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Criteria:   found in Humboldt County  •   is native  •  group by lifeform
2908  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual605 plants
Achyrachaena mollis Blow wives Annual herb 2
Acmispon americanus American bird's foot trefoil Annual herb 3
Acmispon americanus var. americanus Spanish lotus Annual herb 1
Acmispon brachycarpus Short podded lotus Annual herb  
Acmispon denticulatus Toothed lotus Annual herb  
Acmispon micranthus Small flowered lotus Annual herb 2
Acmispon parviflorus Hill lotus Annual herb  
Acmispon strigosus Strigose lotus Annual herb 3
Acmispon wrangelianus Chilean trefoil Annual herb  
Agoseris heterophylla Mountain dandelion Annual herb  
Agoseris heterophylla var. heterophylla Annual agoseris Annual herb  
Agrostis microphylla Little leaf bentgrass Annual grass  
Alopecurus saccatus Foxtail Annual grass  
Amsinckia eastwoodiae Eastwood's fiddleneck Annual herb 1
Amsinckia intermedia Common fiddleneck Annual herb  
Amsinckia lunaris Bent flowered fiddleneck Annual herb  
Amsinckia lycopsoides Tarweed fiddleneck Annual herb  
Amsinckia menziesii Fiddleneck Annual herb 1
Amsinckia menziesii var. intermedia Orange flowered menzies' fiddleneck Annual herb 1
Amsinckia menziesii var. menziesii Small flowered fiddleneck Annual herb 1
Amsinckia retrorsa Rigid fiddleneck Annual herb  
Amsinckia spectabilis Seaside fiddleneck Annual herb  
Anagallis minima Chaffweed Annual herb  
Antirrhinum vexillo-calyculatum Brewer's snapdragon Annual herb  
Antirrhinum vexillocalyculatum Wiry snapdragon Annual herb  
Antirrhinum vexillocalyculatum ssp. breweri Wiry snapdragon Annual herb  
Aphanes occidentalis Ladie's mantle Annual, Perennial herb  
Aphyllon purpureum Naked broom rape Annual herb  
Aristida oligantha Oldfield three awn Annual grass  
Astragalus rattanii Rattan's milk vetch Annual herb  
Athysanus pusillus Dwarf athysanus Annual herb  
Atriplex gmelinii Gmelin's saltbush Annual herb  
Atriplex gmelinii var. gmelinii Gmelin's saltbush Annual herb  
Atriplex patula Spear oracle Annual herb 3
Atriplex patula var. obtusa Spear oracle Annual herb  
Beckmannia syzigachne American sloughgrass Annual grass 5
Bidens frondosa Sticktight Annual herb  
Bromus orcuttianus Orcutt's brome grass Annual grass 1
Bromus vulgaris Common brome Annual grass 1
Calandrinia ciliata Redmaids Annual herb 7
Calandrinia menziesii Calandrinia Annual herb 7
Callitriche heterophylla var. bolanderi Bolander's water starwort Annual herb  
Callitriche heterophylla var. heterophylla Varied leaved water starwort Annual herb  
Callitriche marginata Winged water starwort Annual herb (aquatic)  
Callitriche palustris Vernal water-starwort Annual herb  
Callitriche trochlearis Water starwort Annual herb (aquatic)  
Callitriche verna Water starwort Annual herb  
Calycadenia fremontii Fremont's calycadenia Annual herb  
Calycadenia micrantha Small flowered calycadenia Annual herb  
Calycadenia multiglandulosa Rosin weed Annual herb  
Calycadenia truncata Rosin weed Annual herb  
Calycadenia truncata ssp. microcephala Oregon western rosinweed Annual herb  
Calyptridium umbellatum Pussy toes Annual, Perennial herb 3
Camissonia contorta Contorted sun cup Annual herb  
Camissonia strigulosa Contorted primrose Annual herb  
Camissoniopsis cheiranthifolia ssp. cheiranthifolia Beach evening-primrose Annual, Perennial herb 1
Cardamine oligosperma Idaho bittercress Annual, Perennial herb  
Castilleja ambigua Johnny nip Annual herb  
Castilleja ambigua ssp. ambigua Johnny nip Annual herb  
Castilleja ambigua ssp. humboldtiensis Humboldt bay owl's clover Annual herb (hemiparasitic)  
Castilleja ambigua var. ambigua Johnny-nip Annual herb  
Castilleja ambigua var. humboldtiensis Humboldt bay owl's-clover Annual herb  
Castilleja attenuata Narrow leaved owl's clover Annual herb  
Castilleja densiflora Dense flower owl's clover Annual herb  
Castilleja exserta Owl's clover Annual herb 10
Castilleja exserta ssp. exserta Purple owl's clover Annual herb 5
Castilleja exserta ssp. latifolia Purple owl's clover Annual herb  
Castilleja rubicundula Cream sacs Annual herb  
Castilleja rubicundula ssp. lithospermoides Cream sacs Annual herb  
Castilleja tenuis Hairy owl's clover Annual herb  
Caulanthus lasiophyllus California mustard Annual herb  
Centaurium davyi Davy's centaury Annual herb  
Centaurium exaltatum Cancha lagua Annual herb  
Centaurium muehlenbergii Monterey centaury Annual herb 2
Centaurium venustum Beautiful centaury Annual herb  
Centromadia fitchii Spikeweed Annual herb  
Centunculus minimus False pimpernel Annual herb  
Chaenactis douglasii Chaenactis Annual, Perennial herb  
Chaenactis douglasii var. douglasii Dusty pincushions Annual, Perennial herb  
Chamaesyce serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge Annual herb  
Chamomilla occidentalis Western chamomile Annual herb  
Chamomilla suaveolens Common pineapple weed Annual herb  
Chenopodium atrovirens Dark green goosefoot Annual herb  
Chenopodium incognitum Masked goosefoot Annual herb  
Chenopodium rubrum Red goosefoot Annual herb  
Chenopodium rubrum var. rubrum Red goosefoot Annual herb  
Chloropyron maritimum Salt marsh bird's beak Annual herb  
Chloropyron maritimum ssp. palustre Point reyes bird's-beak Annual herb  
Cicendia quadrangularis Common microcalis Annual herb  
Cirsium quercetorum Brownie thistle Annual, Perennial herb 1
Clarkia affinis Chaparral fairyfan Annual herb  
Clarkia amoena Farewell to spring Annual herb 17
Clarkia amoena ssp. amoena Farewell to spring Annual herb 2
Clarkia amoena ssp. huntiana Farewell to spring Annual herb  
Clarkia amoena ssp. whitneyi Farewell to spring Annual herb 2
Clarkia concinna Red ribbons Annual herb 5
Clarkia concinna ssp. concinna Red ribbons Annual herb  
Clarkia davyi Davy's clarkia Annual herb 1
Clarkia gracilis Graceful clarkia Annual herb 3
Clarkia gracilis ssp. gracilis Graceful clarkia Annual herb  
Clarkia gracilis ssp. sonomensis Sonoma clarkia Annual herb  
Clarkia gracilis ssp. tracyi Tracy's clarkia Annual herb 1
Clarkia purpurea Purple clarkia Annual herb 9
Clarkia purpurea ssp. purpurea Purple clarkia Annual herb 2
Clarkia purpurea ssp. quadrivulnera Purple clarkia Annual herb 4
Clarkia purpurea ssp. viminea Large godetia Annual herb  
Clarkia rhomboidea Tongue clarkia Annual herb 1
Clarkia rubicunda Farewell to spring Annual herb 9
Clarkia unguiculata Woodland clarkia Annual herb 19
Claytonia exigua Little spring beauty Annual herb  
Claytonia exigua ssp. exigua Viridis Annual herb  
Claytonia exigua ssp. glauca Blue leaved spring beauty Annual herb  
Claytonia parviflora Narrow leaved miner's lettuce Annual herb 2
Claytonia parviflora ssp. parviflora Miner'slettuce Annual herb 1
Claytonia parviflora ssp. utahensis Streambank springbeauty Annual herb 1
Claytonia perfoliata Miner's lettuce Annual herb 6
Claytonia perfoliata ssp. intermontana Miner's lettuce Annual herb  
Claytonia perfoliata ssp. mexicana Southern miner's lettuce Annual herb  
Claytonia perfoliata ssp. perfoliata Claytonia Annual herb  
Claytonia rubra Red stemmed spring beauty Annual herb  
Claytonia rubra ssp. depressa Red stemmed spring beauty Annual herb  
Claytonia rubra ssp. rubra Red stemmed miner's lettuce Annual herb  
Claytonia saxosa Brandegee's spring beauty Annual herb  
Claytonia washingtoniana Suksdorf's spring beauty Annual herb  
Collinsia bartsiifolia White collinsia Annual herb 1
Collinsia corymbosa Round headed chinese houses Annual herb  
Collinsia grandiflora Large flowered collinsia Annual herb 2
Collinsia greenei Greene's collinsia Annual herb  
Collinsia heterophylla Chinese houses Annual herb 20
Collinsia linearis Narrow leaf collinsia Annual herb  
Collinsia parviflora Few flowered blue eyed mary Annual herb 1
Collinsia rattanii Rattan's collinsia Annual herb 1
Collinsia sparsiflora Few flowered collinsia Annual herb  
Collinsia sparsiflora var. arvensis Field collinsia Annual herb  
Collinsia sparsiflora var. collina Hillside collinsia Annual herb  
Collinsia sparsiflora var. sparsiflora Few flowered collinsia Annual herb  
Collinsia tinctoria Tincture plant Annual herb 1
Collinsia torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. wrightii Wright's collinsia Annual herb  
Collomia diversifolia Serpentine collomia Annual herb  
Collomia grandiflora Large flowered collomia Annual herb 4
Collomia heterophylla Varied leaved collomia Annual herb  
Collomia linearis Narrow leaved collomia Annual herb  
Collomia tinctoria Yellow staining collomia Annual herb  
Collomia tracyi Tracy's collomia Annual herb  
Conyza canadensis Canada horseweed Annual herb  
Conyza canadensis var. canadensis Canadian horseweed Annual herb  
Cordylanthus maritimus Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. palustris Point reyes bird's beak Annual herb (hemiparasitic)  
Cordylanthus tenuis Slender bird's beak Annual herb  
Cordylanthus tenuis ssp. viscidus Viscid bird's beak Annual herb  
Crassula aquatica Aquatic pygmy weed Annual herb  
Crassula connata Sand pygmy weed Annual herb 1
Crassula saginoides Aquatic pygmy weed Annual herb  
Crocidium multicaule Spring gold Annual herb  
Croton setiger Turkey-mullein Annual herb 4
Croton setigerus Dove weed Annual herb 1
Cryptantha affinis Common cryptantha Annual herb  
Cryptantha flaccida Beaked cryptantha Annual herb  
Cryptantha intermedia Common cryptanth Annual herb  
Cryptantha leiocarpa Popcorn flower Annual herb  
Cryptantha rostellata Beaked cryptantha Annual herb  
Cryptantha simulans Pine cryptantha Annual herb  
Cryptantha torreyana Torrey's cryptantha Annual herb  
Cuscuta californica California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. breviflora California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. californica Short flowered dodder Annual herb, Vine (parasitic)  
Cuscuta campestris Field dodder Annual herb, Vine (parasitic)  
Cuscuta occidentalis California dodder Annual herb, Vine (parasitic)  
Cuscuta pacifica Goldenthread Annual herb, Vine (parasitic)  
Cuscuta pacifica var. pacifica Dodder Annual herb, Vine (parasitic)  
Cuscuta pentagona Western field dodder Annual herb, Vine (parasitic)  
Cuscuta salina Saltmarsh dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. major Dodder Annual herb, Vine (parasitic)  
Cuscuta subinclusa Canyon dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii Mountain dodder Annual herb, Vine (parasitic)  
Cyperus acuminatus Short pointed cyperus Annual grass  
Cyperus squarrosus Awned cyperus Annual grass  
Daucus pusillus Wild carrot Annual herb 1
Deinandra corymbosa Coastal tarweed Annual herb 1
Deinandra corymbosa ssp. corymbosa Coastal tarweed Annual herb  
Deschampsia danthonioides Annual hairgrass Annual grass  
Descurainia incisa Mountain tansy mustard Annual herb  
Descurainia pinnata Yellow tansy mustard Annual herb  
Diplacus douglasii Purple mouse ears Annual herb 1
Diplacus kelloggii Kellogg's monkeyflower Annual herb  
Diplacus nanus Dwarf monkey flower Annual herb  
Dodecahema leptoceras Slender horned spineflower Annual herb  
Downingia bella Hoover's downingia Annual herb  
Downingia elegans Elegant downingia Annual herb  
Downingia insignis Harlequin downingia Annual herb  
Downingia willamettensis Cascade downingia Annual herb  
Echinochloa muricata var. microstachya Rough barnyardgrass Annual grass  
Eleocharis engelmannii Engelmann's spikerush Annual grass  
Eleocharis obtusa Broad spiked spikerush Annual grass 3
Eleocharis obtusa var. engelmannii Engelmann's spikerush Annual grass  
Epilobium brachycarpum Willow herb Annual herb 1
Epilobium campestre Smooth boisduvalia Annual herb  
Epilobium densiflorum Willow herb Annual herb 1
Epilobium foliosum California willowherb Annual herb  
Epilobium minutum Minute willowherb Annual herb  
Epilobium paniculatum var. jucundum Autumn willowherb Annual herb 1
Epilobium pygmaeum Smooth boisduvalia Annual herb  
Epilobium torreyi Narrow boisduvalia Annual herb  
Eragrostis hypnoides Teal lovegrass Annual grass  
Eragrostis mexicana Mexican lovegrass Annual grass  
Eragrostis mexicana ssp. virescens Orcutt's eragrostis Annual grass  
Eragrostis pectinacea Tufted lovegrass Annual grass  
Eragrostis pectinacea var. pectinacea Tufted lovegrass Annual grass  
Eremocarpus setigerus Turkey mullein Annual herb 4
Erigeron canadensis Canada horseweed Annual herb  
Erigeron strigosus var. septentrionalis Prairie fleabane Annual, Perennial herb  
Erigeron strigosus var. strigosus Prairie fleabane Annual, Perennial herb  
Eriogonum luteolum Wicker buckwheat Annual herb  
Eriogonum luteolum var. luteolum Golden buckwheat Annual herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Erythranthe alsinoides Chickweed monkeyflower Annual herb  
Erythranthe arvensis Annual herb  
Erythranthe breweri Brewer's monkeyflower Annual herb  
Erythranthe floribunda Many flowered monkey flower Annual herb 1
Erythranthe grandis Annual herb  
Erythranthe guttata Yellow monkey flower Annual, Perennial herb (rhizomatous) 37
Erythranthe microphylla Small leaved monkeyflower Annual herb  
Erythranthe pulsiferae Candelabrum monkey flower Annual herb  
Erythranthe trinitiensis Pink-margined monkeyflower Annual herb  
Eschscholzia californica California poppy Annual, Perennial herb 50
Euphorbia crenulata Chinesecaps Annual, Perennial herb  
Euphorbia serpillifolia Thyme-leafed spurge Annual herb  
Euphorbia serpillifolia ssp. serpillifolia Thyme leafed spurge Annual, Perennial herb  
Euphorbia spathulata Reticulate seeded spurge Annual herb  
Festuca microstachys Small fescue Annual grass  
Festuca octoflora Sixweeks grass Annual grass 5
Filago californica California filago Annual herb  
Floerkea proserpinacoides False mermaid Annual herb  
Galium aparine Cleavers Annual herb  
Galium bifolium Low mountain bedstraw Annual herb  
Galium triflorum Sweet bedstraw Annual herb  
Gayophytum diffusum Spreading groundsmoke Annual herb  
Gayophytum diffusum ssp. parviflorum Small flowered groundsmoke Annual herb  
Gayophytum heterozygum Zig zag gayophytum Annual herb  
Gayophytum humile Dwarf groundsmoke Annual herb  
Gayophytum racemosum Black foot gayophytum Annual herb  
Gayophytum ramosissimum Pinyon gayophytum Annual herb  
Gentianopsis simplex Hiker's fringed gentian Annual herb  
Geranium bicknellii Bicknell's geranium Annual herb  
Geranium carolinianum Carolina geranium Annual herb  
Gilia capillaris Smooth leaved gilia Annual herb  
Gilia capitata Blue field gilia Annual herb 18
Gilia capitata ssp. capitata Blue field gilia Annual herb 2
Gilia capitata ssp. chamissonis Blue field gilia Annual herb 3
Gilia capitata ssp. pacifica Pacific blue field gilia Annual herb  
Gilia inconspicua Shy gilia Annual herb  
Gilia millefoliata Manyleaf gilia Annual herb  
Gilia sinistra Clockwise gilia Annual herb  
Gilia sinistra ssp. pinnatisecta Cut leaf clockwise gilia Annual herb  
Gilia sinistra ssp. sinistra Clockwise gilia Annual herb  
Gilia tricolor Bird's eyes Annual herb 14
Gilia tricolor ssp. diffusa Bird's eyes Annual herb  
Gilia tricolor ssp. tricolor Bird's eyes Annual herb 1
Githopsis specularioides Venus' looking glass Annual herb  
Gnaphalium californicum California everlasting Annual, Perennial herb 14
Gnaphalium palustre Lowland cudweed Annual herb  
Gnaphalium purpureum Purple cudweed Annual, Perennial herb 1
Gnaphalium stramineum Cotton batting Annual, Perennial herb 4
Gratiola ebracteata Common hedge hyssop Annual herb  
Guillenia lasiophylla Shaggy thelypod Annual herb  
Helianthus bolanderi Bolander's sunflower Annual, Perennial herb 2
Hemizonella minima Opposite leaved tarweed Annual herb  
Hemizonia congesta Hayfield tarweed Annual herb 5
Hemizonia congesta ssp. calyculata Mendocino tarplant Annual herb  
Hemizonia congesta ssp. clevelandii Cleveland's tarweed Annual herb  
Hemizonia congesta ssp. tracyi Tracy's tarplant Annual herb  
Hemizonia corymbosa Coastal tarweed Annual herb 1
Hemizonia corymbosa ssp. macrocephala Central coast tarweed Annual herb  
Hemizonia fitchii Spikeweed Annual herb  
Hesperevax acaulis Dwarf evax Annual herb  
Hesperevax acaulis var. robustior Big evax Annual herb  
Hesperevax sparsiflora Few flowered evax Annual herb  
Hesperevax sparsiflora var. brevifolia Short leaved evax Annual herb  
Hesperolinon adenophyllum Glandular western flax Annual herb  
Hesperolinon micranthum Small flower western flax Annual herb  
Heterocodon rariflorum Heterocodon Annual herb  
Heterotheca sessiliflora Golden aster Annual herb 9
Hordeum depressum Alkali barley Annual grass 3
Howellia aquatilis Water howellia Annual herb (aquatic)  
Hypericum anagalloides Creeping St. John's wort Annual, Perennial herb 1
Isolepis carinata Keeled bulrush Annual grass  
Isolepis cernua Low bulrush Annual grass 14
Juncus bufonius Common toad rush Annual grass 6
Juncus bufonius var. bufonius Toad rush Annual grass  
Lagophylla glandulosa Glandular hareleaf Annual herb  
Lagophylla ramosissima Common hareleaf Annual herb  
Landoltia punctata Dotted duckmeat Annual, Perennial herb  
Lasthenia californica Goldfields Annual herb 12
Lasthenia californica ssp. californica California goldfields Annual herb 2
Lasthenia glaberrima Smooth goldfields Annual herb  
Lasthenia gracilis Needle goldfields Annual herb  
Lasthenia macrantha Perennial goldfields Annual herb 3
Lasthenia macrantha ssp. macrantha Perennial goldfields Annual herb 3
Lasthenia maritima Maritime goldfields Annual herb  
Layia carnosa Beach layia Annual herb  
Layia gaillardioides Woodland layia Annual herb 4
Lepidium densiflorum Common pepper grass Annual herb  
Lepidium lasiocarpum Shaggyfruit pepperweed Annual herb  
Lepidium latipes Dwarf pepper grass Annual herb  
Lepidium nitidum Shining pepper grass Annual herb 2
Lepidium oblongum Veiny pepper grass Annual herb  
Lepidium oxycarpum Sharp podded pepper grass Annual herb  
Lepidium strictum Peppergrass Annual herb  
Leptosiphon acicularis Bristly leptosiphon Annual herb  
Leptosiphon androsaceus False babystars Annual herb 1
Leptosiphon bicolor True babystars Annual herb  
Leptosiphon bolanderi Bolander's linanthus Annual herb  
Leptosiphon ciliatus Whiskerbrush Annual herb 1
Leptosiphon ciliatus ssp. ciliatus Whiskerbrush Annual herb  
Leptosiphon filipes Thread linanthus Annual herb  
Leptosiphon harknessii Harkness' flaxflower Annual herb  
Leptosiphon latisectus Broad lobed leptosiphon Annual herb  
Leptosiphon parviflorus Variable linanthus Annual herb 1
Lessingia nemaclada Thread stem lessingia Annual herb  
Limnanthes douglasii Common meadow foam Annual herb 8
Limnanthes douglasii ssp. douglasii Douglas' meadowfoam Annual herb 1
Limnanthes douglasii ssp. nivea Snow white meadowfoam Annual herb 4
Linanthus acicularis Bristly linanthus Annual herb  
Linanthus androsaceus Common linanthus Annual herb 1
Linanthus bicolor True baby stars Annual herb  
Linanthus bolanderi Bolander's linanthus Annual herb  
Linanthus ciliatus Whisker brush linanthus Annual herb 1
Linanthus filipes Filiform linanthus Annual herb  
Linanthus harknessii Harkness linanthus Annual herb  
Linanthus latisectus Napa linanthus Annual herb  
Linanthus parviflorus Common linanthus Annual herb 1
Linaria canadensis Toad flax Annual, Perennial herb 1
Linaria canadensis var. texana Toad flax Annual, Perennial herb 1
Lipocarpha occidentalis Western hemicarpha Annual grass  
Logfia filaginoides California cottonrose Annual herb  
Lotus denticulatus Toothed lotus Annual herb  
Lotus hamatus Small flowered lotus Annual herb 2
Lotus humistratus Short podded lotus Annual herb  
Lotus micranthus Hill lotus Annual herb  
Lotus purshianus Bird's foot trefoil Annual herb 6
Lotus purshianus var. purshianus Spanish lotus Annual herb 1
Lotus strigosus Strigose lotus Annual herb 3
Lotus unifoliolatus American bird's foot trefoil Annual herb 1
Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil Annual herb  
Lotus wrangelianus Chilean trefoil Annual herb  
Lupinus affinis Fleshy lupine Annual herb  
Lupinus bicolor Lupine Annual, Perennial herb 16
Lupinus luteolus Butter lupine Annual herb 1
Lupinus microcarpus var. densiflorus Chick lupine Annual herb 13
Lupinus nanus Valley sky lupine Annual herb 12
Lupinus pachylobus Big pod lupine Annual herb  
Lysimachia minima Chaffweed Annual herb  
Madia anomala Tarweed Annual herb  
Madia citriodora Lemon scented tarweed Annual herb  
Madia elegans Common madia Annual herb 14
Madia elegans ssp. elegans Common madia Annual herb 1
Madia exigua Small tarweed Annual herb  
Madia glomerata Mountain tarweed Annual herb  
Madia gracilis Gumweed Annual herb 1
Madia minima Little tarweed Annual herb  
Madia sativa Coastal tarweed Annual herb  
Malacothrix clevelandii Cleveland's malacothrix Annual herb  
Malacothrix floccifera Woolly malacothrix Annual herb 1
Matricaria discoidea Pineapple weed Annual herb 3
Matricaria occidentalis Valley mayweed Annual herb  
Mentzelia dispersa Scattered blazing star Annual herb  
Micropus californicus Q tips Annual herb 1
Micropus californicus var. californicus Slender cottonweed Annual herb  
Microseris acuminata Sierra foothills microseris Annual herb 1
Microseris bigelovii Coast microseris Annual herb  
Microseris douglasii Douglas' microseris Annual herb  
Microsteris gracilis Slender phlox Annual herb  
Microsteris gracilis var. gracilis Slender phlox Annual herb  
Mimetanthe pilosa Snouted monkey flower Annual herb  
Mimulus alsinoides Chickweed monkeyflower Annual herb  
Mimulus breweri Brewer's monkeyflower Annual herb  
Mimulus douglasii Purple mouse ears Annual herb 1
Mimulus floribundus Many flowered monkey flower Annual herb 1
Mimulus guttatus Yellow monkey flower Annual, Perennial herb (rhizomatous) 36
Mimulus kelloggii Kellogg's monkeyflower Annual herb  
Mimulus microphyllus Small leaved monkeyflower Annual herb 35
Mimulus nanus Dwarf monkey flower Annual herb  
Mimulus nanus var. nanus Dwarf monkey flower Annual herb  
Mimulus parishii Parish mimulus Annual herb 35
Mimulus pilosus Snouted monkey flower Annual herb  
Mimulus pulsiferae Candelabrum monkey flower Annual herb  
Minuartia californica Sandwort Annual herb  
Minuartia douglasii Douglas' sandwort Annual herb  
Minuartia pusilla Annual sandwort Annual herb  
Monardella breweri ssp. glandulifera Brewer's monardella Annual herb 1
Monardella breweri ssp. lanceolata Mustang mint Annual herb 1
Monardella breweri ssp. microcephala Brewer's monardella Annual herb 1
Monardella lanceolata Mustang mint Annual herb 1
Montia diffusa Diffuse miner's lettuce Annual herb  
Montia fontana Water montia Annual herb  
Montia howellii Howell's montia Annual herb  
Montia linearis Narrow leaved water chickweed Annual herb  
Muhlenbergia filiformis Slender muhly Annual, Perennial grass  
Myosurus minimus Little mouse tail Annual herb  
Navarretia capillaris Miniature gilia Annual herb  
Navarretia divaricata Mountain navarretia Annual herb  
Navarretia divaricata ssp. divaricata Mountain navarretia Annual herb  
Navarretia divaricata ssp. vividior Mountain navarretia Annual herb  
Navarretia intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. propinqua Great basin navarretia Annual herb  
Navarretia leucocephala White headed navarretia Annual herb  
Navarretia leucocephala ssp. bakeri Baker's navarretia Annual herb  
Navarretia linearifolia Navarretia Annual herb  
Navarretia linearifolia ssp. linearifolia Navarretia Annual herb  
Navarretia linearifolia ssp. pinnatisecta Pinnate-leaved navarretia Annual herb  
Navarretia mellita Skunk navarretia Annual herb  
Navarretia paradoxiclara Navarretia Annual herb  
Navarretia paradoxinota Navarretia Annual herb  
Navarretia propinqua Annual herb  
Navarretia pubescens Purple navarretia Annual herb  
Navarretia sinistra Alva day's pincushionplant Annual herb  
Navarretia sinistra ssp. pinnatisecta Pinnate leaved navarretia Annual herb  
Navarretia sinistra ssp. sinistra Alva day's gilia Annual herb  
Navarretia squarrosa Skunkweed Annual herb  
Navarretia tagetina Marigold navarretia Annual herb  
Navarretia viscidula Sticky navarretia Annual herb  
Navarretia vividior Mountain navarretia Annual herb  
Nemophila heterophylla Canyon nemophila Annual herb  
Nemophila maculata Five spot Annual herb 16
Nemophila menziesii Baby blue eyes Annual herb 18
Nemophila menziesii var. atomaria Baby blue eyes Annual herb 1
Nemophila menziesii var. menziesii Baby blue eyes Annual herb 1
Nemophila parviflora Small flowered nemophila Annual herb  
Nemophila parviflora var. austiniae Rebecca austin's nemophila Annual herb  
Nemophila parviflora var. parviflora Small flowered nemophila Annual herb  
Nemophila pedunculata Meadow nemophila Annual herb  
Nicotiana bigelovii var. wallacei Indian tobacco Annual herb  
Nicotiana quadrivalvis Indian tobacco Annual herb 2
Nuttallanthus canadensis Canada toadflax Annual, Biennial herb  
Nuttallanthus texanus Blue toadflax Annual, Perennial herb 1
Orthocarpus cuspidatus Broad scaled owl's clover Annual herb 1
Orthocarpus cuspidatus ssp. copelandii Copeland's owl's clover Annual herb  
Orthocarpus cuspidatus ssp. cuspidatus Siskiyou mtns. orthocarpus Annual herb  
Orthocarpus imbricatus Imbricate owl's clover Annual herb  
Oxalis pilosa Hairy wood sorrel Annual herb  
Panicum capillare Old witch grass Annual grass 2
Panicum oligosanthes Heller's rosette grass Annual grass  
Panicum oligosanthes var. scribnerianum Scribner's rosette grass Annual grass  
Persicaria lapathifolia Common knotweed Annual herb  
Phacelia ciliata Great valley phacelia Annual herb 1
Phacelia ciliata var. ciliata Great valley phacelia Annual herb  
Phacelia malvifolia Stinging phacelia Annual herb 1
Phacelia rattanii Rattan's phacelia Annual herb  
Phalaris angusta Timothy canarygrass Annual grass  
Phlox gracilis Annual phlox Annual herb  
Plagiobothrys bracteatus Bracted allocarya Annual herb  
Plagiobothrys cognatus Popcorn flower Annual herb  
Plagiobothrys hispidulus Harsh allocarya Annual herb  
Plagiobothrys nothofulvus Rusty haired popcorn flower Annual herb  
Plagiobothrys reticulatus Reticulate popcorn flower Annual herb  
Plagiobothrys reticulatus var. reticulatus Reticulate popcorn flower Annual herb  
Plagiobothrys reticulatus var. rossianorum Fort ross allocarya Annual herb  
Plagiobothrys scouleri Scouler's popcornflower Annual herb  
Plagiobothrys scouleri var. hispidulus Sleeping popcornflower Annual herb  
Plagiobothrys tenellus Slender popcorn flower Annual herb  
Plagiobothrys torreyi var. diffusus Torrey's popcornflower Annual herb  
Plantago bigelovii Long leaf plantain Annual herb  
Plantago elongata Coastal plantain Annual herb  
Plantago erecta California plantain Annual herb 6
Platystemon californicus Cream cups Annual herb 2
Plectritis brachystemon Short spurred plectritis Annual herb  
Plectritis ciliosa Long spurred plectritis Annual herb  
Plectritis ciliosa ssp. insignis Showy plectritis Annual herb  
Plectritis congesta Sea blush Annual herb 1
Plectritis congesta ssp. brachystemon Shortspur seablush Annual herb  
Plectritis congesta ssp. congesta Sea blush Annual herb  
Plectritis macrocera Plectritis Annual herb  
Poa bolanderi Bolander's bluegrass Annual grass  
Poa howellii Howell's blue grass Annual grass  
Pogogyne zizyphoroides Sacramento mint Annual herb  
Polygonum austiniae Rebecca austin's knotweed Annual herb  
Polygonum californicum California knotweed Annual herb  
Polygonum douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. austiniae Rebecca austin's knotweed Annual herb  
Polygonum douglasii ssp. douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. johnstonii Knotweed Annual herb  
Polygonum douglasii ssp. spergulariiforme Spurry knotweed Annual herb  
Polygonum lapathifolium Common knotweed Annual herb  
Polygonum minimum Little mountain knotweed Annual herb  
Polygonum parryi Parry's knotweed Annual herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. kelloggii Kellogg's knotweed Annual herb  
Polygonum sawatchense Knotweed Annual herb  
Polygonum sawatchense ssp. oblivium Knotweed Annual, Perennial herb  
Polygonum sawatchense ssp. sawatchense Knotweed Annual, Perennial herb  
Polygonum spergulariiforme Spurry knotweed Annual herb  
Pseudognaphalium californicum Ladies' tobacco Annual, Perennial herb 13
Psilocarphus brevissimus Woolly marbles Annual herb  
Psilocarphus brevissimus var. brevissimus Woolly heads Annual herb  
Psilocarphus oregonus Woolly marbles Annual herb  
Psilocarphus tenellus Slender woolly heads Annual herb  
Rafinesquia californica California chicory Annual herb  
Ranunculus hebecarpus Pubescent fruited buttercup Annual herb  
Ranunculus lobbii Lobb's aquatic buttercup Annual herb (aquatic)  
Ranunculus pusillus Low buttercup Annual herb (aquatic)  
Ranunculus uncinatus Hooked fruit buttercup Annual, Perennial herb  
Ranunculus uncinatus var. parviflorus Small flowered hooked fruit buttercup Annual, Perennial herb  
Ranunculus uncinatus var. uncinatus Woodland buttercup Annual, Perennial herb  
Rigiopappus leptocladus Wire weed Annual herb  
Rorippa curvipes var. truncata Blunt yellow cress Annual herb  
Rorippa curvisiliqua Curvepod yellow cress Annual, Perennial herb  
Rorippa palustris Bog yellow cress Annual, Perennial herb  
Rorippa palustris ssp. palustris Bog yellowcress Annual, Perennial herb  
Rorippa palustris var. occidentalis Western bog yellow cress Annual, Perennial herb  
Rumex fueginus Golden dock Annual, Perennial herb  
Rumex maritimus Golden dock Annual, Perennial herb  
Rumex persicarioides Golden dock Annual, Perennial herb  
Sagina decumbens Trailing pearlwort Annual herb  
Sagina decumbens ssp. occidentalis Western pearlwort Annual herb  
Salicornia depressa Virginia glasswort Annual herb 7
Salvia columbariae Chia sage Annual herb 11
Scirpus cernuus Low clubrush Annual grass 14
Scirpus koilolepis Keeled bulrush Annual grass  
Scribneria bolanderi Scribneria Annual grass  
Sedum radiatum Coast range stonecrop Annual herb  
Sidalcea calycosa Checker mallow Annual herb 3
Sidalcea calycosa ssp. calycosa Checker mallow Annual herb  
Sidalcea diploscypha Fringed checker mallow Annual herb  
Silene californica California indian pink Annual herb 3
Solanum americanum White nightshade Annual, Perennial herb 2
Spergularia canadensis Canadian sandspurry Annual herb  
Spergularia canadensis var. occidentalis Northern sand spurrey Annual herb  
Spergularia marina Salt sand spurry Annual herb 1
Spergularia salina Salt sandspurry Annual herb 1
Spirodela punctata Dotted duckmeat Annual, Perennial herb  
Stellaria nitens Shining chickweed Annual herb  
Stephanomeria elata Santa barbara stephanomeria Annual herb  
Stephanomeria exigua Small wirelettuce Annual herb  
Stephanomeria virgata Twiggy wreath plant Annual herb 1
Streptanthus breweri Brewer's jewelflower Annual herb  
Streptanthus breweri var. breweri Brewer's jewelflower Annual herb  
Streptanthus tortuosus Jewelweed Annual, Perennial herb  
Streptanthus tortuosus var. orbiculatus Mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. suffrutescens Bush mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. tortuosus Mountain jewelflower Annual, Perennial herb  
Symphyotrichum hendersonii Henderson's aster Annual herb  
Symphyotrichum subspicatum Douglas aster Annual herb 9
Thysanocarpus curvipes Common fringe pod Annual herb 2
Thysanocarpus curvipes ssp. elegans Fringe Pod Annual herb  
Tonella tenella Small flowered tonella Annual herb  
Tracyina rostrata Beaked tracyina Annual herb  
Trichostema lanceolatum Vinegarweed Annual herb 2
Trichostema laxum Turpentine weed Annual herb  
Trichostema oblongum Mountain bluecurls Annual herb  
Trichostema simulatum Siskiyou bluecurls Annual herb  
Trifolium albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. dichotomum Clover Annual herb  
Trifolium albopurpureum var. olivaceum Owl's clover Annual herb  
Trifolium barbigerum Bearded clover Annual herb  
Trifolium bifidum Notch leaf clover Annual herb 2
Trifolium bifidum var. decipiens Notch leaf clover Annual herb 2
Trifolium ciliolatum Tree clover Annual herb 7
Trifolium columbinum Olive clover Annual herb  
Trifolium cyathiferum Cup clover Annual herb  
Trifolium depauperatum Dwarf sack clover Annual herb  
Trifolium depauperatum var. depauperatum Dwarf bladder clover Annual herb  
Trifolium dichotomum Branched indian clover Annual herb  
Trifolium fucatum Bull clover Annual herb 5
Trifolium gracilentum Pin point clover Annual herb 5
Trifolium macraei Macrae's clover Annual herb  
Trifolium microcephalum Small head clover Annual herb 5
Trifolium microdon Valparaiso clover Annual herb  
Trifolium obtusiflorum Creek clover Annual herb 5
Trifolium oliganthum Few flowered clover Annual herb 1
Trifolium olivaceum Olive clover Annual herb  
Trifolium variegatum Variegated clover Annual herb 1
Trifolium variegatum var. geminiflorum Small-flowered variegated clover Annual herb 1
Trifolium variegatum var. major Large variegated clover Annual herb 1
Trifolium variegatum var. variegatum Variegated clover Annual herb  
Trifolium willdenovii Tomcat clover Annual herb 8
Triodanis biflora Venus looking glass Annual herb  
Triodanis perfoliata Clasping venus looking glass Annual herb 1
Triphysaria eriantha Butter 'n' eggs Annual herb 1
Triphysaria eriantha ssp. eriantha Butter 'n' eggs Annual herb  
Triphysaria eriantha ssp. rosea Pink butter 'n' eggs Annual herb  
Triphysaria pusilla Little owl's clover Annual herb  
Triphysaria versicolor Yellow owl's clover Annual herb 1
Triphysaria versicolor ssp. faucibarbata Yellow owl's clover Annual herb  
Triphysaria versicolor ssp. versicolor Yellow owl's clover Annual herb  
Verbena menthifolia Mint leafed vervain Annual, Perennial herb  
Veronica peregrina Neckweed Annual herb  
Veronica peregrina ssp. xalapensis Speedwell Annual herb  
Vulpia microstachys Fescue Annual grass 6
Vulpia microstachys var. ciliata Eastwood fescue Annual grass  
Vulpia microstachys var. microstachys Small fescue Annual grass  
Vulpia microstachys var. pauciflora Few flowered fescue Annual grass  
Vulpia octoflora Slender fescue Annual grass 5
Vulpia octoflora var. hirtella Six weeks fescue Annual grass 1
Vulpia octoflora var. octoflora Six weeks fescue Annual grass  
Xanthium strumarium Cocklebur Annual herb  
Yabea microcarpa Hedge parsley Annual herb  
Zeltnera davyi Davy's centaury Annual herb 1
Zeltnera exaltata Cancha lagua Annual herb  
Zeltnera muehlenbergii Muehlenberg's centaury Annual herb 2
Zeltnera venusta Charming centaury Annual herb  
  Lifeform: Biennial3 plants
Descurainia incisa ssp. incisa Mountain tansy mustard Biennial herb  
Gnaphalium ramosissimum Pink everlasting Biennial herb 3
Pseudognaphalium ramosissimum Pink cudweed Biennial herb 3
  Lifeform: Perennial1807 plants
  Lifeform: Fern62 plants
Adiantum Xtracyi Fern 2
Adiantum aleuticum Five finger fern Fern 9
Adiantum capillus-veneris Venus hair Fern 14
Adiantum jordanii Adiantum Fern 4
Aspidotis californica California lace fern Fern 1
Aspidotis densa Lace fern Fern 1
Athyrium distentifolium Fern  
Athyrium distentifolium var. americanum American alpine lady fern Fern  
Athyrium filix-femina Common ladyfern Fern 19
Athyrium filix-femina ssp. cyclosorum Subarctic ladyfern Fern  
Athyrium filix-femina var. cyclosorum Western lady fern Fern 1
Azolla filiculoides Mosquito fern Fern  
Azolla mexicana Mexican mosquito fern Fern  
Azolla microphylla Mexican mosquito fern Fern  
Blechnum spicant Deer fern Fern 30
Botrychium multifidum Common grapefern Fern  
Cheilanthes gracillima Lace lip fern Fern 1
Cryptogramma acrostichoides American parsley fern Fern  
Cystopteris fragilis Brittle fern Fern 1
Dryopteris arguta Wood fern Fern 7
Dryopteris expansa Spreading wood fern Fern 4
Equisetum arvense Common horsetail Fern 6
Equisetum hyemale Scouringrush horsetail Fern 31
Equisetum hyemale ssp. affine Giant scouring rush Fern 7
Equisetum hyemale var. affine Scouringrush horsetail Fern 4
Equisetum laevigatum Smooth scouring rush Fern 2
Equisetum telmateia Giant horsetail Fern 3
Equisetum telmateia ssp. braunii Giant horsetail Fern 1
Equisetum telmateia var. braunii Giant horsetail Fern 1
Isoetes bolanderi Bolander's quillwort Fern  
Isoetes echinospora Spiny spored quillwort Fern  
Isoetes howellii Quillwort Fern  
Isoetes nuttallii Nuttall's quillwort Fern  
Lycopodiella inundata Bog club moss Fern (rhizomatous)  
Lycopodium clavatum Running pine Fern (rhizomatous)  
Myriopteris gracillima Lace lip fern Fern 1
Pellaea andromedifolia Coffee fern Fern 3
Pellaea brachyptera Sierra cliff brake Fern  
Pellaea mucronata Bird's foot fern Fern 2
Pellaea mucronata var. mucronata Bird's foot fern Fern  
Pentagramma triangularis Gold back fern Fern 3
Pentagramma triangularis ssp. semipallida Pale gold back fern Fern 3
Pentagramma triangularis ssp. triangularis Gold back fern Fern  
Polypodium californicum California polypody Fern 12
Polypodium calirhiza Licorice fern Fern 3
Polypodium glycyrrhiza Licorice fern Fern 8
Polypodium hesperium Western polypody Fern  
Polypodium scouleri Leather fern Fern 8
Polystichum californicum California sword fern Fern  
Polystichum imbricans Narrow leaved sword fern Fern 1
Polystichum imbricans ssp. curtum Cliff sword fern Fern  
Polystichum imbricans ssp. imbricans Rock sword fern Fern  
Polystichum lonchitis Holly fern Fern (rhizomatous)  
Polystichum munitum Western sword fern Fern 43
Polystichum scopulinum Mountain holly fern Fern  
Pteridium aquilinum Western brackenfern Fern 5
Pteridium aquilinum var. pubescens Western bracken fern Fern  
Selaginella oregana Oregon spike moss Fern (mosslike)  
Selaginella wallacei Wallace's spike moss Fern (mosslike)  
Struthiopteris spicant Deer fern Fern 30
Thelypteris nevadensis Sierra marsh fern Fern  
Woodwardia fimbriata Western chain fern Fern 31
  Lifeform: Shrub346 plants
Acer circinatum Vine maple Tree, Shrub 33
Acer glabrum Mountain maple Tree, Shrub 11
Acer glabrum var. glabrum Rocky mountain maple Tree, Shrub  
Acer glabrum var. greenei Greene's mountain maple Tree, Shrub  
Acer glabrum var. torreyi Torrey's mountain maple Tree, Shrub  
Adenostoma fasciculatum Chamise Tree, Shrub 15
Alnus incana Gray alder Tree, Shrub 6
Alnus incana ssp. tenuifolia Creek alder Tree, Shrub 9
Alnus rubra Red alder Tree, Shrub 29
Alnus viridis Green alder Tree, Shrub 1
Alnus viridis ssp. sinuata Sitka alder Tree, Shrub 10
Amelanchier alnifolia Service berry Shrub 31
Amelanchier alnifolia var. pumila Dwarf service berry Shrub  
Amelanchier alnifolia var. semiintegrifolia Service berry Shrub  
Amelanchier pallida Pallid service berry Shrub 3
Amelanchier utahensis Pale leaved serviceberry Shrub 10
Arctostaphylos Xcinerea Del norte manzanita Shrub  
Arctostaphylos Xknightii Hybrid manzanita Shrub  
Arctostaphylos Xmedia Hybrid manzanita Tree, Shrub 1
Arctostaphylos Xparvifolia Hybrid manzanita Shrub  
Arctostaphylos bakeri Baker's manzanita Shrub 20
Arctostaphylos bakeri ssp. bakeri Baker's manzanita Shrub  
Arctostaphylos canescens Hoary manzanita Shrub 1
Arctostaphylos canescens ssp. canescens Hoary manzanita Shrub  
Arctostaphylos canescens ssp. sonomensis Sonoma manzanita Shrub 1
Arctostaphylos columbiana Redwood manzanita Tree, Shrub 5
Arctostaphylos densiflora Vine hill manzanita Shrub 25
Arctostaphylos glandulosa Eastwood manzanita Shrub 6
Arctostaphylos glandulosa f. cushingiana Cushing's manzanita Shrub  
Arctostaphylos glandulosa ssp. cushingiana Cushing manzanita Shrub  
Arctostaphylos glandulosa ssp. glandulosa Eastwood manzanita Shrub 3
Arctostaphylos glandulosa ssp. zacaensis Zaca lake manzanita Shrub 3
Arctostaphylos hispidula Howell's manzanita Shrub  
Arctostaphylos hookeri Raven's manzanita Tree, Shrub 18
Arctostaphylos hookeri ssp. montana Mt. tamalpais manzanita Shrub  
Arctostaphylos manzanita Common manzanita Shrub 26
Arctostaphylos manzanita ssp. elegans Konocti manzanita Shrub  
Arctostaphylos manzanita ssp. glaucescens White leaf common manzanita Shrub  
Arctostaphylos manzanita ssp. manzanita Common manzanita Shrub 1
Arctostaphylos montana Mt. tamalpais manzanita Shrub  
Arctostaphylos montana ssp. montana Mt. Tamalpais manzanita Shrub  
Arctostaphylos nevadensis Pine mat manzanita Shrub 6
Arctostaphylos nevadensis ssp. knightii Knight's manzanita Shrub  
Arctostaphylos nevadensis ssp. nevadensis Pine-mat manzanita Shrub  
Arctostaphylos patula Green leaf manzanita Shrub 14
Arctostaphylos pungens Mexican manzanita Tree, Shrub 4
Arctostaphylos stanfordiana Stanford's manzanita Tree, Shrub 4
Arctostaphylos stanfordiana ssp. stanfordiana Stanford manzanita Tree, Shrub  
Arctostaphylos tomentosa Woolly leaf manzanita Shrub 7
Arctostaphylos uva-ursi Kinnikinnick Shrub 48
Arctostaphylos uva-ursi f. coactilis Southern kinnikinnick Shrub 30
Arctostaphylos viscida Whiteleaf manzanita Tree, Shrub 6
Arctostaphylos viscida ssp. viscida Smooth white leaf manzanita Tree, Shrub 2
Atriplex confertifolia Spiny saltbush Shrub 8
Baccharis pilularis Coyote brush Shrub 58
Baccharis pilularis ssp. consanguinea Coyote brush Shrub 49
Baccharis pilularis ssp. pilularis Coyote brush Shrub 5
Berberis aquifolium Mountain grape Shrub 46
Berberis aquifolium var. aquifolium Oregon grape Shrub 36
Berberis aquifolium var. repens Creeping oregon grape Shrub 30
Berberis nervosa Oregon grape Shrub 14
Berberis pinnata Shiny leaf mahonia Shrub 8
Berberis pinnata ssp. pinnata Coast barberry Shrub  
Betula occidentalis Water birch Tree, Shrub 22
Cassiope mertensiana Western moss heather Shrub 1
Ceanothus Xarcuatus Shrub  
Ceanothus arcuatus Arching ceanothus Tree, Shrub  
Ceanothus cordulatus Snow bush Shrub 7
Ceanothus cuneatus Buck brush Shrub 24
Ceanothus cuneatus var. cuneatus Buck brush Shrub 3
Ceanothus foliosus Wavy leaved ceanothus Shrub 6
Ceanothus foliosus var. foliosus Wavy leaved ceanothus Shrub  
Ceanothus foliosus var. vineatus Vine hill ceanothus Shrub 1
Ceanothus gloriosus Glory mat Shrub 28
Ceanothus gloriosus var. exaltatus Glory brush Shrub 7
Ceanothus incanus Coast whitethorn Shrub 1
Ceanothus integerrimus Deer brush Shrub 15
Ceanothus integerrimus var. integerrimus Deer brush Shrub  
Ceanothus integerrimus var. macrothyrsus Deerbrush Shrub 15
Ceanothus lemmonii Lemmon's ceanothus Shrub 3
Ceanothus leucodermis Chaparral whitethorn Shrub 8
Ceanothus oliganthus Hairy ceanothus Shrub 5
Ceanothus oliganthus var. oliganthus Hairy ceanothus Shrub 5
Ceanothus oliganthus var. sorediatus Jim brush Shrub  
Ceanothus papillosus Wartleaf ceanothus Shrub 13
Ceanothus parryi Parry ceanothus Shrub  
Ceanothus prostratus Mahala mats Shrub 10
Ceanothus pumilus Siskiyou mat Shrub  
Ceanothus sanguineus Red stem ceanothus Shrub 5
Ceanothus thyrsiflorus Blueblossom Tree, Shrub 42
Ceanothus thyrsiflorus var. repens Creeping blueblossom Tree, Shrub 31
Ceanothus thyrsiflorus var. thyrsiflorus Blue blossom Tree, Shrub 8
Ceanothus velutinus Tobacco brush, snowbrush Tree, Shrub 11
Ceanothus velutinus var. hookeri Hooker's tobacco brush Tree, Shrub 10
Ceanothus velutinus var. laevigatus Hooker's ceanothus Tree, Shrub 10
Ceanothus velutinus var. velutinus Tobacco brush Tree, Shrub 11
Cercis occidentalis Western redbud Tree, Shrub 66
Cercocarpus betuloides Birch leaf mountain mahogany Tree, Shrub 45
Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany Tree, Shrub 2
Chrysolepis chrysophylla Golden chinquapin Tree, Shrub 4
Chrysolepis chrysophylla var. chrysophylla Golden chinquapin Tree, Shrub 1
Chrysolepis chrysophylla var. minor Bush chinquapin Tree, Shrub  
Chrysolepis sempervirens Sierra chinquapin Shrub 2
Chrysothamnus nauseosus Common rabbitbrush Shrub 25
Chrysothamnus nauseosus ssp. albicaulis Rubber rabbitbrush Shrub  
Cornus glabrata Brown dogwood Tree, Shrub 10
Cornus nuttallii Mountain dogwood Shrub 25
Cornus sericea American dogwood Shrub 43
Cornus sericea ssp. occidentalis Western dogwood Shrub 9
Cornus sericea ssp. sericea Red osier dogwood Shrub 33
Corylus cornuta Beaked hazelnut Shrub 19
Corylus cornuta ssp. californica Beaked hazelnut Shrub 16
Corylus cornuta var. californica California hazelnut Shrub 9
Crataegus columbiana Columbia hawthorn Tree, Shrub 11
Crataegus douglasii Douglas' hawthorn Tree, Shrub 12
Crataegus gaylussacia Klamath hawthorn Tree, Shrub 3
Crataegus suksdorfii Klamath hawthorn Tree, Shrub 3
Diplacus aurantiacus Sticky monkeyflower Shrub 49
Empetrum nigrum Black crowberry Shrub 1
Empetrum nigrum ssp. hermaphroditum Black crowberry Shrub 1
Ericameria arborescens Golden fleece Shrub 3
Ericameria bloomeri Bloomer's goldenbrush Shrub  
Ericameria greenei Greene's goldenbush Shrub 1
Ericameria nauseosa Rubber rabbitbrush Shrub 25
Ericameria nauseosa var. speciosa Rubber rabbitbrush Shrub  
Eriodictyon californicum Yerba santa Shrub 10
Eriodictyon crassifolium Thick leaved yerba santa Shrub 8
Eriogonum nudum Naked buckwheat Shrub 16
Eriogonum nudum var. auriculatum Nude buckwheat Shrub 1
Eriogonum nudum var. nudum Nude buckwheat Shrub 1
Eriogonum nudum var. oblongifolium Oblong leaved buckwheat Shrub 1
Eriophyllum confertiflorum Yellow yarrow Shrub 23
Euonymus occidentalis Western burning bush Tree, Shrub 7
Euonymus occidentalis var. occidentalis Western burning bush Tree, Shrub 1
Frangula californica California coffeeberry Shrub 51
Frangula californica ssp. californica California coffeeberry Shrub 44
Frangula californica ssp. occidentalis Wetern california coffeeberry Shrub 2
Frangula californica ssp. tomentella Hoary coffeeberry Shrub 13
Frangula purshiana Cascara sagrada Tree, Shrub 19
Frangula purshiana ssp. purshiana Cascara sagrada Shrub 1
Frangula rubra Red buckthorn Shrub 3
Frangula rubra ssp. rubra Red buckthorn Shrub 3
Galium porrigens Climbing bedstraw Vine, Shrub  
Galium porrigens var. porrigens Graceful bedstraw Vine, Shrub  
Garrya buxifolia Boxleaf silk tassel Shrub  
Garrya elliptica Coast silk tassel Tree, Shrub 31
Garrya flavescens Ashy silk tassel Shrub 1
Garrya fremontii Fremont's silk tassel Shrub 5
Gaultheria ovatifolia Western wintergreen Shrub 1
Gaultheria shallon Salal Shrub 25
Heteromeles arbutifolia Toyon Shrub 63
Holodiscus discolor Oceanspray Shrub 42
Holodiscus discolor var. discolor Oceanspray Shrub 2
Holodiscus discolor var. glabrescens Rock spiraea Shrub 40
Holodiscus microphyllus Oceanspray Shrub 40
Holodiscus microphyllus var. glabrescens Rock spiraea Shrub 40
Holodiscus microphyllus var. microphyllus Little leaf creambush Shrub 40
Isocoma menziesii White flowered goldenbush Shrub 15
Isocoma menziesii var. vernonioides Green leaved dune goldenbush Shrub  
Juniperus communis Common juniper Shrub 14
Juniperus communis var. depressa Common juniper Shrub 2
Juniperus communis var. jackii Common juniper Shrub 2
Juniperus communis var. saxatilis Common juniper Shrub 2
Kalmia polifolia Mountain laurel Shrub 2
Kalmia polifolia ssp. microphylla Bog laurel Shrub 2
Keckiella breviflora Gaping keckiella Shrub 4
Keckiella corymbosa Red beardtongue Shrub 2
Keckiella lemmonii Lemmon's keckiella Shrub  
Ledum glandulosum Western labrador tea Shrub 1
Lithocarpus densiflorus Tanbark oak Tree, Shrub 14
Lithocarpus densiflorus var. densiflorus Tanoak Tree, Shrub 3
Lithocarpus densiflorus var. echinoides Tanoak shrub Tree, Shrub 4
Lonicera ciliosa Orange honeysuckle Vine, Shrub 10
Lonicera conjugialis Purpleflower honeysuckle Shrub 3
Lonicera hispidula Pink honeysuckle Vine, Shrub 33
Lonicera hispidula var. vacillans Hairy honeysuckle Vine, Shrub 33
Lonicera interrupta Chaparral honeysuckle Vine, Shrub 5
Lonicera involucrata Coast twinberry Shrub 42
Lonicera involucrata var. ledebourii Coast twinberry Shrub 2
Lupinus albifrons Silver bush lupine Shrub 34
Lupinus albifrons var. albifrons Silver bush lupine Shrub 5
Lupinus albifrons var. collinus Silver bush lupine Shrub 8
Lupinus arboreus Coastal bush lupine Shrub 27
Lupinus chamissonis Beach blue lupine Shrub 16
Lupinus littoralis var. variicolor Shrub 5
Lupinus longifolius Long leaf bush lupine Shrub 5
Lupinus variicolor Varied lupine Shrub 5
Malus fusca Oregon crab apple Tree, Shrub 13
Menziesia ferruginea Mock azalea Shrub 3
Mimulus aurantiacus Sticky monkeyflower Shrub 55
Mimulus aurantiacus var. aurantiacus Sticky monkeyflower Shrub 4
Mimulus puniceus Red bush monkeyflower Shrub 52
Monardella follettii Follett's monardella Shrub 1
Morella californica California wax myrtle Shrub 54
Myrica californica Wax myrtle Shrub 54
Notholithocarpus densiflorus Tanoak Tree, Shrub 12
Notholithocarpus densiflorus var. densiflorus Tanoak Tree, Shrub 3
Notholithocarpus densiflorus var. echinoides Tanoak shrub Tree, Shrub 4
Oemleria cerasiformis Oso berry Shrub 18
Paxistima myrsinites Oregon boxwood Shrub 5
Philadelphus lewisii Wild mock orange Shrub 47
Phoradendron juniperinum Mistletoe Shrub (parasitic)  
Phoradendron leucarpum American mistletoe Shrub (parasitic)  
Phoradendron leucarpum ssp. macrophyllum Big leaf mistletoe Shrub (parasitic)  
Phoradendron leucarpum ssp. tomentosum Mistletoe Shrub (parasitic)  
Phoradendron libocedri Incense cedar mistletoe Shrub (parasitic)  
Phoradendron serotinum Mistletoe Shrub (parasitic)  
Phoradendron serotinum ssp. macrophyllum Big leaf mistletoe Shrub (parasitic)  
Phoradendron serotinum ssp. tomentosum Pacific mistletoe Shrub (parasitic)  
Phoradendron villosum Hairy mistletoe Shrub (parasitic)  
Phyllodoce empetriformis Klamath mountain heather Shrub 4
Physocarpus capitatus Ninebark Shrub 40
Prunus emarginata Bitter cherry Tree, Shrub 15
Prunus subcordata Sierra plum Tree, Shrub 4
Prunus virginiana Chokecherry Tree, Shrub 29
Prunus virginiana var. demissa Western choke cherry Tree, Shrub 10
Prunus virginiana var. melanocarpa Black chokecherry Tree, Shrub 8
Quercus dumosa Scrub oak Shrub 10
Quercus durata Leather oak Shrub 9
Quercus sadleriana Sadler oak Shrub 4
Quercus vacciniifolia Huckleberry oak Shrub 5
Quercus wislizeni Interior live oak Tree, Shrub 23
Quercus wislizeni var. wislizeni Interior live oak Tree, Shrub 3
Rhamnus alnifolia Alder leaved coffeeberry Shrub 1
Rhamnus californica Coffee berry Shrub 61
Rhamnus californica ssp. californica California coffeeberry Shrub 10
Rhamnus californica ssp. occidentalis Wetern california coffeeberry Shrub 2
Rhamnus crocea Redberry Shrub 18
Rhamnus ilicifolia Evergreen buckthorn Shrub 17
Rhamnus purshiana Cascara sagrada Tree, Shrub 17
Rhamnus rubra Sierra coffeeberry Shrub 3
Rhamnus tomentella Hoary coffeeberry Shrub 10
Rhamnus tomentella ssp. tomentella Chaparral coffee berry Shrub 6
Rhododendron columbianum Western labrador tea Shrub 1
Rhododendron macrophyllum California rose bay Shrub 9
Rhododendron occidentale Western azalea Tree, Shrub 22
Rhododendron occidentale var. paludosum Western azalea Tree, Shrub  
Rhus aromatica Fragrant sumac Shrub 32
Rhus trilobata Skunkbrush Shrub 32
Rhus trilobata var. simplicifolia Single leaf skunkbrush Shrub 7
Ribes binominatum Trailing gooseberry Shrub  
Ribes bracteosum Stink currant Shrub 6
Ribes cereum Wax currant Shrub 16
Ribes divaricatum Spreading gooseberry Shrub 9
Ribes divaricatum var. pubiflorum Spreading gooseberry Shrub 2
Ribes inerme White stemmed gooseberry Shrub 2
Ribes inerme var. klamathense Klamath gooseberry Shrub  
Ribes lacustre Swamp currant Shrub 6
Ribes laxiflorum Trailing black currant Shrub 1
Ribes lobbii Gummy gooseberry Shrub 2
Ribes malvaceum Chaparral currant Shrub 23
Ribes marshallii Marshall's gooseberry Shrub  
Ribes menziesii Gooseberry Shrub 6
Ribes menziesii var. hystrix Canyon gooseberry Shrub 1
Ribes menziesii var. menziesii Canyon gooseberry Shrub 1
Ribes nevadense Mountain pink currant Shrub 11
Ribes roezlii Sierra gooseberry Shrub 10
Ribes roezlii var. amictum Sierra gooseberry Shrub  
Ribes roezlii var. cruentum Spiny fruited gooseberry Shrub 3
Ribes roezlii var. roezlii Sierra gooseberry Shrub 3
Ribes sanguineum Flowering currant Shrub 53
Ribes sanguineum var. glutinosum Flowering currant Shrub 25
Ribes sanguineum var. sanguineum Red flowering currant Shrub 7
Ribes velutinum Desert gooseberry Shrub  
Ribes victoris Victor's gooseberry Shrub  
Ribes viscosissimum Sticky currant Shrub  
Ribes viscosissimum var. hallii Hall's sticky currant Shrub  
Rosa californica California wild rose Shrub 52
Rosa gymnocarpa Wood rose Shrub 21
Rosa gymnocarpa var. gymnocarpa Wood rose Shrub 2
Rosa gymnocarpa var. serpentina Gasquet rose Shrub  
Rosa nutkana Nootka rose Shrub 17
Rosa nutkana ssp. macdougalii Nootka rose Shrub  
Rosa nutkana ssp. nutkana Nootka rose Shrub  
Rosa nutkana var. muriculata Nootka rose Shrub  
Rosa nutkana var. nutkana Nootka rose Shrub  
Rosa nutkana var. setosa Nootka rose Shrub  
Rosa pinetorum Pine rose Shrub 1
Rosa pisocarpa Cluster rose Shrub 10
Rosa pisocarpa ssp. pisocarpa Cluster or pea rose Shrub  
Rosa spithamea Sonoma rose Shrub 1
Rubus glaucifolius Wax leaf raspberry Shrub  
Rubus lasiococcus Rough fruit berry Vine, Shrub  
Rubus leucodermis White bark raspberry Shrub 8
Rubus leucodermis var. leucodermis Whitebark raspberry Shrub 8
Rubus parviflorus Thimbleberry Vine, Shrub 38
Rubus parviflorus var. parviflorus Thimbleberry Vine, Shrub 1
Rubus parviflorus var. velutinus Thimbleberry Vine, Shrub 38
Rubus spectabilis Salmon berry Shrub 22
Rubus spectabilis var. franciscanus Salmon berry Shrub 22
Rubus ursinus California blackberry Vine, Shrub 37
Salix breweri Serpentine willow Shrub 1
Salix eastwoodiae Mountain willow Shrub 1
Salix exigua Narrowleaf willow Tree, Shrub 26
Salix exigua var. exigua Narrowleaf willow Tree, Shrub 2
Salix exigua var. hindsiana Sandbar willow Tree, Shrub 25
Salix hindsiana Sandbar willow Tree, Shrub 25
Salix hookeriana Coastal willow Tree, Shrub 10
Salix jepsonii Jepson's willow Shrub  
Salix lasiandra var. caudata Shining willow Shrub  
Salix lasiolepis Arroyo willow Tree, Shrub 23
Salix lasiolepis var. bigelovii Arroyo willow Tree, Shrub 23
Salix lucida Shining willow Tree, Shrub 19
Salix lucida ssp. caudata Shining willow Shrub  
Salix melanopsis Dusky willow Tree, Shrub 4
Salix scouleriana Scouler willow Tree, Shrub 17
Salix sessilifolia Northern sandbar willow Shrub 4
Salix sitchensis Coulter willow Tree, Shrub 14
Salix tracyi Tracy's willow Tree, Shrub  
Salvia mellifera Black sage Shrub 45
Sambucus mexicana Elderberry Tree, Shrub 40
Sambucus nigra Black elderberry Shrub 13
Sambucus nigra ssp. caerulea Blue elderberry Shrub 60
Sambucus racemosa Red elderberry Shrub 31
Sambucus racemosa var. microbotrys Red elderberry Shrub 3
Sambucus racemosa var. racemosa Red elderberry Shrub 5
Senecio flaccidus Shrubby ragwort Shrub 6
Solanum parishii Parish's purple nightshade Shrub 3
Solanum umbelliferum Blue witch Shrub 10
Sorbus californica California mountain ash Shrub 1
Sorbus scopulina Mountain ash Shrub 7
Sorbus scopulina var. cascadensis Cascade mountain ash Shrub 7
Sorbus scopulina var. scopulina Mountain ash Shrub  
Sorbus sitchensis Western mountain ash Tree, Shrub 5
Sorbus sitchensis var. sitchensis Sitka mountain ash Tree, Shrub  
Spiraea densiflora Dense flowered spiraea Shrub 17
Spiraea densiflora ssp. splendens Mountain spirea Shrub 5
Spiraea douglasii Douglas spiraea Shrub 26
Spiraea splendens Rose meadowsweet Shrub 17
Symphoricarpos acutus Creeping snowberry Shrub 17
Symphoricarpos albus Common snowberry Shrub 42
Symphoricarpos albus var. laevigatus Snowberry Shrub 12
Symphoricarpos hesperius Creeping snowberry Shrub 17
Symphoricarpos mollis Snowberry Shrub 18
Toxicodendron diversilobum Poison oak Vine, Shrub 7
Vaccinium cespitosum Dwarf bilberry Shrub 2
Vaccinium membranaceum Thin leaf huckleberry Shrub 5
Vaccinium ovatum Evergreen huckleberry Shrub 39
Vaccinium parvifolium Red huckleberry Shrub 11
Vaccinium scoparium Little leaf huckleberry Shrub 1
Vaccinium uliginosum Blueberry Shrub 2
Vaccinium uliginosum ssp. occidentale Western blueberry Shrub 2
Vaccinium uliginosum ssp. uliginosum European blueberry Shrub  
Viburnum ellipticum Common viburnum Shrub 5
Vitis californica California wild grape Vine, Shrub 39
Whipplea modesta Modesty Vine, Shrub 7
  Lifeform: Tree67 plants
Abies Xshastensis Shasta red fir Tree  
Abies concolor White fir Tree 22
Abies concolor var. lowiana California white fir Tree  
Abies grandis Grand fir Tree 16
Abies magnifica Magnificant silver fir Tree 3
Abies magnifica var. magnifica California red fir Tree  
Abies magnifica var. shastensis Shasta red fir Tree  
Abies procera Noble fir Tree 14
Acer macrophyllum Bigleaf maple Tree 52
Acer negundo Boxelder Tree 30
Acer negundo var. californicum California box elder Tree 30
Aesculus californica Buckeye Tree 46
Alnus rhombifolia White alder Tree 38
Arbutus menziesii Madrono Tree 36
Callitropsis macrocarpa Monterey cypress Tree 5
Callitropsis nootkatensis Alaska cedar Tree 10
Calocedrus decurrens Incense cedar Tree 40
Chamaecyparis lawsoniana Port orford cedar Tree 14
Cornus sessilis Western cornelian cherry Tree 6
Cupressus lawsoniana Port orford cedar Tree 14
Cupressus macrocarpa Monterey cypress Tree 24
Cupressus nootkatensis Alaska cedar Tree 1
Fraxinus latifolia Oregon ash Tree 29
Hesperocyparis macrocarpa Monterey cypress Tree 24
Juniperus occidentalis Western juniper Tree 2
Picea sitchensis Sitka spruce Tree 18
Pinus attenuata Knobcone pine Tree 6
Pinus contorta Lodgepole pine Tree 30
Pinus contorta ssp. bolanderi Bolander's beach pine Tree 1
Pinus contorta ssp. contorta Shore pine Tree 12
Pinus jeffreyi Jeffrey pine Tree 17
Pinus lambertiana Sugar pine Tree 13
Pinus monticola Western white pine Tree 10
Pinus muricata Bishop pine Tree 12
Pinus ponderosa Yellow pine Tree 29
Pinus ponderosa var. ponderosa North plateau ponderosa pine Tree 2
Pinus radiata Monterey pine Tree 8
Pinus sabiniana Gray pine Tree 28
Platanus racemosa California sycamore Tree 36
Populus balsamifera ssp. trichocarpa Black cottonwood Tree 27
Populus fremontii Fremont cottonwood Tree 32
Populus fremontii ssp. fremontii Cottonwood Tree 4
Populus trichocarpa Black cottonwood Tree 27
Pseudotsuga menziesii Douglas fir Tree 31
Pseudotsuga menziesii var. menziesii Douglas fir Tree 4
Quercus Xmorehus Oracle oak Tree 1
Quercus agrifolia Coast live oak Tree 52
Quercus chrysolepis Gold cup live oak Tree 24
Quercus chrysolepis var. nana Canyon live oak Tree 25
Quercus douglasii Blue oak Tree 26
Quercus garryana Oregon oak Tree 25
Quercus garryana var. breweri Oregon oak Tree 2
Quercus garryana var. garryana Oregon oak Tree 1
Quercus kelloggii California black oak Tree 24
Quercus parvula Santa cruz island oak Tree 1
Quercus parvula var. shrevei Shreve's oak Tree 1
Salix laevigata Polished willow Tree 17
Salix lasiandra Pacific willow Tree 20
Salix lasiandra var. lasiandra Pacific willow Tree 6
Salix lucida ssp. lasiandra Shining willow Tree 6
Sequoia sempervirens Coast redwood Tree 33
Sequoiadendron giganteum Redwood Tree 19
Taxus brevifolia California yew Tree 11
Thuja plicata Western red cedar Tree 22
Tsuga heterophylla Western hemlock Tree 14
Tsuga mertensiana Patton spruce Tree 13
Umbellularia californica California bay Tree 40
 
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive.
NB: found in Humboldt County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.