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Criteria:   found in Trinity County  •   is native  •  group by lifeform
4031  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual954 plants
Achyrachaena mollis Blow wives Annual herb 2
Acmispon americanus American bird's foot trefoil Annual herb 7
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 wrangelianus Chilean trefoil Annual herb  
Agoseris heterophylla Mountain dandelion Annual herb  
Agoseris heterophylla var. crenulata Annual agoseris Annual herb  
Agoseris heterophylla var. heterophylla Annual agoseris Annual herb  
Agoseris heterophylla var. turgida Annual agoseris Annual herb  
Aliciella latifolia ssp. imperialis Broadleaf gilia Annual herb  
Allophyllum divaricatum Purple false gilia Annual herb  
Allophyllum gilioides Dense false gilia Annual herb  
Allophyllum gilioides ssp. violaceum Dense false gilia Annual herb  
Amaranthus powellii ssp. bouchonii Annual herb  
Amaranthus powellii ssp. powellii Powell's amaranth Annual herb  
Amsinckia intermedia Common 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  
Amsinckia menziesii var. menziesii Small flowered fiddleneck Annual herb 1
Amsinckia vernicosa var. furcata Forked fiddleneck Annual herb 2
Amsinckia vernicosa var. vernicosa Green fiddleneck Annual herb  
Anagallis minima Chaffweed Annual herb  
Ancistrocarphus filagineus Woolly fishhooks Annual herb  
Androsace occidentalis var. simplex Western rock jasmine Annual herb  
Androsace septentrionalis ssp. subumbellata Pygmy rock jasmine Annual, Perennial herb 1
Antirrhinum cornutum Spurred snapdragon Annual herb  
Antirrhinum cyathiferum Deep canyon snapdragon Annual herb  
Antirrhinum vexillo-calyculatum Brewer's snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. breweri Brewer's sail flower snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. intermedium Intermediate sail flower snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. vexillo-calyculatum Wiry snapdragon Annual herb  
Antirrhinum vexillocalyculatum Wiry snapdragon Annual herb  
Antirrhinum vexillocalyculatum ssp. breweri Wiry snapdragon Annual herb  
Aphyllon epigalium Annual herb  
Argemone munita Prickly poppy Annual, Perennial herb 4
Arida arizonica Silver lake daisy Annual herb  
Aster frondosus Short rayed alkali aster Annual herb  
Astragalus clarianus Clara hunt's milk vetch Annual herb  
Astragalus gambelianus Loco weed Annual herb  
Astragalus gambelianus var. elmeri Elmer's dwarf milk vetch Annual herb  
Astragalus lentiginosus var. platyphyllidius Volcanic milk vetch Annual, Perennial herb  
Astragalus rattanii Rattan's milk vetch Annual herb  
Athysanus pusillus Dwarf athysanus Annual herb  
Atriplex argentea var. mohavensis Mojave silverscale Annual herb 2
Atriplex covillei Coville's orach Annual herb  
Atriplex erecticaulis Erectstem saltbush Annual herb  
Atriplex joaquinana San joaquin spearscale Annual herb  
Atriplex joaquiniana San joaquin orache Annual herb  
Atriplex longitrichoma Long hair silverscale Annual herb  
Atriplex patula var. obtusa Spear oracle Annual herb  
Atriplex patula var. patula Spear oracle Annual herb 3
Atriplex phyllostegia Leafcover saltweed Annual herb 1
Atriplex subspicata Spike saltbush Annual herb  
Atriplex vallicola Lost hills crownscale Annual herb  
Beckmannia syzigachne American sloughgrass Annual grass 5
Bidens frondosa Sticktight Annual herb  
Blepharipappus scaber Blepharipappus Annual herb  
Blepharizonia plumosa ssp. plumosa Big tarplant Annual herb  
Blepharizonia plumosa ssp. viscida Glandular big tarweed Annual herb  
Boerhavia intermedia Fivewing spiderling Annual herb  
Bromus laevipes Narrow flowered brome Annual, Perennial grass 4
Bromus orcuttianus Orcutt's brome grass Annual grass 1
Bromus vulgaris Common brome Annual grass 1
Calandrinia ambigua Desert calendrinia Annual herb  
Calandrinia ciliata Redmaids Annual herb 6
Calandrinia maritima Seaside calandrinia Annual herb  
Calandrinia menziesii Red maids Annual herb 6
Calibrachoa parviflora Seaside petunia Annual herb  
Callitriche verna Water starwort Annual herb  
Calycadenia fremontii Fremont's calycadenia Annual herb  
Calycadenia micrantha Small flowered calycadenia Annual herb  
Calycadenia truncata Rosin weed Annual herb  
Calycadenia truncata ssp. microcephala Oregon western rosinweed Annual herb  
Calyptridium parryi var. arizonicum Parry's pussypaws Annual herb  
Calyptridium umbellatum Pussy toes Annual, Perennial herb 3
Calyptridium umbellatum var. caudiciferum Alpine cistanthe Annual, Perennial herb 3
Calyptridium umbellatum var. umbellatum Mt. hood pussypaws Annual, Perennial herb  
Camissonia andina Plateau evening primrose Annual herb  
Camissonia arenaria Mousetail evening primrose Annual, Perennial herb  
Camissonia bistorta California sun cup Annual herb 5
Camissonia boothii Booth's sun cup Annual herb  
Camissonia boothii ssp. alyssoides Pine creek evening primrose Annual herb  
Camissonia boothii ssp. boothii Booth's evening primrose Annual herb  
Camissonia boothii ssp. condensata Clustered booth's desert primrose Annual herb  
Camissonia boothii ssp. decorticans Redish shredding primrose Annual herb  
Camissonia boothii ssp. desertorum Desert shredding primrose Annual herb  
Camissonia boothii ssp. intermedia Desert shredding primrose Annual herb  
Camissonia brevipes Yellov cups Annual herb  
Camissonia brevipes ssp. arizonica Arizona sun cup Annual herb  
Camissonia brevipes ssp. brevipes Golden sun cup Annual herb  
Camissonia brevipes ssp. pallidula Pale sun cup Annual herb  
Camissonia californica California primrose Annual herb 1
Camissonia cardiophylla ssp. robusta Big heartleaf sun cup Annual, Perennial herb  
Camissonia chamaenerioides Long fruit suncup Annual herb  
Camissonia claviformis Brown eyed primrose Annual herb  
Camissonia claviformis ssp. aurantiaca Pinnate leaved primrose Annual herb  
Camissonia claviformis ssp. claviformis Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. cruciformis Cross flowered clavate fruited primrose Annual herb  
Camissonia claviformis ssp. funerea Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. integrior Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. lancifolia Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. peirsonii Peirson's clavate fruited primrose Annual herb  
Camissonia claviformis ssp. yumae Yuma clavate fruited primrose Annual herb  
Camissonia confusa San bernardino sun cup Annual herb  
Camissonia contorta Contorted sun cup Annual herb  
Camissonia graciliflora Hill sun cup Annual herb  
Camissonia guadalupensis ssp. clementina San clemente island evening primrose Annual herb  
Camissonia hardhamiae Hardham's evening primrose Annual herb  
Camissonia heterochroma Shockley's evening primrose Annual herb  
Camissonia hirtella Hairy sun cups Annual herb  
Camissonia ignota Jurupa hills sun cups Annual herb 1
Camissonia intermedia Intermediate sun cups Annual herb  
Camissonia lewisii Lewis's evening primrose Annual herb  
Camissonia luciae Santa lucia sun cup Annual herb  
Camissonia micrantha Spencer primrose Annual herb 2
Camissonia minor Nelson's evening primrose Annual herb  
Camissonia munzii Munz's evening primrose Annual herb  
Camissonia pallida Pale yellow sun cup Annual herb 2
Camissonia pallida ssp. hallii Hall's sun cup Annual herb  
Camissonia pallida ssp. pallida Pale sun cup Annual herb  
Camissonia palmeri Palmer's sun cup Annual herb  
Camissonia pterosperma Wing fruit sun cup Annual herb  
Camissonia refracta Narrow leaved primrose Annual herb  
Camissonia robusta Robust sun cup Annual herb  
Camissonia walkeri ssp. tortilis Walker's sun cup Annual, Perennial herb  
Cardamine oligosperma Idaho bittercress Annual, Perennial herb  
Castilleja attenuata Narrow leaved 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 lacera Foothill 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 amplexicaulis var. amplexicaulis Clasping leaved caulanthus Annual herb  
Caulanthus coulteri var. coulteri Coulter's jewel flower Annual herb  
Caulanthus coulteri var. lemmonii Lemmon's jewel flower Annual herb  
Caulanthus heterophyllus var. heterophyllus Slender pod jewelflower Annual herb  
Caulanthus lasiophyllus California mustard Annual herb  
Cenchrus spinifex Coastal sandbur Annual grass  
Centaurium davyi Davy's centaury Annual herb 1
Centaurium exaltatum Cancha lagua Annual herb  
Centaurium muehlenbergii Monterey centaury Annual herb 2
Centaurium trichanthum Alkali centaury Annual herb  
Centaurium venustum Beautiful centaury Annual herb  
Centromadia pungens ssp. maritima Common tarweed Annual herb  
Centromadia pungens ssp. septentrionalis Common tarweed Annual herb  
Centunculus minimus False pimpernel Annual herb  
Chaenactis douglasii Chaenactis Annual, Perennial herb  
Chaenactis douglasii var. douglasii Dusty maidens Annual, Perennial herb  
Chaenactis glabriuscula Common yellow chaenactis Annual herb 3
Chaenactis glabriuscula var. heterocarpha Variable fruited yellow chaenactis Annual herb  
Chaenactis glabriuscula var. megacephala Big headed yellow chaenactis Annual herb 1
Chamaesyce abramsiana Abrams' prostrate spurge Annual herb  
Chamaesyce glyptosperma Rib seed spurge Annual herb  
Chamaesyce hooveri Hoover's spurge Annual herb  
Chamaesyce micromera Desert spurge Annual herb  
Chamaesyce ocellata Contura creek spurge Annual herb  
Chamaesyce ocellata ssp. arenicola Sand spurge Annual herb  
Chamaesyce ocellata ssp. ocellata Contura creek sandmat Annual herb  
Chamaesyce ocellata ssp. rattanii Stony creek spurge Annual herb  
Chamaesyce parryi Parry's spurge Annual herb  
Chamaesyce platysperma Flat seeded spurge Annual herb  
Chamaesyce revoluta Rolled leaf spurge Annual herb  
Chamaesyce serpens Creeping spurge Annual herb  
Chamaesyce serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. hirtula Hairy thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce setiloba Yuma spurge Annual herb  
Chamomilla occidentalis Western chamomile Annual herb  
Chenopodium incognitum Masked goosefoot Annual herb  
Chorisiva nevadensis Nevada sumpweed Annual herb  
Chorizanthe membranacea Pink spineflower Annual herb 1
Chorizanthe uniaristata One awn spineflower Annual herb  
Citrullus colocynthis var. citroides Citron Annual herb  
Clarkia amoena Farewell to spring Annual herb 16
Clarkia amoena ssp. huntiana Farewell to spring Annual herb  
Clarkia biloba ssp. brandegeae Brandegee's two lobed clarkia Annual herb  
Clarkia borealis Northern clarkia Annual herb  
Clarkia borealis ssp. borealis Northern clarkia Annual herb  
Clarkia concinna Red ribbons Annual herb 4
Clarkia concinna ssp. concinna Red ribbons Annual herb  
Clarkia dudleyana Dudley's clarkia Annual herb  
Clarkia gracilis Graceful clarkia Annual herb 2
Clarkia gracilis ssp. gracilis Graceful clarkia Annual herb  
Clarkia heterandra California gaura Annual herb  
Clarkia lassenensis Lassen clarkia Annual herb  
Clarkia modesta Waltham creek clarkia Annual herb 1
Clarkia mosquinii ssp. mosquinii Mosquin's clarkia Annual herb  
Clarkia mosquinii ssp. xerophylla Mosquin's clarkia Annual herb  
Clarkia purpurea Purple clarkia Annual herb 9
Clarkia purpurea ssp. quadrivulnera Purple clarkia Annual herb 4
Clarkia purpurea ssp. viminea Large godetia Annual herb  
Clarkia rhomboidea Tongue clarkia Annual herb 1
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 gypsophiloides Gypsum spring beauty Annual herb  
Claytonia parviflora Narrow leaved miner's lettuce Annual herb 2
Claytonia parviflora ssp. parviflora Miner'slettuce Annual herb  
Claytonia perfoliata Miner's lettuce Annual herb 5
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  
Cleome lutea Yellow bee plant Annual herb 1
Cleome platycarpa Golden bee plant Annual herb  
Cleome serrulata Rocky mountain bee plant Annual herb 8
Cleome sparsifolia Fewleaf bee plant Annual herb  
Collinsia grandiflora Large flowered collinsia Annual herb 1
Collinsia greenei Greene's collinsia Annual herb  
Collinsia linearis Narrow leaf collinsia Annual herb  
Collinsia parviflora Few flowered blue eyed mary Annual herb  
Collinsia rattanii Rattan's collinsia Annual herb 1
Collinsia stricta Narrow collinsia Annual herb 1
Collinsia torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. latifolia Broad leaved 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 3
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  
Conyza canadensis var. glabrata Canadian horseweed Annual herb  
Conyza coulteri Coulter's horseweed Annual herb  
Cordylanthus maritimus Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. canescens Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. maritimus Salt marsh bird's beak Annual herb (hemiparasitic)  
Cordylanthus maritimus ssp. palustris Point reyes bird's beak Annual herb (hemiparasitic)  
Cordylanthus mollis Soft bird's beak Annual herb  
Cordylanthus mollis ssp. hispidus Hispid bird's beak Annual herb (hemiparasitic)  
Cordylanthus mollis ssp. mollis Soft bird's beak Annual herb (hemiparasitic)  
Cordylanthus orcuttianus Orcutt's bird's beak Annual herb (hemiparasitic)  
Cordylanthus palmatus Palmate bracted bird's beak Annual herb (hemiparasitic)  
Cordylanthus pilosus Hairy bird's beak Annual herb  
Cordylanthus pilosus ssp. hansenii Hansen's bird's beak Annual herb  
Cordylanthus tecopensis Tecopa bird's beak Annual herb (hemiparasitic)  
Cordylanthus tenuis Slender bird's beak Annual herb  
Cordylanthus tenuis ssp. tenuis Slender bird's beak Annual herb  
Cordylanthus tenuis ssp. viscidus Viscid bird's beak Annual herb  
Coreopsis bigelovii Bigelow coreopsis Annual herb 3
Coreopsis californica var. californica California coreopsis Annual herb  
Coreopsis calliopsidea Leafy stemmed coreopsis Annual herb 3
Coreopsis douglasii Douglas' coreopsis Annual herb 1
Coreopsis hamiltonii Mt. hamilton coreopsis Annual herb  
Coreopsis stillmanii Stillman's coreopsis Annual herb 2
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 4
Cryptantha affinis Common cryptantha Annual herb  
Cryptantha ambigua Wilkes' cryptantha Annual herb  
Cryptantha clevelandii var. dissita Serpentine cryptantha Annual herb  
Cryptantha crinita Silky cryptantha Annual herb  
Cryptantha flaccida Beaked cryptantha Annual herb  
Cryptantha hispidula Napa cryptantha Annual herb  
Cryptantha intermedia Common cryptanth Annual herb  
Cryptantha intermedia var. hendersonii Henderson's cryptantha Annual herb  
Cryptantha milobakeri Milo baker's cryptantha Annual herb  
Cryptantha muricata Prickly cryptantha Annual herb 2
Cryptantha rostellata Beaked cryptantha Annual herb  
Cryptantha simulans Pine cryptantha Annual herb  
Cryptantha subretusa Crater lake 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 indecora Big seed alfalfa dodder Annual herb, Vine (parasitic)  
Cuscuta indecora var. neuropetala Nerve petaled dodder Annual herb, Vine (parasitic)  
Cuscuta jepsonii Jepson's dodder Annual herb, Vine  
Cuscuta occidentalis California dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. major Dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. papillata Saltmarsh dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. salina Salt marsh dodder Annual herb, Vine (parasitic)  
Cuscuta subinclusa Canyon dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii var. subpedicellata Mountain dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii var. suksdorfii Mountain dodder Annual herb, Vine (parasitic)  
Cyperus bipartitus Slender flatsedge Annual grass  
Cyperus squarrosus Awned cyperus Annual grass  
Daucus pusillus Wild carrot Annual herb 1
Deinandra bacigalupi Livermore tarplant Annual herb  
Deinandra corymbosa ssp. corymbosa Coastal tarweed Annual herb  
Deinandra corymbosa ssp. macrocephala Coastal tarweed Annual herb  
Deinandra increscens ssp. foliosa Leafy tarplant Annual herb  
Deinandra pallida Kern tarweed Annual herb  
Deschampsia danthonioides Annual hairgrass Annual grass  
Descurainia incisa Mountain tansy mustard Annual herb  
Descurainia incisa ssp. filipes Erect fruited mountain tansy mustard Annual herb  
Descurainia paradisa ssp. paradisa Paradise tansymustard Annual herb  
Diplacus bolanderi Bolander's monkeyflower Annual herb  
Diplacus douglasii Purple mouse ears Annual herb  
Diplacus jepsonii Jepson's monkeyflower Annual herb  
Diplacus kelloggii Kellogg's monkeyflower Annual herb  
Diplacus layneae Layne's monkeyflower Annual herb  
Diplacus nanus Dwarf monkey flower Annual herb  
Downingia bacigalupii Bach's downingia Annual herb  
Downingia concolor Spotted throat downingia Annual herb  
Downingia cuspidata Toothed downingia Annual herb  
Downingia elegans Elegant downingia Annual herb  
Downingia elegans var. corymbosa Elegant downingia Annual herb  
Downingia elegans var. elegans Elegant calicoflower Annual herb  
Downingia pulcherrima Calicoflower Annual herb  
Downingia yina Cascade downingia Annual herb  
Draba albertina Alberta whitlow grass Annual, Perennial herb  
Draba cuneifolia var. cuneifolia Wedgeleaf draba Annual herb  
Draba cuneifolia var. integrifolia Wedgeleaf draba Annual herb  
Draba cuneifolia var. sonorae Sonora draba Annual herb  
Draba stenoloba var. ramosa Alaska draba Annual, Perennial herb  
Draba verna Whitlow grass Annual herb  
Draba verna var. aestivalis Small bruited spring draba Annual herb  
Elatine gracilis Sierra waterwort Annual, Perennial herb (aquatic)  
Eleocharis decumbens Decumbent spikerush Annual grass  
Eleocharis engelmannii Engelmann's spikerush Annual grass  
Eleocharis flavescens var. thermalis Yellow spikerush Annual grass  
Eleocharis obtusa Broad spiked spikerush Annual grass 3
Eleocharis obtusa var. engelmannii Engelmann's spikerush Annual grass  
Eleocharis obtusa var. obtusa Broad spiked spikerush Annual grass 3
Eleocharis thermalis Warm springs spikerush Annual grass  
Epilobium brachycarpum Willow herb Annual herb 1
Epilobium campestre Smooth boisduvalia Annual herb  
Epilobium densiflorum Willow herb Annual herb  
Epilobium foliosum California willowherb Annual herb  
Epilobium minutum Minute willowherb Annual herb  
Epilobium pallidum Pale boisduvalia Annual herb  
Epilobium paniculatum var. jucundum Autumn willowherb Annual herb 1
Epilobium pygmaeum Smooth boisduvalia Annual herb  
Epilobium torreyi Narrow boisduvalia Annual herb  
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
Eriastrum brandegeae Brandegee's eriastrum Annual herb  
Eriastrum brandegeeae Brandegee's eriastrum Annual herb  
Eriastrum tracyi Tracy's eriastrum Annual herb  
Erigeron canadensis Canada horseweed Annual herb  
Erigeron strigosus var. septentrionalis Prairie fleabane Annual, Perennial herb  
Eriogonum apiculatum var. apiculatum Annual herb  
Eriogonum cernuum var. cernuum Nodding buckwheat Annual herb  
Eriogonum cernuum var. viminale Nodding buckwheat Annual herb  
Eriogonum deflexum var. rectum Flat topped buckwheat Annual herb  
Eriogonum foliosum Leafy buckwheat Annual herb  
Eriogonum hirtiflorum Hairy flowered buckwheat Annual herb  
Eriogonum luteolum Wicker buckwheat Annual herb  
Eriogonum luteolum var. luteolum Golden buckwheat Annual herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Eriogonum puberulum Downy buckwheat Annual herb  
Eriogonum spergulinum Wild buckwheat Annual herb  
Eriogonum spergulinum var. reddingianum Spurry buckwheat Annual herb  
Eriogonum trichopes var. hooveri Hoover's buckwheat Annual herb  
Eriogonum trichopes var. trichopes Little desert buckwheat Annual herb  
Eriogonum vimineum Wicker stemmed eriogonum Annual herb 2
Eriophyllum ambiguum Annual woolly sunflower Annual herb  
Erodium macrophyllum Large leaved filaree Annual herb  
Erythranthe alsinoides Chickweed monkeyflower Annual herb  
Erythranthe bicolor Yellow and white monkeyflower Annual herb  
Erythranthe breweri Brewer's monkeyflower Annual herb  
Erythranthe floribunda Many flowered monkey flower Annual herb 1
Erythranthe guttata Yellow monkey flower Annual, Perennial herb (rhizomatous) 38
Erythranthe montioides Montia like monkeyflower Annual herb  
Erythranthe pulsiferae Candelabrum monkey flower Annual herb  
Erythranthe trinitiensis Pink-margined monkeyflower Annual herb  
Eschscholzia caespitosa Tufted eschscholzia Annual herb 14
Eschscholzia californica California poppy Annual, Perennial herb 49
Euphorbia crenulata Chinesecaps Annual, Perennial herb  
Euphorbia serpillifolia Thyme-leafed spurge Annual herb  
Euphorbia spathulata Reticulate seeded spurge Annual herb  
Festuca microstachys Small fescue Annual grass 7
Filago arizonica Arizona filago Annual herb  
Filago californica California filago Annual herb  
Filago depressa Dwarf 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  
Gaura coccinea Scarlet gaura Annual, Perennial 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  
Gentianella amarella Autumn dwarf gentian Annual herb  
Gentianella amarella ssp. acuta Autumn dwarf gentian Annual herb  
Gentianella tenella ssp. tenella Dane's dwarf gentian Annual herb  
Gentianopsis simplex Hiker's fringed gentian Annual herb  
Geranium carolinianum Carolina geranium Annual herb  
Gilia australis Splendid gilia Annual herb  
Gilia brecciarum ssp. jacens Nevada gilia Annual herb  
Gilia campanulata Bell shape gilia Annual herb  
Gilia capillaris Smooth leaved gilia Annual herb  
Gilia capitata Blue field gilia Annual herb 18
Gilia capitata ssp. capitata Blue field gilia Annual herb 2
Gilia caruifolia Broad flowered gilia Annual herb  
Gilia filiformis Thread stemmed gilia Annual herb  
Gilia hutchinsifolia Desert pale gilia Annual herb  
Gilia inyoensis Inyo gilia Annual herb  
Gilia latifolia Troadleaf gilia Annual herb  
Gilia leptalea Bridges' gilia Annual herb  
Gilia leptalea ssp. bicolor Purple throat gilia Annual herb  
Gilia leptalea ssp. leptalea Bridges gilia Annual herb  
Gilia leptomeria Tooth leaved gilia Annual herb  
Gilia lottiae Lott's gilia Annual herb  
Gilia maculata Miniatur gilia Annual herb  
Gilia micromeria Dainty 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 splendens Splendid gilia Annual herb 1
Gilia splendens ssp. grantii Grant's gilia Annual herb  
Gilia splendens ssp. splendens Splendid gilia Annual herb  
Gilia subacaulis Short stem gilia Annual herb  
Gilia tenerrima Delicate gilia Annual herb  
Gilia tetrabreccia Mt. pinos gilia Annual herb  
Gilia tricolor Bird's eyes Annual herb 15
Gilia triodon Sand gilia Annual herb  
Githopsis diffusa San gabriel bluecup Annual herb  
Githopsis diffusa ssp. robusta San gabriel bluecup Annual herb  
Githopsis specularioides Venus' looking glass Annual herb  
Gnaphalium californicum California everlasting Annual, Perennial herb 11
Gnaphalium macounii Macoun's cudweed Annual, Perennial herb  
Gnaphalium palustre Lowland cudweed Annual herb  
Gnaphalium purpureum Purple cudweed Annual, Perennial herb  
Gnaphalium stramineum Cotton batting Annual, Perennial herb 3
Guillenia flavescens Yellow california mustard Annual herb 1
Guillenia lasiophylla Shaggy thelypod Annual herb  
Harmonia doris-nilesiae Niles's harmonia Annual herb  
Harmonia stebbinsii Stebbins's harmonia Annual herb  
Helianthus annuus Hairy leaved sunflower Annual herb 16
Helianthus bolanderi Bolander's sunflower Annual, Perennial herb 2
Helianthus exilis Serpentine sunflower Annual herb 2
Helianthus niveus ssp. canescens Gray desert sunflower Annual, Perennial herb  
Hemizonella minima Opposite leaved tarweed Annual herb  
Hemizonia arida Red rock tarplant Annual herb  
Hemizonia congesta Hayfield tarweed Annual herb 6
Hemizonia congesta ssp. clevelandii Cleveland's tarweed Annual herb  
Hemizonia congesta ssp. leucocephala Hayfield tarplant Annual herb  
Hemizonia congesta ssp. luzulifolia Woodrush tarweed Annual herb 6
Hemizonia congesta ssp. tracyi Tracy's tarplant Annual herb  
Hemizonia conjugens Otay tarplant Annual herb  
Hemizonia corymbosa Coastal tarweed Annual herb 2
Hemizonia corymbosa ssp. corymbosa Central coast tarweed Annual herb  
Hemizonia corymbosa ssp. macrocephala Central coast tarweed Annual herb  
Hemizonia fasciculata Common tarweed Annual herb 5
Hemizonia fitchii Spikeweed Annual herb  
Hemizonia floribunda Tecate tarplant Annual herb  
Hemizonia halliana Hall's tarplant Annual herb  
Hemizonia increscens Grassland tarweed Annual herb  
Hemizonia increscens ssp. foliosa Leafy grassland tarweed Annual herb  
Hemizonia increscens ssp. increscens Coast tarplant Annual herb  
Hemizonia increscens ssp. villosa Gaviota tarplant Annual herb  
Hemizonia kelloggii Kellogg's tarweed Annual herb 1
Hemizonia lobbii Three raped tarweed Annual herb  
Hemizonia mohavensis Mojave tarplant Annual herb 1
Hemizonia pallida Kern tarweed Annual herb  
Hemizonia paniculata San diego tarweed Annual herb 2
Hemizonia parryi Parry's tarweed Annual herb 1
Hemizonia parryi ssp. australis Southern tarplant Annual herb 1
Hemizonia parryi ssp. congdonii Congdon's tarplant Annual herb  
Hemizonia parryi ssp. parryi Parry's tarweed Annual herb  
Hemizonia parryi ssp. rudis Parry's red tarplant Annual herb  
Hemizonia pentactis Salinas river tarweed Annual herb  
Hemizonia pungens Common spikeweed Annual herb 1
Hemizonia pungens ssp. laevis Smooth tarplant Annual herb  
Hemizonia pungens ssp. maritima Maritime spikeweed Annual herb  
Hemizonia pungens ssp. pungens Common tarweed Annual herb  
Hemizonia pungens ssp. septentrionalis Northern spikeweed Annual herb  
Hesperolinon micranthum Small flower western flax Annual herb  
Heterocodon rariflorum Heterocodon Annual herb  
Heterodraba unilateralis Ladiestongue mustard Annual herb  
Heterotheca psammophila Camphor weed Annual, Perennial herb 1
Holocarpha obconica ssp. autumnalis Autumn san joaquin tarweed Annual herb  
Holocarpha obconica ssp. obconica San joaquin tarweed Annual herb  
Howellia aquatilis Water howellia Annual herb (aquatic)  
Hypericum anagalloides Creeping St. John's wort Annual, Perennial herb 1
Idahoa scapigera Oldstem idahoa Annual herb  
Impatiens occidentalis Western touch me not Annual herb  
Ipomopsis depressa Low ipomopsis Annual herb  
Iva nevadensis Nevada wormwood Annual herb  
Juncus bufonius Common toad rush Annual grass 6
Juncus bufonius var. bufonius Toad rush Annual grass  
Juncus hemiendytus Dwarf rush Annual grass  
Juncus hemiendytus var. hemiendytus Vernal pool rush Annual grass  
Lagophylla ramosissima Common hareleaf Annual herb  
Lagophylla ramosissima ssp. congesta Clustered hareleaf Annual herb  
Lagophylla ramosissima ssp. ramosissima Common hareleaf Annual herb  
Lasthenia californica Goldfields Annual herb 10
Lasthenia californica ssp. californica California goldfields Annual herb 2
Lasthenia macrantha Perennial goldfields Annual herb 1
Lasthenia macrantha ssp. bakeri Baker's goldfields Annual herb  
Lasthenia macrantha ssp. macrantha Perennial goldfields Annual herb 1
Layia chrysanthemoides Smooth tidy tips Annual herb 1
Lembertia congdonii San joaquin woollythreads Annual herb  
Lepidium densiflorum var. densiflorum Common pepper grass Annual herb  
Lepidium densiflorum var. elongatum Common pepper grass Annual herb  
Lepidium densiflorum var. macrocarpum Bigseed pepper grass Annual herb  
Lepidium densiflorum var. pubecarpum Hairy pepper grass Annual herb  
Lepidium densiflorum var. pubicarpum Annual herb  
Lepidium densiflorum var. ramosum Common pepper grass Annual herb  
Lepidium dictyotum var. acutidens Net pepper grass Annual herb  
Lepidium dictyotum var. dictyotum Net pepper grass Annual herb  
Lepidium flavum var. flavum Yellow pepper grass Annual herb  
Lepidium lasiocarpum Shaggyfruit pepperweed Annual herb  
Lepidium lasiocarpum var. lasiocarpum Sand peppergrass Annual herb  
Lepidium latipes var. latipes Dwarf pepper grass Annual herb  
Lepidium nitidum var. howellii Howell's pepper grass Annual herb 2
Lepidium nitidum var. nitidum Shining pepper grass Annual herb 2
Lepidium nitidum var. oreganum Shining pepper grass Annual herb 2
Lepidium oblongum var. insulare Veiny pepper grass Annual herb  
Lepidium oblongum var. oblongum Veiny pepper grass Annual herb  
Lepidium ruderale Roadside pepperweed Annual herb  
Lepidium virginicum var. medium Wild pepper grass Annual herb  
Lepidium virginicum var. pubescens Wild pepper grass Annual herb  
Leptochloa fascicularis Sprangletop Annual grass  
Leptochloa filiformis Red sprangletop Annual grass  
Leptochloa mucronata Mucronate sprangletop Annual grass  
Leptochloa uninervia Sprangletop Annual grass  
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 pygmaeus Pygmy linanthus Annual herb  
Leptosiphon pygmaeus ssp. pygmaeus Pygmy leptosiphon Annual herb  
Leptosiphon rattanii Rattan's leptosiphon Annual herb  
Lesquerella tenella Little bladderpod Annual herb  
Lessingia glandulifera var. pectinata Valley lessingia Annual herb  
Lessingia lemmonii Lemmon's lessingia Annual herb  
Lessingia lemmonii var. lemmonii Lemmon's lessingia Annual herb  
Lessingia lemmonii var. peirsonii Peirson's lessingia Annual herb  
Lessingia lemmonii var. ramulosissima Twiggy lemmon's lessingia Annual herb  
Lessingia nemaclada Thread stem lessingia Annual herb  
Lessingia occidentalis Western lessingia Annual herb  
Lessingia virgata var. virgata Wand lessingia Annual herb  
Lilaea scilloides Flowering quillwort Annual herb (aquatic)  
Limnanthes douglasii Common meadow foam Annual herb 7
Limnanthes douglasii ssp. nivea Snow white meadowfoam Annual herb 3
Limnanthes douglasii ssp. striata Foothill meadowfoam Annual herb  
Limnanthes floccosa Woolly meadowfoam Annual herb  
Limnanthes floccosa ssp. floccosa Woolly meadowfoam Annual herb  
Limnanthes gracilis ssp. parishii Parish's meadowfoam Annual herb  
Limnanthes striata Foothill meadowfoam Annual herb  
Linanthus acicularis Bristly linanthus Annual herb  
Linanthus ambiguus Serpentine linanthus Annual herb  
Linanthus androsaceus Common linanthus Annual herb 1
Linanthus aureus Golden gilia Annual herb  
Linanthus aureus ssp. aureus Golden linanthus Annual herb  
Linanthus aureus ssp. decorus Cream gilia Annual herb  
Linanthus bicolor True baby stars Annual herb  
Linanthus bolanderi Bolander's linanthus Annual herb  
Linanthus breviculus Mojave linanthus Annual herb  
Linanthus ciliatus Whisker brush linanthus Annual herb 1
Linanthus croceus Annual herb 1
Linanthus filipes Filiform linanthus Annual herb  
Linanthus grandiflorus Large flower linanthus Annual herb 15
Linanthus harknessii Harkness linanthus Annual herb  
Linanthus jepsonii Jepson's linanthus Annual herb  
Linanthus latisectus Napa linanthus Annual herb  
Linanthus lemmonii Lemmon's linanthus Annual herb  
Linanthus liniflorus Flax flowered linanthus Annual herb  
Linanthus montanus Mustang clover Annual herb  
Linanthus nudatus Tehachapi linanthus Annual herb  
Linanthus oblanceolatus Sierra nevada linanthus Annual herb  
Linanthus parviflorus Common linanthus Annual herb 1
Linanthus pygmaeus Pygmy linanthus Annual herb  
Linanthus pygmaeus ssp. continentalis Pygmy linanthus Annual herb  
Linanthus pygmaeus ssp. pygmaeus Typical pygmy linanthus Annual herb  
Linanthus rattanii Rattan's linanthus Annual herb  
Linanthus rosaceus Rose linanthus Annual herb  
Linanthus septentrionalis Northern linanthus Annual herb  
Linanthus serrulatus Madera linanthus Annual herb  
Linaria canadensis Toad flax Annual, Perennial herb  
Linaria canadensis var. texana Toad flax Annual, Perennial herb  
Lindernia dubia var. anagallidea False pimpernel Annual herb  
Lindernia dubia var. dubia False pimpernel Annual herb  
Lipocarpha micrantha Small flowered hemicarpha Annual grass  
Loeflingia squarrosa var. squarrosa California loeflingia Annual herb  
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 nuttallianus Nuttall's lotus Annual herb  
Lotus purshianus Bird's foot trefoil Annual herb 6
Lotus purshianus var. purshianus Spanish lotus Annual herb 1
Lotus rubriflorus Red flowered lotus Annual herb  
Lotus salsuginosus Coastal lotus Annual herb 2
Lotus salsuginosus var. brevivexillus Coastal lotus Annual herb  
Lotus salsuginosus var. salsuginosus Coastal lotus Annual herb  
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 arizonicus var. arizonicus Arizona lupine Annual herb 7
Lupinus arizonicus var. barbatulus Arizona lupine Annual herb  
Lupinus benthamii var. benthamii Spider lupine Annual herb 3
Lupinus bicolor Lupine Annual, Perennial herb 16
Lupinus luteolus Butter lupine Annual herb 2
Lupinus microcarpus Chick lupine Annual herb 7
Lupinus microcarpus var. densiflorus Chick lupine Annual herb 12
Lupinus microcarpus var. microcarpus Chick lupine Annual herb 3
Lupinus nanus Valley sky lupine Annual herb 13
Lupinus sparsiflorus ssp. sparsiflorus Coulter's lupine Annual herb  
Lupinus sparsiflorus var. inopinatus Coulter's lupine Annual herb  
Machaeranthera arida Silver lake daisy Annual herb  
Machaeranthera gracilis Slender goldenweed Annual herb  
Madia citrigracilis Shasta tarweed Annual herb  
Madia citriodora Lemon scented tarweed Annual herb  
Madia doris-nilesiae Niles's madia Annual herb  
Madia elegans Common madia Annual herb 12
Madia elegans ssp. densifolia Leafy common madia Annual herb 10
Madia elegans ssp. elegans Common madia Annual herb 12
Madia elegans ssp. vernalis Spring common madia Annual herb 11
Madia elegans ssp. wheeleri Wheeler's common madia Annual herb 10
Madia exigua Small tarweed Annual herb  
Madia glomerata Mountain tarweed Annual herb  
Madia gracilis Gumweed Annual herb 1
Madia hallii Hall's madia Annual herb  
Madia minima Little tarweed Annual herb  
Madia nutans Nodding madia Annual herb  
Madia rammii Ramm's madia Annual herb  
Madia stebbinsii Stebbins's madia Annual herb  
Madia yosemitana Yosemite madia Annual herb  
Malacothrix clevelandii Cleveland's malacothrix Annual herb  
Malacothrix floccifera Woolly malacothrix Annual herb 1
Matricaria discoidea Pineapple weed Annual herb 3
Meconella linearis Narrow leaved meconella Annual herb  
Mentzelia dispersa Scattered blazing star Annual herb  
Mentzelia involucrata var. involucrata Whitebract blazingstar Annual herb  
Mentzelia involucrata var. megalantha Bracted blazing star Annual herb  
Mentzelia micrantha Small flowered stickleaf Annual herb 2
Micropus californicus Q tips Annual herb 1
Micropus californicus var. californicus Slender cottonweed Annual herb  
Microsteris gracilis Slender phlox Annual herb  
Microsteris gracilis var. gracilis Slender phlox Annual herb  
Microsteris gracilis var. humilior Slender phlox Annual herb  
Mimetanthe pilosa Snouted monkey flower Annual herb  
Mimulus alsinoides Chickweed monkeyflower Annual herb  
Mimulus bicolor Yellow and white monkeyflower Annual herb  
Mimulus bolanderi Bolander's monkeyflower Annual herb 2
Mimulus brachiatus Serpentine monkeyflower Annual herb  
Mimulus breweri Brewer's monkeyflower Annual herb  
Mimulus cleistogamus Selfing monkeyflower Annual herb  
Mimulus cupriphilus Mcnulty mine monkeyflower Annual herb 38
Mimulus douglasii Purple mouse ears Annual herb  
Mimulus floribundus Many flowered monkey flower Annual herb 1
Mimulus guttatus Yellow monkey flower Annual, Perennial herb (rhizomatous) 38
Mimulus jepsonii Jepson's monkeyflower Annual herb  
Mimulus kelloggii Kellogg's monkeyflower Annual herb  
Mimulus layneae Layne's monkeyflower Annual herb  
Mimulus mephiticus Skunky monkeyflower Annual herb  
Mimulus microphyllus Small leaved monkeyflower Annual herb 38
Mimulus montioides Montia like monkeyflower Annual herb  
Mimulus nanus Dwarf monkey flower Annual herb  
Mimulus nanus var. jepsonii Jepson's monkeyflower Annual herb  
Mimulus nanus var. nanus Dwarf monkey flower Annual herb  
Mimulus pilosus Snouted monkey flower Annual herb  
Mimulus pulsiferae Candelabrum monkey flower Annual herb  
Mimulus spissus Compact monkeyflower Annual herb  
Mimulus whipplei Whipple's monkeyflower Annual herb 38
Minuartia californica Sandwort Annual herb  
Minuartia douglasii Douglas' sandwort Annual herb  
Minuartia pusilla Annual sandwort Annual herb  
Monardella douglasii ssp. douglasii Douglas' monardella Annual herb  
Monardella douglasii ssp. venosa Veiny monardella Annual herb  
Monardella lanceolata Mustang mint Annual herb 1
Monardella lanceolata var. glandulifera Mustang monardella Annual herb  
Monardella lanceolata var. lanceolata Mustang monardella Annual herb  
Monardella lanceolata var. microcephala Mustang monardella Annual herb  
Monolepis pusilla Dwarf poverty weed Annual herb  
Montia fontana Water montia Annual herb  
Montia fontana ssp. chondrosperma Water chickweed Annual herb  
Montia howellii Howell's montia Annual herb  
Montia linearis Narrow leaved water chickweed Annual herb  
Muhlenbergia filiformis Slender muhly Annual, Perennial grass  
Muhlenbergia minutissima Annual muhly Annual grass  
Myosurus apetalus Mouse tail Annual herb  
Myosurus apetalus var. montanus Bristly mousetail Annual herb  
Myosurus minimus Little mouse tail Annual herb  
Nama arizonicum Arizona fiddleleaf Annual herb  
Navarretia atractyloides Holly leaf navarretia 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 heterandra Tehama 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 jaredii Paso robles navarretia Annual herb  
Navarretia leptalea Bridges' pincushionplant Annual herb  
Navarretia leptalea ssp. leptalea Bridges' gilia 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 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 ssp. viscidula Sticky pincushionplant Annual herb  
Nemacladus capillaris Common nemacladus Annual herb  
Nemacladus glanduliferus var. glanduliferus Glandular nemacladus Annual herb  
Nemacladus glanduliferus var. orientalis Eastern glandular nemacladus Annual herb  
Nemacladus rubescens var. rubescens Desert threadplant Annual herb  
Nemacladus rubescens var. tenuis Desert nemacladus Annual herb  
Nemophila heterophylla Canyon nemophila Annual herb  
Nemophila menziesii Baby blue eyes Annual herb 18
Nemophila menziesii var. atomaria 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  
Nemophila pulchella ssp. pulchella Eastwood's nemophila Annual herb  
Nicotiana attenuata Coyote tobacco Annual herb  
Nicotiana bigelovii var. wallacei Indian tobacco Annual herb  
Nicotiana quadrivalvis Indian tobacco Annual herb 2
Nicotiana quadrivalvis var. wallacei Wallace's tobacco Annual herb  
Orobanche vallicola Valley broom rape Annual herb  
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  
Oxytheca caryophylloides Chickweed oxytheca Annual herb  
Oxytheca emarginata White margined oxytheca Annual herb  
Oxytheca parishii Parish's oxytheca Annual herb  
Oxytheca parishii var. abramsii Abrams's oxytheca Annual herb  
Oxytheca parishii var. cienegensis Cienega seca oxytheca Annual herb  
Oxytheca parishii var. goodmaniana Cushenbury oxytheca Annual herb  
Oxytheca parishii var. parishii Parish's oxytheca Annual herb  
Oxytheca trilobata Three lobed oxytheca Annual herb  
Panicum alatum var. alatum Winged panicgrass Annual grass  
Panicum capillare Old witch grass Annual grass 2
Panicum capillare ssp. capillare Annual grass 2
Panicum hirticaule var. hirticaule Mexican panicgrass Annual grass  
Panicum oligosanthes Heller's rosette grass Annual grass  
Panicum oligosanthes var. scribnerianum Scribner's rosette grass Annual grass  
Papaver heterophyllum Wind poppy Annual herb 4
Parietaria pensylvanica Pennsylvania pellitory Annual herb  
Parishella californica Mojave dwarf Annual herb  
Parvisedum congdonii Congdon's stonecrop Annual herb  
Parvisedum leiocarpum Lake county stonecrop Annual herb  
Parvisedum pentandrum Central california stonecrop Annual herb  
Parvisedum pumilum Sierra stonecrop Annual herb  
Pectocarya penicillata Winged pectocarya Annual herb  
Pectocarya pusilla Little pectocarya Annual herb  
Pectocarya setosa Moth combseed Annual herb 1
Persicaria lapathifolia Common knotweed Annual herb  
Phacelia affinis var. patens Limestone phacelia Annual herb  
Phacelia bicolor var. bicolor Two colored phacelia Annual herb  
Phacelia campanularia ssp. campanularia Desert bells Annual herb 1
Phacelia campanularia ssp. vasiformis Desert bluebells Annual herb  
Phacelia cicutaria var. hubbyi Hubby's caterpillar phacelia Annual herb  
Phacelia douglasii var. douglasii Douglas' phacelia Annual herb  
Phacelia eisenii var. brandegeana Eisen's phacelia Annual herb  
Phacelia greenei Scott valley phacelia Annual herb  
Phacelia hardhamiae Hardham's gray phacelia Annual herb  
Phacelia ivesiana var. ivesiana Ives' phacelia Annual herb  
Phacelia leonis Siskiyou phacelia Annual herb  
Phacelia linearis Thread leaf phacelia Annual herb  
Phacelia pringlei Pringle's phacelia Annual herb  
Phacelia racemosa Racemose phacelia Annual herb  
Phacelia suaveolens ssp. keckii Santiago peak phacelia Annual herb  
Phacelia suaveolens var. keckii Santiago peak phacelia Annual herb  
Phacelia suaveolens var. suaveolens Sweet scented phacelia Annual herb  
Phacelia vallis-mortae var. vallis-mortae Death valley phacelia Annual herb  
Phlox gracilis Annual phlox Annual herb  
Pholistoma membranaceum White fiesta flower Annual herb  
Plagiobothrys bracteatus Bracted allocarya Annual herb  
Plagiobothrys catalinensis Catalina popcorn flower Annual herb  
Plagiobothrys cognatus Popcorn flower Annual herb  
Plagiobothrys glomeratus Mammoth popcorn flower Annual herb  
Plagiobothrys hispidulus Harsh allocarya Annual herb  
Plagiobothrys myosotoides Forget me not popcorn flower Annual herb  
Plagiobothrys nothofulvus Rusty haired popcorn flower Annual herb  
Plagiobothrys reticulatus Reticulate popcorn flower Annual herb  
Plagiobothrys reticulatus var. rossianorum Fort ross allocarya Annual herb  
Plagiobothrys scouleri var. cusickii Cusick's popcornflower Annual herb  
Plagiobothrys scouleri var. hispidulus Sleeping popcornflower Annual herb  
Plagiobothrys shastensis Shasta popcorn flower Annual herb  
Plagiobothrys stipitatus Vernal pool allocarya Annual herb  
Plagiobothrys stipitatus var. micranthus Common vernal pool allocarya Annual herb  
Plagiobothrys stipitatus var. stipitatus Vernal pool allocarya Annual herb  
Plagiobothrys strictus Calistoga popcorn flower Annual herb  
Plagiobothrys tenellus Slender popcorn flower Annual herb  
Plagiobothrys tener Slender allocarya Annual herb  
Plantago bigelovii Long leaf plantain Annual herb  
Plantago elongata ssp. pentasperma Five seeded 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. 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 douglasii ssp. douglasii Douglas' mesamint Annual herb  
Polemonium micranthum Annual sky pilot 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. majus Large douglas' knotweed Annual herb  
Polygonum douglasii ssp. spergulariiforme Spurry knotweed Annual herb  
Polygonum lapathifolium Common knotweed Annual herb  
Polygonum majus Large douglas' knotweed Annual herb  
Polygonum minimum Little mountain knotweed Annual herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. confertiflorum Dense 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 Annual, Perennial herb  
Polygonum spergulariiforme Spurry knotweed Annual herb  
Poteridium annuum Western burnet Annual, Perennial herb  
Proboscidea parviflora ssp. parviflora Devil's claw Annual herb  
Proboscidea parviflora var. hohokamiana Devil's claw Annual herb  
Pseudognaphalium californicum Ladies' tobacco Annual, Perennial herb 11
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  
Psilocarphus tenellus var. globiferus Round woolly marbles Annual herb  
Psilocarphus tenellus var. tenellus Slender woolly heads Annual herb  
Rafinesquia californica California chicory Annual herb  
Ranunculus macounii Macoun's buttercup Annual, Perennial herb  
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 Bluntleaf yellow cress Annual herb  
Rorippa curvipes var. curvipes Bluntleaf yellow cress 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 var. hispida Hispid yellow cress Annual, Perennial herb  
Rorippa palustris var. occidentalis Western bog yellow cress Annual, Perennial herb  
Rorippa tenerrima Modoc yellow cress Annual herb  
Rumex maritimus Golden dock Annual, Perennial herb  
Sagina decumbens Trailing pearlwort Annual herb  
Sagina decumbens ssp. occidentalis Western pearlwort Annual herb  
Salvia columbariae var. columbariae Chia Annual herb 12
Saxifraga bryophora Bud saxifrage Annual herb  
Scirpus cernuus Low clubrush Annual grass 13
Scirpus koilolepis Keeled bulrush Annual grass  
Scirpus saximontanus Rocky mountain bulrush Annual grass  
Scribneria bolanderi Scribneria Annual grass  
Sedum radiatum Coast range stonecrop Annual herb  
Senecio ammophilus California coast butterweed Annual herb  
Sesbania exaltata Colorado river hemp Annual herb  
Sibara rosulata East mojave rock cress Annual herb  
Sibara virginica Common rock cress Annual, Perennial herb  
Sidalcea diploscypha Fringed checker mallow Annual herb  
Silene antirrhina Sleepy catch fly Annual herb  
Silene californica California indian pink Annual herb 1
Silene multinervia Fire following campion Annual herb  
Silene verecunda ssp. andersonii Anderson's campion Annual herb  
Silene verecunda ssp. platyota San francisco campion Annual herb  
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 paniculata Stiff branched stephanomeria Annual herb  
Stephanomeria virgata Twiggy wreath plant Annual herb 1
Stephanomeria virgata ssp. pleurocarpa Tall stephanomeria Annual herb  
Stephanomeria virgata ssp. virgata Tall milk aster Annual herb  
Streptanthus breweri Brewer's jewelflower Annual herb  
Streptanthus breweri var. breweri Brewer's jewelflower Annual herb  
Streptanthus breweri var. hesperidis Brewer's jewelflower Annual herb  
Streptanthus drepanoides Sickle fruit jewel flower Annual herb  
Streptanthus glandulosus var. hoffmanii Hoffmann's jewelflower Annual herb 1
Streptanthus niger Tiburon jewel flower Annual herb  
Streptanthus tortuosus Jewelweed Annual, Perennial herb  
Streptanthus tortuosus var. flavescens Yellow mountain jewelflower 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  
Stylomecon heterophylla Wind poppy Annual herb 4
Subularia aquatica var. americana American awlwort Annual herb  
Tetrapteron graciliflorum Hill sun cup Annual herb  
Teucrium cubense var. densum Small coastal germander Annual herb  
Thysanocarpus curvipes Common fringe pod Annual herb 2
Thysanocarpus laciniatus var. hitchcockii Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus var. laciniatus Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus var. rigidus Narrow leaved lacepod Annual herb  
Thysanocarpus radians Showy fringe pod Annual herb  
Tidestromia lanuginosa ssp. eliassoniana Woolly tidestromia 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 var. andrewsii Gray's clover Annual herb 1
Trifolium barbigerum var. barbigerum Bearded clover Annual herb  
Trifolium bifidum Notch leaf clover Annual herb 2
Trifolium ciliolatum Tree clover Annual herb 6
Trifolium cyathiferum Cup clover Annual herb  
Trifolium depauperatum var. hydrophilum Water sack clover Annual herb  
Trifolium dichotomum Branched indian clover Annual herb  
Trifolium fucatum Bull clover Annual herb 5
Trifolium gracilentum Pin point clover Annual herb 5
Trifolium gracilentum var. gracilentum Pin point clover Annual herb 5
Trifolium gracilentum var. palmeri Southern island clover Annual herb  
Trifolium microcephalum Small head clover Annual herb 4
Trifolium microdon Valparaiso clover Annual herb  
Trifolium obtusiflorum Creek clover Annual herb 4
Trifolium oliganthum Few flowered clover Annual herb 1
Trifolium variegatum Variegated clover Annual herb 1
Trifolium variegatum var. variegatum Variegated clover Annual herb  
Trifolium willdenovii Tomcat clover Annual herb 8
Triodanis biflora Venus looking glass Annual herb  
Triphysaria pusilla Little owl's clover Annual herb  
Twisselmannia californica King's gold Annual herb  
Uropappus lindleyi Silver puffs Annual herb 1
Verbena menthifolia Mint leafed vervain Annual, Perennial herb  
Veronica peregrina Neckweed Annual herb  
Veronica peregrina ssp. xalapensis Speedwell Annual herb  
Vicia ludoviciana var. ludoviciana Slender vetch Annual herb  
Vulpia microstachys Fescue Annual grass 7
Vulpia microstachys var. ciliata Eastwood fescue Annual grass  
Vulpia microstachys var. confusa Tracy's fescue Annual grass  
Vulpia microstachys var. microstachys Small fescue Annual grass  
Vulpia microstachys var. pauciflora Few flowered fescue Annual grass  
Vulpia octoflora var. hirtella Six weeks fescue Annual grass 1
Vulpia octoflora var. octoflora Six weeks fescue Annual grass 1
Xanthium strumarium Cocklebur Annual herb  
Yabea microcarpa Hedge parsley Annual herb  
Zeltnera muehlenbergii Muehlenberg's centaury Annual herb 2
  Lifeform: Biennial3 plants
Descurainia incisa ssp. incisa Mountain tansy mustard Biennial herb  
Erigeron divergens Diffuse daisy Biennial, Perennial herb 3
Gnaphalium ramosissimum Pink everlasting Biennial herb 1
  Lifeform: Perennial2370 plants
Abronia nana ssp. covillei Coville's dwarf abronia Perennial herb  
Abronia umbellata ssp. breviflora Pink sand verbena Perennial herb  
Abronia umbellata ssp. umbellata Sand verbena Perennial herb  
Achillea millefolium Yarrow Perennial herb 69
Achlys triphylla Vanilla leaf Perennial herb 8
Achlys triphylla ssp. triphylla Deer foot Perennial herb 8
Achnatherum aridum Mormon needle grass Perennial grass  
Achnatherum coronatum Giant needlegrass Perennial grass 7
Achnatherum diegoense San diego county needle grass Perennial grass  
Achnatherum hymenoides Indian rice grass Perennial grass 8
Achnatherum latiglume Sierra needlegrass Perennial grass  
Achnatherum latiglumis Sierra needlegrass Perennial grass  
Achnatherum lemmonii Lemmon's stipa Perennial grass 2
Achnatherum lemmonii ssp. lemmonii Lemmon's needlegrass Perennial grass  
Achnatherum lemmonii ssp. pubescens Pubescent needle grass Perennial grass  
Achnatherum lemmonii var. pubescens Pubescent needlegrass Perennial grass  
Achnatherum lettermanii Letterman stipa Perennial grass 1
Achnatherum nelsonii Columbia needlegrass Perennial grass 1
Achnatherum nelsonii ssp. dorei Mountain needlegrass Perennial grass 1
Achnatherum nevadense Sierra needlegrass Perennial grass  
Achnatherum occidentale Western needlegrass Perennial grass 2
Achnatherum occidentale ssp. californicum California needlegrass Perennial grass  
Achnatherum occidentale ssp. occidentale Western needlegrass Perennial grass  
Achnatherum occidentale ssp. pubescens Elmer's needlegrass Perennial grass  
Achnatherum parishii Parish's needlegrass Perennial grass  
Achnatherum pinetorum Pinewoods needlegrass Perennial grass  
Achnatherum speciosum Desert needlegrass Perennial grass 8
Achnatherum stillmanii Stillman's stipa Perennial grass 1
Achnatherum thurberianum Thurber stipa Perennial grass  
Achnatherum webberi Webber's needlegrass Perennial grass  
Acmispon grandiflorus Large leaved lotus Perennial herb 4
Acmispon grandiflorus var. macranthus Mountain chaparral lotus Perennial herb  
Acmispon nevadensis Sierra lotus Perennial herb  
Acmispon nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Aconitum columbianum Monkshood Perennial herb 3
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 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 aurantiaca Orange flowered agoseris Perennial herb 1
Agoseris aurantiaca var. aurantiaca Orange agoseris Perennial herb  
Agoseris elata Tall agoseris Perennial herb  
Agoseris glauca var. agrestis Field short beaked agoseris Perennial herb  
Agoseris glauca var. laciniata False dandelion Perennial herb  
Agoseris glauca var. monticola Mountain agoseris Perennial herb  
Agoseris grandiflora Giant mountain dandelion Perennial herb 3
Agoseris grandiflora var. leptophylla Giant mountain dandelion Perennial herb 3
Agoseris retrorsa Spear leaved agoseris Perennial herb 1
Agrimonia gryposepala Common agrimony Perennial herb  
Agrostis exarata Bentgrass Perennial grass 5
Agrostis exarata var. monolepis Spike bentgrass Perennial grass 5
Agrostis hallii Hall's bent grass Perennial grass 1
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 15
Agrostis scabra Rough bentgrass Perennial grass 4
Agrostis scabra var. geminata Rough bentgrass Perennial grass 4
Agrostis thurberiana Thurber's bentgrass Perennial grass  
Agrostis variabilis Mountain bentgrass Perennial grass  
Alisma 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 bisceptrum Twincrest onion Perennial herb (bulb)  
Allium bisceptrum var. bisceptrum Twin crest onion Perennial herb (bulb)  
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) 1
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 parvum Dwarf onion Perennial herb (bulb) 1
Allium peninsulare Mexicali onion Perennial herb (bulb)  
Allium peninsulare var. peninsulare Mexicali onion Perennial herb (bulb)  
Allium siskiyouense Siskiyou onion Perennial herb (bulb)  
Allium validum Swamp onion Perennial herb (bulb) 5
Allotropa virgata Sugarstick Perennial herb (mycoparasitic)  
Alopecurus aequalis Sonoma alopecurus Perennial grass  
Alopecurus aequalis var. aequalis Shortawn foxtail Perennial grass  
Ambrosia bipinnatifida Beach bur Perennial herb 10
Ambrosia psilostachya Ragweed Perennial herb 6
Ambrosia salsola var. fasciculata Burrobrush Perennial herb  
Anaphalis margaritacea Pearly everlasting Perennial herb 17
Anemone deltoidea Windflower Perennial herb 2
Anemone drummondii Drummond's anemone Perennial herb 2
Anemone lyallii Little mountain thimbleweed Perennial herb  
Anemone occidentalis Western anemone Perennial herb 3
Anemone oregana Western wood anenome Perennial herb  
Anemone oregana var. oregana Blue windflower Perennial herb  
Angelica arguta Lyall's angelica Perennial herb  
Angelica breweri Brewer's angelica Perennial herb 1
Angelica californica California angelica Perennial herb 1
Angelica tomentosa Woolly angelica Perennial herb 2
Anisocarpus madioides Woodland madia Perennial herb 2
Anisocarpus scabridus Scabrid alpine tarplant Perennial herb  
Antennaria argentea Silvery everlasting Perennial herb  
Antennaria dimorpha Gray cushion pussytoes Perennial herb  
Antennaria geyeri Geyer's pussytoes Perennial herb  
Antennaria howellii Howell's pussytoes Perennial herb  
Antennaria howellii ssp. howellii Howell's pussytoes Perennial herb  
Antennaria lanata Woolly pussy toes 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. confinis Rosy pussytoes Perennial herb  
Antennaria rosea ssp. rosea Rosy pussytoes Perennial herb  
Antennaria sawyeri Sawyer's pussy-toes Perennial herb  
Aphyllon fasciculatum Clustered broomrape Perennial herb (parasitic)  
Apocynum androsaemifolium Spreading dogbane Perennial herb 1
Apocynum cannabinum Indian hemp Perennial herb 11
Aquilegia eximia Vanhoutte's columbine Perennial herb 5
Aquilegia formosa Columbine Perennial herb 54
Arabis Xdivaricarpa Hybrid drummond's rock cress Perennial herb  
Arabis bodiensis Bodie hills rock cress Perennial herb  
Arabis breweri Brewer's rock cress Perennial herb 1
Arabis breweri var. austiniae Rebecca austin's rock cress Perennial herb  
Arabis breweri var. breweri Brewer's rock cress Perennial herb  
Arabis breweri var. pecuniaria San bernardino rock cress Perennial herb  
Arabis cobrensis Masonic rock cress Perennial herb  
Arabis constancei Constance's rock cress Perennial herb  
Arabis davidsonii Davidson's rock cress Perennial herb  
Arabis dispar Pinyon rock cress Perennial herb  
Arabis drummondii Drummond's rock cress Perennial herb  
Arabis eschscholtziana Eschscholtz's hairy rockcress Perennial herb  
Arabis fernaldiana var. stylosa Stylose rock cress Perennial herb  
Arabis glabra Smooth rock cress Perennial herb  
Arabis glabra var. furcatipilis Smooth rock cress Perennial herb  
Arabis glabra var. glabra Smooth rock cress Perennial herb  
Arabis glaucovalvula Blue podded rock cress Perennial herb  
Arabis hirshbergiae Cuyamaca rockcress Perennial herb  
Arabis hirsuta Hairy rock cress Perennial herb 1
Arabis hirsuta var. glabrata Mountain rock cress Perennial herb  
Arabis hirsuta var. pycnocarpa Hairy fruit rock cress Perennial herb  
Arabis hoffmannii Hoffmann's rock cress Perennial herb  
Arabis holboellii var. pendulocarpa Weeping fruited holboell's rock cress Perennial herb  
Arabis holboellii var. pinetorum Pine rockcress Perennial herb  
Arabis holboellii var. retrofracta Backward splitting holboell's rock cress Perennial herb  
Arabis inyoensis Inyo rock cress Perennial herb  
Arabis johnstonii Johnston's rock cress Perennial herb  
Arabis koehleri Koehler's rockcress Perennial herb  
Arabis koehleri var. stipitata Koehler's stipitate rock cress Perennial herb  
Arabis lemmonii Lemmon's rock cress Perennial herb  
Arabis lemmonii var. depauperata Depauperate rockcress Perennial herb  
Arabis lemmonii var. lemmonii Lemmon's rock cress Perennial herb  
Arabis lyallii Lyall's rock cress Perennial herb 1
Arabis lyallii var. lyallii Lyall's rockcress Perennial herb  
Arabis lyallii var. nubigena Lyall's cloud cress Perennial herb  
Arabis macdonaldiana Mcdonald's rock cress Perennial herb  
Arabis microphylla Littleleaf rockcress Perennial herb  
Arabis microphylla var. microphylla Small leaved rock cress Perennial herb  
Arabis modesta Modest rock cress Perennial herb  
Arabis oregana Oregon rock cress Perennial herb  
Arabis parishii Parish's rock cress Perennial herb  
Arabis pendulina Rabbitear rockcress Perennial herb  
Arabis perennans Rock cress Perennial herb  
Arabis pinzliae Pinzl's rock cress Perennial herb  
Arabis platysperma Broad seeded rock cress Perennial herb  
Arabis platysperma var. howellii Howell's rockcress Perennial herb  
Arabis platysperma var. platysperma Broad seeded rock cress Perennial herb  
Arabis puberula Blue mountain rock cress Perennial herb  
Arabis pulchra Prince s rock cress Perennial herb 2
Arabis pulchra var. gracilis Slender & beautiful rock cress Perennial herb  
Arabis pulchra var. munciensis Darwin rock cress Perennial herb  
Arabis pulchra var. pulchra Beautiful rock cress Perennial herb 2
Arabis pycnocarpa Creamflower rockcress Perennial herb 1
Arabis pycnocarpa var. pycnocarpa Hairy fruit rock cress Perennial herb  
Arabis pygmaea Tulare county rock cress Perennial herb  
Arabis rectissima Bristlyleaf rockcress Perennial herb  
Arabis rectissima var. rectissima Bristly leaved rock cress Perennial herb  
Arabis repanda var. repanda Repand rock cress Perennial herb  
Arabis rigidissima Rigid rock cress Perennial herb  
Arabis rigidissima var. demota Carson range rock cress Perennial herb  
Arabis rigidissima var. rigidissima Trinity mtns. rock cress Perennial herb  
Arabis rollei Siskiyou rock cress Perennial herb  
Arabis serpentinicola Preston peak rock cress Perennial herb  
Arabis shockleyi Shockley's rock cress Perennial herb  
Arabis sparsiflora Sicklepod rock cress Perennial herb 2
Arabis sparsiflora var. arcuata Elegant rockress Perennial herb  
Arabis sparsiflora var. californica California elegant rock cress Perennial herb 1
Arabis sparsiflora var. sparsiflora Elegant rock cress Perennial herb 2
Arabis sparsiflora var. subvillosa Hairy stemmed elegant rock cress Perennial herb  
Arabis subpinnatifida Klamath rockcress Perennial herb  
Arabis suffrutescens Woody rock cress Perennial herb  
Arabis suffrutescens var. suffrutescens Woody rockcress Perennial herb  
Arabis tiehmii Tiehm's rock cress Perennial herb  
Aralia californica California spikenard Perennial herb 17
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 aculeata Prickly sandwort Perennial herb  
Arenaria congesta Capitate sandwort Perennial herb 1
Arenaria congesta var. charlestonensis Charleston mountains sandwort Perennial herb  
Arenaria congesta var. congesta Capitate sandwort Perennial herb  
Arenaria congesta var. crassula Rough sandwort Perennial herb  
Arenaria congesta var. simulans Capitate sandwort Perennial herb  
Arenaria congesta var. subcongesta Capitate sandwort Perennial herb  
Arenaria congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Arenaria kingii ssp. compacta King's sandwort Perennial herb  
Arenaria kingii var. glabrescens King's smooth sandwort Perennial herb  
Arenaria lanuginosa ssp. saxosa Spreading sandwort Perennial herb  
Arenaria macradenia Sandwort Perennial herb  
Arenaria macradenia ssp. ferrisiae Ferris' sandwort Perennial herb  
Arenaria macradenia var. arcuifolia Desert sandwort Perennial herb  
Arenaria macradenia var. kuschei Forest camp sandwort Perennial herb  
Arenaria macradenia var. macradenia Desert sandwort Perennial herb  
Arenaria pumicola var. californica Pumice sandwort Perennial herb  
Arenaria ursina Big bear valley sandwort Perennial herb  
Aristida californica var. californica California three aw Perennial grass  
Aristida orcuttiana Orcutt's threeawn Perennial grass  
Arnica Xdiversifolia Rayless arnica Perennial herb  
Arnica amplexicaulis Streambank arnica Perennial herb 3
Arnica cernua Serpentine arnica Perennial herb (rhizomatous)  
Arnica chamissonis ssp. foliosa Meadow arnica Perennial herb 5
Arnica cordifolia Heart leaved arnica Perennial herb 1
Arnica cordifolia var. cordifolia Heart leaved arnica Perennial herb  
Arnica cordifolia var. pumila Dwarf heart leaved arnica Perennial herb 1
Arnica dealbata Mock leopardbane Perennial herb  
Arnica discoidea Rayless arnica Perennial herb  
Arnica diversifolia Lawless arnica Perennial herb  
Arnica lanceolata Clasping arnica Perennial herb  
Arnica lanceolata ssp. prima Clasping arnica Perennial herb 3
Arnica latifolia Mountain arnica Perennial herb  
Arnica longifolia Seep spring arnica Perennial herb  
Arnica mollis Cordilleran arnica Perennial herb 1
Arnica nevadensis Sierra arnica Perennial herb 1
Arnica ovata Sticky leaf arnica Perennial herb  
Arnica parryi ssp. parryi Parry's arnica Perennial herb  
Arnica spathulata Klamath arnica Perennial herb (rhizomatous)  
Arnica tomentella Recondite arnica Perennial herb 1
Arnica venosa Veiny arnica Perennial herb (rhizomatous)  
Arnica viscosa Mt. shasta arnica Perennial herb (rhizomatous)  
Artemisia campestris ssp. borealis Northern sagewort Perennial herb  
Artemisia campestris var. scouleriana Field sagewort Perennial herb  
Artemisia douglasiana California mugwort Perennial herb 35
Artemisia ludoviciana Silver wormwood Perennial herb 17
Artemisia norvegica Alpine sagewort Perennial herb  
Artemisia norvegica ssp. saxatilis Boreal sagewort Perennial herb  
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 4
Asarum caudatum Creeping wild ginger Perennial herb 40
Asarum hartwegii Hartweg's wild ginger Perennial herb 4
Asclepias californica ssp. greenei Greene's california milkweed Perennial herb 6
Asclepias cordifolia Purple milkweed Perennial herb 7
Asclepias cryptoceras ssp. davisii Davis' humboldt mountains milkweed Perennial herb  
Asclepias fascicularis narrow leaf milkweed Perennial herb 32
Asclepias solanoana Serpentine milkweed Perennial herb  
Asclepias speciosa Showy milkweed Perennial herb 41
Asclepias vestita var. parishii Parish's woolly milkweed Perennial herb  
Aster alpigenus var. andersonii Alpine aster Perennial herb 1
Aster ascendens Long leaved aster Perennial herb  
Aster bernardinus San bernardino aster Perennial herb  
Aster breweri Brewer's aster Perennial herb  
Aster brickellioides Rayless leafy aster Perennial herb  
Aster campestris Western meadow aster Perennial herb  
Aster chilensis California aster Perennial herb 38
Aster eatonii Eaton's aster Perennial herb 2
Aster engelmannii Engelmann's aster Perennial herb 2
Aster foliaceus Leafy aster Perennial herb 1
Aster foliaceus var. apricus Parry's leafy aster Perennial herb 1
Aster foliaceus var. lyallii Lyall's leafy aster Perennial herb  
Aster foliaceus var. parryi Parry's aster Perennial herb 1
Aster greatae Greata's aster Perennial herb (rhizomatous)  
Aster integrifolius Entire leaved aster Perennial herb  
Aster lanceolatus ssp. hesperius Western lance leaf aster Perennial herb  
Aster ledophyllus Cascade aster Perennial herb  
Aster lentus Suisun marsh aster Perennial herb (rhizomatous) 2
Aster occidentalis Western mountain aster Perennial herb 1
Aster occidentalis var. occidentalis Western mountain aster Perennial herb  
Aster occidentalis var. yosemitanus Western bog aster Perennial herb  
Aster oregonensis Oregon aster Perennial herb  
Aster pauciflorus Marsh alkali aster Perennial herb  
Aster peirsonii Peirson's oreastrum aster Perennial herb  
Aster radulinus Rough leaved aster Perennial herb 2
Aster scopulorum Lava aster Perennial herb  
Astragalus accidens Rogue river milkvetch Perennial herb  
Astragalus accidens var. hendersonii Henderson's milk vetch Perennial herb  
Astragalus monoensis var. monoensis Mono milk vetch Perennial herb  
Astragalus monoensis var. ravenii Raven's milk vetch Perennial herb  
Astragalus purshii Pursh's sheeppod Perennial herb 2
Astragalus purshii var. lectulus Pursh's milk vetch Perennial herb  
Astragalus purshii var. purshii Pursh's milk vetch Perennial herb  
Astragalus purshii var. tinctus Pursh's milk vetch Perennial herb 1
Astragalus rattanii var. rattanii Rattan's milk vetch Perennial herb  
Astragalus whitneyi Whitney's milk vetch Perennial herb 1
Astragalus whitneyi var. lenophyllus Whitney's milk vetch Perennial herb  
Astragalus whitneyi var. siskiyouensis Siskiyou milk vetch Perennial herb  
Asyneuma prenanthoides California harebell Perennial herb 2
Atriplex californica California salt bush Perennial herb 1
Baccharis douglasii Salt marsh baccharis Perennial herb 16
Bahia dissecta Ragged leaf bahia Perennial herb  
Baileya multiradiata var. multiradiata Wild marigold Perennial herb 19
Balsamorhiza deltoidea Deltoid balsam root Perennial herb 2
Balsamorhiza hookeri var. lanata Woolly balsamroot Perennial herb  
Balsamorhiza lanata Woolly balsamroot Perennial herb  
Balsamorhiza macrolepis var. macrolepis Big scale balsamroot Perennial herb  
Balsamorhiza macrolepis var. platylepis Flat scale balsam root Perennial herb 1
Balsamorhiza sagittata Arrow leaved balsamroot Perennial herb 7
Balsamorhiza sericea Silky balsamroot Perennial herb  
Barbarea orthoceras Winter cress Perennial herb 1
Bensoniella oregona Bensoniella Perennial herb  
Bidens cernua var. cernua Nodding bur marigold Perennial herb  
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 breweri ssp. shastaensis Shasta rockcress Perennial herb  
Boechera divaricarpa Spreadingpod rockcress Perennial herb  
Boechera howellii Howell's rockcress Perennial herb  
Boechera koehleri Koehler's rockcress Perennial herb  
Boechera lyallii Lyall's rockcress Perennial herb 1
Boechera microphylla var. microphylla Small-leaved rock cress Perennial herb  
Boechera pauciflora Hairy stem rockcress Perennial herb  
Boechera pinetorum Woodland rockcress Perennial herb  
Boechera platysperma Pioneer rockcress Perennial herb  
Boechera pratincola Meadow rockcress Perennial herb  
Boechera puberula Silver rockcress Perennial herb  
Boechera retrofracta Reflexed rockcress Perennial herb  
Boechera rigidissima Trinity mountain rockcress Perennial herb  
Boechera serpenticola Serpentine rockcress Perennial herb  
Boechera sparsiflora Sicklepod rockcress Perennial herb 2
Boechera stricta Drummond's rockcress Perennial herb  
Boechera subpinnatifida Klamath rockcress Perennial herb  
Boechera suffrutescens Woody rockcress Perennial herb  
Bolboschoenus maritimus Alkali bulrush Perennial grass 15
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 7
Brickellia californica California brickellia Perennial herb 15
Brickellia californica var. californica California brickellbush Perennial herb 2
Brickellia grandiflora Large flowered brickelbush Perennial herb  
Brickellia greenei Greene's brickelbush Perennial herb  
Brickellia watsonii Watson's brickellia Perennial herb  
Brodiaea californica var. californica California brodiaea Perennial herb 7
Brodiaea californica var. leptandra Sonoma brodiaea Perennial herb 1
Brodiaea coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. rosea Indian valley brodiaea Perennial herb (bulb)  
Brodiaea elegans Harvest brodiaea Perennial herb 8
Brodiaea elegans ssp. elegans Harvest brodiaea Perennial herb 1
Brodiaea purdyi Purdy's brodiaea Perennial herb 2
Brodiaea rosea Indian valley brodiaea Perennial herb (bulb)  
Bromus anomalus Nodding brome Perennial grass 1
Bromus carinatus California bromegrass Perennial grass 22
Bromus carinatus var. carinatus California brome Perennial grass 22
Bromus carinatus var. marginatus Mountain brome Perennial grass 6
Bromus carinatus var. maritimus Seaside brome Perennial grass 1
Bromus ciliatus var. ciliatus Fringed brome Perennial grass 2
Bromus marginatus Mountain brome Perennial grass 6
Bromus suksdorfii Suksdorf's bromegrass Perennial grass 1
Cacaliopsis nardosmia Cut leaf cacaliopsis Perennial herb  
Calamagrostis breweri Short hair reedgrass Perennial grass 1
Calamagrostis canadensis Canada reedgrass Perennial grass 5
Calamagrostis canadensis var. langsdorffii Bluejoint Perennial grass (rhizomatous)  
Calamagrostis koelerioides Fire reedgrass Perennial grass  
Calliscirpus criniger Cotton grass Perennial grass  
Callitriche hermaphroditica Northern water starwort Perennial herb  
Calochortus albus var. albus Fairy lantern Perennial herb 1
Calochortus albus var. rubellus Pink fairy lanterns Perennial herb 6
Calochortus amabilis Golden fairy lantern Perennial herb 3
Calochortus coeruleus Blue star tulip Perennial herb 1
Calochortus elegans Elegant star tulip Perennial herb  
Calochortus nudus Naked mariposa lily Perennial herb 1
Calochortus tolmiei Hairy star tulip Perennial herb 5
Calochortus umbellatus Oakland mariposa lily Perennial herb (bulb) 2
Calochortus uniflorus Large flowered star tulip Perennial herb 4
Calochortus vestae Yellow mariposa Perennial herb 2
Calochortus weedii var. vestus Late flowered mariposa lily Perennial herb (bulb) 1
Caltha leptosepala White marsh marigold Perennial herb 3
Caltha leptosepala ssp. howellii Howell's marsh marigold Perennial herb 4
Caltha leptosepala var. biflora Marsh marigold Perennial herb 3
Calypso bulbosa Fairy slipper Perennial herb 1
Calyptridium monospermum One seeded pussypaws Perennial herb  
Calystegia malacophylla Morning glory Perennial herb  
Calystegia malacophylla ssp. malacophylla Sierra morning glory Perennial herb  
Calystegia malacophylla var. berryi Berry's morning glory Perennial herb (rhizomatous)  
Calystegia occidentalis Bush morning glory Perennial herb 2
Calystegia occidentalis ssp. occidentalis Modoc morning glory Perennial herb  
Calystegia occidentalis var. tomentella Kern morning glory Perennial herb  
Calystegia purpurata Smooth western morning glory Perennial herb 4
Calystegia purpurata ssp. purpurata Smooth western morning glory Perennial herb 1
Camassia leichtlinii Large camas Perennial herb 10
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 12
Camissonia cheiranthifolia ssp. cheiranthifolia Beach evening primrose Perennial herb 3
Camissonia cheiranthifolia ssp. suffruticosa Shrubby beach primrose Perennial herb  
Camissonia ovata Sun cup Perennial herb 2
Camissonia subacaulis Long leaved suncup Perennial herb  
Camissonia tanacetifolia Tansy leaf evening primrose Perennial herb  
Camissonia tanacetifolia ssp. quadriperforata Sierra valley evening primrose Perennial herb  
Camissonia tanacetifolia ssp. tanacetifolia Tansy leaved suncup Perennial herb  
Campanula prenanthoides Nodding harebell Perennial herb 2
Campanula rotundifolia Round leaf harebell Perennial herb 12
Campanula scabrella Rough harebell Perennial herb (rhizomatous)  
Campanula scouleri Scouler's harebell Perennial herb  
Campanula wilkinsiana Wilkin's harebell Perennial herb (rhizomatous)  
Cardamine breweri var. breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. orbicularis Heart leaved bitter cress Perennial herb  
Cardamine californica Bitter cress Perennial herb  
Cardamine californica var. californica Milk maids Perennial herb  
Cardamine californica var. cardiophylla Milk maids Perennial herb  
Cardamine californica var. cuneata Milk maids Perennial herb  
Cardamine californica var. integrifolia California toothwort Perennial herb  
Cardamine californica var. sinuata Milk maids Perennial herb  
Cardamine cordifolia var. lyallii Lyall's bitter cress Perennial herb  
Cardamine nuttallii Nuttall's toothwort Perennial herb  
Cardamine nuttallii var. covilleana Coville's toothwort Perennial herb  
Cardamine nuttallii var. dissecta Tooth leaved nuttall's toothwort Perennial herb  
Cardamine nuttallii var. nuttallii Nuttall's toothwort Perennial herb  
Cardamine pachystigma Rock toothwort Perennial herb  
Cardamine pachystigma var. pachystigma Rock toothwort Perennial herb  
Carex abrupta Abrupt beaked sedge Perennial grass  
Carex albida White sedge Perennial grass (rhizomatous)  
Carex amplectens Clasping bract sedge Perennial grass 1
Carex amplifolia Ample leaved sedge Perennial grass 2
Carex angustata Narrow leaved sedge Perennial grass 1
Carex aquatilis Water sedge Perennial grass 5
Carex athrostachya Slender leaved sedge Perennial grass 2
Carex aurea Golden fruited sedge Perennial grass  
Carex barbarae Valley sedge Perennial grass 24
Carex bella Southwestern showy sedge Perennial grass  
Carex bolanderi Bolander's sedge Perennial grass  
Carex brainerdii Brainerd's sedge Perennial grass  
Carex breweri var. breweri Brewer's sedge Perennial grass  
Carex buxbaumii Buxbaum's sedge Perennial grass  
Carex californica California sedge Perennial grass (rhizomatous)  
Carex capitata ssp. capitata Capitate sedge Perennial grass  
Carex concinnoides Northwestern sedge Perennial grass  
Carex constanceana Contance's sedge Perennial grass  
Carex deflexa Mountain mat sedge Perennial grass  
Carex deflexa var. boottii Mountain mat sedge Perennial grass  
Carex densa Sedge Perennial grass 9
Carex deweyana Dewey sedge Perennial grass 5
Carex deweyana ssp. leptopoda Dewey's taper fruit sedge Perennial grass 3
Carex dudleyi Dudley's sedge Perennial grass 9
Carex echinata Bristle fruit sedge Perennial grass 1
Carex echinata ssp. echinata Bristle fruit sedge Perennial grass  
Carex echinata ssp. phyllomanica Star sedge Perennial grass  
Carex eleocharis Spikerush sedge Perennial grass (rhizomatous)  
Carex exsiccata Western inflated sedge Perennial grass 2
Carex feta Green sheathed sedge Perennial grass  
Carex fissuricola Cleft 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 halliana Hall's sedge Perennial grass (rhizomatous)  
Carex harfordii Monterey sedge Perennial grass 2
Carex hassei Hasse's sedge Perennial grass  
Carex hendersonii Henderson's sedge Perennial grass  
Carex heteroneura Variable nerved sedge Perennial grass  
Carex heteroneura var. epapillosa Smooth nerve sedge Perennial grass  
Carex heteroneura var. heteroneura Vari nerved sedge Perennial grass  
Carex hoodii Hood's sedge Perennial grass  
Carex hystericina Bottlebrush sedge Perennial grass (rhizomatous) 1
Carex incurviformis var. danaensis Coastal sand sedge Perennial grass (rhizomatous)  
Carex integra Smooth beak sedge Perennial grass  
Carex interior Inland sedge Perennial grass 1
Carex jonesii Jones' sedge Perennial grass  
Carex klamathensis Perennial grass  
Carex lemmonii Lemmon's sedge Perennial grass  
Carex lenticularis Lakeshore sedge Perennial grass 1
Carex lenticularis var. impressa Lakeshore sedge Perennial grass  
Carex lenticularis var. lipocarpa Fat fruited sedge Perennial grass 1
Carex leporina Hare or oval sedge Perennial grass 1
Carex leporinella Sierra hare sedge Perennial grass  
Carex leptalea Flaccid sedge Perennial grass (rhizomatous)  
Carex leptopoda Slender-footed sedge Perennial grass 5
Carex luzulifolia Littleleaf sedge Perennial grass  
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 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 neurophora Alpine nerve sedge Perennial grass  
Carex nigricans Black alpine sedge Perennial grass  
Carex nudata Torrent sedge Perennial grass 13
Carex obnupta Slough sedge Perennial grass 17
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 29
Carex pellita Woolly sedge Perennial grass 7
Carex praticola Meadow sedge Perennial grass  
Carex preslii Presl's sedge Perennial grass 1
Carex pyrenaica Pyrenean sedge Perennial grass  
Carex pyrenaica ssp. pyrenaica Pyrenean sedge Perennial grass  
Carex rossii Ross' sedge Perennial grass 1
Carex scabriuscula Siskiyou sedge Perennial grass (rhizomatous)  
Carex scirpoidea var. pseudoscirpoidea Western single spike sedge Perennial grass  
Carex scopulorum Mountain sedge Perennial grass  
Carex scopulorum var. bracteosa Bracted sedge Perennial grass  
Carex senta Rough sedge Perennial grass 3
Carex serratodens Bifid sedge Perennial grass 3
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 subfusca Brown sedge Perennial grass 7
Carex tompkinsii Tompkins's sedge Perennial grass (rhizomatous)  
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 vesicaria var. vesicaria Inflated sedge Perennial grass 2
Carex vulpinoidea Fox sedge Perennial grass 3
Carex whitneyi Whitney's sedge Perennial grass  
Castilleja affinis Indian paintbrush Perennial herb 1
Castilleja angustifolia Desert paintbrush Perennial herb 3
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 brevilobata Short-lobed paintbrush Perennial herb  
Castilleja gleasonii Mt. gleason indian paintbrush Perennial herb (hemiparasitic)  
Castilleja hispida ssp. brevilobata Short lobed indian paintbrush Perennial herb (hemiparasitic)  
Castilleja inflata Indian paintbrush Perennial herb  
Castilleja lanata ssp. hololeuca White felted indian paintbrush Perennial herb (hemiparasitic)  
Castilleja latifolia Seaside paintbrush Perennial herb (hemiparasitic) 2
Castilleja miniata Great red paintbrush Perennial herb 6
Castilleja miniata ssp. miniata Scarlet indian paintbrush Perennial herb  
Castilleja parviflora Mountain paintbrush Perennial herb  
Castilleja parviflora var. parviflora Smallflower indian paintbrush Perennial herb  
Castilleja pilosa Pilose paintbrush Perennial herb  
Castilleja pruinosa Frosted paintbrush Perennial herb (hemiparasitic)  
Castilleja schizotricha Split hair indian paintbrush Perennial herb (hemiparasitic)  
Caulanthus crassicaulis var. crassicaulis Thick stemmed caulanthus Perennial herb  
Caulanthus crassicaulis var. glaber Smooth thick stemmed caulanthus Perennial herb  
Caulanthus major var. major Slender wild cabbage Perennial herb  
Caulostramina jaegeri Jaeger's caulostramina Perennial herb  
Centaurium namophilum var. namophilum Spring loving centaury Perennial herb  
Cephalanthera austiniae Phantom orchid Perennial herb  
Cerastium arvense Meadow chickweed Perennial herb 1
Cerastium arvense ssp. strictum Field chickweed Perennial herb  
Cerastium beeringianum ssp. earlei Bering chickweed Perennial herb 1
Cerastium beeringianum var. capillare Mouse ear chickweed Perennial herb 1
Chaenactis suffrutescens Shasta chaenactis Perennial herb  
Chamaesyce albomarginata Rattlesnake weed Perennial herb  
Chamaesyce arizonica Arizona spurge Perennial herb  
Chamaesyce fendleri Fendler's spurge Perennial herb  
Chamaesyce melanadenia Spurge Perennial herb  
Chamaesyce parishii Parish's spurge Perennial herb  
Chamaesyce pediculifera Carrizo mountain spurge Perennial herb  
Chamaesyce polycarpa Small seeded spurge Perennial herb  
Chamaesyce polycarpa var. hirtella Hairy small seeded spurge Perennial herb  
Chamaesyce polycarpa var. polycarpa Small seeded spurge Perennial herb  
Chamaesyce vallis-mortae Death valley spurge Perennial herb  
Chamerion angustifolium Fireweed Perennial herb 14
Chamerion angustifolium ssp. circumvagum Fireweed Perennial herb 2
Chimaphila menziesii Little prince's pine Perennial herb  
Chimaphila umbellata Blake's prince's pine Perennial herb  
Chlorogalum pomeridianum Amole Perennial herb 19
Chlorogalum pomeridianum var. pomeridianum Common soaproot Perennial herb 2
Chrysothamnus albidus White flowered rabbitbrush Perennial herb  
Chrysothamnus gramineus Panamint rock goldenrod Perennial herb  
Chrysothamnus paniculatus Blackbanded rabbit brush Perennial herb 1
Cicuta maculata var. maculata Spotted water hemlock Perennial herb  
Circaea alpina Small enchanter's nightshade Perennial herb  
Circaea alpina ssp. pacifica Pacific enchanter's nightshade Perennial herb  
Cirsium andersonii Anderson's thistle Perennial herb  
Cirsium canovirens Gray green thistle Perennial herb  
Cirsium congdonii Congdon's thistle Perennial herb  
Cirsium cymosum Peregrine thistle Perennial herb  
Cirsium cymosum var. cymosum Peregrine thistle Perennial herb  
Cirsium douglasii Swamp thistle Perennial herb 1
Cirsium douglasii var. breweri Brewer's swamp thistle Perennial herb  
Cirsium douglasii var. douglasii Douglas' swamp thistle Perennial herb  
Cirsium loncholepis La graciosa thistle Perennial herb  
Cirsium occidentale Western thistle Perennial herb 9
Cirsium occidentale var. californicum California thistle Perennial herb  
Cirsium occidentale var. candidissimum Snowy thistle Perennial herb  
Cirsium occidentale var. venustum Coulter's thistle Perennial herb  
Cirsium remotifolium Few leaved thistle Perennial herb  
Cirsium remotifolium var. odontolepis Pacific fringed thistle Perennial herb  
Cirsium subniveum Jackson hole thistle Perennial herb  
Claytonia cordifolia Heart leaf spring beauty Perennial herb  
Claytonia lanceolata Western spring beauty Perennial herb  
Claytonia nevadensis Sierra spring beauty Perennial herb 1
Claytonia palustris Marsh claytonia Perennial herb  
Claytonia sibirica Candy flower Perennial herb 8
Claytonia umbellata Great basin claytonia Perennial herb  
Clematis lasiantha Pipestem Perennial herb, Vine 27
Clematis ligusticifolia Creek clematis Perennial herb, Vine 32
Clematis ligusticifolia var. brevifolia Western white clematis Perennial herb, Vine 32
Clematis ligusticifolia var. californica California clematis Perennial herb, Vine 32
Clematis ligusticifolia var. ligusticifolia Western white clematis Perennial herb, Vine 32
Clinopodium douglasii Yerba buena Perennial herb 34
Clintonia uniflora Bride's bonnet Perennial herb 1
Comandra umbellata Bastard toadflax Perennial herb (parasitic)  
Comandra umbellata ssp. californica Bastard toad flax Perennial herb (parasitic)  
Coptis laciniata Oregon golden thread Perennial herb  
Corallorhiza maculata Summer coral root Perennial herb  
Corallorhiza mertensiana Merten's coral root Perennial herb  
Corallorhiza striata Striped coral root Perennial herb  
Corallorhiza striata var. striata Hooded coralroot Perennial herb  
Corallorhiza striata var. vreelandii Striped coral root Perennial herb  
Corallorhiza trifida Northern coral root Perennial herb (rhizomatous)  
Coreopsis maritima Sea dahlia Perennial herb 6
Crepis acuminata Tall hawksbeard Perennial herb  
Crepis bakeri Baker's hawksbeard Perennial herb  
Crepis bakeri ssp. bakeri Baker's hawksbeard Perennial herb  
Crepis modocensis Modoc hawksbeard Perennial herb  
Crepis monticola Mountain hawk's beard Perennial herb  
Crepis occidentalis Western hawk's beard Perennial herb  
Crepis occidentalis ssp. conjuncta Largeflower hawksbeard Perennial herb  
Crepis occidentalis ssp. pumila Largeflower hawksbeard Perennial herb  
Crepis pleurocarpa Naked stemmed hawksbeard Perennial herb  
Cryptantha schoolcraftii Schoolcraft's cryptantha Perennial herb  
Cryptantha sobolifera Sierra perennial cryptantha Perennial herb  
Cycladenia humilis Cycladenia Perennial herb 1
Cycladenia humilis var. humilis Cycladenia Perennial herb  
Cylindropuntia Xmunzii Munz's cholla Perennial herb (stem succulent) 2
Cymopterus terebinthinus Turpentine cymopterus Perennial herb  
Cymopterus terebinthinus var. californicus Turpentine cymopterus Perennial herb  
Cynanchum utahense Vine milkweed Perennial herb  
Cynoglossum grande Houndstongue Perennial herb 5
Cynoglossum occidentale Hound's tongue Perennial herb  
Cyperus eragrostis Tall cyperus Perennial grass 13
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 20
Danthonia californica var. americana American oatgrass Perennial grass 20
Danthonia californica var. californica California oatgrass Perennial grass 20
Danthonia intermedia Timber oatgrass Perennial grass 2
Danthonia unispicata One spiked oatgrass Perennial grass  
Darlingtonia californica California pitcherplant Perennial herb (carnivorous) 2
Darmera peltata Umbrella plant Perennial herb 13
Datisca glomerata Durango root Perennial herb 2
Delphinium andersonii Anderson larkspur Perennial herb 4
Delphinium antoninum Anthony peak larkspur Perennial herb  
Delphinium decorum 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 gypsophilum ssp. gypsophilum Gypsum loving larkspur Perennial herb 1
Delphinium hesperium Western larkspur Perennial herb  
Delphinium inflexum Hybrid parry's larkspur Perennial herb 6
Delphinium nudicaule Canyon larkspur Perennial herb 3
Delphinium nuttallianum Nuttall's larkspur Perennial herb 2
Delphinium trolliifolium Cow poison Perennial herb 3
Delphinium variegatum f. superbum Royal larkspur Perennial herb  
Deschampsia atropurpurea Mountain hair grass Perennial grass 1
Deschampsia cespitosa Tufted hair grass Perennial grass 49
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 16
Descurainia incana Mountain tansy mustard Perennial herb  
Descurainia obtusa ssp. adenophora White tansy mustard Perennial herb  
Dicentra chrysantha Golden eardrops Perennial herb 4
Dicentra formosa Pacific bleedinghearts Perennial herb 24
Dicentra formosa ssp. formosa Bleeding heart Perennial herb 2
Dicentra ochroleuca Yellow bleeding heart Perennial herb  
Dicentra pauciflora Few flowered bleeding heart Perennial herb  
Dicentra uniflora Steers head Perennial herb  
Dichanthelium lanuginosum var. thermale Geysers dichanthelium Perennial grass  
Dichelostemma Xvenustum Perennial herb  
Dichelostemma capitatum Blue dicks Perennial herb 15
Dichelostemma capitatum ssp. capitatum Wild hyacinth Perennial herb 3
Dichelostemma congestum Fork toothed ookow Perennial herb 7
Dichelostemma ida-maia Firecracker flower Perennial herb 7
Dichelostemma multiflorum Many flowered brodiaea Perennial herb 6
Dichelostemma volubile Twining brodiaea Perennial herb 3
Dieteria canescens Hoary aster Perennial herb 1
Dieteria canescens var. canescens Hoary aster Perennial herb  
Dieteria canescens var. shastensis Shasta aster Perennial herb  
Disporum hookeri Fairy bells Perennial herb 11
Disporum smithii Fairy lantern Perennial herb 5
Distichlis spicata Salt grass Perennial grass 25
Ditaxis californica California ditaxis Perennial herb  
Ditaxis clariana Glandular ditaxis Perennial herb  
Dodecatheon alpinum Alpine shooting star Perennial herb 1
Dodecatheon clevelandii Padre's shooting star Perennial herb 9
Dodecatheon clevelandii ssp. clevelandii Cleveland's shooting star Perennial herb  
Dodecatheon clevelandii ssp. insulare Padre's shooting star Perennial herb 2
Dodecatheon clevelandii ssp. patulum Padre's shooting star Perennial herb  
Dodecatheon clevelandii ssp. sanctarum Padre's shooting star Perennial herb  
Dodecatheon conjugens Bonneville shooting star Perennial herb  
Dodecatheon hendersonii Shooting star Perennial herb 10
Dodecatheon jeffreyi Jeffrey's shooting star Perennial herb 3
Dodecatheon pulchellum Dark throated shooting star Perennial herb 6
Dodecatheon redolens Scented shooting star Perennial herb  
Dodecatheon subalpinum Sierra shooting star Perennial herb  
Draba aureola Golden draba Perennial herb  
Draba breweri var. breweri Cushion draba Perennial herb  
Draba breweri var. cana Hoary draba Perennial herb  
Draba carnosula Mt. eddy draba Perennial herb  
Draba corrugata var. corrugata Southern california draba Perennial herb  
Draba corrugata var. saxosa Southern california rock draba Perennial herb  
Draba howellii Howell's draba Perennial herb  
Draba lemmonii var. lemmonii Lemmon's draba Perennial herb  
Draba lonchocarpa var. lonchocarpa Spear fruited draba Perennial herb  
Draba oligosperma var. oligosperma Few seeded draba Perennial herb  
Draba oligosperma var. subsessilis Alpine few seeded draba Perennial herb  
Draba paysonii var. treleasei Trelease's draba Perennial herb  
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 lactea Perennial herb 9
Drymocallis lactea var. austiniae Austin's woodbeauty Perennial herb  
Drymocallis lactea var. lactea Sierran woodbeauty Perennial herb  
Drymocallis pseudorupestris False rock loving cinquefoil Perennial herb 1
Drymocallis pseudorupestris var. saxicola Cliff woodbeauty Perennial herb  
Drymocallis rhomboidea Common cinquefoil Perennial herb  
Dudleya abramsii ssp. parva Conejo dudleya Perennial herb  
Dudleya attenuata ssp. orcuttii Orcutt's dudleya Perennial herb 2
Dudleya blochmaniae ssp. brevifolia Short leaved dudleya Perennial herb  
Dudleya calcicola Limestone dudleya Perennial herb  
Dudleya cymosa ssp. costafolia Pierpoint springs dudleya Perennial herb  
Dudleya hassei Hasse's dudleya Perennial herb 9
Dudleya pulverulenta ssp. arizonica Arizona chalk dudleya Perennial herb 1
Dudleya pulverulenta ssp. pulverulenta California chalk lettuce Perennial herb 14
Dudleya setchellii Santa clara valley dudleya Perennial herb 2
Dugaldia hoopesii Hoope's sneezeweed Perennial herb 6
Dulichium arundinaceum Three way sedge Perennial grass 1
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 montevidensis Montevideo spike rush Perennial grass 2
Eleocharis parishii Parish's spike rush Perennial grass  
Eleocharis pauciflora Few flowered spike rush Perennial grass  
Eleocharis quinqueflora Fewflower spikerush Perennial grass  
Eleocharis rostellata Walking sedge Perennial grass  
Eleocharis suksdorfiana Suksdorf's spikerush Perennial grass  
Elymus Xhansenii Perennial grass  
Elymus Xsaundersii Perennial grass  
Elymus elymoides Squirrel tail grass Perennial grass 14
Elymus elymoides ssp. brevifolius Short leaved squirreltail Perennial grass  
Elymus elymoides ssp. californicus California squirreltail Perennial grass  
Elymus elymoides ssp. elymoides Squirreltail Perennial grass  
Elymus elymoides var. californicus Squirrel tail grass Perennial grass  
Elymus elymoides var. elymoides Squirrel tail grass Perennial grass  
Elymus glaucus Blue wildrye Perennial grass 34
Elymus glaucus ssp. glaucus Blue wild rye Perennial grass 3
Elymus glaucus ssp. jepsonii Western rye grass Perennial grass 3
Elymus lanceolatus Thickspike wheatgrass Perennial grass 3
Elymus lanceolatus ssp. lanceolatus Northern wheatgrass Perennial grass 4
Elymus multisetus Big squirreltail grass Perennial grass 12
Elymus spicatus Blue bunch wheat grass Perennial grass 7
Elymus stebbinsii ssp. stebbinsii Parish wheatgrass Perennial grass  
Elymus trachycaulus Slender wheatgrass Perennial grass 8
Elymus trachycaulus ssp. subsecundus Bearded wheatgrass Perennial grass 2
Elymus trachycaulus ssp. trachycaulus Slender wheatgrass Perennial grass 7
Elymus triticoides Beardless wild rye Perennial grass 31
Elytrigia juncea Russian wheatgrass Perennial grass  
Enemion stipitatum Siskiyou false rue anemone Perennial herb  
Epilobium angustifolium ssp. angustifolium Fireweed Perennial herb 1
Epilobium angustifolium ssp. circumvagum Fireweed Perennial herb 1
Epilobium canum California fuchsia Perennial herb 49
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 clavatum Club fruit willowherb 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 latifolium River beauty Perennial herb 3
Epilobium nivium Snow mtn. willowherb Perennial herb  
Epilobium oreganum Oregon fireweed Perennial herb  
Epilobium septentrionale Humboldt county fuchsia Perennial herb 7
Epilobium siskiyouense Siskiyou fireweed Perennial herb  
Epipactis gigantea Stream orchid Perennial herb 15
Eremogone congesta Capitate sandwort Perennial herb 1
Eremogone congesta var. congesta Capitate sandwort Perennial herb  
Eremogone congesta var. crassula Rough sandwort Perennial herb  
Eremogone congesta var. subcongesta Capitate sandwort Perennial herb  
Eremogone congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Erigeron acris Bitter fleabane Perennial herb  
Erigeron aliceae Alice eastwood's fleabane Perennial herb  
Erigeron angustatus Narrow leaved daisy Perennial herb  
Erigeron austiniae Rebecca austin's fleabane Perennial herb  
Erigeron bloomeri Scabland fleabane Perennial herb  
Erigeron bloomeri var. bloomeri Scabland fleabane Perennial herb  
Erigeron bloomeri var. nudatus Waldo daisy Perennial herb  
Erigeron breweri var. klamathensis Klamath fleabane Perennial herb  
Erigeron cervinus Siskiyou daisy Perennial herb (rhizomatous)  
Erigeron compactus var. compactus Cushion daisy Perennial herb  
Erigeron compositus Cut leaved daisy Perennial herb 3
Erigeron decumbens var. robustior Robust daisy Perennial herb  
Erigeron disparipilus White cushion fleabane Perennial herb  
Erigeron eatonii Eaton's daisy Perennial herb  
Erigeron eatonii var. plantagineus Eaton's daisy Perennial herb  
Erigeron eatonii var. sonnei Sonne's daisy Perennial herb  
Erigeron filifolius var. filifolius Thread leaved fleabane Perennial herb  
Erigeron foliosus Leafy daisy Perennial herb  
Erigeron foliosus var. confinis Leafy fleabane Perennial herb  
Erigeron foliosus var. hartwegii Hartweg's fleabane Perennial herb  
Erigeron glacialis Wandering fleabane Perennial herb 3
Erigeron glacialis var. glacialis Wandering fleabane Perennial herb  
Erigeron greenei Greene's narrow-leaved daisy Perennial herb  
Erigeron inornatus Rayless fleabane Perennial herb  
Erigeron inornatus var. inornatus Fleabane Perennial herb  
Erigeron klamathensis Klamath fleabane Perennial herb  
Erigeron lassenianus Mt. lassen fleabane Perennial herb  
Erigeron lassenianus var. lassenianus Mt. lassen daisy Perennial herb  
Erigeron lobatus Lobed fleabane Perennial herb 3
Erigeron maniopotamicus Mad river fleabane daisy Perennial herb  
Erigeron nevadincola Nevada daisy Perennial herb  
Erigeron peregrinus Wandering fleabane Perennial herb 3
Erigeron peregrinus var. callianthemus Wandering fleabane Perennial herb  
Erigeron peregrinus var. hirsutus Wandering fleabane Perennial herb  
Erigeron petrophilus Cliff fleabane Perennial herb  
Erigeron petrophilus var. petrophilus Cliff fleabane Perennial herb  
Erigeron petrophilus var. viscidulus Klamath daisy Perennial herb (rhizomatous)  
Erigeron philadelphicus Philadelphia fleabane Perennial herb  
Erigeron philadelphicus var. philadelphicus Philadelphia fleabane Perennial herb  
Erigeron pumilus ssp. intermedius Shaggy fleabane Perennial herb  
Erigeron pumilus var. gracilior Shaggy fleabane Perennial herb  
Erigeron reductus Fleabane Perennial herb  
Erigeron reductus var. angustatus Pine erigeron Perennial herb  
Erigeron reductus var. reductus California rayless daisy Perennial herb  
Erigeron robustior Willamette fleabane Perennial herb  
Erigeron tener Slender fleabane Perennial herb  
Eriodictyon lobbii Matted yerba santa Perennial herb 1
Eriogonum alpinum Trinity buckwheat Perennial herb (rhizomatous)  
Eriogonum beatleyae Beatley's buckwheat Perennial herb  
Eriogonum compositum Arrowleaf buckwheat Perennial herb 3
Eriogonum compositum var. compositum Arrow leaf buckwheat Perennial herb  
Eriogonum crosbyae Crosby's buckwheat Perennial herb  
Eriogonum diclinum Jaynes canyon buckwheat Perennial herb  
Eriogonum douglasii var. douglasii Douglas' buckwheat Perennial herb  
Eriogonum elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. villosum Long hairy tall buckwheat Perennial herb  
Eriogonum ericifolium var. thornei Thorne's buckwheat Perennial herb  
Eriogonum incanum Frosted buckwheat Perennial herb 1
Eriogonum inflatum var. deflatum Deflated desert trumpet Perennial herb  
Eriogonum inflatum var. inflatum Desert trumpet Perennial herb  
Eriogonum libertini Dubakella mtn. buckwheat Perennial herb  
Eriogonum lobbii Lobb's buckwheat Perennial herb  
Eriogonum lobbii var. lobbii Lobb's buckwheat Perennial herb  
Eriogonum oblongifolium Coast buckwheat Perennial herb 23
Eriogonum ochrocephalum var. alexanderae Alexander's buckwheat Perennial herb  
Eriogonum panamintense var. mensicola Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum panamintense var. panamintense Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum siskiyouense Siskiyou buckwheat Perennial herb 2
Eriogonum sphaerocephalum Round headed buckwheat Perennial herb  
Eriogonum strictum Blue mountain buckwheat Perennial herb 1
Eriogonum strictum var. anserinum Blue mountain buckwheat Perennial herb  
Eriogonum strictum var. greenei Greene's buckwheat Perennial herb  
Eriogonum strictum var. proliferum Blue mountain buckwheat Perennial herb 1
Eriogonum ternatum Ternate buckwheat Perennial herb  
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. furcosum Desert sulfur buckwheat Perennial herb  
Eriogonum umbellatum var. goodmanii Serpentine sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. humistratum Mt. Eddy buckwheat Perennial herb  
Eriogonum umbellatum var. modocense Sulphur flower buckwheat Perennial herb  
Eriogonum umbellatum var. nelsoniorum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. nevadense Sierra sulfur flower Perennial herb 1
Eriogonum umbellatum var. polyanthum Many flowered sulfur flower Perennial herb 5
Eriogonum umbellatum var. smallianum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. speciosum Showy sulfur buckwheat Perennial herb  
Eriogonum ursinum Bear buckwheat Perennial herb 4
Eriogonum ursinum var. erubescens Blushing wild buckwheat Perennial herb  
Erioneuron pulchellum Fluff grass Perennial grass  
Eriophorum criniger Cotton grass Perennial grass  
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. arachnoideum Wooly sunflower Perennial herb 3
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  
Eryngium articulatum Coyote thistle Perennial herb 1
Eryngium pendletonensis Pendleton's eryngo Perennial herb  
Erysimum argillosum Western wallflower Perennial herb  
Erysimum capitatum Wallflower Perennial herb 11
Erysimum capitatum var. bealianum Western wallflower Perennial herb 1
Erysimum capitatum var. capitatum Sanddune wallflower Perennial herb 1
Erysimum capitatum var. perenne Sanddune wallflower Perennial herb  
Erysimum franciscanum var. crassifolium San francisco wallflower Perennial herb 10
Erysimum insulare ssp. insulare Island wallflower Perennial herb  
Erysimum insulare ssp. suffrutescens Suffrutescent wallflower Perennial herb 4
Erysimum insulare var. grandifolium Island wallflower Perennial herb  
Erysimum menziesii ssp. concinnum Headland wallflower Perennial herb 10
Erysimum menziesii ssp. eurekense Humboldt bay wallflower Perennial herb 6
Erysimum menziesii ssp. menziesii Menzies's wallflower Perennial herb  
Erysimum menziesii ssp. yadonii Yadon's wallflower Perennial herb 6
Erysimum perenne Sanddune wallflower Perennial herb  
Erythranthe cardinalis Cardinal monkey flower Perennial herb 42
Erythranthe inodora Musk monkeyflower Perennial herb 1
Erythranthe lewisii Lewis' monkey flower Perennial herb 11
Erythranthe linearifolia Primrose monkeyflower Perennial herb 2
Erythranthe primuloides Primrose monkeyflower Perennial herb  
Erythranthe ptilota Muskflower Perennial herb  
Erythranthe tilingii Larger mountain monkeyflower Perennial herb 3
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 citrinum var. roderickii 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 multiscapoideum Sierra fawn lily Perennial herb (bulb) 4
Erythronium oregonum Oregon fawn lily Perennial herb (bulb) 8
Erythronium pusaterii Hocket lakes fawn lily Perennial herb (bulb)  
Erythronium revolutum Mahogany fawn lily Perennial herb (bulb) 5
Eschscholzia californica ssp. californica California poppy Perennial herb 3
Eucephalus glabratus Smooth aster Perennial herb  
Eucephalus ledophyllus Cascade aster Perennial herb  
Eucephalus ledophyllus var. covillei Cascade aster Perennial herb  
Eucephalus tomentellus Rayless aster Perennial herb  
Euphorbia incisa Mojave spurge Perennial herb  
Euphorbia palmeri Woodland spurge Perennial herb  
Eurybia radulina Roughleaf aster Perennial herb 2
Euthamia occidentalis Western goldenrod Perennial herb 14
Fagonia longipes Long leaf fagonia Perennial herb  
Festuca brachyphylla ssp. coloradensis Colorado fescue Perennial grass  
Festuca californica California fescue Perennial grass 48
Festuca californica ssp. californica Perennial grass 6
Festuca californica ssp. hitchcockiana Perennial grass  
Festuca californica ssp. parishii Perennial grass  
Festuca californica var. parishii California fescue Perennial grass  
Festuca elmeri Coast fescue Perennial grass  
Festuca idahoensis Blue fescue Perennial grass 54
Festuca occidentalis Western fescue Perennial grass 8
Festuca roemeri var. klamathensis Idaho fescue Perennial grass 49
Festuca roemeri var. roemeri Perennial grass 49
Festuca rubra Red fescue Perennial grass 39
Festuca saximontana var. purpusiana Rocky mountain fescue Perennial grass 1
Festuca subulata Bearded fescue Perennial grass  
Festuca subuliflora Coast range fescue Perennial grass  
Fragaria chiloensis ssp. lucida Beach strawberry Perennial herb 37
Fragaria crinita Beach strawberry Perennial herb 33
Fragaria vesca Wild strawberry Perennial herb 43
Fragaria vesca ssp. bracteata Woodland strawberry Perennial herb 33
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) 5
Fritillaria affinis var. affinis Checker lily Perennial herb (bulb) 5
Fritillaria affinis var. tristulis Coast checker lily Perennial herb (bulb) 5
Fritillaria atropurpurea Spotted mountain bells Perennial herb 2
Fritillaria biflora Chocolate lily Perennial herb 3
Fritillaria glauca Siskiyou missionbells Perennial herb 1
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 boreale ssp. septentrionale Northern bedstraw Perennial herb  
Galium californicum California bedstraw Perennial herb  
Galium californicum ssp. californicum California bedstraw Perennial herb  
Galium glabrescens Castle lake bedstraw Perennial herb  
Galium glabrescens ssp. glabrescens Castle lake 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 hilendiae Hilend's bedstraw Perennial herb  
Galium hilendiae ssp. kingstonense Kingston mtns. bedstraw Perennial herb  
Galium mexicanum Mexican bedstraw Perennial herb  
Galium mexicanum ssp. asperulum Mexican bedstraw Perennial herb  
Galium mexicanum var. asperulum Mexican bedstraw Perennial herb  
Galium muricatum Humboldt bedstraw Perennial herb  
Galium serpenticum Northern bedstraw Perennial herb  
Galium serpenticum ssp. scotticum Scott mtn. bedstraw Perennial herb  
Galium trifidum Three petaled bedstraw Perennial herb  
Galium trifidum ssp. subbiflorum Threepetal bedstraw Perennial herb  
Galium trifidum var. pacificum Bedstraw Perennial herb  
Galium trifidum var. pusillum Small bedstraw Perennial herb  
Galvezia speciosa Island snapdragon Perennial herb, Shrub 31
Gamochaeta ustulata Featherweed Perennial herb  
Gentiana calycosa Rainier pleated gentian Perennial herb  
Gentiana newberryi Alpine gentian Perennial herb 2
Gentiana newberryi var. newberryi Alpine gentian Perennial herb  
Gentiana plurisetosa Klamath gentian Perennial herb 1
Gentiana setigera Mendocino gentian Perennial herb 1
Geranium concinnum California mountain geranium Perennial herb  
Geum macrophyllum Large leaved avens Perennial herb 8
Geum macrophyllum var. perincisum Largeleaf avens Perennial herb  
Gilia ripleyi Ripley's gilia Perennial herb  
Glaux maritima Sea milk wort Perennial herb  
Glyceria davyi Davy mannagrass Perennial grass  
Glyceria elata Tall mannagrass Perennial grass 8
Glyceria occidentalis Waxy mannagrass Perennial grass (aquatic) 2
Glyceria striata Fowl mannagrass Perennial grass 8
Gnaphalium canescens Everlasting cudweed Perennial herb 3
Gnaphalium canescens ssp. beneolens Cudweed Perennial herb 1
Gnaphalium canescens ssp. canescens Everlasting cudweed Perennial herb  
Gnaphalium canescens ssp. microcephalum White everlasting Perennial herb 1
Gnaphalium canescens ssp. thermale Small headed cudweed Perennial herb  
Gnaphalium leucocephalum White headed cudweed Perennial herb  
Goodyera oblongifolia Rattlesnake plantain Perennial herb 4
Grindelia camporum Gumweed Perennial herb 15
Grindelia camporum var. bracteosa Bract gumweed Perennial herb 14
Grindelia camporum var. camporum Great valley gumweed Perennial herb 15
Grindelia fraxino-pratensis Ash meadows gumplant Perennial herb  
Grindelia hirsutula Gumweed Perennial herb 12
Grindelia hirsutula var. davyi Davy's gumweed Perennial herb 14
Grindelia hirsutula var. hallii San diego gumplant Perennial herb  
Grindelia hirsutula var. hirsutula Hairy gumweed Perennial herb 12
Hackelia amethystina Amethyst stickseed Perennial herb  
Hackelia bella Greater showy stickseed Perennial herb  
Hackelia micrantha Jessica's stickseed Perennial herb  
Hackelia mundula Pink stickseed Perennial herb  
Hackelia setosa Bristly stickseed Perennial herb  
Halimolobos virgata Virgate halimolobos 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  
Hazardia whitneyi var. whitneyi Whitney's goldenbush Perennial herb  
Hedeoma nana var. californica California mock pennyroyal Perennial herb  
Hedeoma nanum var. californicum Mock pennyroyal Perennial herb  
Helenium autumnale var. grandiflorum Large flowered autumn sneezeweed Perennial herb 8
Helenium autumnale var. montanum Montane autumn sneezeweed Perennial herb 8
Helenium bigelovii Bigelow's sneezeweed Perennial herb 8
Helenium puberulum Sneezeweed Perennial herb 9
Helianthella californica California helianthella Perennial herb 3
Helianthella californica var. californica California helianthella Perennial herb  
Helianthella californica var. nevadensis California helianthella Perennial herb  
Helianthella californica var. shastensis Shasta helianthella Perennial herb  
Heliotropium curassavicum Chinese parsley Perennial herb 7
Heliotropium procumbens var. procumbens Fourspike heliotrope Perennial herb  
Hemieva ranunculifolia Buttercup-leaf suksdorfia Perennial herb  
Heracleum lanatum Cow parsnip Perennial herb 20
Heracleum maximum Common cowparsnip Perennial herb 20
Hesperochiron californicus California hesperochiron Perennial herb  
Hesperochiron pumilus Dwarf hesperochiron Perennial herb  
Hesperostipa comata Needle & thread grass Perennial grass 10
Hesperostipa comata ssp. comata Needle & thread grass Perennial grass 1
Hesperostipa comata ssp. intermedia Intermediate needle & thread grass Perennial grass  
Heterotheca 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 var. bolanderoides False bolander's goldenaster Perennial herb  
Heterotheca villosa var. hispida Hairy goldenaster Perennial herb  
Heterotheca villosa var. shevockii Shevock's hairy golden aster Perennial herb  
Heterotheca villosa var. villosa Hairy goldenaster Perennial herb 3
Heuchera alpestris Parish's alumroot Perennial herb 2
Heuchera cespitosa Tufted alumroot Perennial herb 2
Heuchera cylindrica var. alpina Alpine alumroot Perennial herb 8
Heuchera duranii Duran's alumroot Perennial herb (rhizomatous)  
Heuchera elegans Urn flowered alumroot Perennial herb (rhizomatous) 4
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. macropetala Crevice alumroot Perennial herb 31
Heuchera micrantha var. micrantha Crevice alumroot Perennial herb 32
Heuchera pilosissima var. pilosissima Seaside alumroot Perennial herb 8
Heuchera pringlei Merriam's alumroot Perennial herb 1
Heuchera rubescens Pink alumroot Perennial herb 6
Heuchera rubescens var. alpicola Allum root Perennial herb 6
Heuchera rubescens var. glandulosa Pink alumroot Perennial herb 6
Heuchera rubescens var. rydbergiana Pink alumroot Perennial herb 6
Hieracium albiflorum White flowered hawkweed Perennial herb 2
Hieracium bolanderi Bolander's hawkweed Perennial herb  
Hieracium gracile Alpine 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  
Hieracium triste Woolly hawkweed Perennial herb  
Hierochloe occidentalis Western sweetgrass Perennial grass 6
Hierochloe odorata Vanilla grass Perennial grass (rhizomatous) 8
Holozonia filipes Holozonia Perennial herb  
Hordeum brachyantherum Meadow barley Perennial grass 25
Hordeum brachyantherum ssp. brachyantherum Meadow barley Perennial grass 4
Hordeum jubatum Fox tail barley Perennial grass 7
Horkelia californica California horkelia Perennial herb 8
Horkelia californica ssp. californica California horkelia Perennial herb  
Horkelia californica ssp. dissita California horkelia Perennial herb  
Horkelia californica ssp. frondosa California horkelia Perennial herb  
Horkelia californica var. elata California horkelia Perennial herb  
Horkelia congesta ssp. nemorosa Josephine horkelia Perennial herb  
Horkelia cuneata ssp. cuneata Coast horkelia Perennial herb 1
Horkelia cuneata ssp. puberula Coast horkelia Perennial herb  
Horkelia cuneata ssp. sericea Wedge leaved horkelia Perennial herb 1
Horkelia daucifolia Carrot leafed horkelia Perennial herb  
Horkelia daucifolia var. daucifolia Carrot leafed horkelia Perennial herb  
Horkelia fusca Tawny horkelia Perennial herb  
Horkelia fusca ssp. capitata Dark horkelia Perennial herb  
Horkelia fusca ssp. parviflora Dusky horkelia Perennial herb  
Horkelia fusca ssp. tenella Pinewoods horkelia Perennial herb  
Horkelia fusca var. parviflora Tawny 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 ssp. tridentata Three toothed horkelia Perennial herb  
Horkelia tridentata var. flavescens Three toothed horkelia Perennial herb  
Horkelia tridentata var. tridentata Three toothed horkelia Perennial herb  
Hosackia crassifolia Broad leaved lotus Perennial herb 5
Hosackia crassifolia var. crassifolia Broad leaved lotus Perennial herb 2
Hosackia crassifolius Lotus Perennial herb 1
Hosackia crassifolius var. otayensis Otay mountain lotus Perennial herb 1
Hosackia oblongifolia Narrow leaved lotus Perennial herb 2
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus Perennial herb 1
Hosackia pinnata Pinnate lotus Perennial herb  
Hosackia stipularis Stipulate lotus Perennial herb  
Hosackia stipularis var. ottleyi Ottley's stipulate lotus Perennial herb  
Hosackia yollabolliensis Yolla bolly mtns. bird's-foot trefoil Perennial herb 1
Howellanthus dalesianus Scott mountain phacelia Perennial herb  
Hulsea nana Dwarf hulsea Perennial herb  
Hydrophyllum alpestre Alpine breeches Perennial herb  
Hydrophyllum capitatum var. alpinum Woolen breeches Perennial herb  
Hydrophyllum fendleri Fendler's waterleaf Perennial herb  
Hydrophyllum fendleri var. albifrons White fendler's waterleaf Perennial herb  
Hydrophyllum occidentale Western waterleaf Perennial herb 1
Hymenoxys acaulis var. arizonica Arizona hymenoxys Perennial herb 1
Hymenoxys cooperi var. canescens Gray cooper's goldflower Perennial herb  
Hymenoxys cooperi var. cooperi Cooper's rubberweed Perennial herb  
Hypericum formosum St john's wort Perennial herb  
Hypericum formosum var. scouleri Scouler's st. john's wort Perennial herb 2
Hypericum scouleri Scouler's st john's wort Perennial herb 2
Iliamna bakeri Baker's globe mallow Perennial herb 1
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  
Ipomopsis congesta ssp. palmifrons Ball headed gilia Perennial herb  
Iris bracteata Siskiyou iris Perennial herb (rhizomatous) 2
Iris douglasiana Douglas iris Perennial herb 48
Iris hartwegii Hartweg's iris Perennial herb 4
Iris innominata Del norte county iris Perennial herb (rhizomatous) 7
Iris macrosiphon Ground iris Perennial herb 9
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. purdyiformis Slender iris Perennial herb  
Iris tenuissima ssp. tenuissima Slender iris Perennial herb  
Isopyrum occidentale Western false rue anemone Perennial herb  
Isopyrum stipitatum Siskiyou rue anemone Perennial herb  
Iva axillaris ssp. robustior Poverty weed Perennial herb  
Ivesia gordonii Alpine ivesia Perennial herb  
Ivesia gordonii var. alpicola Alpine ivesia Perennial herb  
Ivesia gordonii var. ursinorum Alpine ivesia Perennial herb  
Ivesia lycopodioides ssp. lycopodioides Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. megalopetala Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. scandularis Clubmoss ivesia Perennial herb  
Ivesia pickeringii Pickering's ivesia Perennial herb  
Juncus acuminatus Sharp fruited rush Perennial grass 3
Juncus articulatus Jointed rush Perennial grass 1
Juncus articulatus ssp. articulatus Jointed rush Perennial grass  
Juncus balticus Wire rush Perennial grass 20
Juncus balticus ssp. ater Baltic rush Perennial grass 1
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. covillei Coville's rush Perennial grass  
Juncus covillei var. obtusatus Coville's rush Perennial grass  
Juncus drummondii Drummond's rush Perennial grass  
Juncus dudleyi Dudley's rush Perennial grass 1
Juncus effusus Common bog rush Perennial grass 43
Juncus effusus ssp. pacificus Pacific rush Perennial grass 7
Juncus effusus var. brunneus Common bog rush Perennial grass 3
Juncus effusus var. exiguus Common bog rush Perennial grass  
Juncus effusus var. gracilis Slender common rush Perennial grass  
Juncus effusus var. pacificus Pacific bog rush Perennial grass 7
Juncus ensifolius Sword leaved rush Perennial grass 7
Juncus exiguus Klamath or weak rush Perennial grass  
Juncus falcatus var. falcatus Sickle leafed rush Perennial grass  
Juncus howellii Howell's rush Perennial grass  
Juncus laccatus Shiny rush Perennial grass  
Juncus lesueurii Dune rush Perennial grass 2
Juncus longistylis Long styled rush Perennial grass 1
Juncus marginatus var. marginatus Red anthered rush Perennial grass (rhizomatous)  
Juncus mertensianus Merten's rush Perennial grass 1
Juncus mexicanus Mexican rush Perennial grass 11
Juncus nevadensis Sierra rush Perennial grass 1
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 parryi Parry's rush Perennial grass  
Juncus patens Rush Perennial grass 47
Juncus regelii Regel's rush Perennial grass (rhizomatous)  
Juncus tenuis Slender rush Perennial grass 9
Juncus xiphioides Iris leaved rush Perennial grass 15
Kelloggia galioides Kelloggia Perennial herb  
Kobresia bellardii Seep kobresia Perennial grass (rhizomatous)  
Koeleria macrantha June grass Perennial grass 29
Kopsiopsis hookeri Small groundcone Perennial herb  
Kopsiopsis strobilacea California ground-cone Perennial herb (parasitic)  
Kumlienia hystricula Waterfall false buttercup Perennial herb  
Kyhosia bolanderi Bolander's madia Perennial herb  
Lactuca tatarica var. pulchella Blue lettuce Perennial herb  
Lathyrus biflorus Two flowered pea Perennial herb  
Lathyrus brownii Brown's brush pea Perennial herb  
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. aridus Dryland nevada pea Perennial herb  
Lathyrus lanszwertii var. tracyi Tracy's nevada pea Perennial herb  
Lathyrus nevadensis Sierra pea Perennial herb  
Lathyrus nevadensis ssp. lanceolatus Sierra pea Perennial herb  
Lathyrus nevadensis ssp. nevadensis Sierra pea Perennial herb  
Lathyrus nevadensis var. nevadensis Sierra nevada pea Perennial herb  
Lathyrus palustris Marsh pea Perennial herb  
Lathyrus polyphyllus Oregon pea Perennial herb  
Lathyrus sulphureus Sulpher pea Perennial herb  
Lathyrus sulphureus var. argillaceus Dubious pea Perennial herb  
Lathyrus sulphureus var. sulphureus Brewer's 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 minuscula Least duckweed Perennial herb  
Lemna minuta Least duckweed Perennial herb  
Lemna trisulca Star duckweed Perennial herb  
Lepidium fremontii var. fremontii Desert pepper grass Perennial herb 4
Lepidium fremontii var. stipitatum Desert pepper grass Perennial herb 4
Lepidium montanum var. canescens Mountain pepper grass Perennial herb 1
Lepidium montanum var. cinereum Mountain pepper grass Perennial herb 1
Lepidium montanum var. montanum Mountain pepper grass Perennial herb 1
Lepidium ramosissimum var. bourgeauanum Branched pepper grass Perennial herb  
Leptodactylon jaegeri Jaeger's prickly phlox Perennial herb  
Leptosiphon nuttallii Nuttall's linanthus Perennial herb 2
Leptosiphon nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb 2
Lesquerella kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. bernardina San bernardino mtns. bladderpod Perennial herb  
Lesquerella kingii ssp. kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. latifolia Limestone bladderpod Perennial herb  
Lesquerella occidentalis ssp. occidentalis Western bladder pod Perennial herb  
Lessingia filaginifolia Common california aster Perennial herb 23
Lessingia filaginifolia var. californica Beach aster Perennial herb 9
Lessingia filaginifolia var. filaginifolia Common california aster Perennial herb 8
Lewisia columbiana Columbia lewisia Perennial herb 6
Lewisia cotyledon Cliff maids Perennial herb 19
Lewisia cotyledon var. cotyledon Cliff maids Perennial herb 2
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 rediviva Bitter root Perennial herb 4
Lewisia triphylla Three leaved lewisia Perennial herb  
Leymus Xmultiflorus Many flowered wild rye Perennial grass  
Leymus Xvancouverensis Vancouver wild rye Perennial grass  
Leymus cinereus Giant wild rye Perennial grass 8
Leymus condensatus Giant rye grass Perennial grass 34
Leymus mollis American dunegrass Perennial grass 9
Leymus mollis ssp. mollis American dune grass Perennial grass  
Leymus pacificus Gould's rye grass Perennial grass  
Leymus salinus ssp. mojavensis Mojave wild rye Perennial grass  
Leymus triticoides Alkali rye Perennial grass 32
Ligusticum apiifolium Celery leaved lovage Perennial herb 2
Ligusticum californicum California lovage Perennial herb  
Ligusticum grayi Gray's lovage Perennial herb  
Lilium kelleyanum Kelley's lily Perennial herb  
Lilium pardalinum California tiger lily Perennial herb 24
Lilium pardalinum ssp. pardalinum Leopard lily Perennial herb 2
Lilium pardalinum ssp. shastense Shasta lily Perennial herb 1
Lilium pardalinum ssp. vollmeri Vollmer's lily Perennial herb (bulb) 2
Lilium parvum Sierra tiger lily Perennial herb 4
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
Limosella subulata Delta mudwort Perennial herb  
Linanthus floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. glaber Smooth many flowered linanthus Perennial herb  
Linanthus floribundus ssp. hallii Santa rosa mtns. linanthus Perennial herb  
Linanthus nuttallii Nuttall's linanthus Perennial herb 2
Linanthus nuttallii ssp. howellii Mt. tedoc linanthus Perennial herb  
Linanthus nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb  
Linanthus nuttallii ssp. pubescens Nuttall's hairy linanthus Perennial herb  
Linanthus pachyphyllus Sierra linanthus Perennial herb  
Linnaea borealis 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 35
Linum lewisii var. alpicola Alpine lewis' flax Perennial herb 32
Linum lewisii var. lewisii Lewis' flax Perennial herb 5
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 2
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. trifoliatum Prairie woodland star Perennial herb  
Lithospermum californicum California gromwell Perennial herb  
Lomatium californicum Celery weed Perennial herb 5
Lomatium caruifolium Caraway leaved lomatium Perennial herb  
Lomatium caruifolium var. denticulatum Caraway leaved lomatium Perennial herb  
Lomatium ciliolatum Yolla bolly lomatium Perennial herb  
Lomatium ciliolatum var. ciliolatum Yolla bolly biscuitroot Perennial herb  
Lomatium dasycarpum Lace parsnip Perennial herb 3
Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium Perennial herb  
Lomatium dissectum Fern leaved lomatium Perennial herb 3
Lomatium dissectum var. dissectum Fern leaved lomatium Perennial herb 2
Lomatium dissectum var. multifidum Fern leaved lomatium Perennial herb 1
Lomatium donnellii Donnell's biscuitroot Perennial herb  
Lomatium engelmannii Engelmann's lomatium Perennial herb  
Lomatium foeniculaceum ssp. macdougallii Desert biscuitroot Perennial herb  
Lomatium macrocarpum Large fruited lomatium Perennial herb 2
Lomatium marginatum Hartweg's lomatium Perennial herb  
Lomatium nevadense Nevada lomatium Perennial herb  
Lomatium nevadense var. nevadense Nevada lomatium Perennial herb  
Lomatium nevadense var. parishii Parish's lomatium Perennial herb  
Lomatium nudicaule Pestle lomatium Perennial herb 3
Lomatium 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 3
Lomatium vaginatum Sheathed lomatium Perennial herb  
Lotus aboriginus Rose flowered lotus Perennial herb 1
Lotus argophyllus Silver birds foot trefoil Perennial herb 1
Lotus argophyllus var. adsurgens San clemente island bird's foot trefoil Perennial herb  
Lotus argophyllus var. argenteus Channel islands silver lotus Perennial herb 1
Lotus argophyllus var. argophyllus Southern california silver lotus Perennial herb  
Lotus argophyllus var. fremontii Fremont's silver lotus Perennial herb  
Lotus argophyllus var. niveus Santa cruz island silverlotus Perennial herb  
Lotus argyraeus Canyon birdsfoot trefoil Perennial herb  
Lotus argyraeus var. argyraeus Canyon lotus Perennial herb  
Lotus argyraeus var. multicaulis Scrub lotus Perennial herb  
Lotus argyraeus var. notitius Providence mtns. lotus Perennial herb  
Lotus benthamii Bentham's deerweed Perennial herb  
Lotus crassifolius Broad leaved lotus Perennial herb 7
Lotus crassifolius var. crassifolius Broad leaved lotus Perennial herb 2
Lotus crassifolius var. otayensis Otay mtn. lotus Perennial herb 9
Lotus formosissimus Coast lotus Perennial herb 7
Lotus grandiflorus Large leaved lotus Perennial herb 3
Lotus grandiflorus var. grandiflorus Chaparral lotus Perennial herb 1
Lotus grandiflorus var. macranthus Mountain chaparral lotus Perennial herb  
Lotus haydonii Pygmy lotus Perennial herb  
Lotus heermannii Heermann's lotus Perennial herb 3
Lotus heermannii var. heermannii Heermann's lotus Perennial herb 1
Lotus heermannii var. orbicularis Round leaved heermann's lotus Perennial herb  
Lotus incanus Woolly lotus Perennial herb  
Lotus junceus Rush lotus Perennial herb 2
Lotus junceus var. biolettii Bioletti's rush lotus Perennial herb  
Lotus junceus var. junceus Rush lotus Perennial herb  
Lotus nevadensis Sierra lotus Perennial herb  
Lotus nevadensis var. davidsonii Davidson's sierra nevada lotus Perennial herb  
Lotus nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Lotus oblongifolius Narrow leaved lotus Perennial herb 1
Lotus oblongifolius var. cupreus Copper flowered bird's foot trefoil Perennial herb  
Lotus oblongifolius var. oblongifolius Narrow leaved lotus Perennial herb 1
Lotus pinnatus Pinnate lotus Perennial herb  
Lotus procumbens Silky california broom Perennial herb, Shrub  
Lotus procumbens var. jepsonii Jepson's california broom Perennial herb, Shrub  
Lotus procumbens var. procumbens Silky california broom Perennial herb, Shrub  
Lotus rigidus Desert lotus Perennial herb  
Lotus scoparius Deerweed Perennial herb 21
Lotus scoparius var. brevialatus Short winged deerweed Perennial herb  
Lotus scoparius var. scoparius Deerweed Perennial herb  
Lotus stipularis Stipulate lotus Perennial herb  
Lotus stipularis var. ottleyi Ottley's stipulate lotus Perennial herb  
Lotus stipularis var. stipularis Stipulate lotus Perennial herb  
Lotus yollabolliensis Yolla bolly mtns. bird's foot trefoil Perennial herb 1
Luina hypoleuca Little leaf luina Perennial herb  
Lupinus adsurgens Drew's silky lupine Perennial herb  
Lupinus adsurgens var. lilacinus Drew's silky lupine Perennial herb  
Lupinus albicaulis White stemmed lupine Perennial herb 8
Lupinus albicaulis var. albicaulis Sicklekeel lupine Perennial herb  
Lupinus albicaulis var. shastensis Shasta lupine Perennial herb  
Lupinus andersonii Anderson's lupine Perennial herb  
Lupinus antoninus Anthony peak lupine Perennial herb  
Lupinus breweri Brewer's lupine Perennial herb 2
Lupinus breweri var. breweri Brewer's lupine Perennial herb  
Lupinus breweri var. grandiflorus Showy brewer's lupine Perennial herb  
Lupinus constancei Lassics lupine Perennial herb  
Lupinus croceus Mt. eddy lupine Perennial herb 1
Lupinus croceus var. croceus Saffron flowered lupine Perennial herb  
Lupinus croceus var. pilosellus Saffron flowered lupine Perennial herb  
Lupinus elmeri Elmer's lupine Perennial herb  
Lupinus lapidicola Mt. Eddy lupine Perennial herb  
Lupinus latifolius Broad leaf lupine Perennial herb 9
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 leucophyllus Velvet lupine Perennial herb  
Lupinus obtusilobus Satin lupine Perennial herb  
Lupinus onustus Northern lupine Perennial herb 1
Lupinus polyphyllus Bog lupine Perennial herb 25
Lupinus polyphyllus var. burkei Large leaved lupine Perennial herb 4
Lupinus polyphyllus var. pallidipes Pale meadow lupine Perennial herb  
Lupinus rivularis Riverbank lupine Perennial herb 8
Lupinus tidestromii var. layneae Layne's lupine Perennial herb (rhizomatous)  
Lupinus tidestromii var. tidestromii Tidestrom'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 divaricata Forked wood rush Perennial grass  
Luzula multiflora Common woodrush Perennial grass 1
Luzula parviflora Small flowered wood rush Perennial grass 2
Luzula subsessilis Pacific woodrush Perennial grass 3
Lycurus setosus Bristly wolfstail Perennial grass 2
Lyrocarpa coulteri var. palmeri Coulter's lyrepod Perennial herb  
Lysimachia latifolia Pacific starflower Perennial herb 2
Machaeranthera asteroides Hoary aster Perennial herb  
Machaeranthera asteroides var. asteroides Hoary aster Perennial herb  
Machaeranthera asteroides var. lagunensis Laguna mtns. aster Perennial herb  
Machaeranthera canescens Hoary aster Perennial herb 1
Machaeranthera canescens var. canescens Hoary aster Perennial herb  
Machaeranthera canescens var. incana Hoary aster Perennial herb  
Machaeranthera canescens var. leucanthemifolia Hoary aster Perennial herb  
Machaeranthera canescens var. shastensis Shasta aster Perennial herb  
Machaeranthera canescens var. ziegleri Ziegler's aster Perennial herb  
Machaeranthera juncea Rush like bristleweed Perennial herb  
Machaeranthera pinnatifida var. gooddingii Goodding's aster Perennial herb  
Madia bolanderi Bolander's tarweed Perennial herb  
Madia madioides Forest madia Perennial herb 2
Maianthemum racemosum Feathery false lily of the valley Perennial herb 18
Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley Perennial herb 2
Maianthemum stellatum Starry false lily of the valley Perennial herb 16
Malaxis monophyllos ssp. brachypoda Adder's mouth Perennial herb (bulb)  
Marah fabacea California man-root Perennial herb, Vine 3
Marah fabaceus Manroot Perennial herb, Vine 3
Marah fabaceus var. agrestis Wild cucumber Perennial herb, Vine 2
Marah fabaceus var. fabaceus California manroot Perennial herb, Vine 2
Marah horridus Sierran wild cucumber Perennial herb, Vine  
Marah macrocarpus Southern wild cucumber Perennial herb, Vine 5
Marah macrocarpus var. macrocarpus Southern wild cucumber Perennial herb, Vine 1
Marah macrocarpus var. major Southern wild cucumber Perennial herb, Vine 1
Marah oregana Coast man-root Perennial herb, Vine 2
Marah oreganus Manroot Perennial herb, Vine 2
Maurandya antirrhiniflora ssp. antirrhiniflora Violet twining snapdragon Perennial herb 2
Maurandya petrophila Rock haurandya Perennial herb  
Melica aristata Awned melic Perennial grass 1
Melica bulbosa Oniongrass Perennial grass 1
Melica bulbosa var. inflata Oniongrass Perennial grass 1
Melica californica California melic Perennial grass 25
Melica californica var. californica California melicgrass Perennial grass 1
Melica frutescens Tall melica Perennial grass 1
Melica fugax Small onion grass Perennial grass  
Melica geyeri Geyer's onion grass Perennial grass  
Melica geyeri var. aristulata Geyer's onion grass Perennial grass  
Melica geyeri var. geyeri Geyer's oniongrass Perennial grass  
Melica harfordii Harford's melic Perennial grass 2
Melica imperfecta Coast range melic Perennial grass 22
Melica spectabilis Purple onion grass Perennial grass (rhizomatous)  
Melica stricta Nodding melica Perennial grass  
Melica stricta var. albicaulis Nodding melica Perennial grass  
Melica stricta var. stricta Rock melicgrass Perennial grass  
Melica subulata Alaska melic Perennial grass 1
Menodora scoparia Broom tvinberry Perennial herb 2
Mentha canadensis Wild mint Perennial herb 5
Mentzelia laevicaulis Giant blazingstar Perennial herb 7
Mentzelia multiflora ssp. longiloba Many flowered mentzelia Perennial herb  
Mentzelia multiflora var. longiloba Adonis blazingstar Perennial herb  
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 fragosa Perennial herb  
Micranthes integrifolia Smooth leaf saxifrage Perennial herb  
Micranthes marshallii Marshall's saxifrage Perennial herb  
Micranthes nidifica Peak saxifrage Perennial herb  
Micranthes odontoloma Brook saxifrage Perennial herb 1
Micranthes oregana Bog saxifrage Perennial herb  
Micranthes tolmiei Tolmie's saxifrage Perennial herb  
Microseris laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. laciniata Cut leaved scorzonella Perennial herb  
Microseris laciniata ssp. leptosepala Cut leaved scorzonella Perennial herb  
Microseris laciniata var. siskiyouensis Cutleaf silverpuffs Perennial herb  
Microseris nutans Nodding microceris Perennial herb  
Mimulus cardinalis Cardinal monkey flower Perennial herb 42
Mimulus glabratus var. glabratus Roundleaf monkeyflower Perennial herb (rhizomatous)  
Mimulus lewisii Lewis' monkey flower Perennial herb 11
Mimulus moschatus Musk monkeyflower Perennial herb 1
Mimulus moschatus var. longiflorus Muskflower Perennial herb  
Mimulus moschatus var. moschatus Muskflower Perennial herb  
Mimulus moschatus var. sessilifolius Muskflower Perennial herb  
Mimulus primuloides Primrose monkeyflower Perennial herb 2
Mimulus primuloides ssp. linearifolius Primrose monkeyflower Perennial herb 2
Mimulus primuloides ssp. primuloides Primrose monkeyflower Perennial herb  
Mimulus primuloides var. linearifolius Primrose monkeyflower Perennial herb 2
Mimulus primuloides var. pilosellus Primrose monkeyflower Perennial herb  
Mimulus primuloides var. primuloides Primrose monkeyflower Perennial herb  
Mimulus tilingii Larger mountain monkeyflower Perennial herb 3
Mimulus tilingii var. tilingii Tiling's monkeyflower Perennial herb  
Minuartia cismontana Cismontane minuartia Perennial herb  
Minuartia decumbens The lassics sandwort Perennial herb  
Minuartia nuttallii Nuttall sandwort Perennial herb  
Minuartia nuttallii ssp. fragilis Brittle sandwort Perennial herb  
Minuartia nuttallii ssp. gracilis Nuttall's sandwort Perennial herb  
Minuartia nuttallii ssp. gregaria Gregarious sandwort Perennial herb  
Minuartia nuttallii var. gregaria Nuttall sandwort Perennial herb  
Minuartia rosei Peanut sandwort Perennial herb  
Minuartia stolonifera Scott mtn. sandwort Perennial herb  
Mirabilis bigelovii Bigelow's desert four o'clock Perennial herb 3
Mirabilis bigelovii var. bigelovii Pale stemmed four o clock Perennial herb 1
Mirabilis bigelovii var. retrorsa Wishbone Perennial herb  
Mirabilis californica Wishbone bush Perennial herb 12
Mirabilis comata Hairy tuft four o'clock Perennial herb  
Mirabilis laevis var. laevis Desert wishbone bush Perennial herb  
Mirabilis oblongifolia Oblong leafed four o'clock Perennial herb 1
Mirabilis pumila Little umbrella wort Perennial herb  
Mitella breweri Brewer's miterwort Perennial herb  
Mitella caulescens Stemmed miterwort Perennial herb  
Mitella diversifolia Angle leafed miterwort Perennial herb  
Mitella ovalis Coastal miterwort Perennial herb 2
Mitella pentandra Alpine bishop's cap Perennial herb 1
Mitella trifida Three parted miterwort Perennial herb  
Mitellastra caulescens Leafy-stemmed mitrewort Perennial herb  
Moehringia macrophylla Large leaved sandwort Perennial herb  
Monanthochloe littoralis Salt cedar Perennial grass 1
Monardella antonina San antonio hills monardella Perennial herb (rhizomatous) 24
Monardella australis ssp. jokersti Jokerstís monardella Perennial herb  
Monardella cinerea Gray monardella Perennial herb (rhizomatous)  
Monardella crispa Crisp monardella Perennial herb (rhizomatous) 1
Monardella frutescens San luis obispo monardella Perennial herb (rhizomatous)  
Monardella glauca Grey monardella Perennial herb 1
Monardella linoides ssp. viminea Willowy monardella Perennial herb 7
Monardella nana ssp. arida Desert monardella Perennial herb 1
Monardella nana ssp. nana Little monardella Perennial herb  
Monardella nana ssp. tenuiflora Short flowered monardella Perennial herb  
Monardella odoratissima Mountain monardella Perennial herb 20
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 rubella Grey monardella Perennial herb  
Monardella sheltonii Shelton's coyote mint Perennial herb 1
Monardella siskiyouensis Siskiyou coyote mint Perennial herb 2
Monardella villosa Coyote mint Perennial herb 25
Monardella villosa ssp. globosa Robust monardella Perennial herb (rhizomatous) 2
Monardella villosa ssp. villosa Coyote mint Perennial herb 3
Monardella villosa var. subglabra Coyote mint Perennial herb 2
Monardella viridis ssp. saxicola Rock monardella Perennial herb (rhizomatous)  
Monardella viridis ssp. viridis Green monardella Perennial herb (rhizomatous)  
Monotropa hypopitys Pinesap Perennial herb (mycoparasitic)  
Montia chamissoi Spring beauty Perennial herb  
Montia parvifolia Showy rock montia Perennial herb 4
Muhlenbergia andina Foxtail muhly Perennial grass  
Muhlenbergia dumosa Bamboo muhly Perennial grass 7
Muhlenbergia jonesii Jones' muhly Perennial grass  
Muhlenbergia mexicana Mexican muhly Perennial grass 1
Muhlenbergia montana Mountain muhly Perennial grass 3
Muhlenbergia richardsonis Richardson's muhly Perennial grass  
Muhlenbergia thurberi Thurber's muhly Perennial grass  
Muilla clevelandii San diego goldenstar Perennial herb (bulb)  
Myosotis laxa Forget me not Perennial herb  
Nama lobbii Lobb's nama Perennial herb 1
Narthecium californicum California bog asphodel Perennial herb  
Nassella cernua Nodding needlegrass Perennial grass 23
Nassella lepida Small flowered stipa Perennial grass 27
Nassella pulchra Purple needlegrass Perennial grass 41
Nasturtium officinale Watercress Perennial herb (aquatic) 3
Noccaea fendleri Pennycress Perennial herb  
Noccaea fendleri ssp. glauca Pennycress Perennial herb 1
Nothocalais alpestris Alpine prairie dandelion Perennial herb  
Nothochelone nemorosa False turtlehead Perennial herb 1
Nuphar luteum ssp. polysepalum Indian pond lily Perennial herb (aquatic)  
Nuphar polysepala Rocky mountain pond-lily Perennial herb (aquatic) 3
Oenothera caespitosa ssp. marginata Large white desert primrose Perennial herb  
Oenothera elata Evening primrose Perennial herb 16
Oenothera elata ssp. hirsutissima Evening primrose Perennial herb 3
Oenothera flava ssp. flava Dandelion evening primrose Perennial herb  
Oenothera villosa Hairy evening primrose Perennial herb  
Oenothera villosa ssp. strigosa Hairy evening primrose Perennial herb 19
Oenothera wolfii Wolf's evening primrose Perennial herb  
Opuntia californica var. californica Snake cholla Perennial herb (stem succulent) 5
Opuntia munzii Munz's cholla Perennial herb (stem succulent) 2
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. jepsonii Jepson'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  
Oryzopsis exigua Little ricegrass Perennial grass  
Osmorhiza berteroi Sweet cicely Perennial herb 3
Osmorhiza chilensis Western sweet cicely Perennial herb 3
Osmorhiza occidentalis Western sweet cicely Perennial herb 2
Osmorhiza purpurea Purple sweet cicely Perennial herb  
Oxalis albicans ssp. californica Californica wood sorrel Perennial herb  
Oxalis albicans ssp. pilosa Hairy wood sorrel Perennial herb  
Oxalis corniculata ssp. pilosa Hairy wood sorrel Perennial herb  
Oxalis oregana Redwood sorrel Perennial herb 32
Oxalis trilliifolia Three leaf woodsorrel Perennial herb  
Oxyria digyna Alpine mountain sorrel Perennial herb  
Oxytenia acerosa Copperweed Perennial herb  
Ozomelis diversifolia Angle leafed miterwort Perennial herb  
Ozomelis trifida Three parted miterwort Perennial herb  
Packera breweri Brewer's ragwort Perennial herb  
Packera cana Woolly groundsel Perennial herb  
Packera greenei Flame ragwort Perennial herb  
Packera pseudaurea Falsegold groundsel Perennial herb  
Packera pseudaurea var. pseudaurea Falsegold groundsel Perennial herb  
Paeonia brownii Peony Perennial herb 1
Panicum acuminatum Western witch grass Perennial grass  
Panicum acuminatum var. fasciculatum Pacific panic grass Perennial grass  
Parnassia californica Grass of parnassus Perennial herb  
Parnassia cirrata San bernardino grass of parnassus Perennial herb  
Parnassia cirrata var. cirrata San bernardino grass of parnassus Perennial herb  
Parnassia cirrata var. intermedia Cascade grass of parnassus Perennial herb  
Parnassia fimbriata Rocky mountain parnassia Perennial herb  
Parnassia palustris Marsh grass of parnassus Perennial herb  
Parnassia palustris var. montanensis Mountain grass of parnassus Perennial herb  
Pascopyrum smithii Western wheat grass Perennial grass 4
Pectiantia pentandra Alpine mitrewort Perennial herb 1
Pedicularis attollens Attol lousewort Perennial herb  
Pedicularis attollens ssp. attollens Little elephantshead Perennial herb  
Pedicularis bracteosa Bracted lousewort Perennial herb  
Pedicularis bracteosa var. flavida Yellowish lousewort Perennial herb  
Pedicularis contorta Curved beak lousewort Perennial herb  
Pedicularis densiflora Indian warrior Perennial herb 1
Pedicularis groenlandica var. surrecta Elephant head lousewort Perennial herb 2
Pedicularis racemosa Leafy lousewort Perennial herb  
Pedicularis racemosa ssp. racemosa Sickletop lousewort Perennial herb  
Pedicularis semibarbata Pine woods lousewort Perennial herb  
Penstemon anguineus Siskiyou beardtongue Perennial herb 1
Penstemon azureus Blue penstemon Perennial herb 11
Penstemon azureus var. angustissimus Azure penstemon Perennial herb 3
Penstemon azureus var. azureus Azure penstemon Perennial herb 2
Penstemon davidsonii Davidson's penstemon Perennial herb 8
Penstemon davidsonii var. davidsonii Davidson's beardtongue Perennial herb 2
Penstemon deustus Rock penstemon Perennial herb 2
Penstemon deustus var. deustus Scabland penstemon Perennial herb  
Penstemon deustus var. suffrutescens Hot rock beardtongue Perennial herb  
Penstemon filiformis Thread leaved beardtongue Perennial herb  
Penstemon gracilentus Slender beardtongue Perennial herb 1
Penstemon heterodoxus Sierra penstemon Perennial herb  
Penstemon heterophyllus Foothill penstemon Perennial herb 39
Penstemon heterophyllus var. heterophyllus Foothill penstemon Perennial herb 1
Penstemon heterophyllus var. purdyi Purdy's foothill penstemon Perennial herb  
Penstemon humilis ssp. humilis Low beardtongue Perennial herb  
Penstemon laetus Mountain blue penstemon Perennial herb 1
Penstemon laetus var. laetus Mountain blue penstemon Perennial herb  
Penstemon laetus var. leptosepalus Mountain blue penstemon Perennial herb  
Penstemon laetus var. sagittatus Mountain blue penstemon Perennial herb  
Penstemon newberryi Mountain pride Perennial herb 14
Penstemon newberryi var. berryi Berry's mountain pride Perennial herb  
Penstemon newberryi var. newberryi Newberry's penstemon Perennial herb 1
Penstemon parvulus Short stalk penstemon Perennial herb 1
Penstemon procerus Small flowered penstemon Perennial herb 6
Penstemon procerus var. brachyanthus Small flowered penstemon Perennial herb 1
Penstemon procerus var. formosus Western small flowered penstemon Perennial herb 2
Penstemon purpusii Snow mtn. beardtongue Perennial herb 1
Penstemon roezlii Regel's mountain penstemon Perennial herb 1
Penstemon rupicola Rock penstemon Perennial herb 4
Penstemon rydbergii Rydberg's penstemon Perennial herb 22
Penstemon rydbergii var. oreocharis Meadow beardtongue Perennial herb 1
Penstemon spectabilis var. subviscosis Showy penstemon Perennial herb  
Penstemon tracyi Tracy's beardtongue Perennial herb  
Perideridia bolanderi Bolander's yampah Perennial herb 2
Perideridia bolanderi ssp. bolanderi Bolander's yampah 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 kelloggii Yampah Perennial herb 5
Perideridia leptocarpa Narrow seeded yampah Perennial herb  
Perideridia oregana Oregon yampah Perennial herb 1
Perideridia parishii Parish's yampah Perennial herb  
Perideridia parishii ssp. latifolia Parish's yampah Perennial herb  
Perideridia parishii ssp. parishii Parish's yampah Perennial herb  
Persicaria punctata Dotted smartweed Perennial herb 4
Petasites frigidus Arctic sweet coltsfoot Perennial herb 2
Petasites frigidus var. palmatus Western coltsfoot Perennial herb 9
Phacelia cinerea Ashy phacelia Perennial herb 3
Phacelia corymbosa Serpentine phacelia Perennial herb  
Phacelia dalesiana Scott mtn. 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 imbricata Imbricate phacelia Perennial herb 4
Phacelia imbricata ssp. patula Imbricate phacelia Perennial herb  
Phacelia mutabilis Changeable phacelia Perennial herb  
Phacelia nemoralis ssp. nemoralis Woods phacelia Perennial herb  
Phacelia nemoralis ssp. oregonensis Oregon woods phacelia Perennial herb  
Phacelia oreopola ssp. oreopola San gabriel mtns. imbricate phacelia Perennial herb  
Phacelia procera Tall phacelia Perennial herb  
Phacelia ramosissima Branching phacelia Perennial herb 4
Phacelia ramosissima var. eremophila Branching phacelia Perennial herb 4
Phacelia ramosissima var. latifolia Branching phacelia Perennial herb 4
Phacelia ramosissima var. montereyensis Monterey branching phacelia Perennial herb 4
Phacelia ramosissima var. ramosissima Branching phacelia Perennial herb 4
Phacelia ramosissima var. subglabra Branching phacelia Perennial herb 4
Phacelia sericea ssp. ciliosa Silky phacelia Perennial herb  
Phalacroseris bolanderi var. bolanderi Bolander's mock dandelion Perennial herb  
Phalacroseris bolanderi var. coronata Bolander's mock dandelion Perennial herb  
Phalaris arundinacea Reed canarygrass Perennial grass 8
Phalaris arundinacea var. picta Ribbongrass Perennial grass 8
Phleum alpinum Timothy grass Perennial grass 2
Phlox adsurgens Northern phlox Perennial herb 2
Phlox diffusa Spreading phlox Perennial herb 3
Phlox douglasii ssp. rigida Stiff douglas' phlox Perennial herb 1
Phlox hoodii ssp. lanata Carpet phlox Perennial herb  
Phlox hoodii ssp. muscoides Musk phlox Perennial herb 1
Phlox longifolia ssp. brevifolia Longleaf phlox Perennial herb  
Phlox longifolia ssp. longifolia Longleaf phlox Perennial herb  
Phlox speciosa Showy phlox Perennial herb  
Phlox speciosa ssp. nitida Showy phlox Perennial herb  
Phlox speciosa ssp. occidentalis Western showy phlox Perennial herb  
Phlox viridis ssp. compacta Green phlox Perennial herb  
Phoenicaulis cheiranthoides Dagger pod Perennial herb 1
Phoradendron densum Dense mistletoe Perennial herb  
Phoradendron pauciflorum Fir mistletoe Perennial herb  
Phragmites australis ssp. americanus Perennial grass  
Phragmites australis ssp. berlandieri Perennial grass  
Phyla nodiflora var. incisa Common lippia Perennial herb 10
Phyla nodiflora var. nodiflora Common lippia Perennial herb 10
Phyla nodiflora var. rosea Garden lippia Perennial herb 10
Physaria occidentalis Western bladderpod Perennial herb  
Physaria occidentalis ssp. occidentalis Western bladder pod Perennial herb  
Pinguicula macroceras var. macroceras California butterwort Perennial herb (carnivorous)  
Pinguicula vulgaris ssp. macroceras Horned butterwort Perennial herb (carnivorous)  
Piperia candida White flowered rein orchid Perennial herb  
Piperia elongata Dense flowered rein orchid Perennial herb  
Piperia transversa Mountain piperia Perennial herb  
Piperia unalascensis Alaska piperia Perennial herb  
Piptatherum exiguum Little ricegrass Perennial grass  
Piptatherum micranthum Small flowered rice grass Perennial grass  
Pityopus californica Pityopus Perennial herb (mycoparasitic)  
Pityopus californicus Perennial herb (mycoparasitic)  
Plantago maritima var. juncoides Rush like maritime plantain Perennial herb 4
Platanthera dilatata Scentbottle Perennial herb  
Platanthera dilatata var. leucostachys Sierra bog orchid Perennial herb  
Platanthera hyperborea Green flowered bog orchid Perennial herb  
Platanthera leucostachys White flowered bog orchid Perennial herb  
Platanthera sparsiflora Bog orchid Perennial herb  
Platanthera stricta Slender bog orchid Perennial herb  
Pleuraphis jamesii Galleta Perennial grass 9
Pleuraphis rigida Galletta grass Perennial grass 7
Pleuricospora fimbriolata Fringed pinesap Perennial herb (mycoparasitic)  
Pleuropogon davyi Davy's semaphore grass Perennial grass (rhizomatous)  
Pleuropogon refractus Nodding semaphore grass Perennial grass (rhizomatous)  
Poa ampla Western blue grass Perennial grass 14
Poa cusickii Cusick's bluegrass Perennial grass  
Poa cusickii ssp. cusickii Cusick's blue grass Perennial grass  
Poa cusickii ssp. epilis Skyline bluegrass Perennial grass  
Poa juncifolia Western blue grass Perennial grass 13
Poa nevadensis Sierra blue grass Perennial grass 13
Poa pattersonii Patterson's blue grass Perennial grass  
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 13
Poa secunda ssp. secunda Sandberg's bluegrass Perennial grass 17
Poa stebbinsii Stebbins' blue grass Perennial grass  
Poa wheeleri Hooker's bluegrass Perennial grass 1
Polemonium californicum California polemonium Perennial herb 2
Polemonium chartaceum Mason's sky pilot Perennial herb  
Polemonium eddyense Mt. Eddy sky pilot Perennial herb  
Polemonium occidentale ssp. occidentale Western polemonium Perennial herb 2
Polemonium pulcherrimum Sky pilot Perennial herb 2
Polemonium pulcherrimum var. pulcherrimum Sky pilot Perennial herb  
Polyctenium fremontii var. confertum Flat pod polyctenium Perennial herb  
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 davisiae Davis knotweed Perennial herb  
Polygonum hydropiperoides Water pepper Perennial herb  
Polygonum newberryi Newberry's smartweed Perennial herb  
Polygonum phytolaccifolium Pokeweed knotweed Perennial herb  
Polygonum punctatum Punctate smartweed Perennial herb 4
Polygonum shastense Shasta knotweed Perennial herb  
Potamogeton alpinus ssp. tenuifolius Alpine pondweed Perennial herb (aquatic)  
Potamogeton epihydrus ssp. nuttallii Nuttall's pondweed Perennial herb (rhizomatous)  
Potamogeton filiformis Slender leaved pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus Leafy pondweed Perennial herb (aquatic)  
Potamogeton foliosus var. fibrillosus Fibrous pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus var. foliosus Pondweed Perennial herb (aquatic)  
Potamogeton latifolius Nevada pondweed Perennial herb (aquatic)  
Potamogeton natans Floating leaved pondweed Perennial herb (aquatic)  
Potamogeton pectinatus Fennel pondweed Perennial herb (aquatic)  
Potamogeton praelongus White stemmed pondweed Perennial herb (rhizomatous)  
Potamogeton pusillus var. pusillus Small pondweed Perennial herb (aquatic)  
Potamogeton pusillus var. tenuissimus Narrow leaved pondweed Perennial herb (aquatic)  
Potentilla breweri Brewer's cinquefoil Perennial herb 1
Potentilla cristae Crested potentilla Perennial herb  
Potentilla diversifolia Varileaf cinquefoil Perennial herb  
Potentilla diversifolia var. diversifolia Varileaf cinquefoil Perennial herb  
Potentilla drummondii Drummond's cinquefoil Perennial herb 2
Potentilla drummondii ssp. breweri Brewer's cinquefoil Perennial herb 1
Potentilla drummondii ssp. bruceae Bruce's cinquefoil Perennial herb 1
Potentilla drummondii ssp. drummondii Drummond's cinquefoil Perennial herb 2
Potentilla flabellifolia Fan leaved cinquefoil Perennial herb  
Potentilla glandulosa Gland cinquefoil Perennial herb 12
Potentilla glandulosa ssp. ashlandica Mountain cinquefoil Perennial herb  
Potentilla glandulosa ssp. ewanii Ewan's cinquefoil Perennial herb  
Potentilla glandulosa ssp. glandulosa Sticky cinquefoil Perennial herb  
Potentilla glandulosa ssp. globosa Common cinquefoil Perennial herb  
Potentilla glandulosa ssp. hansenii Hansen's cinquefoil Perennial herb  
Potentilla glandulosa ssp. nevadensis Nevada cinquefoil Perennial herb  
Potentilla glandulosa ssp. pseudorupestris False rock loving cinquefoil Perennial herb 1
Potentilla glandulosa ssp. reflexa Sticky cinquefoil Perennial herb  
Potentilla glaucophylla Blueleaf cinquefoil Perennial herb  
Potentilla glaucophylla var. glaucophylla Blueleaf cinquefoil Perennial herb  
Potentilla gracilis Northwest cinquefoil Perennial herb 12
Potentilla gracilis var. fastigiata Slender cinquefoil Perennial herb  
Potentilla gracilis var. gracilis Slender cinquefoil Perennial herb  
Potentilla gracilis var. pulcherrima White leaved cinquefoil Perennial herb  
Potentilla palustris Marsh cinquefoil Perennial herb 5
Potentilla pensylvanica var. ovium Pennsylvania cinquefoil Perennial herb  
Potentilla pensylvanica var. pensylvanica Pennsylvania cinquefoil Perennial herb  
Potentilla pensylvanica var. strigosa Pennsylvania cinquefoil Perennial herb  
Primula clevelandii Padre's shooting star Perennial herb 8
Primula hendersonii Mosquito bill Perennial herb 10
Primula jeffreyi Sierra shooting star Perennial herb 3
Primula suffrutescens Sierran primrose Perennial herb  
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. parvifolia Drops of gold Perennial herb  
Prosartes hookeri var. trachyandra Drops of gold Perennial herb 6
Prosartes smithii Largeflower fairybells Perennial herb 5
Prunella vulgaris Self heal Perennial herb 18
Prunella vulgaris var. lanceolata Mountain selfheal Perennial herb 7
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 canescens ssp. thermale Wright's cudweed Perennial herb  
Pseudognaphalium microcephalum Wright's cudweed Perennial herb 3
Pseudognaphalium stramineum Cottonbatting plant Perennial herb 3
Pseudognaphalium thermale Small headed cudweed Perennial herb  
Pseudoroegneria spicata Bluebunch wheatgrass Perennial grass 4
Pseudoroegneria spicata ssp. spicata Bent grass Perennial grass 3
Pseudostellaria jamesiana Tubered starwort Perennial herb  
Psoralidium lanceolatum Scurf pea Perennial herb  
Pterospora andromedea Pine drops Perennial herb (parasitic)  
Ptilagrostis kingii King's ricegrass Perennial grass  
Puccinellia californica Sierra nevada alkali grass Perennial grass (rhizomatous)  
Puccinellia grandis Alaska alkali grass Perennial grass  
Puccinellia nuttalliana Nuttall's alkali grass Perennial grass 1
Pycnanthemum californicum California mint Perennial herb 4
Pyrola aphylla Leafless wintergreen Perennial herb  
Pyrola asarifolia Bog wintergreen Perennial herb  
Pyrola asarifolia ssp. asarifolia Bog wintergreen Perennial herb  
Pyrola crypta Cryptic wintergreen Perennial herb  
Pyrola dentata Toothed wintergreen Perennial herb  
Pyrola picta White veined shinleaf Perennial herb  
Pyrrocoma carthamoides Largeflower goldenweed Perennial herb  
Pyrrocoma carthamoides var. cusickii Cusick's columbia pyrrocoma Perennial herb  
Pyrrocoma racemosa Racemose pyrrocoma Perennial herb  
Pyrrocoma racemosa var. pinetorum Pine pyrrocoma Perennial herb  
Raillardella pringlei Showy raillardella Perennial herb (rhizomatous)  
Raillardiopsis muirii Muir's raillardella Perennial herb (rhizomatous)  
Raillardiopsis scabrida Scabrid raillardella Perennial herb  
Ranunculus alismifolius Common water plantain buttercup Perennial herb  
Ranunculus alismifolius var. alismellus Slender buttercup Perennial herb  
Ranunculus alismifolius var. alismifolius Water plantain buttercup Perennial herb  
Ranunculus alismifolius var. hartwegii Common water plantain buttercup Perennial herb  
Ranunculus aquatilis Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. aquatilis Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. capillaceus Threadleaf crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. diffusus Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. hispidulus White water crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. subrigidus Longbeak buttercup Perennial herb (aquatic)  
Ranunculus aquatilus var. subrigidus Perennial herb (aquatic)  
Ranunculus californicus Common buttercup Perennial herb 11
Ranunculus californicus var. californicus Common buttercup Perennial herb 2
Ranunculus canus Hartweg's buttercup Perennial herb  
Ranunculus cymbalaria var. saximontanus Rocky mountain buttercup Perennial herb  
Ranunculus eschscholtzii Eschscholtz's buttercup Perennial herb  
Ranunculus eschscholtzii var. eschscholtzii Eschscholtz's buttercup Perennial herb  
Ranunculus flabellaris Water buttercup Perennial herb  
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. dissectus Western buttercup Perennial herb  
Ranunculus occidentalis var. howellii Western buttercup Perennial herb  
Ranunculus occidentalis var. occidentalis Western buttercup Perennial herb  
Ranunculus orthorhynchus Bloomer's buttercup Perennial herb  
Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup Perennial herb  
Ranunculus populago Cusick's buttercup Perennial herb  
Rhynchospora alba White beaked rush Perennial grass (rhizomatous)  
Rhynchospora capitellata Capitate beaked rush Perennial grass  
Rhynchospora globularis var. globularis Round headed beaked rush Perennial grass (rhizomatous)  
Romanzoffia californica California romanzoffia Perennial herb 4
Romanzoffia sitchensis Sitka romanzoffia Perennial herb 1
Rorippa gambelii Gambel's water cress Perennial herb (rhizomatous)  
Rorippa gambellii Gambel's yellowcress Perennial herb (rhizomatous)  
Rorippa nasturtium-aquaticum Water cress Perennial herb (aquatic) 3
Rudbeckia californica var. californica California cone flower Perennial herb 5
Rudbeckia californica var. glauca Serpentine cone flower Perennial herb  
Rudbeckia californica var. intermedia California cone flower Perennial herb  
Rudbeckia glaucescens Waxy coneflower Perennial herb  
Rudbeckia klamathensis Klamath coneflower Perennial herb  
Rudbeckia occidentalis var. occidentalis Western cone flower Perennial herb 10
Rumex californicus California dock Perennial herb  
Rumex salicifolius Willow leaved dock Perennial herb 6
Rumex salicifolius var. crassus Willow leaved dock Perennial herb  
Rumex salicifolius var. denticulatus Smooth valved willow dock Perennial herb  
Rumex salicifolius var. lacustris Lake dock Perennial herb (aquatic)  
Rumex salicifolius var. salicifolius Willow dock Perennial herb 6
Rumex salicifolius var. transitorius Willow dock Perennial herb  
Rumex salicifolius var. triangulivalvis Willow dock Perennial herb  
Rumex triangulivalvis Willow dock Perennial herb  
Rupertia physodes Common rupertia Perennial herb 2
Sabulina decumbens The Lassics sandwort Perennial herb  
Sabulina rosei Peanut sandwort Perennial herb  
Sabulina stolonifera Scott Mountain sandwort Perennial herb  
Sagina saginoides Alpine pearlwort Perennial herb  
Salicornia subterminalis Parish's glasswort Perennial herb 4
Salvia sonomensis Sonoma sage Perennial herb 18
Sanguisorba officinalis Great burnet Perennial herb (rhizomatous) 2
Sanguisorba officinalis ssp. microcephala Great burnet Perennial herb (rhizomatous) 2
Sanicula bipinnata Poison sanicle Perennial herb  
Sanicula bipinnatifida Purple sa