Almaden Quicksilver Park
Almaden Quicksilver County Park Santa Clara County |
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| Olive Zappacosta / Santa Clara Valley CNPS (2001-05-07) |
| 483 PLANTS |
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Acer macrophyllum Big leaf maple, Bigleaf maple
native
Tree  2020 Diane Etchison
 2018 Ron Vanderhoff
 2018 Julie Kierstead Nelson
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Acer negundo var. californicum Boxelder
native
Tree  2019 Robert Sweet
 2016 John H Malpas
 2019 Ron Vanderhoff
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Achillea millefolium Common yarrow
native
Perennial herb  2022 Andy Ford
 2014 James Gonsman
 2023 Ron Vanderhoff
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Achyrachaena mollis Blow-Wives
native
Annual herb  2015 Diane Etchison
 2019 Deanna Wargowski
 2021 Cynthia Powell
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Adenostoma fasciculatum Chamise
native
Tree, Shrub  2014 Garth Wadsworth
 2021 Ron Vanderhoff
 2017 Angelique Herman
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Adiantum jordanii Adiantum, maiden hair fern
native
Fern  2022 BOB CASE
 2019 Ron Vanderhoff
 2019 Susan McDougall
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Aesculus californica Buckeye, California buckeye, California horse chestnut
native
Tree  2018 Joseph Belli
 2021 Cyril Guyot
 2011 Steve Matson
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Agoseris grandiflora Bigflower agoseris, California dandelion, Giant mountain dandelion
native
Perennial herb  2021 Amber Bedgood
 2021 Cynthia Powell
 2020 Diane Etchison
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Agoseris heterophylla Annual agoseris, Annual mountain dandelion
native
Annual herb  2020 Bob Sweatt
 2021 Lisa Berry
 2020 Bob Sweatt
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Agrostis exarata Spike bentgrass, Spike redtop
native
Perennial grass  2022 Teal Derrer
 2021 David popp
 2022 John Rawlings
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Agrostis hallii Hall redtop, Hall's bent grass, Hall's bentgrass
native
Perennial grass  2021 John Rawlings
 2021 John Rawlings
 2005 Steve Matson
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Agrostis semiverticillata Water beard grass
non-native
Perennial grass  2022 Ron Vanderhoff
 2021 Ron Vanderhoff
 2019 Friends of Five Creeks volunteers
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Ailanthus altissima Ailanthus, Tree of heaven
• invasive non-native
Tree  2022 Jenny Gossett
 2022 Jenny Gossett
 2020 Julie A. Kierstead
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Aira caryophyllea Shiver grass, Silver hairgrass, Silvery hairgrass
• invasive non-native
Annual grass  2019 Gary McDonald
 2005 Steve Matson
 2015 Chris Jaster
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Allium serra Jeweled onion
native
Perennial herb (bulb)  2022 Linnea vonAhn
 2019 Matt Berger
 2019 Matt Berger
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Allium unifolium One leaf onion, Oneleaf onion
native
Perennial herb (bulb)  2017 Hunter Breck
 2018 Glen Schneider
 2018 Ken Hickman
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Amaranthus albus Pigweed amaranth, Tumbleweed
non-native
Annual herb  2014 Steve Matson
 2014 Steve Matson
 2018 Ron Vanderhoff
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Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed
native
Annual herb  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2019 Camille Nowell
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Amaryllis belladonna Belladonna lily
non-native
Perennial herb  2016 Camille Nowell
 2020 Jacob Martin
 2022 Ron Vanderhoff
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Amsinckia menziesii var. intermedia Common fiddleneck
native
Annual herb  2020 Matt Berger
 2019 Ron Vanderhoff
 2021 David popp
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Amsinckia menziesii var. menziesii Menzies' fiddleneck, Small flowered fiddleneck
native
Annual herb  2020 Ron Vanderhoff
 2018 Gary McDonald
 2018 Gary McDonald
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Anagallis arvensis Scarlet pimpernel
non-native
Annual herb  2017 B.J. Dion
 2019 Barbara Boethling
 2022 Chris McDonald
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Anaphalis margaritacea Pearly everlasting
native
Perennial herb  2020 Bob Sweatt
 2021 Ken Lunders
 2014 James Gonsman
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Anthemis arvensis Corn chamomile
non-native
Annual herb  2008 Keir Morse
 2016 Richard Spellenberg
 2008 Keir Morse
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Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile
• invasive non-native
Annual herb  2017 Diane Etchison
 2019 Nathan Taxel
 2019 Dave Beller
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Anthriscus caucalis Bur chervil
non-native
Annual herb, Vine  2017 Diane Etchison
 2013 Toni Corelli
 2020 Jennifer Mo
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Antirrhinum kelloggii Climbing snapdragon, Kellogg's snapdragon, Lax snapdragon
native
Annual herb  2020 Ron Vanderhoff
 2019 David Greenberger
 2019 Ron Vanderhoff
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Antirrhinum vexillo-calyculatum Wiry snapdragon
native
Annual herb  2020 Stacie Wolny
 2017 Michelle Bosch
 2020 Stacie Wolny
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Aphanes occidentalis Western lady's mantle
native
Annual, Perennial herb  2019 Ron Vanderhoff
 2017 Ron Vanderhoff
 2020 R.A. Chasey
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Aquilegia eximia Serpentine columbine, Sticky columbine, Van Houtte's columbine
native
Perennial herb  2018 Stacie Wolny
 2010 Tony Morosco
 2020 Paul Aigner
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Arabis glabra Tower rockcress
native
Perennial herb  2021 David Wolfson
 2021 Mike Russler
 2020 Chico Hiking Association
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Arbutus menziesii Madrono, Pacific madrone
native
Tree  2021 Cynthia Powell
 2021 R.A. Chasey
 2021 Hunter Breck
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Arctostaphylos glauca Big berry manzanita, Bigberry manzanita
native
Tree, Shrub  2020 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
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Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush
native
Shrub  2018 James Gonsman
 2022 Julia Markey
 2020 Ron Vanderhoff
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Artemisia douglasiana California mugwort, Douglas' sagewort
native
Perennial herb  2013 Brent Morgan
 2022 Ron Vanderhoff
 2021 Mike Russler
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Asclepias fascicularis Narrow leaf milkweed
native
Perennial herb  2018 Ron Vanderhoff
 2014 Steve Matson
 2019 Ron Vanderhoff
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Aster chilensis California aster, Pacific aster
native
Perennial herb  2020 Suzanne L. Weakley
 2013 Arcangelo Wessells
 2018 Stacie Wolny
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Aster radulinus Roughleaf aster
native
Perennial herb  2022 Suzanne L. Weakley
 2022 Bob Sweatt
 2022 Bob Sweatt
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Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed
native
Annual herb  2020 Ron Vanderhoff
 2019 Ron Vanderhoff
 2022 Mike Russler
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Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus
native
Annual herb  2021 Paul Aigner
 2008 Steve Matson
 2022 Catherine Chang
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Avena barbata Slender oat, Slim oat
• invasive non-native
Annual grass  2018 Julian Geoghegan
 2023 David popp
 2019 Ron Vanderhoff
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Avena fatua Wild oat, Wildoat
• invasive non-native
Annual grass  2018 Gary McDonald
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
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Avena sativa Common oats, Cultivated oats, Wild oat
non-native
Annual, Perennial grass  2016 Cynthia Powell
 2021 John Rawlings
 2006 Louis-M. Landry
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Baccharis pilularis Coyote brush, Dwarf chaparral broom
native
Shrub  2022 Ryan O'Dell
 2021 Ron Vanderhoff: Staminate and pistillate plants in flower.
 2018 Cynthia Powell
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Baccharis viminea Mule fat., seep willow, Mule's fat, Mulefat
native
Shrub  2023 Julia Markey
 2018 Ron Vanderhoff
 2020 Aaron Echols
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Barbarea orthoceras American rocket, American wintercress, Erectpod wintercress
native
Perennial herb  2015 James Gonsman
 2019 Diane Etchison
 2020 Diane Etchison
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Bellis perennis English daisy, English lawn daisy
• invasive non-native
Perennial herb  2020 Bob Sweatt
 2020 Bob Sweatt
 2020 Bob Sweatt
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Berberis aquifolium Mountain grape, Mountaingrape, Oregon grape
native
Shrub  2022 Cara Wilcox
 2021 Mike Russler
 2021 Mike Russler
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Bowlesia incana Hoary bowlesia
native
Annual herb  2019 Diane Renshaw
 2019 Diane Renshaw
 2017 Gary McDonald
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Brachypodium distachyon False brome, Purple false brome
• invasive non-native
Annual, Perennial grass  2019 Ron Vanderhoff
 2021 John Rawlings
 2019 Ron Vanderhoff
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Brassica juncea Brown mustard, India mustard
non-native
Annual herb  2022 Vernon Smith
 2020 Zoya Akulova
 2021 Zoya Akulova
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Brassica nigra Black mustard
• invasive non-native
Annual herb  2020 Diane Etchison
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Briza minor Little quaking grass, Little quakinggrass, Little rattlesnake grass
non-native
Annual grass  2022 Alice Cummings
 2019 Gary McDonald
 2019 Gary McDonald
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Brodiaea coronaria ssp. coronaria Crown brodiaea, Early harvest brodiaea, Harvest brodiaea
native
Perennial herb (bulb)  2021 Dee Shea Himes
 2020 Jeff Bisbee
 2021 Robin Carter
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Brodiaea elegans ssp. elegans Harvest brodiaea
native
Perennial herb  2016 Steve Matson
 2016 Steve Matson
 2015 Julie A. Kierstead
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Bromus carinatus California brome
native
Perennial grass  2020 Ron Vanderhoff
 2021 Neal Kramer
 2023 Carolyn Harper
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Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass
• invasive non-native
Annual grass  2022 Ron Vanderhoff
 2021 Richard Spjut
 2022 Ron Vanderhoff
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Bromus hordeaceus Soft brome, Soft chess
• invasive non-native
Annual grass  2023 Ron Vanderhoff
 2018 Gary McDonald
 2018 Gary McDonald
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Bromus laevipes Chinook brome, Narrow flowered brome, Woodland brome
native
Perennial grass  2020 Alice Cummings
 2019 Kimberly Moses
 2018 Ken Hickman
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Bromus madritensis ssp. rubens Red brome
• invasive non-native
Annual grass  2015 Chris Jaster
 2015 jamie smith
 2018 Gary McDonald
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Bromus trinii Chilean chess
non-native
Annual grass  2023 John Rawlings
 2006 Steve Matson
 2006 Steve Matson
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Calandrinia ciliata red maids, Calandrinia
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Calochortus albus White fairy lantern, White globe lily
native
Perennial herb  2019 David Greenberger
 2019 Cynthia Powell
 2009 Bob Case
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Calochortus luteus Yellow mariposa lily
native
Perennial herb  2014 Steve Matson
 2016 Melissa Mooney
 2023 Ryan O'Dell
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Calochortus venustus Butterfly mariposa lily
native
Perennial herb  2019 Randy Huey
 Geoff Burleigh
 2012 Zack Abbey
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Calystegia purpurata ssp. purpurata Pacific false bindweed, Purple western morning glory, Smooth western morning glory
native
Perennial herb  2021 Cara Wilcox
 2014 James Gonsman
 2020 Robert Steers
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Calystegia subacaulis Hill morning glory, Hillside false bindweed, Stemless morning glory
native
Perennial herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2021 Wynter Nardi
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Camissonia graciliflora Hill sun cup
native
Annual herb  2021 Charles Russell
 2009 Keir Morse
 2010 Richard Spjut
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Capsella bursa-pastoris Shepherd's purse
non-native
Annual herb  2008 Steve Matson
 2019 Cynthia Powell
 2022 Doug Allshouse
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Cardamine californica California toothwort, milkmaids
native
Perennial herb  2020 Barbara Peck
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Cardamine oligosperma Bitter cress, Idaho bittercress
native
Annual, Perennial herb  2008 Steve Matson
 2013 Emily Wong
 2013 Ron Wolf
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Cardaria draba Whitetop
• invasive non-native
Perennial herb  2020 Ron Vanderhoff
 2021 Mike Russler
 2020 Ron Vanderhoff
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Carduus pycnocephalus Italian thistle
• invasive non-native
Annual herb  2019 Gary McDonald
 2008 Zoya Akulova
 2017 Gary McDonald
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Carex serratodens Bifid sedge, Two tooth sedge
native
Perennial grasslike herb  2019 Steve Matson
 2019 Steve Matson
 2021 Cynthia Powell
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Carex tumulicola Foothill sedge, Slender sedge, Split awn sedge
native
Perennial grasslike herb  2017 David Greenberger
 2021 John Rawlings
 2021 John Rawlings
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Carthamus baeticus Smooth distaff thistle
non-native
Annual herb  2016 Amanda Mills
 2020 Angelique Herman
 2020 Angelique Herman
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Carthamus lanatus Woolly distaff thistle
• invasive non-native
Annual herb  2019 Lenihan Mazur
 2019 Danielle Carney
 2019 Danielle Carney
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Castilleja affinis Indian paintbrush
native
Perennial herb  2019 Aleksandra Evert
 2019 Diane Etchison
 2019 Diane Etchison
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Castilleja attenuata Narrow leaved owl's clover, Valley tassels
native
Annual herb  2009 BOB CASE
 2023 R.A. Chasey
 2022 Mike Russler
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Castilleja densiflora Dense flower owl's clover, Denseflower indian paintbrush
native
Annual herb  2023 Caitlin Kreutz
 2019 David Greenberger
 2016 Andrew Longman
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Castilleja foliolosa Texas paintbrush, Woolly indian paintbrush
native
Perennial herb  2019 Ron Vanderhoff
 2019 Diane Etchison
 2019 Diane Etchison
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Castilleja subinclusa ssp. franciscana Franciscan paintbrush, Longleaf indian paintbrush
native
Perennial herb  2020 Hunter Breck
 2014 James Gonsman
 2014 James Gonsman
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Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush
native
Shrub  2022 Ryan O'Dell
 2021 Steve Matson
 2019 Cara Wilcox
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Ceanothus papillosus var. papillosus warty-leaf ceanothus, Wartleaf ceanothus
native
Shrub  2022 Justin Luong
 2019 Susan McDougall
 2021 Mary Conway
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Centaurea calcitrapa Purple star thistle, Red star thistle
• invasive non-native
Annual, Perennial herb  2021 R.A. Chasey
 2019 MCOSD EDRR
 2022 R.A. Chasey
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Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote
• invasive non-native
Annual herb  2019 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 Laura Anna Arellano
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Centaurea solstitialis Barnaby's thistle, Yellow star thistle
• invasive non-native
Annual herb  2022 Cynthia Powell
 2019 Arlee Montalvo
 2022 Mary Herr
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Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed
non-native
Annual herb  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2007 Carol W. Witham
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Cercocarpus betuloides Birch leaf mountain mahogany, Mountain mahogany
native
Tree, Shrub  2020 Rebecca Schoenenberger
 2020 Aaron Echols
 2016 Cindy Roessler
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Chamomilla suaveolens Pineapple weed
native
Annual herb  2008 Steve Matson
 2019 Diane Etchison
 2018 Stacie Wolny
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Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot
non-native
Annual herb  2022 Ron Vanderhoff
 2014 Toni Corelli
 2022 Ron Vanderhoff
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Chenopodium californicum California goosefoot, Pigweed, Soaproot
native
Perennial herb  2023 Mike Russler
 2023 Mike Russler
 2023 Mike Russler
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Chlorogalum pomeridianum Amole, Soap plant, Soaproot
native
Perennial herb  2019 Patrick Furtado
 2020 Robert Katz
 2019 Diane Etchison
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Cirsium occidentale var. venustum Cobwebby thistle, Red thistle, Venus thistle
native
Perennial herb  2020 Stacie Wolny
 2010 James M. Andre
 2020 Sara Timby
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Cirsium vulgare Bull thistle
• invasive non-native
Perennial herb  2017 James Bailey
 2019 Gustavo Vasquez
 2020 Bob Sweatt
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Clarkia amoena Farewell to spring
native
Annual herb  2018 Anna Sereno
 2019 Steve Conger
 2011 Barry Breckling
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Clarkia purpurea Purple clarkia, Winecup clarkia
native
Annual herb  2022 Ron Vanderhoff
 2019 Stacie Wolny
 2021 Mary Conway
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Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia
native
Annual herb  2014 Steve Matson
 2019 Joe Engelbrecht
 2021 R.A. Chasey
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Clarkia purpurea ssp. viminea Large godetia, Purple clarkia, Winecup clarkia
native
Annual herb  2020 Steve Laymon
 2020 Steve Laymon
 2020 Steve Laymon
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Clarkia rubicunda Farewell to spring, Reddened clarkia, Ruby chalice clarkia
native
Annual herb  2019 Stacie Wolny
 2021 John Game
 2019 Stacie Wolny
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Clarkia unguiculata Elegant clarkia, Mountain garland, Woodland clarkia
native
Annual herb  2019 David Greenberger
 2021 Mike Russler
 2022 Suzanne L. Weakley
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Claytonia exigua ssp. exigua Little spring beauty, Serpentine springbeauty, Viridis
native
Annual herb  2021 Zoya Akulova-Barlow
 2022 Mike Russler
 2003 James B. Gratiot
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Claytonia gypsophiloides Gypsum spring beauty, Gypsum springbeauty
native
Annual herb  2021 Miao Ling He
 2019 William Lundgren
 2023 R.A. Chasey
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Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb  2008 Steve Matson
 2008 Steve Matson
 2008 Steve Matson
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Clematis lasiantha Chaparral clematis, Pipestem
native
Perennial herb, Vine  2016 Julie Watson
 2016 Julie Ann Watson
 2018 Steve Matson
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Collinsia heterophylla Purple chinese houses
native
Annual herb  2022 Mary Ann Machi
 2019 David Greenberger
 2019 Ron Vanderhoff
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Collinsia multicolor San Francisco blue eyed mary, San Francisco collinsia
• rare native
Annual herb  2022 Janell Hillman
 2019 Ken Hickman
 2018 Barry Thomson
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Collinsia sparsiflora var. collina Hillside collinsia
native
Annual herb  2021 Helen Hancock
 2022 Mike Russler
 2022 Mike Russler
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Conium maculatum Poison hemlock
• invasive non-native
Perennial herb  2019 James Bailey
 2013 Toni Corelli
 2016 Cynthia Powell
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Corallorhiza striata Hooded coralroot, Striped coral root
native
Perennial herb  2021 Mary Ann Machi
 2022 Steve Conger
 2019 Timothy Boomer
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Cordylanthus pilosus Hairy bird's beak
native
Annual herb  2017 Jill Beckett
 2016 Margaret Flaherty
 2020 Paul Aigner
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Cordylanthus rigidus Rigid bird's beak, Stiffbranch bird's beak
native
Annual herb  2021 Ron Vanderhoff
 2021 Patrick Furtado
 2009 Keir Morse
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Cornus glabrata Brown dogwood
native
Tree, Shrub  2021 Donald Burk
 2020 Susan McDougall
 2019 Richard Spjut
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Cortaderia selloana Uruguayan pampas grass
• invasive non-native
Perennial grass  2023 Donald Burk
 2023 Randall English
 2022 Ron Vanderhoff
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Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed
native
Annual herb  2020 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
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Crepis capillaris Hawksbeard, Smooth hawk's beard, Smooth hawksbeard
non-native
Annual, Perennial herb  2003 Steve Matson
 2003 Steve Matson
 2019 Randy Huey
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Crepis vesicaria ssp. taraxacifolia Beaked hawksbeard, Weedy hawksbeard
non-native
Annual, Perennial herb  2011 Toni Corelli
 2011 Toni Corelli
 2010 Toni Corelli
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Crypsis schoenoides Swamp grass, Swamp picklegrass, Swamp pricklegrass
non-native
Annual grass  2017 Ron Vanderhoff
 2021 Cynthia Powell
 2018 Ron Vanderhoff
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Cryptantha flaccida Beaked cryptantha, Flaccid cryptantha, Weakstem cryptantha
native
Annual herb  2018 Alice Cummings
 2016 Steve Matson
 2016 Steve Matson
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Cryptantha muricata Pointed cryptantha, Prickly cryptantha, Prickly popcorn flower
native
Annual herb  2016 Chris Leslie
 2016 Chris Leslie
 2019 Marisa Persaud
|
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Cupressus sempervirens Italian cypress
non-native
Tree  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2016 Zoya Akulova
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Cynoglossum grande Hound's tongue, Western houndstongue, Adelinia
native
Perennial herb  2019 Eliezer Margolis
 2021 Dee Shea Himes
 2022 David Strauch
|
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Cynosurus echinatus Annual dogtail, Bristly dogstail grass, Dogtail grass
• invasive non-native
Annual grass  2017 Gary McDonald
 2010 Julie A. Kierstead
 2022 Ron Vanderhoff
|
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Cyperus eragrostis Tall cyperus, Tall flatsedge
native
Perennial grasslike herb  2016 Joan Hampton
 2021 Ken Lunders
 2014 James Gonsman
|
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Datura stramonium Jimson weed, Jimsonweed
non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2020 Ron Vanderhoff
|
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Datura stramonium var. tatula Jimson weed, Jimsonweed
non-native
Annual herb 2011 Steve Matson
2011 Steve Matson
2020 Ron Vanderhoff
|
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Daucus pusillus American wild carrot, Rattlesnake weed
native
Annual herb  2019 Diane Etchison
 2022 David Wolfson
 2021 Ken Lunders
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Delphinium patens Spreading larkspur, Zigzag larkspur
native
Perennial herb  2018 James Gonsman
 2012 Gary McDonald
 2020 Amy Rapport
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Deschampsia elongata Hairgrass, Slender hairgrass
native
Perennial grass  2021 John Rawlings
 2021 John Rawlings
 2009 Adonis (Don) Tate
|
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Desmazeria rigida Ferngrass, Hard bluegrass
non-native
Annual grass  2020 Jennifer Mo
 2018 Ron Vanderhoff
 2017 Neal Kramer
|
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Dichelostemma capitatum Blue dicks
native
Perennial herb  2021 Sue Graue
 2020 Bryant Baker
 2020 Cheryl Ballantyne
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Dichelostemma congestum Fork toothed ookow, Ookow
native
Perennial herb  2017 Gary Morgret
 2019 Suzanne L. Weakley
 2023 Teal Derrer
|
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Dipsacus sativus Fuller's teasel, Indian teasel
• invasive non-native
Annual, Biennial herb  2019 Danielle Carney
 2022 Jennifer Mo
 2022 David Strauch
|
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Disporum hookeri Drops of gold
native
Perennial herb  2019 Stacie Wolny
 2020 Ken Lunders
 2019 Stacie Wolny
|
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Dodecatheon clevelandii ssp. sanctarum Padre's shooting star
native
Perennial herb  2019 Mary Conway
 2009 Keir Morse
 2009 Keir Morse
|
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Dodecatheon hendersonii Mosquito bill
native
Perennial herb  2020 BLM Redding Field Office
 2017 John Game
 2022 Jamie Spielmann
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Dryopteris arguta California wood fern, Coastal wood fern, Shield fern
native
Fern  2018 James Gonsman
 2019 Rebecca Crowe
 2023 Julia Markey
|
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Dudleya cymosa ssp. cymosa Canyon dudleya, Canyon liveforever
native
Perennial herb  2020 R.A. Chasey
 2014 James Gonsman
 2019 Chico Hiking Association
|
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Dudleya setchellii Santa clara valley dudleya
• rare native
Perennial herb  2019 Paul Hankamp
 2008 Verna Jigour
 2008 Verna Jigour
|
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Eleocharis acicularis Needle spike rush, Needle spikerush
native
Perennial grasslike herb  2022 Ken-ichi Ueda
 2021 Ron Vanderhoff
 2019 Julia King
|
|
Elymus glaucus Blue wildrye
native
Perennial grass  2020 Denise Defreese
 2019 Patrick Furtado
 2018 Cynthia Powell
|
|
Elymus glaucus ssp. jepsonii Blue wild rye, Blue wildrye, Western rye grass
native
Perennial grass  2014 Toni Corelli
 2021 Arlee Montalvo
 2022 Ron Vanderhoff
|
|
Elymus multisetus Big squirreltail grass
native
Perennial grass  2019 David popp
 2019 Ron Vanderhoff
 2021 Denise Defreese
|
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Emmenanthe penduliflora Whispering bells, Whisperingbells
native
Annual herb  2016 Steven M Norris
 2021 Aaron Echols
 2018 Ron Vanderhoff
|
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Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb
native
Annual herb  2015 Ron Vanderhoff
 2019 Ramona Robison
 2020 Ron Vanderhoff
|
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Epilobium canum California fuchsia, Hummingbird trumpet, zauschneria
native
Perennial herb  2018 Ron Vanderhoff
 2015 Gerald Carr
 2019 Rebecca Schoenenberger
|
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Epilobium densiflorum Dense boisduvalia, Dense flowered boisduvalia, Dense flowered spike primrose
native
Annual herb  2009 BOB CASE
 2021 Mike Russler
 2022 Ken-ichi Ueda
|
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Epilobium minutum Chaparral willowherb, Desert willow herb, Little willowherb
native
Annual herb  2017 Michael Mitchell
 2021 R.A. Chasey
 2009 Keir Morse
|
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Eremocarpus setigerus Turkey-mullein
native
Annual herb  2018 Rachelle Gray
 2011 Steve Matson
 2011 Steve Matson
|
|
Eriodictyon californicum California yerba santa, Yerba santa
native
Shrub  2023 Suzanne L. Weakley
 2022 BOB CASE
 2020 Julie A. Kierstead
|
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Eriogonum luteolum var. luteolum Golden buckwheat, Goldencarpet buckwheat
native
Annual herb  2021 Charles Russell
 2021 Charles Russell
 2011 Steve Matson
|
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Eriogonum nudum Naked buckwheat, Nude buckwheat
native
Shrub  2020 Stacie Wolny
 2020 Stacie Wolny
 2020 Stacie Wolny
|
|
Eriophyllum confertiflorum Golden yarrow, Yellow yarrow
native
Shrub  2019 Stacie Wolny
 2019 Diane Etchison
 2022 Mojgan Mahdizadeh
|
|
Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree
non-native
Annual herb  2014 Bryan Derr
 2017 Gary McDonald
 2015 Ken Lunders
|
|
Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill
• invasive non-native
Annual herb  2022 Steve Matson
 2020 Julia Markey
 2022 Steve Matson
|
|
Erodium moschatum Musky stork's bill, White stemmed filaree, Whitestem filaree
• invasive non-native
Annual herb  2016 Steve Matson
 2016 James Bailey
 2018 Stacie Wolny
|
|
Eryngium aristulatum California eryngo, Jepson's button celery
native
Perennial herb  2012 Keir Morse
 2023 Caitlin Kreutz
 2012 Keir Morse
|
|
Eschscholzia californica California poppy
native
Annual, Perennial herb  2019 Dee Shea Himes
 2021 Ron Vanderhoff
 2019 Amy Rapport
|
|
Eucalyptus globulus Blue gum, Tasmanian bluegum
• invasive non-native
Tree  2020 Jennifer Mo
 2022 Ryan O'Dell
 2021 Cynthia Powell
|
|
Euphorbia spathulata Reticulate seeded spurge, Warty spurge
native
Annual herb  2021 R.A. Chasey
 2014 Steve Matson
 2014 Steve Matson
|
|
Euthamia occidentalis Western flat topped goldenrod, Western goldenrod, Western goldentop
native
Perennial herb  2021 Steve Matson
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Festuca californica California fescue
native
Perennial grass  2019 Justin Luong
 2022 Justin Luong
 2012 Aaron Arthur
|
|
Filago californica California cottonrose
native
Annual herb  2019 Steve Matson
 2019 Steve Matson
 2019 Matt Berger
|
|
Filago gallica Narrowleaf cottonrose
non-native
Annual herb  2015 jamie smith
 2013 Keir Morse
 2017 Barbara Boethling
|
|
Fritillaria affinis Checker lily, Mission bells
native
Perennial herb (bulb)  2017 Steve Matson
 2008 Steve Matson
 2020 Karen Swift
|
|
Fritillaria liliacea Fragrant fritillary
• rare native
Perennial herb (bulb)  2023 Ken-ichi Ueda
 2017 Steve Matson
 2017 Steve Matson
|
|
Galium andrewsii Needlemat galium, Phlox leaved bedstraw, Phloxleaf bedstraw
native
Perennial herb  2022 Mike Russler
 2019 Marisa Persaud
 2022 Mike Russler
|
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb  2020 Ron Vanderhoff
 2005 Steve Matson
 2020 Ron Vanderhoff
|
|
Galium murale Tiny bedstraw, Yellow wall bedstraw
non-native
Annual herb  2022 R.A. Chasey
 2021 Cameron Chabre
 2014 Bryan Derr
|
|
Galium porrigens var. porrigens Climbing bedstraw, Graceful bedstraw, Oval leaved bedstraw
native
Vine, Shrub  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
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
|
|
Gastridium ventricosum Nit grass
non-native
Annual grass  2020 Ron Vanderhoff
 2020 Ron Vanderhoff
 2021 Paul Aigner
|
|
Genista monspessulana French broom
• invasive non-native
Shrub  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium
• invasive non-native
Annual herb  2021 Al Keuter
 2023 Ron Vanderhoff
 2014 Bryan Derr
|
|
Geranium molle Crane's bill geranium, Dove's foot geranium, Dovefoot geranium
• invasive non-native
Annual, Perennial herb  2008 Steve Matson
 2008 Steve Matson
 2022 Elizabeth Harreschou
|
|
Gilia achilleifolia California gilia
native
Annual herb  2022 R.A. Chasey
 2022 Helen Hancock
 2018 Jason Matthias Mills
|
|
Gilia achilleifolia ssp. multicaulis Many stemmed california gilia, Many stemmed gilia
native
Annual herb  2023 R.A. Chasey
 2022 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Gilia tricolor Bird's eye gilia, Bird's eyes, Tricolor gilia
native
Annual herb  2020 Amy Rapport
 2022 Steve Matson
 2016 Richard Chasey
|
|
Gnaphalium californicum Ladies' tobacco
native
Annual, Perennial herb  2019 Gary McDonald
 2020 Steven M Norris
 2021 Ron Vanderhoff
|
|
Gnaphalium luteo-album Jersey cudweed
non-native
Annual herb  2011 Toni Corelli
 2019 Diane Etchison
 2021 Ron Vanderhoff
|
|
Gnaphalium purpureum Featherweed
native
Perennial herb  2019 Gary McDonald
 2021 Zoya Akulova-Barlow
 2019 Gary McDonald
|
|
Gnaphalium stramineum Cottonbatting plant
native
Perennial herb  2020 Ryan Carle
 2017 Diane Etchison
 2011 Toni Corelli
|
|
Grindelia camporum Common gumplant, Great valley gumweed, Gum plant
native
Perennial herb  2023 R.A. Chasey
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
Guillenia lasiophylla California mustard
native
Annual herb  2023 Steve Matson
 2019 Paul Aigner
 2020 Matt Berger
|
|
Hainardia cylindrica Barbgrass, Monerma, Thin tail
non-native
Annual grass  2022 Denise Defreese
 2009 Neal Kramer
 2009 Neal Kramer
|
|
Helenium puberulum Rosilla, Sneezeweed
native
Perennial herb  2019 Patrick Furtado
 2013 Toni Corelli
 2015 Stephen Rosenthal
|
|
Helianthella castanea Mt. diablo helianthella
• rare native
Perennial herb  2022 Michael L. Uhler
 2019 Adam Chasey
 2019 David Greenberger
|
|
Heliotropium curassavicum Chinese parsley, Heliotrope, Salt heliotrope
native
Perennial herb  2019 Aaron Echols
 2021 Mary Wloch
 2019 Wyatt Dooley
|
|
Hemizonia congesta ssp. luzulifolia Hayfield tarweed, Woodrush tarweed
native
Annual herb  2013 Arcangelo Wessells
 2022 R.A. Chasey
 2022 R.A. Chasey
|
|
Hemizonia fitchii Spikeweed
native
Annual herb  2015 Steve Matson
 2019 Julie Kierstead Nelson
 2021 Mike Russler
|
|
Hemizonia luzulifolia ssp. rudis Hayfield tarweed, Woodrush tarweed
native
Annual herb 2013 Arcangelo Wessells
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Hemizonia pungens ssp. pungens Common tarweed
native
Annual herb  2022 Cynthia Powell
 2021 Mike Russler
 2022 Cynthia Powell
|
|
Heracleum lanatum Common cow parsnip
native
Perennial herb  2019 Bob Sweatt
 2008 Neal Kramer
 2021 Julie A. Kierstead
|
|
Hesperevax sparsiflora Erect dwarf cudweed, Erect evax, Few flowered evax
native
Annual herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2022 R.A. Chasey
|
|
Hesperocnide tenella Western nettle, Western stinging nettle, Western stingingnettle
native
Annual herb  2019 David Greenberger
 2023 Ken-ichi Ueda
 2020 Ken Hickman
|
|
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
|
|
Heteromeles arbutifolia Christmas berry, Toyon
native
Shrub  2015 James Gonsman
 2017 Gary McDonald
 2017 Gary McDonald
|
|
Heterotheca sessiliflora var. echioides Bristly goldenaster, Sessileflower false goldenaster
native
Perennial herb  2021 Mike Russler
 2021 Mike Russler
 2018 Ron Vanderhoff
|
|
Hirschfeldia incana Mediterranean hoary mustard, Short podded mustard, Summer mustard
• invasive non-native
Perennial herb  2017 Gary McDonald
 2017 Gary McDonald
 2022 Ron Vanderhoff
|
|
Hoita macrostachya California hemp, Large leather root
native
Perennial herb  2021 Jamie Spielmann
 2009 Lynn Watson
 2021 Jamie Spielmann
|
|
Hoita strobilina Loma prieta psoralea
• rare native
Perennial herb  2020 Stacie Wolny
 2004 Janell Hillman
 2022 John Holback
|
|
Holodiscus discolor Cream bush, Ocean spray, Oceanspray
native
Shrub  2019 Bob Sweatt
 2020 Camille Nowell
 2023 Doug Zimmerman
|
|
Hordeum brachyantherum Meadow barley
native
Perennial grass  2021 Cynthia Powell
 2015 Steve Matson
 2021 John Rawlings
|
|
Hordeum brachyantherum ssp. californicum California barley, California meadow barley
native
Perennial grass 2021 Cynthia Powell
 2023 John Rawlings
 2021 John Rawlings
|
|
Hordeum marinum ssp. gussoneanum Barley, Mediterranean barley
non-native
Annual grass  2018 Carolyn
 2020 Paul Aigner
 2017 Toni Corelli
|
|
Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley
non-native
Annual grass  2022 Ron Vanderhoff
 2021 Al Keuter
 2021 Ron Vanderhoff
|
|
Hordeum vulgare Common barley
non-native
Annual grass  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2022 Ron Vanderhoff
|
|
Horkelia californica ssp. frondosa California horkelia
native
Perennial herb  2022 Mark Gary
 2016 John Doyen
 2016 John Doyen
|
|
Hypochaeris glabra Smooth cat's ear
• invasive non-native
Annual herb  2020 Ron Vanderhoff
 2017 Gary McDonald
 2019 Ron Vanderhoff
|
|
Hypochaeris radicata Hairy cats ear, Hairy catsear, Rough cat's ear
• invasive non-native
Perennial herb  2011 Michael Mitchell
 2017 Gary McDonald
 2016 Michael Mitchell
|
|
Iris douglasiana Douglas iris, Douglas' iris
native
Perennial herb  2020 Susan McDougall
 2019 Patrick Furtado
 2022 Suzanne L. Weakley
|
|
Iris macrosiphon Bowltube iris, Ground iris, Long tubed iris
native
Perennial herb  2017 Steve Matson
 2018 James Gonsman
 2019 Gabe Cashman
|
|
Juncus bufonius Common toad rush, Toad rush
native
Annual grasslike herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2004 James M. Andre
|
|
Juncus effusus var. pacificus Pacific rush
native
Perennial grasslike herb  2009 Toni Corelli
 2021 R.A. Chasey
 2021 John Rawlings
|
|
Juncus patens Common rush, Spreading rush
native
Perennial grasslike herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2008 Neal Kramer
|
|
Juncus xiphioides Iris leaved rush, Irisleaf rush
native
Perennial grasslike herb  2016 Erik Larsen
 2017 Ron Vanderhoff
 2023 R.A. Chasey
|
|
Koeleria macrantha June grass, Prairie junegrass
native
Perennial grass  2020 Matt Berry
 2015 Steve Matson
 2015 Steve Matson
|
|
Lactuca saligna Narrow leaved wild lettuce, Willow lettuce, Willowleaf lettuce
non-native
Annual herb  2021 Don Hollander
 2019 Stacie Wolny
 2021 Don Hollander
|
|
Lactuca serriola Prickly lettuce, Prickly wild lettuce
• invasive non-native
Annual herb  2017 Gary McDonald
 2020 Mark Kircher
 2009 Neal Kramer
|
|
Lactuca virosa Bitter lettuce, Poison wild lettuce
non-native
Perennial herb  2019 Randy Huey
 2022 R.A. Chasey
 2010 Cynthia Powell
|
|
Lagophylla ramosissima Branched lagophylla, Common hareleaf
native
Annual herb  2019 Diane Etchison
 2021 Dee Shea Himes
 2020 Ken Hickman
|
|
Lamarckia aurea Goldentop grass
non-native
Annual grass  2017 B.J. Dion
 2019 Ron Vanderhoff
 2015 James Gonsman
|
|
Lamium amplexicaule Giraffe head, Henbit deadnettle
non-native
Annual herb  2005 Steve Matson
 2005 Steve Matson
 2021 Mike Russler
|
|
Lasthenia californica California goldfields, Common goldfields, Valley goldfields
native
Annual herb  2017 David Greenberger
 2020 Susan White
 2017 MCOSD EDRR
|
|
Lasthenia maritima Maritime goldfields, Seaside goldfields
native
Annual herb  2015 Richard Chasey
 2013 Robert Steers/NPS
 2013 Robert Steers/NPS
|
|
Lathyrus latifolius Everlasting pea, Perennial pea, Perennial sweet pea
non-native
Perennial herb  2020 Jutta Burger
 2019 Cynthia Powell
 2021 Sherry Adams
|
|
Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea
native
Perennial herb  2018 Ron Vanderhoff
 2022 Charles Russell
 2015 Chris Jaster
|
|
Layia gaillardioides Woodland layia, Woodland tidytips
native
Annual herb  2022 John Rawlings
 2019 John Rawlings
 2022 Ryan O'Dell
|
|
Lepechinia calycina White pitcher sage, Woodbalm, pitcher sage
native
Shrub  2019 Stacie Wolny
 2020 Amy Rapport
 2020 Mary Conway
|
|
Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed
native
Annual herb  2020 Linda Pardy
 2019 Gary McDonald
 2016 Steve Matson
|
|
Lepidium strictum Peppergrass, Prostrate pepper grass, Upright pepperweed
native
Annual herb  2020 Julie A. Kierstead
 2008 Keir Morse
 2011 Zoya Akulova
|
|
Lessingia micradenia var. glabrata Smooth lessingia
• rare native
Annual herb  2019 Ken Hickman
 2020 R.A. Chasey
 2020 R.A. Chasey
|
|
Leymus triticoides Beardless wild rye
native
Perennial grass  2018 Ron Vanderhoff
 2021 Ron Vanderhoff
 2018 Rachelle Gray
|
|
Linanthus ambiguus Serpentine leptosiphon
• rare native
Annual herb  2019 David Greenberger
 2019 Paul Hankamp
 2018 Elinor Gates
|
|
Linanthus androsaceus False babystars
native
Annual herb  2010 Jeffrey Hapeman
 2020 R.A. Chasey
 2014 James Gonsman
|
|
Linanthus bicolor True babystars
native
Annual herb  2019 David Greenberger
 2008 Steve Matson
 2008 Steve Matson
|
|
Linanthus dichotomus Evening snow, Eveningsnow
native
Annual herb  2019 Jacob Smith
 2016 Ray Gill
 2019 Jacob Smith
|
|
Linanthus liniflorus Narrowflower flaxflower
native
Annual herb  2017 Aaron Echols
 2022 Charles Russell
 2009 Genevieve K. Walden
|
|
Linanthus parviflorus Variable linanthus
native
Annual herb  2008 Keir Morse
 2008 Keir Morse
 2008 Keir Morse
|
|
Linaria canadensis Canada toadflax
native
Annual, Biennial herb  2019 Mary Conway
 2019 Mary Conway
 2016 Keir Morse
|
|
Lithophragma affine Common woodland star, San francisco woodland star, Woodland star
native
Perennial herb  2017 Bonnie Nickel
 2022 Mike Russler
 2019 Diane Etchison
|
|
Lithophragma heterophyllum Hill star, Hillside woodland star
native
Perennial herb  2019 David Greenberger
 2019 David Magney
 2018 Ken Lunders
|
|
Lolium multiflorum Italian rye grass
• invasive non-native
Annual, Perennial grass  2019 Ron Vanderhoff
 2017 Gary McDonald
 2021 Ron Vanderhoff
|
|
Lomatium dasycarpum Hog fennel, Lace parsnip, Woolly fruited lomatium
native
Perennial herb  2020 R.A. Chasey
 2019 Diane Etchison
 2003 Michael Charters
|
|
Lomatium macrocarpum Bigseed biscuitroot, Large fruited lomatium
native
Perennial herb  2018 Gary McDonald
 2022 John Rawlings
 2013 Gary McDonald
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb  2006 Steve Matson
 2019 Eliezer Margolis
 2015 James Gonsman
|
|
Lonicera hispidula var. vacillans Pink honeysuckle
native
Vine, Shrub  2019 Stacie Wolny
 2019 Stacie Wolny
 2021 Bryant Baker
|
|
Lotus humistratus Short podded lotus
native
Annual herb  2005 Steve Matson
 2005 Steve Matson
 2018 Steve Matson
|
|
Lotus purshianus var. purshianus American bird's foot trefoil, Spanish lotus
native
Annual herb  2019 Ron Vanderhoff
 2019 Matt Berger
 2017 David Wolfson
|
|
Lotus scoparius Deerweed
native
Perennial herb  2021 Ron Vanderhoff
 2019 Diane Etchison
 2020 Bryant Baker
|
|
Lotus wrangelianus Chilean trefoil
native
Annual herb  2021 Jamie Spielmann
 2018 Gary McDonald
 2022 Richard Sullivan
|
|
Lupinus albifrons Silver bush lupine, Silver lupine
native
Shrub  2022 Mike Russler
 2022 Steve Conger
 2022 Ron Vanderhoff
|
|
Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine
native
Annual, Perennial herb  2022 Mike Russler
 2022 Mike Russler
 2019 Gary McDonald
|
|
Lupinus latifolius var. latifolius Broad leaf lupine
native
Perennial herb  2021 John Rawlings
 2020 Paul Aigner
 2009 Thomas Stoughton
|
|
Lupinus microcarpus var. densiflorus Chick lupine, Dense flowered platycarpos, Whitewhorl lupine
native
Annual herb  2014 Steve Matson
 2014 Steve Matson
 2014 Steve Matson
|
|
Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine
native
Annual herb  2018 Stacie Wolny
 2018 Stacie Wolny
 2018 Stacie Wolny
|
|
Luzula comosa Common wood rush, Hairy wood rush, Pacific woodrush
native
Perennial grasslike herb  2019 Matt Berger
 2022 Mike Russler
 2022 Mike Russler
|
|
Lythrum hyssopifolium Hyssop loosestrife
• invasive non-native
Annual, Perennial herb  2019 Diane Etchison
 2021 Cynthia Powell
 2020 Ron Vanderhoff
|
|
Madia elegans ssp. densifolia Common madia
native
Annual herb  2021 Jamie Spielmann
 2021 Mike Russler
 2020 Diane Etchison
|
|
Madia exigua Little tarweed, Meager tarweed, Small tarweed
native
Annual herb  2021 Helen Hancock
 2023 Ron Vanderhoff
 2021 Steve Laymon
|
|
Madia gracilis Grassy tarweed, Gumweed madia, Slender tarweed
native
Annual herb  2019 Ron Vanderhoff
 2021 Amber Bedgood
 2019 Ron Vanderhoff
|
|
Madia sativa Chile tarweed, Coast tarweed, Coastal tarweed
native
Annual herb  2013 Ron Vanderhoff
 2021 David Wolfson
 2021 Zoya Akulova-Barlow
|
|
Malacothamnus fasciculatus Chaparral bush mallow
native
Shrub  2020 Aaron Echols
 2020 Ron Vanderhoff
 2017 David Magney
|
|
Malva nicaeensis Bull mallow
non-native
Annual herb  2015 Mike Morales
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Malva parviflora Cheeseweed mallow
non-native
Annual herb  2022 Mike Russler
 2022 Donald Burk
 2022 Mike Russler
|
|
Marah fabaceus California man-root
native
Perennial herb, Vine  2018 Karen Scheuermann
 2021 Cyril Guyot
 2018 Gary McDonald
|
|
Marrubium vulgare White horehound
• invasive non-native
Perennial herb  ©2013 Gary McDonald
 2015 Diane Etchison
 2018 Nancy Hamlett
|
|
Medicago orbicularis Blackdisk medick, Buttonclover, Round leafed medick
non-native
Annual herb  2007 Luigi Rignanese
 2007 Luigi Rignanese
|
|
Medicago polymorpha Bur clover, Bur medic, California burclover
• invasive non-native
Annual herb  2019 Gary McDonald
 2019 Gary McDonald
 2019 Gary McDonald
|
|
Medicago polymorpha var. brevispina Bur clover, Bur medic, California burclover
• invasive non-native
Annual herb 2019 Gary McDonald
2019 Gary McDonald
2019 Gary McDonald
|
|
Melica californica California melicgrass
native
Perennial grass  2023 John Rawlings
 2021 John Rawlings
 2022 John Rawlings
|
|
Melica imperfecta California melic, Coast range melic, Small flowered melica
native
Perennial grass  2020 Ron Vanderhoff
 2021 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Melica torreyana Torrey melic, Torrey's melica, Torrey's melicgrass
native
Perennial grass  2021 Toni Corelli
 2019 John Rawlings
 2017 MCOSD Restoration Crew
|
|
Melilotus indica Annual yellow sweetclover, Sourclover
non-native
Annual herb  2019 Randy Huey
 2019 Randy Huey
 2017 Rosalie Benitez
|
|
Mentzelia lindleyi Lindley's blazing star, Lindley's blazingstar
native
Annual herb  2020 Karen Swift
 2021 Vivian Krug Cotton
 2020 Joerg Lohse
|
|
Micropus californicus var. californicus Q tips, Slender cottonweed
native
Annual herb  2006 Steve Matson
 2021 Ron Vanderhoff
 null
|
|
Microseris douglasii Douglas' microseris, Douglas' silverpuffs
native
Annual herb  2022 Debra Cook
 2022 Steve Laymon
 2021 Robert Steers
|
|
Mimulus aurantiacus Orange Bush Monkeyflower
native
Shrub  2023 Bill Kress
 2019 Stacie Wolny
 2019 Gary McDonald
|
|
Mimulus guttatus Seep monkey flower, Yellow monkey flower
native
Annual, Perennial herb (rhizomatous)  2019 Stacie Wolny
 2015 James Gonsman
 2019 Stacie Wolny
|
|
Minuartia douglasii Douglas' Stitchwort
native
Annual herb  2022 Steve Matson
 2019 Stacie Wolny
 2021 R.A. Chasey
|
|
Monardella douglasii Douglas' monardella
native
Annual herb  2019 David Greenberger
 2013 John Doyen
 2013 John Doyen
|
|
Monardella villosa Coyote mint
native
Perennial herb  2020 Mary Sue Ittner
 2019 Patrick Furtado
 2019 Patricia Ashe
|
|
Monardella villosa ssp. franciscana San francisco coyote mint
native
Perennial herb  2022 Suzanne L. Weakley
 2015 James Gonsman
 2022 Cynthia Powell
|
|
Monolopia gracilens Woodland monolopia
• rare native
Annual herb  2015 Al Keuter
 2023 R.A. Chasey
 2019 Ken Hickman
|
|
Monolopia major Cupped monolopia
native
Annual herb  2019 Susan McDougall
 2019 Susan McDougall
 2022 Ryan O'Dell
|
|
Nassella lepida Foothill needle grass
native
Perennial grass  2017 Gary McDonald
 2023 Ron Vanderhoff
 2017 Gary McDonald
|
|
Nassella pulchra Purple needle grass
native
Perennial grass  2019 Michelle Karle
 2019 Ron Vanderhoff
 2018 Gary McDonald
|
|
Navarretia atractyloides Holly leaf navarretia, Hollyleaf pincushionplant
native
Annual herb  2019 Diane Etchison
 2010 George Butterworth
 2019 Ken Hickman
|
|
Navarretia heterodoxa Calistoga navarretia, Calistoga pincushionplant
native
Annual herb  2018 Stacie Wolny
 2021 Larry Dizmang
 2021 Larry Dizmang
|
|
Navarretia squarrosa Skunkbush, Skunkweed
native
Annual herb  2019 Marisa Persaud
 2019 Patrick Furtado
 2013 Zoya Akulova
|
|
Nemophila heterophylla Canyon nemophila, Small baby blue eyes, Variable leaved nemophila
native
Annual herb  2022 Stephen Rosenthal
 2019 Talila Golan
 2019 Matt Berger
|
|
Nemophila menziesii Baby blue eyes
native
Annual herb  2019 Matt Berger
 2019 Diane Etchison
 2019 Ron Vanderhoff
|
|
Nemophila menziesii ssp. atomaria Baby blue eyes
native
Annual herb  2021 Steve Matson
 2021 Steve Matson
 2019 James Gonsman
|
|
Nemophila parviflora Small flowered nemophila, Smallflower nemophila
native
Annual herb  2022 Dana York
 2022 John Rawlings
 2022 Eric Koberle
|
|
Nicotiana glauca Tree tobacco
• invasive non-native
Tree, Shrub  2019 Jean B Henney
 2022 Mark Bowler
 2019 Nicole Leatherman
|
|
Oemleria cerasiformis Indian plum, Oso berry
native
Shrub  2019 Margo Bors
 2019 Stacie Wolny
 2023 David Wolfson
|
|
Olea europaea Olive
• invasive non-native
Tree, Shrub  2022 Donald Burk
 2021 Thomas Reyes
 2022 Ron Vanderhoff
|
|
Orobanche fasciculata Clustered broomrape
native
Perennial herb (parasitic)  2016 Jim Xerogeanes
 2016 Jim Xerogeanes
 2016 Yolanda Waddell
|
|
Orthocarpus purpurascens Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover
native
Annual herb  2020 David Greenberger
 2019 Ron Vanderhoff
 2023 R.A. Chasey
|
|
Osmorhiza chilensis Sweet cicely
native
Perennial herb  2021 Mike Russler
 2020 Bob Sweatt
 2020 Bob Sweatt
|
|
Parapholis incurva Curved sicklegrass, Sickle grass
non-native
Annual grass  2022 R.A. Chasey
 2021 Cynthia Powell
 2022 Ron Vanderhoff
|
|
Pedicularis densiflora Warrior's plume, Indian warrior
native
Perennial herb  2015 Dee Warenycia
 2019 Jason Mills
 2017 Joshua Borkowski
|
|
Pellaea andromedifolia Coffee cliffbrake, Coffee fern
native
Fern  2021 Mike Russler
 2021 Steve Matson
 2020 Tina Curiel
|
|
Pellaea mucronata Bird's foot fern, Birdfoot cliffbrake, Birdfoot fern
native
Fern  2012 Ron Vanderhoff
 2022 Helen Hancock
 2023 Julia Markey
|
|
Pentagramma triangularis Gold back fern, Goldenback fern
native
Fern  2021 Ron Vanderhoff
 2018 Miao Ling He
 2018 Cynthia Powell
|
|
Perideridia kelloggii Kellogg's yampah, Yampah
native
Perennial herb  2022 Suzanne L. Weakley
 2022 R.A. Chasey
 2022 R.A. Chasey
|
|
Phacelia californica California phacelia, Phacelia, Rock phacelia
native
Perennial herb  2013 Robert Sikora
 2017 James Gonsman
 2020 R.A. Chasey
|
|
Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope
native
Annual herb  2023 Richard Spjut
 2023 Richard Spjut
 2022 Mike Russler
|
|
Phacelia imbricata Imbricate phacelia
native
Perennial herb  2020 Bob Sill
 2021 Aaron Sunshine
 2021 Ron Vanderhoff
|
|
Phalaris aquatica Bulbous canarygrass, Harding grass
• invasive non-native
Perennial grass  2018 Thomas Reyes
 2021 Lenihan Mazur
 2022 Lenihan Mazur
|
|
Phalaris californica California canarygrass, Canarygrass
native
Perennial grass  2021 Dan Quinn
 2017 Toni Corelli
 2018 Brian Charles
|
|
Phlox gracilis Slender phlox
native
Annual herb  2021 Mike Russler
 2003 Steve Matson
 2003 Steve Matson
|
|
Pholistoma auritum Blue fiestaflower, Fiesta flower
native
Annual herb  2019 Mary Wloch
 2015 Barry Thomson
 2015 Steven M Norris
|
|
Pholistoma membranaceum White fiesta flower, White fiestaflower
native
Annual herb  2023 David Wolfson
 2019 Gary McDonald
 2022 Mike Russler
|
|
Phoradendron villosum Mistletoe
native
Shrub (parasitic)  2022 David popp
 2020 R.A. Chasey
 2021 R.A. Chasey
|
|
Phragmites australis Common reed
native
Perennial grass  2013 Ron Vanderhoff
 2020 Ron Vanderhoff
 2022 Steve Matson
|
|
Pinus pinea Italian stone pine
non-native
Tree  2018 Michael Mitchell
 2020 Diana Wahl
 2015 Chris Jaster
|
|
Piperia elegans Coast piperia, Elegant piperia, Elegant rein orchid
native
Perennial herb  2018 Alexandra Kookootsedes
 2022 Julia Larke
 2022 Hunter Breck
|
|
Piperia unalascensis Alaska piperia, Alaska rein orchid, Rein orchid
native
Perennial herb  2006 Steve Matson
 2022 Steve Matson
 2019 Ron Vanderhoff
|
|
Piptatherum miliaceum Smilo grass
• invasive non-native
Perennial grass  2022 Donald Burk
 2009 Keir Morse
 2022 Donald Burk
|
|
Plagiobothrys canescens Grey popcorn flower, Valley popcorn flower, Valley popcornflower
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 nothofulvus Rusty haired popcorn flower, Rusty popcorn flower, Rusty popcornflower
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2013 Jean Pawek
|
|
Plantago erecta California plantain, Dotseed plantain, Foothill plantain
native
Annual herb  2021 Charles Russell
 2008 Margo Bors
 2022 Mike Russler
|
|
Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass
• invasive non-native
Perennial herb  2017 Gary McDonald
 2019 Joe Engelbrecht
 2021 Ken Lunders
|
|
Platanus racemosa California sycamore, Western sycamore
native
Tree  2021 Ron Vanderhoff
 2019 Rachelle Gray
 2018 Ron Vanderhoff
|
|
Platystemon californicus Cream cups, Creamcups
native
Annual herb  2019 Diane Etchison
 2022 John L. Thompson
 2020 Mitchell Coleman
|
|
Plectritis ciliosa Long spurred plectritis, Longspur seablush
native
Annual herb  2022 Steve Matson
 2005 Steve Matson
 2022 Steve Matson
|
|
Plectritis congesta Sea blush, Shortspur seablush
native
Annual herb  2022 Richard Sullivan
 2022 Richard Sullivan
 2015 Aaron Schusteff
|
|
Poa howellii Howell's blue grass, Howell's bluegrass
native
Annual grass  2018 Ken Hickman
 2020 Ken Hickman
 2020 Ken Hickman
|
|
Poa secunda ssp. secunda One sided blue grass, Pine bluegrass, Sandberg's bluegrass
native
Perennial grass  2018 Ron Vanderhoff
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Pogogyne serpylloides Thyme leaf mesa mint, Thymeleaf mesamint
native
Annual herb  2020 Stacie Wolny
 2022 R.A. Chasey
 2020 Stacie Wolny
|
|
Polycarpon tetraphyllum Four leaved all seed, Four leaved allseed, Four leaved polycarp
non-native
Annual herb  2020 Ron Vanderhoff
 2019 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Polygonum arenastrum Prostrate knotweed
non-native
Annual, Perennial herb  2016 Barbara Boethling
 2021 Ron Vanderhoff
 2014 Richard Chasey
|
|
Polypodium californicum California polypody
native
Fern  2020 Ron Vanderhoff
 2021 Ron Vanderhoff
 2022 Suzanne L. Weakley
|
|
Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass
• invasive non-native
Annual grass  2020 Edith Allen
 2021 Ron Vanderhoff
 2014 Steve Matson
|
|
Potamogeton pectinatus Sago pondweed
native
Perennial herb (aquatic)  2021 Ron Vanderhoff
 2021 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Potentilla glandulosa Sticky cinquefoil
native
Perennial herb  2020 Mary Conway
 2019 Diane Etchison
 2020 Diane Etchison
|
|
Prunus emarginata Bitter cherry
native
Tree, Shrub  2020 Belinda Lo
 2019 Susan McDougall
 2019 Zachary Snider
|
|
Prunus ilicifolia Holly leaf cherry, Holly leaved cherry, Hollyleaf cherry
native
Tree, Shrub  2022 David Strauch
 2019 Marisa Persaud
 2019 Bryant Baker
|
|
Prunus virginiana var. demissa Chokecherry, Western choke cherry, Western chokecherry
native
Tree, Shrub  2020 Bryant Baker
 2020 Susan McDougall
 2020 Susan McDougall
|
|
Psilocarphus brevissimus var. brevissimus Short woollyheads, Woolly heads, Woolly marbles
native
Annual herb  2020 R.A. Chasey
 2021 David popp
 2020 Ron Vanderhoff
|
|
Psilocarphus tenellus Slender woolly marbles, Slender woollyheads
native
Annual herb  2006 Steve Matson
 2017 Toni Corelli
 2018 Ron Vanderhoff
|
|
Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern
native
Fern  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2022 Bob Sweatt
|
|
Pterostegia drymarioides Fairy mist, Woodland threadstem
native
Annual herb  2020 Dick Rawson
 2018 Ron Vanderhoff
 2015 Diane Etchison
|
|
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 kelloggii Black oak, California black oak
native
Tree  2018 John Schmidt
 2020 Kim Cabrera
 2020 Janith Johnson
|
|
Quercus lobata California white oak, Valley oak
native
Tree  2018 stephen rosenthal
 2023 Helen Hancock
 2020 Charles Russell
|
|
Quercus wislizeni var. frutescens Bush interior live oak, Chaparral oak, Live oak
native
Tree, Shrub  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2013 Neal Kramer
|
|
Rafinesquia californica California chicory, California plumseed
native
Annual herb  2019 David Greenberger
 2021 Ron Vanderhoff
 2017 Steve Matson
|
|
Ranunculus aquatilus var. capillaceus white water butter cup
native
Perennial herb (aquatic)  2018 Cynthia Powell
 2016 Ken Lunders
 2007 Steve Matson
|
|
Ranunculus californicus California buttercup
native
Perennial herb  2019 Diane Etchison
 2019 Diane Etchison
 2020 Mitchell Coleman
|
|
Ranunculus hebecarpus Delicate buttercup, Pubescent fruited buttercup, Slender annual buttercup
native
Annual herb  2019 Ron Vanderhoff
 2021 Ron Vanderhoff
 2019 Ron Vanderhoff
|
|
Raphanus sativus Cultivated radish, Jointed charlock, Wild radish
• invasive non-native
Annual, Biennial herb  2017 Lisa Miller
 2020 Ron Vanderhoff
 2023 Julia Markey
|
|
Rhamnus californica California coffeeberry
native
Shrub  2019 Talila Golan
 2001 Lynn Overtree
 2019 Mary Conway
|
|
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
 2020 Rebecca Schoenenberger
 2019 Diane Etchison
|
|
Ribes californicum California gooseberry, Hillside gooseberry
native
Shrub  2020 Sue Graue
 2019 Sue Graue
 2018 Gary McDonald
|
|
Ribes malvaceum Chaparral currant
native
Shrub  2020 Bryant Baker
 2020 Bryant Baker
 2020 Bryant Baker
|
|
Ribes menziesii Canyon gooseberry, Gooseberry
native
Shrub  2019 Michael Mitchell
 2016 Steve Matson
 2016 Steve Matson
|
|
Rigiopappus leptocladus Rigiopappus, Wire weed, Wireweed
native
Annual herb  2019 Ken Hickman
 2021 Steve Laymon
 2022 John Rawlings
|
|
Robinia pseudoacacia Black locust
• invasive non-native
Tree  2021 Ron Vanderhoff
 2021 David Wolfson
 2015 Ron Vanderhoff
|
|
Rorippa nasturtium-aquaticum Watercress
native
Perennial herb (aquatic)  2019 Patrick Furtado
 2016 Joan Hampton
 2019 Diane Etchison
|
|
Rosa californica California wild rose, California wildrose
native
Shrub  2022 Suzanne L. Weakley
 2022 Suzanne L. Weakley
 2020 R.A. Chasey
|
|
Rosa gymnocarpa Dwarf rose, Baldhip rose
native
Shrub  2012 Michael Mitchell
 2012 Michael Mitchell
 2017 David popp
|
|
Rosa spithamea Ground rose, Sonoma rose
native
Shrub  2020 David Krause
 1973 Geoff Burleigh
 2009 Neal Kramer
|
|
Rubus armeniacus Himalayan blackberry, black berry
non-native
Shrub  2014 James Gonsman
 2020 Julie A. Kierstead
 2018 Richard Spjut
|
|
Rubus ursinus California blackberry, Pacific blackberry
native
Vine, Shrub  2018 Ken Lunders
 2019 Ron Vanderhoff
 2015 Kelli Kallenborn
|
|
Rumex acetosella Common sheep sorrel
• invasive non-native
Perennial herb  2017 Gary McDonald
 2008 Steve Matson
 2019 Patrick Furtado
|
|
Rumex conglomeratus Clustered dock, Green dock
non-native
Perennial herb  2020 Ron Vanderhoff
 2021 David popp
 2020 Ron Vanderhoff
|
|
Rumex crispus Curly dock, Curly leaved dock, Rhubarb
• invasive non-native
Perennial herb  2018 Tim Lewis
 2019 Diane Etchison
 2022 David Strauch
|
|
Rupertia physodes California tea, Common rupertia, Forest scurfpea
native
Perennial herb  2021 Mary Ann Machi
 2009 Chris Wagner
 2020 R.A. Chasey
|
|
Salix laevigata Polished willow, Red willow
native
Tree  2017 Steve Matson
 2019 Barbara Brydolf
 2022 Mark Gary
|
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub  2017 Susan Kotelnicki
 2022 Ron Vanderhoff
 2020 Steve Matson
|
|
Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed
• invasive non-native
Annual herb  2017 Ron Vanderhoff
 2021 Mike Russler
 2016 Steven Thorsted
|
|
Salvia columbariae Chia sage
native
Annual herb  2020 Ron Vanderhoff
 2022 Mike Russler
 2022 Mike Russler
|
|
Salvia mellifera Black sage
native
Shrub  2017 Steve Matson
 2022 Suzanne L. Weakley
 2019 Diane Etchison
|
|
Sambucus mexicana Blue elderberry
native
Tree, Shrub  2021 Mike Russler
 2020 Diane Etchison
 2022 El Byrne
|
|
Sanicula arctopoides Footsteps of spring, Yellow mats
native
Perennial herb  2019 Eliezer Margolis
 2017 James Gonsman
 2017 James Gonsman
|
|
Sanicula bipinnata Poison sanicle
native
Perennial herb  2008 Steve Matson
 2009 Keir Morse
 2022 R.A. Chasey
|
|
Sanicula bipinnatifida Purple sanicle, Snakeroot, Purple Sanicle, Shoe Buttons
native
Perennial herb  2019 Diane Etchison
 2018 Gary McDonald
 2020 Susan McDougall
|
|
Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle
native
Perennial herb  2020 Susan McDougall
 2020 Ryan Carle
 2020 R.A. Chasey
|
|
Satureja douglasii Yerba buena
native
Perennial herb  2019 Gary McDonald
 2012 Gary McDonald
 2012 Gary McDonald
|
|
Saxifraga californica Greene's saxifrage
native
Perennial herb  2020 Cara Wilcox
 2016 Steve Matson
 2016 Steve Matson
|
|
Scandix pecten-veneris Shepherd's needle, Shepherdsneedle, Venus' needle
non-native
Annual herb, Vine  2006 Steve Matson
 2018 Stacie Wolny
 2006 Steve Matson
|
|
Schinus molle Peruvian pepper tree, Peruvian peppertree
• invasive non-native
Tree  2021 stephen rosenthal
 2017 William McCarey
 2000 Joe DiTomaso
|
|
Scirpus fluviatilis River bulrush
native
Perennial grasslike herb  2010 Louis-M. Landry
 2010 Louis-M. Landry
 2010 Louis-M. Landry
|
|
Scirpus microcarpus Panicled bulrush, Small fruited bulrush
native
Perennial grasslike herb  2022 Doug Allshouse
 2008 Steve Matson
 2013 Ron Vanderhoff
|
|
Scrophularia californica California bee plant, California figwort
native
Perennial herb  2020 Bob Sweatt
 2006 Steve Matson
 2019 Cynthia Powell
|
|
Scutellaria tuberosa Danny's skullcap, Scullcap
native
Perennial herb  2006 Steve Matson
 2016 Ron Vanderhoff
 2012 Ron Vanderhoff
|
|
Selaginella bigelovii Bigelow's moss fern, Bigelow's spike moss, Bushy spikemoss
native
 2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Senecio vulgaris Common groundsel, Old man in the spring, Old man of spring
non-native
Annual herb  2017 Barbara Boethling
 2019 Ron Vanderhoff
 2021 Toni Corelli
|
|
Sherardia arvensis Blue fieldmadder, Field madder
non-native
Annual herb  2020 Stacie Wolny
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Sidalcea malviflora Checker bloom, Checker mallow, Dwarf checkerbloom
native
Perennial herb  2022 David Strauch
 2022 Suzanne L. Weakley
 2018 Sheila Lodge
|
|
Silene gallica Common catchfly, Windmill pink
non-native
Annual herb  2019 Mary Wloch
 2017 Gary McDonald
 2019 Gary McDonald
|
|
Silybum marianum Blessed milkthistle, Milk thistle
• invasive non-native
Annual, Perennial herb  2020 Nancy Hamlett
 2009 Barry Rice
 2019 Marisa Persaud
|
|
Sinapis arvensis Charlock mustard
• invasive non-native
Annual herb  2020 Randy Huey
 2021 Randy Huey
 2022 Mike Russler
|
|
Sisymbrium irio London rocket
• invasive non-native
Annual herb  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Mike Russler
|
|
Sisymbrium officinale Hedge mustard, Hedgemustard
non-native
Annual herb  2013 Neal Kramer
 2022 Julian Geoghegan
 2021 Ann Garside
|
|
Sisyrinchium bellum Western blue eyed grass
native
Perennial herb  2020 Mary Conway
 2020 Benjamin Gould
 2019 Stacie Wolny
|
|
Smilacina stellata Starry false lily of the valley
native
Perennial herb  2021 Cyril Guyot
 2003 Steve Matson
 2020 Susan McDougall
|
|
Solanum americanum American black nightshade, Common nightshade, Small flowered nightshade
native
Annual, Perennial herb  2014 Steve Matson
 2019 Gary McDonald
 2021 David Wolfson
|
|
Solanum umbelliferum Blue witch nightshade, Bluewitch nightshade
native
Shrub  2022 Mike Russler
 2014 Steve Matson
 2014 Steve Matson
|
|
Sonchus asper Spiny sowthistle
• invasive non-native
Annual herb  2010 Michael Mitchell
 2020 Julie A. Kierstead
 2017 MCOSD Restoration Crew
|
|
Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle
non-native
Annual herb  2019 Diane Etchison
 2015 Jesse Rorabaugh
 2008 Gary McDonald
|
|
Spartium junceum Gorse, Spanish broom
• invasive non-native
Shrub  2020 Ron Vanderhoff
 2006 Jennifer Naegele
 2021 Mary Herr
|
|
Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry
non-native
Annual, Perennial herb  2023 Ron Vanderhoff
 2023 Ron Vanderhoff
 2023 Ron Vanderhoff
|
|
Stachys ajugoides var. rigida Mexican hedgenettle
native
Perennial herb  2023 Mary Ann Machi
 2016 Steve Matson
 2016 Steve Matson
|
|
Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle
native
Perennial herb  2014 Steve Matson
 2014 Steve Matson
 2020 Bryant Baker
|
|
Stellaria media Chickweed
non-native
Annual herb  2018 Gary McDonald
 2018 Gary McDonald
 2015 Diane Etchison
|
|
Stellaria nitens Shining chickweed, Shiny chickweed, Smooth chickweed
native
Annual herb  2020 Ken Hickman
 2022 Catherine Chang
 2017 David popp
|
|
Stephanomeria virgata Rod wirelettuce, Tall stephanomeria, Twiggy wreath plant
native
Annual herb  2021 Alice Cummings
 2019 Steven M Norris
 2022 Helen Hancock
|
|
Streptanthus albidus ssp. peramoenus Most beautiful jewel flower, Most beautiful jewelflower
• rare native
Annual herb  2021 Meghan Lindt
 2019 Lynn Robertson
 2021 Bryant Baker
|
|
Streptanthus glandulosus var. glandulosus Bristly jewelflower
native
Annual herb 2021 Meghan Lindt
 2020 Stacie Wolny
2021 Bryant Baker
|
|
Stylomecon heterophylla Wind poppy
native
Annual herb  2017 Gary McDonald
 2021 Mike Russler
 2020 Joe Engelbrecht
|
|
Symphoricarpos albus var. laevigatus Common snowberry, Upright snowberry
native
Shrub  2020 Jacob Smith
 2015 Robert Sikora
 2020 Jacob Smith
|
|
Symphoricarpos mollis Creeping snowberry, Trailing snowberry
native
Shrub  2019 Ron Vanderhoff
 2020 Cara Wilcox
 2019 Ron Vanderhoff
|
|
Tauschia hartwegii Hartweg's tauschia, Hartweg's umbrellawort, Tauschia
native
Perennial herb  2006 Steve Matson
 2006 Steve Matson
 2006 Steve Matson
|
|
Thalictrum fendleri var. polycarpum Fendler's meadow rue, Meadow rue, Torrey's meadow rue
native
Perennial herb  2017 Thomas Reyes
 2019 Patrick Furtado
 2009 Keir Morse
|
|
Thysanocarpus curvipes var. curvipes Fringe Pod
native
Annual herb  2019 Matt Berger
 2020 R.A. Chasey
 2022 Mike Russler
|
|
Thysanocarpus curvipes var. elegans Fringe pod, Fringed pod, Hairy lacepod
native
Annual herb  2020 Ron Vanderhoff
 2001 Jeff Abbas
 2018 Julie Kierstead Nelson
|
|
Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod
native
Annual herb  2021 Helen Hancock
 2008 Keir Morse
 2021 R.A. Chasey
|
|
Torilis arvensis Field hedge parsley, Spreading hedgeparsley, Tall Sock-Destroyer
• invasive non-native
Annual herb  2019 Ron Vanderhoff
 2018 Gary McDonald
 2018 Lindsey Hack
|
|
Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley
non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2022 R.A. Chasey
|
|
Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak
native
Vine, Shrub  2020 Ron Vanderhoff
 2019 Randy Huey
 2021 Bryant Baker
|
|
Tragopogon porrifolius Purple salsify
non-native
Perennial herb  2019 Julie dinsdale
 2015 David Wolfson
 2020 Martin Cooper
|
|
Tribulus terrestris Puncture vine, Puncturevine
• invasive non-native
Annual herb  2015 Steve Matson
 2020 Ron Vanderhoff
 2020 Maura Hay
|
|
Trichostema lanceolatum Vinegarweed
native
Annual herb  2018 Ron Vanderhoff
 2016 Nathan Mudry
 2014 Diane Etchison
|
|
Trientalis latifolia Pacific starflower
native
Perennial herb  2018 Blair Pubols
 2014 James Gonsman
 2008 Steve Matson
|
|
Trifolium albopurpureum var. albopurpureum Indian clover, Rancheria clover
native
Annual herb  2021 Mike Russler
 2011 Jorg & Mimi Fleige
 2013 Zoya Akulova
|
|
Trifolium albopurpureum var. dichotomum Branched indian clover
native
Annual herb  2023 Helen Hancock
 2022 Helen Hancock
 2023 Helen Hancock
|
|
Trifolium bifidum var. decipiens Notch leaf clover
native
Annual herb  2022 R.A. Chasey
 2022 R.A. Chasey
 2021 Cameron Chabre
|
|
Trifolium depauperatum var. truncatum Dwarf sack clover
native
Annual herb  2021 Ron Vanderhoff
 2015 Debra L. Cook
 2004 Carol W. Witham
|
|
Trifolium fucatum Bull clover, Sour clover
native
Annual herb  2019 James Gonsman
 2019 James Gonsman
 2019 Paul Aigner
|
|
Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover
native
Annual herb  2016 Steve Matson
 2016 Steve Matson
 2016 Steve Matson
|
|
Trifolium hirtum Rose clover
• invasive non-native
Annual herb  2011 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Trifolium incarnatum Crimson clover
non-native
Annual herb  2018 Tim Lewis
 2019 Amy Rapport
 2008 Steve Matson
|
|
Trifolium microcephalum Hairy clover, Small headed clover
native
Annual herb  2005 Steve Matson
 2016 Michael Mitchell
 2019 Ron Vanderhoff
|
|
Trifolium microdon Thimble clover, Valparaiso clover
native
Annual herb  2022 Dee Shea Himes
 2022 Dee Shea Himes
 2008 Neal Kramer
|
|
Trifolium subterraneum Sub clover, Subterranean clover
non-native
Annual herb  2008 Steve Matson
 2008 Steve Matson
 2008 Steve Matson
|
|
Trifolium willdenovii Tomcat clover
native
Annual herb  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2018 Stacie Wolny
|
|
Trillium chloropetalum Common trillium, Giant wakerobin, Trillium
native
Perennial herb  2020 Bob Sweatt
 2019 Susan McDougall
 2020 Bob Sweatt
|
|
Triphysaria pusilla Dwarf owl's clover, Little owl's clover
native
Annual herb  2018 Steve Matson
 2018 Steve Matson
 2022 R.A. Chasey
|
|
Trisetum canescens Nodding oatgrass, Nodding trisetum, Tall trisetum
native
Perennial grass  2020 John Rawlings
 2022 Ellen Uhler
 2017 MCOSD EDRR
|
|
Trisetum cernuum Nodding oatgrass, Nodding trisetum
native
Perennial grass  2019 Kimberly Moses
 2019 Kimberly Moses
 2011 Steve Matson
|
|
Triteleia hyacinthina White brodiaea, Wild hyacinth, White Brodiaea, Fool's Onion
native
Perennial herb  2023 Suzanne L. Weakley
 2008 Steve Matson
 2020 Steve Conger
|
|
Triteleia laxa Ithuriel's spear
native
Perennial herb  2018 Gary McDonald
 2018 Tim Lewis
 2019 Matt Berger
|
|
Triticum aestivum Common wheat, Wheat
non-native
Annual grass  2022 Lenihan Mazur
 2021 Julian Geoghegan
 2021 John Rawlings
|
|
Tropidocarpum gracile Dobie pod, Slender keel fruit, Slender tropidocarpum
native
Annual herb  2015 Michael Mitchell
 2019 Gary McDonald
 2022 R.A. Chasey
|
|
Typha angustifolia Nail rod, Narrow leaf cattail, Narrowleaf cattail
non-native
Perennial herb (aquatic)  2019 Ron Vanderhoff
 2019 Ron Vanderhoff
 2021 Ron Vanderhoff
|
|
Umbellularia californica Bay laurel, California bay, California laurel, bay tree
native
Tree  2016 Steve Matson
 2016 Steve Matson
 2020 Ron Vanderhoff
|
|
Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle
native
Perennial herb  2022 Donald Burk
 2019 Hunter Breck
 2021 R.A. Chasey
|
|
Urtica urens Annual stinging nettle, Dwarf nettle
non-native
Annual herb  2019 Gary McDonald
 2018 Ron Vanderhoff
 2018 Ron Vanderhoff
|
|
Verbena lasiostachys Common verbena, Vervain, Western verbena
native
Perennial herb  2020 Greg Froelich
 2018 Gary McDonald
 2008 Keir Morse
|
|
Verbena lasiostachys var. scabrida Robust vervain
native
Perennial herb  2021 R.A. Chasey
 2020 Kevin Dixon
 2020 Ron Vanderhoff
|
|
Veronica arvensis Corn speedwell, Speedwell
non-native
Annual herb  2006 Steve Matson
 2018 Villa Piazza
 2020 mike andrews
|
|
Veronica persica Bird's eye speedwell, Birdeye speedwell
non-native
Annual herb  2019 Patrick Furtado
 2022 Bob Sweatt
 2022 Ron Vanderhoff
|
|
Vicia americana var. americana American vetch
native
Perennial herb, Vine  2017 James Gonsman
 2021 Ken Lunders
 2021 Ken Lunders
|
|
Vicia benghalensis Purple vetch, Reddish tufted vetch, Vetch
non-native
Annual herb, Vine  2019 Diane Etchison
 2023 R.A. Chasey
 2020 Ron Vanderhoff
|
|
Vicia gigantea Giant vetch
native
Perennial herb  2021 Dana York
 2019 Cynthia Powell
 2013 James Gonsman
|
|
Vicia sativa ssp. nigra Common vetch, Garden vetch, Smaller common vetch
non-native
Annual herb, Vine  2020 Ken Lunders
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
|
|
Vicia sativa ssp. sativa Garden vetch, Pubescent common vetch, Spring vetch
non-native
Annual herb, Vine  2007 Toni Corelli
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
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Vicia villosa ssp. varia Smooth vetch, Thick fruited vetch, Winter vetch
non-native
Annual herb, Vine  2017 Gary McDonald
 2017 Gary McDonald
 2020 Julie A. Kierstead
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Viola ocellata Pinto violet, Twoeyed violet, Western heart's ease
native
Perennial herb  2020 Amy Rapport
 2008 Steve Matson
 2018 Stacie Wolny
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Viola pedunculata California golden violet, Johnny jump up
native
Perennial herb  2014 James Gonsman
 2023 Julia Markey
 2023 Richard Sullivan
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Vulpia bromoides Brome fescue
non-native
Annual grass  2022 Diana Wahl
 2021 Toni Corelli
 2021 David popp
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Vulpia microstachys var. microstachys Small fescue
native
Annual grass  2022 Aaron Sunshine
 2011 Steve Matson
 2011 Steve Matson
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Vulpia microstachys var. pauciflora Small fescue
native
Annual grass 2022 Aaron Sunshine
2011 Steve Matson
2011 Steve Matson
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Vulpia myuros var. myuros Rattail sixweeks grass
• invasive non-native
Annual grass  2021 Aaron Echols
 2021 Ron Vanderhoff
 2022 John Rawlings
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Woodwardia fimbriata Chain fern, Giant chain fern, Giant chainfern
native
Fern  2019 Julie Kierstead Nelson
 2020 R.A. Chasey
 2019 Susan McDougall
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Wyethia glabra Coast range mule ears, Shining mule ears, Smooth mule ears
native
Perennial herb  2020 Amy Rapport
 2019 Colleen Herr
 2018 MCOSD EDRR
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Xanthium spinosum Spiny clotbur, Spiny cockleburr
non-native
Annual herb  2018 Joslyn Curtis
 2014 Richard Spellenberg
 2008 Neal Kramer
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Xanthium strumarium Rough cockleburr
native
Annual herb  2019 Ron Vanderhoff
 2011 Steve Matson
 2019 Ron Vanderhoff
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Yabea microcarpa California hedge parsley, False carrot
native
Annual herb  2021 Helen Hancock
 2022 R.A. Chasey
 2012 Toni Corelli
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Zigadenus fremontii Fremont's star lily, Fremont's death camas
native
Perennial herb  2020 Bryant Baker
 2021 Steve Matson
 2020 Karen Swift
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