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Criteria:   found in Lassen County  •   is native  •  group by lifeform
3936  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual1078 plants
  Lifeform: Biennial3 plants
Descurainia incisa ssp. incisa Mountain tansy mustard Biennial herb  
Erigeron divergens Diffuse daisy Biennial, Perennial herb 4
Gnaphalium ramosissimum Pink everlasting Biennial herb 2
  Lifeform: Perennial2278 plants
Abronia nana ssp. covillei Coville's dwarf abronia Perennial herb  
Abronia umbellata ssp. breviflora Pink sand verbena Perennial herb  
Abronia umbellata ssp. umbellata Sand verbena Perennial herb  
Achillea millefolium Yarrow Perennial herb 70
Achnatherum aridum Mormon needle grass Perennial grass  
Achnatherum coronatum Giant needlegrass Perennial grass 7
Achnatherum diegoense San diego county needle grass Perennial grass  
Achnatherum hymenoides Indian rice grass Perennial grass 8
Achnatherum latiglume Sierra needlegrass Perennial grass  
Achnatherum latiglumis Sierra needlegrass Perennial grass  
Achnatherum lemmonii Lemmon's stipa Perennial grass 2
Achnatherum lemmonii ssp. lemmonii Lemmon's needlegrass Perennial grass  
Achnatherum lemmonii ssp. pubescens Pubescent needle grass Perennial grass  
Achnatherum lemmonii var. pubescens Pubescent needlegrass Perennial grass  
Achnatherum lettermanii Letterman stipa Perennial grass 1
Achnatherum nelsonii Columbia needlegrass Perennial grass 1
Achnatherum nelsonii ssp. dorei Mountain needlegrass Perennial grass 1
Achnatherum nevadense Sierra needlegrass Perennial grass  
Achnatherum occidentale Western needlegrass Perennial grass 2
Achnatherum occidentale ssp. californicum California needlegrass Perennial grass  
Achnatherum occidentale ssp. occidentale Western needlegrass Perennial grass  
Achnatherum occidentale ssp. pubescens Elmer's needlegrass Perennial grass  
Achnatherum parishii Parish's needlegrass Perennial grass  
Achnatherum pinetorum Pinewoods needlegrass Perennial grass  
Achnatherum speciosum Desert needlegrass Perennial grass 8
Achnatherum stillmanii Stillman's stipa Perennial grass 1
Achnatherum thurberianum Thurber stipa Perennial grass  
Achnatherum webberi Webber's needlegrass Perennial grass  
Acmispon nevadensis Sierra lotus Perennial herb  
Acmispon nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Aconitum columbianum Monkshood Perennial herb 4
Aconitum columbianum ssp. columbianum Columbian monkshood Perennial herb  
Aconitum columbianum var. howellii Howell's monkshood Perennial herb  
Aconogonon davisiae Davis knotweed Perennial herb  
Actaea rubra Baneberry Perennial herb 7
Adenocaulon bicolor Trail plant Perennial herb  
Agastache parvifolia Small leaved horsemint Perennial herb  
Agastache urticifolia Horse mint Perennial herb 6
Ageratina occidentalis Western eupatorium Perennial herb 4
Agoseris Xdasycarpa Perennial herb  
Agoseris aurantiaca Orange flowered agoseris Perennial herb 1
Agoseris elata Tall agoseris Perennial herb  
Agoseris glauca Short beaked agoseris Perennial herb  
Agoseris glauca var. agrestis Field short beaked agoseris Perennial herb  
Agoseris glauca var. glauca Short beaked agoseris Perennial herb  
Agoseris glauca var. laciniata False dandelion Perennial herb  
Agoseris glauca var. monticola Mountain agoseris Perennial herb  
Agoseris grandiflora Giant mountain dandelion Perennial herb 3
Agoseris grandiflora var. grandiflora Giant mountain dandelion Perennial herb  
Agoseris monticola Mountain agoseris Perennial herb  
Agoseris parviflora False dandelion Perennial herb  
Agoseris retrorsa Spear leaved agoseris Perennial herb 1
Agrostis exarata Bentgrass Perennial grass 5
Agrostis exarata var. monolepis Spike bentgrass Perennial grass 5
Agrostis humilis Mountain bent grass Perennial grass  
Agrostis idahoensis Colonial bentgrass Perennial grass 3
Agrostis oregonensis Oregon bentgrass Perennial grass  
Agrostis pallens Diego bent grass Perennial grass 14
Agrostis scabra Rough bentgrass Perennial grass 4
Agrostis scabra var. geminata Rough bentgrass Perennial grass 4
Agrostis thurberiana Thurber's bentgrass Perennial grass  
Agrostis variabilis Mountain bentgrass Perennial grass  
Alisma gramineum Grass leaf water plantain Perennial herb  
Alisma plantago-aquatica Water plantain Perennial herb (aquatic) 5
Alisma triviale Northern water plantain Perennial herb (aquatic) 5
Allium acuminatum Taper tipped onion Perennial herb (bulb) 7
Allium amplectens Narrow leaved onion Perennial herb (bulb) 3
Allium anceps Twin leaved onion Perennial herb (bulb)  
Allium atrorubens Dark red onion Perennial herb (bulb)  
Allium atrorubens var. atrorubens Great basin onion Perennial herb (bulb)  
Allium bisceptrum Twincrest onion Perennial herb (bulb)  
Allium bisceptrum var. bisceptrum Twin crest onion Perennial herb (bulb)  
Allium campanulatum Dusky onion Perennial herb (bulb) 2
Allium lemmonii Lemmon's onion Perennial herb (bulb) 1
Allium membranaceum Papery onion Perennial herb (bulb)  
Allium parvum Dwarf onion Perennial herb (bulb) 1
Allium platycaule Broad stemmed onion Perennial herb (bulb) 2
Allium tolmiei Tolmie's onion Perennial herb (bulb)  
Alopecurus aequalis Sonoma alopecurus Perennial grass  
Alopecurus aequalis var. aequalis Shortawn foxtail Perennial grass  
Alopecurus geniculatus Marsh foxtail Perennial grass  
Ambrosia bipinnatifida Beach bur Perennial herb 10
Ambrosia salsola var. fasciculata Burrobrush Perennial herb  
Amphiscirpus nevadensis Great basin bulrush Perennial grass  
Anaphalis margaritacea Pearly everlasting Perennial herb 17
Anemone drummondii Drummond's anemone Perennial herb 2
Anemone oregana Western wood anenome Perennial herb  
Angelica breweri Brewer's angelica Perennial herb 2
Antennaria argentea Silvery everlasting Perennial herb  
Antennaria corymbosa Meadowpussytoes Perennial herb  
Antennaria dimorpha Gray cushion pussytoes Perennial herb  
Antennaria flagellaris Stoloniferous pussytoes Perennial herb  
Antennaria geyeri Geyer's pussytoes Perennial herb  
Antennaria lanata Woolly pussy toes Perennial herb  
Antennaria luzuloides Silvery brown pussytoes Perennial herb  
Antennaria luzuloides ssp. aberrans Rush pussytoes Perennial herb  
Antennaria luzuloides ssp. luzuloides Rush pussytoes Perennial herb  
Antennaria media Alpine pussytoes Perennial herb 1
Antennaria microphylla Littleleaf pussytoes Perennial herb 5
Antennaria rosea Rosy everlasting Perennial herb 2
Antennaria rosea ssp. confinis Rosy pussytoes Perennial herb  
Antennaria rosea ssp. rosea Rosy pussytoes Perennial herb  
Aphyllon fasciculatum Clustered broomrape Perennial herb (parasitic)  
Apocynum androsaemifolium Spreading dogbane Perennial herb 1
Apocynum cannabinum Indian hemp Perennial herb 10
Aquilegia formosa Columbine Perennial herb 54
Arabis Xdivaricarpa Hybrid drummond's rock cress Perennial herb  
Arabis bodiensis Bodie hills rock cress Perennial herb  
Arabis breweri Brewer's rock cress Perennial herb 1
Arabis breweri var. austiniae Rebecca austin's rock cress Perennial herb  
Arabis breweri var. breweri Brewer's rock cress Perennial herb  
Arabis breweri var. pecuniaria San bernardino rock cress Perennial herb  
Arabis cobrensis Masonic rock cress Perennial herb  
Arabis constancei Constance's rock cress Perennial herb  
Arabis davidsonii Davidson's rock cress Perennial herb  
Arabis dispar Pinyon rock cress Perennial herb  
Arabis drummondii Drummond's rock cress Perennial herb  
Arabis eschscholtziana Eschscholtz's hairy rockcress Perennial herb  
Arabis fernaldiana var. stylosa Stylose rock cress Perennial herb  
Arabis glabra Smooth rock cress Perennial herb  
Arabis glabra var. furcatipilis Smooth rock cress Perennial herb  
Arabis glabra var. glabra Smooth rock cress Perennial herb  
Arabis glaucovalvula Blue podded rock cress Perennial herb  
Arabis hirshbergiae Cuyamaca rockcress Perennial herb  
Arabis hirsuta Hairy rock cress Perennial herb 1
Arabis hirsuta var. glabrata Mountain rock cress Perennial herb  
Arabis hirsuta var. pycnocarpa Hairy fruit rock cress Perennial herb  
Arabis hoffmannii Hoffmann's rock cress Perennial herb  
Arabis holboellii Holboell's rock cress Perennial herb  
Arabis holboellii var. pendulocarpa Weeping fruited holboell's rock cress Perennial herb  
Arabis holboellii var. pinetorum Pine rockcress Perennial herb  
Arabis holboellii var. retrofracta Backward splitting holboell's rock cress Perennial herb  
Arabis inyoensis Inyo rock cress Perennial herb  
Arabis johnstonii Johnston's rock cress Perennial herb  
Arabis koehleri Koehler's rockcress Perennial herb  
Arabis koehleri var. stipitata Koehler's stipitate rock cress Perennial herb  
Arabis lemmonii Lemmon's rock cress Perennial herb  
Arabis lemmonii var. depauperata Depauperate rockcress Perennial herb  
Arabis lemmonii var. lemmonii Lemmon's rock cress Perennial herb  
Arabis lyallii Lyall's rock cress Perennial herb 1
Arabis lyallii var. lyallii Lyall's rockcress Perennial herb  
Arabis lyallii var. nubigena Lyall's cloud cress Perennial herb  
Arabis macdonaldiana Mcdonald's rock cress Perennial herb  
Arabis microphylla Littleleaf rockcress Perennial herb  
Arabis microphylla var. microphylla Small leaved rock cress Perennial herb  
Arabis parishii Parish's rock cress Perennial herb  
Arabis pendulina Rabbitear rockcress Perennial herb  
Arabis perennans Rock cress Perennial herb  
Arabis pinzliae Pinzl's rock cress Perennial herb  
Arabis platysperma Broad seeded rock cress Perennial herb  
Arabis platysperma var. howellii Howell's rockcress Perennial herb  
Arabis platysperma var. platysperma Broad seeded rock cress Perennial herb  
Arabis puberula Blue mountain rock cress Perennial herb  
Arabis pulchra Prince s rock cress Perennial herb 2
Arabis pulchra var. gracilis Slender & beautiful rock cress Perennial herb  
Arabis pulchra var. munciensis Darwin rock cress Perennial herb  
Arabis pulchra var. pulchra Beautiful rock cress Perennial herb 2
Arabis pycnocarpa Creamflower rockcress Perennial herb 1
Arabis pycnocarpa var. pycnocarpa Hairy fruit rock cress Perennial herb  
Arabis pygmaea Tulare county rock cress Perennial herb  
Arabis rectissima Bristlyleaf rockcress Perennial herb  
Arabis rectissima var. rectissima Bristly leaved rock cress Perennial herb  
Arabis repanda Repand rock cress Perennial herb  
Arabis repanda var. greenei Greene's rock cress Perennial herb  
Arabis repanda var. repanda Repand rock cress Perennial herb  
Arabis rollei Siskiyou rock cress Perennial herb  
Arabis serpentinicola Preston peak rock cress Perennial herb  
Arabis shockleyi Shockley's rock cress Perennial herb  
Arabis sparsiflora Sicklepod rock cress Perennial herb 2
Arabis sparsiflora var. arcuata Elegant rockress Perennial herb  
Arabis sparsiflora var. californica California elegant rock cress Perennial herb 1
Arabis sparsiflora var. sparsiflora Elegant rock cress Perennial herb 2
Arabis sparsiflora var. subvillosa Hairy stemmed elegant rock cress Perennial herb  
Arabis subpinnatifida Klamath rockcress Perennial herb  
Arabis suffrutescens Woody rock cress Perennial herb  
Arabis suffrutescens var. suffrutescens Woody rockcress Perennial herb  
Arabis tiehmii Tiehm's rock cress Perennial herb  
Arceuthobium abietinum Fir dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium americanum American dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium californicum Sugar pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium campylopodum Pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium cyanocarpum Blue berry dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium divaricatum Western dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium littorum Seashore dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium monticola Mountain dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium occidentale Digger pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium siskiyouense Siskiyou dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense Hemlock dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense ssp. mertensianae Mountain hemlock dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense ssp. tsugense Hemlock dwarf mistletoe Perennial herb (parasitic)  
Arenaria aculeata Prickly sandwort Perennial herb  
Arenaria congesta Capitate sandwort Perennial herb 1
Arenaria congesta var. charlestonensis Charleston mountains sandwort Perennial herb  
Arenaria congesta var. congesta Capitate sandwort Perennial herb  
Arenaria congesta var. crassula Rough sandwort Perennial herb  
Arenaria congesta var. simulans Capitate sandwort Perennial herb  
Arenaria congesta var. subcongesta Capitate sandwort Perennial herb  
Arenaria congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Arenaria kingii ssp. compacta King's sandwort Perennial herb  
Arenaria kingii var. glabrescens King's smooth sandwort Perennial herb  
Arenaria lanuginosa ssp. saxosa Spreading sandwort Perennial herb  
Arenaria macradenia Sandwort Perennial herb  
Arenaria macradenia ssp. ferrisiae Ferris' sandwort Perennial herb  
Arenaria macradenia var. arcuifolia Desert sandwort Perennial herb  
Arenaria macradenia var. kuschei Forest camp sandwort Perennial herb  
Arenaria macradenia var. macradenia Desert sandwort Perennial herb  
Arenaria pumicola var. californica Pumice sandwort Perennial herb  
Arenaria ursina Big bear valley sandwort Perennial herb  
Argemone corymbosa Leafy prickly poppy Perennial herb 2
Aristida californica var. californica California three aw Perennial grass  
Aristida orcuttiana Orcutt's threeawn Perennial grass  
Arnica Xdiversifolia Rayless arnica Perennial herb  
Arnica amplexicaulis Streambank arnica Perennial herb 3
Arnica chamissonis Chamisso arnica Perennial herb 6
Arnica chamissonis ssp. foliosa Meadow arnica Perennial herb 6
Arnica cordifolia Heart leaved arnica Perennial herb 1
Arnica cordifolia var. cordifolia Heart leaved arnica Perennial herb  
Arnica cordifolia var. pumila Dwarf heart leaved arnica Perennial herb 1
Arnica dealbata Mock leopardbane Perennial herb  
Arnica discoidea Rayless arnica Perennial herb  
Arnica diversifolia Lawless arnica Perennial herb  
Arnica fulgens Hillside arnica Perennial herb (rhizomatous)  
Arnica latifolia Mountain arnica Perennial herb  
Arnica longifolia Seep spring arnica Perennial herb  
Arnica mollis Cordilleran arnica Perennial herb 1
Arnica nevadensis Sierra arnica Perennial herb 1
Arnica parryi Nodding arnica Perennial herb  
Arnica parryi ssp. parryi Parry's arnica Perennial herb  
Arnica parryi ssp. sonnei Sonne's nodding arnica Perennial herb  
Arnica sororia Twin arnica Perennial herb (rhizomatous)  
Arnica tomentella Recondite arnica Perennial herb 1
Artemisia campestris ssp. borealis Northern sagewort Perennial herb  
Artemisia campestris var. scouleriana Field sagewort Perennial herb  
Artemisia douglasiana California mugwort Perennial herb 36
Artemisia dracunculus Tarragon Perennial herb 12
Artemisia ludoviciana Silver wormwood Perennial herb 17
Artemisia ludoviciana ssp. candicans Gray mugwort Perennial herb  
Artemisia ludoviciana ssp. incompta Western mugwort Perennial herb  
Artemisia ludoviciana ssp. ludoviciana Silver wormwood Perennial herb 3
Aruncus dioicus var. pubescens Goats beard Perennial herb  
Asclepias californica California milkweed Perennial herb 7
Asclepias californica ssp. greenei Greene's california milkweed Perennial herb 7
Asclepias cordifolia Purple milkweed Perennial herb 8
Asclepias cryptoceras ssp. davisii Davis' humboldt mountains milkweed Perennial herb  
Asclepias fascicularis narrow leaf milkweed Perennial herb 32
Asclepias speciosa Showy milkweed Perennial herb 41
Asclepias vestita var. parishii Parish's woolly milkweed Perennial herb  
Aster alpigenus var. andersonii Alpine aster Perennial herb 1
Aster ascendens Long leaved aster Perennial herb  
Aster bernardinus San bernardino aster Perennial herb  
Aster breweri Brewer's aster Perennial herb  
Aster brickellioides Rayless leafy aster Perennial herb  
Aster campestris Western meadow aster Perennial herb  
Aster chilensis California aster Perennial herb 39
Aster eatonii Eaton's aster Perennial herb 2
Aster engelmannii Engelmann's aster Perennial herb 2
Aster foliaceus Leafy aster Perennial herb 1
Aster foliaceus var. apricus Parry's leafy aster Perennial herb 1
Aster foliaceus var. lyallii Lyall's leafy aster Perennial herb  
Aster foliaceus var. parryi Parry's aster Perennial herb 1
Aster greatae Greata's aster Perennial herb (rhizomatous)  
Aster integrifolius Entire leaved aster Perennial herb  
Aster lanceolatus ssp. hesperius Western lance leaf aster Perennial herb  
Aster ledophyllus Cascade aster Perennial herb  
Aster lentus Suisun marsh aster Perennial herb (rhizomatous) 1
Aster occidentalis Western mountain aster Perennial herb 1
Aster occidentalis var. occidentalis Western mountain aster Perennial herb  
Aster occidentalis var. yosemitanus Western bog aster Perennial herb  
Aster oregonensis Oregon aster Perennial herb  
Aster pauciflorus Marsh alkali aster Perennial herb  
Aster peirsonii Peirson's oreastrum aster Perennial herb  
Aster radulinus Rough leaved aster Perennial herb 2
Aster scopulorum Lava aster Perennial herb  
Astragalus accidens Rogue river milkvetch Perennial herb  
Astragalus accidens var. hendersonii Henderson's milk vetch Perennial herb  
Astragalus agrestis Purple loco weed Perennial herb  
Astragalus andersonii Anderson's rattle weed Perennial herb  
Astragalus anxius Troubled milk vetch Perennial herb  
Astragalus argophyllus Silverleaf milkvetch Perennial herb  
Astragalus argophyllus var. argophyllus Silver leaf milk vetch Perennial herb  
Astragalus canadensis Canadian milkvetch Perennial herb 1
Astragalus canadensis var. brevidens Short toothed milk vetch Perennial herb  
Astragalus curvicarpus Curvepod milkvetch Perennial herb  
Astragalus curvicarpus var. curvicarpus Curved pod milk vetch Perennial herb  
Astragalus filipes Narrow pod locoweed Perennial herb  
Astragalus gibbsii Gibbs locoweed Perennial herb  
Astragalus inversus Susanville milk vetch Perennial herb  
Astragalus iodanthus Humboldt river milkvetch Perennial herb  
Astragalus iodanthus var. diaphanoides Snake milkvetch Perennial herb  
Astragalus iodanthus var. iodanthus Humboldt river milk vetch Perennial herb  
Astragalus lemmonii Lemmon's milk vetch Perennial herb  
Astragalus lentiformis Lens pod milk vetch Perennial herb  
Astragalus malacus Shaggy milk vetch Perennial herb  
Astragalus monoensis var. monoensis Mono milk vetch Perennial herb  
Astragalus monoensis var. ravenii Raven's milk vetch Perennial herb  
Astragalus obscurus Basalt milk vetch Perennial herb  
Astragalus pulsiferae Pulsifer's milk vetch Perennial herb  
Astragalus pulsiferae var. coronensis Modoc plateau milk vetch Perennial herb  
Astragalus pulsiferae var. pulsiferae Pulsifer's milk vetch Perennial herb  
Astragalus pulsiferae var. suksdorfii Suksdorf's milk vetch Perennial herb  
Astragalus purshii Pursh's sheeppod Perennial herb 3
Astragalus purshii var. lagopinus Pursh's milk vetch Perennial herb  
Astragalus purshii var. lectulus Pursh's milk vetch Perennial herb  
Astragalus purshii var. purshii Pursh's milk vetch Perennial herb  
Astragalus purshii var. tinctus Pursh's milk vetch Perennial herb 1
Astragalus whitneyi Whitney's milk vetch Perennial herb 1
Astragalus whitneyi var. confusus Whitney's milk vetch Perennial herb 1
Astragalus whitneyi var. lenophyllus Whitney's milk vetch Perennial herb  
Astragalus whitneyi var. siskiyouensis Siskiyou milk vetch Perennial herb  
Astragalus whitneyi var. whitneyi Whitney's milk vetch Perennial herb  
Atriplex californica California salt bush Perennial herb 1
Atriplex gardneri Gardner's saltbush Perennial herb 2
Atriplex gardneri var. falcata Sickle saltbush Perennial herb 1
Baccharis douglasii Salt marsh baccharis Perennial herb 15
Bahia dissecta Ragged leaf bahia Perennial herb  
Baileya multiradiata var. multiradiata Wild marigold Perennial herb 20
Balsamorhiza deltoidea Deltoid balsam root Perennial herb 2
Balsamorhiza hirsuta Hairy balsam root Perennial herb  
Balsamorhiza hookeri Hooker's balsam root Perennial herb 1
Balsamorhiza hookeri var. lanata Woolly balsamroot Perennial herb  
Balsamorhiza lanata Woolly balsamroot Perennial herb  
Balsamorhiza macrolepis var. macrolepis Big scale balsamroot Perennial herb  
Balsamorhiza macrolepis var. platylepis Flat scale balsam root Perennial herb 1
Balsamorhiza sagittata Arrow leaved balsamroot Perennial herb 6
Barbarea orthoceras Winter cress Perennial herb 1
Berula erecta Cut leaved water parsnip Perennial herb 1
Bidens cernua Nodding beggartick Perennial herb  
Bidens cernua var. cernua Nodding bur marigold Perennial herb  
Bistorta bistortoides American bistort Perennial herb  
Boechera arcuata Arching rockcress Perennial herb  
Boechera constancei Constance's rock cress Perennial herb  
Boechera covillei Coville's rockcress Perennial herb  
Boechera divaricarpa Spreadingpod rockcress Perennial herb  
Boechera lemmonii Lemmon's rockcress Perennial herb  
Boechera lincolnensis Lincoln rockcress Perennial herb  
Boechera microphylla Small-leaved rock cress Perennial herb  
Boechera microphylla var. microphylla Small-leaved rock cress Perennial herb  
Boechera pauciflora Hairy stem rockcress Perennial herb  
Boechera paupercula Small-flowered rockcress Perennial herb  
Boechera pendulocarpa Dropseed rockcress Perennial herb  
Boechera pinetorum Woodland rockcress Perennial herb  
Boechera platysperma Pioneer rockcress Perennial herb  
Boechera puberula Silver rockcress Perennial herb  
Boechera pulchra Beautiful rockcress Perennial herb 2
Boechera rectissima Bristly leaf rockcress Perennial herb  
Boechera repanda Yosemite rockcress Perennial herb  
Boechera retrofracta Reflexed rockcress Perennial herb  
Boechera sparsiflora Sicklepod rockcress Perennial herb 2
Boechera stricta Drummond's rockcress Perennial herb  
Boechera subpinnatifida Klamath rockcress Perennial herb  
Boechera suffrutescens Woody rockcress Perennial herb  
Bolboschoenus fluviatilis River bulrush Perennial grass 2
Bolboschoenus maritimus Alkali bulrush Perennial grass 16
Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush Perennial grass 16
Boschniakia hookeri Small groundcone Perennial herb (parasitic)  
Boschniakia strobilacea Ground cone Perennial herb (parasitic)  
Brasenia schreberi Watershield Perennial herb (aquatic)  
Brickellia californica California brickellia Perennial herb 17
Brickellia californica var. californica California brickellbush Perennial herb 2
Brickellia grandiflora Large flowered brickelbush Perennial herb  
Brickellia greenei Greene's brickelbush Perennial herb  
Brickellia watsonii Watson's brickellia Perennial herb  
Brodiaea californica var. californica California brodiaea Perennial herb 7
Brodiaea californica var. leptandra Sonoma brodiaea Perennial herb 1
Brodiaea coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. rosea Indian valley brodiaea Perennial herb (bulb)  
Brodiaea purdyi Purdy's brodiaea Perennial herb 2
Bromus anomalus Nodding brome Perennial grass 1
Bromus carinatus California bromegrass Perennial grass 22
Bromus carinatus var. carinatus California brome Perennial grass 22
Bromus carinatus var. marginatus Mountain brome Perennial grass 6
Bromus carinatus var. maritimus Seaside brome Perennial grass 1
Bromus ciliatus Fringed bromegrass Perennial grass 2
Bromus ciliatus var. ciliatus Fringed brome Perennial grass 2
Bromus grandis Tall brome Perennial grass  
Bromus marginatus Mountain brome Perennial grass 6
Bromus suksdorfii Suksdorf's bromegrass Perennial grass 1
Calamagrostis canadensis Canada reedgrass Perennial grass 5
Calamagrostis crassiglumis Thurber's reed grass Perennial grass (rhizomatous) 1
Calamagrostis stricta Narrow hairgrass Perennial grass (rhizomatous) 2
Calamagrostis stricta ssp. inexpansa Thurber's reed grass Perennial grass (rhizomatous) 1
Callitriche fassettii Fassett's water starwort Perennial herb  
Callitriche hermaphroditica Northern water starwort Perennial herb  
Callitriche heterophylla Water starwort Perennial herb  
Calochortus albus var. albus Fairy lantern Perennial herb 1
Calochortus albus var. rubellus Pink fairy lanterns Perennial herb 6
Calochortus bruneaunis Pinyon mariposa Perennial herb 1
Calochortus coeruleus Blue star tulip Perennial herb 1
Calochortus leichtlinii Leichtlin's mariposa lily Perennial herb 2
Calochortus longebarbatus Longbeard mariposa lily Perennial herb (bulb) 1
Calochortus longebarbatus var. longebarbatus Long haired star tulip Perennial herb (bulb)  
Calochortus macrocarpus Sagebrush mariposa lily Perennial herb  
Calochortus venustus Butterfly mariposa lily Perennial herb 6
Calochortus weedii var. vestus Late flowered mariposa lily Perennial herb (bulb) 1
Caltha leptosepala White marsh marigold Perennial herb 3
Caltha leptosepala ssp. howellii Howell's marsh marigold Perennial herb 4
Caltha leptosepala var. biflora Marsh marigold Perennial herb 3
Calyptridium monospermum One seeded pussypaws Perennial herb  
Calystegia occidentalis Bush morning glory Perennial herb 2
Calystegia occidentalis ssp. occidentalis Modoc morning glory Perennial herb  
Calystegia occidentalis var. tomentella Kern morning glory Perennial herb  
Camassia leichtlinii Large camas Perennial herb 11
Camassia leichtlinii ssp. suksdorfii Suksdorf's large camas Perennial herb 2
Camassia quamash Camas Perennial herb 13
Camassia quamash ssp. breviflora Small camas Perennial herb 1
Camassia quamash ssp. quamash Common camas Perennial herb 1
Camissonia cheiranthifolia Beach evening primrose Perennial herb 11
Camissonia cheiranthifolia ssp. cheiranthifolia Beach evening primrose Perennial herb 2
Camissonia cheiranthifolia ssp. suffruticosa Shrubby beach primrose Perennial herb  
Camissonia ovata Sun cup Perennial herb 2
Camissonia subacaulis Long leaved suncup Perennial herb  
Camissonia tanacetifolia Tansy leaf evening primrose Perennial herb  
Camissonia tanacetifolia ssp. quadriperforata Sierra valley evening primrose Perennial herb  
Camissonia tanacetifolia ssp. tanacetifolia Tansy leaved suncup Perennial herb  
Campanula prenanthoides Nodding harebell Perennial herb 2
Cardamine breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. orbicularis Heart leaved bitter cress Perennial herb  
Cardamine californica var. californica Milk maids Perennial herb  
Cardamine californica var. cardiophylla Milk maids Perennial herb  
Cardamine californica var. cuneata Milk maids Perennial herb  
Cardamine californica var. integrifolia California toothwort Perennial herb  
Cardamine californica var. sinuata Milk maids Perennial herb  
Cardamine cordifolia Heartleaf bittercress Perennial herb  
Cardamine cordifolia var. lyallii Lyall's bitter cress Perennial herb  
Cardamine nuttallii Nuttall's toothwort Perennial herb  
Cardamine nuttallii var. covilleana Coville's toothwort Perennial herb  
Cardamine nuttallii var. dissecta Tooth leaved nuttall's toothwort Perennial herb  
Cardamine nuttallii var. nuttallii Nuttall's toothwort Perennial herb  
Cardamine pachystigma var. pachystigma Rock toothwort Perennial herb  
Cardamine pensylvanica Pennsylvania bittercress Perennial herb  
Carex abrupta Abrupt beaked sedge Perennial grass  
Carex albida White sedge Perennial grass (rhizomatous)  
Carex amplectens Clasping bract sedge Perennial grass 1
Carex amplifolia Ample leaved sedge Perennial grass 3
Carex angustata Narrow leaved sedge Perennial grass 1
Carex aquatilis Water sedge Perennial grass 5
Carex aquatilis var. aquatilis Water sedge Perennial grass 1
Carex aquatilis var. dives Sitka sedge Perennial grass 3
Carex atherodes Slough sedge Perennial grass  
Carex athrostachya Slender leaved sedge Perennial grass 2
Carex aurea Golden fruited sedge Perennial grass  
Carex bella Southwestern showy sedge Perennial grass  
Carex bolanderi Bolander's sedge Perennial grass  
Carex brainerdii Brainerd's sedge Perennial grass  
Carex breweri var. breweri Brewer's sedge Perennial grass  
Carex capitata ssp. capitata Capitate sedge Perennial grass  
Carex constanceana Contance's sedge Perennial grass  
Carex cusickii Cusick's sedge Perennial grass 2
Carex davyi Davy's sedge Perennial grass  
Carex deflexa Mountain mat sedge Perennial grass  
Carex deflexa var. boottii Mountain mat sedge Perennial grass  
Carex densa Sedge Perennial grass 9
Carex deweyana Dewey sedge Perennial grass 5
Carex deweyana ssp. leptopoda Dewey's taper fruit sedge Perennial grass 3
Carex disperma Soft leaf sedge Perennial grass  
Carex douglasii Douglas sedge Perennial grass 1
Carex dudleyi Dudley's sedge Perennial grass 9
Carex echinata Bristle fruit sedge Perennial grass 1
Carex echinata ssp. echinata Bristle fruit sedge Perennial grass  
Carex eleocharis Spikerush sedge Perennial grass (rhizomatous)  
Carex feta Green sheathed sedge Perennial grass  
Carex filifolia Thread leaf sedge Perennial grass 1
Carex filifolia var. erostrata Thread leaf sedge Perennial grass  
Carex filifolia var. filifolia Thread leaf sedge Perennial grass 1
Carex fracta Fragile sheathed sedge Perennial grass 1
Carex garberi Garber's sedge Perennial grass  
Carex geyeri Geyer's sedge Perennial grass (rhizomatous)  
Carex gigas Siskiyou sedge Perennial grass (rhizomatous)  
Carex hassei Hasse's sedge Perennial grass  
Carex haydeniana Cloud sedge Perennial grass  
Carex heteroneura Variable nerved sedge Perennial grass  
Carex heteroneura var. epapillosa Smooth nerve sedge Perennial grass  
Carex heteroneura var. heteroneura Vari nerved sedge Perennial grass  
Carex hoodii Hood's sedge Perennial grass  
Carex incurviformis var. danaensis Coastal sand sedge Perennial grass (rhizomatous)  
Carex inops Long stolon sedge Perennial grass 1
Carex inops ssp. inops Long stolon sedge Perennial grass 1
Carex integra Smooth beak sedge Perennial grass  
Carex interior Inland sedge Perennial grass 1
Carex jonesii Jones' sedge Perennial grass  
Carex lasiocarpa Woolly fruited sedge Perennial grass (rhizomatous) 2
Carex lemmonii Lemmon's sedge Perennial grass  
Carex lenticularis Lakeshore sedge Perennial grass 1
Carex lenticularis var. impressa Lakeshore sedge Perennial grass  
Carex lenticularis var. limnophila Lakeshore sedge Perennial grass  
Carex lenticularis var. lipocarpa Fat fruited sedge Perennial grass 1
Carex limosa Shore sedge Perennial grass (rhizomatous)  
Carex livida Livid sedge Perennial grass (rhizomatous)  
Carex luzulina var. ablata American cold loving sedge Perennial grass  
Carex luzulina var. luzulina Wood rush sedge Perennial grass  
Carex mariposana Mariposa sedge Perennial grass  
Carex microptera Small wing sedge Perennial grass 2
Carex multicaulis Forest sedge Perennial grass  
Carex multicostata Many ribbed sedge Perennial grass  
Carex nebrascensis Nebraska sedge Perennial grass 2
Carex nervina Sierra nerved sedge Perennial grass  
Carex ovalis Egg sedge Perennial grass 1
Carex pachystachya Thick headed sedge Perennial grass 2
Carex pellita Woolly sedge Perennial grass 7
Carex petasata Liddon's sedge Perennial grass  
Carex phaeocephala Mountain hare sedge Perennial grass  
Carex praegracilis Field sedge Perennial grass 28
Carex preslii Presl's sedge Perennial grass 1
Carex pyrenaica Pyrenean sedge Perennial grass  
Carex pyrenaica ssp. pyrenaica Pyrenean sedge Perennial grass  
Carex raynoldsii Raynold's sedge Perennial grass  
Carex rossii Ross' sedge Perennial grass 1
Carex scabriuscula Siskiyou sedge Perennial grass (rhizomatous)  
Carex scirpoidea var. pseudoscirpoidea Western single spike sedge Perennial grass  
Carex scopulorum Mountain sedge Perennial grass  
Carex scopulorum var. bracteosa Bracted sedge Perennial grass  
Carex sheldonii Sheldon's sedge Perennial grass (rhizomatous)  
Carex simulata Short beaked sedge Perennial grass 2
Carex specifica Narrow fruit sedge Perennial grass  
Carex straminiformis Straw like sedge Perennial grass  
Carex subfusca Brown sedge Perennial grass 8
Carex utriculata Beaked sedge Perennial grass 1
Carex vallicola Valley sedge Perennial grass  
Carex vernacula Native sedge Perennial grass  
Carex vesicaria Blister sedge Perennial grass 3
Carex vesicaria var. major Western blister sedge Perennial grass 2
Carex vesicaria var. vesicaria Inflated sedge Perennial grass 2
Carex whitneyi Whitney's sedge Perennial grass  
Castilleja affinis Indian paintbrush Perennial herb 1
Castilleja affinis ssp. affinis Wight's indian paint brush Perennial herb 1
Castilleja angustifolia Desert paintbrush Perennial herb 3
Castilleja applegatei Wavy leaf paintbrush Perennial herb 2
Castilleja applegatei ssp. disticha Forked wavy leaf paintbrush Perennial herb  
Castilleja applegatei ssp. pallida Brewer's indian paintbrush Perennial herb  
Castilleja applegatei ssp. pinetorum Pine wavy leaf paintbrush Perennial herb  
Castilleja arachnoidea Cobwebby paintbrush Perennial herb  
Castilleja chromosa Desert paintbrush Perennial herb 3
Castilleja gleasonii Mt. gleason indian paintbrush Perennial herb (hemiparasitic)  
Castilleja hispida ssp. brevilobata Short lobed indian paintbrush Perennial herb (hemiparasitic)  
Castilleja inflata Indian paintbrush Perennial herb  
Castilleja lanata ssp. hololeuca White felted indian paintbrush Perennial herb (hemiparasitic)  
Castilleja lemmonii Lemmon's paintbrush Perennial herb  
Castilleja linariifolia Desert paintbursh Perennial herb 2
Castilleja miniata Great red paintbrush Perennial herb 6
Castilleja miniata ssp. miniata Scarlet indian paintbrush Perennial herb  
Castilleja parviflora Mountain paintbrush Perennial herb  
Castilleja parviflora var. parviflora Smallflower indian paintbrush Perennial herb  
Castilleja pilosa Pilose paintbrush Perennial herb  
Caulanthus crassicaulis var. crassicaulis Thick stemmed caulanthus Perennial herb  
Caulanthus crassicaulis var. glaber Smooth thick stemmed caulanthus Perennial herb  
Caulanthus major Slender wild cabbage Perennial herb  
Caulanthus major var. major Slender wild cabbage Perennial herb  
Caulanthus major var. nevadensis Sierra nevada wild cabbage Perennial herb  
Caulostramina jaegeri Jaeger's caulostramina Perennial herb  
Centaurium namophilum var. namophilum Spring loving centaury Perennial herb  
Cerastium beeringianum ssp. earlei Bering chickweed Perennial herb 1
Cerastium beeringianum var. capillare Mouse ear chickweed Perennial herb 1
Ceratophyllum demersum Hornwort Perennial herb 1
Chaetadelpha wheeleri Wheeler's chaetadelpha Perennial herb  
Chamaesaracha nana Dwarf chamaesaracha Perennial herb  
Chamaesyce albomarginata Rattlesnake weed Perennial herb  
Chamaesyce arizonica Arizona spurge Perennial herb  
Chamaesyce fendleri Fendler's spurge Perennial herb  
Chamaesyce melanadenia Spurge Perennial herb  
Chamaesyce parishii Parish's spurge Perennial herb  
Chamaesyce pediculifera Carrizo mountain spurge Perennial herb  
Chamaesyce polycarpa Small seeded spurge Perennial herb  
Chamaesyce polycarpa var. hirtella Hairy small seeded spurge Perennial herb  
Chamaesyce polycarpa var. polycarpa Small seeded spurge Perennial herb  
Chamaesyce vallis-mortae Death valley spurge Perennial herb  
Chamerion angustifolium Fireweed Perennial herb 14
Chamerion angustifolium ssp. circumvagum Fireweed Perennial herb 2
Chimaphila menziesii Little prince's pine Perennial herb  
Chimaphila umbellata Blake's prince's pine Perennial herb  
Chrysothamnus albidus White flowered rabbitbrush Perennial herb  
Chrysothamnus gramineus Panamint rock goldenrod Perennial herb  
Chrysothamnus paniculatus Blackbanded rabbit brush Perennial herb 1
Cicuta douglasii Western water hemlock Perennial herb 1
Cicuta maculata var. maculata Spotted water hemlock Perennial herb  
Cinna latifolia Drooping wood reed Perennial grass  
Circaea alpina Small enchanter's nightshade Perennial herb  
Circaea alpina ssp. pacifica Pacific enchanter's nightshade Perennial herb  
Cirsium andersonii Anderson's thistle Perennial herb  
Cirsium canovirens Gray green thistle Perennial herb  
Cirsium congdonii Congdon's thistle Perennial herb  
Cirsium cymosum Peregrine thistle Perennial herb  
Cirsium cymosum var. cymosum Peregrine thistle Perennial herb  
Cirsium douglasii Swamp thistle Perennial herb 1
Cirsium douglasii var. breweri Brewer's swamp thistle Perennial herb  
Cirsium inamoenum Greene's thistle Perennial herb  
Cirsium loncholepis La graciosa thistle Perennial herb  
Cirsium occidentale Western thistle Perennial herb 9
Cirsium occidentale var. californicum California thistle Perennial herb  
Cirsium occidentale var. candidissimum Snowy thistle Perennial herb  
Cirsium occidentale var. coulteri Coulter's thistle Perennial herb  
Cirsium scariosum Elk thistle Perennial herb  
Cirsium scariosum var. americanum Dinnerplate thistle Perennial herb  
Cirsium subniveum Jackson hole thistle Perennial herb  
Claytonia lanceolata Western spring beauty Perennial herb  
Claytonia umbellata Great basin claytonia Perennial herb  
Clematis ligusticifolia var. brevifolia Western white clematis Perennial herb, Vine 33
Clematis ligusticifolia var. californica California clematis Perennial herb, Vine 33
Clematis ligusticifolia var. ligusticifolia Western white clematis Perennial herb, Vine 33
Comandra umbellata Bastard toadflax Perennial herb (parasitic)  
Comandra umbellata ssp. californica Bastard toad flax Perennial herb (parasitic)  
Comarum palustre Marsh cinquefoil Perennial herb 5
Corallorhiza maculata Summer coral root Perennial herb  
Corallorhiza striata Striped coral root Perennial herb  
Corallorhiza striata var. striata Hooded coralroot Perennial herb  
Corallorhiza striata var. vreelandii Striped coral root Perennial herb  
Coreopsis maritima Sea dahlia Perennial herb 6
Corydalis caseana Sierra fumewort Perennial herb 1
Corydalis caseana ssp. caseana Sierra corydalis Perennial herb  
Crepis acuminata Tall hawksbeard Perennial herb  
Crepis bakeri Baker's hawksbeard Perennial herb  
Crepis bakeri ssp. cusickii Cusick's hawksbeard Perennial herb  
Crepis intermedia Intermediate hawksbeard Perennial herb  
Crepis modocensis Modoc hawksbeard Perennial herb  
Crepis modocensis ssp. modocensis Modoc hawksbeard Perennial herb  
Crepis modocensis ssp. subacaulis Modoc hawksbeard Perennial herb  
Crepis monticola Mountain hawk's beard Perennial herb  
Crepis occidentalis Western hawk's beard Perennial herb  
Crepis occidentalis ssp. conjuncta Largeflower hawksbeard Perennial herb  
Crepis occidentalis ssp. costata Largeflower hawksbeard Perennial herb  
Crepis occidentalis ssp. occidentalis Largeflower hawksbeard Perennial herb  
Crepis occidentalis ssp. pumila Largeflower hawksbeard Perennial herb  
Crepis pleurocarpa Naked stemmed hawksbeard Perennial herb  
Crepis runcinata Meadow hawksbeard Perennial herb  
Cressa truxillensis Alkali weed Perennial herb 3
Cryptantha flavoculata Rough seed cryptantha Perennial herb  
Cryptantha humilis Low oreocarya Perennial herb  
Cryptantha nubigena Sierra cryptantha Perennial herb  
Cryptantha schoolcraftii Schoolcraft's cryptantha Perennial herb  
Cryptantha sobolifera Sierra perennial cryptantha Perennial herb  
Cusickiella douglasii Alkali draba Perennial herb  
Cycladenia humilis Cycladenia Perennial herb 1
Cycladenia humilis var. humilis Cycladenia Perennial herb  
Cylindropuntia Xmunzii Munz's cholla Perennial herb (stem succulent) 2
Cymopterus terebinthinus Turpentine cymopterus Perennial herb  
Cymopterus terebinthinus var. californicus Turpentine cymopterus Perennial herb  
Cynanchum utahense Vine milkweed Perennial herb  
Cynoglossum occidentale Hound's tongue Perennial herb  
Cypripedium californicum California lady's slipper Perennial herb (rhizomatous)  
Dalea ornata Ornate dalea Perennial herb  
Damasonium californicum California damsonium Perennial herb (aquatic)  
Danthonia californica California oatgrass Perennial grass 20
Danthonia californica var. americana American oatgrass Perennial grass 20
Danthonia californica var. californica California oatgrass Perennial grass 20
Danthonia unispicata One spiked oatgrass Perennial grass  
Dasyochloa pulchella Low woollygrass Perennial grass  
Delphinium andersonii Anderson larkspur Perennial herb 4
Delphinium depauperatum Few flowered larkspur Perennial herb  
Delphinium glaucum Sierra larkspur Perennial herb 3
Delphinium gypsophilum ssp. gypsophilum Gypsum loving larkspur Perennial herb  
Delphinium inflexum Hybrid parry's larkspur Perennial herb 7
Delphinium nudicaule Canyon larkspur Perennial herb 3
Delphinium nuttallianum Nuttall's larkspur Perennial herb 2
Delphinium stachydeum Spiked larkspur Perennial herb  
Delphinium variegatum f. superbum Royal larkspur Perennial herb  
Deschampsia atropurpurea Mountain hair grass Perennial grass 1
Deschampsia cespitosa Tufted hair grass Perennial grass 50
Deschampsia cespitosa ssp. cespitosa Tufted hairgrass Perennial grass 25
Deschampsia elongata Hairgrass Perennial grass 17
Descurainia californica Sierra tansy mustard Perennial herb  
Descurainia incana Mountain tansy mustard Perennial herb  
Descurainia obtusa ssp. adenophora White tansy mustard Perennial herb  
Dicentra chrysantha Golden eardrops Perennial herb 4
Dicentra ochroleuca Yellow bleeding heart Perennial herb  
Dicentra uniflora Steers head Perennial herb  
Dichanthelium lanuginosum var. thermale Geysers dichanthelium Perennial grass  
Dichelostemma multiflorum Many flowered brodiaea Perennial herb 6
Dieteria canescens Hoary aster Perennial herb 1
Dieteria canescens var. canescens Hoary aster Perennial herb  
Dieteria canescens var. shastensis Shasta aster Perennial herb  
Disporum hookeri Fairy bells Perennial herb 10
Disporum smithii Fairy lantern Perennial herb 6
Distichlis spicata Salt grass Perennial grass 25
Ditaxis californica California ditaxis Perennial herb  
Ditaxis clariana Glandular ditaxis Perennial herb  
Dodecatheon alpinum Alpine shooting star Perennial herb 1
Dodecatheon clevelandii Padre's shooting star Perennial herb 8
Dodecatheon clevelandii ssp. clevelandii Cleveland's shooting star Perennial herb  
Dodecatheon clevelandii ssp. insulare Padre's shooting star Perennial herb 2
Dodecatheon clevelandii ssp. patulum Padre's shooting star Perennial herb  
Dodecatheon clevelandii ssp. sanctarum Padre's shooting star Perennial herb  
Dodecatheon conjugens Bonneville shooting star Perennial herb  
Dodecatheon hendersonii Shooting star Perennial herb 11
Dodecatheon jeffreyi Jeffrey's shooting star Perennial herb 3
Dodecatheon pulchellum Dark throated shooting star Perennial herb 6
Dodecatheon redolens Scented shooting star Perennial herb  
Dodecatheon subalpinum Sierra shooting star Perennial herb  
Draba breweri var. breweri Cushion draba Perennial herb  
Draba breweri var. cana Hoary draba Perennial herb  
Draba corrugata var. corrugata Southern california draba Perennial herb  
Draba corrugata var. saxosa Southern california rock draba Perennial herb  
Draba lemmonii var. lemmonii Lemmon's draba Perennial herb  
Draba lonchocarpa var. lonchocarpa Spear fruited draba Perennial herb  
Draba oligosperma var. oligosperma Few seeded draba Perennial herb  
Draba oligosperma var. subsessilis Alpine few seeded draba Perennial herb  
Draba paysonii var. treleasei Trelease's draba Perennial herb  
Drosera anglica Long leaved sundew Perennial herb (carnivorous)  
Drosera rotundifolia Round leaved sundew Perennial herb 1
Drymocallis glandulosa Sticky cinquefoil Perennial herb 12
Drymocallis glandulosa var. glandulosa Sticky cinquefoil Perennial herb  
Drymocallis lactea Perennial herb 1
Drymocallis lactea var. austiniae Austin's woodbeauty Perennial herb  
Drymocallis lactea var. lactea Sierran woodbeauty Perennial herb  
Dudleya abramsii ssp. parva Conejo dudleya Perennial herb  
Dudleya attenuata ssp. orcuttii Orcutt's dudleya Perennial herb 2
Dudleya blochmaniae ssp. brevifolia Short leaved dudleya Perennial herb  
Dudleya calcicola Limestone dudleya Perennial herb  
Dudleya cymosa ssp. costafolia Pierpoint springs dudleya Perennial herb  
Dudleya hassei Hasse's dudleya Perennial herb 9
Dudleya pulverulenta ssp. arizonica Arizona chalk dudleya Perennial herb 1
Dudleya pulverulenta ssp. pulverulenta California chalk lettuce Perennial herb 16
Dudleya setchellii Santa clara valley dudleya Perennial herb 3
Dugaldia hoopesii Hoope's sneezeweed Perennial herb 7
Eleocharis acicularis Needle spikerush Perennial grass 2
Eleocharis acicularis var. acicularis Needle spike rush Perennial grass  
Eleocharis acicularis var. bella Beautiful spikerush Perennial grass  
Eleocharis bella Beautiful spikerush Perennial grass  
Eleocharis bolanderi Bolander's spikerush Perennial grass  
Eleocharis macrostachya Spike rush Perennial grass 18
Eleocharis montevidensis Montevideo spike rush Perennial grass 2
Eleocharis palustris Common spikerush Perennial grass 8
Eleocharis parishii Parish's spike rush Perennial grass  
Eleocharis parvula Small spikerush Perennial grass 2
Eleocharis pauciflora Few flowered spike rush Perennial grass  
Eleocharis quinqueflora Fewflower spikerush Perennial grass  
Eleocharis suksdorfiana Suksdorf's spikerush Perennial grass  
Elodea canadensis Common water weed Perennial herb  
Elodea nuttallii Western waterweed Perennial herb  
Elymus Xhansenii Perennial grass  
Elymus Xsaundersii Perennial grass  
Elymus cinereus Great basin wild rye Perennial grass 8
Elymus condensatus Giant wild rye Perennial grass 32
Elymus elymoides Squirrel tail grass Perennial grass 12
Elymus elymoides ssp. brevifolius Short leaved squirreltail Perennial grass  
Elymus elymoides ssp. californicus California squirreltail Perennial grass  
Elymus elymoides ssp. elymoides Squirreltail Perennial grass  
Elymus elymoides var. californicus Squirrel tail grass Perennial grass  
Elymus elymoides var. elymoides Squirrel tail grass Perennial grass  
Elymus glaucus Blue wildrye Perennial grass 34
Elymus glaucus ssp. glaucus Blue wild rye Perennial grass 2
Elymus glaucus ssp. jepsonii Western rye grass Perennial grass 2
Elymus glaucus ssp. virescens Virginia wildrye Perennial grass  
Elymus lanceolatus Thickspike wheatgrass Perennial grass 3
Elymus multisetus Big squirreltail grass Perennial grass 13
Elymus salina Salina pass wild rye Perennial grass  
Elymus smithii Western wheat grass Perennial grass 4
Elymus spicatus Blue bunch wheat grass Perennial grass 7
Elymus stebbinsii ssp. stebbinsii Parish wheatgrass Perennial grass  
Elymus trachycaulus Slender wheatgrass Perennial grass 8
Elymus trachycaulus ssp. subsecundus Bearded wheatgrass Perennial grass 2
Elymus trachycaulus ssp. trachycaulus Slender wheatgrass Perennial grass 7
Elymus triticoides Beardless wild rye Perennial grass 29
Elytrigia juncea Russian wheatgrass Perennial grass  
Epilobium angustifolium ssp. angustifolium Fireweed Perennial herb 1
Epilobium angustifolium ssp. circumvagum Fireweed Perennial herb 1
Epilobium canum California fuchsia Perennial herb 32
Epilobium canum ssp. latifolium California fushia Perennial herb 5
Epilobium ciliatum Slender willow herb Perennial herb 2
Epilobium ciliatum ssp. ciliatum Willow herb Perennial herb 2
Epilobium ciliatum ssp. glandulosum Glandular willowherb Perennial herb 1
Epilobium glaberrimum Smooth willowherb Perennial herb  
Epilobium glaberrimum ssp. fastigiatum Smooth willowherb Perennial herb  
Epilobium glaberrimum ssp. glaberrimum Smooth willowherb Perennial herb  
Epilobium halleanum Hairy willowherb Perennial herb  
Epilobium hallianum Hall's willowherb Perennial herb  
Epilobium hornemannii Hornemann's willowherb Perennial herb  
Epilobium hornemannii ssp. hornemannii Hornemann's willow herb Perennial herb  
Epilobium latifolium River beauty Perennial herb 3
Epilobium oregonense Slimstem willowweed Perennial herb  
Epilobium palustre Marsh willow herb Perennial herb  
Epipactis gigantea Stream orchid Perennial herb 16
Eremogone aculeata Prickly sandwort Perennial herb  
Eremogone congesta Capitate sandwort Perennial herb 1
Eremogone congesta var. charlestonensis Charleston sandwort Perennial herb  
Eremogone congesta var. congesta Capitate sandwort Perennial herb  
Eremogone congesta var. crassula Rough sandwort Perennial herb  
Eremogone congesta var. simulans Capitate sandwort Perennial herb  
Eremogone congesta var. subcongesta Capitate sandwort Perennial herb  
Eremogone congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Eremogone ferrisiae Perennial herb  
Eremogone kingii King's sandwort Perennial herb 1
Eremogone kingii var. glabrescens King's smooth sandwort Perennial herb  
Erigeron acris Bitter fleabane Perennial herb  
Erigeron angustatus Narrow leaved daisy Perennial herb  
Erigeron aphanactis Rayless shaggy fleabane Perennial herb  
Erigeron aphanactis var. aphanactis Rayless shaggy fleabane Perennial herb  
Erigeron aphanactis var. congestus Clustered fleabane Perennial herb  
Erigeron austiniae Rebecca austin's fleabane Perennial herb  
Erigeron barbellulatus Shining daisy Perennial herb 1
Erigeron bloomeri Scabland fleabane Perennial herb  
Erigeron bloomeri var. bloomeri Scabland fleabane Perennial herb  
Erigeron breweri Brewer's fleabane Perennial herb  
Erigeron breweri var. klamathensis Klamath fleabane Perennial herb  
Erigeron cervinus Siskiyou daisy Perennial herb (rhizomatous)  
Erigeron chrysopsidis Dwarf yellow fleabane Perennial herb 1
Erigeron chrysopsidis var. austiniae Rebecca austin's fleabane Perennial herb  
Erigeron compactus var. compactus Cushion daisy Perennial herb  
Erigeron coulteri Coulter's daisy Perennial herb  
Erigeron decumbens var. robustior Robust daisy Perennial herb  
Erigeron disparipilus White cushion fleabane Perennial herb  
Erigeron eatonii Eaton's daisy Perennial herb  
Erigeron eatonii var. nevadincola Nevada daisy Perennial herb  
Erigeron eatonii var. plantagineus Eaton's daisy Perennial herb  
Erigeron eatonii var. sonnei Sonne's daisy Perennial herb  
Erigeron elegantulus Volcanic daisy Perennial herb  
Erigeron filifolius Threadleaf fleabane Perennial herb  
Erigeron filifolius var. filifolius Thread leaved fleabane Perennial herb  
Erigeron glacialis Wandering fleabane Perennial herb 3
Erigeron glacialis var. glacialis Wandering fleabane Perennial herb  
Erigeron inornatus Rayless fleabane Perennial herb  
Erigeron inornatus var. calidipetris Hot rock daisy Perennial herb  
Erigeron inornatus var. inornatus Fleabane Perennial herb  
Erigeron lassenianus Mt. lassen fleabane Perennial herb  
Erigeron lassenianus var. lassenianus Mt. lassen daisy Perennial herb  
Erigeron linearis Narrow leaved fleabane Perennial herb 3
Erigeron lobatus Lobed fleabane Perennial herb 4
Erigeron lonchophyllus Shortray fleabane Perennial herb  
Erigeron nevadincola Nevada daisy Perennial herb  
Erigeron nivalis Northern daisy Perennial herb  
Erigeron peregrinus Wandering fleabane Perennial herb 3
Erigeron peregrinus var. callianthemus Wandering fleabane Perennial herb  
Erigeron peregrinus var. hirsutus Wandering fleabane Perennial herb  
Erigeron petrophilus Cliff fleabane Perennial herb  
Erigeron petrophilus var. sierrensis Northern sierra daisy Perennial herb (rhizomatous)  
Erigeron philadelphicus Philadelphia fleabane Perennial herb  
Erigeron philadelphicus var. philadelphicus Philadelphia fleabane Perennial herb  
Erigeron pumilus Shaggy fleabane Perennial herb  
Erigeron pumilus ssp. intermedius Shaggy fleabane Perennial herb  
Erigeron pumilus var. gracilior Shaggy fleabane Perennial herb  
Erigeron pumilus var. intermedius Shaggy fleabane Perennial herb  
Eriodictyon lobbii Matted yerba santa Perennial herb 1
Eriogonum beatleyae Beatley's buckwheat Perennial herb  
Eriogonum caespitosum Clumping buckwheat Perennial herb 3
Eriogonum crosbyae Crosby's buckwheat Perennial herb  
Eriogonum douglasii Douglas' buckwheat Perennial herb 1
Eriogonum douglasii var. douglasii Douglas' buckwheat Perennial herb  
Eriogonum douglasii var. meridionale Douglas' buckwheat Perennial herb 1
Eriogonum elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. villosum Long hairy tall buckwheat Perennial herb  
Eriogonum ericifolium var. thornei Thorne's buckwheat Perennial herb  
Eriogonum gracilipes White mountains buckwheat Perennial herb 1
Eriogonum heracleoides Parsnipflower buckwheat Perennial herb 4
Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat Perennial herb 1
Eriogonum inflatum var. deflatum Deflated desert trumpet Perennial herb  
Eriogonum inflatum var. inflatum Desert trumpet Perennial herb  
Eriogonum lobbii Lobb's buckwheat Perennial herb  
Eriogonum lobbii var. lobbii Lobb's buckwheat Perennial herb  
Eriogonum oblongifolium Coast buckwheat Perennial herb 23
Eriogonum ochrocephalum White woolly buckwheat Perennial herb  
Eriogonum ochrocephalum var. alexanderae Alexander's buckwheat Perennial herb  
Eriogonum ochrocephalum var. ochrocephalum White woolly buckwheat Perennial herb  
Eriogonum ovalifolium Oval leaved eriogonum Perennial herb 4
Eriogonum ovalifolium var. depressum Cushion buckwheat Perennial herb 1
Eriogonum ovalifolium var. nivale Cushion buckwheat Perennial herb 1
Eriogonum ovalifolium var. ovalifolium Cushion buckwheat Perennial herb  
Eriogonum ovalifolium var. purpureum Purple cushion buckwheat Perennial herb  
Eriogonum panamintense var. mensicola Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum panamintense var. panamintense Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum prociduum Prostrate buckwheat Perennial herb  
Eriogonum prociduum var. prociduum Prostrate buckwheat Perennial herb  
Eriogonum sphaerocephalum Round headed buckwheat Perennial herb  
Eriogonum sphaerocephalum var. halimioides Round headed buckwheat Perennial herb  
Eriogonum sphaerocephalum var. sphaerocephalum Round headed buckwheat Perennial herb  
Eriogonum strictum Blue mountain buckwheat Perennial herb 1
Eriogonum strictum var. anserinum Blue mountain buckwheat Perennial herb  
Eriogonum strictum var. proliferum Blue mountain buckwheat Perennial herb 1
Eriogonum umbellatum Sulphur buckwheat Perennial herb 26
Eriogonum umbellatum var. covillei Coville's sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. modocense Sulphur flower buckwheat Perennial herb 2
Eriogonum umbellatum var. nevadense Sierra sulfur flower Perennial herb 1
Eriogonum umbellatum var. polyanthum Many flowered sulfur flower Perennial herb 6
Eriogonum ursinum Bear buckwheat Perennial herb 4
Eriogonum ursinum var. ursinum Bear buckwheat Perennial herb  
Eriogonum wrightii Wright's buckwheat Perennial herb, Shrub 6
Eriogonum wrightii var. subscaposum Wright's buckwheat Perennial herb, Shrub 3
Erioneuron pulchellum Fluff grass Perennial grass  
Eriophorum criniger Cotton grass Perennial grass  
Eriophorum crinigerum Fringed cottongrass Perennial grass  
Eriophorum gracile Slender cotton grass Perennial grass  
Eriophyllum lanatum Wooly sunflower Perennial herb 27
Eriophyllum lanatum var. achillaeoides Yarrow leaved woolly sunflower Perennial herb 2
Eriophyllum lanatum var. achilleoides Yarrow leaved woolly sunflower Perennial herb 2
Eriophyllum lanatum var. croceum Sierra woolly sunflower Perennial herb  
Eriophyllum lanatum var. grandiflorum Large flowered woolly sunflower Perennial herb 1
Eriophyllum lanatum var. integrifolium Oregon sunshine Perennial herb  
Eryngium alismifolium Coyote thistle Perennial herb  
Eryngium articulatum Coyote thistle Perennial herb 1
Eryngium mathiasiae Mathias' button celery Perennial herb  
Eryngium pendletonensis Pendleton's eryngo Perennial herb  
Erysimum argillosum Western wallflower Perennial herb  
Erysimum capitatum Wallflower Perennial herb 11
Erysimum capitatum var. bealianum Western wallflower Perennial herb 1
Erysimum capitatum var. capitatum Sanddune wallflower Perennial herb 1
Erysimum capitatum var. perenne Sanddune wallflower Perennial herb  
Erysimum franciscanum var. crassifolium San francisco wallflower Perennial herb 9
Erysimum insulare ssp. insulare Island wallflower Perennial herb  
Erysimum insulare ssp. suffrutescens Suffrutescent wallflower Perennial herb 5
Erysimum insulare var. grandifolium Island wallflower Perennial herb  
Erysimum menziesii ssp. concinnum Headland wallflower Perennial herb  
Erysimum menziesii ssp. eurekense Humboldt bay wallflower Perennial herb  
Erysimum menziesii ssp. menziesii Menzies's wallflower Perennial herb 1
Erysimum menziesii ssp. yadonii Yadon's wallflower Perennial herb 1
Erysimum perenne Sanddune wallflower Perennial herb  
Erythranthe inodora Musk monkeyflower Perennial herb 2
Erythranthe lewisii Lewis' monkey flower Perennial herb 12
Erythranthe linearifolia Primrose monkeyflower Perennial herb 3
Erythranthe primuloides Primrose monkeyflower Perennial herb  
Erythronium grandiflorum var. pallidum California glacier lily Perennial herb (bulb)  
Erythronium multiscapoideum Sierra fawn lily Perennial herb (bulb) 4
Eschscholzia californica ssp. californica California poppy Perennial herb 3
Eschscholzia procera Kernville poppy Perennial herb 3
Eucephalus breweri Brewer's aster Perennial herb  
Euphorbia incisa Mojave spurge Perennial herb  
Euphorbia palmeri Woodland spurge Perennial herb  
Eurybia integrifolia Thickstem aster Perennial herb  
Eurybia radulina Roughleaf aster Perennial herb 2
Euthamia occidentalis Western goldenrod Perennial herb 16
Fagonia longipes Long leaf fagonia Perennial herb  
Festuca brachyphylla ssp. coloradensis Colorado fescue Perennial grass  
Festuca californica California fescue Perennial grass 48
Festuca californica ssp. californica Perennial grass 7
Festuca californica ssp. hitchcockiana Perennial grass  
Festuca californica ssp. parishii Perennial grass  
Festuca californica var. parishii California fescue Perennial grass  
Festuca idahoensis Blue fescue Perennial grass 52
Festuca occidentalis Western fescue Perennial grass 8
Festuca roemeri var. klamathensis Idaho fescue Perennial grass 49
Festuca roemeri var. roemeri Perennial grass 49
Festuca rubra Red fescue Perennial grass 40
Festuca saximontana var. purpusiana Rocky mountain fescue Perennial grass 1
Festuca viridula Mountain bunch fescue Perennial grass  
Fragaria chiloensis ssp. lucida Beach strawberry Perennial herb 38
Fragaria crinita Beach strawberry Perennial herb 34
Fragaria vesca Wild strawberry Perennial herb 44
Fragaria vesca ssp. bracteata Woodland strawberry Perennial herb 34
Fragaria virginiana Mountain strawberry Perennial herb 12
Frasera albicaulis Whitestem frasera Perennial herb  
Frasera albicaulis var. modocensis Modoc frasera Perennial herb  
Frasera albicaulis var. nitida Whitestem frasera Perennial herb  
Frasera speciosa Monument plant Perennial herb  
Fritillaria affinis Checker lily Perennial herb (bulb) 7
Fritillaria affinis var. affinis Checker lily Perennial herb (bulb) 4
Fritillaria affinis var. tristulis Coast checker lily Perennial herb (bulb) 4
Fritillaria atropurpurea Spotted mountain bells Perennial herb 2
Fritillaria pudica Yellow fritillary Perennial herb 4
Fritillaria recurva Scarlet fritillary Perennial herb 1
Galium ambiguum var. ambiguum Yolla bolly bedstraw Perennial herb  
Galium ambiguum var. siskiyouense Siskiyou bedstraw Perennial herb  
Galium bolanderi Bolander's bedstraw Perennial herb  
Galium boreale Northern bedstraw Perennial herb  
Galium boreale ssp. septentrionale Northern bedstraw Perennial herb  
Galium mexicanum Mexican bedstraw Perennial herb  
Galium mexicanum ssp. asperulum Mexican bedstraw Perennial herb  
Galium mexicanum var. asperulum Mexican bedstraw Perennial herb  
Galium multiflorum Many flowered bedstraw Perennial herb  
Galium trifidum Three petaled bedstraw Perennial herb  
Galium trifidum ssp. columbianum Threepetal bedstraw Perennial herb  
Galium trifidum ssp. subbiflorum Threepetal bedstraw Perennial herb  
Galium trifidum var. pacificum Bedstraw Perennial herb  
Galium trifidum var. pusillum Small bedstraw Perennial herb  
Galvezia speciosa Island snapdragon Perennial herb, Shrub 33
Gentiana calycosa Rainier pleated gentian Perennial herb  
Gentiana newberryi Alpine gentian Perennial herb 2
Gentiana newberryi var. newberryi Alpine gentian Perennial herb  
Gentiana newberryi var. tiogana Sierra alpine gentian Perennial herb  
Geranium californicum California geranium Perennial herb 1
Geranium concinnum California mountain geranium Perennial herb 1
Geranium oreganum Oregon geranium Perennial herb 2
Geranium richardsonii Richardson's geranium Perennial herb  
Geranium viscosissimum Sticky geranium Perennial herb 2
Geum aleppicum Aleppo avens Perennial herb  
Geum macrophyllum Large leaved avens Perennial herb 8
Geum macrophyllum var. perincisum Largeleaf avens Perennial herb  
Geum triflorum Old man's beard Perennial herb 7
Geum triflorum var. ciliatum Prairie-smoke Perennial herb 1
Gilia ripleyi Ripley's gilia Perennial herb  
Glaux maritima Sea milk wort Perennial herb  
Glyceria borealis Northern mannagrass Perennial grass 1
Glyceria davyi Davy mannagrass Perennial grass  
Glyceria elata Tall mannagrass Perennial grass 8
Glyceria occidentalis Waxy mannagrass Perennial grass (aquatic) 2
Glyceria striata Fowl mannagrass Perennial grass 8
Gnaphalium canescens Everlasting cudweed Perennial herb 4
Gnaphalium canescens ssp. beneolens Cudweed Perennial herb 1
Gnaphalium canescens ssp. canescens Everlasting cudweed Perennial herb 1
Gnaphalium canescens ssp. microcephalum White everlasting Perennial herb 1
Gnaphalium canescens ssp. thermale Small headed cudweed Perennial herb  
Gnaphalium leucocephalum White headed cudweed Perennial herb  
Grindelia camporum var. bracteosa Bract gumweed Perennial herb 14
Grindelia camporum var. camporum Great valley gumweed Perennial herb 1
Grindelia fraxino-pratensis Ash meadows gumplant Perennial herb  
Grindelia hirsutula Gumweed Perennial herb 12
Grindelia hirsutula var. davyi Davy's gumweed Perennial herb 14
Grindelia hirsutula var. hallii San diego gumplant Perennial herb  
Grindelia hirsutula var. hirsutula Hairy gumweed Perennial herb 13
Grindelia nana Idaho gumweed Perennial herb  
Grindelia nana var. nana Idaho gumweed Perennial herb  
Hackelia amethystina Amethyst stickseed Perennial herb  
Hackelia californica California stickseed Perennial herb  
Hackelia cusickii Cusick stickweed Perennial herb  
Hackelia floribunda Many flowered stickseed Perennial herb  
Hackelia micrantha Jessica's stickseed Perennial herb  
Hackelia mundula Pink stickseed Perennial herb  
Hackelia velutina Velvety stickseed Perennial herb  
Halimolobos virgata Virgate halimolobos Perennial herb  
Hastingsia alba White hastingsia Perennial herb 2
Hazardia whitneyi Whitney's bristleweed Perennial herb  
Hazardia whitneyi var. whitneyi Whitney's goldenbush Perennial herb  
Hedeoma nana var. californica California mock pennyroyal Perennial herb  
Hedeoma nanum var. californicum Mock pennyroyal Perennial herb  
Helenium autumnale var. grandiflorum Large flowered autumn sneezeweed Perennial herb 8
Helenium autumnale var. montanum Montane autumn sneezeweed Perennial herb 8
Helianthella californica California helianthella Perennial herb 5
Helianthella californica var. nevadensis California helianthella Perennial herb 1
Helianthus cusickii Cusick's sunflower Perennial herb  
Heliotropium curassavicum Chinese parsley Perennial herb 7
Heliotropium curassavicum var. oculatum Seaside heliotrope Perennial herb 1
Heliotropium procumbens var. procumbens Fourspike heliotrope Perennial herb  
Heracleum lanatum Cow parsnip Perennial herb 21
Heracleum maximum Common cowparsnip Perennial herb 21
Hesperochiron californicus California hesperochiron Perennial herb  
Hesperochiron pumilus Dwarf hesperochiron Perennial herb  
Hesperostipa comata Needle & thread grass Perennial grass 10
Hesperostipa comata ssp. comata Needle & thread grass Perennial grass 1
Hesperostipa comata ssp. intermedia Intermediate needle & thread grass Perennial grass  
Heterotheca sessiliflora var. bolanderoides False bolander's goldenaster Perennial herb  
Heterotheca villosa Hairy goldenaster Perennial herb 11
Heterotheca villosa var. hispida Hairy goldenaster Perennial herb  
Heterotheca villosa var. minor Hairy false goldenaster Perennial herb  
Heterotheca villosa var. scabra Rough hairy goldenaster Perennial herb  
Heterotheca villosa var. shevockii Shevock's hairy golden aster Perennial herb  
Heterotheca villosa var. villosa Hairy goldenaster Perennial herb  
Heuchera alpestris Parish's alumroot Perennial herb 3
Heuchera cespitosa Tufted alumroot Perennial herb 3
Heuchera cylindrica var. alpina Alpine alumroot Perennial herb 8
Heuchera duranii Duran's alumroot Perennial herb (rhizomatous)  
Heuchera elegans Urn flowered alumroot Perennial herb (rhizomatous) 5
Heuchera micrantha var. diversifolia Crevice alumroot Perennial herb 33
Heuchera micrantha var. erubescens Crevice alumroot Perennial herb 32
Heuchera micrantha var. macropetala Crevice alumroot Perennial herb 32
Heuchera micrantha var. micrantha Crevice alumroot Perennial herb 33
Heuchera pilosissima var. pilosissima Seaside alumroot Perennial herb 10
Heuchera pringlei Merriam's alumroot Perennial herb 1
Heuchera rubescens Pink alumroot Perennial herb 6
Heuchera rubescens var. alpicola Allum root Perennial herb 6
Heuchera rubescens var. glandulosa Pink alumroot Perennial herb 6
Heuchera rubescens var. rydbergiana Pink alumroot Perennial herb 6
Hieracium albiflorum White flowered hawkweed Perennial herb 1
Hieracium argutum Hawkweed Perennial herb  
Hieracium gracile Alpine hawkweed Perennial herb  
Hieracium greenei Greene's hawkweed Perennial herb  
Hieracium horridum Shaggy hawkweed Perennial herb  
Hieracium nudicaule Naked stemmed scouler's hawkweed Perennial herb  
Hieracium scouleri Hounds tongue hawkweed Perennial herb  
Hieracium scouleri var. nudicaule Naked stemmed scouler's hawkweed Perennial herb  
Hierochloe occidentalis Western sweetgrass Perennial grass 6
Hierochloe odorata Vanilla grass Perennial grass (rhizomatous) 9
Hippuris vulgaris Mare's tail Perennial herb (aquatic) 1
Hordeum brachyantherum Meadow barley Perennial grass 25
Hordeum brachyantherum ssp. brachyantherum Meadow barley Perennial grass 4
Hordeum brachyantherum ssp. californicum Meadow barley Perennial grass 7
Hordeum jubatum Fox tail barley Perennial grass 7
Hordeum jubatum ssp. jubatum Foxtail barley, squirreltail barley Perennial grass  
Horkelia californica ssp. californica California horkelia Perennial herb  
Horkelia californica ssp. dissita California horkelia Perennial herb  
Horkelia californica ssp. frondosa California horkelia Perennial herb  
Horkelia congesta ssp. nemorosa Josephine horkelia Perennial herb  
Horkelia cuneata ssp. cuneata Coast horkelia Perennial herb 1
Horkelia cuneata ssp. puberula Coast horkelia Perennial herb  
Horkelia cuneata ssp. sericea Wedge leaved horkelia Perennial herb 1
Horkelia fusca Tawny horkelia Perennial herb  
Horkelia fusca ssp. capitata Dark horkelia Perennial herb  
Horkelia fusca ssp. parviflora Dusky horkelia Perennial herb  
Horkelia fusca ssp. tenella Pinewoods horkelia Perennial herb  
Horkelia fusca var. brownii Tawny horkelia Perennial herb  
Horkelia fusca var. parviflora Tawny horkelia Perennial herb  
Horkelia fusca var. pseudocapitata Tawny horkelia Perennial herb  
Horkelia fusca var. tenella Tawny horkelia Perennial herb  
Horkelia tridentata Three toothed horkelia Perennial herb  
Horkelia tridentata ssp. flavescens Three toothed horkelia Perennial herb  
Horkelia tridentata ssp. tridentata Three toothed horkelia Perennial herb  
Horkelia tridentata var. flavescens Three toothed horkelia Perennial herb  
Horkelia tridentata var. tridentata Three toothed horkelia Perennial herb  
Hosackia crassifolia Broad leaved lotus Perennial herb 6
Hosackia crassifolia var. crassifolia Broad leaved lotus Perennial herb 2
Hosackia crassifolius Lotus Perennial herb 1
Hosackia crassifolius var. otayensis Otay mountain lotus Perennial herb 1
Hosackia oblongifolia Narrow leaved lotus Perennial herb 2
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus Perennial herb 1
Hosackia pinnata Pinnate lotus Perennial herb  
Hydrophyllum alpestre Alpine breeches Perennial herb  
Hydrophyllum capitatum Ballhead waterleaf Perennial herb  
Hydrophyllum capitatum var. alpinum Woolen breeches Perennial herb  
Hydrophyllum occidentale Western waterleaf Perennial herb 1
Hymenoxys acaulis var. arizonica Arizona hymenoxys Perennial herb 1
Hymenoxys cooperi Cooper's goldflower Perennial herb  
Hymenoxys cooperi var. canescens Gray cooper's goldflower Perennial herb  
Hymenoxys cooperi var. cooperi Cooper's rubberweed Perennial herb  
Hymenoxys lemmonii Lemmon's goldflower Perennial herb  
Hypericum formosum St john's wort Perennial herb  
Hypericum formosum var. scouleri Scouler's st. john's wort Perennial herb 2
Hypericum scouleri Scouler's st john's wort Perennial herb 2
Iliamna bakeri Baker's globe mallow Perennial herb 1
Ipomopsis aggregata Scarlet gilia Perennial herb 7
Ipomopsis aggregata ssp. aggregata Scarlet gilia Perennial herb 2
Ipomopsis aggregata ssp. bridgesii Bridge's gilia Perennial herb  
Ipomopsis aggregata ssp. formosissima Western scarlet gilia Perennial herb  
Ipomopsis congesta Ball headed gilia Perennial herb  
Ipomopsis congesta ssp. congesta Ball headed gilia Perennial herb  
Ipomopsis congesta ssp. montana Mountain ball headed gilia Perennial herb  
Ipomopsis congesta ssp. palmifrons Ball headed gilia Perennial herb  
Iris hartwegii Hartweg's iris Perennial herb 4
Iris hartwegii ssp. hartwegii Hartweg's iris Perennial herb 1
Iris missouriensis Western blue flag Perennial herb 25
Iris purdyi Purdy's iris Perennial herb 2
Isopyrum occidentale Western false rue anemone Perennial herb  
Isopyrum stipitatum Siskiyou rue anemone Perennial herb  
Iva axillaris Povertyweed Perennial herb  
Iva axillaris ssp. robustior Poverty weed Perennial herb  
Ivesia aperta Sierra valley mousetail Perennial herb  
Ivesia aperta var. aperta Sierra valley ivesia Perennial herb  
Ivesia baileyi Bailey's ivesia Perennial herb  
Ivesia baileyi var. baileyi Bailey's ivesia Perennial herb  
Ivesia lycopodioides ssp. lycopodioides Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. megalopetala Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. scandularis Clubmoss ivesia Perennial herb  
Ivesia paniculata Ash creek ivesia Perennial herb  
Ivesia sericoleuca Plumas ivesia Perennial herb  
Ivesia webberi Webber's ivesia Perennial herb  
Juncus balticus Wire rush Perennial grass 19
Juncus balticus ssp. ater Baltic rush Perennial grass 1
Juncus brachyphyllus Short leaved rush Perennial grass  
Juncus bufonius var. occidentalis Round fruited toad rush Perennial grass  
Juncus confusus Colorado rush Perennial grass  
Juncus covillei var. covillei Coville's rush Perennial grass  
Juncus covillei var. obtusatus Coville's rush Perennial grass  
Juncus dubius Mariposa rush Perennial grass 1
Juncus dudleyi Dudley's rush Perennial grass 1
Juncus effusus var. brunneus Common bog rush Perennial grass 3
Juncus effusus var. exiguus Common bog rush Perennial grass  
Juncus effusus var. gracilis Slender common rush Perennial grass  
Juncus effusus var. pacificus Pacific bog rush Perennial grass 7
Juncus ensifolius Sword leaved rush Perennial grass 7
Juncus falcatus var. falcatus Sickle leafed rush Perennial grass  
Juncus hesperius Coast or bog rush Perennial grass 3
Juncus howellii Howell's rush Perennial grass  
Juncus lesueurii Dune rush Perennial grass 2
Juncus macrandrus Long anthered rush Perennial grass  
Juncus marginatus var. marginatus Red anthered rush Perennial grass (rhizomatous)  
Juncus mertensianus Merten's rush Perennial grass 1
Juncus mexicanus Mexican rush Perennial grass 12
Juncus nevadensis Sierra rush Perennial grass 1
Juncus nevadensis var. nevadensis Nevada or sierran rush Perennial grass  
Juncus nodosus Knotted rush Perennial grass (rhizomatous) 1
Juncus occidentalis Slender juncus Perennial grass 4
Juncus orthophyllus Straight leaved rush Perennial grass 1
Juncus parryi Parry's rush Perennial grass  
Juncus tenuis Slender rush Perennial grass 9
Juncus torreyi Torrey's rush Perennial grass 5
Juncus trilocularis Perennial grass  
Juncus xiphioides Iris leaved rush Perennial grass 16
Kelloggia galioides Kelloggia Perennial herb  
Kobresia bellardii Seep kobresia Perennial grass (rhizomatous)  
Kochia americana Red sage Perennial herb  
Koeleria macrantha June grass Perennial grass 30
Kumlienia hystricula Waterfall false buttercup Perennial herb  
Kyhosia bolanderi Bolander's madia Perennial herb  
Lactuca tatarica Blue lettuce Perennial herb  
Lactuca tatarica ssp. pulchella Blue lettuce Perennial herb  
Lactuca tatarica var. pulchella Blue lettuce Perennial herb  
Ladeania lanceolata Lance-leaved scurf-pea Perennial herb  
Lathyrus brownii Brown's brush pea Perennial herb  
Lathyrus lanszwertii Nevada pea Perennial herb  
Lathyrus lanszwertii var. aridus Dryland nevada pea Perennial herb  
Lathyrus lanszwertii var. lanszwertii Nevada pea Perennial herb  
Lathyrus nevadensis Sierra pea Perennial herb  
Lathyrus nevadensis ssp. lanceolatus Sierra pea Perennial herb  
Lathyrus nevadensis ssp. nevadensis Sierra pea Perennial herb  
Lathyrus nevadensis var. nevadensis Sierra nevada pea Perennial herb  
Lemna minor Smaller duckweed Perennial herb 3
Lemna minuscula Least duckweed Perennial herb  
Lemna minuta Least duckweed Perennial herb  
Lemna trisulca Star duckweed Perennial herb  
Lemna turionifera Turion duckweed Perennial herb  
Lemna valdiviana Duckweed Perennial herb  
Lepidium fremontii var. fremontii Desert pepper grass Perennial herb 4
Lepidium fremontii var. stipitatum Desert pepper grass Perennial herb 4
Lepidium montanum var. canescens Mountain pepper grass Perennial herb 1
Lepidium montanum var. cinereum Mountain pepper grass Perennial herb 1
Lepidium montanum var. montanum Mountain pepper grass Perennial herb 1
Lepidium ramosissimum var. bourgeauanum Branched pepper grass Perennial herb  
Leptodactylon jaegeri Jaeger's prickly phlox Perennial herb  
Lesquerella kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. bernardina San bernardino mtns. bladderpod Perennial herb  
Lesquerella kingii ssp. kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. latifolia Limestone bladderpod Perennial herb  
Lesquerella occidentalis ssp. occidentalis Western bladder pod Perennial herb  
Lessingia filaginifolia Common california aster Perennial herb 24
Lessingia filaginifolia var. californica Beach aster Perennial herb 10
Lessingia filaginifolia var. filaginifolia Common california aster Perennial herb 9
Leucocrinum montanum Sand lily Perennial herb  
Lewisia kelloggii Kellogg's lewisia Perennial herb  
Lewisia kelloggii ssp. hutchisonii Sierra valley lewisia Perennial herb  
Lewisia leana Quill leaved lewisia Perennial herb 2
Lewisia nevadensis Sierra lewisia Perennial herb 2
Lewisia pygmaea Pigmy bitter root Perennial herb 3
Lewisia rediviva Bitter root Perennial herb 4
Lewisia triphylla Three leaved lewisia Perennial herb  
Leymus Xmultiflorus Many flowered wild rye Perennial grass  
Leymus Xvancouverensis Vancouver wild rye Perennial grass  
Leymus cinereus Giant wild rye Perennial grass 8
Leymus condensatus Giant rye grass Perennial grass 35
Leymus mollis American dunegrass Perennial grass 9
Leymus mollis ssp. mollis American dune grass Perennial grass  
Leymus pacificus Gould's rye grass Perennial grass  
Leymus salinus ssp. mojavensis Mojave wild rye Perennial grass  
Leymus triticoides Alkali rye Perennial grass 31
Ligusticum grayi Gray's lovage Perennial herb  
Lilium pardalinum California tiger lily Perennial herb 23
Lilium pardalinum ssp. pardalinum Leopard lily Perennial herb 3
Lilium pardalinum ssp. shastense Shasta lily Perennial herb 1
Lilium washingtonianum Washington lily Perennial herb 6
Lilium washingtonianum ssp. washingtonianum Typical washington lily Perennial herb 1
Limosella subulata Delta mudwort Perennial herb  
Linanthus floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. glaber Smooth many flowered linanthus Perennial herb  
Linanthus floribundus ssp. hallii Santa rosa mtns. linanthus Perennial herb  
Linanthus nuttallii Nuttall's linanthus Perennial herb 2
Linanthus nuttallii ssp. howellii Mt. tedoc linanthus Perennial herb  
Linanthus nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb  
Linanthus nuttallii ssp. pubescens Nuttall's hairy linanthus Perennial herb  
Linanthus pachyphyllus Sierra linanthus Perennial herb  
Linnaea borealis ssp. americana Twinflower Perennial herb 2
Linum lewisii Lewis' flax Perennial herb 37
Linum lewisii var. alpicola Alpine lewis' flax Perennial herb 1
Linum lewisii var. lewisii Lewis' flax Perennial herb 5
Listera caurina Northwest twayblade Perennial herb  
Listera cordata var. nephrophylla Heartleaf twayblade Perennial herb  
Lithophragma glabrum Bulbed woodland star Perennial herb  
Lithophragma parviflorum Pink woodland star Perennial herb 1
Lithophragma parviflorum var. parviflorum Pink woodland star Perennial herb  
Lithophragma tenellum Woodland star Perennial herb  
Lithospermum ruderale Western gromwell Perennial herb  
Lomatium bicolor Wasatch desertparsley Perennial herb  
Lomatium bicolor var. leptocarpum Slender fruited lomatium Perennial herb  
Lomatium canbyi Canby's lomatium Perennial herb  
Lomatium ciliolatum var. ciliolatum Yolla bolly biscuitroot Perennial herb  
Lomatium dissectum Fern leaved lomatium Perennial herb 3
Lomatium dissectum var. dissectum Fern leaved lomatium Perennial herb 2
Lomatium dissectum var. multifidum Fern leaved lomatium Perennial herb 1
Lomatium donnellii Donnell's biscuitroot Perennial herb  
Lomatium foeniculaceum Fennel leaved lomatium Perennial herb  
Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium Perennial herb  
Lomatium foeniculaceum ssp. macdougallii Desert biscuitroot Perennial herb  
Lomatium grayi Gray's lomatium Perennial herb 2
Lomatium hendersonii Henderson's lomatium Perennial herb  
Lomatium macrocarpum Large fruited lomatium Perennial herb 2
Lomatium nevadense Nevada lomatium Perennial herb  
Lomatium nevadense var. nevadense Nevada lomatium Perennial herb  
Lomatium nevadense var. parishii Parish's lomatium Perennial herb  
Lomatium nudicaule Pestle lomatium Perennial herb 3
Lomatium piperi Piper's lomatium Perennial herb  
Lomatium plummerae Plummer's lomatium Perennial herb  
Lomatium ravenii Raven's lomatium Perennial herb  
Lomatium ravenii var. paiutense Paiute lomatium Perennial herb  
Lomatium ravenii var. ravenii Raven's lomatium Perennial herb  
Lomatium roseanum Biscuitroot Perennial herb  
Lomatium tracyi Tracy's lomatium Perennial herb  
Lomatium triternatum Lewis's lomatium Perennial herb 1
Lomatium triternatum var. macrocarpum Large fruited lewis' lomatium Perennial herb  
Lomatium triternatum var. triternatum Lewis' lomatium Perennial herb  
Lomatium utriculatum Hog fennel Perennial herb 2
Lomatium vaginatum Sheathed lomatium Perennial herb  
Lotus aboriginus Rose flowered lotus Perennial herb 1
Lotus argophyllus Silver birds foot trefoil Perennial herb 1
Lotus argophyllus var. adsurgens San clemente island bird's foot trefoil Perennial herb  
Lotus argophyllus var. argenteus Channel islands silver lotus Perennial herb 1
Lotus argophyllus var. argophyllus Southern california silver lotus Perennial herb  
Lotus argophyllus var. fremontii Fremont's silver lotus Perennial herb  
Lotus argophyllus var. niveus Santa cruz island silverlotus Perennial herb  
Lotus argyraeus Canyon birdsfoot trefoil Perennial herb  
Lotus argyraeus var. argyraeus Canyon lotus Perennial herb  
Lotus argyraeus var. multicaulis Scrub lotus Perennial herb  
Lotus argyraeus var. notitius Providence mtns. lotus Perennial herb  
Lotus benthamii Bentham's deerweed Perennial herb  
Lotus crassifolius Broad leaved lotus Perennial herb 7
Lotus crassifolius var. crassifolius Broad leaved lotus Perennial herb 2
Lotus crassifolius var. otayensis Otay mtn. lotus Perennial herb 10
Lotus formosissimus Coast lotus Perennial herb 9
Lotus grandiflorus Large leaved lotus Perennial herb 3
Lotus grandiflorus var. grandiflorus Chaparral lotus Perennial herb  
Lotus grandiflorus var. macranthus Mountain chaparral lotus Perennial herb  
Lotus haydonii Pygmy lotus Perennial herb  
Lotus heermannii Heermann's lotus Perennial herb 3
Lotus heermannii var. heermannii Heermann's lotus Perennial herb 1
Lotus heermannii var. orbicularis Round leaved heermann's lotus Perennial herb  
Lotus incanus Woolly lotus Perennial herb  
Lotus junceus Rush lotus Perennial herb 2
Lotus junceus var. biolettii Bioletti's rush lotus Perennial herb  
Lotus junceus var. junceus Rush lotus Perennial herb  
Lotus nevadensis Sierra lotus Perennial herb  
Lotus nevadensis var. davidsonii Davidson's sierra nevada lotus Perennial herb  
Lotus nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Lotus oblongifolius Narrow leaved lotus Perennial herb 1
Lotus oblongifolius var. cupreus Copper flowered bird's foot trefoil Perennial herb  
Lotus oblongifolius var. oblongifolius Narrow leaved lotus Perennial herb 1
Lotus pinnatus Pinnate lotus Perennial herb  
Lotus procumbens Silky california broom Perennial herb, Shrub  
Lotus procumbens var. jepsonii Jepson's california broom Perennial herb, Shrub  
Lotus procumbens var. procumbens Silky california broom Perennial herb, Shrub  
Lotus rigidus Desert lotus Perennial herb  
Lotus scoparius Deerweed Perennial herb 22
Lotus scoparius var. brevialatus Short winged deerweed Perennial herb  
Lotus scoparius var. scoparius Deerweed Perennial herb  
Lotus stipularis Stipulate lotus Perennial herb  
Lotus stipularis var. ottleyi Ottley's stipulate lotus Perennial herb  
Lotus stipularis var. stipularis Stipulate lotus Perennial herb  
Lotus yollabolliensis Yolla bolly mtns. bird's foot trefoil Perennial herb 1
Ludwigia palustris Marsh purslane Perennial herb (aquatic)  
Lupinus Xinyoensis Perennial herb  
Lupinus albicaulis var. albicaulis Sicklekeel lupine Perennial herb  
Lupinus andersonii Anderson's lupine Perennial herb  
Lupinus angustiflorus Narrow flowered lupine Perennial herb  
Lupinus arbustus Long spurred lupine Perennial herb  
Lupinus argenteus Silvery lupine Perennial herb 7
Lupinus argenteus var. argenteus Silvery lupine Perennial herb  
Lupinus argenteus var. heteranthus Silvery lupine Perennial herb 3
Lupinus argenteus var. meionanthus Lake tahoe lupine Perennial herb  
Lupinus breweri Brewer's lupine Perennial herb 2
Lupinus breweri var. breweri Brewer's lupine Perennial herb  
Lupinus croceus Mt. eddy lupine Perennial herb 1
Lupinus grayi Gray's lupine Perennial herb 2
Lupinus latifolius Broad leaf lupine Perennial herb 4
Lupinus latifolius var. columbianus Broad leaved lupine Perennial herb  
Lupinus lepidus Tidy lupine Perennial herb 1
Lupinus lepidus var. confertus Clustered tidy lupine Perennial herb  
Lupinus lepidus var. lobbii Lobb's lupine Perennial herb  
Lupinus lepidus var. sellulus Stool lupine Perennial herb  
Lupinus lepidus var. utahensis Utah tidy lupine Perennial herb  
Lupinus leucophyllus Velvet lupine Perennial herb  
Lupinus nevadensis Nevada lupine Perennial herb  
Lupinus obtusilobus Satin lupine Perennial herb  
Lupinus onustus Northern lupine Perennial herb 1
Lupinus polyphyllus Bog lupine Perennial herb 26
Lupinus polyphyllus var. burkei Large leaved lupine Perennial herb 5
Lupinus saxosus Rock lupine Perennial herb  
Lupinus tidestromii var. layneae Layne's lupine Perennial herb (rhizomatous)  
Lupinus tidestromii var. tidestromii Tidestrom's lupine Perennial herb (rhizomatous)  
Luzula comosa Hairy wood rush Perennial grass 4
Luzula comosa var. laxa Hairy wood rush Perennial grass 3
Lycopus asper Rough bugleweed Perennial herb  
Lycopus uniflorus Northern bugleweed Perennial herb  
Lycurus setosus Bristly wolfstail Perennial grass 2
Lyrocarpa coulteri var. palmeri Coulter's lyrepod Perennial herb  
Machaeranthera asteroides Hoary aster Perennial herb  
Machaeranthera asteroides var. asteroides Hoary aster Perennial herb  
Machaeranthera asteroides var. lagunensis Laguna mtns. aster Perennial herb  
Machaeranthera canescens Hoary aster Perennial herb 1
Machaeranthera canescens var. canescens Hoary aster Perennial herb  
Machaeranthera canescens var. incana Hoary aster Perennial herb  
Machaeranthera canescens var. leucanthemifolia Hoary aster Perennial herb  
Machaeranthera canescens var. shastensis Shasta aster Perennial herb  
Machaeranthera canescens var. ziegleri Ziegler's aster Perennial herb  
Machaeranthera juncea Rush like bristleweed Perennial herb  
Machaeranthera pinnatifida var. gooddingii Goodding's aster Perennial herb  
Madia bolanderi Bolander's tarweed Perennial herb  
Madia madioides Forest madia Perennial herb 1
Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley Perennial herb 2
Maianthemum stellatum Starry false lily of the valley Perennial herb 17
Malaxis monophyllos ssp. brachypoda Adder's mouth Perennial herb (bulb)  
Malvella leprosa Alkali mallow Perennial herb 3
Marah fabaceus Manroot Perennial herb, Vine 5
Marah fabaceus var. agrestis Wild cucumber Perennial herb, Vine 3
Marah fabaceus var. fabaceus California manroot Perennial herb, Vine 3
Marah horridus Sierran wild cucumber Perennial herb, Vine  
Marah macrocarpus Southern wild cucumber Perennial herb, Vine 5
Marah macrocarpus var. macrocarpus Southern wild cucumber Perennial herb, Vine 1
Marah macrocarpus var. major Southern wild cucumber Perennial herb, Vine 1
Marah oreganus Manroot Perennial herb, Vine 3
Maurandya antirrhiniflora ssp. antirrhiniflora Violet twining snapdragon Perennial herb 2
Maurandya petrophila Rock haurandya Perennial herb  
Melica bulbosa Oniongrass Perennial grass 2
Melica bulbosa var. inflata Oniongrass Perennial grass 2
Melica californica California melic Perennial grass 26
Melica californica var. californica California melicgrass Perennial grass 2
Melica fugax Small onion grass Perennial grass  
Melica geyeri var. aristulata Geyer's onion grass Perennial grass  
Melica stricta Nodding melica Perennial grass  
Melica stricta var. albicaulis Nodding melica Perennial grass  
Melica stricta var. stricta Rock melicgrass Perennial grass  
Melica subulata Alaska melic Perennial grass 1
Menodora scoparia Broom tvinberry Perennial herb 2
Mentha arvensis American wild mint Perennial herb 6
Mentha canadensis Wild mint Perennial herb 6
Mentzelia laevicaulis Giant blazingstar Perennial herb 6
Mentzelia multiflora ssp. longiloba Many flowered mentzelia Perennial herb  
Mentzelia multiflora var. longiloba Adonis blazingstar Perennial herb  
Menyanthes trifoliata Bogbean Perennial herb 2
Mertensia ciliata Ciliate lungwort Perennial herb  
Mertensia ciliata var. stomatechoides Streamside bluebells Perennial herb  
Mertensia cusickii Toiyabe bluebells Perennial herb  
Mertensia longiflora Long flower bluebells Perennial herb  
Mertensia oblongifolia Sagebrush bluebells Perennial herb  
Mertensia oblongifolia var. oblongifolia Sagebrush bluebells Perennial herb  
Micranthes aprica Sierra saxifrage Perennial herb  
Micranthes integrifolia Smooth leaf saxifrage Perennial herb  
Micranthes nidifica Peak saxifrage Perennial herb  
Micranthes odontoloma Brook saxifrage Perennial herb 1
Micranthes oregana Bog saxifrage Perennial herb  
Micranthes tolmiei Tolmie's saxifrage Perennial herb  
Microseris laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. siskiyouensis Siskiyou microseris Perennial herb  
Microseris laciniata var. siskiyouensis Cutleaf silverpuffs Perennial herb  
Microseris nutans Nodding microceris Perennial herb  
Mimulus glabratus var. glabratus Roundleaf monkeyflower Perennial herb (rhizomatous)  
Mimulus lewisii Lewis' monkey flower Perennial herb 12
Mimulus moschatus Musk monkeyflower Perennial herb 2
Mimulus moschatus var. longiflorus Muskflower Perennial herb  
Mimulus moschatus var. moschatus Muskflower Perennial herb  
Mimulus primuloides Primrose monkeyflower Perennial herb 3
Mimulus primuloides ssp. linearifolius Primrose monkeyflower Perennial herb 3
Mimulus primuloides ssp. primuloides Primrose monkeyflower Perennial herb  
Mimulus primuloides var. linearifolius Primrose monkeyflower Perennial herb 3
Mimulus primuloides var. pilosellus Primrose monkeyflower Perennial herb  
Mimulus primuloides var. primuloides Primrose monkeyflower Perennial herb  
Mimulus tilingii var. tilingii Tiling's monkeyflower Perennial herb  
Minuartia nuttallii ssp. fragilis Brittle sandwort Perennial herb  
Minuartia nuttallii ssp. gracilis Nuttall's sandwort Perennial herb  
Minuartia nuttallii ssp. gregaria Gregarious sandwort Perennial herb  
Mirabilis bigelovii Bigelow's desert four o'clock Perennial herb 3
Mirabilis bigelovii var. bigelovii Pale stemmed four o clock Perennial herb 1
Mirabilis bigelovii var. retrorsa Wishbone Perennial herb  
Mirabilis californica Wishbone bush Perennial herb 12
Mirabilis comata Hairy tuft four o'clock Perennial herb  
Mirabilis laevis Desert wishbone bush Perennial herb 3
Mirabilis laevis var. laevis Desert wishbone bush Perennial herb  
Mirabilis laevis var. retrorsa Wishbone bush Perennial herb  
Mirabilis laevis var. villosa Wishbone bush Perennial herb 3
Mirabilis oblongifolia Oblong leafed four o'clock Perennial herb 1
Mirabilis pumila Little umbrella wort Perennial herb  
Mitella breweri Brewer's miterwort Perennial herb  
Mitella caulescens Stemmed miterwort Perennial herb  
Mitella diversifolia Angle leafed miterwort Perennial herb  
Mitella ovalis Coastal miterwort Perennial herb 2
Mitella pentandra Alpine bishop's cap Perennial herb 1
Mitella trifida Three parted miterwort Perennial herb  
Monanthochloe littoralis Salt cedar Perennial grass 1
Monardella australis ssp. jokersti Jokerstís monardella Perennial herb  
Monardella cinerea Gray monardella Perennial herb (rhizomatous)  
Monardella crispa Crisp monardella Perennial herb (rhizomatous) 1
Monardella frutescens San luis obispo monardella Perennial herb (rhizomatous)  
Monardella glauca Grey monardella Perennial herb 1
Monardella linoides ssp. viminea Willowy monardella Perennial herb 8
Monardella nana ssp. arida Desert monardella Perennial herb 1
Monardella nana ssp. nana Little monardella Perennial herb  
Monardella nana ssp. tenuiflora Short flowered monardella Perennial herb  
Monardella odoratissima Mountain monardella Perennial herb 21
Monardella odoratissima ssp. glauca Mountain mint Perennial herb 1
Monardella odoratissima ssp. pallida Pale mountain monardella Perennial herb  
Monardella odoratissima ssp. parvifolia Matted mountain monardella Perennial herb  
Monardella rubella Grey monardella Perennial herb  
Monardella sheltonii Shelton's coyote mint Perennial herb 1
Monardella siskiyouensis Siskiyou coyote mint Perennial herb 3
Monardella villosa ssp. globosa Robust monardella Perennial herb (rhizomatous) 3
Monardella villosa var. subglabra Coyote mint Perennial herb 3
Monardella viridis ssp. saxicola Rock monardella Perennial herb (rhizomatous) 1
Monardella viridis ssp. viridis Green monardella Perennial herb (rhizomatous)  
Montia chamissoi Spring beauty Perennial herb  
Muhlenbergia andina Foxtail muhly Perennial grass  
Muhlenbergia asperifolia Scratchgrass Perennial grass 1
Muhlenbergia dumosa Bamboo muhly Perennial grass 7
Muhlenbergia jonesii Jones' muhly Perennial grass  
Muhlenbergia richardsonis Richardson's muhly Perennial grass  
Muhlenbergia thurberi Thurber's muhly Perennial grass  
Muilla clevelandii San diego goldenstar Perennial herb (bulb)  
Muilla transmontana Great basin muilla Perennial herb  
Myriophyllum hippuroides Western milfoil Perennial herb (aquatic)  
Myriophyllum quitense Andean watermilfoil Perennial herb (aquatic)  
Myriophyllum sibiricum Siberian water milfoil Perennial herb (aquatic)  
Nama lobbii Lobb's nama Perennial herb 1
Nassella cernua Nodding needlegrass Perennial grass 24
Nassella lepida Small flowered stipa Perennial grass 27
Nassella pulchra Purple needlegrass Perennial grass 42
Nasturtium officinale Watercress Perennial herb (aquatic) 3
Nestotus stenophyllus Narrowleaf mock goldenweed Perennial herb  
Nitrophila occidentalis Western nitrophila Perennial herb  
Nothocalais alpestris Alpine prairie dandelion Perennial herb  
Nothocalais troximoides False agoseris Perennial herb  
Nuphar luteum ssp. polysepalum Indian pond lily Perennial herb (aquatic)  
Nuphar polysepala Rocky mountain pond-lily Perennial herb (aquatic) 3
Oenothera caespitosa Fragrant evening primrose Perennial herb 8
Oenothera caespitosa ssp. marginata Large white desert primrose Perennial herb  
Oenothera cespitosa Fragrant evening-primrose Perennial herb 8
Oenothera cespitosa ssp. marginata Fragrant evening-primrose Perennial herb  
Oenothera elata Evening primrose Perennial herb 17
Oenothera elata ssp. hirsutissima Evening primrose Perennial herb 3
Oenothera elata ssp. hookeri Evening primrose Perennial herb 18
Oenothera flava Yellow evening primrose Perennial herb  
Oenothera flava ssp. flava Dandelion evening primrose Perennial herb  
Olsynium douglasii Douglas' grasswidow Perennial herb 4
Olsynium douglasii var. douglasii Douglas' grasswidow Perennial herb 4
Opuntia californica var. californica Snake cholla Perennial herb (stem succulent) 5
Opuntia munzii Munz's cholla Perennial herb (stem succulent) 2
Oreocarya schoolcraftii Schoolcraft's cryptantha Perennial herb  
Oreostemma alpigenum Tundra aster Perennial herb 3
Oreostemma alpigenum var. andersonii Tundra aster Perennial herb 1
Oreostemma elatum Plumas alpine aster Perennial herb  
Orobanche californica California orobanche Perennial herb (parasitic)  
Orobanche californica ssp. jepsonii Jepson's california broom rape Perennial herb (parasitic)  
Orobanche fasciculata Clustered broomrape Perennial herb (parasitic)  
Orobanche ludoviciana var. arenosa Suksdorf's broom rape Perennial herb  
Orobanche uniflora Naked broom rape Perennial herb (parasitic)  
Orobanche uniflora var. purpurea Naked broom rape Perennial herb (parasitic)  
Oryzopsis exigua Little ricegrass Perennial grass  
Osmorhiza berteroi Sweet cicely Perennial herb 3
Osmorhiza chilensis Western sweet cicely Perennial herb 3
Osmorhiza occidentalis Western sweet cicely Perennial herb 2
Oxalis albicans ssp. californica Californica wood sorrel Perennial herb  
Oxalis albicans ssp. pilosa Hairy wood sorrel Perennial herb  
Oxalis corniculata ssp. pilosa Hairy wood sorrel Perennial herb  
Oxypolis occidentalis Western cow bane Perennial herb  
Oxytenia acerosa Copperweed Perennial herb  
Packera cana Woolly groundsel Perennial herb  
Packera eurycephala Widehead groundsel Perennial herb  
Packera eurycephala var. eurycephala Widehead groundsel Perennial herb  
Packera eurycephala var. lewisrosei Lewis' groundsel Perennial herb  
Packera indecora Elegant groundsel Perennial herb  
Packera multilobata Lobeleaf groundsel Perennial herb  
Packera pauciflora Alpine groundsel Perennial herb  
Packera pseudaurea Falsegold groundsel Perennial herb  
Packera pseudaurea var. pseudaurea Falsegold groundsel Perennial herb  
Packera streptanthifolia Rocky mountain groundsel Perennial herb  
Packera subnuda Buek's groundsel Perennial herb  
Packera subnuda var. subnuda Cleftleaf groundsel Perennial herb  
Paeonia brownii Peony Perennial herb 1
Parnassia californica Grass of parnassus Perennial herb  
Pascopyrum smithii Western wheat grass Perennial grass 4
Paspalum distichum Knot grass Perennial grass 2
Pectiantia pentandra Alpine mitrewort Perennial herb 1
Pedicularis attollens Attol lousewort Perennial herb  
Pedicularis attollens ssp. attollens Little elephantshead Perennial herb  
Pedicularis attollens ssp. protogyna Little elephantshead Perennial herb  
Pedicularis centranthera Dwarf lousewort Perennial herb  
Pedicularis groenlandica Elephant head lousewort Perennial herb 2
Pedicularis groenlandica var. surrecta Elephant head lousewort Perennial herb 2
Pedicularis racemosa ssp. racemosa Sickletop lousewort Perennial herb  
Pedicularis semibarbata Pine woods lousewort Perennial herb  
Penstemon cinereus Gray beardtongue Perennial herb  
Penstemon cinicola Ash beardtongue Perennial herb  
Penstemon davidsonii Davidson's penstemon Perennial herb 8
Penstemon davidsonii var. davidsonii Davidson's beardtongue Perennial herb 2
Penstemon deustus Rock penstemon Perennial herb 2
Penstemon deustus var. pedicellatus Hot rock beardtongue Perennial herb  
Penstemon gracilentus Slender beardtongue Perennial herb 1
Penstemon heterodoxus Sierra penstemon Perennial herb  
Penstemon heterodoxus var. heterodoxus Sierra beardtongue Perennial herb  
Penstemon heterodoxus var. shastensis Shasta beardtongue Perennial herb  
Penstemon heterophyllus Foothill penstemon Perennial herb 40
Penstemon heterophyllus var. purdyi Purdy's foothill penstemon Perennial herb 1
Penstemon humilis Low beardtongue Perennial herb  
Penstemon humilis ssp. humilis Low beardtongue Perennial herb  
Penstemon humilis var. humilis Low beardtongue Perennial herb  
Penstemon janishiae Antelope valley beardtongue Perennial herb 1
Penstemon laetus Mountain blue penstemon Perennial herb 1
Penstemon neotericus Derived penstemon Perennial herb 1
Penstemon newberryi Mountain pride Perennial herb 15
Penstemon newberryi var. berryi Berry's mountain pride Perennial herb  
Penstemon newberryi var. newberryi Newberry's penstemon Perennial herb 1
Penstemon roezlii Regel's mountain penstemon Perennial herb 1
Penstemon rydbergii Rydberg's penstemon Perennial herb 23
Penstemon rydbergii var. oreocharis Meadow beardtongue Perennial herb 1
Penstemon speciosus Showy penstemon Perennial herb 13
Penstemon spectabilis var. subviscosis Showy penstemon Perennial herb  
Perideridia bolanderi Bolander's yampah Perennial herb 2
Perideridia bolanderi ssp. bolanderi Bolander's yampah Perennial herb  
Perideridia bolanderi ssp. involucrata Bolander's yampah Perennial herb  
Perideridia gairdneri Gairdner's yampah Perennial herb 2
Perideridia gairdneri ssp. gairdneri Gairdner's yampah Perennial herb  
Perideridia kelloggii Yampah Perennial herb 5
Perideridia lemmonii Lemmon's yampah Perennial herb  
Perideridia oregana Oregon yampah Perennial herb 1
Perideridia parishii Parish's yampah Perennial herb  
Perideridia parishii ssp. latifolia Parish's yampah Perennial herb  
Persicaria amphibia Water smartweed Perennial herb (aquatic) 2
Phacelia cinerea Ashy phacelia Perennial herb 3
Phacelia dalesiana Scott mtn. phacelia Perennial herb  
Phacelia hastata White leafed phacelia Perennial herb  
Phacelia hastata ssp. compacta Timberline phacelia Perennial herb  
Phacelia hastata ssp. hastata Mountain phacelia Perennial herb  
Phacelia hastata var. compacta Timberline phacelia Perennial herb  
Phacelia hastata var. hastata Mountain phacelia Perennial herb  
Phacelia heterophylla Varileaf phacelia Perennial herb 1
Phacelia heterophylla ssp. virgata Varied leaf phacelia Perennial herb  
Phacelia heterophylla var. virgata Varied leaf phacelia Perennial herb  
Phacelia hydrophylloides Water leaf phacelia Perennial herb  
Phacelia imbricata Imbricate phacelia Perennial herb 5
Phacelia imbricata ssp. patula Imbricate phacelia Perennial herb  
Phacelia mutabilis Changeable phacelia Perennial herb  
Phacelia nemoralis ssp. nemoralis Woods phacelia Perennial herb  
Phacelia nemoralis ssp. oregonensis Oregon woods phacelia Perennial herb  
Phacelia oreopola ssp. oreopola San gabriel mtns. imbricate phacelia Perennial herb  
Phacelia procera Tall phacelia Perennial herb  
Phacelia ramosissima Branching phacelia Perennial herb 4
Phacelia ramosissima var. eremophila Branching phacelia Perennial herb 4
Phacelia ramosissima var. latifolia Branching phacelia Perennial herb 4
Phacelia ramosissima var. montereyensis Monterey branching phacelia Perennial herb 4
Phacelia ramosissima var. ramosissima Branching phacelia Perennial herb 4
Phacelia ramosissima var. subglabra Branching phacelia Perennial herb 4
Phacelia sericea ssp. ciliosa Silky phacelia Perennial herb  
Phalacroseris bolanderi var. bolanderi Bolander's mock dandelion Perennial herb  
Phalacroseris bolanderi var. coronata Bolander's mock dandelion Perennial herb  
Phalaris arundinacea Reed canarygrass Perennial grass 8
Phalaris arundinacea var. picta Ribbongrass Perennial grass 8
Phleum alpinum Timothy grass Perennial grass 2
Phlox austromontana Southern mountain phlox Perennial herb  
Phlox diffusa Spreading phlox Perennial herb 3
Phlox douglasii Douglas' phlox Perennial herb 1
Phlox douglasii ssp. rigida Stiff douglas' phlox Perennial herb 1
Phlox hoodii Spiny phlox Perennial herb  
Phlox hoodii ssp. canescens Hood's phlox Perennial herb  
Phlox hoodii ssp. lanata Carpet phlox Perennial herb  
Phlox hoodii ssp. muscoides Musk phlox Perennial herb 1
Phlox longifolia Longleaf phlox Perennial herb  
Phlox longifolia ssp. brevifolia Longleaf phlox Perennial herb  
Phlox longifolia ssp. longifolia Longleaf phlox Perennial herb  
Phlox muscoides Moss phlox Perennial herb 2
Phlox speciosa Showy phlox Perennial herb  
Phlox speciosa ssp. nitida Showy phlox Perennial herb  
Phlox speciosa ssp. occidentalis Western showy phlox Perennial herb  
Phlox stansburyi Cold desert phlox Perennial herb  
Phlox stansburyi ssp. stansburyi Cold-desert phlox Perennial herb  
Phlox stansburyi ssp. superba Cold-desert phlox Perennial herb  
Phlox stansburyi var. brevifolia Cold-desert phlox Perennial herb  
Phlox viridis Green phlox Perennial herb  
Phlox viridis ssp. compacta Green phlox Perennial herb  
Phlox viridis ssp. longipes Green phlox Perennial herb  
Phoenicaulis cheiranthoides Dagger pod Perennial herb 1
Phoradendron densum Dense mistletoe Perennial herb  
Phoradendron pauciflorum Fir mistletoe Perennial herb  
Phragmites australis Common reed Perennial grass 1
Phragmites australis ssp. americanus Perennial grass  
Phragmites australis ssp. berlandieri Perennial grass  
Phyla nodiflora var. incisa Common lippia Perennial herb 12
Phyla nodiflora var. nodiflora Common lippia Perennial herb 12
Phyla nodiflora var. rosea Garden lippia Perennial herb 12
Physaria occidentalis Western bladderpod Perennial herb  
Physaria occidentalis ssp. occidentalis Western bladder pod Perennial herb  
Pinguicula macroceras var. macroceras California butterwort Perennial herb (carnivorous)  
Pinguicula vulgaris ssp. macroceras Horned butterwort Perennial herb (carnivorous)  
Piperia colemanii Coleman's piperia Perennial herb  
Piperia unalascensis Alaska piperia Perennial herb  
Piptatherum exiguum Little ricegrass Perennial grass  
Piptatherum micranthum Small flowered rice grass Perennial grass  
Pityopus californica Pityopus Perennial herb (mycoparasitic)  
Plagiobothrys mollis Downy popcorn flower Perennial herb  
Plagiobothrys mollis var. mollis Downy popcorn flower Perennial herb  
Plantago maritima var. juncoides Rush like maritime plantain Perennial herb 4
Platanthera dilatata Scentbottle Perennial herb  
Platanthera dilatata var. leucostachys Sierra bog orchid Perennial herb  
Platanthera hyperborea Green flowered bog orchid Perennial herb  
Platanthera leucostachys White flowered bog orchid Perennial herb  
Pleiacanthus spinosus Thorn skeletonweed Perennial herb  
Pleuraphis jamesii Galleta Perennial grass 9
Pleuraphis rigida Galletta grass Perennial grass 7
Pleuricospora fimbriolata Fringed pinesap Perennial herb (mycoparasitic)  
Pleuropogon davyi Davy's semaphore grass Perennial grass (rhizomatous)  
Poa ampla Western blue grass Perennial grass 15
Poa cusickii Cusick's bluegrass Perennial grass  
Poa cusickii ssp. cusickii Cusick's blue grass Perennial grass  
Poa cusickii ssp. epilis Skyline bluegrass Perennial grass  
Poa cusickii ssp. pallida Skyline blue grass Perennial grass  
Poa fendleriana Muttongrass Perennial grass 4
Poa fendleriana ssp. longiligula Fendler's blue grass Perennial grass  
Poa juncifolia Western blue grass Perennial grass 14
Poa leptocoma Marsh bluegrass Perennial grass  
Poa leptocoma ssp. leptocoma Bog blue grass Perennial grass  
Poa nevadensis Sierra blue grass Perennial grass 14
Poa pattersonii Patterson's blue grass Perennial grass  
Poa pratensis ssp. agassizensis Agassiz kentucky blue grass Perennial grass  
Poa secunda Pine bluegrass Perennial grass 18
Poa secunda ssp. juncifolia Rush blue grass Perennial grass 14
Poa secunda ssp. secunda Sandberg's bluegrass Perennial grass 18
Poa wheeleri Hooker's bluegrass Perennial grass 1
Polemonium occidentale Great polemonium Perennial herb 3
Polemonium occidentale ssp. occidentale Western polemonium Perennial herb 2
Polyctenium fremontii Fremont's polyctenium Perennial herb  
Polyctenium fremontii var. confertum Flat pod polyctenium Perennial herb  
Polyctenium fremontii var. fremontii Fremont's polyctenium Perennial herb  
Polyctenium williamsiae Williams's combleaf Perennial herb  
Polygala subspinosa Spiny milkwort Perennial herb  
Polygonum amphibium Water smartweed Perennial herb 2
Polygonum amphibium var. emersum Water smartweed Perennial herb (aquatic) 1
Polygonum amphibium var. stipulaceum Water smartweed Perennial herb 1
Polygonum bistortoides Western knotweed Perennial herb  
Polygonum davisiae Davis knotweed Perennial herb  
Polygonum hydropiperoides Water pepper Perennial herb  
Polygonum newberryi Newberry's smartweed Perennial herb  
Polygonum phytolaccifolium Pokeweed knotweed Perennial herb  
Polygonum punctatum Punctate smartweed Perennial herb 4
Polygonum shastense Shasta knotweed Perennial herb  
Potamogeton alpinus Alpine pondweed Perennial herb (aquatic)  
Potamogeton alpinus ssp. tenuifolius Alpine pondweed Perennial herb (aquatic)  
Potamogeton amplifolius Broad leaved pondweed Perennial herb (aquatic)  
Potamogeton diversifolius Rafinesque's pondweed Perennial herb (aquatic)  
Potamogeton epihydrus Ribbonleaf pondweed Perennial herb (rhizomatous)  
Potamogeton epihydrus ssp. nuttallii Nuttall's pondweed Perennial herb (rhizomatous)  
Potamogeton filiformis Slender leaved pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus Leafy pondweed Perennial herb (aquatic)  
Potamogeton foliosus ssp. fibrillosus Fibrous pondweed Perennial herb  
Potamogeton foliosus ssp. foliosus Leafy pondweed Perennial herb (aquatic)  
Potamogeton foliosus var. fibrillosus Fibrous pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus var. foliosus Pondweed Perennial herb (aquatic)  
Potamogeton gramineus Grass leaf pondweed Perennial herb (aquatic)  
Potamogeton illinoensis Pondweed Perennial herb (aquatic)  
Potamogeton latifolius Nevada pondweed Perennial herb (aquatic)  
Potamogeton natans Floating leaved pondweed Perennial herb (aquatic)  
Potamogeton nodosus Pondweed Perennial herb (aquatic)  
Potamogeton pectinatus Fennel pondweed Perennial herb (aquatic)  
Potamogeton pusillus Small pondweed Perennial herb (aquatic)  
Potamogeton pusillus var. pusillus Small pondweed Perennial herb (aquatic)  
Potamogeton pusillus var. tenuissimus Narrow leaved pondweed Perennial herb (aquatic)  
Potamogeton richardsonii Richardson's pondweed Perennial herb (aquatic)  
Potamogeton robbinsii Robbins's pondweed Perennial herb (rhizomatous)  
Potentilla basaltica Black rock potentilla Perennial herb  
Potentilla biennis Biennial cinquefoil Perennial herb 1
Potentilla breweri Brewer's cinquefoil Perennial herb 1
Potentilla diversifolia Varileaf cinquefoil Perennial herb  
Potentilla diversifolia var. diversifolia Varileaf cinquefoil Perennial herb  
Potentilla drummondii ssp. breweri Brewer's cinquefoil Perennial herb 1
Potentilla drummondii ssp. bruceae Bruce's cinquefoil Perennial herb 1
Potentilla drummondii ssp. drummondii Drummond's cinquefoil Perennial herb 2
Potentilla flabellifolia Fan leaved cinquefoil Perennial herb  
Potentilla glandulosa Gland cinquefoil Perennial herb 14
Potentilla glandulosa ssp. ashlandica Mountain cinquefoil Perennial herb  
Potentilla glandulosa ssp. ewanii Ewan's cinquefoil Perennial herb  
Potentilla glandulosa ssp. glandulosa Sticky cinquefoil Perennial herb  
Potentilla glandulosa ssp. globosa Common cinquefoil Perennial herb  
Potentilla glandulosa ssp. hansenii Hansen's cinquefoil Perennial herb  
Potentilla glandulosa ssp. nevadensis Nevada cinquefoil Perennial herb  
Potentilla glandulosa ssp. pseudorupestris False rock loving cinquefoil Perennial herb 1
Potentilla glandulosa ssp. reflexa Sticky cinquefoil Perennial herb  
Potentilla glaucophylla Blueleaf cinquefoil Perennial herb  
Potentilla gracilis Northwest cinquefoil Perennial herb 14
Potentilla gracilis var. elmeri Elmer's cinquefoil Perennial herb 1
Potentilla gracilis var. fastigiata Slender cinquefoil Perennial herb  
Potentilla gracilis var. flabelliformis Cupform leaf cinquefoil Perennial herb  
Potentilla gracilis var. gracilis Slender cinquefoil Perennial herb  
Potentilla gracilis var. pulcherrima White leaved cinquefoil Perennial herb  
Potentilla millefolia Cut leaf cinquefoil Perennial herb  
Potentilla newberryi Newberry's cinquefoil Perennial herb  
Potentilla palustris Marsh cinquefoil Perennial herb 5
Potentilla pensylvanica var. ovium Pennsylvania cinquefoil Perennial herb  
Potentilla pensylvanica var. pensylvanica Pennsylvania cinquefoil Perennial herb  
Potentilla pensylvanica var. strigosa Pennsylvania cinquefoil Perennial herb  
Primula conjugens Bonneville shooting star Perennial herb  
Primula hendersonii Mosquito bill Perennial herb 11
Primula jeffreyi Sierra shooting star Perennial herb 3
Primula pauciflora Beautiful shootingstar Perennial herb 6
Primula tetrandra Alpine shooting star Perennial herb 2
Prosartes hookeri var. hookeri Drops of gold Perennial herb 5
Prosartes hookeri var. parvifolia Drops of gold Perennial herb  
Prunella vulgaris Self heal Perennial herb 18
Prunella vulgaris var. lanceolata Mountain selfheal Perennial herb 8
Pseudognaphalium canescens ssp. beneolens Wright's cudweed Perennial herb 1
Pseudognaphalium canescens ssp. canescens Wright's cudweed Perennial herb 1
Pseudognaphalium canescens ssp. microcephalum Wright's cudweed Perennial herb  
Pseudognaphalium canescens ssp. thermale Wright's cudweed Perennial herb  
Pseudognaphalium thermale Small headed cudweed Perennial herb  
Pseudoroegneria spicata Bluebunch wheatgrass Perennial grass 4
Pseudoroegneria spicata ssp. spicata Bent grass Perennial grass 3
Pseudostellaria jamesiana Tubered starwort Perennial herb  
Psoralidium lanceolatum Scurf pea Perennial herb  
Pterospora andromedea Pine drops Perennial herb (parasitic)  
Ptilagrostis kingii King's ricegrass Perennial grass  
Puccinellia californica Sierra nevada alkali grass Perennial grass (rhizomatous)  
Puccinellia grandis Alaska alkali grass Perennial grass  
Puccinellia lemmonii Lemmon's alkali grass Perennial grass  
Puccinellia nuttalliana Nuttall's alkali grass Perennial grass 1
Pycnanthemum californicum California mint Perennial herb 4
Pyrola asarifolia Bog wintergreen Perennial herb  
Pyrola dentata Toothed wintergreen Perennial herb  
Pyrola picta White veined shinleaf Perennial herb  
Pyrrocoma apargioides Alpine pyrrocoma Perennial herb 1
Pyrrocoma carthamoides Largeflower goldenweed Perennial herb  
Pyrrocoma carthamoides var. cusickii Cusick's columbia pyrrocoma Perennial herb  
Pyrrocoma hirta Sticky pyrrocoma Perennial herb  
Pyrrocoma hirta var. hirta Sticky pyrrocoma Perennial herb  
Pyrrocoma hirta var. lanulosa Woolly pyrrocoma Perennial herb  
Pyrrocoma lanceolata Intermountain pyrrocoma Perennial herb  
Pyrrocoma lanceolata var. lanceolata Intermountain pyrrocoma Perennial herb  
Pyrrocoma lanceolata var. subviscosa Sticky intermountain pyrrocoma Perennial herb  
Pyrrocoma lucida Sticky pyrrocoma Perennial herb  
Pyrrocoma racemosa Racemose pyrrocoma Perennial herb  
Pyrrocoma racemosa var. paniculata Panicled pyrrocoma Perennial herb  
Pyrrocoma uniflora Single headed pyrrocoma Perennial herb  
Pyrrocoma uniflora var. uniflora Single headed pyrrocoma Perennial herb  
Raillardiopsis muirii Muir's raillardella Perennial herb (rhizomatous)  
Raillardiopsis scabrida Scabrid raillardella Perennial herb  
Ranunculus alismifolius Common water plantain buttercup Perennial herb  
Ranunculus alismifolius var. alismellus Slender buttercup Perennial herb  
Ranunculus alismifolius var. alismifolius Water plantain buttercup Perennial herb  
Ranunculus alismifolius var. hartwegii Common water plantain buttercup Perennial herb  
Ranunculus alismifolius var. lemmonii Common water plantain buttercup Perennial herb  
Ranunculus andersonii Anderson's buttercup Perennial herb  
Ranunculus aquatilis Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. aquatilis Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. capillaceus Threadleaf crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. diffusus Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. hispidulus White water crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. subrigidus Longbeak buttercup Perennial herb (aquatic)  
Ranunculus aquatilus var. subrigidus Perennial herb (aquatic)  
Ranunculus californicus Common buttercup Perennial herb 11
Ranunculus canus Hartweg's buttercup Perennial herb  
Ranunculus cymbalaria Alkali buttercup Perennial herb  
Ranunculus cymbalaria var. saximontanus Rocky mountain buttercup Perennial herb  
Ranunculus flammula Spearwort Perennial herb 1
Ranunculus flammula var. ovalis Greater creeping spearwort Perennial herb  
Ranunculus glaberrimus Smooth buttercup Perennial herb  
Ranunculus glaberrimus var. ellipticus Narrow leaved smooth buttercup Perennial herb  
Ranunculus glaberrimus var. glaberrimus Smooth buttercup Perennial herb  
Ranunculus longirostris Longbeak buttercup Perennial herb (aquatic)  
Ranunculus occidentalis Western buttercup Perennial herb 6
Ranunculus occidentalis var. dissectus Western buttercup Perennial herb  
Ranunculus occidentalis var. occidentalis Western buttercup Perennial herb  
Ranunculus occidentalis var. ultramontanus Western buttercup Perennial herb  
Ranunculus orthorhynchus Bloomer's buttercup Perennial herb  
Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup Perennial herb  
Ranunculus populago Cusick's buttercup Perennial herb  
Rhynchospora globularis var. globularis Round headed beaked rush Perennial grass (rhizomatous)  
Rorippa columbiae Columbia yellow cress Perennial herb (rhizomatous)  
Rorippa gambelii Gambel's water cress Perennial herb (rhizomatous)  
Rorippa gambellii Gambel's yellowcress Perennial herb (rhizomatous)  
Rorippa nasturtium-aquaticum Water cress Perennial herb (aquatic) 3
Rorippa sinuata Spreading yellow cress Perennial herb (aquatic)  
Rudbeckia californica var. californica California cone flower Perennial herb 6
Rudbeckia californica var. glauca Serpentine cone flower Perennial herb  
Rudbeckia californica var. intermedia California cone flower Perennial herb  
Rudbeckia occidentalis var. occidentalis Western cone flower Perennial herb 10
Rumex californicus California dock Perennial herb  
Rumex hymenosepalus Wild rhubarb Perennial herb  
Rumex lacustris Lake dock Perennial herb (aquatic)  
Rumex occidentalis Western dock Perennial herb 1
Rumex paucifolius Few leaved dock Perennial herb  
Rumex salicifolius Willow leaved dock Perennial herb 6
Rumex salicifolius var. crassus Willow leaved dock Perennial herb  
Rumex salicifolius var. denticulatus Smooth valved willow dock Perennial herb  
Rumex salicifolius var. lacustris Lake dock Perennial herb (aquatic)  
Rumex salicifolius var. salicifolius Willow dock Perennial herb 6
Rumex salicifolius var. transitorius Willow dock Perennial herb  
Rumex salicifolius var. triangulivalvis Willow dock Perennial herb  
Rumex transitorius Willow dock Perennial herb  
Rumex triangulivalvis Willow dock Perennial herb  
Rumex venosus Winged dock Perennial herb  
Sagina saginoides Alpine pearlwort Perennial herb  
Sagittaria cuneata Tule potato Perennial herb 1
Sagittaria latifolia Broad leaf arrowhead Perennial herb (aquatic) 11
Sagittaria montevidensis Giant arrowhead Perennial herb (aquatic) 1
Sagittaria montevidensis ssp. calycina Montevideo arrowhead Perennial herb (aquatic)  
Salicornia subterminalis Parish's glasswort Perennial herb 4
Sanguisorba officinalis ssp. microcephala Great burnet Perennial herb (rhizomatous) 2
Sanicula graveolens Sierra sanicle Perennial herb  
Sanicula tuberosa Turkey pea Perennial herb  
Sarcodes sanguinea Snow plant Perennial herb (mycoparasitic)  
Sarcostemma cynanchoides ssp. hartwegii Climbing milkweed Perennial herb, Vine 1
Sarcostemma hirtellum Rambling milkweed Perennial herb, Vine  
Satureja chandleri San miguel savory Perennial herb 6
Satureja douglasii Yerba buena Perennial herb 34
Satureja mimuloides Monkey flower savory Perennial herb 7
Saxifraga aprica Sierra saxifrage Perennial herb  
Saxifraga californica Greene's saxifrage Perennial herb  
Saxifraga fallax California saxifrage Perennial herb  
Saxifraga ferruginea Rusty hair saxifrage Perennial herb  
Saxifraga ferruginea var. ferruginea Russethair saxifrage Perennial herb  
Saxifraga ferruginea var. macounii Rusty hair saxifrage Perennial herb  
Saxifraga howellii Howell's saxifrage Perennial herb (rhizomatous)  
Saxifraga integrifolia Smooth leaf saxifrage Perennial herb  
Saxifraga marshallii Marshall's saxifrage Perennial herb  
Saxifraga nidifica Peak saxifrage Perennial herb  
Saxifraga nidifica var. nidifica Peak saifrage Perennial herb  
Saxifraga nuttallii Nuttall's saxifrage Perennial herb (rhizomatous)  
Saxifraga odontoloma Brook saxifrage Perennial herb 1
Saxifraga oregana Bog saxifrage Perennial herb  
Saxifraga rivularis Weak saxifrage Perennial herb  
Saxifraga tolmiei Tolmie's saxifrage Perennial herb  
Scheuchzeria palustris ssp. americana American scheuchzeria Perennial herb (rhizomatous aquatic)  
Scheuchzeria palustris var. americana American scheuchzeria Perennial herb (rhizomatous)  
Schoenoplectus acutus Hardstem bulrush Perennial grass 24
Schoenoplectus acutus var. occidentalis Tule Perennial grass 1
Schoenoplectus americanus Chairmaker's bulrush Perennial grass 17
Schoenoplectus fluviatilis River bulrush Perennial grass 1
Schoenoplectus pungens Common threesquare Perennial grass 2
Schoenoplectus pungens var. badius Common threesquare Perennial grass  
Schoenoplectus pungens var. longispicatus Common threesquare Perennial grass  
Schoenoplectus subterminalis Swaying bulrush Perennial grass (rhizomatous)  
Scirpus acutus var. occidentalis Hard stemmed tule Perennial grass 1
Scirpus americanus American tule Perennial grass 17
Scirpus californicus California tule Perennial grass 15
Scirpus clementis Yosemite bulrush Perennial grass  
Scirpus fluviatilis River bulrush Perennial grass 2
Scirpus heterochaetus Slender bulrush Perennial grass (rhizomatous)  
Scirpus maritimus Prairie bulrush Perennial grass 15
Scirpus microcarpus Mountain bog bulrush Perennial grass 19
Scirpus nevadensis Great basin bulrush Perennial grass  
Scirpus pumilus Dwarf bulrush Perennial grass (rhizomatous)  
Scirpus pungens Three square Perennial grass 2
Scirpus robustus Big bulrush Perennial grass 10
Scirpus subterminalis Water bulrush Perennial grass (rhizomatous)  
Scirpus tabernaemontani Mountain bulrush Perennial grass 4
Scrophularia californica California bee plant Perennial herb 31
Scrophularia californica ssp. californica California bee plant Perennial herb 31
Scrophularia californica ssp. floribunda Common california figwort Perennial herb 31
Scrophularia desertorum Desert figwort Perennial herb  
Scrophularia lanceolata Mountain figwort Perennial herb 1
Scutellaria antirrhinoides Snapdragon skullcap Perennial herb 2
Scutellaria galericulata Marsh skullcap Perennial herb (rhizomatous)  
Scutellaria holmgreniorum Holmgren's skullcap Perennial herb (rhizomatous)  
Scutellaria nana Little skullcap Perennial herb (rhizomatous)  
Scutellaria siphocampyloides Gray leaved skullcap Perennial herb 5
Sedum eastwoodiae Red mtn. stonecrop Perennial herb 1
Sedum lanceolatum Lance leaf stonecrop Perennial herb 4
Sedum paradisum Canyon creek stonecrop Perennial herb  
Sedum roseum ssp. integrifolium Rosy stonecrop Perennial herb  
Sedum stenopetalum Narrow leaf stonecrop Perennial herb 9
Selinocarpus nevadensis Desert wing fruit Perennial herb  
Senecio aronicoides Butterweed Perennial herb  
Senecio bernardinus San bernardino ragwort Perennial herb  
Senecio bolanderi var. bolanderi Bolander's ragwort Perennial herb  
Senecio breweri Brewer's groundsel Perennial herb  
Senecio canus Woolly ragwort Perennial herb  
Senecio clarkianus Clark's ragwort Perennial herb  
Senecio cymbalarioides Cleft leaved groundsel Perennial herb  
Senecio eurycephalus Cut leaved butterweed Perennial herb  
Senecio eurycephalus var. eurycephalus Broadhead ragwort Perennial herb  
Senecio eurycephalus var. lewisrosei Cut leaved ragwort Perennial herb  
Senecio ganderi Gander's ragwort Perennial herb  
Senecio greenei Serpentine ragwort Perennial herb  
Senecio hydrophiloides Sweet marsh ragwort Perennial herb  
Senecio hydrophilus Alkali marsh ragwort Perennial herb  
Senecio indecorus Rayless mountain butterweed Perennial herb  
Senecio integerrimus Mountain butterweed Perennial herb  
Senecio integerrimus var. exaltatus Columbia mountain butterweed Perennial herb  
Senecio integerrimus var. major Lambstongue groundsel Perennial herb  
Senecio ionophyllus Tehachapi ragwort Perennial herb  
Senecio layneae Layne's ragwort Perennial herb  
Senecio macounii Siskiyou mtns. ragwort Perennial herb  
Senecio multilobatus Basin butterweed Perennial herb  
Senecio pauciflorus Rayless alpine ragwort Perennial herb  
Senecio pseudaureus var. pseudaureus Streambank butterweed Perennial herb  
Senecio serra Tall ragwort Perennial herb  
Senecio serra var. serra Tall ragwort Perennial herb  
Senecio spartioides Broom groundsel Perennial herb  
Senecio streptanthifolius Cleft leaved groundsel Perennial herb  
Senecio triangularis Groundsel Perennial herb  
Senecio werneriifolius Alpine rock butterweed Perennial herb  
Sericocarpus oregonensis var. californicus Oregon whitetop aster Perennial herb  
Sericocarpus oregonensis var. oregonensis Oregon whitetop aster Perennial herb  
Sesuvium verrucosum Western sea purslane Perennial herb  
Setaria gracilis Perennial foxtail Perennial grass  
Sibbaldia procumbens Sibbaldia Perennial herb  
Sidalcea asprella Harsh checker mallow Perennial herb (rhizomatous)  
Sidalcea asprella ssp. nana Dwarf sierran checkerbloom Perennial herb  
Sidalcea glaucescens Glaucous checker mallow Perennial herb  
Sidalcea malviflora ssp. asprella Harsh checker mallow Perennial herb (rhizomatous)  
Sidalcea malviflora ssp. sparsifolia Few leafed checkerbloom Perennial herb (rhizomatous)  
Sidalcea multifida Cut leaf checker mallow Perennial herb  
Sidalcea oregana Oregon checker mallow Perennial herb 4
Sidalcea oregana ssp. oregana Oregon checker mallow Perennial herb  
Sidalcea oregana ssp. spicata Oregon checker mallow Perennial herb 1
Silene bernardina Palmer's campion Perennial herb  
Silene bridgesii Bridges' campion Perennial herb  
Silene douglasii Douglas' campion Perennial herb 1
Silene douglasii var. douglasii Douglas's catchfly Perennial herb  
Silene invisa Short petaled campion Perennial herb  
Silene laciniata ssp. major Indian pink Perennial herb 3
Silene lemmonii Lemmon's catchfly Perennial herb  
Silene menziesii Menzies' campion Perennial herb  
Silene nuda Naked campion Perennial herb  
Silene occidentalis Western campion Perennial herb 1
Silene occidentalis ssp. occidentalis Western campion Perennial herb 1
Silene oregana Oregon campion Perennial herb  
Silene scouleri ssp. grandis Scouler's campion Perennial herb  
Sisyrinchium bellum Blue eyed grass Perennial herb 61
Sisyrinchium douglasii var. douglasii Douglas' blue eyed grass Perennial herb 1
Sisyrinchium idahoense Idaho blue eyed grass Perennial herb 5
Sisyrinchium idahoense var. idahoense Idaho blue eyed grass Perennial herb 1
Sium suave Hemlock water parsnip Perennial herb 1
Smelowskia ovalis var. congesta Lassen peak smelowskia Perennial herb  
Smilacina racemosa Western false solomon's seal Perennial herb 18
Smilacina stellata Star flowered false solomon's seal Perennial herb 17
Solanum xanti Nightshade Perennial herb, Shrub 14
Solidago altissima var. altissima Late goldenrod Perennial herb  
Solidago californica Oreja de liebre Perennial herb 26
Solidago canadensis ssp. elongata Canada goldenrod Perennial herb 3
Solidago canadensis var. salebrosa Rough canada goldenrod Perennial herb 1
Solidago elongata West coast canada goldenrod Perennial herb 3
Solidago gigantea Smooth goldenrod Perennial herb (rhizomatous)  
Solidago sparsiflora Great basin goldenrod Perennial herb 5
Solidago spathulata ssp. spathulata Coast goldenrod Perennial herb 5
Solidago spectabilis Showy goldenrod Perennial herb 3
Solidago velutina Threenerve goldenrod Perennial herb 9
Solidago velutina ssp. californica Oreja de liebre Perennial herb 26
Solidago velutina ssp. sparsiflora Great basin goldenrod Perennial herb 2
Sparganium angustifolium Narrow leaved bur reed Perennial herb 2
Sparganium emersum Emersed bur-reed Perennial herb 2
Sparganium emersum ssp. emersum Emersed bur reed Perennial herb 2
Sparganium erectum ssp. stoloniferum Bur reed Perennial herb 2
Sparganium eurycarpum Broadfruit bur reed Perennial herb 4
Sparganium eurycarpum ssp. eurycarpum Bur reed Perennial herb 2
Sparganium eurycarpum var. greenei Bur reed Perennial herb 2
Sparganium natans Small bur reed Perennial herb (rhizomatous)  
Sphaeralcea grossulariifolia Gooseberryleaf globemallow Perennial herb, Shrub 1
Sphaeralcea grossulariifolia ssp. grossulariifolia Gooseberry leaved globemallow Perennial herb, Shrub 1
Sphaeralcea grossulariifolia var. grossulariifolia Gooseberryleaf globemallow Perennial herb, Shrub 1
Sphaeromeria cana Tansy Perennial herb  
Sphaeromeria potentilloides Cinquefoil tansy Perennial herb  
Sphaeromeria potentilloides var. potentilloides Cinquefoil tansy Perennial herb  
Sphenosciadium capitellatum Grayswamp whiteheads Perennial herb 2
Spiranthes porrifolia Western ladies tresses Perennial herb  
Spiranthes romanzoffiana Ladies' tresses Perennial herb  
Spirodela polyrhiza Giant duckmeat Perennial herb  
Spirodela polyrrhiza Giant duckmeat Perennial herb  
Sporobolus airoides Alkali sacaton Perennial grass 21
Sporobolus airoides var. wrightii Alkali sacaton Perennial grass 7
Stachys ajugoides Hedge nettle Perennial herb 6
Stachys ajugoides var. ajugoides Ajuga hedge nettle Perennial herb 6
Stachys ajugoides var. rigida Hedge nettle Perennial herb  
Stachys palustris ssp. pilosa Marsh hedge nettle Perennial herb 1
Stachys pilosa Prairie woundwort Perennial herb 1
Stachys pycnantha Short spike hedge nettle Perennial herb 2
Stachys rigida Rough hedgenettle Perennial herb 2
Stachys rigida var. rigida Rough hedgenettle Perennial herb  
Stachys stricta Sonoma hedge nettle Perennial herb  
Stanleya elata Prince's plume Perennial herb  
Stanleya pinnata Prince's plume Perennial herb, Shrub 7
Stanleya pinnata var. inyoensis Inyo prince's plume Perennial herb, Shrub 2
Stanleya pinnata var. pinnata Prince's plume Perennial herb, Shrub 2
Stanleya viridiflora Green flowered prince's plume Perennial herb  
Stellaria borealis Boreal starwort Perennial herb  
Stellaria borealis ssp. sitchana Boreal starwort Perennial herb  
Stellaria crispa Ruffled starwort Perennial herb  
Stellaria longifolia Long leaved starwort Perennial herb (rhizomatous)  
Stellaria longipes Longstalk starwort Perennial herb  
Stellaria longipes ssp. longipes Chickweed, starwort Perennial herb  
Stellaria longipes var. longipes Long stalked starwort Perennial herb  
Stellaria obtusa Obtuse starwort Perennial herb (rhizomatous)  
Stenotus acaulis Stemless mock goldenweed Perennial herb  
Stenotus lanuginosus Woolly stenotus Perennial herb  
Stenotus lanuginosus var. lanuginosus Woolly stenotus Perennial herb  
Stenotus stenophyllus Narrowleaf goldenweed Perennial herb  
Stephanomeria lactucina Large flowered stephanomeria Perennial herb  
Stephanomeria pauciflora Wire lettuce Perennial herb 1
Stephanomeria pauciflora var. parishii Parish's wire lettuce Perennial herb 1
Stephanomeria pauciflora var. pauciflora Wire lettuce Perennial herb 1
Stephanomeria spinosa Thorny skeleton plant Perennial herb  
Stephanomeria tenuifolia Narrow leaved wire lettuce Perennial herb  
Stipa cernua Nodding needle grass Perennial grass 24
Stipa comata Needle-and-thread Perennial grass 10
Stipa comata var. comata Needle & thread grass Perennial grass 1
Stipa comata var. intermedia Intermediate needle & thread grass Perennial grass  
Stipa exigua Little ricegrass Perennial grass  
Stipa hymenoides Indian rice grass Perennial grass 15
Stipa lemmonii Lemmon's needle grass Perennial grass 2
Stipa lemmonii var. lemmonii Lemmon's needle grass Perennial grass  
Stipa lettermanii Letterman's needle grass Perennial grass 1
Stipa nelsonii Mountain needle grass Perennial grass  
Stipa nelsonii var. dorei Mountain needle grass Perennial grass 4
Stipa nevadensis Nevada needle grass Perennial grass  
Stipa occidentalis Western needlegrass Perennial grass 2
Stipa occidentalis var. californica California needle grass Perennial grass  
Stipa occidentalis var. occidentalis Western needle grass Perennial grass  
Stipa occidentalis var. pubescens Common western needle grass Perennial grass  
Stipa speciosa Desert needle grass Perennial grass 8
Stipa thurberiana Thurber's needle grass Perennial grass  
Stipa webberi Webber's needle grass Perennial grass  
Streptanthus cordatus Heartleaf jewelflower Perennial herb  
Streptanthus cordatus var. cordatus Heartleaf jewelflower Perennial herb  
Streptanthus cordatus var. duranii Duran's jewelflower Perennial herb  
Streptanthus longisiliqus Long fruit jewel flower Perennial herb  
Streptopus amplexifolius Claspleaf twistedstalk Perennial herb 1
Stuckenia filiformis Fineleaf pondweed Perennial herb (rhizomatous)  
Stuckenia filiformis ssp. alpina Fineleaf pondweed Perennial herb  
Stuckenia pectinata Sago pondweed Perennial herb (aquatic)  
Stuckenia striata Broadleaf pondweed Perennial herb (aquatic)  
Suaeda moquinii Bush seepweed Perennial herb 3
Suaeda nigra Bush seepweed Perennial herb 3
Suksdorfia ranunculifolia Buttercup suksdorfia Perennial herb  
Swertia albicaulis Whitestem gentian Perennial herb  
Swertia albicaulis var. albicaulis White stem green gentian Perennial herb  
Swertia albicaulis var. modocensis Perennial herb  
Swertia albicaulis var. nitida Shining swertia Perennial herb  
Swertia albomarginata var. albomarginata Perennial herb  
Swertia albomarginata var. induta Perennial herb  
Swertia fastigiata Clustered green gentian Perennial herb  
Swertia neglecta Pine green gentian Perennial herb  
Swertia parryi Parry's green gentian Perennial herb  
Swertia puberulenta Inyo green gentian Perennial herb  
Swertia radiata Giant frasera Perennial herb  
Swertia radiata var. radiata Elkweed Perennial herb  
Swertia shastaensis Perennial herb  
Swertia tubulosa Kern green gentian Perennial herb  
Swertia umpquaensis Umpqua green gentian Perennial herb  
Symphyotrichum ascendens Western aster Perennial herb 1
Symphyotrichum bracteolatum Eaton's aster Perennial herb 2
Symphyotrichum campestre Western meadow aster Perennial herb  
Symphyotrichum campestre var. bloomeri Bloomer's aster Perennial herb  
Symphyotrichum campestre var. campestre Western meadow aster Perennial herb  
Symphyotrichum chilense Pacific aster Perennial herb 36
Symphyotrichum chilense var. chilense Pacific aster Perennial herb 13
Symphyotrichum chilense var. invenustum Pacific aster Perennial herb 11
Symphyotrichum chilense var. medium Pacific aster Perennial herb 11
Symphyotrichum eatonii Eaton's aster Perennial herb 2
Symphyotrichum foliaceum Alpine leafybract aster Perennial herb 2
Symphyotrichum foliaceum var. parryi Parry's aster Perennial herb 1
Symphyotrichum lanceolatum White panicle aster Perennial herb  
Symphyotrichum lanceolatum var. hesperium Western lance leaf aster Perennial herb  
Symphyotrichum spathulatum Western mountain aster Perennial herb 1
Symphyotrichum spathulatum var. spathulatum Western mountain aster Perennial herb  
Symphyotrichum spathulatum var. yosemitanum Western bog aster Perennial herb  
Synthyris missurica Kittentails Perennial herb  
Synthyris reniformis var. cordata Snow queen Perennial herb  
Tanacetum camphoratum Dune tansy Perennial herb 10
Taraxia subacaulis Long leaved suncup Perennial herb  
Taraxia tanacetifolia Tansy leaf evening primrose Perennial herb  
Thalictrum fendleri Fendler's meadow rue Perennial herb 11
Thalictrum fendleri var. fendleri Fendler's meadow rue Perennial herb  
Thalictrum polycarpum Fendler's meadow-rue Perennial herb 12
Thalictrum sparsiflorum Few flowered meadow rue Perennial herb  
Thelypodium flexuosum Nodding thelypodium Perennial herb  
Thelypodium howellii Howell's thelypody Perennial herb  
Thelypodium howellii ssp. howellii Howell's thelypodium Perennial herb  
Thelypodium integrifolium Entire leaved thelypodium Perennial herb  
Thelypodium integrifolium ssp. complanatum Lavender entire leaved thelypodium Perennial herb  
Thelypodium laciniatum Feathery thelypodium Perennial herb 1
Thelypodium milleflorum Yarrow leaf thelypodium Perennial herb  
Thermopsis californica California goldenbanner Perennial herb 1
Thermopsis californica var. argentata Silvery false lupine Perennial herb (rhizomatous)  
Thermopsis gracilis var. gracilis Slender false lupine Perennial herb (rhizomatous) 1
Thermopsis macrophylla var. agnina Santa ynes false lupine Perennial herb (rhizomatous) 2
Thermopsis macrophylla var. argentata Silvery false lupine Perennial herb (rhizomatous)  
Thermopsis macrophylla var. macrophylla Common false lupine Perennial herb (rhizomatous) 2
Thermopsis macrophylla var. semota Velvety false lupine Perennial herb (rhizomatous)  
Thermopsis macrophylla var. venosa Klamath false lupine Perennial herb (rhizomatous) 1
Thlaspi californicum Kneeland prairie pennycress Perennial herb  
Thlaspi montanum ssp. montanum Perennial herb  
Tidestromia oblongifolia Honey sweet Perennial herb  
Tofieldia occidentalis ssp. occidentalis Western tofieldia Perennial herb  
Torreyochloa pallida Pale false mannagrass Perennial grass (rhizomatous)  
Torreyochloa pallida var. pauciflora Mannagrass Perennial grass (rhizomatous)  
Townsendia scapigera Tufted townsendia Perennial herb  
Toxicoscordion micranthum Small flowered star lily Perennial herb  
Toxicoscordion paniculatum Foothill deathcamas Perennial herb 2
Toxicoscordion venenosum Meadow deathcamas Perennial herb 2
Toxicoscordion venenosum var. venenosum Meadow deathcamas Perennial herb  
Trautvetteria caroliniensis var. occidentalis Western trautvetteria Perennial herb 1
Triantha occidentalis Western false asphodel Perennial herb  
Triantha occidentalis ssp. occidentalis Western false asphodel Perennial herb  
Trientalis arctica Arctic starflower Perennial herb 1
Trientalis europaea Arctic starflower Perennial herb  
Trientalis europaea ssp. arctica Arctic starflower Perennial herb  
Trientalis latifolia Western star flower Perennial herb 2
Trifolium andersonii Anderson's clover Perennial herb  
Trifolium andersonii ssp. andersonii Anderson's clover Perennial herb  
Trifolium andersonii var. andersonii Anderson's clover Perennial herb  
Trifolium andersonii var. beatleyae Beatley's five leaved clover Perennial herb  
Trifolium beckwithii Beckwith's clover Perennial herb  
Trifolium breweri Brewer's clover Perennial herb  
Trifolium eriocephalum Woollyhead clover Perennial herb  
Trifolium eriocephalum ssp. cusickii Cusick's clover Perennial herb  
Trifolium eriocephalum var. eriocephalum Hairy head clover Perennial herb  
Trifolium eriocephalum var. harneyense Cusick's clover Perennial herb  
Trifolium gymnocarpon Hollyleaf clover Perennial herb  
Trifolium gymnocarpon ssp. plummerae Plummer's clover Perennial herb  
Trifolium gymnocarpon var. plummerae Plummer's clover Perennial herb  
Trifolium kingii King's clover Perennial herb  
Trifolium kingii var. productum King's clover Perennial herb  
Trifolium lemmonii Lemmon's clover Perennial herb  
Trifolium longipes Long stalked clover Perennial herb  
Trifolium longipes ssp. hansenii Hansen's clover Perennial herb  
Trifolium longipes ssp. shastense Longstalk clover Perennial herb  
Trifolium longipes var. elmeri Elmer's clover Perennial herb  
Trifolium longipes var. longipes Long stalked clover Perennial herb  
Trifolium longipes var. nevadense Mountain clover Perennial herb  
Trifolium longipes var. oreganum Oregon clover Perennial herb  
Trifolium longipes var. shastense Shasta clover Perennial herb  
Trifolium macilentum var. dedeckerae Dedecker's clover Perennial herb  
Trifolium macrocephalum Big headed clover Perennial herb  
Trifolium monanthum Carpet clover Perennial herb  
Trifolium monanthum ssp. monanthum Carpet clover Perennial herb  
Trifolium monanthum var. grantianum Grant's carpet clover Perennial herb  
Trifolium monanthum var. monanthum Mountain carpet clover Perennial herb  
Trifolium productum Productive clover Perennial herb  
Trifolium wormskioldii Cow clover Perennial herb 6
Trifolium wormskioldii var. arizonicum Spinytooth clover Perennial herb  
Trifolium wormskioldii var. siskiyouense Siskiyou clover Perennial herb  
Triglochin concinna Arrow grass Perennial herb (aquatic)  
Triglochin concinna var. debilis Slender arrow grass Perennial herb (aquatic)  
Triglochin maritima Seaside arrow grass Perennial herb (aquatic) 7
Trillium albidum Giant white wakerobin Perennial herb 3
Trillium rivale Siskiyou wakerobin Perennial herb 1
Trimorpha acris var. debilis Northern daisy Perennial herb  
Trimorpha lonchophylla Spearleaved northern daisy Perennial herb  
Trisetum canescens Nodding trisetum Perennial grass  
Trisetum cernuum var. projectum Nodding oatgrass Perennial grass  
Trisetum spicatum Narrow oatgrass Perennial grass  
Triteleia crocea Yellow brodiaea Perennial herb  
Triteleia grandiflora var. howellii Howell's triteleia Perennial herb  
Triteleia hendersonii var. hendersonii Henderson's triteleia Perennial herb (bulb)  
Triteleia hyacinthina Wild hyacinth Perennial herb 9
Triteleia ixioides Pretty face Perennial herb 6
Triteleia ixioides ssp. anilina Mountain pretty face Perennial herb 1
Triteleia montana Slender triplet lily Perennial herb  
Turricula parryi Poodle dog bush Perennial herb 1
Turritis glabra Tower rockcress Perennial herb  
Typha domingensis Cattail Perennial herb 5
Typha latifolia Broadleaf cattail Perennial herb (aquatic) 22
Urtica dioica Stinging nettle Perennial herb 10
Urtica dioica ssp. holosericea Stinging nettle Perennial herb 5
Utricularia macrorhiza Common bladderwort Perennial herb  
Valeriana californica California valerian Perennial herb  
Valeriana hookeri Scouler's valerian Perennial herb  
Valeriana occidentalis Western valerian Perennial herb  
Veratrum californicum California false hellebore Perennial herb 3
Veratrum californicum var. californicum California corn lily Perennial herb  
Veratrum viride var. eschscholzianum Green false hellebore Perennial herb 4
Verbena officinalis var. officinalis Herb of the cross Perennial herb  
Veronica americana American brooklime Perennial herb 6
Veronica cusickii Cusick's speedwell Perennial herb  
Veronica scutellata Marsh speedwell Perennial herb  
Veronica serpyllifolia Thymeleaf speedwell Perennial herb  
Veronica serpyllifolia ssp. humifusa Sprawling speedwell Perennial herb  
Veronica wormskjoldii American alpine speedwell Perennial herb  
Vicia americana American vetch Perennial herb, Vine 4
Vicia americana ssp. americana American vetch Perennial herb, Vine  
Vicia americana var. americana Vetch Perennial herb, Vine  
Viola adunca Western dog violet Perennial herb 18
Viola adunca ssp. adunca Western dog violet Perennial herb 1
Viola adunca var. adunca Western bog violet Perennial herb 1
Viola adunca var. kirkii Yosemite dog violet Perennial herb 1
Viola aurea Golden violet Perennial herb  
Viola bakeri Baker's violet Perennial herb 1
Viola beckwithii Great basin violet Perennial herb 1
Viola glabella Stream violet Perennial herb 10
Viola hallii Hall's violet Perennial herb  
Viola langsdorfii Langsdorf's violet Perennial herb  
Viola lobata Moose horn violet Perennial herb  
Viola lobata ssp. integrifolia Delta leafed forest violet Perennial herb  
Viola macloskeyi Macloskey's violet Perennial herb 1
Viola macloskeyi ssp. pallens Small white violet Perennial herb 1
Viola nephrophylla Leconte violet Perennial herb  
Viola pedunculata ssp. pedunculata Johnny jump up Perennial herb  
Viola pedunculata ssp. tenuifolia Johnny jump up Perennial herb  
Viola pinetorum Pine violet Perennial herb 2
Viola pinetorum ssp. pinetorum Pine violet Perennial herb  
Viola praemorsa Astoria violet Perennial herb 1
Viola praemorsa ssp. linguifolia Astoria violet Perennial herb  
Viola purpurea Goosefoot violet Perennial herb  
Viola purpurea ssp. dimorpha Goosefoot violet Perennial herb  
Viola purpurea ssp. integrifolia Smooth leaved violet Perennial herb  
Viola purpurea ssp. purpurea Goosefoot violet Perennial herb  
Viola purpurea ssp. venosa Desert violet Perennial herb  
Viola sororia ssp. affinis Northern bog violet Perennial herb  
Whitneya dealbata Whitneya Perennial herb  
Wyethia angustifolia Narrow leaved mule ears Perennial herb 9
Wyethia mollis Woolly mule's ears Perennial herb 7
Zannichellia palustris Horned pondweed Perennial herb  
Zigadenus brevibracteatus Desert death camas Perennial herb  
Zigadenus exaltatus Giant death camas Perennial herb  
Zigadenus fremontii Fremont's death camas Perennial herb 5
Zigadenus micranthus Small flowered death camas Perennial herb  
Zigadenus micranthus var. fontanus Fountain death camas Perennial herb  
Zigadenus micranthus var. micranthus Little flowered death camas Perennial herb  
Zigadenus paniculatus Sand corn Perennial herb 2
Zigadenus venenosus Meadow deathcamas Perennial herb 2
Zigadenus venenosus var. venenosus Death camas Perennial herb  
  Lifeform: Fern54 plants
Asplenium trichomanes-ramosum Green spleenwort Fern (rhizomatous)  
Athyrium filix-femina Common ladyfern Fern 19
Athyrium filix-femina ssp. cyclosorum Subarctic ladyfern Fern 1
Athyrium filix-femina var. cyclosorum Western lady fern Fern 1
Azolla filiculoides Mosquito fern Fern  
Azolla mexicana Mexican mosquito fern Fern  
Botrychium ascendens Upswept moonwort Fern (rhizomatous)  
Botrychium crenulatum Scalloped moonwort Fern (rhizomatous)  
Botrychium minganense Mingan moonwort Fern (rhizomatous)  
Botrychium montanum Western goblin Fern (rhizomatous)  
Botrychium multifidum Common grapefern Fern  
Botrychium virginianum Rattlesnake fern Fern  
Cheilanthes clevelandii Cleveland's lipfern Fern  
Cheilanthes cooperae Mrs. cooper's lipfern Fern  
Cheilanthes covillei Coville's lip fern Fern 4
Cheilanthes feei Slender lipfern Fern  
Cheilanthes gracillima Lace lip fern Fern 1
Cheilanthes intertexta Coastal lipfern Fern  
Cheilanthes newberryi Newberry's lipfern Fern  
Cheilanthes parryi Parry cloak fern Fern  
Cheilanthes viscida Viscid lip fern Fern  
Cheilanthes wootonii Wooton's lace fern Fern (rhizomatous)  
Cryptogramma acrostichoides American parsley fern Fern  
Cystopteris fragilis Brittle fern Fern 1
Dryopteris arguta Wood fern Fern 7
Equisetum arvense Common horsetail Fern 7
Equisetum hyemale Scouringrush horsetail Fern 31
Equisetum hyemale ssp. affine Giant scouring rush Fern 7
Equisetum hyemale var. affine Scouringrush horsetail Fern 4
Equisetum laevigatum Smooth scouring rush Fern 3
Equisetum telmateia var. braunii Giant horsetail Fern 1
Isoetes bolanderi Bolander's quillwort Fern  
Isoetes bolanderi var. pygmaea Bolander's quillwort Fern  
Isoetes howellii Quillwort Fern  
Isoetes howellii var. minima Howell's quillwort Fern  
Isoetes nuttallii Nuttall's quillwort Fern  
Isoetes orcuttii Orcutt's quillwort Fern (aquatic)  
Marsilea oligospora Nelson's pepperwort Fern  
Marsilea vestita Hairy waterclover Fern 6
Marsilea vestita ssp. vestita Hairy pepperwort Fern 5
Myriopteris gracillima Lace lip fern Fern 1
Myriopteris intertexta Coastal lip fern Fern  
Pellaea andromedifolia var. pubescens Coffee fern Fern 3
Pellaea brachyptera Sierra cliff brake Fern  
Pentagramma triangularis Gold back fern Fern 3
Pentagramma triangularis ssp. semipallida Pale gold back fern Fern 3
Pentagramma triangularis ssp. triangularis Gold back fern Fern  
Pilularia americana Pillwort Fern  
Polystichum lonchitis Holly fern Fern (rhizomatous)  
Pteridium aquilinum Western brackenfern Fern 6
Pteridium aquilinum var. pubescens Western bracken fern Fern  
Selaginella arizonica Arizona spikemoss Fern (rhizomatous)  
Selaginella densa var. scopulorum Rocky mountain spike moss Fern (mosslike)  
Woodsia oregana Cliff fern Fern  
  Lifeform: Shrub444 plants
Acacia greggii Cats claw acacia Shrub 7
Acer glabrum Mountain maple Tree, Shrub 11
Acer glabrum var. glabrum Rocky mountain maple Tree, Shrub  
Acer glabrum var. greenei Greene's mountain maple Tree, Shrub  
Acer glabrum var. torreyi Torrey's mountain maple Tree, Shrub  
Alnus incana Gray alder Tree, Shrub 6
Alnus incana ssp. tenuifolia Creek alder Tree, Shrub 9
Amelanchier alnifolia Service berry Shrub 31
Amelanchier alnifolia var. pumila Dwarf service berry Shrub  
Amelanchier alnifolia var. semiintegrifolia Service berry Shrub  
Amelanchier pallida Pallid service berry Shrub 3
Amelanchier utahensis Pale leaved serviceberry Shrub 10
Amelanchier utahensis ssp. covillei Coville's service berry Shrub  
Amelanchier utahensis ssp. utahensis Utah service berry Shrub  
Amelanchier utahensis var. covillei Coville's serviceberry Shrub  
Amelanchier utahensis var. utahensis Utah serviceberry Shrub  
Arctostaphylos Xjepsonii Hybrid manzanita Tree, Shrub  
Arctostaphylos Xknightii Hybrid manzanita Shrub  
Arctostaphylos Xoblongifolia Hybrid manzanita Shrub  
Arctostaphylos Xpacifica Hybrid manzanita Shrub 1
Arctostaphylos Xparvifolia Hybrid manzanita Shrub  
Arctostaphylos columbiana f. tracyi Tracy's redwood manzanita Tree, Shrub 5
Arctostaphylos gabrielensis San gabriel manzanita Shrub 1
Arctostaphylos glandulosa f. cushingiana Cushing's manzanita Shrub  
Arctostaphylos glandulosa ssp. glaucomollis San gabriel mts. manzanita Shrub 1
Arctostaphylos glandulosa ssp. zacaensis Zaca lake manzanita Shrub 2
Arctostaphylos hookeri ssp. franciscana San francisco manzanita Shrub 9
Arctostaphylos hookeri ssp. montana Mt. tamalpais manzanita Shrub  
Arctostaphylos hookeri ssp. ravenii Raven's manzanita Shrub  
Arctostaphylos manzanita Common manzanita Shrub 25
Arctostaphylos manzanita ssp. manzanita Common manzanita Shrub  
Arctostaphylos mendocinoensis Pygmy manzanita Shrub  
Arctostaphylos mewukka Indian manzanita Shrub  
Arctostaphylos mewukka ssp. mewukka Indian manzanita Shrub  
Arctostaphylos nevadensis Pine mat manzanita Shrub 6
Arctostaphylos patula Green leaf manzanita Shrub 15
Arctostaphylos peninsularis ssp. peninsularis Peninsular manzanita Shrub  
Arctostaphylos tomentosa f. hebeclada Woolly twig manzanita Shrub  
Arctostaphylos tomentosa ssp. crinita Santa cruz mtns. manzanita Shrub  
Arctostaphylos tomentosa ssp. crustacea Brittle leaf manzanita Shrub 4
Arctostaphylos tomentosa ssp. eastwoodiana Eastwood's manzanita Shrub  
Arctostaphylos tomentosa ssp. insulicola Island manzanita Shrub  
Arctostaphylos tomentosa ssp. rosei Rose's manzanita Shrub 1
Arctostaphylos tomentosa ssp. subcordata Heart leaved manzanita Shrub 2
Arctostaphylos uva-ursi f. adenotricha Glandular kinnikinnick Shrub  
Arctostaphylos uva-ursi f. coactilis Southern kinnikinnick Shrub 31
Arctostaphylos wellsii Wells's manzanita Shrub 1
Arida carnosa Shrubby alkali aster Shrub  
Artemisia arbuscula Black sagebrush Shrub 6
Artemisia arbuscula ssp. arbuscula Low sagebrush Shrub 1
Artemisia arbuscula ssp. thermopola Warm springs low sagebrush Shrub  
Artemisia cana Silver sagebrush Shrub 5
Artemisia cana ssp. bolanderi Bolander's silver sagebrush Shrub  
Artemisia nova Black sagebrush Shrub 4
Artemisia rothrockii Rothrock sagebrush Shrub  
Artemisia spinescens Budsage Shrub  
Artemisia tridentata Common sagebrush Shrub 27
Artemisia tridentata ssp. tridentata Big sagebrush Shrub 3
Artemisia tridentata ssp. vaseyana Mountain sagebrush Shrub 8
Artemisia tridentata ssp. wyomingensis Wyoming sagebrush Shrub 4
Artemisia tripartita Threetip sagebrush Shrub  
Artemisia tripartita ssp. tripartita Threetip sagebrush Shrub  
Atriplex canescens Hoary saltbush Shrub 22
Atriplex canescens ssp. canescens Shadscale Shrub 1
Atriplex canescens ssp. linearis Narrow leaved wingscale Shrub  
Atriplex canescens var. canescens Fourwing saltbush Shrub 1
Atriplex confertifolia Spiny saltbush Shrub 8
Atriplex lentiformis ssp. torreyi Torrey's saltbush Shrub  
Baccharis emoryi Emory's baccharis Shrub 7
Berberis aquifolium Mountain grape Shrub 47
Berberis aquifolium var. aquifolium Oregon grape Shrub 37
Berberis aquifolium var. repens Creeping oregon grape Shrub 30
Bernardia myricifolia Western bernardia Shrub  
Betula glandulosa Resin birch Shrub 6
Betula occidentalis Water birch Tree, Shrub 23
Brickellia arguta California spear leaved brickellia Shrub 1
Brickellia arguta var. arguta California spear leaved brickellia Shrub 1
Brickellia arguta var. odontolepis California spear leaved brickellia Shrub  
Brickellia microphylla Little leaved brickellia Shrub  
Brickellia microphylla var. microphylla Littleleaf brickellbush Shrub  
Brickellia multiflora Gum leaved brickellia Shrub  
Caesalpinia virgata Narrow hoffmannseggia Shrub  
Cassiope mertensiana ssp. californica California moss heather Shrub  
Ceanothus Xflexilis Flexible ceanothus Shrub  
Ceanothus Xotayensis Shrub  
Ceanothus Xregius Blueblossom x wartleaf ceanothus Shrub  
Ceanothus cordulatus Snow bush Shrub 7
Ceanothus cuneatus Buck brush Shrub 24
Ceanothus cuneatus var. rigidus Monterey ceanothus Shrub 6
Ceanothus greggii var. perplexans Cupped leaf ceanothus Shrub  
Ceanothus greggii var. vestitus California lilac Shrub  
Ceanothus griseus Carmel ceanothus Shrub 36
Ceanothus griseus var. horizontalis Yankee point ceanothus Shrub 24
Ceanothus integerrimus Deer brush Shrub 15
Ceanothus jepsonii var. albiflorus White flowered musk brush Shrub  
Ceanothus jepsonii var. jepsonii Musk brush Shrub  
Ceanothus megacarpus var. pendulus Drooping big pod ceanothus Shrub 1
Ceanothus papillosus var. papillosus Wartleaf ceanothus Shrub  
Ceanothus papillosus var. roweanus Mt. tranquillon ceanothus Shrub 20
Ceanothus prostratus Mahala mats Shrub 10
Ceanothus prostratus var. laxus Large leaved carpet Shrub 10
Ceanothus prostratus var. prostratus Mahala mat Shrub  
Ceanothus thyrsiflorus var. repens Creeping blueblossom Tree, Shrub 31
Ceanothus tomentosus var. olivaceus Southern woolly leaf ceanothus Shrub 7
Ceanothus tomentosus var. tomentosus Woolly leaf ceanothus Shrub 6
Ceanothus velutinus Tobacco brush, snowbrush Tree, Shrub 11
Ceanothus velutinus var. hookeri Hooker's tobacco brush Tree, Shrub 10
Ceanothus velutinus var. laevigatus Hooker's ceanothus Tree, Shrub 10
Ceanothus velutinus var. velutinus Tobacco brush Tree, Shrub 11
Cephalanthus occidentalis var. californicus California buttonbush Shrub 15
Cercidium microphyllum Yellow palo verde Tree, Shrub 10
Cercis occidentalis Western redbud Tree, Shrub 65
Cercocarpus betuloides Birch leaf mountain mahogany Tree, Shrub 45
Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany Tree, Shrub 2
Cercocarpus intricatus Little leaved mountain mahogany Shrub  
Cercocarpus ledifolius Desert mountainmahogany Tree, Shrub 18
Cercocarpus ledifolius var. intercedens Curl leaf mountain mahogany Tree, Shrub  
Cercocarpus ledifolius var. intermontanus Curl leaved mountain mahogany Tree, Shrub  
Cercocarpus ledifolius var. ledifolius Curl leaf mountain mahogany Tree, Shrub  
Chamaebatia foliolosa Sierran mountain misery Shrub  
Chamaebatiaria millefolium Fern bush Shrub 6
Chrysolepis sempervirens Sierra chinquapin Shrub 2
Chrysothamnus humilis Truckee rabbitbrush Shrub  
Chrysothamnus nauseosus Common rabbitbrush Shrub 25
Chrysothamnus nauseosus ssp. albicaulis Rubber rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. bernardinus San bernardino rubber rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. ceruminosus Sharp bracted rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. consimilis Gray rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. hololeucus Common rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. leiospermus Common rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. mohavensis Mohave common rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. viridulus Rubber rabbitbrush Shrub  
Chrysothamnus nauseosus ssp. washoensis Washoe common rabbitbrush Shrub  
Chrysothamnus parryi Parry's rabbit brush Shrub  
Chrysothamnus parryi ssp. asper Rough parry's rabbitbrush Shrub  
Chrysothamnus parryi ssp. bolanderi Bolander's rabbitbrush Shrub  
Chrysothamnus parryi ssp. imulus Parry's rabbitbrush Shrub  
Chrysothamnus parryi ssp. latior Parry's rabbitbrush Shrub  
Chrysothamnus parryi ssp. monocephalus Single headed parry's rabbitbrush Shrub  
Chrysothamnus parryi ssp. nevadensis Nevada parry's rabbitbrush Shrub  
Chrysothamnus parryi ssp. vulcanicus Parry's rabbitbrush Shrub  
Chrysothamnus teretifolius Terete leaved rubberbrush Shrub  
Chrysothamnus viscidiflorus Green rabbitbrush Shrub 5
Chrysothamnus viscidiflorus ssp. lanceolatus Sticky leaved rabbitbrush Shrub  
Chrysothamnus viscidiflorus ssp. latifolius Sticky leaved rabbitbrush Shrub  
Chrysothamnus viscidiflorus ssp. puberulus Sticky leaved rabbitbrush Shrub  
Chrysothamnus viscidiflorus ssp. viscidiflorus Sticky leaved rabbitbrush Shrub  
Coreopsis gigantea Giant coreopsis Shrub 23
Cornus sericea American dogwood Shrub 42
Cornus sericea ssp. occidentalis Western dogwood Shrub 8
Cornus sericea ssp. sericea Red osier dogwood Shrub 34
Corylus cornuta var. californica California hazelnut Shrub 9
Crataegus columbiana Columbia hawthorn Tree, Shrub 11
Crataegus suksdorfii Klamath hawthorn Tree, Shrub 3
Cupressus macnabiana Macnab's cypress Tree, Shrub 7
Cupressus sargentii Sargent cypress Tree, Shrub 3
Cylindropuntia Xfosbergii Hoffmann's teddybear cholla Shrub (stem succulent) 1
Cylindropuntia acanthocarpa var. coloradensis Colorado buckhorn cholla Shrub (stem succulent) 1
Cylindropuntia bigelovii var. bigelovii Teddybear cholla Shrub (stem succulent) 1
Dasiphora fruticosa Shrubby cinquefoil Shrub 13
Diplacus linearis Chaparral bush monkeyflower Shrub 1
Echinocereus coccineus var. coccineus Scarlet hedgehog cactus Shrub (stem succulent)  
Echinocereus triglochidiatus Mohave mound cactus Shrub (stem succulent) 3
Echinomastus johnsonii Johnson's fishhook cactus Shrub (stem succulent)  
Empetrum nigrum ssp. hermaphroditum Black crowberry Shrub 1
Empetrum nigrum ssp. nigrum Black crowberry Shrub  
Encelia farinosa X Encelia frutescens Shrub  
Encelia farinosa X frutescens Hybrid encelia Shrub  
Ephedra californica Desert tea Shrub 2
Ephedra fasciculata var. clokeyi Clokey's ephedra Shrub  
Ephedra fasciculata var. fasciculata Arizona ephedra Shrub  
Ephedra viridis Green ephedra Shrub 12
Ericameria albida White flowered rabbitbrush Shrub  
Ericameria bloomeri Bloomer's goldenbrush Shrub  
Ericameria discoidea var. discoidea Whitestem goldenbush Shrub  
Ericameria greenei Greene's goldenbush Shrub 1
Ericameria nauseosa Rubber rabbitbrush Shrub 25
Ericameria nauseosa ssp. consimilis Rubber rabbitbrush Shrub  
Ericameria nauseosa var. hololeuca Common rabbitbrush Shrub  
Ericameria nauseosa var. leiosperma Common rabbitbrush Shrub  
Ericameria nauseosa var. oreophila Rubber rabbitbrush Shrub  
Ericameria nauseosa var. speciosa Rubber rabbitbrush Shrub  
Ericameria nauseosa var. washoensis Rubber rabbitbrush Shrub  
Ericameria palmeri ssp. palmeri Palmer's goldenbush Shrub  
Ericameria parryi Parry's rabbitbrush Shrub  
Ericameria parryi var. nevadensis Parry's rabbitbrush Shrub  
Ericameria suffruticosa Heath goldenrod Shrub  
Eriogonum marifolium Marum leaved buckwheat Shrub  
Eriogonum marifolium var. marifolium Marum leaved buckwheat Shrub  
Eriogonum microthecum Slender buckwheat Shrub  
Eriogonum microthecum var. ambiguum Obscure buckwheat Shrub  
Eriogonum microthecum var. laxiflorum Bush eriogonum Shrub  
Eriogonum microthecum var. schoolcraftii Schoolcraft's wild buckwheat Shrub  
Eriogonum nudum Naked buckwheat Shrub 16
Eriogonum nudum var. deductum Naked buckwheat Shrub  
Eriogonum nudum var. nudum Nude buckwheat Shrub  
Eriogonum nudum var. scapigerum Naked buckwheat Shrub  
Eriogonum nummulare Round leaf buckwheat Shrub  
Eriogonum spectabile Barron's buckwheat Shrub  
Eriophyllum nevinii Silverlace Shrub 8
Escobaria vivipara Viviparous foxtail cactus Shrub (stem succulent) 1
Escobaria vivipara var. alversonii Foxtail cactus Shrub (stem succulent)  
Escobaria vivipara var. deserti Desert beehive cactus Shrub (stem succulent)  
Escobaria vivipara var. rosea Viviparous foxtail cactus Shrub (stem succulent)  
Ferocactus cylindraceus var. cylindraceus California barrel cactus Shrub (stem succulent) 2
Ferocactus cylindraceus var. lecontei Barrel cactus Shrub (stem succulent) 2
Ferocactus viridescens var. viridescens Shrub (stem succulent) 5
Frangula rubra Red buckthorn Shrub 3
Frangula rubra ssp. rubra Red buckthorn Shrub 3
Fraxinus dipetala Two petaled ash Tree, Shrub 7
Fraxinus jonesii California ash Tree, Shrub 7
Fremontodendron californicum ssp. californicum California fremontia Shrub 27
Fremontodendron californicum ssp. decumbens Pine hill fremontia Shrub 4
Galium stellatum var. eremicum Star flowered bedstraw Shrub  
Garrya fremontii Fremont's silk tassel Shrub 5
Glossopetalon spinescens Nevada greasewood Shrub  
Grayia spinosa Hop sage Shrub 7
Helianthemum greenei Island rush rose Shrub  
Hemizonia clementina Island tarplant Shrub  
Hemizonia minthornii Santa susana tarplant Shrub 2
Holodiscus discolor Oceanspray Shrub 40
Holodiscus discolor var. glabrescens Rock spiraea Shrub 38
Holodiscus discolor var. microphyllus Small-leaf creambush Shrub 1
Holodiscus microphyllus Oceanspray Shrub 38
Holodiscus microphyllus var. glabrescens Rock spiraea Shrub 38
Holodiscus microphyllus var. microphyllus Little leaf creambush Shrub 38
Hymenoclea monogyra Leafy burrobrush Shrub  
Hymenoclea salsola Burrobrush Shrub 6
Hymenoclea salsola var. pentalepis Five scaled burrobrush Shrub  
Hymenoclea salsola var. salsola Burrobrush Shrub  
Hyptis emoryi Desert lavender Shrub 11
Ipomopsis tenuituba Narrow tube ipomopsis Shrub (stem succulent)  
Isomeris arborea Bladderpod Shrub 33
Juniperus californica California juniper Shrub 4
Juniperus osteosperma Utah juniper Tree, Shrub 2
Kalmia polifolia ssp. microphylla Bog laurel Shrub 2
Kalmia polifolia ssp. polifolia Mountain laurel Shrub 1
Krameria grayi White rhatany Shrub  
Krascheninnikovia lanata Winter fat Shrub 11
Ledum glandulosum Western labrador tea Shrub 1
Leptodactylon californicum ssp. californicum California prickly phlox Shrub 1
Leptodactylon californicum ssp. leptotrichomum California prickly phlox Shrub 1
Leptodactylon pungens Prickly phlox Shrub  
Linanthus pungens Granite prickly phlox Shrub  
Lithocarpus densiflorus Tanbark oak Tree, Shrub 13
Lithocarpus densiflorus var. densiflorus Tanoak Tree, Shrub 3
Lithocarpus densiflorus var. echinoides Tanoak shrub Tree, Shrub 4
Lonicera cauriana Sweet berry honeysuckle Shrub  
Lonicera conjugialis Purpleflower honeysuckle Shrub 2
Lonicera hispidula var. hispidula Pink honeysuckle Vine, Shrub 32
Lonicera hispidula var. vacillans Hairy honeysuckle Vine, Shrub 34
Lonicera involucrata Coast twinberry Shrub 41
Lotus dendroideus Island broom Shrub  
Lotus dendroideus var. dendroideus Island deerweed Shrub  
Lotus dendroideus var. traskiae San clemente island lotus Shrub  
Lotus dendroideus var. veatchii San miguel island deerweed Shrub  
Lupinus albifrons Silver bush lupine Shrub 34
Lupinus albifrons var. albifrons Silver bush lupine Shrub 6
Lupinus eximius San mateo tree lupine Shrub  
Lupinus propinquus Coastal bush lupine Shrub 28
Machaeranthera carnosa Shrubby alkali aster Shrub  
Malacothamnus densiflorus var. densiflorus Yellow stem bush mallow Shrub 3
Malacothamnus densiflorus var. viscidus Yellow stem bush mallow Shrub 3
Mammillaria milleri Miller's fish hook cactus Shrub (stem succulent)  
Mimulus aridus Low bush monkeyflower Shrub  
Mimulus aurantiacus var. parviflorus Island bush monkeyflower Shrub  
Mimulus bifidus Sticky monkeyflower Shrub 10
Mimulus longiflorus Sticky monkeyflower Shrub 12
Mimulus puniceus Red bush monkeyflower Shrub 51
Myrica californica Wax myrtle Shrub 54
Opuntia Xfosbergii Pink teddy bear cholla Shrub (stem succulent) 1
Opuntia Xmunzii Munz's cholla Shrub (stem succulent) 2
Opuntia acanthocarpa var. coloradensis Buckhorn cholla Shrub (stem succulent) 1
Opuntia bigelovii Teddy bear cholla Shrub (stem succulent) 2
Opuntia curvospina Curved spine beavertail Shrub (stem succulent)  
Opuntia echinocarpa Staghorn cholla Shrub (stem succulent) 2
Opuntia erinacea Old man cactus Shrub (stem succulent) 2
Opuntia erinacea var. erinacea Grizzly pear Shrub (stem succulent) 2
Opuntia erinacea var. utahensis Utah prickly pear Shrub (stem succulent) 2
Opuntia kunzei Devil's cholla Shrub  
Opuntia littoralis var. vaseyi Vasey's coastal pricklypear Shrub (stem succulent) 1
Opuntia parishii Dead cactus Shrub (stem succulent)  
Opuntia parryi Cane cholla Shrub (stem succulent) 1
Opuntia parryi var. serpentina Snake cholla Shrub (stem succulent) 1
Opuntia polyacantha Plains pricklypear Shrub (stem succulent) 3
Opuntia polyacantha var. erinacea Grizzlybear pricklypear Shrub (stem succulent) 2
Opuntia prolifera Cholla Shrub (stem succulent) 7
Opuntia pulchella Beautiful cholla Shrub (stem succulent)  
Opuntia ramosissima Pencil cactus Shrub (stem succulent)  
Opuntia wolfii Wolf's cholla Shrub (stem succulent)  
Parthenocissus vitacea Virginia creeper Vine, Shrub 3
Penstemon sudans Volcanic beardtongue Shrub (stem succulent)  
Peraphyllum ramosissimum Wild crab apple Shrub 2
Petrophyton caespitosum Rock spiraea Shrub 2
Petrophyton caespitosum ssp. acuminatum Rock spiraea Shrub  
Petrophyton caespitosum ssp. caespitosum Rock spiraea Shrub  
Philadelphus lewisii ssp. gordonianus Gordon's wild mock orange Shrub 47
Philadelphus microphyllus ssp. pumilus Little leaf mock orange Shrub 7
Phoradendron bolleanum Bollean mistletoe Shrub (parasitic)  
Phoradendron juniperinum Mistletoe Shrub (parasitic)  
Phoradendron libocedri Incense cedar mistletoe Shrub (parasitic)  
Phoradendron macrophyllum Big leaf mistletoe Shrub (parasitic)  
Phoradendron serotinum Mistletoe Shrub (parasitic)  
Phoradendron serotinum ssp. macrophyllum Big leaf mistletoe Shrub (parasitic)  
Phoradendron serotinum ssp. tomentosum Pacific mistletoe Shrub (parasitic)  
Phoradendron villosum Hairy mistletoe Shrub (parasitic)  
Phyllodoce breweri Brewer's mountain heather Shrub  
Potentilla fruticosa Shrubby cinquefoil Shrub 13
Prunus andersonii Desert peach Tree, Shrub 7
Prunus emarginata Bitter cherry Tree, Shrub 15
Prunus fasciculata Desert almond Shrub 5
Prunus subcordata Sierra plum Tree, Shrub 4
Prunus subcordata var. kelloggii Kellogg's klamath plum Tree, Shrub 4
Prunus subcordata var. oregana Oregon klamath plum Tree, Shrub  
Prunus subcordata var. rubicunda Klamath plum Tree, Shrub 4
Prunus virginiana Chokecherry Tree, Shrub 29
Prunus virginiana var. demissa Western choke cherry Tree, Shrub 10
Prunus virginiana var. melanocarpa Black chokecherry Tree, Shrub 8
Purshia mexicana var. stansburyana Stansbury's antelope brush Shrub  
Purshia tridentata Antelope bush Shrub 18
Purshia tridentata var. tridentata Antelope bitterbrush Shrub 18
Quercus Xchasei Shrub, Tree  
Quercus vacciniifolia Huckleberry oak Shrub 5
Rhamnus alnifolia Alder leaved coffeeberry Shrub 1
Rhamnus californica Coffee berry Shrub 60
Rhamnus californica ssp. californica California coffeeberry Shrub 11
Rhamnus californica ssp. occidentalis Wetern california coffeeberry Shrub 2
Rhamnus purshiana Cascara sagrada Tree, Shrub 17
Rhamnus purshiana var. annonifolia Cascara sagrada Tree, Shrub  
Rhamnus rubra Sierra coffeeberry Shrub 3
Rhamnus rubra ssp. rubra Sierra coffeeberry Shrub  
Rhamnus tomentella Hoary coffeeberry Shrub 10
Rhamnus tomentella ssp. crassifolia Velvet leaf coffeeberry Shrub  
Rhamnus tomentella ssp. cuspidata Sierra hoary coffeeberry Shrub  
Rhamnus tomentella ssp. tomentella Chaparral coffee berry Shrub 6
Rhamnus tomentella ssp. ursina Desert hoary coffeeberry Shrub  
Rhododendron Xcolumbianum Shrub  
Rhododendron neoglandulosum Western labrador tea Shrub 1
Rhus ovata Sugar bush Shrub 33
Rhus trilobata Skunkbrush Shrub 32
Rhus trilobata var. simplicifolia Single leaf skunkbrush Shrub 7
Ribes aureum Golden currant Shrub 51
Ribes aureum var. aureum Golden currant Shrub 6
Ribes cereum Wax currant Shrub 16
Ribes cereum var. cereum Wax currant Shrub 2
Ribes divaricatum var. divaricatum Spreading gooseberry Shrub  
Ribes hudsonianum Northern black currant Shrub  
Ribes hudsonianum var. petiolare Western black currant Shrub  
Ribes inerme White stemmed gooseberry Shrub 2
Ribes inerme var. inerme White stemmed gooseberry Shrub  
Ribes menziesii var. hystrix Canyon gooseberry Shrub 1
Ribes montigenum Mountain gooseberry Shrub 2
Ribes nevadense Mountain pink currant Shrub 11
Ribes roezlii Sierra gooseberry Shrub 10
Ribes roezlii var. roezlii Sierra gooseberry Shrub 3
Ribes velutinum Desert gooseberry Shrub  
Ribes viscosissimum Sticky current Shrub  
Ribes viscosissimum var. hallii Hall's sticky currant Shrub  
Rosa bridgesii Wood rose Shrub 1
Rosa californica California wild rose Shrub 54
Rosa gymnocarpa Wood rose Shrub 19
Rosa nutkana var. muriculata Nootka rose Shrub  
Rosa nutkana var. nutkana Nootka rose Shrub  
Rosa woodsii Woods' rose Shrub 28
Rosa woodsii ssp. ultramontana Interior rose Shrub 4
Rosa woodsii var. gratissima Tehachapi rose Shrub 2
Rosa woodsii var. ultramontana Wild rose Shrub 4
Rosa yainacensis Cascade rose Shrub 1
Rubus aboriginum Garden dewberry Vine, Shrub  
Rubus leucodermis White bark raspberry Shrub 8
Rubus leucodermis var. bernardinus White bark raspberry Shrub 8
Rubus leucodermis var. leucodermis Whitebark raspberry Shrub 8
Rubus leucodermis var. trinitatis Whitebark raspberry Shrub 8
Rubus parviflorus Thimbleberry Vine, Shrub 37
Rubus parviflorus var. parviflorus Thimbleberry Vine, Shrub 37
Rubus parviflorus var. velutinus Thimbleberry Vine, Shrub 37
Rubus spectabilis var. franciscanus Salmon berry Shrub 23
Rubus spectabilis var. spectabilis Salmonberry Shrub 23
Salazaria mexicana Mexican bladder sage Shrub 5
Salix arctica Arctic willow Shrub 1
Salix boothii Booth's willow Shrub  
Salix brachycarpa ssp. brachycarpa Short fruited willow Shrub  
Salix eastwoodiae Mountain willow Shrub 1
Salix exigua Narrowleaf willow Tree, Shrub 27
Salix geyeriana Geyer's willow Shrub 2
Salix hindsiana Sandbar willow Tree, Shrub 26
Salix jepsonii Jepson's willow Shrub  
Salix lasiandra var. caudata Shining willow Shrub  
Salix lasiolepis Arroyo willow Tree, Shrub 25
Salix lasiolepis var. bigelovii Arroyo willow Tree, Shrub 25
Salix lemmonii Lemmon's willow Shrub 2
Salix lucida Shining willow Tree, Shrub 20
Salix lucida ssp. caudata Shining willow Shrub  
Salix lutea Yellow willow Shrub 1
Salix melanopsis Dusky willow Tree, Shrub 4
Salix petrophila Alpine willow Tree, Shrub 1
Salix planifolia ssp. planifolia Tea leaved willow Shrub  
Salix prolixa Mackenzie's willow Tree, Shrub 2
Salix reticulata ssp. nivalis Snow willow Shrub  
Salix scouleriana Scouler willow Tree, Shrub 17
Salvia apiana var. apiana White sage Shrub 60
Salvia dorrii Dorr's sage Shrub 10
Salvia dorrii var. dorrii Dorr's sage Shrub 2
Salvia dorrii var. incana Fleshy sage Shrub  
Salvia dorrii var. pilosa Hairy sage Shrub  
Sambucus melanocarpa Black elderberry Shrub 3
Sambucus mexicana Elderberry Tree, Shrub 42
Sambucus nigra Black elderberry Shrub 13
Sambucus nigra ssp. caerulea Blue elderberry Shrub 62
Sambucus racemosa Red elderberry Shrub 31
Sambucus racemosa var. melanocarpa Rocky mountain elder Shrub 3
Sambucus racemosa var. microbotrys Red elderberry Shrub 3
Sambucus racemosa var. racemosa Red elderberry Shrub 5
Sarcobatus baileyi Bailey's greasewood Shrub  
Sarcobatus vermiculatus Greasewood Shrub 3
Sarcocornia utahensis Utah glasswort Shrub  
Shepherdia argentea Buffalo berry Tree, Shrub 11
Sorbus scopulina Mountain ash Shrub 7
Sorbus scopulina var. cascadensis Cascade mountain ash Shrub 7
Sorbus scopulina var. scopulina Mountain ash Shrub 7
Spiraea densiflora Dense flowered spiraea Shrub 16
Spiraea densiflora ssp. splendens Mountain spirea Shrub 5
Spiraea douglasii Douglas spiraea Shrub 26
Spiraea splendens Rose meadowsweet Shrub 16
Stephanomeria blairii Blair's stephanomeria Shrub 2
Symphoricarpos acutus Creeping snowberry Shrub 17
Symphoricarpos albus Common snowberry Shrub 41
Symphoricarpos hesperius Creeping snowberry Shrub 17
Symphoricarpos longiflorus Desert snowberry Shrub 1
Symphoricarpos mollis Snowberry Shrub 18
Symphoricarpos rotundifolius Mountain snowberry Shrub 3
Symphoricarpos rotundifolius var. rotundifolius Snowberry Shrub  
Tetradymia canescens Gray horsebrush Shrub 1
Tetradymia glabrata Little leaf horsebrush Shrub  
Tetradymia spinosa Spiny horsebrush Shrub (stem succulent) 3
Vaccinium cespitosum Dwarf bilberry Shrub 2
Vaccinium uliginosum Blueberry Shrub 2
Vaccinium uliginosum ssp. occidentale Western blueberry Shrub 2
Vaccinium uliginosum ssp. uliginosum European blueberry Shrub  
Viburnum edule Squashberry Shrub  
Viguiera parishii Parish viguiera Shrub 5
Viguiera reticulata Net veined viguiera Shrub  
Yucca whipplei Our lord's candle Shrub 31
Yucca whipplei ssp. cespitosa Chaparral yucca Shrub 8
  Lifeform: Tree75 plants
Abies Xshastensis Shasta red fir Tree  
Abies concolor White silver fir Tree 22
Abies concolor var. lowiana California white fir Tree  
Abies magnifica Magnificant silver fir Tree 3
Abies magnifica var. magnifica California red fir Tree  
Acer macrophyllum Bigleaf maple Tree 52
Acer negundo Boxelder Tree 31
Acer negundo var. californicum California box elder Tree 31
Acer negundo var. interius Boxelder Tree 28
Alnus rhombifolia White alder Tree 39
Callitropsis abramsiana Santa cruz cypress Tree 1
Callitropsis bakeri Modoc cypress Tree 2
Callitropsis forbesii Tecate cypress Tree 2
Callitropsis goveniana Gowen cypress Tree  
Callitropsis macrocarpa Monterey cypress Tree 5
Callitropsis nevadensis Piute cypress Tree  
Callitropsis pygmaea Pygmy cypress Tree 1
Callitropsis stephensonii Arizona cypress Tree 3
Calocedrus decurrens Incense cedar Tree 40
Cercidium floridum ssp. floridum Blue palo verde Tree 7
Cupressus abramsiana Santa cruz cypress Tree 2
Cupressus arizonica ssp. nevadensis Piute cypress Tree  
Cupressus bakeri Baker's cypress Tree 7
Cupressus forbesii Tecate cypress Tree 6
Cupressus goveniana Gowen cypress Tree 3
Cupressus goveniana ssp. goveniana Gowen cypress Tree  
Cupressus goveniana ssp. pigmaea Pygmy cypress Tree 2
Cupressus lawsoniana Port orford cedar Tree 13
Cupressus macrocarpa Monterey cypress Tree 24
Cupressus nootkatensis Alaska cedar Tree 1
Cupressus stephensonii Arizona cypress Tree 4
Fraxinus latifolia Oregon ash Tree 30
Juglans californica var. californica Southern california black walnut Tree 14
Juglans californica var. hindsii Northern california black walnut Tree 13
Juniperus grandis Sierra juniper Tree  
Juniperus occidentalis Western juniper Tree 2
Juniperus occidentalis var. australis Sierra juniper Tree  
Juniperus occidentalis var. occidentalis Western juniper Tree 2
Lyonothamnus floribundus ssp. asplenifolius Santa cruz island ironwood Tree 5
Pinus albicaulis Whitebark pine Tree 1
Pinus contorta Lodgepole pine Tree 28
Pinus contorta ssp. murrayana Lodgepole pine Tree 4
Pinus flexilis Limber pine Tree 6
Pinus jeffreyi Jeffrey pine Tree 16
Pinus lambertiana Sugar pine Tree 12
Pinus monophylla Single leaf pinyon Tree 10
Pinus monophylla var. fallax Singleleaf pinyon Tree 10
Pinus monophylla var. monophylla Singleleaf pinyon Tree 10
Pinus monticola Little sugar pine Tree 10
Pinus ponderosa Yellow pine Tree 28
Pinus ponderosa var. ponderosa North plateau ponderosa pine Tree 2
Pinus ponderosa var. washoensis Washoe pine Tree  
Pinus washoensis Washoe pine Tree  
Platanus racemosa var. wrightii Arizona sycamore Tree 5
Populus balsamifera ssp. trichocarpa Black cottonwood Tree 28
Populus fremontii Fremont cottonwood Tree 33
Populus tremuloides Quaking aspen Tree 29
Populus trichocarpa Black cottonwood Tree 28
Prunus angustifolia var. angustifolia Chickasaw plum Tree  
Pseudotsuga menziesii Douglas fir Tree 30
Pseudotsuga menziesii var. menziesii Douglas fir Tree 5
Quercus Xkinseliae Tree  
Quercus chrysolepis var. nana Canyon live oak Tree 25
Quercus garryana Oregon oak Tree 24
Quercus garryana var. garryana Oregon oak Tree 1
Quercus kelloggii California black oak Tree 26
Salix gooddingii Gooding's willow Tree 8
Salix laevigata Polished willow Tree 19
Salix lasiandra Pacific willow Tree 21
Salix lasiandra var. lasiandra Pacific willow Tree 6
Salix lucida ssp. lasiandra Shining willow Tree 6
Taxus brevifolia var. brevifolia Tree 11
Taxus brevifolia var. polychaeta Pacific yew Tree 11
Taxus brevifolia var. reptaneta Pacific yew Tree 11
Tsuga mertensiana Patton spruce Tree 13
 
NB: found in Lassen County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.