| ||||||
|
Modoc NF
From 2007 MDF Modoc County |
|
|||||
| Cheryl Beyer / USDA Modoc NF (2014-03-17) | ||||||
| 1133 PLANTS |
|
Abies concolor Balsam fir, White fir, White silver fir
native
Tree 
2016 Richard Spjut
Geoff Burleigh
2021 David popp
|
|
Achillea millefolium Common yarrow
native
Perennial herb 
2022 Andy Ford
2020 Bob Sweatt
2018 Gary McDonald
|
|
Achnatherum hymenoides Indian rice grass, Sand grass
native
Perennial grass 
2023 Steve Matson
2022 Steve Matson
2022 Ryan O'Dell
|
|
Achnatherum lemmonii Lemmon's needle grass
native
Perennial grass 
2021 Arlee Montalvo
2008 Steve Matson
2021 Arlee Montalvo
|
|
Achnatherum lettermanii Letterman's needle grass
native
Perennial grass  2005 Steve Matson
 2004 Steve Matson
 2004 Steve Matson
|
|
Achnatherum nelsonii ssp. dorei Mountain needle grass
native
Perennial grass 
2022 John Rawlings
2012 Belinda Lo
2012 Belinda Lo
|
|
Achnatherum nevadense Nevada needle grass
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
|
|
Achnatherum occidentale Western needlegrass
native
Perennial grass 
2022 Steve Matson
2022 Steve Matson
2022 Arlee Montalvo
|
|
Achnatherum occidentale ssp. californicum California needle grass
native
Perennial grass 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Achnatherum occidentale ssp. occidentale Western needle grass
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
 2013 Robert Steers
|
|
Achnatherum thurberianum Thurber's needle grass
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
|
|
Aconitum columbianum Columbian monkshood, Monkshood
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Actaea rubra baneberry, Western baneberry
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2002 Gerald Carr
|
|
Adenocaulon bicolor American trailplant, Trail plant
native
Perennial herb 
2018 MCOSD EDRR
2020 Cynthia Powell
2020 Bob Sweatt
|
|
Adonis aestivalis Summer pheasant's eye
non-native
Annual herb 
2016 Terry Miller
2003 Christopher L. Christie
2003 Christopher L. Christie
|
|
Agastache parvifolia Small leaved horsemint, Smallleaf giant hyssop
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2008 John Doyen
|
|
Agastache urticifolia Horse mint, Horsemint giant hyssop, Nettle leaf giant hyssop
native
Perennial herb 
2020 Bob Sweatt
2010 Gerald Carr
2010 Gerald Carr
|
|
Ageratina occidentalis Western eupatorium, Western joepiweed, Western snakeroot
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Agoseris aurantiaca Orange agoseris, Orange flowered agoseris
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Agoseris glauca var. glauca Pale agoseris, Short beaked agoseris
native
Perennial herb 
2020 Steve Matson
2020 Steve Matson
2020 Steve Matson
|
|
Agoseris heterophylla Annual agoseris, Annual mountain dandelion
native
Annual herb 
2020 Bob Sweatt
2021 Lisa Berry
2020 Bob Sweatt
|
|
Agoseris retrorsa Spear leaved agoseris, Spearleaf agoseris, Spearleaf mountain dandelion
native
Perennial herb 
2018 Steve Matson
2018 Steve Matson
2018 Steve Matson
|
|
Agropyron desertorum Crested wheatgrass
non-native
Perennial grass  2005 Steve Matson
 2009 Zoya Akulova
|
|
Agropyron repens Quack grass
non-native
Perennial grass  2005 Louis-M. Landry
 2005 Louis-M. Landry
 2008 Keir Morse
|
|
Agrostis exarata Spike bentgrass, Spike redtop
native
Perennial grass 
2022 Teal Derrer
2021 David popp
2022 John Rawlings
|
|
Agrostis gigantea Creeping bentgras, Giant bentgrass, Redtop
non-native
Perennial grass 
2023 Dana York
2023 Dana York
2022 John Rawlings
|
|
Agrostis humilis Mountain bent grass
• rare native
Perennial grass  2004 Steve Matson
 2015 Belinda Lo
 2015 Belinda Lo
|
|
Agrostis idahoënsis Colonial bentgrass, Idaho bentgrass
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
|
|
Agrostis pallens Leafy bent grass, Diego bent grass, Seashore bentgrass
native
Perennial grass 
2021 John Rawlings
2020 Susan McDougall
2021 John Rawlings
|
|
Agrostis scabra Rough bentgrass, Ticklegrass
native
Perennial grass  2005 Steve Matson
 2007 Louis-M. Landry
|
|
Agrostis stolonifera Creeping bentgrass, Redtop
• invasive non-native
Perennial grass 
2018 Rachelle Gray
2018 Rachelle Gray
2018 Rachelle Gray
|
|
Agrostis thurberiana Mountain bent grass
• rare native
Perennial grass 2004 Steve Matson
2015 Belinda Lo
2015 Belinda Lo
|
|
Agrostis variabilis Mountain bentgrass, Mountain redtop
native
Perennial grass  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
|
|
Alisma plantago-aquatica Northern water plantain
native
Perennial herb (aquatic) 
2023 Ken-ichi Ueda
2022 R.A. Chasey
2019 Gena Bentall
|
|
Alisma triviale Northern water plantain
native
Perennial herb (aquatic)
2023 Ken-ichi Ueda
2022 R.A. Chasey
2019 Gena Bentall
|
|
Allium acuminatum Taper tipped onion, Tapertip onion
native
Perennial herb (bulb) 
2021 Steve Matson
2021 Steve Matson
2006 Steve Matson
|
|
Allium atrorubens Dark red onion, Darkred onion
native
Perennial herb (bulb) 
2005 Steve Matson
2010 Steve Matson
2011 Steve Matson
|
|
Allium bisceptrum Twincrest onion
native
Perennial herb (bulb) 
2012 Steve Matson
2008 Steve Matson
2012 Steve Matson
|
|
Allium campanulatum Dusky onion, Sierra onion
native
Perennial herb (bulb) 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Allium lemmonii Lemmon's onion
native
Perennial herb (bulb) 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Allium parvum Dwarf onion, Small onion
native
Perennial herb (bulb) 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Allium platycaule Broad stemmed onion, Broadstemmed onion, Flat stemmed onion
native
Perennial herb (bulb) 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Allium validum Pacific mountain onion, Pacific onion, Swamp onion
native
Perennial herb (bulb) 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Allophyllum gilioides ssp. violaceum Dense false gilia, Dense false gilyflower
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Allotropa virgata Candystriped allotropa, Sugar stick, Sugarstick
native
Perennial herb (mycoparasitic) 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Alopecurus aequalis Short awned foxtail, Sonoma alopecurus, Water foxtail
native
Perennial grass 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Alopecurus carolinianus Carolina foxtail
native
Annual grass 
2019 David Greenberger
2019 David popp
2016 David popp
|
|
Alopecurus geniculatus Marsh foxtail, Water foxtail
native
Perennial grass  2013 Robert Sikora
 2021 Aaron Arthur
 2009 Trent M. Draper
|
|
Alopecurus pratensis Meadow foxtail
• invasive non-native
Perennial grass 
2022 Mike Russler
2023 R.A. Chasey
2015 David Greenberger
|
|
Alyssum alyssoides Pale alyssum, Small alyssum, Sweet alyssum
non-native
Annual herb 
2018 John Doyen
2018 John Doyen
|
|
Alyssum desertorum Desert alyssum, Desert madwort
non-native
Annual herb 
2012 Orrin Winton
2012 Barry Breckling
2012 Barry Breckling
|
|
Alyssum minus var. micranthum Alyssum
non-native
Annual herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Alyssum simplex Alyssum
non-native
Annual herb
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Amaranthus californicus California amaranth, California pigweed
native
Annual herb 
2016 Gerald Carr
2016 Gerald Carr
2014 jim richards
|
|
Amelanchier alnifolia Saskatoon serviceberry, Service berry
native
Shrub 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Amelanchier utahensis Pale leaved serviceberry, Service berry, Utah service berry
native
Shrub 
2022 R.A. Chasey
2021 Robert Steers
2022 R.A. Chasey
|
|
Amsinckia menziesii var. intermedia Common fiddleneck
native
Annual herb 
2020 Matt Berger
2019 Ron Vanderhoff
2021 David popp
|
|
Amsinckia tessellata Bristly fiddleneck, Checker fiddleneck, Devil's lettuce
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Anemone occidentalis Western anemone, Western pasque flower
native
Perennial herb 
2019 Jane Cohn
2017 Art Clark
2020 Bob Sweatt
|
|
Angelica arguta Lyall's angelica
native
Perennial herb 
2020 Julie A. Kierstead
2020 Julie A. Kierstead
2020 Julie A. Kierstead
|
|
Antennaria argentea Silver pussytoes, Silvery everlasting, Silvery pussytoes
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2023 Alaine Arslan
|
|
Antennaria dimorpha Gray cushion pussytoes, Low pussytoes
native
Perennial herb 
2007 Gerald Carr
2007 Gerald Carr
2007 Gerald Carr
|
|
Antennaria geyeri Geyer's pussytoes, Mountain pussytoes
native
Perennial herb 
2022 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Antennaria luzuloides Rush pussytoes, Silvery brown pussytoes
native
Perennial herb 
2010 Gerald Carr
2010 Gerald Carr
2010 Gerald Carr
|
|
Antennaria rosea Rose pussytoes, Rosy everlasting, Rosy pussytoes
native
Perennial herb 
2012 Steve Matson
2012 Steve Matson
2012 Steve Matson
|
|
Antennaria rosea ssp. con?nis Rose pussytoes, Rosy everlasting, Rosy pussytoes
native
Perennial herb
2012 Steve Matson
2012 Steve Matson
2012 Steve Matson
|
|
Antennaria rosea ssp. rosea Rosy pussytoes
native
Perennial herb 
2015 John Doyen
2019 David Greenberger
2018 David popp
|
|
Antennaria stenophylla Alpine pussytoes, Rocky mountain pussytoes
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2015 Steve Matson
|
|
Apocynum androsaemifolium Bitter dogbane, Spreading dogbane
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Apocynum cannabinum Indian hemp, Indianhemp dogbane, HEMP DOGBANE
native
Perennial herb 
2019 Ron Vanderhoff
2015 Ron Vanderhoff
2021 Mike Russler
|
|
Aquilegia formosa Crimson columbine, Sitka columbine, Western columbine
native
Perennial herb 
2022 Charles Russell
2019 Diane Etchison
2022 David Strauch
|
|
Arabis drummondii Drummond's rockcress
native
Perennial herb  2010 Barry Breckling
 2013 Debra L. Cook
 2013 Debra L. Cook
|
|
Arabis glabra Tower rockcress
native
Perennial herb 
2021 David Wolfson
2021 Mike Russler
2020 Chico Hiking Association
|
|
Arabis hirsuta var. pycnocarpa Hairy fruit rock cress
native
Perennial herb  2016 Keir Morse
 2016 Keir Morse
 © 2015 Barry Breckling
|
|
Arabis holboellii var. pinetorum Woodland rockcress
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Arabis holboellii var. retrofracta Reflexed rockcress
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2021 Steve Matson
|
|
Arabis lyallii var. lyallii Lyall's rockcress
native
Perennial herb 
2023 Dana York
2023 Dana York
2023 Dana York
|
|
Arabis microphylla var. microphylla Small-leaved rock cress
• rare native
Perennial herb  2011 Mary Winter
 2011 Mary Winter
|
|
Arabis platysperma var. howellii Howell's rockcress
native
Perennial herb 
2018 Matt Berger
2018 Matt Berger
2019 Bob Sweatt
|
|
Arabis platysperma var. platysperma Elko rockcress
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Arabis pulchra Beautiful rockcress
native
Perennial herb 
2012 Steve Matson
2012 Steve Matson
2012 Steve Matson
|
|
Arabis rectissima var. rectissima Bristly leaf rockcress
native
Perennial herb 
2019 Mary Merriman
2015 Barry Breckling
2014 David popp
|
|
Arabis suffrutescens var. suffrutescens Woody rockcress
native
Perennial herb 
2014 Dana York
2014 Dana York
2014 Dana York
|
|
Arceuthobium americanum American dwarf mistletoe, Lodgepole dwarf mistletoe, Lodgepole pine dwarf mistletoe
native
Perennial herb (parasitic) 
2022 Donald Burk
2022 Donald Burk
2014 David popp
|
|
Arctostaphylos nevadensis Pine mat manzanita, Pinemat manzanita
native
Shrub 
2015 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Arenaria aculeata Prickly sandwort
native
Perennial herb  2001 Jeff Abbas
 2014 John Doyen
 2017 John Doyen
|
|
Arenaria congesta Ballhead Sandwort
native
Perennial herb 
2020 Bob Sweatt
2022 Bob Sweatt
2020 Bob Sweatt
|
|
Arenaria congesta var. congesta Capitate sandwort
native
Perennial herb  2011 Steve Matson
 2011 Steve Matson
|
|
Arenaria congesta var. simulans Capitate sandwort
native
Perennial herb  1995 Saint Mary's College of California
|
|
Arenaria congesta var. subcongesta Capitate sandwort
native
Perennial herb  2011 Steve Matson
 2011 Steve Matson
 2011 Steve Matson
|
|
Arenaria congesta var. suffrutescens Suffrutescent sandwort
native
Perennial herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Arenaria kingii ssp. compacta King's smooth sandwort
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Arenaria kingii var. glabrescens King's smooth sandwort
native
Perennial herb
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Arnica amplexicaulis Clasping arnica
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Arnica chamissonis ssp. foliosa Chamisso arnica
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Arnica cordifolia Heart leaved arnica, Heartleaf arnica
native
Perennial herb 
2022 Cynthia Powell
2006 Keir Morse
2003 Steve Matson
|
|
Arnica dealbata Mock leopardbane
native
Perennial herb 
2018 Matt Berger
2017 John Doyen
2023 Julie A. Kierstead
|
|
Arnica fulgens Foothill arnica, Hillside arnica
• rare native
Perennial herb (rhizomatous) 
2011 Robert L. Carr
2011 Robert L. Carr
2011 Robert L. Carr
|
|
Arnica fulgens var. sororia Soro arnica, Twin arnica
native
Perennial herb (rhizomatous) 
Robert L. Carr 2013
2005 Steve Tyron
Robert L. Carr 2013
|
|
Arnica latifolia Broadleaf arnica, Mountain arnica
native
Perennial herb 
2019 Bob Sweatt
2019 Bob Sweatt
2019 Bob Sweatt
|
|
Arnica longifolia Longleaf arnica, Seep spring arnica
native
Perennial herb 
2023 R.A. Chasey
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Arnica mollis Cordilleran arnica, Cordillerean anica, Hairy arnica
native
Perennial herb 
2019 David Greenberger
2021 Mike Russler
2021 Mike Russler
|
|
Arnica parryi Nodding arnica, Parry's arnica
native
Perennial herb 
2022 Susan McDougall
2007 John Doyen
2023 Alaine Arslan
|
|
Arnica sororia Soro arnica, Twin arnica
native
Perennial herb (rhizomatous)
Robert L. Carr 2013
2005 Steve Tyron
Robert L. Carr 2013
|
|
Arrhenatherum elatius Tall oatgrass
non-native
Perennial grass 
2020 Doug Allshouse
2021 John Rawlings
2019 Julian Geoghegan
|
|
Artemisia arbuscula ssp. arbuscula Dwarf sagebrush, Little sagebrush, Low sagebrush
native
Shrub 
2022 Dana York
2022 Dana York
2016 Richard Spjut
|
|
Artemisia biennis Biennial sagewort
non-native
Annual, Perennial herb 
2017 Adonis Tate
2017 Ron Vanderhoff
2023 R.A. Chasey
|
|
Artemisia cana ssp. bolanderi Bolander silver sagebrush, Bolander's silver sagebrush
native
Shrub 
2013 Steve Matson
2013 Steve Matson
2020 Steve Matson
|
|
Artemisia douglasiana California mugwort, Douglas' sagewort
native
Perennial herb 
2022 Ron Vanderhoff
2016 Glen Schneider
2021 Mike Russler
|
|
Artemisia ludoviciana Mugwort, Silver wormwood
native
Perennial herb 
2019 Bob Sweatt
2011 Steve Matson
2011 Steve Matson
|
|
Artemisia ludoviciana ssp. candicans Gray mugwort, White sagebrush
native
Perennial herb  2018 Susan McDougall
 2018 Susan McDougall
 2018 Susan McDougall
|
|
Artemisia michauxiana Lemon sagewort, Michally sagewort
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Artemisia tridentata Big sagebrush, Common sagebrush
native
Shrub 
2023 Ryan O'Dell
2008 Thomas Stoughton
2022 Cynthia Powell
|
|
Artemisia tridentata ssp. spiciformis Snowfield sagebrush
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Artemisia tridentata ssp. tridentata Basin big sagebrush
native
Shrub 
2020 David Greenberger
2021 Bob Sweatt
2016 James Gonsman
|
|
Artemisia tridentata ssp. vaseyana Mountain big sagebrush, Mountain sagebrush
native
Shrub 
2017 David popp
2003 Christopher L. Christie
2017 David popp
|
|
Artemisia tridentata ssp. wyomingensis Wyoming big sagebrush, Wyoming sagebrush
native
Shrub  2000 Gary A. Monroe
 2012 Jean Pawek
 2000 Gary A. Monroe
|
|
Asclepias cordifolia Heart leaf milkweed, Heartleaf milkweed, Purple milkweed
native
Perennial herb 
2020 Zane Walker
2022 R.A. Chasey
2023 Mary Ann Machi
|
|
Asclepias fascicularis Narrow leaf milkweed
native
Perennial herb 
2018 Ron Vanderhoff
2014 Steve Matson
2019 Ron Vanderhoff
|
|
Asclepias speciosa Showy milkweed
native
Perennial herb 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Asperugo procumbens German madwort
non-native
Annual herb  2008 Trent M. Draper
 2008 Trent M. Draper
 2008 Trent M. Draper
|
|
Astragalus anxius Troubled milk vetch, Troubled milkvetch
• rare native
Perennial herb  2012 Steve Matson
 2012 Steve Matson
 2009 F. Gauna
|
|
Astragalus curvicarpus var. curvicarpus Coiled locoweed, Curved pod milk vetch, Curvepod milkvetch
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2008 Steve Matson
|
|
Astragalus inversus Susanville milk vetch, Susanville milkvetch
• rare native
Perennial herb 
2022 Steve Matson
2019 Matt Berger
2019 Matt Berger
|
|
Astragalus lemmonii Lemmon's milk vetch, Lemmon's milkvetch
• rare native
Perennial herb 
2018 Gerald Carr
2018 Gerald Carr
2018 Gerald Carr
|
|
Astragalus lentiginosus var. lentiginosus Freckled milk vetch, Freckled milkvetch
native
Annual, Perennial herb  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
|
|
Astragalus pulsiferae var. coronensis Modoc plateau milk vetch
• rare native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Astragalus pulsiferae var. suksdor?i Ames' milkvetch, Pulsifer's milk vetch
native
Perennial herb
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Astragalus purshii var. purshii Pursh's milk vetch, Woollypod milkvetch
native
Perennial herb 
2016 Ray Gill
2016 Ray Gill
2006 Steve Matson
|
|
Astragalus purshii var. tinctus Pursh's milk vetch, Woollypod milkvetch
native
Perennial herb 
2019 Matt Berger
2019 Matt Berger
2003 Steve Matson
|
|
Astragalus whitneyi Balloonpod milkvetch, Whitney's milk vetch
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Julie Kierstead Nelson
|
|
Astragalus whitneyi var. confusus Conelike milkvetch, Whitney's milk vetch
native
Perennial herb 
2012 Gerald Carr
2012 Gerald Carr
2012 Gerald Carr
|
|
Athyrium americanum American alpine lady fern
native
Fern 
2022 John Rawlings
2021 R.A. Chasey
2021 R.A. Chasey
|
|
Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Balsamorhiza hookeri var. lagocephala Hooker's balsam root, Hooker's balsamroot
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2022 Bob Sweatt
|
|
Balsamorhiza macrolepis var. platylepis Hooker's balsam root, Hooker's balsamroot
native
Perennial herb
2020 Bob Sweatt
2020 Bob Sweatt
2022 Bob Sweatt
|
|
Balsamorhiza sagittata Arrow leaved balsam root, Arrow leaved balsamroot, Arrowleaf balsamroot
native
Perennial herb 
2020 Mark Kircher
2018 Adam Chasey
2018 David popp
|
|
Balsamorhiza serrata Serrate balsam root, Serrate balsamroot
• rare native
Perennial herb 
2010 Gerald Carr
2010 Gerald Carr
2010 Gerald Carr
|
|
Barbarea orthoceras American rocket, American wintercress, Erectpod wintercress
native
Perennial herb 
2015 James Gonsman
2019 Diane Etchison
2020 Diane Etchison
|
|
Beckmannia syzigachne American sloughgrass, Slough grass
native
Annual grass 
2021 Emily R. Allen
2018 Japhia Huhndorf
2021 Emily R. Allen
|
|
Berula erecta Cut leaved water parsnip, Cutleaf water parsnip, Cutleaf waterparsnip
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Betula glandulosa var. glandulifera Resin birch; scrub birch
• rare native
Shrub  2008 Sierra Pacific Industries
|
|
Betula occidentalis Water birch
native
Tree, Shrub 
2022 Steve Matson
2022 Steve Matson
2013 Steve Matson
|
|
Betula pumila var. glandulifera Resin birch; scrub birch
• rare native
Shrub 2008 Sierra Pacific Industries
|
|
Bidens tripartita Threelobe beggarticks, Tickseed
non-native
Annual herb  © 2014 Richard Spellenberg
 2014 Richard Spellenberg
|
|
Blepharipappus scaber Blepharipappus, Rough blepharipappus, Rough eyelashweed
native
Annual herb 
2019 David Greenberger
2011 Steve Matson
2008 Steve Matson
|
|
Boschniakia strobilacea ground cone, groundcone , California ground-cone
native
Perennial herb (parasitic) 
2020 Ralph Henson
2023 MCOSD EDRR
2019 Jonathan Lee
|
|
Botrychium ascendens Upswept moonwort
• rare native
Fern (rhizomatous) 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Botrychium crenulatum Scalloped moonwort
• rare native
Fern (rhizomatous) 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Botrychium lunaria Common moonwort, Moonwort grapefern
• rare native
Fern (rhizomatous)  2014 Dr. Amadej Trnkoczy
 2011 Ryan Batten
 2007 Dr. Amadej Trnkoczy
|
|
Botrychium minganense Mingan moonwort
• rare native
Fern (rhizomatous)  2020 Belinda Lo
 2011 Aaron E. Sims
 2014 Sierra Pacific Industries
|
|
Botrychium montanum Western goblin
• rare native
Fern (rhizomatous)  2019 Belinda Lo
 2012 Belinda Lo
 2012 Belinda Lo
|
|
Botrychium pinnatum Northwestern moonwort
• rare native
Fern (rhizomatous)  2007 John Game
 2020 Belinda Lo
 2007 Shawn DeCew
|
|
Botrychium simplex Little grape fern, Little grapefern, Yosemite moonwort
native
Fern 
2005 Steve Matson
2005 Steve Matson
2018 Belinda Lo
|
|
Brassica rapa Common mustard, Field mustard, Rape mustard
• invasive non-native
Annual herb 
2024 David Wolfson
2021 Diane Etchison
2018 Angelique Herman
|
|
Brickellia greenei Greene brickellbush, Greene's brickelbush, Greene's brickellia
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2020 R.A. Chasey
|
|
Brickellia microphylla Little leaved brickellia, Littleleaf brickellbush
native
Shrub 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Briza maxima Big quaking grass, Big quakinggrass, Rattlesnake grass
• invasive non-native
Annual grass 
2017 Gary McDonald
2018 Bill Schmidt
2017 Gary McDonald
|
|
Briza minor Little quaking grass, Little quakinggrass, Little rattlesnake grass
non-native
Annual grass 
2023 R.A. Chasey
2019 Gary McDonald
2019 Gary McDonald
|
|
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
|
|
Brodiaea elegans ssp. elegans Harvest brodiaea
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2015 Julie A. Kierstead
|
|
Bromus briziformis Rattlesnake brome, Rattlesnake chess
non-native
Annual grass  2005 Steve Matson
 2005 Steve Matson
 2005 Steve Matson
|
|
Bromus carinatus California brome
native
Perennial grass 
2020 Ron Vanderhoff
2022 David popp
2014 Vertin Alvarez
|
|
Bromus inermis ssp. inermis Smooth brome
non-native
Perennial grass 
2011 Ramona Robison
2019 Manzanita Dictionary
2019 Manzanita Dictionary
|
|
Bromus japonicus Downy sheathed cheat, Hairy chess, Japanese brome
• invasive non-native
Annual grass 
2022 Michelle Peruzzi
2005 Steve Matson
2005 Steve Matson
|
|
Bromus laevipes Chinook brome, Narrow flowered brome, Woodland brome
native
Perennial grass 
2020 Alice Cummings
2019 Kimberly Moses
2018 Ken Hickman
|
|
Bromus orcuttianus Orcutt's brome grass
native
Annual grass 
2018 Liz Block
2018 Liz Block
2018 Liz Block
|
|
Bromus tectorum Cheatgrass, downy brome, Downy brome grass, Downy chess
• invasive non-native
Annual grass 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2022 Ron Vanderhoff
|
|
Calamagrostis canadensis Bluejoint reedgrass, Canada reedgrass
native
Perennial grass 
2022 Dana York
2020 David popp
2020 John Rawlings
|
|
Calamagrostis stricta Narrow hairgrass
native
Perennial grass (rhizomatous) 
2022 John Rawlings
2022 John Rawlings
2022 John Rawlings
|
|
Calamagrostis stricta ssp. inexpansa Narrow spiked reedgrass, Northern reedgrass, Thurber's reed grass
native
Perennial grass (rhizomatous)
2022 John Rawlings
2022 John Rawlings
2022 John Rawlings
|
|
Calandrinia ciliata red maids, Calandrinia
native
Annual herb 
2021 Mary Ann Machi
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Callitriche marginata California water starwort, Winged water starwort
native
Annual herb (aquatic) 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Callitriche palustris Vernal water-starwort
native
Annual herb 
2019 R.A. Chasey
2015 Steve Matson
2021 R.A. Chasey
|
|
Callitriche verna Vernal water-starwort
native
Annual herb
2019 R.A. Chasey
2015 Steve Matson
2021 R.A. Chasey
|
|
Calocedrus decurrens Incense cedar, Post cedar, White cedar
native
Tree 
2018 Julie Kierstead Nelson
2018 David popp
2018 Richard Spjut
|
|
Calochortus caeruleus Blue star tulip, Beavertail-Grass
native
Perennial herb 
2021 Roy West
2021 John L. Thompson
2023 Timothy Boomer
|
|
Calochortus leichtlinii Leichtlin's mariposa lily, Smokey mariposa
native
Perennial herb 
2005 Steve Matson
2022 Rick Spanel
2005 Steve Matson
|
|
Calochortus longebarbatus var. longebarbatus Long haired star tulip
• rare native
Perennial herb (bulb) 
2011 Steve Matson
2011 Steve Matson
2023 Amy Rachkowski
|
|
Calochortus macrocarpus Sagebrush mariposa lily
native
Perennial herb 
2020 David Greenberger
2011 Steve Matson
2011 Steve Matson
|
|
Caltha leptosepala ssp. howellii White marsh marigold
native
Perennial herb 
2018 Art Clark
2019 Steve Matson
2021 Mike Russler
|
|
Caltha leptosepala var. bi?ora White marsh marigold
native
Perennial herb
2018 Art Clark
2019 Steve Matson
2021 Mike Russler
|
|
Calyptridium umbellatum Cistanthe, Pussy paws, Pussy toes
native
Annual, Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Calystegia occidentalis ssp. occidentalis Chaparral false bindweed, Modoc morning glory, Western morning glory
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2019 Chico Hiking Association
|
|
Camassia quamash ssp. brevi?ora Camas, Common camas
native
Perennial herb 
2020 Bob Sweatt
2019 Cheryl Ballantyne
2019 Bob Case
|
|
Camissonia andina Plateau evening primrose
native
Annual herb 
2020 Donald Burk
2017 Thayne Tuason
1988 Dean Wm. Taylor
|
|
Camissonia subacaulis Long leaved suncup
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2020 Bob Sweatt
|
|
Camissonia tanacetifolia ssp. tanacetifolia Tansy leaf evening primrose
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Campanula scabrella Rough harebell
• rare native
Perennial herb (rhizomatous) 
2014 Steve Matson
2014 Steve Matson
2023 Glenn Fine
|
|
Cardamine breweri var. breweri Brewer's bitter cress, Brewer's bittercress
native
Perennial herb 
2005 Steve Matson
2020 Bob Sweatt
2005 Steve Matson
|
|
Cardamine occidentalis Big western bittercress, Western toothwort
native
Perennial herb  2007 François Meignant
 2018 Susan McDougall
 2018 Susan McDougall
|
|
Cardaria chalepensis Lens-podded hoary cress
• invasive non-native
Annual, Perennial herb 
2021 Donald Burk
2021 Donald Burk
2021 Ramona Robison
|
|
Cardaria pubescens Hairy whitetop
• invasive non-native
Perennial herb 
2019 Richard Spjut
2017 Leif Johnson
2019 Richard Spjut
|
|
Carduus nutans Musk thistle, Nodding plumeless thistle
• invasive non-native
Perennial herb 
2022 Bob Sweatt
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Carex abrupta Abrupt beaked sedge
native
Perennial grasslike herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Carex angustata Narrow leaved sedge, Wide fruit sedge
native
Perennial grasslike herb  2003 Steve Matson
 2003 Steve Matson
|
|
Carex aquatilis var. aquatilis Water sedge
native
Perennial grasslike herb 
2006 Keir Morse
2006 Keir Morse
2020 Cynthia Powell
|
|
Carex athrostachya Slender beak sedge, Slender leaved sedge
native
Perennial grasslike herb 
2018 Emily Allen
2004 Steve Matson
2004 Steve Matson
|
|
Carex aurea Golden fruited sedge, Golden sedge
native
Perennial grasslike herb 
2020 David Greenberger
2018 Matt Berger
1981 Dean Wm. Taylor
|
|
Carex brainerdii Brainerd's sedge
native
Perennial grasslike herb 
2022 Dana York
2003 Steve Matson
1998 Dean Wm. Taylor
|
|
Carex cusickii Cusick's sedge
native
Perennial grasslike herb 
2018 Cynthia Powell
2016 Steve Matson
2003 Steve Matson
|
|
Carex deweyana ssp. leptopoda Slender-footed sedge
native
Perennial grasslike herb 
2019 Mary Merriman
2023 R.A. Chasey
2021 Judy Schwartz
|
|
Carex diandra Lesser panicled sedge
native
Perennial grasslike herb 
2019 Matt Berger
2009 Steve Matson
2009 Steve Matson
|
|
Carex douglasii Douglas sedge, Douglas' sedge
native
Perennial grasslike herb 
2023 Donald Burk
2009 Steve Matson
2009 Steve Matson
|
|
Carex exserta Shorthair sedge, Thread leaf sedge
native
Perennial grasslike herb 
2003 Steve Matson
2022 Jordan Collins
2022 Jordan Collins
|
|
Carex geyeri Elk sedge, Elkgrass, Geyer's sedge
• rare native
Perennial grasslike herb (rhizomatous) 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Carex halliana Hall's sedge
• rare native
Perennial grasslike herb (rhizomatous) 
2022 Dana York
2019 Matt C. Berger
2008 Sean B. Smith
|
|
Carex heteroneura var. epapillosa Different nerve sedge, Variable nerved sedge
native
Perennial grasslike herb 
2003 Steve Matson
2010 Steve Matson
2006 Steve Matson
|
|
Carex heteroneura var. heteroneura Different nerve sedge, Variable nerved sedge
native
Perennial grasslike herb
2003 Steve Matson
2010 Steve Matson
2006 Steve Matson
|
|
Carex hoodii Hood's sedge
native
Perennial grasslike herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Carex illota Sheep sedge, Small headed sedge
native
Perennial grasslike herb 
2021 Steve Matson
2009 Steve Matson
2021 Steve Matson
|
|
Carex inops ssp. inops Long stolon sedge
native
Perennial grasslike herb 
2019 Matt Berger
2019 Matt Berger
2019 Matt Berger
|
|
Carex integra Smooth beak sedge
native
Perennial grasslike herb 
2009 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Carex jonesii Jones' sedge
native
Perennial grasslike herb 
2022 Dana York
2014 Steve Matson
2014 Steve Matson
|
|
Carex lasiocarpa Slender sedge, Woolly fruited sedge
• rare native
Perennial grasslike herb (rhizomatous) 
2014 Robert L. Carr
2014 Robert L. Carr
2014 Robert L. Carr
|
|
Carex lenticularis var. impressa Few ribbed sedge, Lakeshore sedge
native
Perennial grasslike herb  2002 Steve Matson
 2002 Steve Matson
 2002 Steve Matson
|
|
Carex lenticularis var. lipocarpa Fat fruited sedge, Kellogg's sedge
native
Perennial grasslike herb 
2011 Dana York
2007 Steve Matson
2007 Steve Matson
|
|
Carex leporinella Sierra hare sedge
native
Perennial grasslike herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Carex leptopoda Slender-footed sedge
native
Perennial grasslike herb
2019 Mary Merriman
2023 R.A. Chasey
2021 Judy Schwartz
|
|
Carex limosa Mud sedge, Shore sedge
• rare native
Perennial grasslike herb (rhizomatous) 
2009 Steve Matson
2020 Bob Sweatt
2019 Matt Berger
|
|
Carex luzulina Wood rush sedge, Woodrush sedge
native
Perennial grasslike herb 
2019 David Greenberger
2008 Sean B. Smith
2010 Keir Morse
|
|
Carex luzulina var. ablata Wood rush sedge, Woodrush sedge
native
Perennial grasslike herb
2019 David Greenberger
2008 Sean B. Smith
2010 Keir Morse
|
|
Carex microptera Small wing sedge
native
Perennial grasslike herb 
2018 David Greenberger
2015 Steve Matson
2015 Steve Matson
|
|
Carex multicaulis Forest sedge, Many stemmed sedge
native
Perennial grasslike herb 
2008 Steve Matson
2008 Steve Matson
2022 Julie A. Kierstead
|
|
Carex multicostata Many ribbed sedge, Manyrib sedge
native
Perennial grasslike herb  2002 Steve Matson
 2003 Steve Matson
 2002 Steve Matson
|
|
Carex nebrascensis Nebraska sedge
native
Perennial grasslike herb 
2019 Steve Matson
2022 Dianne Lake
2019 Steve Matson
|
|
Carex oregonensis Hall's sedge
• rare native
Perennial grasslike herb (rhizomatous)
2022 Dana York
2019 Matt C. Berger
2008 Sean B. Smith
|
|
Carex pachystachya Chamisso sedge, Thick headed sedge
native
Perennial grasslike herb  2003 Steve Matson
 2008 Steve Matson
 2003 Steve Matson
|
|
Carex pellita Woolly sedge
native
Perennial grasslike herb 
2019 Matt Berger
2022 Ellen Uhler
2019 Eric Wrubel
|
|
Carex petasata Liddon sedge, Liddon's sedge
• rare native
Perennial grasslike herb  2009 Sierra Pacific Industries
 2007 Dean Wm. Taylor, Ph.D.
 2007 Dean Wm. Taylor, Ph.D.
|
|
Carex raynoldsii Raynold's sedge, Raynolds' sedge
native
Perennial grasslike herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Carex rossii Ross sedge, Ross' sedge
native
Perennial grasslike herb 
2002 Steve Matson
2002 Steve Matson
2006 Steve Matson
|
|
Carex scopulorum var. bracteosa Bracted sedge, Crater sedge, Mountain sedge
native
Perennial grasslike herb 
2022 John Rawlings
2005 Aaron Schusteff
2007 Steve Matson
|
|
Carex simulata Analogue sedge, Short beaked sedge
native
Perennial grasslike herb 
2006 Steve Matson
2017 Eric Wrubel, NPS
2006 Steve Matson
|
|
Carex spectabilis Showy sedge
native
Perennial grasslike herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Carex subfusca Brown sedge, Rusty slender sedge
native
Perennial grasslike herb 
2010 Steve Matson
2010 Steve Matson
2013 Ron Vanderhoff
|
|
Carex tumulicola Foothill sedge, Slender sedge, Split awn sedge
native
Perennial grasslike herb 
2017 David Greenberger
2021 John Rawlings
2021 John Rawlings
|
|
Carex utriculata Beaked sedge, Northwest territory sedge
native
Perennial grasslike herb 
2014 Jim Moore
2018 Matt Berger
2022 Dana York
|
|
Carex vallicola Valley sedge
• rare native
Perennial grasslike herb  1998 Dean Wm. Taylor
 2003 Steve Matson
|
|
Carex vernacula Native sedge
native
Perennial grasslike herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Carex vesicaria Blister sedge
native
Perennial grasslike herb 
2019 Steve Matson
2021 Julie A. Kierstead
2019 Steve Matson
|
|
Carex vesicaria var. vesicaria Blister sedge
native
Perennial grasslike herb
2019 Steve Matson
2021 Julie A. Kierstead
2019 Steve Matson
|
|
Carex whitneyi Whitney's sedge
native
Perennial grasslike herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Castilleja applegatei Pine indian paintbrush, Wavy leaf paintbrush, Wavy leaved paintbrush
native
Perennial herb 
2019 Diane Etchison
2019 Diane Etchison
2020 David Greenberger
|
|
Castilleja applegatei ssp. pinetorum Pine wavy leaf paintbrush, Wavy leaved indian paintbrush
native
Perennial herb 
2015 Steve Matson
2014 Steve Matson
2015 Steve Matson
|
|
Castilleja arachnoidea Cobwebby indian paintbrush, Cobwebby paintbrush
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2011 Steve Matson
|
|
Castilleja brevistyla Short style owl's clover, Shortstyle indian paintbrush
native
Annual herb 
2019 Matt Berger
2024 Mike Russler
2024 Mike Russler
|
|
Castilleja campestris ssp. campestris Field owl clover, Vernal pool indian paintbrush, Yellow owl's clover
native
Annual herb 
2021 Robin Carter
2022 Charles Russell
2021 Alaine Arslan
|
|
Castilleja gleasoni Mt. Gleason paintbrush
• rare native
Perennial herb 
2023 Keir Morse
Geoff Burleigh
Geoff Burleigh
|
|
Castilleja lacera Cut leaved owl's clover, Cutleaf indian paintbrush, Foothill owl's clover
native
Annual herb 
2005 Keir Morse
2023 Robin Carter-Ervin
2021 Mike Russler
|
|
Castilleja linariifolia Desert paintbursh, Wyoming paintbrush
native
Perennial herb 
2010 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Castilleja miniata ssp. miniata Giant red indian paintbrush, Scarlet indian paintbrush
native
Perennial herb 
2014 Steve Matson
2016 Steve Matson
2021 Amber Bedgood
|
|
Castilleja pilosa Parrothead indian paintbrush, Pilose paintbrush
native
Perennial herb 
2020 Steve Matson
2008 Steve Matson
2004 Steve Matson
|
|
Castilleja pruinosa Frosted indian paintbrush, Frosted paintbrush
native
Perennial herb (hemiparasitic) 
2022 Dana York
2014 Steve Matson
2023 Dana York
|
|
Castilleja tenuis Hairy indian paintbrush, Hairy owl's clover
native
Annual herb 
2005 Steve Matson
2023 R.A. Chasey
2008 Steve Matson
|
|
Castilleja uliginosa Pitkin marsh indian paintbrush
• rare native
Perennial herb (hemiparasitic)  2002 John Game
 2002 John Game
 2002 John Game
|
|
Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush
native
Shrub 
2022 Ryan O'Dell
2021 Steve Matson
2019 Cara Wilcox
|
|
Ceanothus prostratus Mahala mats, Pinemat
native
Shrub 
2020 Bob Sweatt
2020 Bob Sweatt
2021 Steve Matson
|
|
Ceanothus velutinus var. velutinus Tobacco brush, snowbrush
native
Tree, Shrub 
2020 Bob Sweatt
2019 Susan McDougall
2021 Mike Russler
|
|
Centaurea biebersteinii Spotted knapweed
• invasive non-native
Perennial herb 
2021 Patrick Hoffman
2022 Patrick Hoffman
2019 Amanda Mills
|
|
Centaurea diffusa Diffuse knapweed, White knapweed
• invasive non-native
Perennial herb 
2020 David Greenberger
2022 Bob Sweatt
2019 Catherine Talbot
|
|
Centaurea maculosa Spotted knapweed
• invasive non-native
Perennial herb
2021 Patrick Hoffman
2022 Patrick Hoffman
2019 Amanda Mills
|
|
Centaurea solstitialis Barnaby's thistle, Yellow star thistle
• invasive non-native
Annual herb 
2022 Cynthia Powell
2019 Arlee Montalvo
2022 Mary Herr
|
|
Centaurea squarrosa Squarrose knapweed
• invasive non-native
Perennial herb 
2013 Gerald Carr
2013 Gerald Carr
2013 Gerald Carr
|
|
Centaurea stoebe ssp. micranthos Spotted knapweed
• invasive non-native
Perennial herb
2021 Patrick Hoffman
2022 Patrick Hoffman
2019 Amanda Mills
|
|
Centaurea triumfettii Squarrose knapweed
• invasive non-native
Perennial herb
2013 Gerald Carr
2013 Gerald Carr
2013 Gerald Carr
|
|
Centaurea virgata ssp. squarrosa Squarrose knapweed
• invasive non-native
Perennial herb
2013 Gerald Carr
2013 Gerald Carr
2013 Gerald Carr
|
|
Centaurium muehlenbergii Muehlenberg's centaury
native
Annual herb 
2019 Patrick Furtado
2015 James Gonsman
2011 Michael Perlmutter
|
|
Cephalanthera austiniae Phantom orchid
native
Perennial herb 
2019 Wendy Wilmes
2015 Steve Matson
2012 Kim Cabrera
|
|
Cerastium arvense Field chickweed, Meadow chickweed
native
Perennial herb 
2024 Mary Ann Machi
2019 John Rawlings
2024 Steve Conger
|
|
Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed
non-native
Annual herb 
2023 Ron Vanderhoff
2023 Ron Vanderhoff
2023 R.A. Chasey
|
|
Ceratocephala testiculata Tubercled crowfoot
non-native
Annual herb 
2022 Bob Sweatt
2011 Steve Matson
2020 Donald Burk
|
|
Cercocarpus betuloides var. macrourus Few flowered mountain mahogany
native
Tree, Shrub  2002 University of California Museum of Paleontology
 2008 John Dittes
 2008 John Dittes
|
|
Cercocarpus ledifolius var. intercedens Curl leaf mountain mahogany, Curl leaved mountain mahogany
native
Tree, Shrub 
2007 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Cercocarpus ledifolius var. intermontanus Curl leaf mountain mahogany, Curl leaved mountain mahogany
native
Tree, Shrub
2007 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Cercocarpus montanus var. macrourus Few flowered mountain mahogany
native
Tree, Shrub 2002 University of California Museum of Paleontology
2008 John Dittes
2008 John Dittes
|
|
Chaenactis douglasii var. douglasii Hoary chaenactis, Dusty pincushions, False Yarrow
native
Annual, Perennial herb 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Chaenactis glabriuscula var. heterocarpha Variable fruited yellow chaenactis, Yellow pincushion, Inner Coast Range Pincushion
native
Annual herb 
2020 David Greenberger
2022 Ryan O'Dell
2021 Steve Laymon
|
|
Chamaebatiaria millefolium Desertsweet, Fern bush
native
Shrub 
2020 Matt Berger
2017 Steve Matson
2017 Steve Matson
|
|
Chamaesaracha nana Dwarf chamaesaracha, Dwarf chamaesarachia
native
Perennial herb 
2019 Bob Case
2005 Steve Matson
2022 Bob Sweatt
|
|
Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge
native
Annual, Perennial herb 
2005 Steve Matson
2005 Steve Matson
2022 Steve Matson
|
|
native
Perennial herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Cheilanthes gracillima Lace lip fern
native
Fern 
2021 John Rawlings
2021 R.A. Chasey
2021 Steve Matson
|
|
Chenopodium atrovirens Dark green goosefoot, Forest goosefoot, Pinyon goosefoot
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Chenopodium desiccatum Aridland goosefoot, Dry goosefoot
native
Annual herb 
2003 Keir Morse
2003 Keir Morse
2003 Keir Morse
|
|
Chenopodium fremontii Fremont's goosefoot
native
Annual herb 
2021 Arlee Montalvo
2021 Arlee Montalvo
2017 Drew Beccue
|
|
Chimaphila menziesii Little prince's pine, Pipsissewa
native
Perennial herb 
2006 Steve Matson
2023 Alaine Arslan
2019 Jacob Smith
|
|
Chimaphila umbellata Blake's prince's pine, Pipsissewa, Prince's Pine
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2019 Steve Matson
|
|
Chrysolepis sempervirens Bush chinquapin, Sierra chinquapin
native
Shrub 
2023 Richard McNeill
2021 Arlee Montalvo
2016 Diane Etchison
|
|
Chrysothamnus nauseosus Rubber rabbitbrush
native
Shrub 
2018 Richard Spjut
2010 Gerald Carr
2010 Gerald Carr
|
|
Cicuta douglasii Western water hemlock
native
Perennial herb 
2015 Bob Case
2020 Julie A. Kierstead
2021 R.A. Chasey
|
|
Cinna latifolia Drooping wood reed, Wood reedgrass
native
Perennial grass 
2020 Susan McDougall
2022 Jacob Smith
2004 Steve Matson
|
|
Circaea alpina ssp. paci?ca Small enchanter's nightshade
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Cirsium andersonii Anderson's thistle, Rose thistle
native
Perennial herb 
2019 Bob Sweatt
2023 Mike Russler
2019 R.A. Chasey
|
|
Cirsium arvense Canada thistle
• invasive non-native
Perennial herb 
2012 Michael Mitchell
2012 Michael Mitchell
2022 Donald Burk
|
|
Cirsium canovirens Gray-green thistle
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Cirsium cymosum Peregrine thistle
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Cirsium douglasii var. breweri Brewer's swamp thistle, Douglas' thistle
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Cirsium occidentale var. candidissimum Snowy thistle
native
Perennial herb 
2021 Mary Conway
2021 Mary Conway
2018 Debra Valov
|
|
Cirsium occidentale var. occidentale Cobweb thistle, Cobwebby thistle
native
Perennial herb 
2022 Suzanne L. Weakley
2020 Coty Sifuentes-Winter
2019 Randy Huey
|
|
Cirsium pastoris Snowy thistle
native
Perennial herb
2021 Mary Conway
2021 Mary Conway
2018 Debra Valov
|
|
Cirsium scariosum Dwarf thistle, Elk thistle
native
Perennial herb 
2020 Bob Sweatt
2022 Melissa Harbert
2023 Ryan O'Dell
|
|
Cirsium undulatum Wavy leaved thistle, Wavyleaf thistle
non-native
Perennial herb 
2020 Chris McDonald
2020 Chris McDonald
2015 Richard Spellenberg
|
|
Cirsium vulgare Bull thistle
• invasive non-native
Perennial herb 
2017 James Bailey
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Cistanthe umbellata Cistanthe, Pussy paws, Pussy toes
native
Annual, Perennial herb
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Clarkia gracilis ssp. gracilis Graceful clarkia, Slender clarkia
native
Annual herb 
2021 Steve Laymon
2023 Larry Dizmang
2020 Steve Laymon
|
|
Clarkia lassenensis Lassen clarkia, Lassen godetia
native
Annual herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia
native
Annual herb 
2014 Steve Matson
2019 Joe Engelbrecht
2021 R.A. Chasey
|
|
Clarkia rhomboidea Diamond clarkia, Diamond petaled clarkia, Diamond fairyfan
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2008 Steve Matson
|
|
Clarkia stellata Lake almanor clarkia
native
Annual herb 
2021 Steve Laymon
2018 Steve Laymon
2018 Steve Laymon
|
|
Claytonia lanceolata Lanceleaf springbeauty, Western spring beauty, Western springbeauty
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2015 Jenny Gossett
|
|
Claytonia palustris Jonesville springbeauty, Marsh claytonia
• rare native
Perennial herb 
2019 Matt Berger
2019 Matt Berger
2019 Matt Berger
|
|
Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Claytonia rubra ssp. rubra Red stemmed miner's lettuce, Redstem springbeauty
native
Annual herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Collinsia linearis Narrow leaf collinsia, Narrowleaf blue eyed mary
native
Annual herb 
2022 Dana York
2022 Dana York
2008 Keir Morse
|
|
Collinsia torreyi var. torreyi Torrey's blue eyed mary, Torrey's collinsia
native
Annual herb 
2008 Steve Matson
2008 Steve Matson
2022 Richard Sullivan
|
|
Collinsia torreyi var. wrightii Wright's blue eyed mary, Wright's collinsia
native
Annual herb 
2022 Steve Laymon
2004 Steve Matson
Geoff Burleigh
|
|
Collomia larsenii Talus collomia
• rare native
Perennial herb (rhizomatous) 
2023 Dana York
1991 Julie A. Kierstead
1991 Julie A. Kierstead
|
|
Collomia linearis Narrow leaved collomia, Slenderleaf collomia, Tiny trumpet
native
Annual herb 
2019 Bob Sweatt
2003 Steve Matson
2003 Steve Matson
|
|
Collomia tinctoria Staining Collomia, Yellow staining collomia
native
Annual herb 
2016 Steve Matson
2006 Steve Matson
2016 Steve Matson
|
|
Collomia tracyi Tracy's collomia
• rare native
Annual herb 
2022 Dana York
2022 Dana York
2023 Steve Conger
|
|
Comarum palustre Marsh cinquefoil
native
Perennial herb 
2020 Bob Sweatt
2018 Dean Taylor
2006 Steve Matson
|
|
Conium maculatum Poison hemlock
• invasive non-native
Perennial herb 
2019 James Bailey
2013 Toni Corelli
2016 Cynthia Powell
|
|
Convolvulus arvensis Field bindweed, Orchard morningglory
• invasive non-native
Perennial herb, Vine 
2022 Steve Matson
2021 Ron Vanderhoff
2022 Steve Matson
|
|
Corallorhiza maculata Spotted coralroot, Summer coral root, Summer coralroot
native
Perennial herb 
2023 Steve Conger
2013 BOB CASE
2018 Rick Wachs
|
|
Corallorhiza mertensiana Merten's coral root, Pacific coralroot
native
Perennial herb 
2021 John L. Thompson
2018 Julie Kierstead Nelson
2022 Mary Sue Ittner
|
|
Corallorhiza striata Hooded coralroot, Striped coral root
native
Perennial herb 
2021 Mary Ann Machi
2022 Steve Conger
2019 Timothy Boomer
|
|
Cordylanthus capitatus Yakima bird's beak
• rare native
Annual herb (hemiparasitic)  2012 Aaron Schusteff
 2012 Aaron Schusteff
|
|
Cordylanthus ramosus Bushy bird's beak
native
Annual herb 
2019 Steve Matson
2006 Steve Matson
2019 Matt Berger
|
|
Cornus sericea ssp. sericea American dogwood, Creek dogwood, Red osier dogwood
native
Shrub 
2003 Steve Matson
2019 Richard Spjut
2020 Doug Allshouse
|
|
Crataegus douglasii Black hawthorn, Douglas' hawthorn
native
Tree, Shrub 
2020 uelf
2008 Trent M. Draper
2015 John Malpas
|
|
Crepis acuminata Long leaved hawk's beard, Long leaved hawksbeard, Tall hawksbeard
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Crepis bakeri Baker's hawksbeard
native
Perennial herb 
2006 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Crepis modocensis Modoc hawksbeard
native
Perennial herb 
2005 Steve Matson
2011 Gerald Carr
2005 Steve Matson
|
|
Crepis monticola Mountain hawk's beard, Mountain hawksbeard
native
Perennial herb 
2023 Alaine Arslan
2023 Alaine Arslan
2020 Alaine Arslan
|
|
Crepis occidentalis Largeflower hawksbeard, Western hawk's beard, Western hawksbeard
native
Perennial herb 
2006 Gerald Carr
2006 Steve Matson
2006 Gerald Carr
|
|
Crocidium multicaule Common spring gold
native
Annual herb 
2016 jim richards
2019 Glenn Fine
2023 R.A. Chasey
|
|
Croton setigerus Turkey-mullein
native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2014 Richard Chasey
|
|
Crupina vulgaris Bearded creeper, Common crupina
• invasive non-native
Annual herb 
2023 Norm Macdonald
2012 Ramona Robison
2015 Daniel Lay
|
|
Crypsis alopecuroides Foxtail prickle grass, Foxtail pricklegrass
non-native
Annual grass 
2021 Dana York
2021 R.A. Chasey
2022 Donald Burk
|
|
Crypsis schoenoides Swamp grass, Swamp picklegrass, Swamp pricklegrass
non-native
Annual grass 
2023 Ron Vanderhoff
2018 Ron Vanderhoff
2019 Ron Vanderhoff
|
|
Cryptantha humilis Low oreocarya
native
Perennial herb 
2012 Steve Matson
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Cryptantha torreyana Torrey's cryptantha
native
Annual herb 
2011 Steve Matson
2021 Steve Laymon
2011 Steve Matson
|
|
Cryptogramma acrostichoides American parsely fern, American parsley fern, American rockbrake
native
Fern 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Cryptogramma cascadensis Cascade parsely fern, Cascade rockbrake
native
Fern 
2023 Dana York
2023 Dana York
2023 Dana York
|
|
Cuscuta californica var. papillosa Chaparral dodder, Papillate dodder
native
Annual herb, Vine (parasitic) 
2023 Keir Morse
2023 Keir Morse
2023 Keir Morse
|
|
Cusickiella douglasii Alkali cusickiella, Alkali draba
native
Perennial herb 
2009 Steve Matson
2008 Steve Matson
2009 Steve Matson
|
|
Cycladenia humilis var. humilis Cycladenia, Sacramento waxydogbane
native
Perennial herb 
2018 Joerg Lohse
2023 Ryan O'Dell
2018 Dee Shea Himes
|
|
Cymopterus terebinthinus var. californicus Pteryxia, Turpentine cymopterus
native
Perennial herb 
2005 Steve Matson
2006 Steve Matson
2012 Steve Matson
|
|
Cypripedium montanum Mountain lady's slipper
• rare native
Perennial herb (rhizomatous) 
2018 Timothy Boomer
2018 Timothy Boomer
2017 Julie Kierstead Nelson
|
|
Cystopteris fragilis Bladder fern, Brittle bladder fern, Brittle fern
native
Fern 
2020 Bob Sweatt
2021 Mike Russler
2023 Ken-ichi Ueda
|
|
Dactylis glomerata Orchard grass, Orchardgrass
• invasive non-native
Perennial grass 
2018 Jennifer Mo
2020 Jim Richards
2017 Gary McDonald
|
|
Damasonium californicum California damsonium
native
Perennial herb (aquatic) 
2018 Steve Matson
2019 Belinda Lo
2018 Steve Matson
|
|
Danthonia californica California oatgrass
native
Perennial grass 
2020 Sara Timby
2007 Steve Matson
2002 Bart and Susan Eisenberg
|
|
Danthonia unispicata One spiked oatgrass, Onespike danthonia, Onespike oatgrass
native
Perennial grass 
2005 Steve Matson
2015 Neal Kramer
2005 Steve Matson
|
|
Dasiphora fruticosa ssp. ?oribunda Shrubby cinquefoil
native
Shrub 
2020 Bob Sweatt
2014 Steve Matson
2014 Steve Matson
|
|
Delphinium andersonii Anderson larkspur, Anderson's larkspur
native
Perennial herb 
2008 Steve Matson
2007 Steve Matson
2008 Steve Matson
|
|
Delphinium decorum Coast larkspur, Coastal larkspur, Larkspur
native
Perennial herb 
2024 Mary Ann Machi
2024 Mary Ann Machi
2021 Mary Ann Machi
|
|
Delphinium depauperatum Dwarf larkspur, Few flowered larkspur, Slim larkspur
native
Perennial herb 
2022 Mike Russler
2023 Dana York
2022 Mike Russler
|
|
Delphinium nudicaule Canyon larkspur, Red or Orange Larkspur, Red larkspur
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2024 Mary Ann Machi
|
|
Delphinium nuttallianum Low larkspur, Meadow larkspur, Dwarf, Meadow, Slim or Sonne's Larkspur
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Deschampsia caespitosa California hairgrass, Tufted hair grass, Tufted hairgrass
native
Perennial grass 
2022 Justin Luong
2022 Dianne Lake
2022 Dianne Lake
|
|
Deschampsia danthonioides Annual hairgrass
native
Annual grass 
2003 Steve Matson
2003 Steve Matson
2018 Emily Allen
|
|
Deschampsia elongata Hairgrass, Slender hairgrass
native
Perennial grass 
2021 John Rawlings
2021 John Rawlings
2023 Robert Steers
|
|
Descurainia incana Mountain tansy mustard, Mountain tansymustard, Soft mountain tansy mustard
native
Perennial herb 
2020 Bob Sweatt
2004 Steve Matson
2014 Debra L. Cook
|
|
Descurainia incana ssp. incisa Mountain tansy mustard
native
Annual, Biennial herb  2018 Susan McDougall
 2018 Susan McDougall
|
|
Descurainia pinnata Western tansy mustard, Western tansymustard, Yellow tansy mustard
native
Annual herb 
2018 Nancy Hamlett
2022 Steve Matson
2022 Steve Matson
|
|
Descurainia sophia Flix weed, Herb sophia
• invasive non-native
Annual herb 
2014 Steve Matson
2021 R.A. Chasey
2014 Steve Matson
|
|
Dimeresia howellii Doublet
• rare native
Annual herb 
2022 Jordan Collins
2006 Steve Matson
2006 Steve Matson
|
|
Distichlis spicata Inland saltgrass, Salt grass, Saltgrass
native
Perennial grass 
2020 Matt Berger
2019 Ron Vanderhoff
2022 Donald Burk
|
|
Dodecatheon alpinum Alpine shooting star
native
Perennial herb 
2019 Cynthia Powell
2020 Bob Sweatt
2021 Mike Russler
|
|
Dodecatheon conjugens Bonneville shooting star
native
Perennial herb  2018 Susan McDougall
 2015 Daniel Lay (Dodecatheon conjugens)
 2016 Keir Morse (Primula conjugens var. viscida)
|
|
Dodecatheon jeffreyi Sierra shooting star
native
Perennial herb 
2021 Mike Russler
2019 Saskia Raether
2021 Julie A. Kierstead
|
|
Dodecatheon pulchellum Beautiful shooting star, Dark throat shooting star
• rare native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Downingia bacigalupii Bach's calicoflower, Bach's downingia
native
Annual herb 
2019 David Greenberger
2019 David Greenberger
2019 Leah Gardner
|
|
Downingia bicornuta Bristled downingia, Doublehorn calicoflower
native
Annual herb 
2019 David Greenberger
2019 Belinda Lo
2022 Steve Matson
|
|
Downingia bicornuta var. bicornuta Bristled downingia, Doublehorn calicoflower
native
Annual herb
2019 David Greenberger
2021 Alaine Arslan
2018 Cheryl Beyer
|
|
Downingia cuspidata Toothed calicoflower, Toothed downingia
native
Annual herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Downingia insignis Harlequin calicoflower, Harlequin downingia
native
Annual herb 
2019 David Greenberger
2023 Bill Kress
2019 Ramona Robison
|
|
Draba albertina Alaska whitlow grass, Alberta whitlow grass, Slender draba
native
Annual, Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Draba densifolia Dense leaved draba, Denseleaf draba
native
Perennial herb 
2008 Steve Matson
2020 Bob Sweatt
2008 Steve Matson
|
|
Draba paysonii var. treleasii Payson's draba
native
Perennial herb  1993 Gary A. Monroe
 2004 Steve Matson
|
|
Draba verna Spring draba, Whitlow grass, Whitlowgrass
non-native
Annual herb 
2011 Steve Matson
2004 Steve Matson
2016 Steve Matson
|
|
Drosera anglica English sundew, Long leaved sundew
• rare native
Perennial herb (carnivorous) 
2011 Dana York
2011 Dana York
2006 Steve Matson
|
|
Drosera rotundifolia Round leaved sundew, Roundleaf sundew
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Eatonella nivea White eatonella, White false tickhead
native
Annual herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass
non-native
Annual grass 
2016 Barbara Boethling
2022 R.A. Chasey
2008 Zoya Akulova
|
|
Eleocharis acicularis var. acicularis Needle spike rush, Needle spikerush
native
Perennial grasslike herb 
2017 Toni Corelli
2023 R.A. Chasey
2023 Robin Carter-Ervin
|
|
Eleocharis acicularis var. bella Beautiful spikerush
native
Perennial grasslike herb 
2021 R.A. Chasey
2003 Steve Matson
2013 Jake Ruygt
|
|
Eleocharis bella Beautiful spikerush
native
Perennial grasslike herb
2021 R.A. Chasey
2003 Steve Matson
2013 Jake Ruygt
|
|
Eleocharis engelmannii Engelmann's spikerush
native
Annual grasslike herb 
2023 David popp
2003 Steve Matson
2003 Steve Matson
|
|
Eleocharis palustris Common spikerush
native
Perennial grasslike herb 
2011 Gerald Carr
2011 Gerald Carr
2020 Ron Vanderhoff
|
|
Elymus caput-medusae Medusa head
• invasive non-native
Annual grass 
2023 Ron Vanderhoff
2019 Jennifer Mo
2011 Steve Matson
|
|
Elymus elymoides Bottlebrush squirreltail, Squirrel tail grass, Squirreltail
native
Perennial grass 
2022 Steve Matson
2012 Robert L. Carr
2012 Robert L. Carr
|
|
Elymus elymoides ssp. hordeoides Barley squirreltail
native
Perennial grass  2007 Steve Matson
 2007 Steve Matson
 2007 Steve Matson
|
|
Elymus glaucus Blue wildrye
native
Perennial grass 
2020 Denise Defreese
2019 Patrick Furtado
2018 Cynthia Powell
|
|
Elymus repens Quack grass
non-native
Perennial grass 2005 Louis-M. Landry
2005 Louis-M. Landry
2008 Keir Morse
|
|
Elymus trachycaulus ssp. trachycaulus Slender wheatgrass
native
Perennial grass 
2022 John Rawlings
2019 Ken Hickman
2019 Ken Hickman
|
|
Elytrigia intermedia ssp. intermedia Intermediate wheatgrass
non-native
Perennial grass 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Elytrigia repens Quack grass
non-native
Perennial grass 2005 Louis-M. Landry
2005 Louis-M. Landry
2008 Keir Morse
|
|
Enemion stipitatum Siskiyou false rue anemone
native
Perennial herb 
2021 Steve Laymon
2020 Steve Laymon
2008 Keir Morse
|
|
Epilobium anagallidifolium Alpine willowherb, Pimpernel willowherb
native
Perennial herb 
2019 David Greenberger
2016 Steve Matson
2016 Steve Matson
|
|
native
Perennial herb
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb
native
Annual herb 
2023 Mary Ann Machi
2019 Ramona Robison
2020 Ron Vanderhoff
|
|
Epilobium ciliatum ssp. ciliatum Fringed willowherb, Northern willow herb, Willow herb
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Epilobium ciliatum ssp. glandulosum Fringed willowherb, Glandular willowherb
native
Perennial herb 
2023 Steve Conger
2021 Mike Russler
2021 Mike Russler
|
|
Epilobium glaberrimum Glaucous willow herb, Glaucus willowherb, Smooth willowherb
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Epilobium halleanum Hall's willowherb
native
Perennial herb 
2005 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Epilobium minutum Chaparral willowherb, Desert willow herb, Little willowherb
native
Annual herb 
2017 Michael Mitchell
2021 R.A. Chasey
2019 Ken Lunders
|
|
Epilobium obcordatum Heart willowweed, Rockfringe
native
Perennial herb 
2022 richard mcneill
2017 Steve Matson
2019 Dee Shae Himes
|
|
Epilobium oregonense Oregon willowherb, Slimstem willowweed
native
Perennial herb 
2019 Bob Sweatt
2019 Bob Sweatt
2018 Susan McDougall
|
|
Epilobium pygmaeum Smooth boisduvalia
native
Annual herb 
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Epilobium torreyi Narrow boisduvalia, Narrow leaved boisduvalia, Torrey's willowherb
native
Annual herb 
2022 Mark Gary
2019 Ken Hickman
2022 R.A. Chasey
|
|
Equisetum arvense Common horsetail rush, Common horsetail, field horsetail, Field horsetail
native
Fern 
2022 Suzanne L. Weakley
2021 Cynthia Powell
2016 Cynthia Powell
|
|
Equisetum hyemale var. af?ne Scouringrush horsetail
native
Fern 
2021 Mary Gerbic
2021 Ron Vanderhoff
2016 David popp
|
|
Eremocarpus setigerus Turkey-mullein
native
Annual herb
2011 Steve Matson
2011 Steve Matson
2014 Richard Chasey
|
|
Ericameria bloomeri Bloomer's goldenbush, Goldenweed, Rabbitbush
native
Shrub 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Ericameria cuneata var. cuneata Cliff goldenbush, Rock goldenbush
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2015 Steve Matson
|
|
Ericameria discoidea Macronema goldenbush, Rayless goldenbush, Whitestem goldenbush
native
Shrub 
2003 Steve Matson
2003 Steve Matson
2016 Steve Matson
|
|
Ericameria greenei Greene's goldenbush, Greene's goldenweed
native
Shrub 
2009 Gerald Carr
2009 Gerald Carr
2020 R.A. Chasey
|
|
Ericameria nauseosa ssp. nauseosa var. speciosa Showy Rabbitbrush
native
Shrub 
2020 R.A. Chasey
2021 Mike Russler
2010 Gerald Carr
|
|
Erigeron acris ssp. debilis Northern daisy
• rare native
Perennial herb 
2023 Dana York
2023 Dana York
2023 Dana York
|
|
Erigeron austiniae Rebecca austin's fleabane
native
Perennial herb 
2014 Gerald Carr
2014 Gerald Carr
2014 Gerald Carr
|
|
Erigeron bloomeri var. bloomeri Scabland fleabane
native
Perennial herb 
2007 Steve Matson
2020 R.A. Chasey
2008 Steve Matson
|
|
Erigeron compositus Cut leaved daisy, Cutleaf daisy, Cut-leaf Fleabane
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2014 Steve Matson
|
|
Erigeron coulteri Coulter's daisy, Coulter's fleabane, Large mountain fleabane
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 John Rawlings
|
|
Erigeron eatonii var. plantagineus Eaton's daisy, Eaton's fleabane
native
Perennial herb 
2012 Gerald Carr
2012 Gerald Carr
2012 Gerald Carr
|
|
Erigeron elegantulus Blue dwarf fleabane, Volcanic daisy
• rare native
Perennial herb 
2022 Trevor Schalla
2018 Cynthia Powell
2018 Cynthia Powell
|
|
Erigeron foliosus Leafy daisy, Leafy fleabane
native
Perennial herb 
2022 Ron Vanderhoff
2022 Ryan O'Dell
2023 R.A. Chasey
|
|
Erigeron inornatus var. inornatus California rayless daisy, California rayless fleabane, Fleabane
native
Perennial herb 
2020 Bob Sweatt
2020 R.A. Chasey
2014 John Doyen
|
|
Erigeron linearis Desert yellow fleabane, Narrow leaved fleabane
native
Perennial herb 
2022 Bob Sweatt
2020 Susan McDougall
2014 Richard Spellenberg
|
|
Erigeron peregrinus ssp. callianthemus Wandering fleabane
native
Perennial herb 
2022 Dana York
2022 Dana York
2021 Mike Russler
|
|
Erigeron philadelphicus Philadelphia fleabane
native
Perennial herb 
2023 R.A. Chasey
2021 R.A. Chasey
2023 R.A. Chasey
|
|
Erigeron pumilus ssp. intermedius Shaggy fleabane
native
Perennial herb  1995 Saint Mary's College of California
 1995 Saint Mary's College of California
|
|
Erigeron strigosus Prairie fleabane
non-native
Annual, Perennial herb 
2015 Gerald Carr
2015 Gerald Carr
2006 Penn Martin II
|
|
Erigeron tener Slender fleabane
native
Perennial herb 
2018 Matt Berger
2018 Matt Berger
2018 Matt Berger
|
|
Eriogonum caespitosum Clumping buckwheat, Matted buckwheat
native
Perennial herb 
2009 Steve Matson
2016 Steve Matson
2008 Steve Matson
|
|
Eriogonum douglasii var. douglasii Douglas' buckwheat
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2004 Christopher L. Christie
|
|
Eriogonum elatum var. elatum Tall buckwheat, Tall woolly buckwheat
native
Perennial herb 
2008 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat, Parsnipflower buckwheat
• rare native
Perennial herb  2009 Steven Perry
 2009 Steven Perry
|
|
Eriogonum marifolium Marum leaved buckwheat, Marumleaf buckwheat
native
Shrub 
2015 Steve Matson
2019 Steve Matson
2015 Steve Matson
|
|
Eriogonum microthecum var. ambiguum Yellow-flowered wild buckwheat
native
Perennial herb 
2011 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Eriogonum microthecum var. laxi?orum Slender buckwheat
native
Perennial herb 
2011 Steve Matson
2021 Bob Sweatt
2019 Matt Berger
|
|
Eriogonum nudum var. deductum Naked buckwheat
native
Shrub 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Eriogonum nudum var. nudum Naked buckwheat, Naked Wild Buckwheat, Nude buckwheat
native
Shrub 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Eriogonum nudum var. oblongifolium Naked buckwheat, Oblong leaved buckwheat
native
Shrub 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Eriogonum nudum var. pubi?orum Naked buckwheat, Nude buckwheat
native
Shrub 
2011 Steve Matson
2014 Steve Matson
2008 Steve Matson
|
|
Eriogonum nudum var. westonii Weston's buckwheat
native
Shrub 
2022 Steve Matson
2022 Steve Matson
2011 Steve Matson
|
|
Eriogonum ovalifolium var. nivale Cushion buckwheat
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2022 R.A. Chasey
|
|
Eriogonum ovalifolium var. ovalifolium Cushion buckwheat
native
Perennial herb 
2017 Tim Messick
2005 Steve Matson
2005 Steve Matson
|
|
Eriogonum ovalifolium var. purpureum Purple cushion buckwheat
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Eriogonum polyanthum Many flowered sulfur flower
native
Perennial herb 
2019 Susan McDougall
2020 R.A. Chasey
2019 Susan McDougall
|
|
Eriogonum prociduum Prostrate buckwheat
• rare native
Perennial herb  2010 Steve Matson
 2010 Steve Matson
 2001 John Game
|
|
Eriogonum pyrolifolium Shasta buckwheat
native
Perennial herb, Shrub 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Eriogonum spergulinum var. reddingianum Redding buckwheat, Spurry buckwheat, Redding's Wild Buckwheat
native
Annual herb 
2014 Steve Matson
2020 Steve Matson
2019 Matt Berger
|
|
Eriogonum sphaerocephalum var. halimioides Rock buckwheat, Round headed buckwheat
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Eriogonum sphaerocephalum var. sphaerocephalum Rock buckwheat, Round headed buckwheat
native
Perennial herb  2010 Steve Matson
 2014 John Doyen
 2014 John Doyen
|
|
Eriogonum strictum ssp. proliferum var. anserinum Blue mountain buckwheat
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2006 Steve Matson
|
|
Eriogonum strictum ssp. proliferum var. proliferum Greene's buckwheat
• rare native
Perennial herb 
2017 Steve Matson
2010 Julie A. Kierstead
2020 R.A. Chasey
|
|
Eriogonum umbellatum var. covillei Coville's sulphur buckwheat, Sulphur flower buckwheat
native
Perennial herb 
2023 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Eriogonum umbellatum var. dichrocephalum Sulphur buckwheat, Sulphur flower buckwheat
native
Perennial herb 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Eriogonum umbellatum var. glaberrimum Green buckwheat
• rare native
Perennial herb  2007 F. Gauna
 2007 F. Gauna
|
|
Eriogonum umbellatum var. modocense Sulphur flower buckwheat, Modoc Sulphur Flower
native
Perennial herb 
2023 Dana York
2023 Dana York
2019 David Greenberger
|
|
Eriogonum umbellatum var. nevadense Nevada buckwheat, Sierra sulfur flower, Sulphur flower buckwheat
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Eriogonum ursinum Bear buckwheat, Bear valley buckwheat
native
Perennial herb 
2019 Julie A. Kierstead
2019 Bob Sweatt
2018 Matt Berger
|
|
Eriogonum vimineum Wicker buckwheat, Wicker stemmed eriogonum, Wickerstem buckwheat
native
Annual herb 
2019 David Greenberger
2019 David popp
2008 Keir Morse
|
|
Eriophorum gracile Cottongrass, Slender cotton grass, Slender cottongrass
• rare native
Perennial grasslike herb 
2006 Steve Matson
2018 Scott Yarger
2020 Bob Sweatt
|
|
Eriophyllum lanatum Common woolly sunflower, Common woollysunflower, Wooly sunflower
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2020 Steve Matson
|
|
Eriophyllum lanatum var. achillaeoides Yarrow leaved woolly sunflower
native
Perennial herb 
2006 Steve Matson
2008 Steve Matson
2006 Steve Matson
|
|
Eriophyllum lanatum var. croceum Common woolly sunflower, Sierra woolly sunflower
native
Perennial herb 
2022 Mike Russler
2014 Mary Merriman
2022 Mike Russler
|
|
Eriophyllum lanatum var. integrifolium Common woolly sunflower, Oregon sunshine
native
Perennial herb 
2007 Steve Matson
2017 Adam Chasey
2012 Steve Matson
|
|
Eriophyllum lanatum var. lanceolatum Common woolly sunflower, Lance leaved woolly sunflower
native
Perennial herb 
2020 Joey Santore
2020 R.A. Chasey
2020 R.A. Chasey
|
|
Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree
non-native
Annual herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill
• invasive non-native
Annual herb 
2022 Steve Matson
2008 Steve Matson
2022 Steve Matson
|
|
Eryngium alismifolium Alisma leaved coyote thistle, Coyote thistle, Modoc eryngo
native
Perennial herb 
2019 David Greenberger
2015 David popp
2011 Steve Matson
|
|
Eryngium articulatum Beethistle, Coyote thistle
native
Perennial herb 
2021 John Game
2015 Steve Matson
2015 Steve Matson
|
|
Eryngium mathiasiae Mathias' button celery, Mathias' eryngo
native
Perennial herb  2016 John Doyen
 2000 Robert E. Preston, Ph.D.
 2016 John Doyen
|
|
Erysimum capitatum var. capitatum Sanddune wallflower
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Eschscholzia californica California poppy
native
Annual, Perennial herb 
2019 Dee Shea Himes
2021 Ron Vanderhoff
2019 Amy Rapport
|
|
Euphorbia crenulata Chinese caps, Chinesecaps
native
Annual, Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Eurybia integrifolia Thickstem aster
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2012 Steve Matson
|
|
Euthamia occidentalis Western flat topped goldenrod, Western goldenrod, Western goldentop
native
Perennial herb 
2021 Steve Matson
2018 Ron Vanderhoff
2021 R.A. Chasey
|
|
Festuca idahoënsis Blue bunchgrass, Blue fescue, Idaho fescue
native
Perennial grass 
2016 Brett Dean
2020 Paul Aigner
2016 Andrew Longman
|
|
Festuca rubra Red fescue
native
Perennial grass 
2012 Ove Anderson
2022 John Rawlings
2018 Alexandra Kookootsedes
|
|
Floerkea proserpinacoides False mermaidweed
native
Annual herb  2011 Aaron Schusteff
 2011 RT Hawke
 2012 Gary A. Monroe
|
|
Fragaria virginiana Mountain strawberry, Scarlet strawberry, Virginia strawberry
native
Perennial herb 
2020 Bob Sweatt
2005 George Rembert
2017 Rebecca Schoenenberger
|
|
Frasera albicaulis var. albicaulis Whitestem frasera
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Frasera albicaulis var. nitida Whitestem frasera
native
Perennial herb
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Frasera speciosa Monument plant
native
Perennial herb 
2019 Zachary Snider
2012 Gerald Carr
2015 Cynthia Powell
|
|
Fraxinus latifolia Oregon ash
native
Tree 
2021 Robert Whitaker
2021 Richard Spjut
2012 Terrence Gosliner
|
|
Fritillaria atropurpurea Mountain fritillary, Purple fritillary, Spotted fritillary
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2011 Steve Matson
|
|
Fritillaria pudica Gold bell, Yellow fritillary
native
Perennial herb 
2020 Zane Walker
2019 Diane Rose
2020 Bob Sweatt
|
|
Fritillaria recurva Scarlet fritillary
native
Perennial herb 
2020 Steve Conger
2018 Zane Walker
2022 John L. Thompson
|
|
Galium aparine Cleavers, Common bedstraw, Goose grass
native
Annual herb 
2020 Ron Vanderhoff
2005 Steve Matson
2020 Ron Vanderhoff
|
|
Galium bifolium Low mountain bedstraw, Twinleaf bedstraw
native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Galium boreale Northern bedstraw
native
Perennial herb  2015 Barry Breckling
 2010 Barry Breckling
 2012 Trent M. Draper
|
|
Galium glabrescens ssp. modocense Modoc bedstraw
• rare native
Perennial herb  Gary Schoolcraft and CNPS
 Gary Schoolcraft and CNPS
|
|
Galium murale Tiny bedstraw, Yellow wall bedstraw
non-native
Annual herb 
2022 R.A. Chasey
2021 Cameron Chabre
2014 Bryan Derr
|
|
Galium serpenticum ssp. warnerense Warner mountains bedstraw, Warner mtns. bedstraw
• rare native
Perennial herb (rhizomatous) 
2018 Scot Loring
2018 Scot Loring
2018 Scot Loring
|
|
Garrya fremontii Bearbrush, Fremont's silk tassel
native
Shrub 
2023 R.A. Chasey
2020 Belinda Lo
2020 Rebecca Schoenenberger
|
|
Gayophytum diffusum ssp. parvi?orum Diffuse gayophytum, Gayophytum, Spreading groundsmoke
native
Annual herb 
2019 Diane Etchison
2011 BOB CASE
2019 Diane Etchison
|
|
Gayophytum humile Dwarf groundsmoke, Gayophytum, Low gayophytum
native
Annual herb 
2022 Mike Russler
2022 Mike Russler
2023 Mike Russler
|
|
Gentianopsis simplex Hiker's fringed gentian, One flowered fringed gentian, Oneflower fringed gentian
native
Annual herb 
2022 Dana York
2023 Alaine Arslan
2022 Mike Russler
|
|
Geranium richardsonii Richardson's geranium
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2018 Steve Matson
|
|
Geranium viscosissimum Sticky geranium, Sticky purple geranium
native
Perennial herb 
2019 Susan McDougall
2019 Susan McDougall
2019 Susan McDougall
|
|
Geum aleppicum Aleppo avens, Yellow avens
• rare native
Perennial herb  2010 Louis-M. Landry
 2008 Louis-M. Landry
 2010 Louis-M. Landry
|
|
Geum macrophyllum Large leaved avens, Largeleaf avens
native
Perennial herb 
2022 Mike Russler
2023 John Malpas
2022 Mike Russler
|
|
Gilia capitata Blue field gilia, Bluehead gilia
native
Annual herb 
2011 Gerald Carr
2022 Ron Vanderhoff
2011 Gerald Carr
|
|
Githopsis specularioides Common bluecup, Venus' looking glass
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2021 Mike Russler
|
|
Glyceria borealis Northern mannagrass, Small floating mannagrass
native
Perennial grass  2008 Louis-M. Landry
 2008 Louis-M. Landry
 2008 Louis-M. Landry
|
|
Glyceria elata Fowl mannagrass, Tall mannagrass
native
Perennial grass 
2008 Steve Matson
2008 Steve Matson
2020 Susan McDougall
|
|
Glyceria striata Fowl mannagrass
native
Perennial grass 
2007 Keir Morse
2023 Mary Merriman
2007 Keir Morse
|
|
Gnaphalium palustre Lowland cudweed, Western marsh cudweed
native
Annual herb 
2019 Ron Vanderhoff
2005 Steve Matson
2019 Ron Vanderhoff
|
|
Gnaphalium stramineum Cottonbatting plant
native
Perennial herb 
2017 Gary McDonald
2017 Gary McDonald
2017 Gary McDonald
|
|
Goodyera oblongifolia Rattlesnake plantain, Western rattlesnake plantain
native
Perennial herb 
2020 Bob Sweatt
2019 Glenn Fine
2019 Julie A. Kierstead
|
|
Gratiola ebracteata Bractless hedge hyssop, Common hedge hyssop
native
Annual herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Gratiola heterosepala Boggs lake hedge hyssop
• rare native
Annual herb  2004 Carol W. Witham
 2004 Carol W. Witham
 2010 Doug Wirtz
|
|
Gratiola neglecta Clammy hedge hyssop, Clammy hedgehyssop
native
Annual herb 
2009 Gerald Carr
2009 Gerald Carr
2009 Gerald Carr
|
|
Grindelia nana Idaho gumweed, Idaho resinweed
native
Perennial herb  2002 Steve Matson
 2002 Steve Matson
|
|
Hackelia californica California stickseed
native
Perennial herb 
2022 Bob Sweatt
2014 Jim Moore
2022 Bob Sweatt
|
|
Hackelia cusickii Cusick stickweed, Cusick's stickseed
• rare native
Perennial herb  2004 Robert E. Preston, Ph.D.
 2011 Dean Wm. Taylor, Ph.D.
|
|
Hackelia micrantha Jessica sticktight, Jessica's stickseed, Small flowered stickseed
native
Perennial herb 
2017 Steve Matson
2004 Steve Matson
2017 Steve Matson
|
|
Hackelia velutina Velvet stickseed, Velvety stickseed
native
Perennial herb 
2013 James Gonsman
2020 Bob Sweatt
2013 James Gonsman
|
|
Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower
native
Annual herb 
2019 Bob Case
2019 Bob Case
2021 Mike Russler
|
|
Heliotropium europaeum European heliotrope
non-native
Annual herb 
2021 Tracy J Wyckoff
2022 Ramona Robison
2021 David popp
|
|
Hemizonella minima Opposite leaved tarweed
native
Annual herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Heracleum maximum Common cow parsnip
native
Perennial herb 
2019 Bob Sweatt
2008 Neal Kramer
2021 Julie A. Kierstead
|
|
Hesperochiron californicus California hesperochiron
native
Perennial herb 
2020 Bob Sweatt
2018 David popp
2020 Bob Sweatt
|
|
Hesperochiron pumilus Dwarf hesperochiron
native
Perennial herb 
2023 Kobi Mills
2021 Dana York
2020 Julie A. Kierstead
|
|
Hesperostipa comata ssp. comata Needle & thread grass
native
Perennial grass 
2022 Julie A. Kierstead
2021 R.A. Chasey
2015 Steve Matson
|
|
Heuchera cylindrica var. alpina Roundleaf alumroot, Alpine alumroot
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Heuchera micrantha Alum root, Crevice alumroot
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Hieracium horridum Prickly hawkweed, Shaggy hawkweed
native
Perennial herb 
2022 Cynthia Powell
2022 Mike Russler
2020 Bob Sweatt
|
|
Hieracium scouleri Hounds tongue hawkweed, Houndstongue hawkweed, Scouler's hawkweed
native
Perennial herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Hierochloë odorata Vanilla grass
• rare native
Perennial grass (rhizomatous) 
2018 Matt Berger
2014 Zoya Akulova
2006 Louis-M. Landry
|
|
Hippuris vulgaris Common mare's tail, Common mares tail, Mare's tail
native
Perennial herb (aquatic) 
2019 Bob Sweatt
2018 Isaac Chellman
2008 Dean Wm. Taylor, Ph.D.
|
|
Holodiscus discolor Cream bush, Ocean spray, Oceanspray
native
Shrub 
2017 Steve Matson
2017 Steve Matson
2022 Steve Matson
|
|
Holodiscus microphyllus var. glabrescens Rock spiraea
native
Shrub 
2018 David popp
2023 Jamie Spielmann
2023 Jamie Spielmann
|
|
Holosteum umbellatum Jagged chickweed
non-native
Annual herb 
2007 Gerald Carr
2007 Gerald Carr
2007 Gerald Carr
|
|
Hordeum brachyantherum Meadow barley
native
Perennial grass 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Hordeum jubatum Fox tail barley, Foxtail barley, Squirreltail barley
native
Perennial grass 
2019 Rachelle Gray
2009 Barry Rice
2009 Zoya Akulova
|
|
Horkelia fusca ssp. capitata Tawny horkelia
native
Perennial herb 
2018 Gerald Carr
2018 Gerald Carr
2018 Gerald Carr
|
|
Horkelia fusca ssp. parvi?ora Dusky horkelia, Pinewoods horkelia, Tawny horkelia
native
Perennial herb
2018 Gerald Carr
2019 Matt Berger
2019 Matt Berger
|
|
Hulsea nana Dwarf alpinegold, Dwarf hulsea
• rare native
Perennial herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Hydrophyllum capitatum var. alpinum Alpine breeches
native
Perennial herb 
2022 Charles Russell
2020 Bob Sweatt
2023 Paul Watts
|
|
Hymenoxys hoopesii Owl's claws
native
Perennial herb 
2003 Steve Matson
2021 Steve Matson
2003 Steve Matson
|
|
Hypericum anagalloides Creeping st. john's wort, Tinker's penny
native
Annual, Perennial herb 
2019 Bob Sweatt
2020 Joaquin Hale
2021 Mike Russler
|
|
Hypericum formosum var. scouleri Scouler's St John's wort
native
Perennial herb 
2021 Julie A. Kierstead
2022 Steve Matson
2019 Julie Kierstead Nelson
|
|
Hypericum perforatum Common st. johnswort, Klamath weed, Klamathweed
• invasive non-native
Perennial herb 
2020 Bob Sweatt
2018 stephen rosenthal
2020 Bob Sweatt
|
|
Hypericum scouleri ssp. scouleri Scouler's St John's wort
native
Perennial herb
2021 Julie A. Kierstead
2022 Steve Matson
2019 Julie Kierstead Nelson
|
|
Idahoa scapigera Oldstem idahoa
native
Annual herb 
2021 David popp
2010 Norman Jensen
2006 Keir Morse
|
|
Iliamna bakeri Baker's globe mallow, Baker's wild hollyhock
• rare native
Perennial herb 
2020 Steve Laymon
2019 Matt Berger
2018 Matt Berger
|
|
Ionactis alpina Lava aster
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Ipomopsis aggregata ssp. formosissima Scarlet gilia
native
Perennial herb 
2019 Anna Sereno
2019 Anna Sereno
2020 R.A. Chasey
|
|
Ipomopsis congesta ssp. congesta Ball headed gilia, Ballhead ipomopsis
native
Perennial herb 
2018 Matt Berger
2018 Matt Berger
2018 Matt Berger
|
|
Ipomopsis congesta ssp. montana Ball headed ipomopsis, Ballhead ipomopsis, Many flowered gilia
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2023 Jamie Spielmann
|
|
Iris missouriensis Rocky mountain iris, Western blue flag
native
Perennial herb 
Geoff Burleigh
2020 Mitchell Coleman
2019 Bob Sweatt
|
|
Isatis tinctoria Dyer's woad, Dyers woad
• invasive non-native
Biennial, Perennial herb 
2019 Dana York
2019 Julie Kierstead Nelson
2021 Steve Matson
|
|
Isoëtes howellii Howell's quillwort, Quillwort
native
2022 Ken-ichi Ueda
2022 Ken-ichi Ueda
2023 R.A. Chasey
|
|
Isopyrum stipitatum Siskiyou false rue anemone
native
Perennial herb
2021 Steve Laymon
2020 Steve Laymon
2008 Keir Morse
|
|
Iva axillaris Povertyweed
native
Perennial herb 
2019 David Greenberger
2023 R.A. Chasey
2020 Sara Timby
|
|
Iva axillaris ssp. robustior Povertyweed
native
Perennial herb
2019 David Greenberger
2023 R.A. Chasey
2020 Sara Timby
|
|
Ivesia baileyi var. beneolens Bailey's ivesia, Owyhee ivesia
• rare native
Perennial herb 
2016 Gerald Carr
2016 Gerald Carr
2016 Gerald Carr
|
|
Ivesia gordonii Alpine ivesia, Gordon's ivesia
native
Perennial herb 
2014 Steve Matson
2019 R.A. Chasey
2014 Steve Matson
|
|
Ivesia paniculata Ash creek ivesia, Ash creek mousetail
• rare native
Perennial herb  2007 F. Gauna
 2007 F. Gauna
 2007 F. Gauna
|
|
Ivesia shockleyi var. shockleyi Shockley's ivesia, Sky mousetail
native
Perennial herb 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Juncus arcticus ssp. littoralis Baltic rush, Wire rush
native
Perennial grasslike herb 
2015 Steve Matson
2015 Steve Matson
2019 Bonnie Nickel
|
|
Juncus balticus Baltic rush, Wire rush
native
Perennial grasslike herb
2015 Steve Matson
2015 Steve Matson
2019 Bonnie Nickel
|
|
Juncus bufonius var. occidentalis Round fruited toad rush, Western toad rush
native
Perennial grasslike herb  2004 Steve Matson
|
|
Juncus confusus Colorado rush
native
Perennial grasslike herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Juncus covillei Coville's rush
native
Perennial grasslike herb 
2013 Dana York
2013 Dana York
2013 Jake Ruygt
|
|
Juncus ensifolius Sword leaved rush, Swordleaf rush, Three stamened rush
native
Perennial grasslike herb 
2016 Phil Johnson
2018 David popp
2009 Julie A. Kierstead
|
|
Juncus mertensianus Merten's rush, Mertens' rush
native
Perennial grasslike herb 
2016 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Juncus nevadensis Sierra rush
native
Perennial grasslike herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Juncus orthophyllus Straight leaved rush, Straightleaf rush
native
Perennial grasslike herb 
2019 David Greenberger
2016 Steve Matson
2016 Steve Matson
|
|
Juncus parryi Parry's rush
native
Perennial grasslike herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Juncus saximontanus Rocky mountain rush
native
Perennial grasslike herb  2005 Steve Matson
 2005 Steve Matson
|
|
Juncus tenuis Poverty rush, Slender rush
native
Perennial grasslike herb 
2020 Peter Warner
2008 Keir Morse
2020 Peter Warner
|
|
Juniperus communis Common juniper, Dwarf juniper
native
Shrub 
2019 Bob Sweatt
2020 Donald Burk
2010 Louis-M. Landry
|
|
Juniperus occidentalis var. australis Sierra juniper
native
Tree 
2016 Brett Dean
2021 Scott Yarger
1972 Dean Wm. Taylor
|
|
Juniperus occidentalis var. occidentalis Western juniper
native
Tree 
2013 Michael Kauffmann
2013 Michael Kauffmann
2016 mark kircher
|
|
Kalmia microphylla Mountain laurel, Bog laurel
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Kalmia polifolia Mountain laurel, Bog laurel
native
Shrub
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Kelloggia galioides Milk kelloggia
native
Perennial herb 
2003 Steve Matson
2020 Bob Sweatt
2019 Bob Sweatt
|
|
Koeleria macrantha June grass, Prairie junegrass
native
Perennial grass 
2023 Helen Hancock
2015 Steve Matson
2015 Steve Matson
|
|
Lactuca serriola Prickly lettuce, Prickly wild lettuce
• invasive non-native
Annual herb 
2017 Gary McDonald
2017 Gary McDonald
2017 Gary McDonald
|
|
Lagophylla ramosissima ssp. ramosissima Branched lagophylla, Common hareleaf
native
Annual herb 
2019 Diane Etchison
2021 Dee Shea Himes
2020 Ken Hickman
|
|
Lathyrus lanszwertii var. brownii Brown's brush pea
native
Perennial herb 
2019 Julie Kierstead Nelson
2017 David popp
1992 Gary A. Monroe
|
|
Lathyrus lanszwertii var. lanszwertii Lanszwert's pea, Nevada pea
native
Perennial herb 
2005 Steve Matson
2008 Gary A. Monroe
2005 Steve Matson
|
|
Lathyrus nevadensis ssp. nevadensis Sierra nevada pea, Sierra pea
native
Perennial herb 
2019 Susan McDougall
2022 Ryan O'Dell
2019 Susan McDougall
|
|
Lathyrus rigidus Rigid pea, Stiff pea
• rare native
Perennial herb  2008 Christopher L. Christie
 2008 Christopher L. Christie
|
|
Ledum glandulosum Western labrador tea
native
Shrub 
2005 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Lepidium campestre Cow cress, English pepper grass, Field pepper grass
non-native
Annual, Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Lepidium perfoliatum Clasping pepperweed, Klamath pepper grass, Shield cress
non-native
Annual herb 
2020 Bob Sweatt
2017 Barbara Boethling
2009 Steve Matson
|
|
Lepidium virginicum Virginia pepperweed, Wild pepper grass
native
Annual herb 
2020 David Greenberger
2020 Aaron Echols
2021 Jacob Smith
|
|
Leptodactylon pungens Granite prickly phlox
native
Shrub 
2021 Steve Matson
2021 Steve Matson
2023 Mike Russler
|
|
Leptosiphon ciliatus Whiskerbrush
native
Annual herb 
2020 Bob Sweatt
2020 Bob Sweatt
2018 Glenn Fine
|
|
Leptosiphon harknessii Harkness' flaxflower
native
Annual herb 
2020 Bob Sweatt
2020 Bob Sweatt
2017 Cynthia Powell
|
|
Leptosiphon nuttallii ssp. nuttallii Nuttall's linanthus
native
Perennial herb 
2023 Steve Conger
2023 Steve Conger
2019 Richard Spjut
|
|
Leucanthemum vulgare Oxe eye daisy, Oxeye daisy
• invasive non-native
Perennial herb 
2020 Kim Cabrera
2019 Julian Geoghegan
2017 James Gonsman
|
|
Leucocrinum montanum Common starlily, Sand lily
native
Perennial herb 
2020 Bob Sweatt
2021 Dana York
2021 Dana York
|
|
Leucophysalis nana Dwarf chamaesaracha, Dwarf chamaesarachia
native
Perennial herb
2019 Bob Case
2005 Steve Matson
2022 Bob Sweatt
|
|
Lewisia nevadensis Nevada bitter root, Nevada lewisia, Sierra lewisia
native
Perennial herb 
2020 Bob Sweatt
2022 Mary Ann Machi
2022 Mary Ann Machi
|
|
Lewisia pygmaea Alpine lewisia, Pigmy bitter root
native
Perennial herb 
2020 Bob Sweatt
2019 Bob Sweatt
2020 Bob Sweatt
|
|
Lewisia rediviva Bitter root
native
Perennial herb 
2020 Matt Berger
2023 Steve Conger
2018 Mitchell Coleman
|
|
Lewisia triphylla Three leafed lewisia, Three leaved lewisia, Threeleaf lewisia
native
Perennial herb 
2020 Bob Sweatt
2022 Mike Russler
2023 Mike Russler
|
|
Leymus cinereus Great basin wild rye
native
Perennial grass 
2020 John Rawlings
2008 Steve Matson
2008 Steve Matson
|
|
Libocedrus decurrens Incense cedar, Post cedar, White cedar
native
Tree
2018 Julie Kierstead Nelson
2018 David popp
2018 Richard Spjut
|
|
Ligusticum grayi Gray's licorice root, Gray's lovage, Gray's wild lovage
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Lilium pardalinum ssp. shastense Shasta lily
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Lilium washingtonianum ssp. washingtonianum Typical washington lily
native
Perennial herb 
2019 David Greenberger
2006 Richard Spjut
2019 Matt Berger
|
|
Limosella aquatica Northern mudwort, Water mudwort
native
Annual herb (aquatic) 
2020 Bob Sweatt
2020 Bob Sweatt
2005 Steve Matson
|
|
Linanthus nuttallii ssp. nuttallii Nuttall's linanthus
native
Perennial herb
2023 Steve Conger
2023 Steve Conger
2019 Richard Spjut
|
|
Linanthus pungens Granite prickly phlox
native
Shrub
2021 Steve Matson
2021 Steve Matson
2023 Mike Russler
|
|
Linaria dalmatica ssp. dalmatica Dalmatian toadflax
• invasive non-native
Perennial herb 
2021 Dennis Diaz
2016 Phil Zortman
2019 Caleb Cole
|
|
Linaria genistifolia ssp. dalmatica Dalmatian toadflax
• invasive non-native
Perennial herb
2021 Dennis Diaz
2016 Phil Zortman
2019 Caleb Cole
|
|
Linum lewisii var. lewisii Lewis' flax, Prairie flax
native
Perennial herb 
2023 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Lithophragma glabrum Bulbed woodland star, Bulbous woodland star, Bulbous woodlandstar
native
Perennial herb 
2022 Dana York
2005 Steve Matson
2020 Bob Sweatt
|
|
Lithophragma tenellum Slender woodland star, Slender woodlandstar, Woodland star
native
Perennial herb 
2018 Mary Conway
2018 Mary Conway
2019 Adam Chasey
|
|
Lithospermum californicum California gromwell, California stoneseed, Gromwell
native
Perennial herb 
2019 David Greenberger
2022 Ryan O'Dell
2018 David popp
|
|
Lithospermum ruderale Columbia puccoon, Western gromwell, Western stoneseed
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Lomatium bicolor var. leptocarpum Slender fruited lomatium, Wasatch desertparsley
native
Perennial herb  2013 Steve Matson
 2013 Steve Matson
 2013 Steve Matson
|
|
Lomatium canbyi Canby's biscuitroot, Canby's lomatium
• rare native
Perennial herb  2011 Mary Winter
 2011 Mary Winter
 2002 Gary A. Monroe
|
|
Lomatium dissectum var. multi?dum Fern leaved lomatium, Fernleaf biscuitroot
native
Perennial herb 
2020 Bob Sweatt
2019 Bob Sweatt
2020 Bob Sweatt
|
|
Lomatium foeniculaceum Desert biscuitroot, Fennel leaved lomatium
native
Perennial herb 
2019 Matt Berger
2023 richard mcneill
2023 richard mcneill
|
|
Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium
• rare native
Perennial herb 
2023 Ryan O'Dell
2011 Robert Sivinski
2010 Bill Harnach
|
|
Lomatium grayi Gray's lomatium
• rare native
Perennial herb  2008 Trent M. Draper
 2008 Trent M. Draper
 2008 Trent M. Draper
|
|
Lomatium macrocarpum Bigseed biscuitroot, Large fruited lomatium
native
Perennial herb 
2018 Gary McDonald
2022 John Rawlings
2013 Gary McDonald
|
|
Lomatium nevadense var. nevadense Nevada biscuitroot, Nevada lomatium
native
Perennial herb 
2021 Donald Burk
2005 Steve Matson
2005 Steve Matson
|
|
Lomatium nevadense var. parishii Parish's biscuitroot, Parish's lomatium
native
Perennial herb 
2023 richard mcneill
2021 R.A. Chasey
2023 richard mcneill
|
|
Lomatium nudicaule Barestem biscuitroot, Pestle lomatium, Pestle parsnip
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2022 Helen Hancock
|
|
Lomatium piperi Indian biscuitroot, Piper's lomatium
native
Perennial herb  2011 Vernon Smith
 2009 John Dittes
|
|
Lomatium ravenii Lassen parsley, Raven's lomatium
• rare native
Perennial herb 
2012 Gerald Carr
2012 Gerald Carr
2012 Gerald Carr
|
|
Lomatium triternatum Lewis' lomatium, Lewis's lomatium, Lomatium
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lomatium triternatum var. triternatum Lewis' lomatium, Nineleaf biscuitroot
native
Perennial herb
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel
native
Perennial herb 
2006 Steve Matson
2019 Eliezer Margolis
2015 James Gonsman
|
|
Lomatium vaginatum Broadsheath desertparsley, Sheathed lomatium
native
Perennial herb 
2022 Ryan O'Dell
2013 Jake Ruygt
2008 Sean B. Smith
|
|
Lonicera conjugialis Double honeysuckle, Purpleflower honeysuckle
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Lonicera involucrata var. involucrata Twinberry honeysuckle
native
Shrub 
2019 Chico Hiking Association
2021 Mike Russler
2011 Ruth Gravanis
|
|
Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil
• invasive non-native
Perennial herb 
2005 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Lotus denticulatus Toothed lotus
native
Annual herb 
2017 Gerald Carr
2017 Gerald Carr
2017 Gerald Carr
|
|
Lotus micranthus Hill lotus
native
Annual herb 
2008 Steve Matson
2005 Steve Matson
2008 Steve Matson
|
|
Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil, American trefoil, Spanish lotus
native
Annual herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Lotus wrangelianus Wrangel lotus
native
Annual herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Lupinus arbustus Long spurred lupine, Longspur lupine
native
Perennial herb 
2008 Steve Matson
2020 Belinda Lo
2008 Steve Matson
|
|
Lupinus argenteus ssp. argenteus Silvery lupine
native
Perennial herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Lupinus argenteus var. heteranthus Silvery lupine
native
Perennial herb 
2022 Steve Woodward
2008 Steve Matson
2022 Steve Woodward
|
|
Lupinus caudatus ssp. caudatus Silvery lupine
native
Perennial herb
2022 Steve Woodward
2008 Steve Matson
2022 Steve Woodward
|
|
Lupinus confertus Clustered tidy lupine
native
Perennial herb 
2013 Steve Matson
2013 Steve Matson
2013 Steve Matson
|
|
Lupinus latifolius ssp. latifolius Broad leaf lupine
native
Perennial herb 
2021 John Rawlings
2020 Paul Aigner
2021 Steve Matson
|
|
Lupinus latifolius ssp. viridifolius Green leaf lupine
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Lupinus latifolius ssp. viridifolius var. barbatus Green leaf lupine
native
Perennial herb
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Lupinus lepidus var. confertus Clustered tidy lupine
native
Perennial herb
2013 Steve Matson
2013 Steve Matson
2013 Steve Matson
|
|
Lupinus lepidus var. lobbii Lobb's lupine, Lobb's tidy lupine
native
Perennial herb 
2005 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Lupinus lepidus var. sellulus Dwarf tidy lupine, Stool lupine, Torrey's lupine
native
Perennial herb 
2002 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lupinus polyphyllus var. burkei Burke's lupine, Meadow lupine
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Lupinus sellulus ssp. sellulus Dwarf tidy lupine, Stool lupine, Torrey's lupine
native
Perennial herb
2002 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lupinus sellulus ssp. sellulus var. lobbii Lobb's lupine, Lobb's tidy lupine
native
Perennial herb
2005 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Luzula comosa Common wood rush, Hairy wood rush, Pacific woodrush
native
Perennial grasslike herb 
2019 Matt Berger
2021 Steve Matson
2021 Steve Matson
|
|
Luzula subcongesta Donner wood rush, Donner woodrush
native
Perennial grasslike herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Lygodesmia spinosa Thorn skeletonweed
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Lythrum tribracteatum Three bracted loosestrife, Threebract loosestrife
non-native
Annual herb 
2023 R.A. Chasey
2019 Ramona Robison
2023 R.A. Chasey
|
|
Machaeranthera canescens ssp. canescens Hoary aster
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
native
Perennial herb 
2008 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Madia citriodora Lemon scented tarweed, Lemonscented madia
native
Annual herb 
2019 Bob Sweatt
2019 Bob Sweatt
2019 Bob Sweatt
|
|
Madia glomerata Mountain tarweed
native
Annual herb 
2023 Mike Russler
2008 Steve Matson
2008 Steve Matson
|
|
Madia gracilis Grassy tarweed, Gumweed madia, Slender tarweed
native
Annual herb 
2022 Mike Russler
2021 Amber Bedgood
2019 Ron Vanderhoff
|
|
Madia minima Opposite leaved tarweed
native
Annual herb
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Mahonia aquifolium Mountain grape, Mountaingrape, Oregon grape
native
Shrub 
2022 Cara Wilcox
2021 Mike Russler
2021 Mike Russler
|
|
Mahonia nervosa Cascades oregon grape, Oregongrape
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Mahonia repens Creeping oregon grape, Dwarf mahonia
native
Shrub 
2021 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Mahonia sonnei Creeping oregon grape, Dwarf mahonia
native
Shrub
2021 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Maianthemum racemosum Feathery false lily of the valley
native
Perennial herb 
2020 Bob Sweatt
2018 Steve Matson
2019 Cynthia Powell
|
|
Maianthemum stellatum Starry false lily of the valley
native
Perennial herb 
2021 Cyril Guyot
2003 Steve Matson
2020 Susan McDougall
|
|
Malus pumila Paradise apple
non-native
Tree 
2014 Ramona Robison
2018 Angelique Herman
2005 Louis-M. Landry
|
|
Malus sylvestris Paradise apple
non-native
Tree
2014 Ramona Robison
2018 Angelique Herman
2005 Louis-M. Landry
|
|
Marrubium vulgare White horehound
• invasive non-native
Perennial herb 
©2013 Gary McDonald
2015 Diane Etchison
2018 Nancy Hamlett
|
|
Marsilea oligospora Nelson's pepperwort, Pacific waterclover
native
Fern 
2021 BLM Redding Field Office
2021 BLM Redding Field Office
2005 Steve Matson
|
|
Marsilea vestita Hairy waterclover
native
Fern 
2020 Ron Vanderhoff
2020 Ken Hickman
2020 Ron Vanderhoff
|
|
Marsilea vestita ssp. vestita Hairy pepperwort, Hairy waterclover
native
Fern 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2017 Ron Vanderhoff
|
|
Melica fugax Little oniongrass, Small melic, Small onion grass
native
Perennial grass 
2023 Matt Berger
2023 Matt Berger
2023 Matt Berger
|
|
Melica spectabilis Purple onion grass, Purple oniongrass
• rare native
Perennial grass (rhizomatous)  2009 Trent M. Draper
 2011 Steve Matson
|
|
Melica stricta Nodding melica, Rock melicgrass
native
Perennial grass 
2003 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Melica subulata Alaska melic, Alaska onion grass, Alaska oniongrass
native
Perennial grass 
2020 Sara Timby
2023 Teal Derrer
2022 Ellen Uhler
|
|
Melilotus alba Yellow sweetclover
• invasive non-native
Annual, Biennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Mentha arvensis American wild mint, Field mint, Marsh mint
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2014 Steve Matson
|
|
Mentzelia albicaulis Small flowered blazing star, White stemmed blazing star, White stemmed stickleaf
native
Annual herb 
2023 Steve Ashcraft
2022 Mike Russler
2019 Diane Etchison
|
|
Mentzelia laevicaulis Blazing star, Giant blazingstar, Smooth stem blazing star
native
Perennial herb 
2023 Mary Ann Machi
2015 Brad Singer
2023 Mary Ann Machi
|
|
Menyanthes trifoliata Bogbean, Buck bean, Buckbean
native
Perennial herb 
2020 David Greenberger
2023 Alaine Arslan
2019 Julie Kierstead Nelson
|
|
Mertensia ciliata Ciliate lungwort, Streamside bluebells, Tall fringed bluebells
native
Perennial herb 
2019 Matt Berger
2019 Matt Berger
2013 BOB CASE
|
|
Mertensia oblongifolia Oblongleaf bluebells, Sagebrush bluebells
native
Perennial herb 
2012 Judy and Barry Breckling
2013 John Doyen
2002 Larry Blakely
|
|
Microseris laciniata ssp. laciniata Cut leaved scorzonella, Cutleaf silverpuffs
native
Perennial herb 
2008 Gerald Carr
2008 Gerald Carr
2008 Gerald Carr
|
|
Microseris nutans Nodding microceris, Nodding scorzonella, Perennial nodding microseris
native
Perennial herb 
2020 Bob Sweatt
2022 Steve Matson
2020 Bob Sweatt
|
|
Microsteris gracilis Slender phlox
native
Annual herb 
2003 Steve Matson
2016 Steve Matson
2003 Steve Matson
|
|
Mimulus bicolor Yellow and white monkeyflower
native
Annual herb 
2016 Ray Gill
2022 Charles Russell
2022 Mary Merriman
|
|
Mimulus breweri Brewer's monkeyflower
native
Annual herb 
2021 Mike Russler
2019 Diane Etchison
2021 Mike Russler
|
|
Mimulus evanescens ephemeral monkeyflower
• rare native
Annual herb 
2019 Matt Berger
2019 Matt Berger
2019 Matt Berger
|
|
Mimulus guttatus Seep monkey flower, Yellow monkey flower
native
Annual, Perennial herb (rhizomatous) 
2019 Stacie Wolny
2015 James Gonsman
2019 Stacie Wolny
|
|
Mimulus jepsonii Jepson's monkeyflower
native
Annual herb 
2019 Matt Berger
2019 Matt Berger
2019 Matt Berger
|
|
Mimulus layneae Layne's monkeyflower
native
Annual herb 
2019 Steve Laymon
2021 Mike Russler
2022 Mike Russler
|
|
Mimulus lewisii Lewis' monkey flower
native
Perennial herb 
2022 Dana York
2018 joaquin hale
2008 John Doyen
|
|
Mimulus moschatus Musk monkeyflower
native
Perennial herb 
2014 James Gonsman
2019 Matt Berger
2018 Julie Kierstead Nelson
|
|
Mimulus nanus Dwarf monkeyflower, Dwarf monkey flower
native
Annual herb 
2020 Bob Sweatt
2020 Cynthia Powell
2020 Cynthia Powell
|
|
Mimulus primuloides var. primuloides Primrose monkeyflower
native
Perennial herb 
2007 Steve Matson
2004 Steve Matson
2007 Steve Matson
|
|
Mimulus pygmaeus Egg Lake monkeyflower
• rare native
Annual herb  James T. Vale and CNPS
 2001 Steve Schoenig
 2006 Dean Wm. Taylor
|
|
Mimulus tricolor Tricolor monkeyflower
native
Annual herb 
2020 Matt Berger
2022 Steve Matson
2022 Steve Matson
|
|
Minuartia douglasii Douglas' Stitchwort
native
Annual herb 
2022 Steve Matson
2019 Stacie Wolny
2021 R.A. Chasey
|
|
Minuartia nuttallii Nuttall's Sandwort
native
Perennial herb 
2019 Steve Matson
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Mitella pentandra Alpine mitrewort
native
Perennial herb 
2011 Steve Matson
2020 Bob Sweatt
2011 Steve Matson
|
|
Monardella odoratissima Desert mint, Mountain monardella, Coyote-Mint
native
Perennial herb 
2010 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Monardella odoratissima ssp. odoratissima Mountain monardella
native
Perennial herb  2009 Keir Morse
 2009 Keir Morse
 2009 Keir Morse
|
|
Monardella odoratissima ssp. pallida Pale mountain monardella, Pallid mountain monardella
native
Perennial herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Monolepis nuttalliana Nuttall's poverty weed, Nuttall's povertyweed
native
Annual herb 
2020 Matt Berger
2020 Matt Berger
2017 Michelle Tollett
|
|
Monotropa hypopithys Pinesap
native
Perennial herb (mycoparasitic) 
2020 R.A. Chasey
2010 Keir Morse
2016 Wynn Anderson
|
|
Montia chamissoi Spring beauty, Toad lily, Water minerslettuce
native
Perennial herb 
2003 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Montia dichotoma Dwarf miner's lettuce, Dwarf minerslettuce
native
Annual herb 
2010 Gerald Carr
2010 Gerald Carr
2010 Gerald Carr
|
|
Montia fontana Annual water minerslettuce, Water chickweed, Water montia
native
Annual herb 
2023 Alaine Arslan
2023 Alaine Arslan
2006 Steve Matson
|
|
Montia linearis Linear leaved montia, Narrow leaved water chickweed, Narrowleaf minerslettuce
native
Annual herb 
2003 Steve Matson
2003 Steve Matson
2015 David popp
|
|
Muhlenbergia jonesii Jones' muhly, Modoc muhly
• rare native
Perennial grass 
2023 Matt Berger
2011 Steve Matson
2023 Matt Berger
|
|
Muhlenbergia richardsonis Mat muhly, Matted muhly, Richardson's muhly
native
Perennial grass 
2021 Steve Matson
2021 Steve Matson
2022 Steve Matson
|
|
Myosurus apetalus Bristly mousetail, Mouse tail
native
Annual herb 
2003 Steve Matson
2003 Steve Matson
2017 Jim Morefield
|
|
Nama lobbii Matted yerba santa
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Navarretia breweri Brewer's navarretia
native
Annual herb 
2020 Bob Sweatt
2023 R.A. Chasey
2019 Steve Matson
|
|
Navarretia divaricata Divaricate navarretia, Mountain navarretia
native
Annual herb 
2004 Steve Matson
2004 Steve Matson
2004 Steve Matson
|
|
Navarretia divaricata ssp. vividior Divaricate navarretia, Mountain navarretia
native
Annual herb  2008 Steve Matson
 2014 John Doyen
 2011 Aaron Schusteff
|
|
Navarretia intertexta ssp. intertexta Interwoven navarretia, Needleleaf navarretia
native
Annual herb 
2019 David Greenberger
2019 Bob Sweatt
2022 Bob Sweatt
|
|
native
Annual herb 
2019 Bob Sweatt
2016 Roy West
2023 R.A. Chasey
|
|
Navarretia leucocephala ssp. minima Least navarretia, Little white navarretia
native
Annual herb 
2005 Steve Matson
2005 Steve Matson
2002 Steve Matson
|
|
Nemophila pedunculata Littlefoot nemophila, Meadow nemophila
native
Annual herb 
2003 Steve Matson
2020 Bob Sweatt
2024 Alaine Arslan
|
|
Nicotiana acuminata var. multi?ora Manyflower tobacco
non-native
Annual herb 
2019 Jennifer Mo
2023 Mike Russler
2022 Irene Rosen
|
|
Nicotiana attenuata Coyote tobacco
native
Annual herb 
2009 Steve Matson
2009 Steve Matson
2020 Bob Sweatt
|
|
Nothocalais alpestris Alpine lake prairie dandelion, Alpine prairie dandelion
native
Perennial herb 
2019 Talila Golan
2018 Dana York
2018 Dana York
|
|
Nothocalais troximoides False agoseris, Weevil prairie dandelion
native
Perennial herb  2018 Susan McDougall
 2006 Steve Matson
 2015 Richard Spellenberg
|
|
Olsynium douglasii var. douglasii Douglas' grasswidow
native
Perennial herb 
2020 Steve Laymon
2020 Gabe Cashman
2018 Susan McDougall
|
|
Onopordum acanthium Scotch cottonthistle
• invasive non-native
Perennial herb 
2021 Diana Wing
2019 Catherine Talbot
2018 Joe Woods
|
|
Orcuttia tenuis Slender orcutt grass
• rare native
Annual grass 
2020 Steve Laymon
2008 F. Gauna
2005 George W. Hartwell
|
|
Orobanche californica ssp. grayana Gray's california broom rape
native
Perennial herb (parasitic)  2014 Kirsten Bovee
 2014 Kirsten Bovee
 2006 George W. Hartwell
|
|
Orobanche corymbosa Flat topped broom rape
native
Annual herb 
2011 Steve Matson
2008 Steve Matson
2011 Steve Matson
|
|
Orobanche fasciculata Clustered broomrape
native
Perennial herb (parasitic) 
2016 Jim Xerogeanes
2016 Jim Xerogeanes
2023 Mary Ann Machi
|
|
Orobanche pinorum Pinewoods broom rape
native
Perennial herb (parasitic) 
2023 Jamie Spielmann
2023 Julie A. Kierstead
2011 Ryan Batten
|
|
Orthilia secunda One sided wintergreen, Sidebells wintergreen
native
Perennial herb 
2019 Bill Haley
2019 Bill Haley
2021 R.A. Chasey
|
|
Orthocarpus cuspidatus ssp. cryptanthus Cryptantha owl's clover, Short flowered owl's clover
native
Annual herb 
2018 Cynthia Powell
2003 Steve Matson
2003 Steve Matson
|
|
Orthocarpus luteus Yellow owl's clover
native
Annual herb 
2021 Ryan Carle
2021 Martin Purdy
2021 Martin Purdy
|
|
Osmorhiza berteroi Sweet cicely
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Osmorhiza occidentalis Mountain sweet cicely, Western sweet cicely, Western sweetroot
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2003 Steve Matson
|
|
Oxyria digyna Alpine mountain sorrel, Alpine mountainsorrel, Mountain sorrel
native
Perennial herb 
2020 Bob Sweatt
2019 Dana York
2019 Dana York
|
|
Packera cana Woolly groundsel
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Packera eurycephala var. eurycephala Widehead groundsel
native
Perennial herb 
2019 Paul Aigner
2019 Paul Aigner
2016 David Greenberger
|
|
Packera indecora Elegant groundsel, Rayless mountain ragwort
• rare native
Perennial herb  2013 Kirsten Bovee
 2013 Kirsten Bovee
 2013 Kirsten Bovee
|
|
Packera multilobata Lobeleaf groundsel
native
Perennial herb 
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Paeonia brownii Brown's peony, Mountain peony, Western paeony
native
Perennial herb 
2020 Karen Swift
2019 Tamia Marg
2015 John Schmidt
|
|
Paxistima myrsinites Oregon boxleaf, Oregon boxwood
native
Shrub 
2021 Dana York
2018 David popp
2021 Hunter Breck
|
|
Pedicularis attollens Attol lousewort, Little elephant head, Little elephant's head
native
Perennial herb 
2019 Timothy Boomer
2022 Ian Archer Winick
2008 Ron Wolf
|
|
Pedicularis groenlandica Elephant head lousewort, Elephant heads, Elephant's head
native
Perennial herb 
2022 Melissa Harbert
2021 Mike Russler
2021 Mike Russler
|
|
Pedicularis semibarbata Bearded lousewort, Pine lousewort, Pine woods lousewort
native
Perennial herb 
2020 Bob Sweatt
2021 Mike Russler
2019 Diane Etchison
|
|
Pellaea breweri Brewer's cliff brake, Brewer's cliffbrake
native
Fern 
2020 Bob Sweatt
2022 Bob Sweatt
2020 Bob Sweatt
|
|
Penstemon cinereus Gray beardtongue
• rare native
Perennial herb 
2020 Julie A. Kierstead
2020 Julie A. Kierstead
2020 Julie A. Kierstead
|
|
Penstemon cinicola Ash beardtongue, Ash penstemon
• rare native
Perennial herb 
2020 Steve Matson
2020 Steve Matson
2020 Steve Matson
|
|
Penstemon davidsonii var. davidsonii Davidson's beardtongue, Davidson's penstemon
native
Perennial herb 
2020 Bob Sweatt
2014 Steve Matson
2014 Steve Matson
|
|
Penstemon deustus var. pedicellatus Hot rock beardtongue, Scabland penstemon
native
Perennial herb 
2020 Susan McDougall
2020 Bob Sweatt
2019 Matt Berger
|
|
Penstemon deustus var. suffrutescens Hot rock beardtongue, Scabland penstemon
native
Perennial herb 
2019 David Greenberger
2021 Mike Russler
2018 Chico Hiking Association
|
|
Penstemon gracilentus Slender beardtongue, Slender penstemon
native
Perennial herb 
2003 Steve Matson
2020 Susan McDougall
2012 Steve Matson
|
|
Penstemon heterodoxus var. heterodoxus Sierra beardtongue
native
Perennial herb 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Penstemon heterodoxus var. shastensis Shasta beardtongue
• rare native
Perennial herb  2014 Sierra Pacific Industries
 2016 John Doyen
 2009 Sierra Pacific Industries
|
|
Penstemon humilis ssp. humilis Low beardtongue
native
Perennial herb 
2019 Susan McDougall
2022 Julie A. Kierstead
2019 Susan McDougall
|
|
Penstemon laetus ssp. sagittatus Mountain blue penstemon
native
Perennial herb 
2010 Gerald Carr
2010 Gerald Carr
2010 Gerald Carr
|
|
Penstemon roezlii Regel's mountain penstemon
native
Perennial herb 
2011 Steve Matson
2011 Steve Matson
2019 Matt Berger
|
|
Penstemon rydbergii var. oreocharis Herbaceous penstemon, Meadow beardtongue, Mountain meadow beardtongue
native
Perennial herb 
2013 James Gonsman
2021 Mike Russler
2023 Alaine Arslan
|
|
Penstemon speciosus Royal beardtongue, Royal penstemon, Showy penstemon
native
Perennial herb 
2023 Richard Dryden
2006 Keir Morse
2022 Julie A. Kierstead
|
|
Peraphyllum ramosissimum Wild crab apple
native
Shrub 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Perideridia bolanderi ssp. bolanderi Bolander's yampah
native
Perennial herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Perideridia gairdneri ssp. borealis Common yampah, Northern gairdner's yampah
native
Perennial herb  2009 Trent M. Draper
 2009 Trent M. Draper
|
|
Perideridia kelloggii Kellogg's yampah, Yampah
native
Perennial herb 
2022 Suzanne L. Weakley
2023 Ryan O'Dell
2022 R.A. Chasey
|
|
Perideridia lemmonii Lemmon's yampah
native
Perennial herb 
2013 Steve Matson
2013 Steve Matson
2013 Steve Matson
|
|
Perideridia parishii ssp. latifolia Parish's yampah, Wide leaved parish's yampah
native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Phacelia hastata Mountain phacelia, Silverleaf phacelia, Timberline phacelia
native
Perennial herb 
2007 Steve Matson
2007 Steve Matson
2012 Steve Matson
|
|
Phacelia hastata var. compacta Timberline phacelia
native
Perennial herb
2007 Steve Matson
2007 Steve Matson
2012 Steve Matson
|
|
Phacelia hastata var. hastata Mountain phacelia
native
Perennial herb 
2021 R.A. Chasey
2013 James Gonsman
2022 Arlee Montalvo
|
|
Phacelia heterophylla ssp. virgata Varied leaf phacelia
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Phacelia humilis var. humilis Low phacelia
native
Annual herb 
2004 Steve Matson
2004 Steve Matson
2004 Steve Matson
|
|
Phacelia inundata Playa phacelia, Playa yellow phacelia
• rare native
Annual herb  2008 F. Gauna
 2008 F. Gauna
|
|
Phacelia linearis Linear leaf phacelia, Narrow leafed phacelia, Thread leaf phacelia
native
Annual herb 
2022 Alaine Arslan
2008 Steve Matson
2016 Ray Gill
|
|
Phacelia mutabilis Changeable phacelia
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Phacelia purpusii Purpus' phacelia
native
Annual herb 
2022 Mike Russler
2019 Diane Etchison
2022 Mike Russler
|
|
Phacelia ramosissima var. eremophila Branching phacelia
native
Perennial herb 
2005 Steve Matson
2022 Rosalind Helfand
2020 Ron Vanderhoff
|
|
Phacelia ramosissima var. ramosissima Branching phacelia
native
Perennial herb
2005 Steve Matson
2022 Rosalind Helfand
2020 Ron Vanderhoff
|
|
Phacelia sericea ssp. ciliosa Blue alpine phacelia
• rare native
Perennial herb 
2019 Julie Kierstead Nelson
2019 Julie Kierstead Nelson
2019 Julie Kierstead Nelson
|
|
Phacelia sericea var. ciliosa Blue alpine phacelia
• rare native
Perennial herb
2019 Julie Kierstead Nelson
2019 Julie Kierstead Nelson
2019 Julie Kierstead Nelson
|
|
Phacelia thermalis Heat phacelia, Heated phacelia
native
Annual herb 
2019 Amelia Ryan
2002 Dean Wm. Taylor
2019 Amelia Ryan
|
|
Phalaris arundinacea Reed canarygrass
native
Perennial grass 
2018 Michelle Forys
2020 Donald Burk
2022 Dianne Lake
|
|
Phleum alpinum Alpine timothy, Mountain timothy, Timothy grass
native
Perennial grass 
2003 Steve Matson
2022 Steve Matson
2021 R.A. Chasey
|
|
Phleum pratense Common timothy, Cultivated timothy, Timothy
non-native
Perennial grass 
2013 BOB CASE
2019 Julie Kierstead Nelson
2021 Emily R. Allen
|
|
Phlox diffusa Spreading phlox
native
Perennial herb 
2018 Saskia Raether
2019 Talila Golan
2009 Keir Morse
|
|
Phlox gracilis Slender phlox
native
Annual herb
2003 Steve Matson
2016 Steve Matson
2003 Steve Matson
|
|
Phlox hoodii ssp. canescens Carpet phlox, Gray phlox, Hood's phlox
native
Perennial herb 
2021 David popp
2024 Alaine Arslan
2024 Alaine Arslan
|
|
Phlox hoodii ssp. muscoides Moss phlox
• rare native
Perennial herb  2013 Justy Leppert
 2002 California Native Plant Society
|
|
Phlox muscoides Moss phlox
• rare native
Perennial herb 2013 Justy Leppert
2002 California Native Plant Society
|
|
Phlox rigida Douglas' phlox
native
Perennial herb  © 1995 Saint Mary's College of California
 1995 Saint Mary's College of California
 1995 Saint Mary's College of California
|
|
Phlox speciosa ssp. occidentalis Showy phlox
native
Perennial herb 
2021 Dee Shea Himes
2020 Julie A. Kierstead
2020 David Self
|
|
Phlox stansburyi Cold desert phlox
native
Perennial herb 
2017 Jim Morefield
2014 Steve Matson
2019 Jim Morefield
|
|
Phoenicaulis cheiranthoides Common phoenicaulis, Dagger pod, Wallflower phoenicaulis
native
Perennial herb 
2020 Bob Sweatt
2020 mark kircher
2019 Bob Sweatt
|
|
Pilularia americana American pillwort
native
Fern 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2022 Matt Berger
|
|
Pinus albicaulis Alpine white pine, Dwarf pine, Whitebark pine
native
Tree 
2006 Keir Morse
2022 Dana York
2021 Mike Russler
|
|
Pinus attenuata Knobcone pine, Scrub pine
native
Tree 
2009 Ron Vanderhoff
2018 Hayley Ross
2019 Cynthia Powell
|
|
Pinus contorta var. murrayana Lodgepole pine, Tamarack
native
Tree 
2022 Arlee Montalvo
2021 Mike Russler
2021 Mike Russler
|
|
Pinus monticola Mountain pine, Western white pine
native
Tree 
2019 Saskia Raether
2020 David popp
2021 Christopher Collier
|
|
Pinus ponderosa Ponderosa pine, Western yellow pine
native
Tree 
2021 David popp
2019 David popp
2022 Cynthia Powell
|
|
Piperia unalascensis Alaska piperia, Alaska rein orchid, Rein orchid
native
Perennial herb 
2006 Steve Matson
2022 Steve Matson
2019 Ron Vanderhoff
|
|
Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower
native
Annual herb  2009 Doug Wirtz
 2009 Anna Bennett
 2004 Carol W. Witham
|
|
Plagiobothrys mollis Downy popcorn flower, Soft popcornflower
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Plagiobothrys scouleri Cognate popcorn flower, Popcorn flower, Sleeping popcorn flower
native
Annual herb 
2003 Steve Matson
2016 BOB CASE
2003 Steve Matson
|
|
Plagiobothrys scouleri var. cusickii Cusick's popcorn flower
native
Annual herb  2011 Steve Matson
 2011 Steve Matson
|
|
Plagiobothrys stipitatus var. micranthus Common vernal pool allocarya, Stalked popcornflower
native
Annual herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Platanthera dilatata var. leucostachys Sierra bog orchid, White Flowered Bog-Orchid
native
Perennial herb 
2022 Mike Russler
2014 Dee Warenycia
2019 Industrious Walkers of the World
|
|
Platanthera leucostachys Sierra bog orchid, White Flowered Bog-Orchid
native
Perennial herb
2022 Mike Russler
2014 Dee Warenycia
2019 Industrious Walkers of the World
|
|
Platanthera stricta Slender bog orchid
• rare native
Perennial herb 
2023 Dana York
2023 Dana York
2023 Dana York
|
|
Plectritis brachystemon Shortspur seablush
native
Annual herb 
2023 Catherine Chang
2005 Steve Matson
2018 Gail Johnson
|
|
Plectritis congesta ssp. brachystemon Shortspur seablush
native
Annual herb
2023 Catherine Chang
2005 Steve Matson
2018 Gail Johnson
|
|
Plectritis macrocera Long horn plectritis, Longhorn plectritis, White plectritis
native
Annual herb 
2019 Gary McDonald
2020 Bob Sweatt
2020 Susan McDougall
|
|
Pleiacanthus spinosus Thorn skeletonweed
native
Perennial herb
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Poa bolanderi Bolander's blue grass, Bolander's bluegrass
native
Annual grass  2014 Belinda Lo
 © 2014 Belinda Lo
 2014 Belinda Lo
|
|
Poa bulbosa Bulbous blue grass, Bulbous bluegrass
non-native
Perennial grass 
2020 Julie A. Kierstead
2019 Stephany Dery
2020 Thomas Reyes
|
|
Poa cusickii Cusick's bluegrass
native
Perennial grass 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Poa leptocoma Marsh bluegrass
native
Perennial grass 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Poa palustris Fowl blue grass, Fowl bluegrass
non-native
Perennial grass 
2015 David popp
2008 Keir Morse
2008 Louis-M. Landry
|
|
Poa pratensis ssp. pratensis Kentucky blue grass, Kentucky bluegrass
• invasive non-native
Perennial grass 
2021 John Rawlings
2020 Diana Wahl
1998 Dean Wm. Taylor (Poa pratensis ssp. agassizensis)
|
|
Poa secunda One sided blue grass, Pine bluegrass, Sandberg bluegrass
native
Perennial grass 
2019 Rachelle Gray
2019 Paul Aigner
2020 Paul Aigner
|
|
Poa wheeleri Hooker's bluegrass, Wheeler's blue grass, Wheeler's bluegrass
native
Perennial grass 
2010 Steve Matson
2010 Steve Matson
2010 Steve Matson
|
|
Polemonium micranthum Annual polemonium, Annual sky pilot, Small jacob's ladder
native
Annual herb 
2009 Steve Matson
2009 Steve Matson
2009 Steve Matson
|
|
Polemonium occidentale Great polemonium, Western polemonium, Western sky pilot
native
Perennial herb 
2005 Steve Matson
2008 Steve Matson
2020 Bob Sweatt
|
|
Polemonium pulcherrimum Jacob's ladder, Sky pilot
native
Perennial herb 
2019 Steve Matson
2019 Bob Sweatt
2019 R.A. Chasey
|
|
native
Perennial herb 
2016 Steve Matson
2021 R.A. Chasey
2019 R.A. Chasey
|
|
Polyctenium fremontii var. fremontii Fremont's combleaf, Fremont's polyctenium
• rare native
Perennial herb  2011 Steve Matson
 2009 Steve Matson
 2021 Sarah Tona
|
|
Polygonum amphibium var. emersum Water smartweed
native
Perennial herb (aquatic) 
2017 Ron Vanderhoff
2017 Ron Vanderhoff
2019 Diane Etchison
|
|
Polygonum arenastrum Prostrate knotweed
non-native
Annual, Perennial herb 
2016 Barbara Boethling
2021 Ron Vanderhoff
2014 Richard Chasey
|
|
Polygonum bistortoides Western Bistort
native
Perennial herb 
2022 Suzanne L. Weakley
2005 Steve Matson
2005 Steve Matson
|
|
Polygonum douglasii Douglas' knotweed
native
Annual herb 
2020 Bob Sweatt
2022 Mike Russler
2022 Mike Russler
|
|
Polygonum douglasii ssp. austiniae Rebecca austin's knotweed
native
Annual herb 
2019 Gerald Carr
2019 Gerald Carr
2019 Gerald Carr
|
|
Polygonum douglasii ssp. douglasii Douglas' knotweed
native
Annual herb
2020 Bob Sweatt
2022 Mike Russler
2022 Mike Russler
|
|
Polygonum douglasii ssp. spergulariiforme Spurry knotweed
native
Annual herb 
2016 Steve Matson
2021 Dana York
2020 R.A. Chasey
|
|
Polygonum minimum Broadleaf knotweed, Leafy dwarf knotweed, Little mountain knotweed
native
Annual herb 
2020 Bob Sweatt
2012 Steve Matson
2021 Mike Russler
|
|
Polygonum parryi Parry's knotweed
native
Annual herb 
2019 Matt Berger
2020 David popp
2019 Dean Taylor
|
|
Polygonum polygaloides ssp. conferti?orum Milkwort knotweed
native
Annual herb 
2022 Steve Ashcraft
2007 Keir Morse
2007 Keir Morse
|
|
Polygonum polygaloides ssp. esotericum Modoc county knotweed, Whitemargin knotweed
• rare native
Annual herb 
2023 Donald Burk
2023 Donald Burk
2023 Donald Burk
|
|
Polygonum polygaloides ssp. kelloggii Kellogg's knotweed
native
Annual herb 
2010 Steve Matson
2010 Steve Matson
2005 Steve Matson
|
|
Polystichum imbricans Cliff sword fern, Narrow leaved sword fern, Narrowleaf swordfern
native
Fern 
2009 Ron Vanderhoff
2018 David popp
2015 Robert Barnard
|
|
Polystichum kruckebergii Kruckeberg's hollyfern, Kruckeberg's sword fern
• rare native
Fern (rhizomatous) 
2022 Dana York
2010 Dana York
2022 Dana York
|
|
Polystichum scopulinum Mountain holly fern, Mountain hollyfern
native
Fern 
2018 David popp
2010 Keir Morse
2019 Matt Berger
|
|
Populus alba Silver poplar, White poplar
non-native
Tree 
2020 Maisie Borg
2016 Sara Sweet
2020 Jennifer Mo
|
|
Populus balsamifera ssp. trichocarpa Black cottonwood
native
Tree 
2019 Ron Vanderhoff
2012 Steve Matson
2012 Steve Matson
|
|
Porterella carnosula Fleshy porterella, Porterella
native
Annual herb 
2007 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Potamogeton alpinus ssp. tenuifolius Alpine pondweed
native
Perennial herb (aquatic) 
2021 Dana York
2021 Dana York
|
|
Potamogeton diversifolius Diverse leaved pondweed, Rafinesque's pondweed, Waterthread pondweed
native
Perennial herb (aquatic) 
2019 Daria Snider
2020 Daria Snider
2020 Daria Snider
|
|
Potamogeton natans Floating leaved pondweed, Floating pondweed
native
Perennial herb (aquatic) 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Potamogeton zosteriformis Eel grass pondweed, Flatstem pondweed
• rare native
Annual herb (aquatic) 
2009 Gerald Carr
2009 Gerald Carr
2009 Gerald Carr
|
|
Potentilla biennis Biennial cinquefoil
native
Perennial herb 
2022 Steve Ashcraft
2022 Steve Ashcraft
2022 Steve Ashcraft
|
|
Potentilla drummondii ssp. breweri Brewer's cinquefoil
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Potentilla drummondii ssp. bruceae Bruce's cinquefoil
native
Perennial herb  2009 Barry Breckling
 1995 Saint Mary's College of California
|
|
Potentilla fruticosa Shrubby cinquefoil
native
Shrub
2020 Bob Sweatt
2014 Steve Matson
2014 Steve Matson
|
|
Potentilla glandulosa Sticky cinquefoil
native
Perennial herb 
2020 Mary Conway
2019 Diane Etchison
2020 Diane Etchison
|
|
Potentilla glandulosa ssp. ashlandica Austin's woodbeauty
native
Perennial herb 
2023 Susan McDougall
2023 Alaine Arslan
2023 Susan McDougall
|
|
Potentilla glandulosa ssp. nevadensis Sierran woodbeauty
native
Perennial herb 
2022 Mike Russler
2022 Mike Russler
2022 Mike Russler
|
|
Potentilla glandulosa ssp. pseudorupestris False rock loving cinquefoil
native
Perennial herb 
2012 Steve Matson
2012 Steve Matson
2014 Steve Matson
|
|
Potentilla glandulosa ssp. re?exa Sticky cinquefoil
native
Perennial herb
2020 Mary Conway
2019 Diane Etchison
2020 Diane Etchison
|
|
Potentilla gracilis var. ?abelliformis Northwest cinquefoil, Slender cinquefoil
native
Perennial herb 
2023 Steve Conger
2022 Mike Russler
2019 Bob Sweatt
|
|
Potentilla gracilis var. fastigiata Slender cinquefoil
native
Perennial herb 
2021 Mike Russler
2021 Mike Russler
2019 Julie Kierstead Nelson
|
|
Potentilla millefolia Cut leaf cinquefoil, Cut leaved cinquefoil, Cutleaf cinquefoil
native
Perennial herb 
2019 Glenn Fine
2004 Steve Matson
2004 Steve Matson
|
|
Potentilla newberryi Newberry's cinquefoil
• rare native
Perennial herb 
2022 Steve Ashcraft
2022 Steve Ashcraft
2021 Bob Sweatt
|
|
Potentilla palustris Marsh cinquefoil
native
Perennial herb
2020 Bob Sweatt
2018 Dean Taylor
2006 Steve Matson
|
|
Potentilla rivalis Brook cinquefoil
native
Annual, Perennial herb 
2020 R.A. Chasey
2020 R.A. Chasey
2014 Jean Pawek
|
|
Prunella vulgaris ssp. lanceolata Lance leaf self heal, Mountain selfheal
native
Perennial herb 
2003 Steve Matson
2022 Zoya Akulova-Barlow
2022 Zoya Akulova-Barlow
|
|
Prunus emarginata Bitter cherry
native
Tree, Shrub 
2020 Belinda Lo
2004 Steve Matson
2006 Steve Matson
|
|
Prunus subcordata Klamath plum, Sierra plum
native
Tree, Shrub 
2020 David Greenberger
Kevin Hintsa
2020 David Greenberger
|
|
Prunus virginiana var. demissa Chokecherry, Western choke cherry, Western chokecherry
native
Tree, Shrub 
2005 Steve Matson
2005 Steve Matson
2020 Susan McDougall
|
|
Pseudognaphalium stramineum Cottonbatting plant
native
Perennial herb
2017 Gary McDonald
2017 Gary McDonald
2017 Gary McDonald
|
|
Pseudoroegneria spicata ssp. spicata Blue bunch wheat grass
native
Perennial grass 
2013 Robert L. Carr
2013 Robert L. Carr
2013 Robert L. Carr
|
|
Pseudostellaria jamesiana Tuber starwort
native
Perennial herb 
2020 Bob Sweatt
2021 Mike Russler
2019 Julie A. Kierstead
|
|
Psilocarphus brevissimus var. brevissimus Short woollyheads, Woolly heads, Woolly marbles
native
Annual herb 
2020 R.A. Chasey
2021 David popp
2020 Ron Vanderhoff
|
|
Psilocarphus elatior Meadow woollyheads, Tall woolly marbles
• rare native
Annual herb 
2006 Gerald Carr
2006 Gerald Carr
2006 Gerald Carr
|
|
Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern
native
Fern 
2019 Ron Vanderhoff
2019 Ron Vanderhoff
2022 Bob Sweatt
|
|
Pterospora andromedea Pine drops, Pine drops, Woodland pinedrops
native
Perennial herb (parasitic) 
2006 Steve Matson
2019 Bob Sweatt
2020 Joey Santore
|
|
Pteryxia terebinthina var. californica Pteryxia, Turpentine cymopterus
native
Perennial herb
2005 Steve Matson
2006 Steve Matson
2012 Steve Matson
|
|
Pulsatilla occidentalis Western anemone, Western pasque flower
native
Perennial herb
2019 Jane Cohn
2017 Art Clark
2020 Bob Sweatt
|
|
Purshia tridentata Antelope bitterbrush, Antelope bush, Bitterbrush
native
Shrub 
2020 Bob Sweatt
2018 Stefan Eggenberg
2005 Steve Matson
|
|
Pyrola aphylla Leafless wintergreen
native
Perennial herb 
2020 Mark Kircher
2020 Mark Kircher
2020 Joey Santore
|
|
Pyrola asarifolia Bog wintergreen, Liverleaf wintergreen
native
Perennial herb 
2018 David Greenberger
2023 Mary Ann Machi
2007 Gerald Carr
|
|
Pyrola picta White veined shinleaf, White veined wintergreen, Whitevein shinleaf
native
Perennial herb 
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Pyrrocoma carthamoides var. cusickii Cusick's columbia pyrrocoma, Largeflower goldenweed
native
Perennial herb 
2020 Donald Burk
2018 Scot Loring
2018 Scot Loring
|
|
Quercus kelloggii Black oak, California black oak
native
Tree 
2020 Kim Cabrera
2021 Emily Sluiman
2023 Ryan O'Dell
|
|
Raillardella argentea Silky raillardella
native
Perennial herb 
2022 Mike Russler
2020 Bob Sweatt
2022 Mike Russler
|
|
Ranunculus alismifolius var. alismifolius Plantainleaf buttercup, Water plantain buttercup
native
Perennial herb 
2021 Alaine Arslan
2023 Mike Russler
2023 Mike Russler
|
|
Ranunculus andersonii Anderson's buttercup
native
Perennial herb 
2012 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Ranunculus aquatilis white water buttercup
native
Perennial herb (aquatic) 
2005 Steve Matson
2021 Bob Sweatt
2021 Bob Sweatt
|
|
Ranunculus glaberrimus var. ellipticus Elliptical buttercup, Narrow leaved smooth buttercup
native
Perennial herb 
2009 Steve Matson
2009 Steve Matson
|
|
Ranunculus glaberrimus var. glaberrimus Sagebrush buttercup, Smooth buttercup
native
Perennial herb 
2012 Orrin Winton
2018 Susan McDougall
2002 Thayne Tuason
|
|
Ranunculus occidentalis Western buttercup
native
Perennial herb 
2020 Ron Vanderhoff
2008 Steve Matson
2022 Ron Vanderhoff
|
|
Ranunculus testiculatus Tubercled crowfoot
non-native
Annual herb
2022 Bob Sweatt
2011 Steve Matson
2020 Donald Burk
|
|
Ranunculus uncinatus Hook seeded buttercup, Hooked fruit buttercup, Woodland buttercup
native
Annual, Perennial herb 
2019 Ken Hickman
2019 Ken Hickman
2017 James Gonsman
|
|
Rhodiola integrifolia ssp. integrifolia Ledge stonecrop
native
Perennial herb 
2005 Steve Matson
2014 Steve Matson
2005 Steve Matson
|
|
Ribes aureum var. aureum Golden currant
native
Shrub 
2019 Susan McDougall
2010 Barry Breckling
1998 Dean Wm. Taylor
|
|
Ribes cereum var. cereum Wax currant
native
Shrub 
2014 James Gonsman
2021 Bryant Baker
2020 Susan McDougall
|
|
Ribes cruentum Sierra gooseberry, Spiny fruited gooseberry
native
Shrub 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Ribes hudsonianum var. petiolare Western black currant
• rare native
Shrub 
2015 Gerald Carr
2015 Gerald Carr
2015 Gerald Carr
|
|
Ribes inerme var. inerme White stemmed gooseberry, Whitestem gooseberry
native
Shrub 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Ribes lacustre Prickly currant, Swamp currant
native
Shrub 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Ribes montigenum Alpine prickly current, Gooseberry currant, Mountain gooseberry
native
Shrub 
2018 Steve Matson
2018 Steve Matson
2020 Bob Sweatt
|
|
Ribes roezlii Sierra gooseberry, Sierran Gooseberry
native
Shrub 
2020 Robert Langellier
2022 Ron Vanderhoff
2009 BOB CASE
|
|
Ribes roezlii var. cruentum Sierra gooseberry, Spiny fruited gooseberry
native
Shrub
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Ribes roezlii var. roezlii Sierra gooseberry
native
Shrub 
2004 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Ribes viscosissimum Sticky currant, Sticky flowering currant
native
Shrub 
2019 Bob Sweatt
2016 Steve Matson
2016 Steve Matson
|
|
Robinia pseudoacacia Black locust
• invasive non-native
Tree 
2021 Ron Vanderhoff
2021 David Wolfson
2015 Ron Vanderhoff
|
|
Rorippa columbiae Columbia yellow cress, Columbian yellowcress
• rare native
Perennial herb (rhizomatous) 
2021 Donald Burk
2021 Donald Burk
2021 Donald Burk
|
|
Rorippa curvisiliqua Curvepod yellow cress, Curvepod yellowcress, Western yellow cress
native
Annual, Perennial herb 
2020 Ron Vanderhoff
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Rorippa nasturtium-aquaticum Watercress
native
Perennial herb (aquatic) 
2019 Patrick Furtado
2019 Diane Etchison
2012 Steve Matson
|
|
Rorippa palustris Bog yellow cress, Bog yellowcress
native
Annual, Perennial herb 
2020 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Rorippa sinuata Spreading yellow cress, Spreading yellowcress
native
Perennial herb (aquatic) 
2017 Gerald Carr
2017 Gerald Carr
2017 Gerald Carr
|
|
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 woodsii var. ultramontana Interior rose
native
Shrub 
2018 Alison Sheehey
2019 Susan McDougall
2016 Jim Moore
|
|
Rubus leucodermis Western raspberry, White bark raspberry, White stemmed raspberry
native
Shrub 
2019 Bob Sweatt
2019 Bob Sweatt
2023 R.A. Chasey
|
|
Rumex acetosella Common sheep sorrel
• invasive non-native
Perennial herb 
2017 Gary McDonald
2008 Steve Matson
2019 Patrick Furtado
|
|
Rumex aquaticus var. fenestratus Western dock
native
Perennial herb 
2008 Toni Corelli
2009 Toni Corelli
2020 Ken Hickman
|
|
Rumex crispus Curly dock, Curly leaved dock, Rhubarb
• invasive non-native
Perennial herb 
2018 Tim Lewis
2019 Diane Etchison
2023 Ron Vanderhoff
|
|
Rumex occidentalis Western dock
native
Perennial herb
2008 Toni Corelli
2009 Toni Corelli
2020 Ken Hickman
|
|
Rumex venosus Veiny dock, Winged dock
• rare native
Perennial herb 
2022 Ryan O'Dell
2022 Ryan O'Dell
2022 Ryan O'Dell
|
|
Sagina saginoides Alpine pearlwort, Arctic pearlwort, Common pearlwort
native
Perennial herb 
2023 R.A. Chasey
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Sagittaria cuneata Arum leaved arrowhead, Arumleaf arrowhead, Tule potato
native
Perennial herb 
2019 Bob Sweatt
2007 Louis-M. Landry
2019 Bob Sweatt
|
|
Salix bebbiana Bebb willow, Gray willow
• rare native
Tree  2008 Louis-M. Landry
 2008 Robert Sivinski
 2008 Louis-M. Landry
|
|
Salix exigua Narrow leaved willow, Narrowleaf willow, Sandbar willow
native
Tree, Shrub 
2015 Steve Matson
2019 Barbara Brydolf
2015 Steve Matson
|
|
Salix lasiolepis Arroyo willow
native
Tree, Shrub 
2022 Ron Vanderhoff
2022 Ron Vanderhoff
2020 Steve Matson
|
|
Salix lucida ssp. caudata Shining willow
native
Shrub  1995 Saint Mary's College of California
 1995 Saint Mary's College of California
 1995 Saint Mary's College of California
|
|
Salix lucida ssp. lasiandra Pacific willow
native
Tree 
2021 Alice Cummings
2021 Diane Renshaw
2021 Ken Hickman
|
|
Salix planifolia Diamondleaf willow
native
Shrub 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Salix prolixa Mackenzie's willow
native
Tree, Shrub  2012 Zoya Akulova
 2014 Zoya Akulova
 2014 Zoya Akulova
|
|
Salix scouleriana Nuttall willow, Scouler willow, Scouler's willow
native
Tree, Shrub 
2016 David popp
2022 John Rawlings
2012 Steve Matson
|
|
Salsola iberica Prickly russian thistle, Russianthistle, Tumbleweed
• invasive non-native
Annual herb 
2017 Ron Vanderhoff
2018 Angelique Herman
2023 Cynthia Powell
|
|
Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed
• invasive non-native
Annual herb
2017 Ron Vanderhoff
2018 Angelique Herman
2023 Cynthia Powell
|
|
Salvia aethiopis Mediterranean sage
• invasive non-native
Perennial herb 
2018 Matt Berger
2001 CDFA
2001 CDFA
|
|
Salvia dorrii ssp. dorrii var. incana Desert sage, Fleshy sage, Great basin sage
• rare native
Shrub 
2006 Steve Matson
2006 Steve Matson
2020 Susan McDougall
|
|
Salvia dorrii var. incana Desert sage, Fleshy sage, Great basin sage
• rare native
Shrub
2006 Steve Matson
2006 Steve Matson
2020 Susan McDougall
|
|
Salvia dorrii var. pilosa Hairy sage
native
Shrub 
2019 Matt Berger
2018 Ashley Olive
2010 Neal Kramer
|
|
Sambucus nigra ssp. canadensis Blue elderberry
native
Shrub 
2020 Diane Etchison
2021 Richard Spjut
2016 Chris Leslie
|
|
Sambucus racemosa var. racemosa Pacific red elderberry
native
Shrub 
2021 R.A. Chasey
2017 James Gonsman
2014 James Gonsman
|
|
Sanguisorba annua Western burnet
native
Annual, Perennial herb 
2018 Steve Matson
2018 Steve Matson
2006 Steve Matson
|
|
Sanguisorba occidentalis Western burnet
native
Annual, Perennial herb
2018 Steve Matson
2018 Steve Matson
2006 Steve Matson
|
|
Sanicula graveolens Northern sanicle, Sierra sanicle
native
Perennial herb 
2021 Steve Matson
2020 Bob Sweatt
2004 Steve Matson
|
|
Saxifraga aprica Sierra saxifrage
native
Perennial herb 
2011 Steve Matson
2019 Bob Sweatt
2020 Bob Sweatt
|
|
Saxifraga oregana Bog saxifrage
native
Perennial herb 
2003 Steve Matson
2020 Bob Sweatt
2018 Bill Haley
|
|
native
Perennial grasslike herb 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
native
Perennial grasslike herb
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
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 antirrhinoides Nose skullcap, Snapdragon skullcap
native
Perennial herb 
2017 Steve Matson
2017 Steve Matson
2017 Steve Matson
|
|
Scutellaria galericulata Marsh skullcap
• rare native
Perennial herb (rhizomatous) 
2006 Steve Matson
2021 Scott Yarger
2006 Steve Matson
|
|
Scutellaria nana Dwarf skullcap, Little skullcap
native
Perennial herb (rhizomatous) 
2006 Steve Matson
2006 Steve Matson
2022 Julie A. Kierstead
|
|
Sedum lanceolatum Lance leaf stonecrop, Spearleaf stonecrop
native
Perennial herb 
2014 Steve Matson
2020 Bob Sweatt
2015 Cynthia Powell
|
|
Sedum stenopetalum Narrow leaf stonecrop, Wormleaf stonecrop
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Senecio aronicoides California butterweed, California groundsel, California rayless butterweed
native
Perennial herb 
2020 Helen Hancock
2008 Steve Matson
2020 Julie A. Kierstead
|
|
Senecio fremontii Dwarf mountain ragwort, Fremont's groundsel
native
Perennial herb 
2022 Dana York
2022 Bob Sweatt
2022 R.A. Chasey
|
|
Senecio hydrophiloides Sweet marsh ragwort, Tall groundwel
• rare native
Perennial herb 
2004 Steve Matson
2004 Steve Matson
2004 Steve Matson
|
|
Senecio hydrophilus Alkali marsh ragwort, Water groundsel, Water ragwort
native
Perennial herb 
2022 Morgan Stickrod
2021 Cynthia Powell
2022 Mike Russler
|
|
Senecio indecorus Elegant groundsel, Rayless mountain ragwort
• rare native
Perennial herb 2013 Kirsten Bovee
2013 Kirsten Bovee
2013 Kirsten Bovee
|
|
Senecio integerrimus var. exaltatus Columbia mountain butterweed, Columbia ragwort, Groundsel
native
Perennial herb 
2021 Paul Watts
2021 Jamie Spielmann
2019 Matt Berger
|
|
Senecio integerrimus var. major Lambstongue groundsel, Lambstongue ragwort
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Senecio multilobatus Lobeleaf groundsel
native
Perennial herb
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Senecio serra var. serra Tall ragwort
native
Perennial herb 
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Senecio triangularis Arrow leaved ragwort, Arrowhead butterweed, Arrowleaf ragwort
native
Perennial herb 
2019 Charles Russell
2019 Bob Sweatt
2003 Steve Matson
|
|
Sibbaldia procumbens Creeping sibbaldia, Sibbaldia
native
Perennial herb 
2017 Steve Matson
2020 Bob Sweatt
2005 Steve Matson
|
|
Sidalcea glaucescens Glaucous checker mallow, Waxy checkerbloom, Waxy checkermallow
native
Perennial herb 
2021 Mike Russler
2021 Mike Russler
2021 Mike Russler
|
|
Sidalcea oregana ssp. oregana Oregon checker mallow, Oregon checkerbloom
native
Perennial herb 
2019 Susan McDougall
2019 Susan McDougall
2018 Glenn Fine
|
|
Sidalcea oregana ssp. spicata Oregon checker mallow, Oregon checkerbloom, Spicate checker mallow
native
Perennial herb 
2021 Cynthia Griffin
2016 mark kircher
2021 Cynthia Griffin
|
|
Silene bridgesii Bridges campion, Bridges' campion, Bridges' catchfly
native
Perennial herb  2008 Ron Wolf
 2009 Keir Morse
 2009 Keir Morse
|
|
Silene douglasii Douglas catchfly, Douglas' campion, Douglas's catchfly
native
Perennial herb 
2015 Charles Russell
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Silene lemmonii Lemmon campion, Lemmon's catchfly
native
Perennial herb 
2017 Steve Matson
2011 Steve Matson
2017 Steve Matson
|
|
Silene menziesii Menzies' campion
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Silene nuda Naked campion, Western fringed catchfly
native
Perennial herb 
2016 Jim Moore
2016 Jim Moore
2012 Aaron Arthur
|
|
Silene verecunda ssp. platyota Dolores campion, San francisco campion
native
Perennial herb 
2022 Cynthia Powell
2022 Cynthia Powell
2022 Cynthia Powell
|
|
Sisymbrium altissimum Tall tumblemustard, Tumble mustard, Tumbling mustard
non-native
Annual herb 
2019 Ron Vanderhoff
2020 Ron Vanderhoff
2020 Ron Vanderhoff
|
|
Sisyrinchium douglasii var. douglasii Douglas' grasswidow
native
Perennial herb
2020 Steve Laymon
2020 Gabe Cashman
2018 Susan McDougall
|
|
Sisyrinchium idahoënse var. idahoënse Idaho blue eyed grass
native
Perennial herb 
2023 Dana York
2023 Dana York
|
|
Smilacina racemosa Feathery false lily of the valley
native
Perennial herb
2020 Bob Sweatt
2018 Steve Matson
2019 Cynthia Powell
|
|
Smilacina stellata Starry false lily of the valley
native
Perennial herb
2021 Cyril Guyot
2003 Steve Matson
2020 Susan McDougall
|
|
Solanum physalifolium Hoe nightshade
non-native
Shrub 
2011 Robert L. Carr
2018 Adonis Tate
2011 Robert L. Carr
|
|
Solanum sarrachoides Hoe nightshade
non-native
Shrub
2011 Robert L. Carr
2018 Adonis Tate
2011 Robert L. Carr
|
|
Solidago canadensis ssp. elongata West coast canada goldenrod
native
Perennial herb 
2003 Steve Matson
2021 Mike Russler
2022 Steve Matson
|
|
Solidago canadensis var. salebrosa Western goldenrod
• rare native
Perennial herb (rhizomatous)  2007 Dr. Amadej Trnkoczy
 2011 Wynn Anderson
|
|
Solidago multiradiata Northern goldenrod, Rocky mountain goldenrod
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2015 Steve Matson
|
|
Solidago velutina Threenerve goldenrod
native
Perennial herb 
2013 Steve Matson
2008 Steve Matson
2013 Steve Matson
|
|
Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle
non-native
Annual herb 
2019 Diane Etchison
2015 Jesse Rorabaugh
2024 Ron Vanderhoff
|
|
Sorbus scopulina var. scopulina Greene's mountain ash
native
Shrub 
2006 Richard Spjut
2016 Cynthia Powell
2019 Richard Spjut
|
|
Sparganium angustifolium Narrow leaved bur reed, Narrowleaf bur reed
native
Perennial herb 
2013 BOB CASE
2013 BOB CASE
2020 Dana York
|
|
Sparganium emersum ssp. emersum European bur reed
native
Perennial herb 
2018 Steve Matson
2018 Steve Matson
2019 David Greenberger
|
|
Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry
non-native
Annual, Perennial herb 
2023 Ron Vanderhoff
2023 Ron Vanderhoff
2023 Ron Vanderhoff
|
|
Sphenosciadium capitellatum Ranger's Buttons, Swamp White Heads
native
Perennial herb 
2007 Steve Matson
2007 Steve Matson
2007 Steve Matson
|
|
Spiraea douglasii Douglas spiraea, Douglas' spirea, Douglas's spirea
native
Shrub 
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Spiranthes porrifolia Creamy ladies tresses, Creamy ladies' tresses, Western ladies tresses
native
Perennial herb 
2020 Mary Ann Machi
2016 Steve Matson
2019 Julie Kierstead Nelson
|
|
Stachys ajugoides var. rigida Mexican hedgenettle
native
Perennial herb 
2023 Mary Ann Machi
2016 Steve Matson
2016 Steve Matson
|
|
Stachys palustris ssp. pilosa Prairie woundwort
• rare native
Perennial herb 
2013 Bob Case
2013 Bob Case
2009 Mary Winter
|
|
Stachys pilosa var. pilosa Prairie woundwort
• rare native
Perennial herb
2013 Bob Case
2013 Bob Case
2009 Mary Winter
|
|
Stachys rigida var. rigida Rough hedgenettle
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Stellaria crispa Curled starwort, Ruffled starwort
native
Perennial herb  2010 Barry Breckling
 2006 Doreen L. Smith
 2012 Jean Pawek
|
|
Stellaria longipes Longstalk starwort
native
Perennial herb 
2022 Mike Russler
2017 Mary Merriman
2022 Mike Russler
|
|
Stellaria media Chickweed
non-native
Annual herb 
2018 Gary McDonald
2018 Gary McDonald
2015 Diane Etchison
|
|
Stellaria umbellata Umbellate chickweed, Umbrella starwort
native
Perennial herb  2005 Steve Matson
 2005 Steve Matson
 2015 Barry Breckling
|
|
Stenotus acaulis Stemless mock goldenweed
native
Perennial herb 
2008 Steve Matson
2016 Steve Matson
2015 Steve Matson
|
|
Stenotus stenophyllus Narrowleaf mock goldenweed
native
Perennial herb  2009 Matt Below
 1998 Dan Post
|
|
Stephanomeria lactucina Forest stephanomeria, Large flowered stephanomeria, Wirelettuce
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2022 Cynthia Powell
|
|
Stephanomeria minor var. minor Narrow leaved stephanomeria, Narrow leaved wire lettuce, Wire lettuce
native
Perennial herb 
2019 Bob Sweatt
2020 Greg Froelich
2020 G
reg Froelich
|
|
Stephanomeria spinosa Thorn skeletonweed
native
Perennial herb
2019 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Streptanthus cordatus var. cordatus Heartleaf jewelflower, Heartleaf twistflower
native
Perennial herb 
2019 Matt Berger
2019 Matt Berger
2019 Matt Berger
|
|
Streptanthus tortuosus var. orbiculatus Jewelweed, Mountain jewelflower, Shieldplant
native
Annual, Perennial herb 
2008 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Swertia albicaulis var. albicaulis Whitestem frasera
native
Perennial herb
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Swertia albicaulis var. nitida Whitestem frasera
native
Perennial herb
2015 Steve Matson
2015 Steve Matson
2015 Steve Matson
|
|
Swertia radiata Monument plant
native
Perennial herb
2019 Zachary Snider
2012 Gerald Carr
2015 Cynthia Powell
|
|
Symphoricarpos albus var. laevigatus Common snowberry, Upright snowberry
native
Shrub 
2020 Jacob Smith
2020 Jacob Smith
2021 Mike Russler
|
|
Symphoricarpos mollis Creeping snowberry, Trailing snowberry
native
Shrub 
2019 Ron Vanderhoff
2020 Cara Wilcox
2019 Ron Vanderhoff
|
|
Symphoricarpos rotundifolius Mountain snowberry, Roundleaf snowberry
native
Shrub 
2021 Steve Matson
2021 Steve Matson
2021 Steve Matson
|
|
Symphoricarpos rotundifolius var. rotundifolius Mountain snowberry, Roundleaved snowberry
native
Shrub
2021 Steve Matson
2021 Steve Matson
2014 Steve Matson
|
|
Symphyotrichum ascendens Western aster
native
Perennial herb 
2022 Steve Matson
2022 Steve Matson
2022 Steve Matson
|
|
Symphyotrichum eatonii Eaton's aster
native
Perennial herb 
2002 Steve Matson
2002 Steve Matson
2019 David popp
|
|
Symphyotrichum foliaceum Alpine leafybract aster
native
Perennial herb 
2017 Mary Merriman
2022 Bob Sweatt
2018 David Greenberger
|
|
Symphyotrichum spathulatum var. spathulatum Western mountain aster
native
Perennial herb 
2013 Steve Matson
2016 Steve Matson
2013 Steve Matson
|
|
Synthyris missurica Tailed kittentails
native
Perennial herb 
2016 Matt Berry
2010 Jean Pawek
2010 Jean Pawek
|
|
Taeniatherum caput-medusae Medusa head
• invasive non-native
Annual grass
2023 Ron Vanderhoff
2019 Jennifer Mo
2011 Steve Matson
|
|
Tetradymia canescens Gray horsebrush, Spineless horsebrush
native
Shrub 
2015 Steve Matson
2015 Steve Matson
2012 Steve Matson
|
|
Thalictrum fendleri var. fendleri Fendler's meadow rue
native
Perennial herb 
2006 Steve Matson
2006 Steve Matson
2006 Steve Matson
|
|
Thalictrum occidentale Western meadow rue
native
Perennial herb  2006 Louis-M. Landry
 2013 Jason Matthias Mills
 BLM,Arcata Field Office
|
|
Thermopsis californica var. argentata Silvery false lupine
• rare native
Perennial herb (rhizomatous) 
2020 Donald Burk
2020 Susan McDougall
2020 Susan McDougall
|
|
Thermopsis macrophylla var. argentata Silvery false lupine
• rare native
Perennial herb (rhizomatous)
2020 Donald Burk
2020 Susan McDougall
2020 Susan McDougall
|
|
Thinopyrum intermedium Intermediate wheatgrass
non-native
Perennial grass
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Torreyochloa erecta Spiked false mannagrass, Spiked mannagrass, Upright mannagrass
native
Perennial grass 
2006 Steve Matson
2006 Steve Matson
2022 John Rawlings
|
|
Torreyochloa pallida var. pauci?ora Pale false mannagrass
native
Perennial grass (rhizomatous) 
2019 Matt Berger
2019 Matt Berger
2018 Ken Hickman
|
|
Tragopogon dubius Goat's beard, Yellow salsify
• invasive non-native
Perennial herb 
2023 Ken Lunders
2020 Bob Sweatt
2019 Liz Block
|
|
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
2019 Aaron Echols
|
|
Trichostema oblongum Mountain bluecurls, Oblong bluecurls
native
Annual herb 
2021 Mike Russler
2012 Steve Matson
2021 Mike Russler
|
|
Trifolium andersonii ssp. andersonii Anderson's clover
• rare native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Trifolium beckwithii Beckwith's clover
native
Perennial herb  1995 Gary A. Monroe
 2008 Steve Matson
 2008 Steve Matson
|
|
Trifolium ciliolatum Foothill clover, Tree clover
native
Annual herb 
2020 Diane Etchison
2015 Diane Etchison
2019 Ron Vanderhoff
|
|
Trifolium kingii var. productum Productive clover
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Trifolium longipes ssp. hansenii Hansen's clover
native
Perennial herb 
2020 R.A. Chasey
2021 David popp
2020 Susan McDougall
|
|
Trifolium longipes var. nevadense Hansen's clover
native
Perennial herb
2020 R.A. Chasey
2021 David popp
2020 Susan McDougall
|
|
Trifolium macrocephalum Big headed clover, Largehead clover
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Trifolium polyodon Pacific grove clover
• rare native
Annual herb 
2017 Lynn Overtree
2017 Lynn Overtree
2011 Dylan Neubauer
|
|
Trifolium pratense Red clover
non-native
Perennial herb 
2019 David Greenberger
2021 Bob Sweatt
2023 R.A. Chasey
|
|
Trifolium productum Productive clover
native
Perennial herb
2005 Steve Matson
2005 Steve Matson
2005 Steve Matson
|
|
Trifolium repens White clover
non-native
Perennial herb 
2017 Gary McDonald
2007 Steve Matson
2017 Gary McDonald
|
|
Trifolium variegatum Variegated clover, White tipped clover, Whitetip clover
native
Annual herb 
2022 Steve Matson
2017 Michael Mitchell
2019 Diane Etchison
|
|
Trifolium wormskioldii Coast clover, Cow clover, Cows clover
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Trimorpha acris var. debilis Northern daisy
• rare native
Perennial herb
2023 Dana York
2023 Dana York
2023 Dana York
|
|
Triphysaria eriantha ssp. eriantha Butter 'n' eggs, Johnny tuck
native
Annual herb 
2005 Steve Matson
2021 Steve Matson
2008 Steve Matson
|
|
Trisetum canescens Nodding oatgrass, Nodding trisetum, Tall trisetum
native
Perennial grass 
2020 John Rawlings
2011 Steve Matson
2022 Ellen Uhler
|
|
Trisetum cernuum Nodding oatgrass, Nodding trisetum
native
Perennial grass 
2019 Kimberly Moses
2019 Kimberly Moses
2011 Steve Matson
|
|
Trisetum spicatum Narrow oatgrass, Spike trisetum
native
Perennial grass 
2002 Steve Matson
2002 Steve Matson
2002 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 ixioides ssp. anilina Mountain pretty face, Prettyface
native
Perennial herb 
2003 Steve Matson
2019 Steve Matson
2019 Steve Matson
|
|
Tsuga mertensiana Mountain hemlock
native
Tree 
2022 Cynthia Powell
2018 Matt Berger
2018 Eric Waller
|
|
Typha latifolia Broadleaf cattail, Common cattail, Soft flag
native
Perennial herb (aquatic) 
2013 Steve Matson
2013 Steve Matson
2013 Steve Matson
|
|
Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle
native
Perennial herb 
2014 Steve Matson
2014 Steve Matson
2014 Steve Matson
|
|
Utricularia macrorhiza Common bladderwort
native
Perennial herb 
2020 Bob Sweatt
2006 Steve Matson
2006 Steve Matson
|
|
Utricularia minor Lesser bladderwort
• rare native
Annual herb 
2013 David popp
2021 Lisa Berry
2014 Roy West
|
|
Utricularia vulgaris Common bladderwort
native
Perennial herb
2020 Bob Sweatt
2006 Steve Matson
2006 Steve Matson
|
|
Vaccinium caespitosum Dwarf bilberry, Huckleberry
native
Shrub 
2021 Alaine Arslan
2019 Talila Golan
2019 Julie A. Kierstead
|
|
Vaccinium deliciosum Cascade bilberry
native
Shrub (stem succulent) 
2019 Dana York
2023 Dana York
2023 Dana York
|
|
Vaccinium membranaceum Thin leaf huckleberry, Thinleaf huckleberry
native
Shrub 
2019 Richard Spjut
2018 Julie Kierstead Nelson
2018 Julie Kierstead Nelson
|
|
Valeriana californica California valerian
native
Perennial herb 
2019 Matt Berger
2021 Mike Russler
2021 Jamie Spielmann
|
|
Veratrum californicum var. californicum California corn lily, California false hellebore, Western false hellebore
native
Perennial herb 
2006 Steve Matson
2018 Richard Spjut
2021 Mike Russler
|
|
Verbascum thapsus Common mullein, Woolly mullein
• invasive non-native
Perennial herb 
2021 R.A. Chasey
2020 Kim Cabrera
2019 Marisa Persaud
|
|
Veronica americana American brooklime, American speedwell, Brooklime
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
|
Veronica cusickii Cusick's speedwell
• rare native
Perennial herb 
2020 Bob Sweatt
2020 Bob Sweatt
2020 Bob Sweatt
|
|
Veronica peregrina ssp. xalapensis Hairy purslane speedwell, Neckweed, Purslane speedwell
native
Annual herb 
2020 Steve Matson
2020 Ron Vanderhoff
2020 Steve Matson
|
|
Veronica scutellata Marsh speedwell, Skullcap speedwell
native
Perennial herb 
2022 Bob Sweatt
2022 Bob Sweatt
2022 Bob Sweatt
|
|
Veronica serpyllifolia ssp. humifusa Bright blue speedwell, Brightblue speedwell, Sprawling speedwell
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2020 Susan McDougall
|
|
Vicia americana ssp. americana American vetch
native
Perennial herb, Vine 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Viola adunca Blue violet, Dog violet, Hookedspur violet
native
Perennial herb 
2015 Steve Matson
2004 Steve Matson
2015 Steve Matson
|
|
Viola beckwithii Beckwith's violet, Great basin violet
native
Perennial herb 
2020 Bob Sweatt
2019 Steve Ashcraft
2018 Timothy Boomer
|
|
Viola lobata ssp. integrifolia Delta leafed forest violet, Pine violet, Yellow violet
native
Perennial herb 
2008 Steve Matson
2008 Steve Matson
2008 Steve Matson
|
|
Viola macloskeyi Macloskey's violet, Small white violet
native
Perennial herb 
2019 David Greenberger
2020 Steve Conger
2021 Alaine Arslan
|
|
Viola nephrophylla Leconte violet, Northern bog violet
native
Perennial herb  2010 Sierra Pacific Industries
 2015 Sierra Pacific Industries
 2015 John Doyen
|
|
Viola praemorsa ssp. linguifolia Astoria violet, Upland yellow violet
native
Perennial herb 
2004 Steve Matson
2004 Steve Matson
2004 Steve Matson
|
|
Viola praemorsa ssp. praemorsa Astoria violet, Canary violet
native
Perennial herb 
2020 Julie A. Kierstead
2020 Julie A. Kierstead
2020 Julie A. Kierstead
|
|
Viola purpurea ssp. integrifolia Goosefoot violet, Smooth leaved violet
native
Perennial herb 
2003 Steve Matson
2003 Steve Matson
2003 Steve Matson
|
|
Viola purpurea ssp. purpurea Goosefoot violet, Mountain Violet
native
Perennial herb 
2021 Jamie Spielmann
2021 Dana York
2017 Robert Barnard
|
|
Viola purpurea ssp. venosa Desert violet, Goosefoot violet, Goosefoot yellow violet
native
Perennial herb 
2023 Mike Russler
2023 Mike Russler
2023 Mike Russler
|
|
Viola sororia ssp. af?nis Common blue violet
native
Perennial herb  2007 Dr. Amadej Trnkoczy
 2010 Louis-M. Landry
 2003 Joseph Dougherty/ecology.org
|
|
Vulpia microstachys Small fescue
native
Annual grass 
2022 Aaron Sunshine
2011 Steve Matson
2011 Steve Matson
|
|
Vulpia microstachys var. pauci?ora Small fescue
native
Annual grass
2022 Aaron Sunshine
2011 Steve Matson
2011 Steve Matson
|
|
Whitneya dealbata Mock leopardbane
native
Perennial herb
2018 Matt Berger
2017 John Doyen
2023 Julie A. Kierstead
|
|
Woodsia oregana Cliff fern, Oregon cliff fern, Oregon woodsia
native
Fern 
2019 Matt Berger
2000 John Game
2006 Steve Matson
|
|
Woodsia scopulina Cliff fern, Mountain cliff fern, Rocky mountain woodsia
native
Fern 
2022 R.A. Chasey
2022 R.A. Chasey
2022 R.A. Chasey
|
|
Wyethia angustifolia California compassplant, Narrow leaf mule ears, Narrow leaved mule ears
native
Perennial herb 
2023 Suzanne L. Weakley
2021 R.A. Chasey
2009 BOB CASE
|
|
Wyethia mollis Mountain mule ears, Mule ears, Woolly mule ears
native
Perennial herb 
2016 James Gonsman
2023 Mike Russler
2023 Julie A. Kierstead
|
|
Xanthium spinosum Spiny clotbur, Spiny cockleburr
non-native
Annual herb 
2017 B.J. Dion
2021 Lynn Overtree
2017 B.J. Dion
|
|
Xanthium strumarium Rough cockleburr
native
Annual herb 
2011 Steve Matson
2011 Steve Matson
2011 Steve Matson
|
|
Zigadenus paniculatus Foothill deathcamas
native
Perennial herb 
2005 Steve Matson
2005 Steve Matson
2008 Steve Matson
|
|
Zigadenus venenosus var. venenosus Meadow deathcamas
native
Perennial herb 
2016 Steve Matson
2016 Steve Matson
2016 Steve Matson
|
