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Criteria:   found in Humboldt County  •   is native  •  group by lifeform
2908  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual605 plants
Achyrachaena mollis Blow wives Annual herb 2
Acmispon americanus American bird's foot trefoil Annual herb 3
Acmispon americanus var. americanus Spanish lotus Annual herb 1
Acmispon brachycarpus Short podded lotus Annual herb  
Acmispon denticulatus Toothed lotus Annual herb  
Acmispon micranthus Small flowered lotus Annual herb 2
Acmispon parviflorus Hill lotus Annual herb  
Acmispon strigosus Strigose lotus Annual herb 3
Acmispon wrangelianus Chilean trefoil Annual herb  
Agoseris heterophylla Mountain dandelion Annual herb  
Agoseris heterophylla var. heterophylla Annual agoseris Annual herb  
Agrostis microphylla Little leaf bentgrass Annual grass  
Alopecurus saccatus Foxtail Annual grass  
Amsinckia eastwoodiae Eastwood's fiddleneck Annual herb 1
Amsinckia intermedia Common fiddleneck Annual herb  
Amsinckia lunaris Bent flowered fiddleneck Annual herb  
Amsinckia lycopsoides Tarweed fiddleneck Annual herb  
Amsinckia menziesii Fiddleneck Annual herb 1
Amsinckia menziesii var. intermedia Orange flowered menzies' fiddleneck Annual herb 1
Amsinckia menziesii var. menziesii Small flowered fiddleneck Annual herb 1
Amsinckia retrorsa Rigid fiddleneck Annual herb  
Amsinckia spectabilis Seaside fiddleneck Annual herb  
Anagallis minima Chaffweed Annual herb  
Antirrhinum vexillo-calyculatum Brewer's snapdragon Annual herb  
Antirrhinum vexillocalyculatum Wiry snapdragon Annual herb  
Antirrhinum vexillocalyculatum ssp. breweri Wiry snapdragon Annual herb  
Aphanes occidentalis Ladie's mantle Annual, Perennial herb  
Aphyllon purpureum Naked broom rape Annual herb  
Aristida oligantha Oldfield three awn Annual grass  
Astragalus rattanii Rattan's milk vetch Annual herb  
Athysanus pusillus Dwarf athysanus Annual herb  
Atriplex gmelinii Gmelin's saltbush Annual herb  
Atriplex gmelinii var. gmelinii Gmelin's saltbush Annual herb  
Atriplex patula Spear oracle Annual herb 3
Atriplex patula var. obtusa Spear oracle Annual herb  
Beckmannia syzigachne American sloughgrass Annual grass 5
Bidens frondosa Sticktight Annual herb  
Bromus orcuttianus Orcutt's brome grass Annual grass 1
Bromus vulgaris Common brome Annual grass 1
Calandrinia ciliata Redmaids Annual herb 7
Calandrinia menziesii Calandrinia Annual herb 7
Callitriche heterophylla var. bolanderi Bolander's water starwort Annual herb  
Callitriche heterophylla var. heterophylla Varied leaved water starwort Annual herb  
Callitriche marginata Winged water starwort Annual herb (aquatic)  
Callitriche palustris Vernal water-starwort Annual herb  
Callitriche trochlearis Water starwort Annual herb (aquatic)  
Callitriche verna Water starwort Annual herb  
Calycadenia fremontii Fremont's calycadenia Annual herb  
Calycadenia micrantha Small flowered calycadenia Annual herb  
Calycadenia multiglandulosa Rosin weed Annual herb  
Calycadenia truncata Rosin weed Annual herb  
Calycadenia truncata ssp. microcephala Oregon western rosinweed Annual herb  
Calyptridium umbellatum Pussy toes Annual, Perennial herb 3
Camissonia contorta Contorted sun cup Annual herb  
Camissonia strigulosa Contorted primrose Annual herb  
Camissoniopsis cheiranthifolia ssp. cheiranthifolia Beach evening-primrose Annual, Perennial herb 1
Cardamine oligosperma Idaho bittercress Annual, Perennial herb  
Castilleja ambigua Johnny nip Annual herb  
Castilleja ambigua ssp. ambigua Johnny nip Annual herb  
Castilleja ambigua ssp. humboldtiensis Humboldt bay owl's clover Annual herb (hemiparasitic)  
Castilleja ambigua var. ambigua Johnny-nip Annual herb  
Castilleja ambigua var. humboldtiensis Humboldt bay owl's-clover Annual herb  
Castilleja attenuata Narrow leaved owl's clover Annual herb  
Castilleja densiflora Dense flower owl's clover Annual herb  
Castilleja exserta Owl's clover Annual herb 10
Castilleja exserta ssp. exserta Purple owl's clover Annual herb 5
Castilleja exserta ssp. latifolia Purple owl's clover Annual herb  
Castilleja rubicundula Cream sacs Annual herb  
Castilleja rubicundula ssp. lithospermoides Cream sacs Annual herb  
Castilleja tenuis Hairy owl's clover Annual herb  
Caulanthus lasiophyllus California mustard Annual herb  
Centaurium davyi Davy's centaury Annual herb  
Centaurium exaltatum Cancha lagua Annual herb  
Centaurium muehlenbergii Monterey centaury Annual herb 2
Centaurium venustum Beautiful centaury Annual herb  
Centromadia fitchii Spikeweed Annual herb  
Centunculus minimus False pimpernel Annual herb  
Chaenactis douglasii Chaenactis Annual, Perennial herb  
Chaenactis douglasii var. douglasii Dusty pincushions Annual, Perennial herb  
Chamaesyce serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge Annual herb  
Chamomilla occidentalis Western chamomile Annual herb  
Chamomilla suaveolens Common pineapple weed Annual herb  
Chenopodium atrovirens Dark green goosefoot Annual herb  
Chenopodium incognitum Masked goosefoot Annual herb  
Chenopodium rubrum Red goosefoot Annual herb  
Chenopodium rubrum var. rubrum Red goosefoot Annual herb  
Chloropyron maritimum Salt marsh bird's beak Annual herb  
Chloropyron maritimum ssp. palustre Point reyes bird's-beak Annual herb  
Cicendia quadrangularis Common microcalis Annual herb  
Cirsium quercetorum Brownie thistle Annual, Perennial herb 1
Clarkia affinis Chaparral fairyfan Annual herb  
Clarkia amoena Farewell to spring Annual herb 17
Clarkia amoena ssp. amoena Farewell to spring Annual herb 1
Clarkia amoena ssp. huntiana Farewell to spring Annual herb  
Clarkia amoena ssp. whitneyi Farewell to spring Annual herb 2
Clarkia concinna Red ribbons Annual herb 5
Clarkia concinna ssp. concinna Red ribbons Annual herb  
Clarkia davyi Davy's clarkia Annual herb 1
Clarkia gracilis Graceful clarkia Annual herb 3
Clarkia gracilis ssp. gracilis Graceful clarkia Annual herb  
Clarkia gracilis ssp. sonomensis Sonoma clarkia Annual herb  
Clarkia gracilis ssp. tracyi Tracy's clarkia Annual herb 1
Clarkia purpurea Purple clarkia Annual herb 9
Clarkia purpurea ssp. purpurea Purple clarkia Annual herb 2
Clarkia purpurea ssp. quadrivulnera Purple clarkia Annual herb 4
Clarkia purpurea ssp. viminea Large godetia Annual herb  
Clarkia rhomboidea Tongue clarkia Annual herb 2
Clarkia rubicunda Farewell to spring Annual herb 8
Clarkia unguiculata Woodland clarkia Annual herb 18
Claytonia exigua Little spring beauty Annual herb  
Claytonia exigua ssp. exigua Viridis Annual herb  
Claytonia exigua ssp. glauca Blue leaved spring beauty Annual herb  
Claytonia parviflora Narrow leaved miner's lettuce Annual herb 2
Claytonia parviflora ssp. parviflora Miner'slettuce Annual herb 1
Claytonia parviflora ssp. utahensis Streambank springbeauty Annual herb 1
Claytonia perfoliata Miner's lettuce Annual herb 6
Claytonia perfoliata ssp. intermontana Miner's lettuce Annual herb  
Claytonia perfoliata ssp. mexicana Southern miner's lettuce Annual herb  
Claytonia perfoliata ssp. perfoliata Claytonia Annual herb  
Claytonia rubra Red stemmed spring beauty Annual herb  
Claytonia rubra ssp. depressa Red stemmed spring beauty Annual herb  
Claytonia rubra ssp. rubra Red stemmed miner's lettuce Annual herb  
Claytonia saxosa Brandegee's spring beauty Annual herb  
Claytonia washingtoniana Suksdorf's spring beauty Annual herb  
Collinsia bartsiifolia White collinsia Annual herb 1
Collinsia corymbosa Round headed chinese houses Annual herb  
Collinsia grandiflora Large flowered collinsia Annual herb 1
Collinsia greenei Greene's collinsia Annual herb  
Collinsia heterophylla Chinese houses Annual herb 20
Collinsia linearis Narrow leaf collinsia Annual herb  
Collinsia parviflora Few flowered blue eyed mary Annual herb 1
Collinsia rattanii Rattan's collinsia Annual herb 1
Collinsia sparsiflora Few flowered collinsia Annual herb  
Collinsia sparsiflora var. arvensis Field collinsia Annual herb  
Collinsia sparsiflora var. collina Hillside collinsia Annual herb  
Collinsia sparsiflora var. sparsiflora Few flowered collinsia Annual herb  
Collinsia tinctoria Tincture plant Annual herb 1
Collinsia torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. wrightii Wright's collinsia Annual herb  
Collomia diversifolia Serpentine collomia Annual herb  
Collomia grandiflora Large flowered collomia Annual herb 4
Collomia heterophylla Varied leaved collomia Annual herb  
Collomia linearis Narrow leaved collomia Annual herb  
Collomia tinctoria Yellow staining collomia Annual herb  
Collomia tracyi Tracy's collomia Annual herb  
Conyza canadensis Canada horseweed Annual herb  
Conyza canadensis var. canadensis Canadian horseweed Annual herb  
Cordylanthus maritimus Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. palustris Point reyes bird's beak Annual herb (hemiparasitic)  
Cordylanthus tenuis Slender bird's beak Annual herb  
Cordylanthus tenuis ssp. viscidus Viscid bird's beak Annual herb  
Crassula aquatica Aquatic pygmy weed Annual herb  
Crassula connata Sand pygmy weed Annual herb 1
Crassula saginoides Aquatic pygmy weed Annual herb  
Crocidium multicaule Spring gold Annual herb  
Croton setiger Turkey-mullein Annual herb 4
Croton setigerus Dove weed Annual herb 1
Cryptantha affinis Common cryptantha Annual herb  
Cryptantha flaccida Beaked cryptantha Annual herb  
Cryptantha intermedia Common cryptanth Annual herb  
Cryptantha leiocarpa Popcorn flower Annual herb  
Cryptantha rostellata Beaked cryptantha Annual herb  
Cryptantha simulans Pine cryptantha Annual herb  
Cryptantha torreyana Torrey's cryptantha Annual herb  
Cuscuta californica California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. breviflora California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. californica Short flowered dodder Annual herb, Vine (parasitic)  
Cuscuta campestris Field dodder Annual herb, Vine (parasitic)  
Cuscuta occidentalis California dodder Annual herb, Vine (parasitic)  
Cuscuta pacifica Goldenthread Annual herb, Vine (parasitic)  
Cuscuta pacifica var. pacifica Dodder Annual herb, Vine (parasitic)  
Cuscuta pentagona Western field dodder Annual herb, Vine (parasitic)  
Cuscuta salina Saltmarsh dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. major Dodder Annual herb, Vine (parasitic)  
Cuscuta subinclusa Canyon dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii Mountain dodder Annual herb, Vine (parasitic)  
Cyperus acuminatus Short pointed cyperus Annual grass  
Cyperus squarrosus Awned cyperus Annual grass  
Daucus pusillus Wild carrot Annual herb 1
Deinandra corymbosa Coastal tarweed Annual herb 1
Deinandra corymbosa ssp. corymbosa Coastal tarweed Annual herb  
Deschampsia danthonioides Annual hairgrass Annual grass  
Descurainia incisa Mountain tansy mustard Annual herb  
Descurainia pinnata Yellow tansy mustard Annual herb  
Diplacus douglasii Purple mouse ears Annual herb 1
Diplacus kelloggii Kellogg's monkeyflower Annual herb  
Diplacus nanus Dwarf monkey flower Annual herb  
Dodecahema leptoceras Slender horned spineflower Annual herb  
Downingia bella Hoover's downingia Annual herb  
Downingia elegans Elegant downingia Annual herb  
Downingia insignis Harlequin downingia Annual herb  
Downingia willamettensis Cascade downingia Annual herb  
Echinochloa muricata var. microstachya Rough barnyardgrass Annual grass  
Eleocharis engelmannii Engelmann's spikerush Annual grass  
Eleocharis obtusa Broad spiked spikerush Annual grass 3
Eleocharis obtusa var. engelmannii Engelmann's spikerush Annual grass  
Epilobium brachycarpum Willow herb Annual herb 1
Epilobium campestre Smooth boisduvalia Annual herb  
Epilobium densiflorum Willow herb Annual herb 1
Epilobium foliosum California willowherb Annual herb  
Epilobium minutum Minute willowherb Annual herb  
Epilobium paniculatum var. jucundum Autumn willowherb Annual herb 1
Epilobium pygmaeum Smooth boisduvalia Annual herb  
Epilobium torreyi Narrow boisduvalia Annual herb  
Eragrostis hypnoides Teal lovegrass Annual grass  
Eragrostis mexicana Mexican lovegrass Annual grass  
Eragrostis mexicana ssp. virescens Orcutt's eragrostis Annual grass  
Eragrostis pectinacea Tufted lovegrass Annual grass  
Eragrostis pectinacea var. pectinacea Tufted lovegrass Annual grass  
Eremocarpus setigerus Turkey mullein Annual herb 4
Erigeron canadensis Canada horseweed Annual herb  
Erigeron strigosus var. septentrionalis Prairie fleabane Annual, Perennial herb  
Erigeron strigosus var. strigosus Prairie fleabane Annual, Perennial herb  
Eriogonum luteolum Wicker buckwheat Annual herb  
Eriogonum luteolum var. luteolum Golden buckwheat Annual herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Erythranthe alsinoides Chickweed monkeyflower Annual herb  
Erythranthe arvensis Annual herb  
Erythranthe breweri Brewer's monkeyflower Annual herb  
Erythranthe floribunda Many flowered monkey flower Annual herb 1
Erythranthe grandis Annual herb  
Erythranthe guttata Yellow monkey flower Annual, Perennial herb (rhizomatous) 37
Erythranthe microphylla Small leaved monkeyflower Annual herb  
Erythranthe pulsiferae Candelabrum monkey flower Annual herb  
Erythranthe trinitiensis Pink-margined monkeyflower Annual herb  
Eschscholzia californica California poppy Annual, Perennial herb 50
Euphorbia crenulata Chinesecaps Annual, Perennial herb  
Euphorbia serpillifolia Thyme-leafed spurge Annual herb  
Euphorbia serpillifolia ssp. serpillifolia Thyme leafed spurge Annual, Perennial herb  
Euphorbia spathulata Reticulate seeded spurge Annual herb  
Festuca microstachys Small fescue Annual grass  
Festuca octoflora Sixweeks grass Annual grass 5
Filago californica California filago Annual herb  
Floerkea proserpinacoides False mermaid Annual herb  
Galium aparine Cleavers Annual herb  
Galium bifolium Low mountain bedstraw Annual herb  
Galium triflorum Sweet bedstraw Annual herb  
Gayophytum diffusum Spreading groundsmoke Annual herb  
Gayophytum diffusum ssp. parviflorum Small flowered groundsmoke Annual herb  
Gayophytum heterozygum Zig zag gayophytum Annual herb  
Gayophytum humile Dwarf groundsmoke Annual herb  
Gayophytum racemosum Black foot gayophytum Annual herb  
Gayophytum ramosissimum Pinyon gayophytum Annual herb  
Gentianopsis simplex Hiker's fringed gentian Annual herb  
Geranium bicknellii Bicknell's geranium Annual herb  
Geranium carolinianum Carolina geranium Annual herb  
Gilia capillaris Smooth leaved gilia Annual herb  
Gilia capitata Blue field gilia Annual herb 19
Gilia capitata ssp. capitata Blue field gilia Annual herb 2
Gilia capitata ssp. chamissonis Blue field gilia Annual herb 3
Gilia capitata ssp. pacifica Pacific blue field gilia Annual herb  
Gilia inconspicua Shy gilia Annual herb  
Gilia millefoliata Manyleaf gilia Annual herb  
Gilia sinistra Clockwise gilia Annual herb  
Gilia sinistra ssp. pinnatisecta Cut leaf clockwise gilia Annual herb  
Gilia sinistra ssp. sinistra Clockwise gilia Annual herb  
Gilia tricolor Bird's eyes Annual herb 15
Gilia tricolor ssp. diffusa Bird's eyes Annual herb  
Gilia tricolor ssp. tricolor Bird's eyes Annual herb 1
Githopsis specularioides Venus' looking glass Annual herb  
Gnaphalium californicum California everlasting Annual, Perennial herb 14
Gnaphalium palustre Lowland cudweed Annual herb  
Gnaphalium purpureum Purple cudweed Annual, Perennial herb 1
Gnaphalium stramineum Cotton batting Annual, Perennial herb 4
Gratiola ebracteata Common hedge hyssop Annual herb  
Guillenia lasiophylla Shaggy thelypod Annual herb  
Helianthus bolanderi Bolander's sunflower Annual, Perennial herb 2
Hemizonella minima Opposite leaved tarweed Annual herb  
Hemizonia congesta Hayfield tarweed Annual herb 5
Hemizonia congesta ssp. calyculata Mendocino tarplant Annual herb  
Hemizonia congesta ssp. clevelandii Cleveland's tarweed Annual herb  
Hemizonia congesta ssp. tracyi Tracy's tarplant Annual herb  
Hemizonia corymbosa Coastal tarweed Annual herb 1
Hemizonia corymbosa ssp. macrocephala Central coast tarweed Annual herb  
Hemizonia fitchii Spikeweed Annual herb  
Hesperevax acaulis Dwarf evax Annual herb  
Hesperevax acaulis var. robustior Big evax Annual herb  
Hesperevax sparsiflora Few flowered evax Annual herb  
Hesperevax sparsiflora var. brevifolia Short leaved evax Annual herb  
Hesperolinon adenophyllum Glandular western flax Annual herb  
Hesperolinon micranthum Small flower western flax Annual herb  
Heterocodon rariflorum Heterocodon Annual herb  
Heterotheca sessiliflora Golden aster Annual herb 9
Hordeum depressum Alkali barley Annual grass 3
Howellia aquatilis Water howellia Annual herb (aquatic)  
Hypericum anagalloides Creeping St. John's wort Annual, Perennial herb 1
Isolepis carinata Keeled bulrush Annual grass  
Isolepis cernua Low bulrush Annual grass 14
Juncus bufonius Common toad rush Annual grass 6
Juncus bufonius var. bufonius Toad rush Annual grass  
Lagophylla glandulosa Glandular hareleaf Annual herb  
Lagophylla ramosissima Common hareleaf Annual herb  
Landoltia punctata Dotted duckmeat Annual, Perennial herb  
Lasthenia californica Goldfields Annual herb 12
Lasthenia californica ssp. californica California goldfields Annual herb 2
Lasthenia glaberrima Smooth goldfields Annual herb  
Lasthenia gracilis Needle goldfields Annual herb  
Lasthenia macrantha Perennial goldfields Annual herb 3
Lasthenia macrantha ssp. macrantha Perennial goldfields Annual herb 3
Lasthenia maritima Maritime goldfields Annual herb  
Layia carnosa Beach layia Annual herb  
Layia gaillardioides Woodland layia Annual herb 4
Lepidium densiflorum Common pepper grass Annual herb  
Lepidium lasiocarpum Shaggyfruit pepperweed Annual herb  
Lepidium latipes Dwarf pepper grass Annual herb  
Lepidium nitidum Shining pepper grass Annual herb 2
Lepidium oblongum Veiny pepper grass Annual herb  
Lepidium oxycarpum Sharp podded pepper grass Annual herb  
Lepidium strictum Peppergrass Annual herb  
Leptosiphon acicularis Bristly leptosiphon Annual herb  
Leptosiphon androsaceus False babystars Annual herb 1
Leptosiphon bicolor True babystars Annual herb  
Leptosiphon bolanderi Bolander's linanthus Annual herb  
Leptosiphon ciliatus Whiskerbrush Annual herb 1
Leptosiphon ciliatus ssp. ciliatus Whiskerbrush Annual herb  
Leptosiphon filipes Thread linanthus Annual herb  
Leptosiphon harknessii Harkness' flaxflower Annual herb  
Leptosiphon latisectus Broad lobed leptosiphon Annual herb  
Leptosiphon parviflorus Variable linanthus Annual herb 1
Lessingia nemaclada Thread stem lessingia Annual herb  
Limnanthes douglasii Common meadow foam Annual herb 7
Limnanthes douglasii ssp. douglasii Douglas' meadowfoam Annual herb  
Limnanthes douglasii ssp. nivea Snow white meadowfoam Annual herb 3
Linanthus acicularis Bristly linanthus Annual herb  
Linanthus androsaceus Common linanthus Annual herb 1
Linanthus bicolor True baby stars Annual herb  
Linanthus bolanderi Bolander's linanthus Annual herb  
Linanthus ciliatus Whisker brush linanthus Annual herb 1
Linanthus filipes Filiform linanthus Annual herb  
Linanthus harknessii Harkness linanthus Annual herb  
Linanthus latisectus Napa linanthus Annual herb  
Linanthus parviflorus Common linanthus Annual herb 1
Linaria canadensis Toad flax Annual, Perennial herb 1
Linaria canadensis var. texana Toad flax Annual, Perennial herb 1
Lipocarpha occidentalis Western hemicarpha Annual grass  
Logfia filaginoides California cottonrose Annual herb  
Lotus denticulatus Toothed lotus Annual herb  
Lotus hamatus Small flowered lotus Annual herb 2
Lotus humistratus Short podded lotus Annual herb  
Lotus micranthus Hill lotus Annual herb  
Lotus purshianus Bird's foot trefoil Annual herb 6
Lotus purshianus var. purshianus Spanish lotus Annual herb 1
Lotus strigosus Strigose lotus Annual herb 3
Lotus unifoliolatus American bird's foot trefoil Annual herb 1
Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil Annual herb  
Lotus wrangelianus Chilean trefoil Annual herb  
Lupinus affinis Fleshy lupine Annual herb  
Lupinus bicolor Lupine Annual, Perennial herb 15
Lupinus luteolus Butter lupine Annual herb 1
Lupinus microcarpus var. densiflorus Chick lupine Annual herb 13
Lupinus nanus Valley sky lupine Annual herb 11
Lupinus pachylobus Big pod lupine Annual herb  
Lysimachia minima Chaffweed Annual herb  
Madia anomala Tarweed Annual herb  
Madia citriodora Lemon scented tarweed Annual herb  
Madia elegans Common madia Annual herb 13
Madia elegans ssp. elegans Common madia Annual herb 1
Madia exigua Small tarweed Annual herb  
Madia glomerata Mountain tarweed Annual herb  
Madia gracilis Gumweed Annual herb 1
Madia minima Little tarweed Annual herb  
Madia sativa Coastal tarweed Annual herb  
Malacothrix clevelandii Cleveland's malacothrix Annual herb  
Malacothrix floccifera Woolly malacothrix Annual herb 1
Matricaria discoidea Pineapple weed Annual herb 3
Matricaria occidentalis Valley mayweed Annual herb  
Mentzelia dispersa Scattered blazing star Annual herb  
Micropus californicus Q tips Annual herb 1
Micropus californicus var. californicus Slender cottonweed Annual herb  
Microseris acuminata Sierra foothills microseris Annual herb 1
Microseris bigelovii Coast microseris Annual herb  
Microseris douglasii Douglas' microseris Annual herb  
Microsteris gracilis Slender phlox Annual herb  
Microsteris gracilis var. gracilis Slender phlox Annual herb  
Mimetanthe pilosa Snouted monkey flower Annual herb  
Mimulus alsinoides Chickweed monkeyflower Annual herb  
Mimulus breweri Brewer's monkeyflower Annual herb  
Mimulus douglasii Purple mouse ears Annual herb 1
Mimulus floribundus Many flowered monkey flower Annual herb 1
Mimulus guttatus Yellow monkey flower Annual, Perennial herb (rhizomatous) 36
Mimulus kelloggii Kellogg's monkeyflower Annual herb  
Mimulus microphyllus Small leaved monkeyflower Annual herb 35
Mimulus nanus Dwarf monkey flower Annual herb  
Mimulus nanus var. nanus Dwarf monkey flower Annual herb  
Mimulus parishii Parish mimulus Annual herb 35
Mimulus pilosus Snouted monkey flower Annual herb  
Mimulus pulsiferae Candelabrum monkey flower Annual herb  
Minuartia californica Sandwort Annual herb  
Minuartia douglasii Douglas' sandwort Annual herb  
Minuartia pusilla Annual sandwort Annual herb  
Monardella breweri ssp. glandulifera Brewer's monardella Annual herb 1
Monardella breweri ssp. lanceolata Mustang mint Annual herb 1
Monardella breweri ssp. microcephala Brewer's monardella Annual herb 1
Monardella lanceolata Mustang mint Annual herb 1
Montia diffusa Diffuse miner's lettuce Annual herb  
Montia fontana Water montia Annual herb  
Montia howellii Howell's montia Annual herb  
Montia linearis Narrow leaved water chickweed Annual herb  
Muhlenbergia filiformis Slender muhly Annual, Perennial grass  
Myosurus minimus Little mouse tail Annual herb  
Navarretia capillaris Miniature gilia Annual herb  
Navarretia divaricata Mountain navarretia Annual herb  
Navarretia divaricata ssp. divaricata Mountain navarretia Annual herb  
Navarretia divaricata ssp. vividior Mountain navarretia Annual herb  
Navarretia intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. propinqua Great basin navarretia Annual herb  
Navarretia leucocephala White headed navarretia Annual herb  
Navarretia leucocephala ssp. bakeri Baker's navarretia Annual herb  
Navarretia linearifolia Navarretia Annual herb  
Navarretia linearifolia ssp. linearifolia Navarretia Annual herb  
Navarretia linearifolia ssp. pinnatisecta Pinnate-leaved navarretia Annual herb  
Navarretia mellita Skunk navarretia Annual herb  
Navarretia paradoxiclara Navarretia Annual herb  
Navarretia paradoxinota Navarretia Annual herb  
Navarretia propinqua Annual herb  
Navarretia pubescens Purple navarretia Annual herb  
Navarretia sinistra Alva day's pincushionplant Annual herb  
Navarretia sinistra ssp. pinnatisecta Pinnate leaved navarretia Annual herb  
Navarretia sinistra ssp. sinistra Alva day's gilia Annual herb  
Navarretia squarrosa Skunkweed Annual herb  
Navarretia tagetina Marigold navarretia Annual herb  
Navarretia viscidula Sticky navarretia Annual herb  
Navarretia vividior Mountain navarretia Annual herb  
Nemophila heterophylla Canyon nemophila Annual herb  
Nemophila maculata Five spot Annual herb 17
Nemophila menziesii Baby blue eyes Annual herb 17
Nemophila menziesii var. atomaria Baby blue eyes Annual herb  
Nemophila menziesii var. menziesii Baby blue eyes Annual herb  
Nemophila parviflora Small flowered nemophila Annual herb  
Nemophila parviflora var. austiniae Rebecca austin's nemophila Annual herb  
Nemophila parviflora var. parviflora Small flowered nemophila Annual herb  
Nemophila pedunculata Meadow nemophila Annual herb  
Nicotiana bigelovii var. wallacei Indian tobacco Annual herb  
Nicotiana quadrivalvis Indian tobacco Annual herb 2
Nuttallanthus canadensis Canada toadflax Annual, Biennial herb  
Nuttallanthus texanus Blue toadflax Annual, Perennial herb 1
Orthocarpus cuspidatus Broad scaled owl's clover Annual herb 1
Orthocarpus cuspidatus ssp. copelandii Copeland's owl's clover Annual herb  
Orthocarpus cuspidatus ssp. cuspidatus Siskiyou mtns. orthocarpus Annual herb  
Orthocarpus imbricatus Imbricate owl's clover Annual herb  
Oxalis pilosa Hairy wood sorrel Annual herb  
Panicum capillare Old witch grass Annual grass 2
Panicum oligosanthes Heller's rosette grass Annual grass  
Panicum oligosanthes var. scribnerianum Scribner's rosette grass Annual grass  
Persicaria lapathifolia Common knotweed Annual herb  
Phacelia ciliata Great valley phacelia Annual herb 1
Phacelia ciliata var. ciliata Great valley phacelia Annual herb  
Phacelia malvifolia Stinging phacelia Annual herb 1
Phacelia rattanii Rattan's phacelia Annual herb  
Phalaris angusta Timothy canarygrass Annual grass  
Phlox gracilis Annual phlox Annual herb  
Plagiobothrys bracteatus Bracted allocarya Annual herb  
Plagiobothrys cognatus Popcorn flower Annual herb  
Plagiobothrys hispidulus Harsh allocarya Annual herb  
Plagiobothrys nothofulvus Rusty haired popcorn flower Annual herb  
Plagiobothrys reticulatus Reticulate popcorn flower Annual herb  
Plagiobothrys reticulatus var. reticulatus Reticulate popcorn flower Annual herb  
Plagiobothrys reticulatus var. rossianorum Fort ross allocarya Annual herb  
Plagiobothrys scouleri Scouler's popcornflower Annual herb  
Plagiobothrys scouleri var. hispidulus Sleeping popcornflower Annual herb  
Plagiobothrys tenellus Slender popcorn flower Annual herb  
Plagiobothrys torreyi var. diffusus Torrey's popcornflower Annual herb  
Plantago bigelovii Long leaf plantain Annual herb  
Plantago elongata Coastal plantain Annual herb  
Plantago erecta California plantain Annual herb 6
Platystemon californicus Cream cups Annual herb 2
Plectritis brachystemon Short spurred plectritis Annual herb  
Plectritis ciliosa Long spurred plectritis Annual herb  
Plectritis ciliosa ssp. insignis Showy plectritis Annual herb  
Plectritis congesta Sea blush Annual herb 1
Plectritis congesta ssp. brachystemon Shortspur seablush Annual herb  
Plectritis congesta ssp. congesta Sea blush Annual herb  
Plectritis macrocera Plectritis Annual herb  
Poa bolanderi Bolander's bluegrass Annual grass  
Poa howellii Howell's blue grass Annual grass  
Pogogyne zizyphoroides Sacramento mint Annual herb  
Polygonum austiniae Rebecca austin's knotweed Annual herb  
Polygonum californicum California knotweed Annual herb  
Polygonum douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. austiniae Rebecca austin's knotweed Annual herb  
Polygonum douglasii ssp. douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. johnstonii Knotweed Annual herb  
Polygonum douglasii ssp. spergulariiforme Spurry knotweed Annual herb  
Polygonum lapathifolium Common knotweed Annual herb  
Polygonum minimum Little mountain knotweed Annual herb  
Polygonum parryi Parry's knotweed Annual herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. kelloggii Kellogg's knotweed Annual herb  
Polygonum sawatchense Knotweed Annual herb  
Polygonum sawatchense ssp. oblivium Knotweed Annual, Perennial herb  
Polygonum sawatchense ssp. sawatchense Knotweed Annual, Perennial herb  
Polygonum spergulariiforme Spurry knotweed Annual herb  
Pseudognaphalium californicum Ladies' tobacco Annual, Perennial herb 13
Psilocarphus brevissimus Woolly marbles Annual herb  
Psilocarphus brevissimus var. brevissimus Woolly heads Annual herb  
Psilocarphus oregonus Woolly marbles Annual herb  
Psilocarphus tenellus Slender woolly heads Annual herb  
Rafinesquia californica California chicory Annual herb  
Ranunculus hebecarpus Pubescent fruited buttercup Annual herb  
Ranunculus lobbii Lobb's aquatic buttercup Annual herb (aquatic)  
Ranunculus pusillus Low buttercup Annual herb (aquatic)  
Ranunculus uncinatus Hooked fruit buttercup Annual, Perennial herb  
Ranunculus uncinatus var. parviflorus Small flowered hooked fruit buttercup Annual, Perennial herb  
Ranunculus uncinatus var. uncinatus Woodland buttercup Annual, Perennial herb  
Rigiopappus leptocladus Wire weed Annual herb  
Rorippa curvipes var. truncata Blunt yellow cress Annual herb  
Rorippa curvisiliqua Curvepod yellow cress Annual, Perennial herb  
Rorippa palustris Bog yellow cress Annual, Perennial herb  
Rorippa palustris ssp. palustris Bog yellowcress Annual, Perennial herb  
Rorippa palustris var. occidentalis Western bog yellow cress Annual, Perennial herb  
Rumex fueginus Golden dock Annual, Perennial herb  
Rumex maritimus Golden dock Annual, Perennial herb  
Rumex persicarioides Golden dock Annual, Perennial herb  
Sagina decumbens Trailing pearlwort Annual herb  
Sagina decumbens ssp. occidentalis Western pearlwort Annual herb  
Salicornia depressa Virginia glasswort Annual herb 7
Salvia columbariae Chia sage Annual herb 12
Scirpus cernuus Low clubrush Annual grass 14
Scirpus koilolepis Keeled bulrush Annual grass  
Scribneria bolanderi Scribneria Annual grass  
Sedum radiatum Coast range stonecrop Annual herb  
Sidalcea calycosa Checker mallow Annual herb 3
Sidalcea calycosa ssp. calycosa Checker mallow Annual herb  
Sidalcea diploscypha Fringed checker mallow Annual herb  
Silene californica California indian pink Annual herb 2
Solanum americanum White nightshade Annual, Perennial herb 2
Spergularia canadensis Canadian sandspurry Annual herb  
Spergularia canadensis var. occidentalis Northern sand spurrey Annual herb  
Spergularia marina Salt sand spurry Annual herb 1
Spergularia salina Salt sandspurry Annual herb 1
Spirodela punctata Dotted duckmeat Annual, Perennial herb  
Stellaria nitens Shining chickweed Annual herb  
Stephanomeria elata Santa barbara stephanomeria Annual herb  
Stephanomeria exigua Small wirelettuce Annual herb  
Stephanomeria virgata Twiggy wreath plant Annual herb 1
Streptanthus breweri Brewer's jewelflower Annual herb  
Streptanthus breweri var. breweri Brewer's jewelflower Annual herb  
Streptanthus tortuosus Jewelweed Annual, Perennial herb  
Streptanthus tortuosus var. orbiculatus Mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. suffrutescens Bush mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. tortuosus Mountain jewelflower Annual, Perennial herb  
Symphyotrichum hendersonii Henderson's aster Annual herb  
Symphyotrichum subspicatum Douglas aster Annual herb 9
Thysanocarpus curvipes Common fringe pod Annual herb 2
Thysanocarpus curvipes ssp. elegans Fringe Pod Annual herb  
Tonella tenella Small flowered tonella Annual herb  
Tracyina rostrata Beaked tracyina Annual herb  
Trichostema lanceolatum Vinegarweed Annual herb 2
Trichostema laxum Turpentine weed Annual herb  
Trichostema oblongum Mountain bluecurls Annual herb  
Trichostema simulatum Siskiyou bluecurls Annual herb  
Trifolium albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. dichotomum Clover Annual herb  
Trifolium albopurpureum var. olivaceum Owl's clover Annual herb  
Trifolium barbigerum Bearded clover Annual herb  
Trifolium bifidum Notch leaf clover Annual herb 2
Trifolium bifidum var. decipiens Notch leaf clover Annual herb 2
Trifolium ciliolatum Tree clover Annual herb 6
Trifolium columbinum Olive clover Annual herb  
Trifolium cyathiferum Cup clover Annual herb  
Trifolium depauperatum Dwarf sack clover Annual herb  
Trifolium depauperatum var. depauperatum Dwarf bladder clover Annual herb  
Trifolium dichotomum Branched indian clover Annual herb  
Trifolium fucatum Bull clover Annual herb 5
Trifolium gracilentum Pin point clover Annual herb 4
Trifolium macraei Macrae's clover Annual herb  
Trifolium microcephalum Small head clover Annual herb 4
Trifolium microdon Valparaiso clover Annual herb  
Trifolium obtusiflorum Creek clover Annual herb 5
Trifolium oliganthum Few flowered clover Annual herb 1
Trifolium olivaceum Olive clover Annual herb  
Trifolium variegatum Variegated clover Annual herb 1
Trifolium variegatum var. geminiflorum Small-flowered variegated clover Annual herb 1
Trifolium variegatum var. major Large variegated clover Annual herb 1
Trifolium variegatum var. variegatum Variegated clover Annual herb  
Trifolium willdenovii Tomcat clover Annual herb 7
Triodanis biflora Venus looking glass Annual herb  
Triodanis perfoliata Clasping venus looking glass Annual herb 1
Triphysaria eriantha Butter 'n' eggs Annual herb 1
Triphysaria eriantha ssp. eriantha Butter 'n' eggs Annual herb  
Triphysaria eriantha ssp. rosea Pink butter 'n' eggs Annual herb  
Triphysaria pusilla Little owl's clover Annual herb  
Triphysaria versicolor Yellow owl's clover Annual herb 1
Triphysaria versicolor ssp. faucibarbata Yellow owl's clover Annual herb  
Triphysaria versicolor ssp. versicolor Yellow owl's clover Annual herb  
Verbena menthifolia Mint leafed vervain Annual, Perennial herb  
Veronica peregrina Neckweed Annual herb  
Veronica peregrina ssp. xalapensis Speedwell Annual herb  
Vulpia microstachys Fescue Annual grass 6
Vulpia microstachys var. ciliata Eastwood fescue Annual grass  
Vulpia microstachys var. microstachys Small fescue Annual grass  
Vulpia microstachys var. pauciflora Few flowered fescue Annual grass  
Vulpia octoflora Slender fescue Annual grass 5
Vulpia octoflora var. hirtella Six weeks fescue Annual grass 1
Vulpia octoflora var. octoflora Six weeks fescue Annual grass  
Xanthium strumarium Cocklebur Annual herb  
Yabea microcarpa Hedge parsley Annual herb  
Zeltnera davyi Davy's centaury Annual herb 1
Zeltnera exaltata Cancha lagua Annual herb  
Zeltnera muehlenbergii Muehlenberg's centaury Annual herb 2
Zeltnera venusta Charming centaury Annual herb  
  Lifeform: Biennial3 plants
Descurainia incisa ssp. incisa Mountain tansy mustard Biennial herb  
Gnaphalium ramosissimum Pink everlasting Biennial herb 3
Pseudognaphalium ramosissimum Pink cudweed Biennial herb 3
  Lifeform: Perennial1807 plants
Abronia latifolia Yellow sand verbena Perennial herb 3
Abronia umbellata Beach sand verbena Perennial herb 1
Abronia umbellata ssp. breviflora Pink sand verbena Perennial herb  
Abronia umbellata var. breviflora Pink sand-verbena Perennial herb  
Achillea millefolium Yarrow Perennial herb 70
Achlys californica California deer foot Perennial herb  
Achlys triphylla Vanilla leaf Perennial herb 8
Achlys triphylla ssp. triphylla Deer foot Perennial herb 8
Achnatherum lemmonii Lemmon's stipa Perennial grass 1
Achnatherum lemmonii ssp. lemmonii Lemmon's 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 1
Achnatherum occidentale ssp. californicum California needlegrass Perennial grass  
Achnatherum occidentale ssp. occidentale Western needlegrass Perennial grass  
Acmispon glaber Deerweed Perennial herb 22
Acmispon junceus Rush lotus Perennial herb 2
Acmispon junceus var. junceus Rush lotus Perennial herb  
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 ssp. viviparum Columbian monkshood Perennial herb  
Aconitum columbianum var. howellii Howell's monkshood Perennial herb  
Aconogonon davisiae Davis knotweed Perennial herb  
Aconogonon newberryi Newberry's smartweed Perennial herb  
Aconogonon phytolaccifolium Pokeweed knotweed Perennial herb  
Actaea rubra Baneberry Perennial herb 7
Adenocaulon bicolor Trail plant Perennial herb  
Agastache urticifolia Horse mint Perennial herb 6
Ageratina occidentalis Western eupatorium Perennial herb 4
Agoseris apargioides Coast dandelion Perennial herb  
Agoseris apargioides var. apargioides Coast dandelion Perennial herb  
Agoseris apargioides var. eastwoodiae Eastwood's seaside agoseris Perennial herb  
Agoseris apargioides var. maritima Woolly goat chicory Perennial herb  
Agoseris aurantiaca Orange flowered agoseris Perennial herb 1
Agoseris aurantiaca var. aurantiaca Orange agoseris Perennial herb  
Agoseris glauca Short beaked agoseris Perennial herb  
Agoseris grandiflora Giant mountain dandelion Perennial herb 3
Agoseris grandiflora var. grandiflora Giant mountain dandelion Perennial herb  
Agoseris grandiflora var. leptophylla Giant mountain dandelion Perennial herb 3
Agoseris hirsuta Woolly goat chicory Perennial herb  
Agoseris retrorsa Spear leaved agoseris Perennial herb 1
Agrostis densiflora California bent grass Perennial grass  
Agrostis exarata Bentgrass Perennial grass 5
Agrostis hallii Hall's bent grass Perennial grass 2
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 thurberiana Thurber's bentgrass Perennial grass  
Agrostis variabilis Mountain bentgrass Perennial grass  
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 bolanderi Bolander's onion Perennial herb (bulb)  
Allium bolanderi var. bolanderi Bolander's onion Perennial herb (bulb)  
Allium bolanderi var. mirabile Bolander's onion Perennial herb (bulb)  
Allium campanulatum Dusky onion Perennial herb (bulb) 2
Allium cratericola Cascade onion Perennial herb (bulb) 2
Allium falcifolium Sickle leaf onion Perennial herb (bulb) 4
Allium hoffmanii Beegum onion Perennial herb (bulb)  
Allium membranaceum Papery onion Perennial herb (bulb)  
Allium peninsulare Mexicali onion Perennial herb (bulb)  
Allium serra Jeweled onion Perennial herb (bulb) 1
Allium siskiyouense Siskiyou onion Perennial herb (bulb)  
Allium unifolium One leaf onion Perennial herb (bulb) 15
Allium validum Swamp onion Perennial herb (bulb) 5
Allotropa virgata Sugarstick Perennial herb (mycoparasitic)  
Alopecurus aequalis Sonoma alopecurus Perennial grass  
Alopecurus geniculatus Marsh foxtail Perennial grass  
Ambrosia chamissonis Silver beachweed Perennial herb 10
Ambrosia psilostachya Ragweed Perennial herb 7
Anaphalis margaritacea Pearly everlasting Perennial herb 18
Anemone deltoidea Windflower Perennial herb 3
Anemone drummondii Drummond's anemone Perennial herb 2
Anemone grayi Blue windflower Perennial herb  
Anemone oregana Western wood anenome Perennial herb  
Anemone oregana var. oregana Blue windflower Perennial herb  
Angelica arguta Lyall's angelica Perennial herb  
Angelica californica California angelica Perennial herb  
Angelica genuflexa Kneeling angelica Perennial herb 2
Angelica hendersonii Henderson's angelica Perennial herb 11
Angelica lucida Wild celery Perennial herb 1
Angelica tomentosa Woolly angelica Perennial herb 1
Anisocarpus madioides Woodland madia Perennial herb 1
Anisocarpus scabridus Scabrid alpine tarplant Perennial herb  
Antennaria argentea Silvery everlasting Perennial herb  
Antennaria howellii Howell's pussytoes Perennial herb  
Antennaria howellii ssp. howellii Howell's pussytoes Perennial herb  
Antennaria luzuloides Silvery brown pussytoes Perennial herb  
Antennaria media Alpine pussytoes Perennial herb 1
Antennaria microphylla Littleleaf pussytoes Perennial herb 5
Antennaria racemosa Racemose pussytoes Perennial herb  
Antennaria rosea Rosy everlasting Perennial herb 2
Antennaria rosea ssp. rosea Rosy pussytoes Perennial herb  
Antennaria suffrutescens Evergreen pussytoes Perennial herb  
Anthoxanthum occidentale California sweet grass Perennial grass 6
Aphyllon californicum California orobanche Perennial herb (parasitic)  
Aphyllon californicum ssp. californicum Broomrape Perennial herb (parasitic)  
Aphyllon californicum ssp. grayanum Gray's california broom rape Perennial herb (parasitic)  
Aphyllon fasciculatum Clustered broomrape Perennial herb (parasitic)  
Aphyllon pinorum Pinewoods broom rape Perennial herb (parasitic)  
Apocynum androsaemifolium Spreading dogbane Perennial herb 1
Apocynum cannabinum Indian hemp Perennial herb 11
Aquilegia eximia Van Houtte's columbine Perennial herb 6
Aquilegia formosa Columbine Perennial herb 54
Arabis Xdivaricarpa Hybrid drummond's rock cress Perennial herb  
Arabis breweri Brewer's rock cress Perennial herb 1
Arabis breweri var. breweri Brewer's rock cress Perennial herb  
Arabis eschscholtziana Eschscholtz's hairy rockcress 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 hirsuta Hairy rock cress Perennial herb 1
Arabis hirsuta var. glabrata Mountain rock cress Perennial herb  
Arabis holboellii Holboell's rock cress Perennial herb  
Arabis holboellii var. retrofracta Backward splitting holboell's rock cress Perennial herb  
Arabis lyallii Lyall's rock cress Perennial herb 1
Arabis platysperma Broad seeded rock cress Perennial herb  
Arabis pycnocarpa Creamflower rockcress Perennial herb 1
Arabis sparsiflora Sicklepod rock cress Perennial herb 2
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  
Aralia californica California spikenard Perennial herb 18
Arceuthobium abietinum Fir 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 congesta Capitate sandwort Perennial herb 1
Arenaria congesta var. congesta Capitate sandwort Perennial herb  
Arenaria congesta var. subcongesta Capitate sandwort Perennial herb  
Arenaria congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Armeria maritima Thrift seapink Perennial herb 34
Armeria maritima ssp. californica Sea thrift Perennial herb 7
Arnica Xdiversifolia Rayless arnica Perennial herb  
Arnica amplexicaulis Streambank arnica Perennial herb 3
Arnica cernua Serpentine arnica Perennial herb (rhizomatous)  
Arnica cordifolia Heart leaved arnica Perennial herb 1
Arnica discoidea Rayless arnica Perennial herb  
Arnica diversifolia Lawless arnica Perennial herb  
Arnica lanceolata ssp. prima Clasping arnica Perennial herb 3
Arnica latifolia Mountain arnica Perennial herb  
Arnica ovata Sticky leaf arnica Perennial herb  
Arnica parryi Nodding arnica Perennial herb  
Arnica spathulata Klamath arnica Perennial herb (rhizomatous)  
Artemisia douglasiana California mugwort Perennial herb 35
Artemisia dracunculus Tarragon Perennial herb 11
Artemisia ludoviciana Silver wormwood Perennial herb 17
Artemisia ludoviciana ssp. ludoviciana Silver wormwood Perennial herb 3
Artemisia pycnocephala Beach sagewort Perennial herb 28
Artemisia suksdorfii Coastal mugwort Perennial herb 2
Aruncus dioicus Bride's feathers Perennial herb 11
Aruncus dioicus var. acuminatus Bride's feathers Perennial herb 1
Aruncus dioicus var. pubescens Goats beard Perennial herb  
Asarum caudatum Creeping wild ginger Perennial herb 41
Asarum hartwegii Hartweg's wild ginger Perennial herb 4
Asclepias cordifolia Purple milkweed Perennial herb 8
Asclepias eriocarpa Indian milkweed Perennial herb 9
Asclepias fascicularis narrow leaf milkweed Perennial herb 31
Asclepias speciosa Showy milkweed Perennial herb 39
Aster alpigenus var. andersonii Alpine aster Perennial herb 1
Aster breweri Brewer's aster Perennial herb  
Aster brickellioides Rayless leafy aster Perennial herb  
Aster chilensis California aster Perennial herb 40
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. lyallii Lyall's leafy aster Perennial herb  
Aster foliaceus var. parryi Parry's aster Perennial herb 1
Aster ledophyllus Cascade aster Perennial herb  
Aster lentus Suisun marsh aster Perennial herb (rhizomatous) 2
Aster occidentalis Western mountain aster Perennial herb 1
Aster occidentalis var. occidentalis Western mountain aster Perennial herb  
Aster oregonensis Oregon aster Perennial herb  
Aster radulinus Rough leaved aster Perennial herb 3
Astragalus agnicidus Humboldt milk vetch Perennial herb  
Astragalus purshii Pursh's sheeppod Perennial herb 3
Astragalus purshii var. lectulus Pursh's milk vetch Perennial herb  
Astragalus pycnostachyus Marsh milk vetch Perennial herb 1
Astragalus pycnostachyus var. pycnostachyus Marsh milk vetch Perennial herb  
Astragalus rattanii var. rattanii Rattan's milk vetch Perennial herb  
Astragalus umbraticus Santa barbara milk vetch Perennial herb  
Asyneuma prenanthoides California harebell Perennial herb 2
Atriplex leucophylla Sea scale Perennial herb 8
Baccharis douglasii Salt marsh baccharis Perennial herb 14
Baccharis glutinosa Salt Marsh baccharis Perennial herb 27
Balsamorhiza deltoidea Deltoid balsam root Perennial herb 2
Barbarea orthoceras Winter cress Perennial herb 1
Bensoniella oregona Bensoniella Perennial herb  
Berula erecta Cut leaved water parsnip Perennial herb 1
Bistorta bistortoides American bistort Perennial herb  
Boechera acutina Pointed rockcress Perennial herb  
Boechera breweri Brewer's rock cress Perennial herb 1
Boechera breweri ssp. breweri Brewer's rockcress Perennial herb  
Boechera divaricarpa Spreadingpod rockcress Perennial herb  
Boechera lyallii Lyall's rockcress Perennial herb 1
Boechera pauciflora Hairy stem rockcress Perennial herb  
Boechera platysperma Pioneer rockcress Perennial herb  
Boechera retrofracta Reflexed rockcress Perennial herb  
Boechera sparsiflora Sicklepod rockcress Perennial herb 2
Boechera subpinnatifida Klamath rockcress Perennial herb  
Bolboschoenus maritimus Alkali bulrush Perennial grass 16
Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush Perennial grass 16
Bolboschoenus robustus Sturdy bullrush Perennial grass 10
Boschniakia hookeri Small groundcone Perennial herb (parasitic)  
Boschniakia strobilacea Ground cone Perennial herb (parasitic)  
Boykinia major Large boykinia Perennial herb 5
Boykinia occidentalis Western boykinia Perennial herb 6
Brickellia californica California brickellia Perennial herb 15
Brickellia greenei Greene's brickelbush Perennial herb  
Brodiaea coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea elegans Harvest brodiaea Perennial herb 6
Brodiaea elegans ssp. elegans Harvest brodiaea Perennial herb 1
Brodiaea stellaris Star flowered brodiaea Perennial herb 1
Brodiaea terrestris Dwarf brodiaea Perennial herb 1
Brodiaea terrestris ssp. terrestris Dwarf brodiaea Perennial herb  
Bromus carinatus California bromegrass Perennial grass 19
Bromus carinatus var. carinatus California brome Perennial grass 19
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 laevipes Narrow flowered brome Perennial grass 3
Bromus marginatus Mountain brome Perennial grass 6
Bromus maritimus Maritime brome Perennial grass 1
Bromus richardsonii Fringed brome Perennial grass  
Bromus sitchensis Sitka brome Perennial grass 2
Bromus sitchensis var. carinatus California brome Perennial grass 19
Bromus sitchensis var. marginatus Mountain brome Perennial grass 6
Bromus sitchensis var. maritimus Maritime brome Perennial grass 1
Bromus sitchensis var. sitchensis Sitka brome, alaska brome Perennial grass  
Bromus suksdorfii Suksdorf's bromegrass Perennial grass 1
Cacaliopsis nardosmia Cut leaf cacaliopsis Perennial herb  
Calamagrostis bolanderi Bolander's reedgrass Perennial grass (rhizomatous) 1
Calamagrostis breweri Short hair reedgrass Perennial grass 1
Calamagrostis canadensis Canada reedgrass Perennial grass 5
Calamagrostis crassiglumis Thurber's reed grass Perennial grass (rhizomatous) 1
Calamagrostis foliosa Leafy reed grass Perennial grass 20
Calamagrostis koelerioides Fire reedgrass Perennial grass  
Calamagrostis nutkaensis Reedgrass Perennial grass 22
Calamagrostis ophitidis Serpentine reed grass Perennial grass 1
Calamagrostis rubescens Pinegrass Perennial grass 1
Calamagrostis stricta Narrow hairgrass Perennial grass (rhizomatous) 2
Calamagrostis stricta ssp. inexpansa Thurber's reed grass Perennial grass (rhizomatous) 1
Calliscirpus criniger Cotton grass Perennial grass  
Callitriche heterophylla Water starwort Perennial herb  
Calochortus amabilis Golden fairy lantern Perennial herb 3
Calochortus coeruleus Blue star tulip Perennial herb 1
Calochortus elegans Elegant star tulip Perennial herb  
Calochortus luteus Yellow mariposa Perennial herb 5
Calochortus tolmiei Hairy star tulip Perennial herb 5
Calochortus vestae Coast range mariposa lily Perennial herb 2
Caltha leptosepala White marsh marigold Perennial herb 3
Caltha leptosepala ssp. howellii Howell's marsh marigold Perennial herb 3
Caltha leptosepala var. biflora Marsh marigold Perennial herb 3
Calypso bulbosa Fairy slipper Perennial herb 1
Calypso bulbosa var. occidentalis Fairy slipper Perennial herb  
Calyptridium monospermum One seeded pussypaws Perennial herb  
Calystegia atriplicifolia Nightblooming false bindweed Perennial herb (rhizomatous)  
Calystegia atriplicifolia ssp. buttensis Butte county morning glory Perennial herb (rhizomatous)  
Calystegia occidentalis Bush morning glory Perennial herb 2
Calystegia occidentalis ssp. occidentalis Modoc morning glory Perennial herb  
Calystegia purpurata Smooth western morning glory Perennial herb 4
Calystegia purpurata ssp. purpurata Smooth western morning glory Perennial herb 1
Calystegia soldanella Beach morning glory Perennial herb 3
Camassia leichtlinii Large camas Perennial herb 11
Camassia leichtlinii ssp. suksdorfii Suksdorf's large camas Perennial herb 3
Camassia quamash Camas Perennial herb 13
Camassia quamash ssp. breviflora Small camas Perennial herb 1
Camassia quamash ssp. quamash Common camas Perennial herb 3
Camissonia cheiranthifolia Beach evening primrose Perennial herb 11
Camissonia cheiranthifolia ssp. cheiranthifolia Beach evening primrose Perennial herb 2
Camissonia ovata Sun cup Perennial herb 2
Camissoniopsis cheiranthifolia Beach evening-primrose Perennial herb 11
Campanula prenanthoides Nodding harebell Perennial herb 2
Campanula scouleri Scouler's harebell Perennial herb  
Cardamine angulata Seaside bitter cress Perennial herb  
Cardamine breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. breweri Brewer's bitter cress Perennial herb  
Cardamine californica milkmaids Perennial herb  
Cardamine californica var. californica Milk maids Perennial herb  
Cardamine californica var. cardiophylla Milk maids Perennial herb  
Cardamine californica var. integrifolia California toothwort Perennial herb  
Cardamine californica var. sinuata Milk maids Perennial herb  
Cardamine nuttallii Nuttall's toothwort Perennial herb  
Cardamine nuttallii var. covilleana Coville's toothwort Perennial herb  
Cardamine nuttallii var. nuttallii Nuttall's toothwort Perennial herb  
Cardamine pachystigma Rock toothwort Perennial herb  
Cardamine pachystigma var. pachystigma Rock toothwort Perennial herb  
Cardionema ramosissimum Sand mat Perennial herb 2
Carex abrupta Abrupt beaked sedge Perennial grass  
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. dives Sitka sedge Perennial grass 3
Carex arcta Bear sedge Perennial grass 1
Carex athrostachya Slender leaved sedge Perennial grass 3
Carex barbarae Valley sedge Perennial grass 24
Carex bolanderi Bolander's sedge Perennial grass  
Carex brainerdii Brainerd's sedge Perennial grass  
Carex brevicaulis Short stem sedge Perennial grass  
Carex buxbaumii Buxbaum's sedge Perennial grass  
Carex canescens Hoary sedge Perennial grass  
Carex concinnoides Northwestern sedge Perennial grass  
Carex cusickii Cusick's sedge Perennial grass 2
Carex densa Sedge Perennial grass 8
Carex deweyana Dewey sedge Perennial grass 5
Carex deweyana ssp. leptopoda Dewey's taper fruit sedge Perennial grass 3
Carex diandra Lesser panicled sedge Perennial grass 1
Carex dudleyi Dudley's sedge Perennial grass 8
Carex echinata Bristle fruit sedge Perennial grass 1
Carex echinata ssp. echinata Bristle fruit sedge Perennial grass  
Carex echinata ssp. phyllomanica Star sedge Perennial grass  
Carex exsiccata Western inflated sedge Perennial grass 2
Carex feta Green sheathed sedge Perennial grass  
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 globosa Round fruit sedge Perennial grass 5
Carex gracilior Slender sedge Perennial grass  
Carex gynodynama Olney's hairy sedge Perennial grass 1
Carex harfordii Monterey sedge Perennial grass 3
Carex hassei Hasse's sedge Perennial grass  
Carex hendersonii Henderson's sedge Perennial grass  
Carex hirtissima Fuzzy sedge Perennial grass  
Carex hoodii Hood's sedge Perennial grass  
Carex integra Smooth beak sedge Perennial grass  
Carex interior Inland sedge Perennial grass 1
Carex jonesii Jones' sedge Perennial grass  
Carex laeviculmis Smooth stem sedge Perennial grass 1
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 leporina Hare or oval sedge Perennial grass 1
Carex leptalea Flaccid sedge Perennial grass (rhizomatous)  
Carex leptopoda Slender-footed sedge Perennial grass 5
Carex luzulina Wood rush sedge Perennial grass  
Carex luzulina var. ablata American cold loving sedge Perennial grass  
Carex luzulina var. luzulina Wood rush sedge Perennial grass  
Carex lyngbyei Lyngbye's sedge Perennial grass 4
Carex mariposana Mariposa sedge Perennial grass  
Carex mendocinensis Mendocino sedge Perennial grass  
Carex mertensii Mertens' sedge Perennial grass 3
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 neurophora Alpine nerve sedge Perennial grass  
Carex nudata Torrent sedge Perennial grass 13
Carex obnupta Slough sedge Perennial grass 18
Carex ovalis Egg sedge Perennial grass 1
Carex pachycarpa Furrowed broomsedge Perennial grass  
Carex pachystachya Thick headed sedge Perennial grass 2
Carex pansa Sand dune sedge Perennial grass 28
Carex pellita Woolly sedge Perennial grass 7
Carex praegracilis Field sedge Perennial grass 28
Carex praticola Meadow sedge Perennial grass  
Carex preslii Presl's sedge Perennial grass 1
Carex rossii Ross' sedge Perennial grass 1
Carex saliniformis Salt sedge Perennial grass  
Carex scabriuscula Siskiyou sedge Perennial grass (rhizomatous)  
Carex scopulorum Mountain sedge Perennial grass  
Carex scopulorum var. bracteosa Bracted sedge Perennial grass  
Carex serratodens Bifid sedge Perennial grass 2
Carex simulata Short beaked sedge Perennial grass 2
Carex spectabilis Showy sedge Perennial grass 2
Carex stipata Awlfruit sedge Perennial grass 5
Carex stipata var. stipata Awl fruited sedge Perennial grass  
Carex straminiformis Straw like sedge Perennial grass  
Carex subbracteata Small bract sedge Perennial grass 3
Carex subfusca Brown sedge Perennial grass 8
Carex tumulicola Split awn sedge Perennial grass 26
Carex unilateralis Lateral sedge Perennial grass 2
Carex utriculata Beaked sedge Perennial grass 7
Carex vesicaria Blister sedge Perennial grass 3
Carex vesicaria var. major Western blister sedge Perennial grass 2
Carex viridula Little green sedge Perennial grass 1
Carex viridula ssp. viridula Little green sedge Perennial grass  
Carex viridula var. viridula Green sedge Perennial grass  
Castilleja affinis Indian paintbrush Perennial herb 1
Castilleja affinis ssp. affinis Coast indian paintbrush Perennial herb 1
Castilleja affinis ssp. litoralis Seashore indian paintbrush Perennial herb  
Castilleja applegatei Wavy leaf paintbrush Perennial herb 2
Castilleja applegatei ssp. martinii Martin's paintbrush Perennial herb 1
Castilleja applegatei ssp. pinetorum Pine wavy leaf paintbrush Perennial herb  
Castilleja arachnoidea Cobwebby paintbrush Perennial herb  
Castilleja foliolosa Texas paintbrush Perennial herb 3
Castilleja inflata Indian paintbrush Perennial herb  
Castilleja litoralis Oregon coast paintbrush Perennial herb  
Castilleja mendocinensis Mendocino coast indian paintbrush Perennial herb (hemiparasitic)  
Castilleja miniata Great red paintbrush Perennial herb 6
Castilleja miniata ssp. elata Siskiyou indian paintbrush Perennial herb (hemiparasitic)  
Castilleja miniata ssp. miniata Scarlet indian paintbrush Perennial herb  
Castilleja pruinosa Frosted paintbrush Perennial herb (hemiparasitic)  
Castilleja subinclusa ssp. franciscana Franciscan paintbrush Perennial herb  
Castilleja wightii Wight's paintbrush Perennial herb 1
Cephalanthera austiniae Phantom orchid Perennial herb  
Cerastium arvense Meadow chickweed Perennial herb 1
Cerastium arvense ssp. strictum Field chickweed Perennial herb  
Cerastium viride Field chickweed Perennial herb  
Ceratophyllum demersum Hornwort Perennial herb 1
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  
Chlorogalum pomeridianum Amole Perennial herb 18
Chlorogalum pomeridianum var. pomeridianum Common soaproot Perennial herb 2
Chrysosplenium glechomifolium Pacific golden saxifrage Perennial herb  
Cicuta douglasii Western water hemlock Perennial herb 1
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 brevistylum Indian 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 douglasii var. douglasii Douglas' swamp 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. venustum Venus thistle Perennial herb  
Cirsium remotifolium Few leaved thistle Perennial herb  
Cirsium remotifolium var. odontolepis Pacific fringed thistle Perennial herb  
Cirsium remotifolium var. rivulare Klamath thistle Perennial herb  
Claytonia cordifolia Heart leaf spring beauty Perennial herb  
Claytonia lanceolata Western spring beauty Perennial herb  
Claytonia sibirica Candy flower Perennial herb 7
Clematis lasiantha Pipestem Perennial herb, Vine 27
Clematis ligusticifolia Creek clematis Perennial herb, Vine 32
Clinopodium douglasii Yerba buena Perennial herb 35
Clintonia andrewsiana Red clintonia Perennial herb 4
Clintonia uniflora Bride's bonnet Perennial herb 1
Comandra umbellata Bastard toadflax Perennial herb (parasitic)  
Comandra umbellata ssp. californica Bastard toadflax Perennial herb (parasitic)  
Comarum palustre Marsh cinquefoil Perennial herb 5
Coptis laciniata Oregon golden thread Perennial herb  
Corallorhiza maculata Summer coral root Perennial herb  
Corallorhiza maculata var. maculata Summer coralroot Perennial herb  
Corallorhiza maculata var. occidentalis Summer coralroot Perennial herb  
Corallorhiza mertensiana Merten's coral root Perennial herb  
Corallorhiza striata Striped coral root Perennial herb  
Corethrogyne filaginifolia Common sandaster Perennial herb 9
Corethrogyne filaginifolia var. californica California sandaster Perennial herb 3
Corethrogyne filaginifolia var. filaginifolia Common sandaster Perennial herb 12
Cornus canadensis Bunch berry Perennial herb 9
Crepis acuminata Tall hawksbeard Perennial herb  
Crepis monticola Mountain hawk's beard Perennial herb  
Crepis occidentalis Western hawk's beard Perennial herb  
Crepis occidentalis ssp. occidentalis Largeflower hawksbeard Perennial herb  
Crepis pleurocarpa Naked stemmed hawksbeard Perennial herb  
Cycladenia humilis Cycladenia Perennial herb 1
Cymopterus terebinthinus Turpentine cymopterus Perennial herb  
Cymopterus terebinthinus var. californicus Turpentine cymopterus Perennial herb  
Cynoglossum grande Houndstongue Perennial herb 5
Cynoglossum occidentale Hound's tongue Perennial herb  
Cyperus eragrostis Tall cyperus Perennial grass 13
Cyperus esculentus Nut grass Perennial grass  
Cyperus niger Brown cyperus Perennial grass  
Cyperus parishii Parish's flatsedge Perennial grass  
Cyperus strigosus Straw colored cyperus Perennial grass 1
Cypripedium californicum California lady's slipper Perennial herb (rhizomatous)  
Cypripedium fasciculatum Clustered lady's slipper Perennial herb (rhizomatous)  
Cypripedium montanum Mountain lady's slipper Perennial herb (rhizomatous)  
Danthonia californica California oatgrass Perennial grass 21
Danthonia californica var. americana American oatgrass Perennial grass 21
Danthonia californica var. californica California oatgrass Perennial grass 21
Danthonia intermedia Timber oatgrass Perennial grass 2
Danthonia intermedia ssp. intermedia Intermediate oat grass Perennial grass  
Danthonia unispicata One spiked oatgrass Perennial grass  
Darlingtonia californica California pitcherplant Perennial herb (carnivorous) 2
Darmera peltata Umbrella plant Perennial herb 14
Datisca glomerata Durango root Perennial herb 2
Delphinium andersonii Anderson larkspur Perennial herb 4
Delphinium decorum Larkspur Perennial herb  
Delphinium decorum ssp. decorum Coastal larkspur Perennial herb  
Delphinium decorum ssp. tracyi Tracy's larkspur Perennial herb  
Delphinium depauperatum Few flowered larkspur Perennial herb  
Delphinium glaucum Sierra larkspur Perennial herb 3
Delphinium hesperium Western larkspur Perennial herb 1
Delphinium hesperium ssp. hesperium Western larkspur Perennial herb  
Delphinium hesperium ssp. pallescens Western larkspur Perennial herb 1
Delphinium nudicaule Canyon larkspur Perennial herb 3
Delphinium nuttallianum Nuttall's larkspur Perennial herb 2
Delphinium patens Spreading larkspur Perennial herb  
Delphinium polycladon Mountain marsh larkspur Perennial herb  
Delphinium trolliifolium Cow poison Perennial herb 3
Deschampsia cespitosa Tufted hair grass Perennial grass 49
Deschampsia cespitosa ssp. beringensis Tufted hair grass Perennial grass  
Deschampsia cespitosa ssp. cespitosa Tufted hairgrass Perennial grass 24
Deschampsia cespitosa ssp. holciformis Coastal tufted hair grass Perennial grass 8
Deschampsia elongata Hairgrass Perennial grass 17
Descurainia incana Mountain tansy mustard Perennial herb  
Dicentra formosa Pacific bleedinghearts Perennial herb 25
Dicentra formosa ssp. formosa Bleeding heart Perennial herb 2
Dicentra formosa ssp. oregana Oregon bleeding heart Perennial herb  
Dicentra pauciflora Few flowered bleeding heart Perennial herb  
Dicentra uniflora Steers head Perennial herb  
Dichelostemma Xvenustum Rose firecracker flower Perennial herb  
Dichelostemma capitatum Blue dicks Perennial herb 15
Dichelostemma capitatum ssp. capitatum Wild hyacinth Perennial herb 2
Dichelostemma capitatum ssp. pauciflorum Few flowered blue dicks Perennial herb  
Dichelostemma congestum Fork toothed ookow Perennial herb 7
Dichelostemma ida-maia Firecracker flower Perennial herb 7
Dichelostemma multiflorum Many flowered brodiaea Perennial herb 6
Dichondra donelliana Dichondra Perennial herb, Vine 5
Dipterostemon capitatus Blue dicks Perennial herb 15
Dipterostemon capitatus ssp. capitatus Perennial herb 2
Disporum hookeri Fairy bells Perennial herb 11
Disporum smithii Fairy lantern Perennial herb 6
Distichlis spicata Salt grass Perennial grass 25
Dodecatheon alpinum Alpine shooting star Perennial herb 1
Dodecatheon clevelandii Padre's shooting star Perennial herb 8
Dodecatheon hendersonii Shooting star Perennial herb 11
Dodecatheon jeffreyi Jeffrey's shooting star Perennial herb 3
Doellingeria breweri Perennial herb  
Doellingeria engelmannii Perennial herb 2
Doellingeria glabrata Siskiyou aster Perennial herb  
Doellingeria tomentella Brickellbush aster Perennial herb  
Draba howellii Howell's draba Perennial herb  
Draperia systyla Violet draperia Perennial herb  
Drosera rotundifolia Round leaved sundew Perennial herb 1
Drymocallis glandulosa Sticky cinquefoil Perennial herb 11
Drymocallis glandulosa var. glandulosa Sticky cinquefoil Perennial herb  
Drymocallis glandulosa var. reflexa Sticky cinquefoil Perennial herb  
Drymocallis glandulosa var. wrangelliana Sticky cinquefoil Perennial herb  
Drymocallis hansenii Yosemite woodbeauty Perennial herb  
Drymocallis lactea Perennial herb 1
Drymocallis lactea var. austiniae Austin's woodbeauty Perennial herb  
Drymocallis lactea var. lactea Sierran woodbeauty Perennial herb  
Drymocallis rhomboidea Common cinquefoil Perennial herb  
Dudleya caespitosa Sand lettuce Perennial herb 10
Dudleya cymosa Rock lettuce Perennial herb 19
Dudleya farinosa Sea lettuce Perennial herb 16
Dulichium arundinaceum Three way sedge Perennial grass 1
Dulichium arundinaceum var. arundinaceum Three-way sedge Perennial grass  
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 macrostachya Spike rush Perennial grass 19
Eleocharis ovata Ovate spikerush Perennial grass 3
Eleocharis palustris Common spikerush Perennial grass 8
Eleocharis parvula Small spikerush Perennial grass 2
Eleocharis pauciflora Few flowered spike rush Perennial grass  
Eleocharis quinqueflora Fewflower spikerush Perennial grass  
Eleocharis rostellata Walking sedge Perennial grass 1
Eleocharis suksdorfiana Suksdorf's spikerush Perennial grass  
Elodea canadensis Common water weed Perennial herb  
Elymus Xhansenii Perennial grass  
Elymus Xvancouverensis Vancouver wild rye Perennial grass  
Elymus elymoides Squirrel tail grass Perennial grass 14
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 32
Elymus glaucus ssp. glaucus Blue wild rye Perennial grass 1
Elymus glaucus ssp. jepsonii Western rye grass Perennial grass 1
Elymus glaucus ssp. virescens Virginia wildrye Perennial grass  
Elymus lanceolatus Thickspike wheatgrass Perennial grass 3
Elymus lanceolatus ssp. lanceolatus Northern wheatgrass Perennial grass 4
Elymus mollis American dune grass Perennial grass 5
Elymus mollis ssp. mollis American dune grass, sea lyme grass Perennial grass 4
Elymus multisetus Big squirreltail grass Perennial grass 12
Elymus spicatus Blue bunch wheat grass Perennial grass 7
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
Enemion stipitatum Siskiyou false rue anemone Perennial herb  
Epilobium angustifolium ssp. angustifolium Fireweed Perennial herb 2
Epilobium angustifolium ssp. circumvagum Fireweed Perennial herb 1
Epilobium canum California fuchsia Perennial herb 49
Epilobium canum ssp. canum California fuchsia Perennial herb 11
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 ciliatum ssp. watsonii Willow herb Perennial herb  
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 lactiflorum White flowered willowherb Perennial herb  
Epilobium oreganum Oregon fireweed Perennial herb  
Epilobium oregonense Slimstem willowweed Perennial herb  
Epilobium septentrionale Humboldt county fuchsia Perennial herb 9
Epipactis gigantea Stream orchid Perennial herb 16
Eremogone congesta Capitate sandwort Perennial herb  
Eremogone congesta var. congesta Capitate sandwort Perennial herb  
Eremogone congesta var. subcongesta Capitate sandwort Perennial herb  
Eremogone congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Erigeron aliceae Alice eastwood's fleabane Perennial herb  
Erigeron biolettii Streamside daisy Perennial herb  
Erigeron bloomeri Scabland fleabane Perennial herb  
Erigeron bloomeri var. nudatus Waldo daisy Perennial herb  
Erigeron breweri var. klamathensis Klamath fleabane Perennial herb  
Erigeron decumbens var. robustior Robust daisy Perennial herb  
Erigeron foliosus Leafy daisy Perennial herb  
Erigeron foliosus var. confinis Leafy fleabane Perennial herb  
Erigeron foliosus var. foliosus Thread stemmed fleabane Perennial herb, Shrub  
Erigeron foliosus var. hartwegii Hartweg's fleabane Perennial herb  
Erigeron foliosus var. mendocinus Mendocino fleabane Perennial herb  
Erigeron glacialis Wandering fleabane Perennial herb 3
Erigeron glacialis var. glacialis Wandering fleabane Perennial herb  
Erigeron glaucus Seaside daisy Perennial herb 40
Erigeron inornatus Rayless fleabane Perennial herb  
Erigeron inornatus var. inornatus Fleabane Perennial herb  
Erigeron klamathensis Klamath fleabane Perennial herb  
Erigeron maniopotamicus Mad river fleabane daisy Perennial herb  
Erigeron peregrinus Wandering fleabane Perennial herb 3
Erigeron peregrinus var. callianthemus Wandering fleabane Perennial herb  
Erigeron philadelphicus Philadelphia fleabane Perennial herb  
Erigeron philadelphicus var. philadelphicus Philadelphia fleabane Perennial herb  
Erigeron reductus Fleabane Perennial herb  
Erigeron reductus var. reductus California rayless daisy Perennial herb  
Erigeron robustior Willamette fleabane Perennial herb  
Erigeron supplex Supple daisy Perennial herb  
Eriodictyon lobbii Matted yerba santa Perennial herb 1
Eriogonum compositum Arrowleaf buckwheat Perennial herb 3
Eriogonum compositum var. compositum Arrow leaf buckwheat Perennial herb  
Eriogonum latifolium Coast buckwheat Perennial herb 21
Eriogonum lobbii Lobb's buckwheat Perennial herb  
Eriogonum oblongifolium Coast buckwheat Perennial herb 21
Eriogonum strictum Blue mountain buckwheat Perennial herb 1
Eriogonum strictum var. greenei Greene's buckwheat Perennial herb  
Eriogonum strictum var. proliferum Blue mountain buckwheat Perennial herb 1
Eriogonum umbellatum Sulphur buckwheat Perennial herb 26
Eriogonum umbellatum var. argus Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. dumosum Many flowered sulfur flower Perennial herb 3
Eriogonum umbellatum var. goodmanii Serpentine sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. modocense Sulphur flower buckwheat Perennial herb 2
Eriogonum umbellatum var. nelsoniorum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. polyanthum Many flowered sulfur flower Perennial herb 6
Eriogonum umbellatum var. speciosum Showy sulfur buckwheat Perennial herb  
Eriogonum wrightii Wright's buckwheat Perennial herb, Shrub 6
Eriogonum wrightii var. subscaposum Wright's buckwheat Perennial herb, Shrub 3
Eriophorum crinigerum Fringed cottongrass 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. aphanactis Woolly sunflower Perennial herb  
Eriophyllum lanatum var. arachnoideum Wooly sunflower Perennial herb 4
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  
Eriophyllum lanatum var. lanceolatum Lance leaved woolly sunflower Perennial herb  
Eriophyllum staechadifolium Lizard tail Perennial herb 17
Eryngium aristulatum Jepson's button celery Perennial herb 2
Eryngium aristulatum var. aristulatum Jepson's button celery Perennial herb  
Eryngium jepsonii Perennial herb  
Erysimum capitatum Wallflower Perennial herb 10
Erysimum capitatum var. angustatum Contra costa wallflower Perennial herb 1
Erysimum capitatum var. bealianum Western wallflower Perennial herb 1
Erysimum capitatum var. capitatum Sanddune wallflower Perennial herb 1
Erysimum capitatum var. lompocense San luis obispo wallflower Perennial herb 1
Erysimum capitatum var. perenne Sanddune wallflower Perennial herb  
Erysimum concinnum Headland wallflower Perennial herb 10
Erysimum menziesii Menzies' wallflower Perennial herb 7
Erysimum menziesii ssp. concinnum Headland wallflower Perennial herb 10
Erysimum menziesii ssp. eurekense Humboldt bay wallflower Perennial herb 6
Erysimum perenne Sanddune wallflower Perennial herb  
Erythranthe cardinalis Cardinal monkey flower Perennial herb 40
Erythranthe dentata Tooth leaved monkeyflower Perennial herb 1
Erythranthe linearifolia Primrose monkeyflower Perennial herb 3
Erythranthe moschata Musk monkeyflower Perennial herb 1
Erythranthe nasuta Perennial herb  
Erythranthe primuloides Primrose monkeyflower Perennial herb  
Erythronium californicum California fawn lily Perennial herb (bulb) 1
Erythronium citrinum Lemon colored fawn lily Perennial herb (bulb) 1
Erythronium citrinum var. citrinum Lemon colored fawn lily Perennial herb (bulb)  
Erythronium grandiflorum Glacier lily Perennial herb (bulb) 5
Erythronium grandiflorum ssp. grandiflorum Glacier lily Perennial herb (bulb) 1
Erythronium grandiflorum var. pallidum California glacier lily Perennial herb (bulb)  
Erythronium howellii Howell's fawn lily Perennial herb (bulb)  
Erythronium oregonum Oregon fawn lily Perennial herb (bulb) 8
Erythronium purpurascens Purple fawn lily Perennial herb (bulb) 2
Erythronium revolutum Mahogany fawn lily Perennial herb (bulb) 5
Eschscholzia californica ssp. californica California poppy Perennial herb 3
Eschscholzia procera Kernville poppy Perennial herb 3
Eucephalus breweri Brewer's aster Perennial herb  
Eucephalus engelmannii Engelmann's aster Perennial herb 1
Eucephalus glabratus Smooth aster Perennial herb  
Eucephalus ledophyllus Cascade aster Perennial herb  
Eucephalus tomentellus Rayless aster Perennial herb  
Eucephalus vialis Wayside aster Perennial herb  
Eurybia radulina Roughleaf aster Perennial herb 3
Euthamia occidentalis Western goldenrod Perennial herb 15
Festuca californica California fescue Perennial grass 48
Festuca californica ssp. californica Perennial grass 6
Festuca elmeri Coast fescue Perennial grass  
Festuca idahoensis Blue fescue Perennial grass 53
Festuca occidentalis Western fescue Perennial grass 8
Festuca roemeri var. klamathensis Idaho fescue Perennial grass 48
Festuca rubra Red fescue Perennial grass 39
Festuca rubra ssp. pruinosa Red fescue Perennial grass  
Festuca rubra ssp. rubra Red fescue Perennial grass 3
Festuca subulata Bearded fescue Perennial grass  
Festuca subuliflora Coast range fescue Perennial grass  
Festuca viridula Mountain bunch fescue Perennial grass  
Fragaria Xananassa ssp. cuneifolia Perennial herb  
Fragaria chiloensis Beach strawberry Perennial herb 35
Fragaria crinita Beach strawberry Perennial herb 35
Fragaria vesca Wild strawberry Perennial herb 36
Fragaria vesca ssp. bracteata Woodland strawberry Perennial herb 35
Fragaria virginiana Mountain strawberry Perennial herb 12
Frasera albicaulis Whitestem frasera Perennial herb  
Frasera albicaulis var. nitida Whitestem frasera Perennial herb  
Frasera speciosa Monument plant Perennial herb  
Frasera umpquaensis Umpqua green-gentian Perennial herb  
Fritillaria affinis Checker lily Perennial herb (bulb) 7
Fritillaria affinis var. affinis Checker lily Perennial herb (bulb) 4
Fritillaria atropurpurea Spotted mountain bells Perennial herb 2
Fritillaria glauca Siskiyou missionbells Perennial herb 1
Fritillaria lanceolata var. tristulis Marin checker lily Perennial herb 4
Fritillaria purdyi Purdy's fritillary Perennial herb (bulb) 1
Fritillaria recurva Scarlet fritillary Perennial herb 1
Galium ambiguum Yolla bolly bedstraw Perennial herb  
Galium ambiguum ssp. ambiguum Yolla bolly bedstraw Perennial herb  
Galium ambiguum ssp. siskiyouense Siskiyou bedstraw Perennial herb  
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 californicum California bedstraw Perennial herb  
Galium californicum ssp. californicum California bedstraw Perennial herb  
Galium grayanum Gray's bedstraw Perennial herb  
Galium grayanum var. grayanum Gray's bedstraw Perennial herb  
Galium grayanum var. nanum Gray's bedstraw Perennial herb  
Galium mexicanum var. asperulum Mexican bedstraw Perennial herb  
Galium multiflorum Many flowered bedstraw Perennial herb  
Galium muricatum Humboldt bedstraw Perennial herb  
Galium nuttallii Climbing 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  
Gamochaeta ustulata Featherweed Perennial herb 1
Gentiana affinis Pleated gentian Perennial herb 1
Gentiana affinis var. ovata Gentian Perennial herb 1
Gentiana affinis var. parvidentata Small toothed prairie gentian Perennial herb 1
Gentiana calycosa Rainier pleated gentian Perennial herb  
Gentiana plurisetosa Klamath gentian Perennial herb 1
Gentiana sceptrum King's scepter gentian Perennial herb 2
Gentiana setigera Mendocino gentian Perennial herb 1
Geranium oreganum Oregon geranium Perennial herb 2
Geum macrophyllum Large leaved avens Perennial herb 8
Geum macrophyllum var. macrophyllum Largeleaf avens Perennial herb 1
Glaux maritima Sea milk wort Perennial herb  
Glehnia littoralis American silvertop Perennial herb 1
Glehnia littoralis ssp. leiocarpa American glehnia Perennial herb  
Glyceria borealis Northern mannagrass Perennial grass 1
Glyceria elata Tall mannagrass Perennial grass 8
Glyceria grandis American mannagrass Perennial grass (rhizomatous) 9
Glyceria occidentalis Waxy mannagrass Perennial grass (aquatic) 2
Glyceria striata Fowl mannagrass Perennial grass 8
Glycyrrhiza lepidota Lichorice Perennial herb 2
Gnaphalium canescens Everlasting cudweed Perennial herb 3
Gnaphalium canescens ssp. beneolens Cudweed Perennial herb 1
Gnaphalium canescens ssp. microcephalum White everlasting Perennial herb 1
Gnaphalium canescens ssp. thermale Small headed cudweed Perennial herb  
Goodyera oblongifolia Rattlesnake plantain Perennial herb 4
Grindelia camporum Gumweed Perennial herb 14
Grindelia camporum var. camporum Great valley gumweed Perennial herb 1
Grindelia hirsutula Gumweed Perennial herb 11
Grindelia hirsutula var. davyi Davy's gumweed Perennial herb 13
Grindelia nana Idaho gumweed Perennial herb  
Grindelia stricta Gumweed Perennial herb 28
Grindelia stricta var. platyphylla Gumplant Perennial herb 16
Grindelia stricta var. stricta Coastal gum plant Perennial herb 4
Hackelia amethystina Amethyst stickseed Perennial herb  
Hackelia bella Greater showy stickseed Perennial herb  
Hackelia californica California stickseed Perennial herb  
Hackelia micrantha Jessica's stickseed Perennial herb  
Hackelia setosa Bristly stickseed Perennial herb  
Hastingsia alba White hastingsia Perennial herb 2
Hastingsia serpentinicola Siskiyou hastingsia Perennial herb  
Hazardia whitneyi Whitney's bristleweed Perennial herb  
Hazardia whitneyi var. discoidea Rayless whitney's goldenbush Perennial herb  
Helenium autumnale Common sneezeweed Perennial herb 8
Helenium autumnale var. montanum Montane autumn sneezeweed Perennial herb 8
Helenium bigelovii Bigelow's sneezeweed Perennial herb 8
Helenium bolanderi Bolander's sneezeweed Perennial herb  
Helenium puberulum Sneezeweed Perennial herb 10
Heliotropium curassavicum Chinese parsley Perennial herb 8
Heliotropium curassavicum var. oculatum Seaside heliotrope Perennial herb 2
Hemieva ranunculifolia Buttercup-leaf suksdorfia Perennial herb  
Hemitomes congestum Gnome plant Perennial herb (mycoparasitic)  
Heracleum lanatum Cow parsnip Perennial herb 20
Heracleum maximum Common cow parsnip Perennial herb 20
Heterotheca oregona Oregon golden aster Perennial herb  
Heterotheca oregona var. compacta Compact oregon goldenaster Perennial herb  
Heterotheca oregona var. oregona Oregon goldenaster Perennial herb  
Heterotheca oregona var. rudis Red oregon goldenaster Perennial herb  
Heterotheca sessiliflora ssp. bolanderi Golden aster Perennial herb 7
Heuchera merriamii Merriam's alumroot Perennial herb 1
Heuchera micrantha Alum root Perennial herb 33
Heuchera micrantha var. diversifolia Crevice alumroot Perennial herb 32
Heuchera micrantha var. erubescens Crevice alumroot Perennial herb 31
Heuchera micrantha var. micrantha Crevice alumroot Perennial herb 2
Heuchera pringlei Merriam's alumroot Perennial herb 1
Heuchera rubescens Pink alumroot Perennial herb 6
Hieracium albiflorum White flowered hawkweed Perennial herb 1
Hieracium bolanderi Bolander's hawkweed Perennial herb  
Hieracium greenei Greene's 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 7
Hippuris vulgaris Mare's tail Perennial herb (aquatic) 1
Hordeum brachyantherum Meadow barley Perennial grass 24
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
Horkelia californica California horkelia Perennial herb 9
Horkelia californica ssp. californica California horkelia Perennial herb  
Horkelia californica ssp. dissita California horkelia Perennial herb  
Horkelia californica var. californica California horkelia Perennial herb  
Horkelia californica var. elata California horkelia Perennial herb  
Horkelia sericata Howell's horkelia Perennial herb  
Horkelia tridentata Three toothed horkelia Perennial herb  
Horkelia tridentata ssp. flavescens Three toothed horkelia Perennial herb  
Horkelia tridentata var. flavescens Three toothed horkelia Perennial herb  
Hosackia crassifolia Broad leaved lotus Perennial herb 6
Hosackia crassifolia var. crassifolia Broad leaved lotus Perennial herb 2
Hosackia gracilis Harlequin lotus Perennial herb 9
Hosackia oblongifolia Narrow leaved lotus Perennial herb 2
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus Perennial herb 1
Hosackia pinnata Pinnate lotus Perennial herb  
Hosackia rosea Rose flowered lotus Perennial herb 1
Hosackia stipularis Stipulate lotus Perennial herb  
Hosackia stipularis var. stipularis Stipulate lotus Perennial herb  
Hosackia yollabolliensis Yolla bolly mtns. bird's-foot trefoil Perennial herb 1
Hydrocotyle ranunculoides Marsh pennywort Perennial herb 2
Hydrophyllum fendleri Fendler's waterleaf Perennial herb  
Hydrophyllum fendleri var. albifrons White fendler's waterleaf Perennial herb  
Hydrophyllum occidentale Western waterleaf Perennial herb 1
Hydrophyllum tenuipes Pacific waterleaf Perennial herb 3
Hypericum concinnum Gold wire 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 latibracteata California globe mallow Perennial herb  
Ipomopsis aggregata Scarlet gilia Perennial herb 7
Ipomopsis aggregata ssp. aggregata Scarlet gilia Perennial herb 2
Ipomopsis aggregata ssp. formosissima Western scarlet gilia Perennial herb  
Iris chrysophylla Golden leaved iris Perennial herb 5
Iris douglasiana Douglas iris Perennial herb 52
Iris hartwegii Hartweg's iris Perennial herb 4
Iris innominata Del norte county iris Perennial herb (rhizomatous) 7
Iris longipetala Coast iris Perennial herb 25
Iris macrosiphon Ground iris Perennial herb 8
Iris purdyi Purdy's iris Perennial herb 2
Iris tenax Toughleaf iris Perennial herb (rhizomatous) 13
Iris tenax ssp. klamathensis Orleans iris Perennial herb (rhizomatous)  
Iris tenuissima Slender iris Perennial herb 1
Iris tenuissima ssp. tenuissima Slender iris Perennial herb  
Isopyrum stipitatum Siskiyou rue anemone Perennial herb  
Jaumea carnosa Marsh jaumea Perennial herb 7
Juncus balticus Wire rush Perennial grass 19
Juncus balticus ssp. ater Baltic rush Perennial grass 2
Juncus bolanderi Bolander's rush Perennial grass 4
Juncus breweri Brewer's rush Perennial grass  
Juncus bufonius var. occidentalis Round fruited toad rush Perennial grass  
Juncus confusus Colorado rush Perennial grass  
Juncus covillei Coville's rush Perennial grass  
Juncus covillei var. obtusatus Coville's rush Perennial grass  
Juncus dudleyi Dudley's rush Perennial grass 1
Juncus effusus Common bog rush Perennial grass 44
Juncus effusus ssp. pacificus Pacific rush Perennial grass 6
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 6
Juncus ensifolius Sword leaved rush Perennial grass 7
Juncus exiguus Klamath or weak rush Perennial grass  
Juncus falcatus Falcate rush Perennial grass 1
Juncus falcatus ssp. falcatus Falcate rush Perennial grass  
Juncus falcatus ssp. sitchensis Alaskan sickleleaved rush Perennial grass  
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 laccatus Shiny rush Perennial grass  
Juncus lescurii Dune rush Perennial grass 2
Juncus lesueurii Dune rush Perennial grass 2
Juncus mertensianus Merten's rush Perennial grass 1
Juncus mexicanus Mexican rush Perennial grass 10
Juncus nevadensis Sierra rush Perennial grass 1
Juncus nevadensis var. inventus Dune rush Perennial grass  
Juncus nevadensis var. nevadensis Nevada or sierran rush Perennial grass  
Juncus occidentalis Slender juncus Perennial grass 4
Juncus orthophyllus Straight leaved rush Perennial grass 1
Juncus oxymeris Pointed rush Perennial grass 1
Juncus parryi Parry's rush Perennial grass  
Juncus patens Rush Perennial grass 47
Juncus phaeocephalus Brown headed rush Perennial grass 10
Juncus phaeocephalus var. phaeocephalus Brown headed rush Perennial grass  
Juncus regelii Regel's rush Perennial grass (rhizomatous)  
Juncus saximontanus Rocky mountain rush Perennial grass  
Juncus supiniformis Hair leaved rush Perennial grass (rhizomatous) 1
Juncus tenuis Slender rush Perennial grass 9
Juncus xiphioides Iris leaved rush Perennial grass 16
Kelloggia galioides Kelloggia Perennial herb  
Koeleria macrantha June grass Perennial grass 29
Kopsiopsis hookeri Small groundcone Perennial herb  
Kopsiopsis strobilacea California ground-cone Perennial herb (parasitic)  
Kyhosia bolanderi Bolander's madia Perennial herb  
Lasthenia californica ssp. macrantha Perennial goldfields Perennial herb 3
Lathyrus biflorus Two flowered pea Perennial herb  
Lathyrus brownii Brown's brush pea Perennial herb  
Lathyrus delnorticus Del norte pea Perennial herb  
Lathyrus glandulosus Sticky pea Perennial herb (rhizomatous)  
Lathyrus japonicus Sea pea Perennial herb 2
Lathyrus jepsonii Tule pea Perennial herb 1
Lathyrus jepsonii var. californicus California tule pea Perennial herb 1
Lathyrus lanszwertii Nevada pea Perennial herb  
Lathyrus lanszwertii var. lanszwertii Nevada pea Perennial herb  
Lathyrus lanszwertii var. tracyi Tracy's nevada pea Perennial herb  
Lathyrus littoralis Beach pea Perennial herb 1
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  
Lathyrus palustris Marsh pea Perennial herb  
Lathyrus polyphyllus Oregon pea Perennial herb  
Lathyrus sulphureus Sulpher pea Perennial herb  
Lathyrus torreyi Redwood pea Perennial herb  
Lathyrus vestitus Common pacific pea Perennial herb 7
Lathyrus vestitus var. ochropetalus Bolander's pacific pea Perennial herb  
Lathyrus vestitus var. vestitus Hillside pea Perennial herb 2
Leersia oryzoides Rice cutgrass Perennial grass 2
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  
Leptosiphon nuttallii Nuttall's linanthus Perennial herb 2
Leptosiphon nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb 2
Lessingia filaginifolia Common california aster Perennial herb 17
Lessingia filaginifolia var. californica Beach aster Perennial herb 9
Lessingia filaginifolia var. filaginifolia Common california aster Perennial herb 8
Lewisia cotyledon Cliff lewisia Perennial herb 20
Lewisia cotyledon var. heckneri Heckner's lewisia Perennial herb  
Lewisia cotyledon var. howellii Howell's lewisia Perennial herb  
Lewisia kelloggii Kellogg's lewisia Perennial herb  
Lewisia kelloggii ssp. hutchisonii Sierra valley lewisia Perennial herb  
Lewisia kelloggii ssp. kelloggii Kellogg's lewisia Perennial herb  
Lewisia leana Quill leaved lewisia Perennial herb 2
Lewisia leeana Quill leaf lewisia Perennial herb 2
Lewisia nevadensis Sierra lewisia Perennial herb 2
Lewisia pygmaea Pigmy bitter root Perennial herb 3
Lewisia triphylla Three leaved lewisia Perennial herb  
Leymus Xvancouverensis Vancouver wild rye Perennial grass  
Leymus mollis American dunegrass Perennial grass 4
Leymus mollis ssp. mollis American dune grass Perennial grass  
Leymus triticoides Alkali rye Perennial grass 30
Ligusticum apiifolium Celery leaved lovage Perennial herb 2
Ligusticum californicum California lovage Perennial herb  
Ligusticum grayi Gray's lovage Perennial herb  
Lilaeopsis occidentalis Lilaeopsis Perennial herb  
Lilium bolanderi Bolander's lily Perennial herb (bulb) 2
Lilium columbianum Columbia lily Perennial herb 13
Lilium humboldtii Humboldt's lily Perennial herb 8
Lilium humboldtii ssp. humboldtii Humboldt's lily Perennial herb (bulb) 1
Lilium kelleyanum Kelley's lily Perennial herb  
Lilium kelloggii Kellogg's lily Perennial herb (bulb) 1
Lilium maritimum Coast lily Perennial herb (bulb) 1
Lilium occidentale Western lily Perennial herb (bulb)  
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 pardalinum ssp. vollmeri Vollmer's lily Perennial herb (bulb) 2
Lilium rubescens Chaparral lily Perennial herb (bulb) 2
Lilium washingtonianum Washington lily Perennial herb 6
Lilium washingtonianum ssp. purpurascens Purple flowered washington lily Perennial herb (bulb)  
Lilium washingtonianum ssp. washingtonianum Typical washington lily Perennial herb 1
Limonium californicum Marsh rosemary Perennial herb 11
Linanthus nuttallii Nuttall's linanthus Perennial herb 2
Linanthus nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb  
Linnaea borealis Twinflower Perennial herb 8
Linnaea borealis ssp. americana Twinflower Perennial herb 2
Linnaea borealis var. longiflora Twin flower Perennial herb 2
Linum lewisii Lewis' flax Perennial herb 38
Linum lewisii var. lewisii Lewis' flax Perennial herb 5
Listera banksiana Northwest twayblade Perennial herb  
Listera caurina Northwest twayblade Perennial herb  
Listera convallarioides Broad lipped twayblade Perennial herb  
Listera cordata Heart leaved twayblade Perennial herb  
Listera cordata var. nephrophylla Heartleaf twayblade Perennial herb  
Lithophragma affine Common woodland star Perennial herb 1
Lithophragma bolanderi Hillstar Perennial herb  
Lithophragma campanulatum Siskiyou mountain woodland star Perennial herb  
Lithophragma glabrum Bulbed woodland star Perennial herb  
Lithophragma heterophyllum Woodland star Perennial herb 1
Lithophragma parviflorum Pink woodland star Perennial herb 1
Lithophragma parviflorum var. parviflorum Pink woodland star Perennial herb  
Lithospermum californicum California gromwell Perennial herb  
Lomatium californicum Celery weed Perennial herb 4
Lomatium ciliolatum Yolla bolly lomatium Perennial herb  
Lomatium ciliolatum var. ciliolatum Yolla bolly biscuitroot Perennial herb  
Lomatium dasycarpum Lace parsnip Perennial herb 4
Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium Perennial herb  
Lomatium dasycarpum ssp. tomentosum Woolly fruited lomatium Perennial herb  
Lomatium dissectum Fern leaved lomatium Perennial herb 3
Lomatium dissectum var. dissectum Fern leaved lomatium Perennial herb 1
Lomatium dissectum var. multifidum Fern leaved lomatium Perennial herb 1
Lomatium fusiformis California indian potato Perennial herb  
Lomatium macrocarpum Large fruited lomatium Perennial herb 2
Lomatium multifidum Fern leaved lomatium Perennial herb 1
Lomatium nudicaule Pestle lomatium Perennial herb 3
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 crassifolius Broad leaved lotus Perennial herb 7
Lotus crassifolius var. crassifolius Broad leaved lotus Perennial herb 2
Lotus formosissimus Coast lotus Perennial herb 9
Lotus junceus Rush lotus Perennial herb 2
Lotus junceus var. junceus Rush lotus Perennial herb  
Lotus nevadensis Sierra lotus Perennial herb  
Lotus nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Lotus oblongifolius Narrow leaved lotus Perennial herb  
Lotus oblongifolius var. oblongifolius Narrow leaved lotus Perennial herb 1
Lotus pinnatus Pinnate lotus Perennial herb  
Lotus scoparius Deerweed Perennial herb 22
Lotus stipularis 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 peploides ssp. peploides Floating water primrose Perennial herb  
Luina hypoleuca Little leaf luina Perennial herb  
Lupinus adsurgens Drew's silky lupine Perennial herb  
Lupinus adsurgens var. undulatus Drew's silky lupine Perennial herb  
Lupinus albicaulis White stemmed lupine Perennial herb 8
Lupinus albicaulis var. shastensis Shasta lupine Perennial herb  
Lupinus andersonii Anderson's lupine Perennial herb  
Lupinus breweri Brewer's lupine Perennial herb 2
Lupinus constancei Lassics lupine Perennial herb  
Lupinus croceus Mt. eddy lupine Perennial herb 1
Lupinus dalesiae Quincy lupine Perennial herb  
Lupinus elmeri Elmer's lupine Perennial herb  
Lupinus formosus Western lupine Perennial herb 6
Lupinus formosus var. formosus Western lupine Perennial herb  
Lupinus latifolius Broad leaf lupine Perennial herb 9
Lupinus latifolius var. barbatus Hair tuft lupine Perennial herb  
Lupinus latifolius var. columbianus Broad leaved lupine Perennial herb  
Lupinus latifolius var. latifolius Broad leaf lupine Perennial herb  
Lupinus latifolius var. viridifolius Green leaf lupine Perennial herb  
Lupinus lepidus Tidy lupine Perennial herb 1
Lupinus lepidus var. lobbii Lobb's lupine Perennial herb  
Lupinus lepidus var. sellulus Stool lupine Perennial herb  
Lupinus littoralis Seashore lupine Perennial herb 3
Lupinus onustus Northern lupine Perennial herb 1
Lupinus polyphyllus Bog lupine Perennial herb 27
Lupinus polyphyllus var. pallidipes Pale meadow lupine Perennial herb  
Lupinus polyphyllus var. polyphyllus Meadow lupine Perennial herb 1
Lupinus rivularis Riverbank lupine Perennial herb 8
Lupinus tidestromii Tidestrom's lupine Perennial herb (rhizomatous)  
Lupinus tidestromii var. layneae Layne's lupine Perennial herb (rhizomatous)  
Lupinus tracyi Tracy's lupine Perennial herb  
Luzula comosa Hairy wood rush Perennial grass 4
Luzula comosa var. laxa Hairy wood rush Perennial grass 3
Luzula multiflora Common woodrush Perennial grass 1
Luzula parviflora Small flowered wood rush Perennial grass 2
Luzula parviflora ssp. parviflora Small flowered wood rush Perennial grass  
Luzula subcongesta Donner wood rush Perennial grass  
Luzula subsessilis Pacific woodrush Perennial grass 3
Lycopus uniflorus Northern bugleweed Perennial herb  
Lysichiton americanus Yellow skunk cabbage Perennial herb 8
Lysimachia europaea Arctic starflower Perennial herb 1
Lysimachia latifolia Pacific starflower Perennial herb 2
Lysimachia maritima Sea milkwort Perennial herb  
Madia bolanderi Bolander's tarweed Perennial herb  
Madia madioides Forest madia Perennial herb 1
Maianthemum dilatatum Pacific may lily Perennial herb 11
Maianthemum racemosum Feathery false lily of the valley Perennial herb 19
Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley Perennial herb 3
Maianthemum stellatum Starry false lily of the valley Perennial herb 17
Marah fabacea California man-root Perennial herb, Vine 5
Marah fabaceus Manroot Perennial herb, Vine 6
Marah fabaceus var. agrestis Wild cucumber Perennial herb, Vine 4
Marah fabaceus var. fabaceus California manroot Perennial herb, Vine 4
Marah oregana Coast man-root Perennial herb, Vine 3
Marah oreganus Manroot Perennial herb, Vine 3
Melica aristata Awned melic Perennial grass 1
Melica bulbosa Oniongrass Perennial grass 1
Melica californica California melic Perennial grass 25
Melica californica var. nevadensis Few flowered california melic Perennial grass  
Melica fugax Small onion grass Perennial grass  
Melica geyeri Geyer's onion grass Perennial grass  
Melica geyeri var. geyeri Geyer's oniongrass Perennial grass  
Melica harfordii Harford's melic Perennial grass 2
Melica spectabilis Purple onion grass Perennial grass (rhizomatous)  
Melica stricta Nodding melica Perennial grass  
Melica subulata Alaska melic Perennial grass 1
Melica torreyana Torrey's melica Perennial grass 11
Mentha arvensis American wild mint Perennial herb 6
Mentha canadensis Wild mint Perennial herb 6
Mentzelia laevicaulis Giant blazingstar Perennial herb 5
Menyanthes trifoliata Bogbean Perennial herb 2
Micranthes aprica Sierra saxifrage Perennial herb  
Micranthes californica Greene's saxifrage Perennial herb  
Micranthes ferruginea Rusty hair saxifrage Perennial herb  
Micranthes howellii Howell's saxifrage Perennial herb  
Micranthes integrifolia Smooth leaf saxifrage Perennial herb  
Micranthes marshallii Marshall's saxifrage Perennial herb  
Micranthes nidifica Peak saxifrage Perennial herb  
Micranthes oregana Bog saxifrage Perennial herb  
Microseris borealis Northern microseris Perennial herb  
Microseris laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. leptosepala 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 cardinalis Cardinal monkey flower Perennial herb 41
Mimulus dentatus Tooth leaved monkeyflower Perennial herb 1
Mimulus moschatus Musk monkeyflower Perennial herb 1
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  
Minuartia cismontana Cismontane minuartia Perennial herb  
Minuartia decumbens The lassics sandwort Perennial herb  
Minuartia howellii Howell's sandwort Perennial herb  
Minuartia nuttallii Nuttall sandwort Perennial herb  
Minuartia nuttallii ssp. gregaria Gregarious sandwort Perennial herb  
Minuartia nuttallii var. gregaria Nuttall sandwort 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  
Mitellastra caulescens Leafy-stemmed mitrewort Perennial herb  
Moehringia macrophylla Large leaved sandwort Perennial herb  
Monardella antonina San antonio hills monardella Perennial herb (rhizomatous) 5
Monardella antonina ssp. antonina San antonio hills monardella Perennial herb (rhizomatous) 4
Monardella antonina ssp. benitensis San Benito monardella Perennial herb (rhizomatous) 3
Monardella glauca Grey monardella Perennial herb 1
Monardella odoratissima Mountain monardella Perennial herb 21
Monardella odoratissima ssp. glauca Mountain mint Perennial herb 1
Monardella odoratissima ssp. odoratissima Mountain monardella Perennial herb  
Monardella odoratissima ssp. pallida Pale mountain monardella Perennial herb  
Monardella odoratissima ssp. parvifolia Matted mountain monardella Perennial herb  
Monardella purpurea Siskiyou monardella Perennial herb 3
Monardella sheltonii Shelton's coyote mint Perennial herb 1
Monardella siskiyouensis Siskiyou coyote mint Perennial herb 3
Monardella villosa Coyote mint Perennial herb 28
Monardella villosa ssp. globosa Robust monardella Perennial herb (rhizomatous) 3
Monardella villosa ssp. villosa Coyote mint Perennial herb 5
Monardella villosa var. subglabra Coyote mint Perennial herb 3
Moneses uniflora Woodnymph Perennial herb  
Monotropa hypopitys Pinesap Perennial herb (mycoparasitic)  
Monotropa uniflora Indian pipe Perennial herb (mycoparasitic)  
Montia chamissoi Spring beauty Perennial herb  
Montia parvifolia Showy rock montia Perennial herb 4
Muhlenbergia andina Foxtail muhly Perennial grass  
Muhlenbergia mexicana Mexican muhly Perennial grass 1
Myosotis laxa Forget me not Perennial herb  
Myriophyllum hippuroides Western milfoil Perennial herb (aquatic)  
Myriophyllum sibiricum Siberian water milfoil Perennial herb (aquatic)  
Myriophyllum verticillatum Verticillate milfoil Perennial herb (aquatic)  
Nama lobbii Lobb's nama Perennial herb 1
Narthecium californicum California bog asphodel Perennial herb  
Nassella cernua Nodding needlegrass Perennial grass 24
Nassella lepida Small flowered stipa Perennial grass 25
Nassella pulchra Purple needlegrass Perennial grass 42
Nasturtium officinale Watercress Perennial herb (aquatic) 3
Noccaea fendleri Pennycress Perennial herb  
Noccaea fendleri ssp. californica Kneeland prairie pennycress Perennial herb  
Noccaea fendleri ssp. glauca Pennycress Perennial herb 1
Nuphar luteum ssp. polysepalum Indian pond lily Perennial herb (aquatic)  
Nuphar polysepala Rocky mountain pond-lily Perennial herb (aquatic) 3
Oenanthe sarmentosa Water parsley Perennial herb 9
Oenothera elata Evening primrose Perennial herb 16
Oenothera elata ssp. hookeri Evening primrose Perennial herb 18
Oenothera villosa Hairy evening primrose Perennial herb  
Oenothera villosa ssp. strigosa Hairy evening primrose Perennial herb 20
Oenothera wolfii Wolf's evening primrose Perennial herb  
Olsynium douglasii Douglas' grasswidow Perennial herb 4
Olsynium douglasii var. douglasii Douglas' grasswidow Perennial herb 4
Oreostemma alpigenum Tundra aster Perennial herb 3
Oreostemma alpigenum var. andersonii Tundra aster Perennial herb 1
Orobanche californica California orobanche Perennial herb (parasitic)  
Orobanche californica ssp. californica Broomrape Perennial herb (parasitic)  
Orobanche californica ssp. grayana Gray's california broom rape Perennial herb (parasitic)  
Orobanche fasciculata Clustered broomrape Perennial herb (parasitic)  
Orobanche pinorum Pinewoods broom rape Perennial herb (parasitic)  
Orobanche uniflora Naked broom rape Perennial herb (parasitic)  
Orobanche uniflora var. purpurea Naked broom rape Perennial herb (parasitic)  
Orogenia fusiformis California indian potato Perennial herb  
Orthilia secunda One sided wintergreen Perennial herb  
Osmorhiza berteroi Sweet cicely Perennial herb 3
Osmorhiza chilensis Western sweet cicely Perennial herb 3
Osmorhiza occidentalis Western sweet cicely Perennial herb 2
Osmorhiza purpurea Purple sweet cicely Perennial herb  
Oxalis albicans Hairywood sorrell Perennial herb  
Oxalis albicans ssp. pilosa Hairy wood sorrel Perennial herb  
Oxalis californica Californica wood sorrel Perennial herb  
Oxalis corniculata ssp. pilosa Hairy wood sorrel Perennial herb  
Oxalis oregana Redwood sorrel Perennial herb 33
Oxalis suksdorfii Suksdorf woodsorrel Perennial herb  
Oxalis trilliifolia Three leaf woodsorrel Perennial herb  
Oxypolis occidentalis Western cow bane Perennial herb  
Ozomelis diversifolia Angle leafed miterwort Perennial herb  
Ozomelis trifida Three parted miterwort Perennial herb  
Packera bolanderi Bolander's ragwort Perennial herb  
Packera bolanderi var. bolanderi Bolander's ragwort Perennial herb  
Packera macounii Siskiyou mountain ragwort Perennial herb  
Panicum acuminatum Western witch grass Perennial grass  
Panicum acuminatum var. fasciculatum Pacific panic grass Perennial grass  
Panicum acuminatum var. lindheimeri Lindheimer panicgrass Perennial grass  
Parnassia californica Grass of parnassus Perennial herb  
Parnassia palustris Marsh grass of parnassus Perennial herb  
Paspalum distichum Knot grass Perennial grass 2
Pectiantia ovalis Coastal miterwort Perennial herb 2
Pectiantia pentandra Alpine mitrewort Perennial herb 1
Pedicularis attollens Attol lousewort Perennial herb  
Pedicularis densiflora Indian warrior Perennial herb 1
Pedicularis groenlandica Elephant head lousewort Perennial herb 2
Pedicularis racemosa Leafy lousewort Perennial herb  
Pedicularis semibarbata Pine woods lousewort Perennial herb  
Penstemon anguineus Siskiyou beardtongue Perennial herb 1
Penstemon azureus Blue penstemon Perennial herb 12
Penstemon azureus var. angustissimus Azure penstemon Perennial herb 4
Penstemon azureus var. azureus Azure penstemon Perennial herb 2
Penstemon deustus Rock penstemon Perennial herb 2
Penstemon deustus var. deustus Scabland penstemon Perennial herb  
Penstemon heterophyllus Foothill penstemon Perennial herb 40
Penstemon heterophyllus var. purdyi Purdy's foothill penstemon Perennial herb 1
Penstemon laetus Mountain blue penstemon Perennial herb 1
Penstemon laetus var. sagittatus Mountain blue penstemon Perennial herb  
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 parvulus Short stalk penstemon Perennial herb 1
Penstemon procerus Small flowered penstemon Perennial herb 7
Penstemon procerus var. brachyanthus Small flowered penstemon Perennial herb 1
Penstemon purpusii Snow mtn. beardtongue Perennial herb 1
Penstemon rattanii Rattan's beardtongue Perennial herb  
Penstemon rattanii var. kleei Santa cruz mtns. beardtongue Perennial herb 1
Penstemon rattanii var. rattanii Rattan's beardtongue Perennial herb  
Perideridia gairdneri Gairdner's yampah Perennial herb 2
Perideridia gairdneri ssp. borealis Northern gairdner's yampah Perennial herb  
Perideridia gairdneri ssp. gairdneri Gairdner's yampah Perennial herb  
Perideridia howellii Howell's yampah Perennial herb  
Perideridia kelloggii Yampah Perennial herb 5
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
Persicaria punctata Dotted smartweed Perennial herb 4
Petasites frigidus Arctic sweet coltsfoot Perennial herb 3
Petasites frigidus var. palmatus Western coltsfoot Perennial herb 10
Phacelia bolanderi Bolander's phacelia Perennial herb 13
Phacelia californica Rock phacelia Perennial herb 17
Phacelia corymbosa Serpentine phacelia Perennial herb  
Phacelia egena Rock phacelia Perennial herb 3
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 mutabilis Changeable phacelia Perennial herb  
Phacelia nemoralis Woods phacelia Perennial herb  
Phacelia nemoralis ssp. nemoralis Woods phacelia Perennial herb  
Phacelia nemoralis ssp. oregonensis Oregon woods phacelia Perennial herb  
Phacelia nemoralis var. nemoralis Woods phacelia Perennial herb  
Phacelia nemoralis var. oregonensis Oregon woods phacelia Perennial herb  
Phacelia procera Tall phacelia Perennial herb  
Phacelia ramosissima Branching phacelia Perennial herb 3
Phalaris arundinacea Reed canarygrass Perennial grass 8
Phalaris californica Canarygrass Perennial grass 2
Phleum alpinum Timothy grass Perennial grass 2
Phlox adsurgens Northern phlox Perennial herb 3
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 speciosa Showy phlox Perennial herb  
Phoenicaulis cheiranthoides Dagger pod Perennial herb 1
Phragmites australis Common reed Perennial grass 1
Phyla nodiflora Common lippia Perennial herb 13
Phyllospadix scouleri Scouler's surfgrass Perennial herb  
Phyllospadix torreyi Surf grass Perennial herb  
Piperia candida White flowered rein orchid Perennial herb  
Piperia elegans Rein orchid Perennial herb  
Piperia elegans ssp. elegans Elegant piperia Perennial herb  
Piperia elongata Dense flowered rein orchid Perennial herb  
Piperia michaelii Michael's rein orchid Perennial herb  
Piperia transversa Mountain piperia Perennial herb  
Piperia unalascensis Alaska piperia Perennial herb  
Pityopus californica Pityopus Perennial herb (mycoparasitic)  
Pityopus californicus Perennial herb (mycoparasitic)  
Plantago eriopoda Hairy fruited plantain Perennial herb  
Plantago maritima Maritime plantain Perennial herb 5
Plantago maritima var. juncoides Rush like maritime plantain Perennial herb 5
Plantago subnuda Coastal plantain Perennial herb 6
Platanthera dilatata Scentbottle Perennial herb  
Platanthera dilatata var. leucostachys Sierra bog orchid Perennial herb  
Platanthera leucostachys White flowered bog orchid Perennial herb  
Platanthera sparsiflora Bog orchid Perennial herb  
Platanthera stricta Slender bog orchid Perennial herb  
Pleuricospora fimbriolata Fringed pinesap Perennial herb (mycoparasitic)  
Pleuropogon californicus Semaphore grass Perennial grass (rhizomatous)  
Pleuropogon refractus Nodding semaphore grass Perennial grass (rhizomatous)  
Poa ampla Western blue grass Perennial grass 15
Poa confinis Beach blue grass Perennial grass  
Poa cusickii Cusick's bluegrass Perennial grass  
Poa cusickii ssp. epilis Skyline bluegrass Perennial grass  
Poa douglasii Sand dune blue grass Perennial grass  
Poa juncifolia Western blue grass Perennial grass 14
Poa kelloggii Redwood blue grass Perennial grass  
Poa macrantha Large flowered sand dune blue grass Perennial grass  
Poa nevadensis Sierra blue grass Perennial grass 14
Poa piperi Piper's blue grass Perennial grass (rhizomatous)  
Poa pratensis ssp. agassizensis Agassiz kentucky blue grass Perennial grass  
Poa pringlei Pringle's blue grass Perennial grass  
Poa rhizomata Timber blue grass Perennial grass (rhizomatous)  
Poa secunda Pine bluegrass Perennial grass 17
Poa secunda ssp. juncifolia Rush blue grass Perennial grass 14
Poa secunda ssp. secunda Sandberg's bluegrass Perennial grass 18
Poa unilateralis Ocean bluff blue grass Perennial grass  
Polemonium carneum Great polemonium Perennial herb 3
Polygala californica Milkwort Perennial herb  
Polygala cornuta Sierra milkwort Perennial herb  
Polygala cornuta var. cornuta Sierra 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 bolanderi Bolander's polygonum Perennial herb  
Polygonum davisiae Davis knotweed Perennial herb  
Polygonum newberryi Newberry's smartweed Perennial herb  
Polygonum paronychia Dune knotweed Perennial herb 4
Polygonum phytolaccifolium Pokeweed knotweed Perennial herb  
Polygonum punctatum Punctate smartweed Perennial herb 4
Potamogeton filiformis Slender leaved pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus Leafy 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 richardsonii Richardson's pondweed Perennial herb (aquatic)  
Potentilla anserina Silver weed cinquefoil Perennial herb 16
Potentilla anserina ssp. anserina Silver weed cinquefoil Perennial herb 3
Potentilla anserina ssp. pacifica Silverweed Perennial herb 4
Potentilla drummondii Drummond's cinquefoil Perennial herb 2
Potentilla glandulosa Gland cinquefoil Perennial herb 12
Potentilla glandulosa ssp. ashlandica Mountain 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. reflexa Sticky cinquefoil Perennial herb  
Potentilla gracilis Northwest cinquefoil Perennial herb 15
Potentilla gracilis var. fastigiata Slender cinquefoil Perennial herb  
Potentilla gracilis var. gracilis Slender cinquefoil Perennial herb  
Potentilla palustris Marsh cinquefoil Perennial herb 5
Primula clevelandii Padre's shooting star Perennial herb 7
Primula hendersonii Mosquito bill Perennial herb 11
Primula jeffreyi Sierra shooting star Perennial herb 3
Primula tetrandra Alpine shooting star Perennial herb 2
Prosartes hookeri Drops of gold Perennial herb 11
Prosartes hookeri var. hookeri Drops of gold Perennial herb 6
Prosartes hookeri var. trachyandra Drops of gold Perennial herb 6
Prosartes smithii Largeflower fairybells Perennial herb 6
Prunella vulgaris Self heal Perennial herb 19
Prunella vulgaris var. lanceolata Mountain selfheal Perennial herb 8
Pseudognaphalium beneolens Cudweed Perennial herb 1
Pseudognaphalium canescens Wright's cudweed Perennial herb 2
Pseudognaphalium canescens ssp. beneolens Wright's cudweed Perennial herb 1
Pseudognaphalium canescens ssp. canescens Wright's cudweed Perennial herb  
Pseudognaphalium canescens ssp. microcephalum Wright's cudweed Perennial herb  
Pseudognaphalium microcephalum Wright's cudweed Perennial herb 3
Pseudognaphalium stramineum Cottonbatting plant Perennial herb 4
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  
Pseudotrillium rivale Siskiyou wakerobin Perennial herb 1
Pterospora andromedea Pine drops Perennial herb (parasitic)  
Puccinellia californica Sierra nevada alkali grass Perennial grass (rhizomatous)  
Puccinellia grandis Alaska alkali grass Perennial grass  
Puccinellia nutkaensis Alaska alkali grass Perennial grass  
Puccinellia pumila Dwarf alkali grass Perennial grass  
Pyrola aphylla Leafless wintergreen Perennial herb  
Pyrola asarifolia Bog wintergreen Perennial herb  
Pyrola asarifolia ssp. asarifolia Bog wintergreen Perennial herb  
Pyrola asarifolia ssp. bracteata Bog wintergreen Perennial herb  
Pyrola crypta Cryptic wintergreen Perennial herb  
Pyrola dentata Toothed wintergreen Perennial herb  
Pyrola minor Lesser wintergreen Perennial herb  
Pyrola picta White veined shinleaf Perennial herb  
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 aquatilis white water butter cup Perennial herb (aquatic)  
Ranunculus aquatilis var. aquatilis White water butter cup Perennial herb (aquatic)  
Ranunculus aquatilis var. capillaceus Threadleaf crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. diffusus white water butter cup Perennial herb (aquatic)  
Ranunculus aquatilis var. hispidulus White water crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. subrigidus Longbeak buttercup Perennial herb (aquatic)  
Ranunculus californicus Common buttercup Perennial herb 11
Ranunculus californicus var. californicus Common buttercup Perennial herb 2
Ranunculus californicus var. cuneatus Common buttercup Perennial herb 9
Ranunculus flammula Spearwort Perennial herb 1
Ranunculus flammula var. ovalis Greater creeping spearwort Perennial herb  
Ranunculus longirostris Longbeak buttercup Perennial herb (aquatic)  
Ranunculus occidentalis Western buttercup Perennial herb 6
Ranunculus occidentalis var. occidentalis Western buttercup Perennial herb  
Ranunculus orthorhynchus Bloomer's buttercup Perennial herb  
Ranunculus orthorhynchus var. bloomeri Bloomer's buttercup Perennial herb  
Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup Perennial herb  
Ranunculus orthorhynchus var. platyphyllus Bloomer's buttercup Perennial herb  
Romanzoffia californica California romanzoffia Perennial herb 4
Romanzoffia sitchensis Sitka romanzoffia Perennial herb 1
Romanzoffia tracyi Tracy's romanzoffia Perennial herb  
Rorippa columbiae Columbia yellow cress Perennial herb (rhizomatous)  
Rorippa nasturtium-aquaticum Water cress Perennial herb (aquatic) 3
Rudbeckia californica California cone flower Perennial herb 6
Rudbeckia californica var. intermedia California cone flower Perennial herb  
Rudbeckia klamathensis Klamath coneflower Perennial herb  
Rudbeckia occidentalis Western coneflower Perennial herb 10
Rumex californicus California dock Perennial herb  
Rumex crassus Willow leaved dock Perennial herb  
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. salicifolius Willow dock Perennial herb 6
Rumex salicifolius var. transitorius Willow dock Perennial herb  
Rumex transitorius Willow dock Perennial herb  
Rupertia physodes Common rupertia Perennial herb 1
Ruppia cirrhosa Ditch grass Perennial herb (aquatic)  
Ruppia maritima Ditch grass Perennial herb (aquatic)  
Sabulina decumbens The Lassics sandwort Perennial herb  
Sabulina howellii Howell's sandwort Perennial herb  
Sagina maxima Stickystem pearlwort Perennial herb  
Sagina maxima ssp. crassicaulis Beach pearlwort Perennial herb  
Sagina procumbens Arctic pearlwort Perennial herb  
Sagina saginoides Alpine pearlwort Perennial herb  
Sagittaria latifolia Broad leaf arrowhead Perennial herb (aquatic) 11
Salicornia pacifica Pickleweed Perennial herb 8
Sanguisorba officinalis Great burnet Perennial herb (rhizomatous) 2
Sanicula arctopoides Yellow mats Perennial herb  
Sanicula bipinnata Poison sanicle Perennial herb  
Sanicula bipinnatifida Purple sanicle Perennial herb  
Sanicula crassicaulis Pacific sanicle Perennial herb 2
Sanicula graveolens Sierra sanicle Perennial herb  
Sanicula laciniata Coast sanicle Perennial herb  
Sanicula peckiana Peck's sanicle Perennial herb  
Sanicula tracyi Tracy's sanicle Perennial herb  
Sanicula tuberosa Turkey pea Perennial herb  
Sarcodes sanguinea Snow plant Perennial herb (mycoparasitic)  
Satureja douglasii Yerba buena Perennial herb 35
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 howellii Howell's saxifrage Perennial herb (rhizomatous)  
Saxifraga integrifolia Smooth leaf saxifrage Perennial herb  
Saxifraga marshallii Marshall's saxifrage Perennial herb  
Saxifraga mertensiana Wood saxifrage Perennial herb  
Saxifraga nidifica Peak saxifrage Perennial herb  
Saxifraga nidifica var. nidifica Peak saifrage Perennial herb  
Saxifraga oregana Bog saxifrage Perennial herb  
Saxifragopsis fragarioides Strawberry saxifrage Perennial herb  
Schoenoplectus acutus Hardstem bulrush Perennial grass 25
Schoenoplectus acutus var. occidentalis Tule Perennial grass 1
Schoenoplectus americanus Chairmaker's bulrush Perennial grass 17
Schoenoplectus californicus California bulrush Perennial grass 14
Schoenoplectus pungens Common threesquare Perennial grass 2
Schoenoplectus pungens var. badius Common threesquare Perennial grass  
Schoenoplectus pungens var. longispicatus Common threesquare Perennial grass 2
Schoenoplectus subterminalis Swaying bulrush Perennial grass (rhizomatous)  
Schoenoplectus tabernaemontani Softstem bulrush Perennial grass 12
Scirpus acutus var. occidentalis Hard stemmed tule Perennial grass 1
Scirpus americanus American tule Perennial grass 17
Scirpus californicus California tule Perennial grass 14
Scirpus congdonii Congdon's bulrush Perennial grass  
Scirpus diffusus Diffuse rush Perennial grass  
Scirpus maritimus Prairie bulrush Perennial grass 15
Scirpus microcarpus Small fruited bulrush Perennial grass 20
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
Scoliopus bigelovii Slink pod Perennial herb 1
Scrophularia californica California bee plant Perennial herb 30
Scrophularia californica ssp. californica California bee plant Perennial herb 30
Scutellaria antirrhinoides Snapdragon skullcap Perennial herb 2
Scutellaria bolanderi Bolander's skullcap Perennial herb  
Scutellaria californica California skullcap Perennial herb 4
Scutellaria siphocampyloides Gray leaved skullcap Perennial herb 5
Scutellaria tuberosa Danny's scullcap Perennial herb 1
Sedum divergens Cascade stonecrop Perennial herb 13
Sedum lanceolatum Lance leaf stonecrop Perennial herb 4
Sedum laxum Rose flowered stonecrop Perennial herb 4
Sedum laxum ssp. flavidum Pale yellow stonecrop Perennial herb  
Sedum laxum ssp. heckneri Heckner's stonecrop Perennial herb 2
Sedum laxum ssp. laxum Rose flowered stonecrop Perennial herb 2
Sedum obtusatum Sierra stonecrop Perennial herb 7
Sedum obtusatum ssp. boreale Small flowered sierra stonecrop Perennial herb 1
Sedum obtusatum ssp. retusum Klamath stonecrop Perennial herb  
Sedum oregonense Cream stonecrop Perennial herb 4
Sedum spathulifolium Pacific stonecrop Perennial herb 28
Sedum stenopetalum Narrow leaf stonecrop Perennial herb 9
Senecio aronicoides Butterweed Perennial herb  
Senecio bolanderi var. bolanderi Bolander's ragwort Perennial herb  
Senecio hydrophilus Alkali marsh ragwort 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 integerrimus var. ochroleucus White flowered mountain butterweed Perennial herb  
Senecio macounii Siskiyou mtns. ragwort Perennial herb  
Senecio triangularis Groundsel Perennial herb  
Sericocarpus oregonensis Oregon whitetop aster Perennial herb  
Sericocarpus oregonensis ssp. oregonensis Oregon whitetop aster Perennial herb  
Sericocarpus oregonensis var. oregonensis Oregon whitetop aster Perennial herb  
Setaria gracilis Perennial foxtail Perennial grass  
Setaria parviflora Marsh bristlegrass Perennial grass  
Sidalcea asprella Harsh checker mallow Perennial herb (rhizomatous)  
Sidalcea asprella ssp. asprella Harsh checkerbloom, sierra foothills checkerbloom Perennial herb  
Sidalcea asprella ssp. nana Dwarf sierran checkerbloom Perennial herb  
Sidalcea glaucescens Glaucous checker mallow Perennial herb  
Sidalcea malachroides Maple leaved checkerbloom Perennial herb  
Sidalcea malviflora Wild hollyhock Perennial herb 20
Sidalcea malviflora ssp. asprella Harsh checker mallow Perennial herb (rhizomatous)  
Sidalcea malviflora ssp. patula Siskiyou checkerbloom Perennial herb (rhizomatous) 1
Sidalcea oregana Oregon checker mallow Perennial herb 4
Sidalcea oregana ssp. eximia Coast checkerbloom Perennial herb  
Sidalcea oregana ssp. hydrophila Marsh checkerbloom Perennial herb  
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 bolanderi Bolander's silene Perennial herb  
Silene campanulata Campanulate campion Perennial herb  
Silene campanulata ssp. campanulata Red mtn. catchfly Perennial herb  
Silene campanulata ssp. glandulosa Campanulate catchfly Perennial herb  
Silene douglasii Douglas' campion Perennial herb 1
Silene grayi Gray's campion Perennial herb  
Silene hookeri Hooker's campion Perennial herb 1
Silene laciniata Cardinal catchfly Perennial herb 6
Silene laciniata ssp. californica California indian pink Perennial herb 2
Silene lemmonii Lemmon's catchfly Perennial herb  
Silene menziesii Menzies' campion Perennial herb  
Silene scouleri Simple campion Perennial herb 1
Silene scouleri ssp. grandis Scouler's campion Perennial herb  
Silene scouleri ssp. scouleri Simple campion Perennial herb  
Silene serpentinicola Serpentine catchfly Perennial herb (rhizomatous) 2
Sisyrinchium bellum Blue eyed grass Perennial herb 62
Sisyrinchium californicum California golden eyed grass Perennial herb 41
Sisyrinchium douglasii var. douglasii Douglas' blue eyed grass Perennial herb 1
Sisyrinchium hitchcockii Hitchcock's blue eyed grass Perennial herb (rhizomatous)  
Smilacina racemosa Western false solomon's seal Perennial herb 19
Smilacina stellata Star flowered false solomon's seal Perennial herb 17
Solanum douglasii Douglas' nightshade Perennial herb 4
Solanum xanti Nightshade Perennial herb, Shrub 13
Solidago californica Oreja de liebre Perennial herb 27
Solidago canadensis Canada goldenrod Perennial herb 16
Solidago canadensis ssp. elongata Canada goldenrod Perennial herb 4
Solidago canadensis var. salebrosa Rough canada goldenrod Perennial herb 1
Solidago elongata West coast canada goldenrod Perennial herb 4
Solidago gigantea Smooth goldenrod Perennial herb (rhizomatous)  
Solidago lepida Western goldenrod Perennial herb (rhizomatous)  
Solidago lepida var. salebrosa Western goldenrod Perennial herb (rhizomatous) 1
Solidago sparsiflora Great basin goldenrod Perennial herb 4
Solidago spathulata Dune goldenrod Perennial herb 6
Solidago spathulata ssp. spathulata Coast goldenrod Perennial herb  
Solidago velutina Threenerve goldenrod Perennial herb 8
Solidago velutina ssp. californica Oreja de liebre Perennial herb 27
Sparganium angustifolium Narrow leaved bur reed Perennial herb 2
Sparganium emersum Emersed bur-reed Perennial herb 2
Sparganium erectum Simplestem bur reed Perennial herb  
Sparganium erectum ssp. stoloniferum Bur reed Perennial herb 2
Sparganium eurycarpum Broadfruit bur reed Perennial herb 5
Sparganium eurycarpum ssp. eurycarpum Bur reed Perennial herb 3
Sparganium eurycarpum var. eurycarpum Broadfruit bur reed Perennial herb  
Sparganium eurycarpum var. greenei Bur reed Perennial herb 2
Spartina foliosa Pacific cordgrass Perennial grass  
Spergularia macrotheca Sticky sand spurry Perennial herb 1
Spergularia macrotheca var. macrotheca Sticky sand spurry Perennial herb  
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  
Stachys ajugoides Hedge nettle Perennial herb 7
Stachys ajugoides var. ajugoides Ajuga hedge nettle Perennial herb 7
Stachys ajugoides var. rigida Hedge nettle Perennial herb  
Stachys bergii Berg's hedgenettle Perennial herb 1
Stachys bullata Southern hedge nettle Perennial herb 16
Stachys chamissonis Hedge nettle Perennial herb 7
Stachys mexicana Mexican hedgenettle Perennial herb 1
Stachys rigida Rough hedgenettle Perennial herb 4
Stachys rigida var. quercetorum Rough hedgenettle Perennial herb 1
Stachys rigida var. rigida Rough hedgenettle Perennial herb 1
Stellaria borealis Boreal starwort Perennial herb  
Stellaria borealis ssp. sitchana Boreal starwort Perennial herb  
Stellaria calycantha Northern bogwort Perennial herb  
Stellaria crispa Ruffled starwort Perennial herb  
Stellaria littoralis Shore chickweed Perennial herb  
Stellaria longipes Longstalk starwort Perennial herb  
Stellaria obtusa Obtuse starwort Perennial herb (rhizomatous)  
Stenanthium occidentale Western stenanthium Perennial herb  
Stipa cernua Nodding needle grass Perennial grass 23
Stipa lemmonii Lemmon's needle grass Perennial grass 2
Stipa lemmonii var. lemmonii Lemmon's needle grass Perennial grass  
Stipa lepida Foothill needle grass Perennial grass 24
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 1
Stipa occidentalis var. californica California needle grass Perennial grass  
Stipa occidentalis var. occidentalis Western needle grass Perennial grass  
Stipa pulchra Purple needle grass Perennial grass 42
Streptanthus barbatus Pacific jewelflower Perennial herb  
Streptopus amplexifolius Claspleaf twistedstalk Perennial herb 1
Streptopus amplexifolius var. americanus Twisted stalk Perennial herb  
Stuckenia filiformis Fineleaf pondweed Perennial herb (rhizomatous)  
Stuckenia filiformis ssp. alpina Fineleaf pondweed Perennial herb  
Stuckenia pectinata Sago pondweed Perennial herb (aquatic)  
Suksdorfia ranunculifolia Buttercup suksdorfia Perennial herb  
Swertia albicaulis Whitestem gentian Perennial herb  
Swertia albicaulis var. nitida Shining swertia Perennial herb  
Swertia radiata Giant frasera Perennial herb  
Swertia radiata var. radiata Elkweed Perennial herb  
Swertia umpquaensis Umpqua green gentian Perennial herb  
Symphyotrichum bracteolatum Eaton's aster Perennial herb 2
Symphyotrichum chilense Pacific aster Perennial herb 35
Symphyotrichum chilense var. chilense Pacific aster Perennial herb 14
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 lentum Suisun marsh aster Perennial herb (rhizomatous) 2
Symphyotrichum spathulatum Western mountain aster Perennial herb 1
Symphyotrichum spathulatum var. spathulatum Western mountain aster Perennial herb  
Synthyris cordata Serpentine snow queen Perennial herb  
Synthyris reniformis Snow queen Perennial herb 1
Synthyris reniformis var. cordata Snow queen Perennial herb  
Tanacetum bipinnatum Dune tansy Perennial herb 10
Tanacetum camphoratum Dune tansy Perennial herb 10
Taraxia ovata Sun cup Perennial herb 2
Tauschia glauca Glaucous tauschia Perennial herb  
Tauschia kelloggii Kellogg's tauschia Perennial herb  
Tellima grandiflora Fringe cups Perennial herb 29
Thalictrum fendleri Fendler's meadow rue Perennial herb 11
Thalictrum fendleri var. polycarpum Torrey's meadow rue Perennial herb 13
Thalictrum polycarpum Fendler's meadow-rue Perennial herb 13
Thermopsis gracilis Slender goldenbanner Perennial herb (rhizomatous) 1
Thermopsis gracilis var. gracilis Slender false lupine Perennial herb (rhizomatous) 1
Thermopsis macrophylla Santa ynez false lupine Perennial herb 2
Thermopsis macrophylla var. agnina Santa ynes false lupine Perennial herb (rhizomatous) 2
Thermopsis macrophylla var. macrophylla Common false lupine Perennial herb (rhizomatous) 2
Thermopsis macrophylla var. venosa Klamath false lupine Perennial herb (rhizomatous) 1
Thermopsis robusta Robust false lupine Perennial herb (rhizomatous)  
Thlaspi californicum Kneeland prairie pennycress Perennial herb  
Tiarella trifoliata Sugar scoop Perennial herb 8
Tiarella trifoliata var. trifoliata Trifoliate laceflower Perennial herb (rhizomatous)  
Tiarella trifoliata var. unifoliata Foamflower Perennial herb 4
Tofieldia occidentalis ssp. occidentalis Western tofieldia Perennial herb  
Tolmiea diplomenziesii Perennial herb 14
Tolmiea menziesii Pig a back plant Perennial herb 14
Torreyochloa pallida Pale false mannagrass Perennial grass (rhizomatous)  
Torreyochloa pallida var. pauciflora Mannagrass Perennial grass (rhizomatous)  
Toxicoscordion fremontii Fremont's star lily Perennial herb 5
Toxicoscordion micranthum Small flowered star lily Perennial herb  
Toxicoscordion venenosum Meadow deathcamas Perennial herb  
Toxicoscordion venenosum var. venenosum Meadow deathcamas Perennial herb  
Trautvetteria caroliniensis Carolina bugbane Perennial herb 1
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 ssp. arctica Arctic starflower Perennial herb  
Trientalis latifolia Western star flower Perennial herb 2
Trifolium breweri Brewer's clover Perennial herb  
Trifolium eriocephalum Woollyhead clover Perennial herb  
Trifolium eriocephalum ssp. eriocephalum Woollyhead clover Perennial herb  
Trifolium eriocephalum var. eriocephalum Hairy head clover Perennial herb  
Trifolium howellii Howell's clover Perennial herb  
Trifolium longipes Long stalked clover Perennial herb  
Trifolium longipes ssp. elmeri Elmer's clover Perennial herb  
Trifolium longipes ssp. hansenii Hansen's clover Perennial herb  
Trifolium longipes ssp. oreganum Oregon clover Perennial herb  
Trifolium longipes ssp. shastense Longstalk clover Perennial herb  
Trifolium longipes var. elmeri Elmer's 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 wormskioldii Cow clover Perennial herb 8
Triglochin concinna Arrow grass Perennial herb (aquatic)  
Triglochin maritima Seaside arrow grass Perennial herb (aquatic) 5
Triglochin striata Three ribbed arrow grass Perennial herb (aquatic)  
Trillium albidum Giant white wakerobin Perennial herb 3
Trillium angustipetalum Narrow petaled wakerobin Perennial herb 3
Trillium chloropetalum Giant wakerobin Perennial herb 7
Trillium ovatum Western wakerobin Perennial herb 10
Trillium ovatum ssp. oettingeri Salmon mtns. wakerobin Perennial herb  
Trillium ovatum ssp. ovatum Western wakerobin Perennial herb 2
Trillium rivale Siskiyou wakerobin Perennial herb 1
Trisetum canescens Nodding trisetum Perennial grass  
Trisetum cernuum Nodding oatgrass Perennial grass  
Trisetum cernuum var. projectum Nodding oatgrass Perennial grass  
Triteleia bridgesii Bridges' brodiaea Perennial herb 3
Triteleia hyacinthina Wild hyacinth Perennial herb 9
Triteleia ixioides Pretty face Perennial herb 7
Triteleia ixioides ssp. scabra Foothill triteleia Perennial herb 1
Triteleia laxa Ithuriel's spear Perennial herb 12
Triteleia peduncularis Marsh tritileia Perennial herb 4
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 11
Urtica dioica ssp. gracilis Nettle Perennial herb  
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 sitchensis Sitka valerian Perennial herb 1
Valeriana sitchensis ssp. scouleri Scouler's valerian Perennial herb  
Valeriana sitchensis ssp. sitchensis Sitka valerian Perennial herb 1
Vancouveria chrysantha Siskiyou inside out flower Perennial herb (rhizomatous) 2
Vancouveria hexandra Northern vancouveria Perennial herb 21
Vancouveria planipetala Inside out flower Perennial herb 4
Veratrum californicum California false hellebore Perennial herb 3
Veratrum californicum var. californicum California corn lily Perennial herb  
Veratrum insolitum Siskiyou false hellebore Perennial herb  
Veratrum viride American false hellebore Perennial herb 4
Verbena lasiostachys Western vervain Perennial herb 16
Verbena lasiostachys var. lasiostachys Vervain Perennial herb 17
Veronica americana American brooklime Perennial herb 6
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  
Vicia gigantea Giant vetch Perennial herb 3
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 bakeri Baker's violet Perennial herb 1
Viola beckwithii Great basin violet Perennial herb  
Viola cuneata Wedge leaf violet Perennial herb  
Viola glabella Stream violet Perennial herb 10
Viola hallii Hall's violet Perennial herb  
Viola lobata Moose horn violet Perennial herb  
Viola lobata ssp. integrifolia Delta leafed forest violet Perennial herb  
Viola lobata ssp. lobata Moose horn violet Perennial herb  
Viola macloskeyi Macloskey's violet Perennial herb 1
Viola ocellata Western heart's ease Perennial herb 1
Viola palustris Marsh violet Perennial herb (rhizomatous) 4
Viola pedunculata California golden violet Perennial herb 1
Viola praemorsa Astoria violet Perennial herb 1
Viola praemorsa ssp. linguifolia Astoria violet Perennial herb  
Viola praemorsa ssp. praemorsa 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. quercetorum Goosefoot yellow violet Perennial herb  
Viola sempervirens Redwood violet Perennial herb 7
Viola sheltonii Shelton's violet Perennial herb  
Wyethia angustifolia Narrow leaved mule ears Perennial herb 10
Wyethia longicaulis Humboldt county wyethia Perennial herb  
Xerophyllum tenax Beargrass Perennial herb 10
Zannichellia palustris Horned pondweed Perennial herb  
Zigadenus fremontii Fremont's death camas Perennial herb 5
Zigadenus micranthus Small flowered death camas Perennial herb  
Zigadenus micranthus var. micranthus Little flowered death camas Perennial herb  
Zigadenus venenosus Meadow deathcamas Perennial herb 2
Zigadenus venenosus var. venenosus Death camas Perennial herb  
Zostera marina Eel grass Perennial herb  
  Lifeform: Fern62 plants
Adiantum Xtracyi Fern 2
Adiantum aleuticum Five finger fern Fern 9
Adiantum capillus-veneris Venus hair Fern 14
Adiantum jordanii Adiantum Fern 4
Aspidotis californica California lace fern Fern 1
Aspidotis densa Lace fern Fern 1
Athyrium distentifolium Fern  
Athyrium distentifolium var. americanum American alpine lady fern Fern  
Athyrium filix-femina Common ladyfern Fern 19
Athyrium filix-femina ssp. cyclosorum Subarctic ladyfern Fern  
Athyrium filix-femina var. cyclosorum Western lady fern Fern 1
Azolla filiculoides Mosquito fern Fern  
Azolla mexicana Mexican mosquito fern Fern  
Azolla microphylla Mexican mosquito fern Fern  
Blechnum spicant Deer fern Fern 30
Botrychium multifidum Common grapefern Fern  
Cheilanthes gracillima Lace lip fern Fern 1
Cryptogramma acrostichoides American parsley fern Fern  
Cystopteris fragilis Brittle fern Fern 1
Dryopteris arguta Wood fern Fern 7
Dryopteris expansa Spreading wood fern Fern 4
Equisetum arvense Common horsetail Fern 6
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 2
Equisetum telmateia Giant horsetail Fern 3
Equisetum telmateia ssp. braunii Giant horsetail Fern 1
Equisetum telmateia var. braunii Giant horsetail Fern 1
Isoetes bolanderi Bolander's quillwort Fern  
Isoetes echinospora Spiny spored quillwort Fern  
Isoetes howellii Quillwort Fern  
Isoetes nuttallii Nuttall's quillwort Fern  
Lycopodiella inundata Bog club moss Fern (rhizomatous)  
Lycopodium clavatum Running pine Fern (rhizomatous)  
Myriopteris gracillima Lace lip fern Fern 1
Pellaea andromedifolia Coffee fern Fern 3
Pellaea brachyptera Sierra cliff brake Fern  
Pellaea mucronata Bird's foot fern Fern 2
Pellaea mucronata var. mucronata Bird's foot fern 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  
Polypodium californicum California polypody Fern 12
Polypodium calirhiza Licorice fern Fern 3
Polypodium glycyrrhiza Licorice fern Fern 8
Polypodium hesperium Western polypody Fern  
Polypodium scouleri Leather fern Fern 8
Polystichum californicum California sword fern Fern  
Polystichum imbricans Narrow leaved sword fern Fern 1
Polystichum imbricans ssp. curtum Cliff sword fern Fern  
Polystichum imbricans ssp. imbricans Rock sword fern Fern  
Polystichum lonchitis Holly fern Fern (rhizomatous)  
Polystichum munitum Western sword fern Fern 43
Polystichum scopulinum Mountain holly fern Fern  
Pteridium aquilinum Western brackenfern Fern 5
Pteridium aquilinum var. pubescens Western bracken fern Fern  
Selaginella oregana Oregon spike moss Fern (mosslike)  
Selaginella wallacei Wallace's spike moss Fern (mosslike)  
Struthiopteris spicant Deer fern Fern 30
Thelypteris nevadensis Sierra marsh fern Fern  
Woodwardia fimbriata Western chain fern Fern 31
  Lifeform: Shrub346 plants
Acer circinatum Vine maple Tree, Shrub 33
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  
Adenostoma fasciculatum Chamise Tree, Shrub 15
Alnus incana Gray alder Tree, Shrub 6
Alnus incana ssp. tenuifolia Creek alder Tree, Shrub 9
Alnus rubra Red alder Tree, Shrub 29
Alnus viridis Green alder Tree, Shrub 1
Alnus viridis ssp. sinuata Sitka alder Tree, Shrub 10
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
Arctostaphylos Xcinerea Del norte manzanita Shrub  
Arctostaphylos Xknightii Hybrid manzanita Shrub  
Arctostaphylos Xmedia Hybrid manzanita Tree, Shrub 1
Arctostaphylos Xparvifolia Hybrid manzanita Shrub  
Arctostaphylos bakeri Baker's manzanita Shrub 20
Arctostaphylos bakeri ssp. bakeri Baker's manzanita Shrub  
Arctostaphylos canescens Hoary manzanita Shrub 1
Arctostaphylos canescens ssp. canescens Hoary manzanita Shrub  
Arctostaphylos canescens ssp. sonomensis Sonoma manzanita Shrub 1
Arctostaphylos columbiana Redwood manzanita Tree, Shrub 5
Arctostaphylos densiflora Vine hill manzanita Shrub 25
Arctostaphylos glandulosa Eastwood manzanita Shrub 6
Arctostaphylos glandulosa f. cushingiana Cushing's manzanita Shrub  
Arctostaphylos glandulosa ssp. cushingiana Cushing manzanita Shrub  
Arctostaphylos glandulosa ssp. glandulosa Eastwood manzanita Shrub 3
Arctostaphylos glandulosa ssp. zacaensis Zaca lake manzanita Shrub 3
Arctostaphylos hispidula Howell's manzanita Shrub  
Arctostaphylos hookeri Raven's manzanita Tree, Shrub 18
Arctostaphylos hookeri ssp. montana Mt. tamalpais manzanita Shrub  
Arctostaphylos manzanita Common manzanita Shrub 26
Arctostaphylos manzanita ssp. elegans Konocti manzanita Shrub  
Arctostaphylos manzanita ssp. glaucescens White leaf common manzanita Shrub  
Arctostaphylos manzanita ssp. manzanita Common manzanita Shrub 1
Arctostaphylos montana Mt. tamalpais manzanita Shrub  
Arctostaphylos montana ssp. montana Mt. Tamalpais manzanita Shrub  
Arctostaphylos nevadensis Pine mat manzanita Shrub 6
Arctostaphylos nevadensis ssp. knightii Knight's manzanita Shrub  
Arctostaphylos nevadensis ssp. nevadensis Pine-mat manzanita Shrub  
Arctostaphylos patula Green leaf manzanita Shrub 14
Arctostaphylos pungens Mexican manzanita Tree, Shrub 4
Arctostaphylos stanfordiana Stanford's manzanita Tree, Shrub 4
Arctostaphylos stanfordiana ssp. stanfordiana Stanford manzanita Tree, Shrub  
Arctostaphylos tomentosa Woolly leaf manzanita Shrub 7
Arctostaphylos uva-ursi Kinnikinnick Shrub 48
Arctostaphylos uva-ursi f. coactilis Southern kinnikinnick Shrub 30
Arctostaphylos viscida Whiteleaf manzanita Tree, Shrub 6
Arctostaphylos viscida ssp. viscida Smooth white leaf manzanita Tree, Shrub 2
Atriplex confertifolia Spiny saltbush Shrub 8
Baccharis pilularis Coyote brush Shrub 57
Baccharis pilularis ssp. consanguinea Coyote brush Shrub 49
Baccharis pilularis ssp. pilularis Coyote brush Shrub 5
Berberis aquifolium Mountain grape Shrub 46
Berberis aquifolium var. aquifolium Oregon grape Shrub 36
Berberis aquifolium var. repens Creeping oregon grape Shrub 30
Berberis nervosa Oregon grape Shrub 14
Berberis pinnata Shiny leaf mahonia Shrub 8
Berberis pinnata ssp. pinnata Coast barberry Shrub  
Betula occidentalis Water birch Tree, Shrub 22
Cassiope mertensiana Western moss heather Shrub 1
Ceanothus Xarcuatus Shrub  
Ceanothus arcuatus Arching ceanothus Tree, Shrub  
Ceanothus cordulatus Snow bush Shrub 7
Ceanothus cuneatus Buck brush Shrub 24
Ceanothus cuneatus var. cuneatus Buck brush Shrub 3
Ceanothus foliosus Wavy leaved ceanothus Shrub 6
Ceanothus foliosus var. foliosus Wavy leaved ceanothus Shrub  
Ceanothus foliosus var. vineatus Vine hill ceanothus Shrub 1
Ceanothus gloriosus Glory mat Shrub 28
Ceanothus gloriosus var. exaltatus Glory brush Shrub 7
Ceanothus incanus Coast whitethorn Shrub 1
Ceanothus integerrimus Deer brush Shrub 15
Ceanothus integerrimus var. integerrimus Deer brush Shrub  
Ceanothus integerrimus var. macrothyrsus Deerbrush Shrub 15
Ceanothus lemmonii Lemmon's ceanothus Shrub 3
Ceanothus leucodermis Chaparral whitethorn Shrub 8
Ceanothus oliganthus Hairy ceanothus Shrub 5
Ceanothus oliganthus var. oliganthus Hairy ceanothus Shrub 5
Ceanothus oliganthus var. sorediatus Jim brush Shrub  
Ceanothus papillosus Wartleaf ceanothus Shrub 13
Ceanothus parryi Parry ceanothus Shrub  
Ceanothus prostratus Mahala mats Shrub 11
Ceanothus pumilus Siskiyou mat Shrub  
Ceanothus sanguineus Red stem ceanothus Shrub 5
Ceanothus thyrsiflorus Blueblossom Tree, Shrub 42
Ceanothus thyrsiflorus var. repens Creeping blueblossom Tree, Shrub 31
Ceanothus thyrsiflorus var. thyrsiflorus Blue blossom Tree, Shrub 8
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
Cercis occidentalis Western redbud Tree, Shrub 66
Cercocarpus betuloides Birch leaf mountain mahogany Tree, Shrub 45
Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany Tree, Shrub 2
Chrysolepis chrysophylla Golden chinquapin Tree, Shrub 4
Chrysolepis chrysophylla var. chrysophylla Golden chinquapin Tree, Shrub 1
Chrysolepis chrysophylla var. minor Bush chinquapin Tree, Shrub  
Chrysolepis sempervirens Sierra chinquapin Shrub 2
Chrysothamnus nauseosus Common rabbitbrush Shrub 25
Chrysothamnus nauseosus ssp. albicaulis Rubber rabbitbrush Shrub  
Cornus glabrata Brown dogwood Tree, Shrub 10
Cornus nuttallii Mountain dogwood Shrub 25
Cornus sericea American dogwood Shrub 43
Cornus sericea ssp. occidentalis Western dogwood Shrub 9
Cornus sericea ssp. sericea Red osier dogwood Shrub 33
Corylus cornuta Beaked hazelnut Shrub 19
Corylus cornuta ssp. californica Beaked hazelnut Shrub 16
Corylus cornuta var. californica California hazelnut Shrub 9
Crataegus columbiana Columbia hawthorn Tree, Shrub 11
Crataegus douglasii Douglas' hawthorn Tree, Shrub 12
Crataegus gaylussacia Klamath hawthorn Tree, Shrub 3
Crataegus suksdorfii Klamath hawthorn Tree, Shrub 3
Diplacus aurantiacus Sticky monkeyflower Shrub 49
Empetrum nigrum Black crowberry Shrub 1
Empetrum nigrum ssp. hermaphroditum Black crowberry Shrub 1
Ericameria arborescens Golden fleece Shrub 3
Ericameria bloomeri Bloomer's goldenbrush Shrub  
Ericameria greenei Greene's goldenbush Shrub 1
Ericameria nauseosa Rubber rabbitbrush Shrub 25
Ericameria nauseosa var. speciosa Rubber rabbitbrush Shrub  
Eriodictyon californicum Yerba santa Shrub 11
Eriodictyon crassifolium Thick leaved yerba santa Shrub 8
Eriogonum nudum Naked buckwheat Shrub 15
Eriogonum nudum var. auriculatum Nude buckwheat Shrub 1
Eriogonum nudum var. nudum Nude buckwheat Shrub 1
Eriogonum nudum var. oblongifolium Oblong leaved buckwheat Shrub 1
Eriophyllum confertiflorum Yellow yarrow Shrub 22
Euonymus occidentalis Western burning bush Tree, Shrub 7
Euonymus occidentalis var. occidentalis Western burning bush Tree, Shrub 1
Frangula californica California coffeeberry Shrub 50
Frangula californica ssp. californica California coffeeberry Shrub 43
Frangula californica ssp. occidentalis Wetern california coffeeberry Shrub 2
Frangula californica ssp. tomentella Hoary coffeeberry Shrub 13
Frangula purshiana Cascara sagrada Tree, Shrub 19
Frangula purshiana ssp. purshiana Cascara sagrada Shrub 1
Frangula rubra Red buckthorn Shrub 3
Frangula rubra ssp. rubra Red buckthorn Shrub 3
Galium porrigens Climbing bedstraw Vine, Shrub  
Galium porrigens var. porrigens Graceful bedstraw Vine, Shrub  
Garrya buxifolia Boxleaf silk tassel Shrub  
Garrya elliptica Coast silk tassel Tree, Shrub 31
Garrya flavescens Ashy silk tassel Shrub 1
Garrya fremontii Fremont's silk tassel Shrub 5
Gaultheria ovatifolia Western wintergreen Shrub 1
Gaultheria shallon Salal Shrub 25
Heteromeles arbutifolia Toyon Shrub 63
Holodiscus discolor Oceanspray Shrub 41
Holodiscus discolor var. discolor Oceanspray Shrub 2
Holodiscus discolor var. glabrescens Rock spiraea Shrub 40
Holodiscus microphyllus Oceanspray Shrub 40
Holodiscus microphyllus var. glabrescens Rock spiraea Shrub 40
Holodiscus microphyllus var. microphyllus Little leaf creambush Shrub 40
Isocoma menziesii White flowered goldenbush Shrub 15
Isocoma menziesii var. vernonioides Green leaved dune goldenbush Shrub  
Juniperus communis Common juniper Shrub 14
Juniperus communis var. depressa Common juniper Shrub 2
Juniperus communis var. jackii Common juniper Shrub 2
Juniperus communis var. saxatilis Common juniper Shrub 2
Kalmia polifolia Mountain laurel Shrub 2
Kalmia polifolia ssp. microphylla Bog laurel Shrub 2
Keckiella breviflora Gaping keckiella Shrub 4
Keckiella corymbosa Red beardtongue Shrub 2
Keckiella lemmonii Lemmon's keckiella Shrub  
Ledum glandulosum Western labrador tea Shrub 1
Lithocarpus densiflorus Tanbark oak Tree, Shrub 14
Lithocarpus densiflorus var. densiflorus Tanoak Tree, Shrub 3
Lithocarpus densiflorus var. echinoides Tanoak shrub Tree, Shrub 4
Lonicera ciliosa Orange honeysuckle Vine, Shrub 10
Lonicera conjugialis Purpleflower honeysuckle Shrub 3
Lonicera hispidula Pink honeysuckle Vine, Shrub 33
Lonicera hispidula var. vacillans Hairy honeysuckle Vine, Shrub 33
Lonicera interrupta Chaparral honeysuckle Vine, Shrub 5
Lonicera involucrata Coast twinberry Shrub 42
Lonicera involucrata var. ledebourii Coast twinberry Shrub 2
Lupinus albifrons Silver bush lupine Shrub 34
Lupinus albifrons var. albifrons Silver bush lupine Shrub 5
Lupinus albifrons var. collinus Silver bush lupine Shrub 8
Lupinus arboreus Coastal bush lupine Shrub 27
Lupinus chamissonis Beach blue lupine Shrub 16
Lupinus littoralis var. variicolor Shrub 5
Lupinus longifolius Long leaf bush lupine Shrub 5
Lupinus variicolor Varied lupine Shrub 5
Malus fusca Oregon crab apple Tree, Shrub 13
Menziesia ferruginea Mock azalea Shrub 3
Mimulus aurantiacus Sticky monkeyflower Shrub 55
Mimulus aurantiacus var. aurantiacus Sticky monkeyflower Shrub 4
Mimulus puniceus Red bush monkeyflower Shrub 52
Monardella follettii Follett's monardella Shrub 1
Morella californica California wax myrtle Shrub 54
Myrica californica Wax myrtle Shrub 54
Notholithocarpus densiflorus Tanoak Tree, Shrub 12
Notholithocarpus densiflorus var. densiflorus Tanoak Tree, Shrub 3
Notholithocarpus densiflorus var. echinoides Tanoak shrub Tree, Shrub 4
Oemleria cerasiformis Oso berry Shrub 18
Paxistima myrsinites Oregon boxwood Shrub 5
Philadelphus lewisii Wild mock orange Shrub 47
Phoradendron juniperinum Mistletoe Shrub (parasitic)  
Phoradendron leucarpum American mistletoe Shrub (parasitic)  
Phoradendron leucarpum ssp. macrophyllum Big leaf mistletoe Shrub (parasitic)  
Phoradendron leucarpum ssp. tomentosum Mistletoe Shrub (parasitic)  
Phoradendron libocedri Incense cedar 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 empetriformis Klamath mountain heather Shrub 4
Physocarpus capitatus Ninebark Shrub 40
Prunus emarginata Bitter cherry Tree, Shrub 15
Prunus subcordata Sierra 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
Quercus dumosa Scrub oak Shrub 10
Quercus durata Leather oak Shrub 9
Quercus sadleriana Sadler oak Shrub 4
Quercus vacciniifolia Huckleberry oak Shrub 5
Quercus wislizeni Interior live oak Tree, Shrub 22
Quercus wislizeni var. wislizeni Interior live oak Tree, Shrub 3
Rhamnus alnifolia Alder leaved coffeeberry Shrub 1
Rhamnus californica Coffee berry Shrub 61
Rhamnus californica ssp. californica California coffeeberry Shrub 10
Rhamnus californica ssp. occidentalis Wetern california coffeeberry Shrub 2
Rhamnus crocea Redberry Shrub 18
Rhamnus ilicifolia Evergreen buckthorn Shrub 17
Rhamnus purshiana Cascara sagrada Tree, Shrub 17
Rhamnus rubra Sierra coffeeberry Shrub 3
Rhamnus tomentella Hoary coffeeberry Shrub 10
Rhamnus tomentella ssp. tomentella Chaparral coffee berry Shrub 6
Rhododendron columbianum Western labrador tea Shrub 1
Rhododendron macrophyllum California rose bay Shrub 9
Rhododendron occidentale Western azalea Tree, Shrub 22
Rhododendron occidentale var. paludosum Western azalea Tree, Shrub  
Rhus aromatica Fragrant sumac Shrub 32
Rhus trilobata Skunkbrush Shrub 32
Rhus trilobata var. simplicifolia Single leaf skunkbrush Shrub 7
Ribes binominatum Trailing gooseberry Shrub  
Ribes bracteosum Stink currant Shrub 6
Ribes cereum Wax currant Shrub 16
Ribes divaricatum Spreading gooseberry Shrub 9
Ribes divaricatum var. pubiflorum Spreading gooseberry Shrub 2
Ribes inerme White stemmed gooseberry Shrub 2
Ribes inerme var. klamathense Klamath gooseberry Shrub  
Ribes lacustre Swamp currant Shrub 6
Ribes laxiflorum Trailing black currant Shrub 1
Ribes lobbii Gummy gooseberry Shrub 2
Ribes malvaceum Chaparral currant Shrub 23
Ribes marshallii Marshall's gooseberry Shrub  
Ribes menziesii Gooseberry Shrub 6
Ribes menziesii var. hystrix Canyon gooseberry Shrub 1
Ribes menziesii var. menziesii Canyon gooseberry Shrub 1
Ribes nevadense Mountain pink currant Shrub 11
Ribes roezlii Sierra gooseberry Shrub 10
Ribes roezlii var. amictum Sierra gooseberry Shrub  
Ribes roezlii var. cruentum Spiny fruited gooseberry Shrub 3
Ribes roezlii var. roezlii Sierra gooseberry Shrub 3
Ribes sanguineum Flowering currant Shrub 54
Ribes sanguineum var. glutinosum Flowering currant Shrub 25
Ribes sanguineum var. sanguineum Red flowering currant Shrub 7
Ribes velutinum Desert gooseberry Shrub  
Ribes victoris Victor's gooseberry Shrub  
Ribes viscosissimum Sticky currant Shrub  
Ribes viscosissimum var. hallii Hall's sticky currant Shrub  
Rosa californica California wild rose Shrub 52
Rosa gymnocarpa Wood rose Shrub 21
Rosa gymnocarpa var. gymnocarpa Wood rose Shrub 2
Rosa gymnocarpa var. serpentina Gasquet rose Shrub  
Rosa nutkana Nootka rose Shrub 17
Rosa nutkana ssp. macdougalii Nootka rose Shrub  
Rosa nutkana ssp. nutkana Nootka rose Shrub  
Rosa nutkana var. muriculata Nootka rose Shrub  
Rosa nutkana var. nutkana Nootka rose Shrub  
Rosa nutkana var. setosa Nootka rose Shrub  
Rosa pinetorum Pine rose Shrub 1
Rosa pisocarpa Cluster rose Shrub 10
Rosa pisocarpa ssp. pisocarpa Cluster or pea rose Shrub  
Rosa spithamea Sonoma rose Shrub 1
Rubus glaucifolius Wax leaf raspberry Shrub  
Rubus lasiococcus Rough fruit berry Vine, Shrub  
Rubus leucodermis White bark raspberry Shrub 8
Rubus leucodermis var. leucodermis Whitebark raspberry Shrub 8
Rubus parviflorus Thimbleberry Vine, Shrub 37
Rubus parviflorus var. parviflorus Thimbleberry Vine, Shrub 1
Rubus parviflorus var. velutinus Thimbleberry Vine, Shrub 38
Rubus spectabilis Salmon berry Shrub 22
Rubus spectabilis var. franciscanus Salmon berry Shrub 22
Rubus ursinus California blackberry Vine, Shrub 37
Salix breweri Serpentine willow Shrub 1
Salix eastwoodiae Mountain willow Shrub 1
Salix exigua Narrowleaf willow Tree, Shrub 26
Salix exigua var. exigua Narrowleaf willow Tree, Shrub 2
Salix exigua var. hindsiana Sandbar willow Tree, Shrub 25
Salix hindsiana Sandbar willow Tree, Shrub 25
Salix hookeriana Coastal willow Tree, Shrub 10
Salix jepsonii Jepson's willow Shrub  
Salix lasiandra var. caudata Shining willow Shrub  
Salix lasiolepis Arroyo willow Tree, Shrub 23
Salix lasiolepis var. bigelovii Arroyo willow Tree, Shrub 23
Salix lucida Shining willow Tree, Shrub 19
Salix lucida ssp. caudata Shining willow Shrub  
Salix melanopsis Dusky willow Tree, Shrub 4
Salix scouleriana Scouler willow Tree, Shrub 17
Salix sessilifolia Northern sandbar willow Shrub 4
Salix sitchensis Coulter willow Tree, Shrub 14
Salix tracyi Tracy's willow Tree, Shrub  
Salvia mellifera Black sage Shrub 44
Sambucus mexicana Elderberry Tree, Shrub 40
Sambucus nigra Black elderberry Shrub 13
Sambucus nigra ssp. caerulea Blue elderberry Shrub 60
Sambucus racemosa Red elderberry Shrub 31
Sambucus racemosa var. microbotrys Red elderberry Shrub 3
Sambucus racemosa var. racemosa Red elderberry Shrub 5
Senecio flaccidus Shrubby ragwort Shrub 6
Solanum parishii Parish's purple nightshade Shrub 3
Solanum umbelliferum Blue witch Shrub 10
Sorbus californica California mountain ash Shrub 1
Sorbus scopulina Mountain ash Shrub 7
Sorbus scopulina var. cascadensis Cascade mountain ash Shrub 7
Sorbus scopulina var. scopulina Mountain ash Shrub  
Sorbus sitchensis Western mountain ash Tree, Shrub 5
Sorbus sitchensis var. sitchensis Sitka mountain ash Tree, Shrub  
Spiraea densiflora Dense flowered spiraea Shrub 17
Spiraea densiflora ssp. splendens Mountain spirea Shrub 5
Spiraea douglasii Douglas spiraea Shrub 26
Spiraea splendens Rose meadowsweet Shrub 17
Symphoricarpos acutus Creeping snowberry Shrub 17
Symphoricarpos albus Common snowberry Shrub 42
Symphoricarpos albus var. laevigatus Snowberry Shrub 12
Symphoricarpos hesperius Creeping snowberry Shrub 17
Symphoricarpos mollis Snowberry Shrub 18
Toxicodendron diversilobum Poison oak Vine, Shrub 7
Vaccinium cespitosum Dwarf bilberry Shrub 2
Vaccinium membranaceum Thin leaf huckleberry Shrub 5
Vaccinium ovatum Evergreen huckleberry Shrub 38
Vaccinium parvifolium Red huckleberry Shrub 11
Vaccinium scoparium Little leaf huckleberry Shrub 1
Vaccinium uliginosum Blueberry Shrub 2
Vaccinium uliginosum ssp. occidentale Western blueberry Shrub 2
Vaccinium uliginosum ssp. uliginosum European blueberry Shrub  
Viburnum ellipticum Common viburnum Shrub 5
Vitis californica California wild grape Vine, Shrub 39
Whipplea modesta Modesty Vine, Shrub 7
  Lifeform: Tree67 plants
Abies Xshastensis Shasta red fir Tree  
Abies concolor White fir Tree 22
Abies concolor var. lowiana California white fir Tree  
Abies grandis Grand fir Tree 16
Abies magnifica Magnificant silver fir Tree 3
Abies magnifica var. magnifica California red fir Tree  
Abies magnifica var. shastensis Shasta red fir Tree  
Abies procera Noble fir Tree 14
Acer macrophyllum Bigleaf maple Tree 52
Acer negundo Boxelder Tree 30
Acer negundo var. californicum California box elder Tree 30
Aesculus californica Buckeye Tree 46
Alnus rhombifolia White alder Tree 38
Arbutus menziesii Madrono Tree 35
Callitropsis macrocarpa Monterey cypress Tree 5
Callitropsis nootkatensis Alaska cedar Tree 10
Calocedrus decurrens Incense cedar Tree 40
Chamaecyparis lawsoniana Port orford cedar Tree 14
Cornus sessilis Western cornelian cherry Tree 6
Cupressus lawsoniana Port orford cedar Tree 14
Cupressus macrocarpa Monterey cypress Tree 24
Cupressus nootkatensis Alaska cedar Tree 1
Fraxinus latifolia Oregon ash Tree 29
Hesperocyparis macrocarpa Monterey cypress Tree 24
Juniperus occidentalis Western juniper Tree 2
Picea sitchensis Sitka spruce Tree 18
Pinus attenuata Knobcone pine Tree 6
Pinus contorta Lodgepole pine Tree 30
Pinus contorta ssp. bolanderi Bolander's beach pine Tree 1
Pinus contorta ssp. contorta Shore pine Tree 12
Pinus jeffreyi Jeffrey pine Tree 17
Pinus lambertiana Sugar pine Tree 13
Pinus monticola Western white pine Tree 10
Pinus muricata Bishop pine Tree 12
Pinus ponderosa Yellow pine Tree 29
Pinus ponderosa var. ponderosa North plateau ponderosa pine Tree 2
Pinus radiata Monterey pine Tree 8
Pinus sabiniana Gray pine Tree 28
Platanus racemosa California sycamore Tree 36
Populus balsamifera ssp. trichocarpa Black cottonwood Tree 27
Populus fremontii Fremont cottonwood Tree 32
Populus fremontii ssp. fremontii Cottonwood Tree 4
Populus trichocarpa Black cottonwood Tree 27
Pseudotsuga menziesii Douglas fir Tree 31
Pseudotsuga menziesii var. menziesii Douglas fir Tree 4
Quercus Xmorehus Oracle oak Tree 1
Quercus agrifolia Coast live oak Tree 52
Quercus chrysolepis Gold cup live oak Tree 24
Quercus chrysolepis var. nana Canyon live oak Tree 25
Quercus douglasii Blue oak Tree 26
Quercus garryana Oregon oak Tree 24
Quercus garryana var. breweri Oregon oak Tree 2
Quercus garryana var. garryana Oregon oak Tree 1
Quercus kelloggii California black oak Tree 24
Quercus parvula Santa cruz island oak Tree 1
Quercus parvula var. shrevei Shreve's oak Tree 1
Salix laevigata Polished willow Tree 17
Salix lasiandra Pacific willow Tree 20
Salix lasiandra var. lasiandra Pacific willow Tree 6
Salix lucida ssp. lasiandra Shining willow Tree 6
Sequoia sempervirens Coast redwood Tree 34
Sequoiadendron giganteum Redwood Tree 19
Taxus brevifolia California yew Tree 11
Thuja plicata Western red cedar Tree 22
Tsuga heterophylla Western hemlock Tree 14
Tsuga mertensiana Patton spruce Tree 13
Umbellularia californica California bay Tree 40
 
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive.
NB: found in Humboldt 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.