
|
|
Thermopsis californica var. californica California goldenbanner
native
Perennial herb (rhizomatous) 
2021 Mike Russler
2015 James Gonsman
2021 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
|
|
Thysanocarpus radians Fringe pod, Ribbed fringepod, Showy fringe pod
native
Annual herb 
2020 Julie A. Kierstead
2020 Matt Berger
2020 Matt Berger
|
|
native
Perennial herb 
2016 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Tonella tenella Lesser baby innocence, Small flowered tonella
native
Annual herb 
2021 Helen Hancock
2008 Steve Matson
2019 Belinda Lo
|
|
Torreyochloa pallida var. pauciflora Mannagrass, Pale false mannagrass, Weak mannagrass
native
Perennial grass (rhizomatous) 
2019 Matt Berger
2019 Matt Berger
2020 John Rawlings
|
|
Toxicoscordion paniculatum Foothill deathcamas
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2008 Steve Matson
|
|
Toxicoscordion venenosum var. venenosum Meadow deathcamas
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Trianthema portulacastrum Desert horsepurslane, Horse purslane, Lowland purslane
native
Annual herb 
2018 Dan Williams
2018 Dan Williams
2004 James M. Andre
|
|
Trifolium albopurpureum Indian clover, Rancheria clover
native
Annual herb 
2023 Mary Gerbic
2023 Mary Gerbic
2021 Mike Russler
|
|
Trifolium barbigerum Bearded clover
native
Annual herb 
2023 R.A. Chasey
2010 Toni Corelli
2017 Toni Corelli
|
|
Trifolium bifidum var. bifidum Pinole clover
native
Annual herb 
2020 Matt Berger
2020 Matt Berger
2020 Matt Berger
|
|
Trifolium olivaceum Olive clover
native
Annual herb 
2017 David popp
2021 Dianne Lake
2021 Dianne Lake
|
|
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 dichotomum Branched indian clover
native
Annual herb 
2023 Helen Hancock
2022 Helen Hancock
2023 Helen Hancock
|
|
Trifolium fucatum Bull clover, Sour clover
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2020 Paul Aigner
|
|
Trifolium grayi Gray's clover
native
Annual herb 
2023 Matt Berger
2007 Toni Corelli
2023 Matt Berger
|
|
Trifolium hydrophilum Saline clover
• rare native
Annual herb  2005 Dean Wm. Taylor
 2005 Aaron Schusteff
 2005 Aaron Schusteff
|
|
Trifolium macraei Chilean clover, Macrae's clover
native
Annual herb 
2009 Toni Corelli
2022 R.A. Chasey
2021 R.A. Chasey
|
|
Trifolium obtusiflorum Clammy clover, Creek clover
native
Annual herb 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Trifolium oliganthum Few flowered clover, Fewflower clover, Minitomcat clover
native
Annual herb 
2023 Helen Hancock
2022 Mary Merriman
2023 R.A. Chasey
|
|
Trifolium wormskioldii Coast clover, Cow clover, Cows clover
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Triglochin concinna var. concinna Arrow grass
native
Perennial herb (aquatic) 
2021 Ken-ichi Ueda
2021 Ken-ichi Ueda
2021 Ken-ichi Ueda
|
|
Triglochin maritima Arrowgrass, Seaside arrow grass, Seaside arrowgrass
native
Perennial herb (aquatic) 
2021 Cynthia Powell
2021 Cynthia Powell and Michele Hammond's nostril; smells a bit like bleach
2008 Steve Matson
|
|
Triglochin scilloides Flowering-quillwort
native
Annual herb (aquatic) 
2018 Carol Witham
2023 Ron Vanderhoff
2011 Hattie Brown
|
|
Triglochin striata Three ribbed arrow grass, Threerib arrowgrass
native
Perennial herb (aquatic) 
2022 Ken Hickman
2021 Jutta Burger
2021 John Game
|
|
Trillium ovatum ssp. ovatum Pacific trillium, Western wakerobin
native
Perennial herb 
2017 Steve Matson
2021 Terrence Willett
2021 Steve Matson
|
|
Triodanis biflora Venus looking glass, Venus' looking glass
native
Annual herb 
2020 Ken Hickman
2015 Hayley Ross
2018 Ken Hickman
|
|
Triphysaria versicolor ssp. faucibarbata Yellow owl's clover, Yellowbeak owl's clover
native
Annual herb 
2021 Helen Hancock
2021 Mike Russler
2019 Suzanne L. Weakley
|
|
Trisetum canescens Nodding oatgrass, Nodding trisetum, Tall trisetum
native
Perennial grass 
2020 John Rawlings
2011 Steve Matson
2022 Ellen Uhler
|
|
Triteleia peduncularis Long ray brodiaea, Long rayed brodiaea, Marsh triteleia
native
Perennial herb 
2021 Suzanne L. Weakley
2020 John Game
2021 Suzanne L. Weakley
|
|
Tropidocarpum capparideum Caper fruited tropidocarpum, Caperfruit tropidocarpum
• rare native
Annual herb  2002 Dieter Wilken
 2004 Laura Ann Eliassen
|
|
Tropidocarpum gracile Dobie pod, Slender keel fruit, Slender tropidocarpum
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Turritis glabra Tower rockcress
native
Perennial herb 
2021 David Wolfson
2021 Mike Russler
2020 Chico Hiking Association
|
|
Vaccinium ovatum California huckleberry, Evergreen huckleberry
native
Shrub 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Vancouveria planipetala Inside out flower, Redwood insideout flower, Redwood ivy
native
Perennial herb 
2021 Cara Wilcox
2021 Cara Wilcox
2023 R.A. Chasey
|
|
Verbena hastata Blue vervain, Swamp verbena
native
Perennial herb 
2021 Amber Bedgood
2020 Sara Sweet
2020 Sara Sweet
|
|
Veronica americana American brooklime, American speedwell, Brooklime
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Viburnum ellipticum Common viburnum, Viburnum
• rare native
Shrub 
2021 R.A. Chasey
2021 R.A. Chasey
2020 Julie A. Kierstead
|
|
Vicia gigantea Giant vetch
native
Perennial herb 
2021 Dana York
2019 Cynthia Powell
2013 James Gonsman
|
|
Viola adunca ssp. adunca Blue violet, Western dog violet
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Viola douglasii Douglas' golden violet, Douglas' violet
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Viola glabella Pioneer violet, Stream violet, Stream Violet, Smooth Yellow Violet
native
Perennial herb 
2006 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Viola purpurea ssp. purpurea Goosefoot violet, Mountain Violet
native
Perennial herb 
2021 Jamie Spielmann
2021 Dana York
2017 Robert Barnard
|
|
Viola purpurea ssp. quercetorum Goosefoot violet, Goosefoot yellow violet
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Viola sempervirens Evergreen violet, Redwood violet
native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Viola sheltonii Shelton's violet
native
Perennial herb 
2006 Steve Matson
2019 Ron Vanderhoff
2021 Mike Russler
|
|
Wolffia brasiliensis Brazilian watermeal, South American water meal
• rare native
Perennial herb 
2022 Donald Burk
2022 Donald Burk
2022 David popp
|
|
Wyethia glabra Coast range mule ears, Shining mule ears, Smooth mule ears
native
Perennial herb 
2020 Julie A. Kierstead
2022 R.A. Chasey
2019 Colleen Herr
|
|
Yabea microcarpa California hedge parsley, False carrot
native
Annual herb 
2021 Helen Hancock
2022 R.A. Chasey
2012 Toni Corelli
|
|
Zeltnera davyi Davy's centaury
native
Annual herb 
2018 Mary Conway
2022 Irene Rosen
2023 R.A. Chasey
|
|
Zeltnera trichantha Alkali centaury
native
Annual herb 
2021 Charles Russell
2021 Charles Russell
2019 Paul Aigner
|
