PCT: Islip Saddle to Eagles Roost
San Gabriel Mountains, area south of Mt. Williamson, from Islip Saddle to Eagles Roost Picnic Area Los Angeles County |
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| RT Hawke, Shaun Hawke, Tom Chester, Walt Fidler, Jane Tirrell, Jim Adams, Adrienne Ballwey and Michael Charters (2013-06-15) |
| 96 PLANTS |
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Abies concolor Balsam fir, White fir, White silver fir
native
Tree  2016 Richard Spjut
 Geoff Burleigh
 2021 David popp
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Acanthoscyphus parishii var. parishii Parish's oxytheca
• rare native
Annual herb  2021 Rico Ramirez
 2020 Rico Ramirez
 2020 Rico Ramirez
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Achillea millefolium Common yarrow
native
Perennial herb  2022 Andy Ford
 2014 James Gonsman
 2023 Ron Vanderhoff
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native
Perennial herb  2022 Ron Vanderhoff
 2020 Ron Vanderhoff
 2020 Ron Vanderhoff
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Acmispon nevadensis var. davidsonii Davidson's sierra nevada lotus
native
Perennial herb  2018 Michael Charters
 2016 dora black
 2018 Michael Charters
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Agoseris retrorsa Spear leaved agoseris, Spearleaf agoseris, Spearleaf mountain dandelion
native
Perennial herb  2019 Ron Vanderhoff
 2019 Diane Etchison
 2022 Helen Hancock
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Agropyron cristatum ssp. pectinatum Crested wheatgrass
non-native
Perennial grass  2019 David popp
 2009 Zoya Akulova
 2013 Aaron Arthur
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Allium burlewii Burlew's onion
native
Perennial herb (bulb)  2019 Gordon Jenkins
 2020 Neal Kramer
 2020 Neal Kramer
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Allium monticola San bernardino mountain onion
native
Perennial herb (bulb)  2019 Manzanita Dictionary
 2017 John L. Thompson
 2014 Ron Vanderhoff
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Arceuthobium campylopodum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe
native
Perennial herb (parasitic)  2016 Richard Spjut
 2020 Charles Russell
 2021 Mikhela Aiken
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Arctostaphylos patula Green leaf manzanita, Greenleaf manzanita
native
Shrub  2021 Dee Shea Himes
 2017 Elysa DuCharme
 2019 David Magney
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Asclepias eriocarpa Indian milkweed, Kotolo milkweed, Woolypod milkweed
native
Perennial herb  2018 Jennifer Poore
 2019 Cliff Halverson
 2019 Ron Vanderhoff
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Boechera platysperma Pioneer rockcress
native
Perennial herb  2019 David Greenberger
 2008 Steve Matson
 2018 John Doyen
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Boechera repanda Yosemite rockcress
native
Perennial herb  2014 Steve Matson
 2014 Steve Matson
 2014 Steve Matson
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Brickellia californica Brickell bush, California brickellbush, California brickellia
native
Perennial herb  2017 Stephen Rosenthal
 2018 Diane Etchison
 2022 Ron Vanderhoff
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Bromus carinatus var. carinatus California brome, Mountain brome
native
Perennial grass  2016 Richard Chasey
 2013 Jean Pawek
 2010 Neal Kramer
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Bromus tectorum Cheatgrass, downy brome, Downy brome grass, Downy chess
• invasive non-native
Annual grass  2022 Ron Vanderhoff
 2022 Ron Vanderhoff
 2022 Ron Vanderhoff
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Calocedrus decurrens Incense cedar, Post cedar, White cedar
native
Tree  2018 Julie Kierstead Nelson
 2020 Angelique Herman
 2018 Richard Spjut
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Calochortus invenustus Plain mariposa lily
native
Perennial herb  Geoff Burleigh
 Geoff Burleigh
 2012 Ron Vanderhoff
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Caulanthus amplexicaulis Clasping leaved caulanthus, Claspingleaf wild cabbage
native
Annual herb  2021 Bryant Baker
 2017 Aaron Echols
 2008 Thomas Stoughton
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Ceanothus cordulatus Mountain whitethorn
native
Shrub  2021 Bob Sweatt
 2021 Arlee Montalvo
 2018 Julie Kierstead Nelson
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Ceanothus integerrimus var. macrothyrsus Deerbrush
native
Shrub  2015 Steve Matson
 2014 Steve Matson
 2015 Steve Matson
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Cercocarpus ledifolius Curl leaf mountain mahogany, Desert mountain mahogany
native
Tree, Shrub  2019 Matt Berger
 2007 Steve Matson
 2016 Zoya Akulova
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Chaenactis santolinoides Santolina chaenactis, Santolina pincushion
native
Perennial herb  2019 Matt Berger
 2019 Diane Etchison
 2021 Arlee Montalvo
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Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge
native
Annual, Perennial herb  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
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Chenopodium atrovirens Dark green goosefoot, Forest goosefoot, Pinyon goosefoot
native
Annual herb  2021 Steve Matson
 2021 Steve Matson
 2021 Steve Matson
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Chenopodium fremontii Fremont's goosefoot
native
Annual herb  2021 Arlee Montalvo
 2021 Arlee Montalvo
 2017 Drew Beccue
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Chrysolepis sempervirens Bush chinquapin, Sierra chinquapin
native
Shrub  2018 Julie Kierstead Nelson
 2014 James Gonsman
 2011 Wynn Anderson
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Cordylanthus nevinii Nevin's bird's beak
native
Annual herb  2021 R.A. Chasey
 2021 R.A. Chasey
 2021 Arlee Montalvo
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Cryptantha muricata var. denticulata Prickly-nut cryptantha
native
Annual herb  2022 Mary Merriman
 2010 Steve Matson
 2010 Steve Matson
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Dudleya cymosa ssp. pumila Canyon liveforever, Low canyon dudleya
native
Perennial herb  2019 Matt Berger
 2021 Mary Conway
 2020 Kristin Sabo
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Dysphania botrys Jerusalem oak goosefoot
non-native
Annual herb  2022 Steve Matson
 2022 Steve Matson
 2017 Adam Chasey
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Elymus elymoides Bottlebrush squirreltail, Squirrel tail grass, Squirreltail
native
Perennial grass  2022 Steve Matson
 2010 Keir Morse
 2010 Keir Morse
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Epilobium canum ssp. latifolium California fushia, Hummingbird trumpet, Mountain california fuchsia
native
Perennial herb  2015 Steve Matson
 2014 James Gonsman
 2016 Rebecca Schoenenberger
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Eriastrum densifolium ssp. austromontanum Perennial vool star, Southern mountain eriastrum
native
Perennial herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
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Ericameria cuneata var. cuneata Cliff goldenbush, Rock goldenbush
native
Shrub  2021 Mike Russler
 2018 Matt Berger
 2021 Mike Russler
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Ericameria nauseosa var. bernardina San bernardino rubber rabbitbrush
native
Shrub  2021 Joanna Clines
 2022 Arlee Montalvo
 2022 Arlee Montalvo
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Ericameria nauseosa var. oreophila Rubber rabbitbrush
native
Shrub  2012 James Gonsman
 2016 Steve Matson
 2016 Steve Matson
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Erigeron foliosus var. foliosus Leafy fleabane, Thread stemmed fleabane
native
Perennial herb, Shrub  2023 Ron Vanderhoff
 2021 Jacob Martin
 2022 Ron Vanderhoff
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Eriodictyon trichocalyx var. trichocalyx Hairy yerba santa
native
Shrub  2018 Matt Berger
 2021 Arlee Montalvo
 2021 Arlee Montalvo
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Eriogonum cithariforme var. cithariforme Cithara buckwheat
native
Annual herb  2011 George Butterworth
 2011 George Butterworth
 2011 George Butterworth
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Eriogonum davidsonii Davidson buckwheat, Davidson's buckwheat
native
Annual herb  2022 Mike Russler
 2022 Mike Russler
 2022 Mike Russler
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Eriogonum fasciculatum var. polifolium California buckwheat, Eastern mojave buckwheat
native
Shrub  2020 Ron Vanderhoff
 2021 Mike Russler
 2022 Steve Matson
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Eriogonum microthecum Slender buckwheat
native
Perennial herb  2011 Steve Matson
 2021 Bob Sweatt
 2021 Bob Sweatt
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Eriogonum nudum var. pauciflorum Few flowered buckwheat, Long trumpet, Naked buckwheat
native
Shrub  2021 Steve Laymon
 2014 Steve Matson
 2014 Steve Matson
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Eriogonum parishii Mountainmist, Parish's buckwheat
native
Annual herb  2020 Aaron Echols
 2021 Arlee Montalvo
 2020 Aaron Echols
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Eriogonum saxatile Hoary buckwheat, Rock buckwheat, Rock eriogonum
native
Perennial herb  2017 Thomas Egan
 2019 Dana York
 2009 Ron Vanderhoff
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Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat, Alpine sulphur flower buckwheat
• rare native
Perennial herb  2015 Keir Morse
 2010 Gary A. Monroe
 2015 Keir Morse
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Eriogonum wrightii var. subscaposum Bastardsage, Wright's buckwheat
native
Perennial herb, Shrub  2020 Mark Kircher
 2011 Steve Matson
 2011 Steve Matson
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Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow
native
Shrub  2013 James Gonsman
 2020 Mary Conway
 2020 Ron Vanderhoff
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Erysimum capitatum var. capitatum Sanddune wallflower
native
Perennial herb  2019 David Greenberger
 2008 Keir Morse
 2020 Susan McDougall
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Festuca arundinacea Alta fescue, Reed fescue, Tall fescue
• invasive non-native
Perennial grass  2022 Cynthia Powell
 2020 Robert Steers
 2017 MCOSD EDRR
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Gayophytum oligospermum Pinegrove gayophytum, Pinegrove groundsmoke
native
Annual herb  2012 Keir Morse
 2012 Keir Morse
 2012 Keir Morse
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Gilia ochroleuca ssp. vivida Volcanic gilia
native
Annual herb  2021 Don M. Davis
 2021 Don M. Davis
 2021 Don M. Davis
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Hesperoyucca whipplei Chaparral yucca
native
Shrub  Geoff Burleigh
 2023 Jordan Collins
 2020 Julia Markey
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Heuchera elegans Urn-flowered alumroot
• rare native
Perennial herb  2019 Aaron Echols
 2019 Diane Etchison
 2019 Diane Etchison
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Hosackia crassifolia var. crassifolia Broad leaved lotus
native
Perennial herb  2019 Ron Vanderhoff
 2015 Steve Matson
 2015 Steve Matson
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Hulsea vestita ssp. gabrielensis Pumice alpinegold, San gabriel mtns. sunflower
• rare native
Perennial herb  2019 Matt Berger
 2020 Matt Berger
 2013 Anuja Parikh and Nathan Gale
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Kopsiopsis strobilacea California ground-cone
native
Perennial herb (parasitic)  2020 Ralph Henson
 2023 MCOSD EDRR
 2019 Jonathan Lee
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Leptosiphon breviculus Mojave linanthus
native
Annual herb  2019 Diane Etchison
 2019 Marisa Persaud
 2019 Diane Etchison
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Lewisia rediviva var. minor Bitter root
native
Perennial herb  2018 Steve Matson
 2018 Steve Matson
 2018 Steve Matson
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Linanthus concinnus San gabriel linanthus
• rare native
Annual herb  2022 Don M. Davis
 2019 Matt Berger
 2019 Matt Berger
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Linanthus pungens Granite prickly phlox
native
Shrub  2020 Bob Sweatt
 2019 Susan McDougall
 2013 James Gonsman
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Lupinus elatus Tall silky lupine
• rare native
Perennial herb  2003 Christopher L. Christie
 2003 Michael Charters
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Lupinus excubitus var. austromontanus Southern mountain lupine
native
Shrub  2016 Steve Matson
 2016 Steve Matson
 2022 Mike Russler
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Melica stricta Nodding melica, Rock melicgrass
native
Perennial grass  2003 Steve Matson
 2009 Steve Matson
 2009 Steve Matson
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Mimulus johnstonii Johnston's monkeyflower
• rare native
Annual herb  2019 Aaron Echols
 2019 Matt Berger
 2017 Keir Morse
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native
Perennial herb  2012 Steve Matson
 2012 Steve Matson
 2012 Steve Matson
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Oenothera elata ssp. hirsutissima Evening primrose, Hairy evening primrose, Hooker's evening primrose
native
Perennial herb  2015 Bill Haley
 2021 David Wolfson
 2010 Patrick Furtado
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Oreonana vestita Woolly mountain parsley, Woolly mountainparsley
• rare native
Perennial herb  2019 Matt Berger
 2006 Michael Charters
 2018 Jane Tirrell
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Orobanche fasciculata Clustered broomrape
native
Perennial herb (parasitic)  2016 Jim Xerogeanes
 2016 Jim Xerogeanes
 2016 Yolanda Waddell
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Orobanche parishii ssp. parishii Parish broomrape
native
Perennial herb (parasitic)  2019 Jonathan Frank
 2014 Neal Kramer
 2004 James M. Andre
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Packera ionophylla Tehachapi ragwort
• rare native
Perennial herb  2019 Matt Berger
 2019 Matt Berger
 2019 Matt Berger
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Pedicularis semibarbata Bearded lousewort, Pine lousewort, Pine woods lousewort
native
Perennial herb  2020 Bob Sweatt
 2021 Mike Russler
 2019 Diane Etchison
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Penstemon grinnellii var. grinnellii Grinnell's beardtongue
native
Perennial herb  2014 Steve Matson
 2014 Steve Matson
 2014 Steve Matson
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Penstemon rostriflorus Beaked penstemon, Bridge penstemon, Bridge's penstemon
native
Perennial herb  2010 Steve Matson
 2008 Steve Matson
 2010 Steve Matson
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Phoradendron bolleanum Bollean mistletoe
native
Shrub (parasitic)  2014 Steve Matson
 2019 Aaron Echols
 2014 Steve Matson
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Pinus coulteri Big cone pine, Bull pine, Coulter pine
native
Tree  2015 Michelle Cloud Hughes
 2019 Bryant Baker
 2020 Diane Etchison
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Pinus jeffreyi Jeffrey pine
native
Tree  2019 Susan McDougall
 2016 Dave Brandt
 2019 Julie A. Kierstead
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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
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Polygonum aviculare ssp. depressum Prostrate knotweed
non-native
Annual, Perennial herb  2016 Barbara Boethling
 2021 Ron Vanderhoff
 2014 Richard Chasey
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Pterospora andromedea Pine drops, Pine drops, Woodland pinedrops
native
Perennial herb (parasitic)  2019 Bryant Baker
 2019 Bob Sweatt
 2006 Steve Matson
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Pyrola dentata Toothed wintergreen
native
Perennial herb  2011 Steve Matson
 2021 Mike Russler
 2021 R.A. Chasey
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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
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Ribes nevadense Mountain pink currant, Sierra currant
native
Shrub  2021 Paul Watts
 2020 Bob Sweatt
 2003 Steve Matson
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Ribes roezlii var. roezlii Sierra gooseberry
native
Shrub  2004 Steve Matson
 2003 Steve Matson
 2003 Steve Matson
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Robinia pseudoacacia Black locust
• invasive non-native
Tree  2021 Ron Vanderhoff
 2021 David Wolfson
 2015 Ron Vanderhoff
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Sambucus caerulea Blue elderberry
native
Shrub  2020 Diane Etchison
 2021 Richard Spjut
 2016 Chris Leslie
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Sarcodes sanguinea Snow plant, Snowplant
native
Perennial herb (mycoparasitic)  2014 Jim Moore
 2020 Matt Berger
 2001 Russell Towle
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Sequoiadendron giganteum Giant sequoia, Sierra redwood, big tree
native
Tree  2017 Alison Sheehey
 2019 Catherine Capone
 2019 Catherine Capone
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Silene parishii Parish's campion, Parish's catchfly
native
Perennial herb  2020 John L. Thompson
 2015 Matt Berger
 2020 John L. Thompson
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Stipa occidentalis var. californica California needle grass
native
Perennial grass  2021 Phyllis Fitzsimons
 2022 Steve Matson
 2022 Steve Matson
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Stipa parishii var. parishii Parish's needlegrass
native
Perennial grass  2022 Steve Matson
 2019 Steve Matson
 2022 Steve Matson
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Symphoricarpos rotundifolius var. parishii Parish's snowberry
native
Shrub  2016 Richard Spjut
 2019 Michelle Tollett
 2017 Keir Morse
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Tauschia parishii Parish's tauschia, Parish's umbrellawort
native
Perennial herb  2013 Steve Matson
 2013 Steve Matson
 2013 Steve Matson
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