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Criteria:   found in Lassen County  •   is native  •  group by lifeform
2717  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual713 plants
Abronia turbinata Trans montane sand verbena Annual herb  
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 maritimus Coastal lotus Annual herb 2
Agoseris heterophylla Mountain dandelion Annual herb  
Agoseris heterophylla var. heterophylla Annual agoseris Annual herb  
Agrostis microphylla Little leaf bentgrass Annual grass  
Aliciella leptomeria Sand aliciella Annual herb  
Aliciella lottiae Lott's gilia Annual herb  
Aliciella micromeria Dainty 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  
Allophyllum integrifolium White allophyllum Annual herb  
Alopecurus carolinianus Carolina foxtail Annual grass  
Alopecurus saccatus Foxtail Annual grass  
Amaranthus blitoides Prostrate pigweed Annual herb  
Amaranthus californicus California amaranth Annual herb  
Amaranthus powellii Powell's amaranth Annual herb  
Ambrosia acanthicarpa Annual burrweed Annual herb 3
Amsinckia intermedia Common fiddleneck Annual herb 1
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 tessellata Devil's lettuce Annual herb 4
Amsinckia tessellata var. tessellata Devil's lettuce Annual herb 1
Ancistrocarphus filagineus Woolly fishhooks Annual herb  
Anisocoma acaulis Scale bud Annual herb 2
Aphyllon corymbosum Flat topped broom rape Annual herb  
Aphyllon purpureum Naked broom rape Annual herb  
Aphyllon vallicolum Valley broom rape Annual herb  
Argemone munita Prickly poppy Annual, Perennial herb 4
Aster frondosus Short rayed alkali aster Annual herb  
Astragalus geyeri Geyer's milkvetch Annual herb  
Astragalus geyeri var. geyeri Geyer's milk vetch Annual herb  
Astragalus lentiginosus Freckled milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. albifolius White leaved milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. chartaceus Broadleaf milkvetch Annual, Perennial herb  
Astragalus lentiginosus var. floribundus Floriferous milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. lentiginosus Freckled milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. platyphyllidius Volcanic milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. salinus Sagebrush milk vetch Annual, Perennial herb  
Athysanus pusillus Dwarf athysanus Annual herb  
Atriplex argentea Silverscale saltbush Annual herb 2
Atriplex argentea var. expansa Mojave silverscale Annual herb 2
Atriplex argentea var. hillmanii Hillman's silverscale Annual herb  
Atriplex argentea var. mohavensis Mojave silverscale Annual herb 2
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  
Atriplex truncata Wedgescale Annual herb  
Beckmannia syzigachne American sloughgrass Annual grass 5
Bergia texana Texas bergia Annual herb  
Blepharipappus scaber Blepharipappus Annual herb  
Bromus orcuttianus Orcutt's brome grass Annual grass 1
Calandrinia ciliata Redmaids Annual herb 7
Calandrinia menziesii Calandrinia Annual herb 7
Callitriche palustris Vernal water-starwort Annual herb  
Callitriche verna Water starwort Annual herb  
Calyptridium umbellatum Pussy toes Annual, Perennial herb 3
Calyptridium umbellatum var. umbellatum Mt. hood pussypaws Annual, Perennial herb 3
Camissonia andina Plateau evening primrose Annual herb  
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 claviformis Brown eyed primrose Annual herb  
Camissonia claviformis ssp. cruciformis Cross flowered clavate fruited primrose Annual herb  
Camissonia claviformis ssp. integrior Clavate fruited primrose Annual herb  
Camissonia contorta Contorted sun cup Annual herb  
Camissonia graciliflora Hill sun cup Annual herb  
Camissonia minor Nelson's evening primrose Annual herb  
Camissonia parvula Tiny sun cup Annual herb  
Camissonia pubens Hairy sun cup Annual herb  
Camissonia pusilla Little wiry sun cup Annual herb  
Cardamine oligosperma Idaho bittercress Annual, Perennial herb  
Castilleja campestris Yellow owl's clover Annual herb  
Castilleja campestris ssp. campestris Yellow owl's clover Annual herb  
Castilleja lacera Foothill owl's clover Annual herb  
Castilleja minor Little paintbrush Annual herb 1
Castilleja minor ssp. minor Lesser paintbrush Annual herb 2
Castilleja tenuis Hairy owl's clover Annual herb  
Cenchrus spinifex Coastal sandbur Annual grass  
Centaurium exaltatum Cancha lagua Annual herb  
Centaurium muehlenbergii Monterey centaury Annual herb 2
Centromadia pungens Common tarweed Annual herb 1
Centromadia pungens ssp. maritima Common tarweed Annual herb  
Centromadia pungens ssp. pungens Common tarweed Annual herb  
Centromadia pungens ssp. septentrionalis Common tarweed Annual herb  
Chaenactis douglasii Chaenactis Annual, Perennial herb  
Chaenactis douglasii var. douglasii Dusty pincushions Annual, Perennial herb  
Chaenactis glabriuscula Common yellow chaenactis Annual herb 3
Chaenactis glabriuscula var. heterocarpha Variable fruited yellow chaenactis Annual herb  
Chaenactis stevioides Esteve pincushion Annual herb 2
Chaenactis xantiana Xantus' chaenactis Annual herb 1
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 berlandieri Pit seed goosefoot Annual herb  
Chenopodium berlandieri var. sinuatum Pitseed goosefoot Annual herb  
Chenopodium berlandieri var. zschackei Pit seed goosefoot Annual herb  
Chenopodium desiccatum Dry goosefoot Annual herb  
Chenopodium fremontii Fremont's goosefoot Annual herb  
Chenopodium glaucum Oak leaved goosefoot Annual herb  
Chenopodium hians Gaping goosefoot Annual herb  
Chenopodium incognitum Masked goosefoot Annual herb  
Chenopodium leptophyllum Thin leaved goosefoot Annual herb  
Chenopodium nitens Shiny seed goosefoot Annual herb  
Chenopodium pratericola Meadow goosefoot Annual herb  
Chenopodium rubrum Red goosefoot Annual herb  
Chenopodium rubrum var. rubrum Red goosefoot Annual herb  
Chenopodium simplex Large seeded goosefoot Annual herb  
Chloropyron maritimum Salt marsh bird's beak Annual herb  
Chloropyron maritimum ssp. canescens Salt marsh bird's beak Annual herb  
Chorizanthe polygonoides Knotweed spineflower Annual herb  
Chorizanthe polygonoides var. polygonoides Knotweed spineflower Annual herb  
Chorizanthe watsonii Watson's spineflower Annual herb  
Chylismia claviformis Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. cruciformis Cruciform evening-primrose Annual, Perennial herb  
Chylismia claviformis ssp. funerea Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. integrior Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. lancifolia Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. peirsonii Peirson's clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. yumae Yuma clavate fruited primrose Annual, Perennial herb  
Clarkia gracilis Graceful clarkia Annual herb 3
Clarkia gracilis ssp. albicaulis White stemmed clarkia Annual herb 1
Clarkia gracilis ssp. gracilis Graceful clarkia Annual herb  
Clarkia lassenensis Lassen 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 2
Clarkia stellata Lake almanor clarkia Annual herb  
Claytonia exigua ssp. glauca Blue leaved spring beauty Annual herb  
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. 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  
Cleome platycarpa Golden bee plant Annual herb  
Cleomella hillmanii Hillman's stinkweed Annual herb  
Cleomella hillmanii var. hillmanii Hillman's cleomella Annual herb  
Cleomella parviflora Slender cleomella Annual herb  
Cleomella plocasperma Twisted cleomella Annual herb  
Collinsia childii Child's collinsia Annual herb  
Collinsia grandiflora Large flowered collinsia Annual herb 2
Collinsia greenei Greene's collinsia Annual herb  
Collinsia linearis Narrow leaf collinsia Annual herb  
Collinsia parviflora Few flowered blue eyed mary Annual herb 1
Collinsia sparsiflora Few flowered collinsia Annual herb  
Collinsia sparsiflora var. sparsiflora Few flowered collinsia Annual herb  
Collinsia torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. latifolia Broad leaved collinsia Annual herb  
Collinsia torreyi var. torreyi Torrey's collinsia Annual herb  
Collinsia torreyi var. wrightii Wright's collinsia 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 kingii King's bird's beak Annual herb  
Cordylanthus kingii ssp. helleri Heller's bird's beak Annual herb  
Cordylanthus maritimus Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. canescens Salt marsh bird's beak Annual herb  
Cordylanthus pilosus Hairy bird's beak Annual herb  
Cordylanthus ramosus Bushy bird's beak Annual herb  
Cordylanthus tenuis Slender bird's beak Annual herb  
Cordylanthus tenuis ssp. tenuis Slender bird's beak Annual herb  
Corydalis aurea Golden corydalis Annual, Perennial herb 1
Crassula aquatica Aquatic pygmy weed Annual herb  
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 ambigua Wilkes' cryptantha Annual herb  
Cryptantha circumscissa Western forget me not Annual herb  
Cryptantha circumscissa var. circumscissa Cushion cryptantha Annual herb  
Cryptantha echinella Prickly cryptantha Annual herb  
Cryptantha flaccida Beaked cryptantha Annual herb  
Cryptantha glomeriflora Truckee cryptantha Annual herb  
Cryptantha gracilis Slender cryptantha Annual herb  
Cryptantha intermedia Common cryptanth Annual herb  
Cryptantha intermedia var. hendersonii Henderson's cryptantha Annual herb  
Cryptantha intermedia var. intermedia Common cryptantha Annual herb  
Cryptantha micrantha Purple root cryptantha Annual herb  
Cryptantha micrantha var. micrantha Red-root cryptantha Annual herb  
Cryptantha muricata Prickly cryptantha Annual herb 2
Cryptantha pterocarya Winged nut forget me not Annual herb  
Cryptantha pterocarya var. pterocarya Wingnut cryptantha Annual herb  
Cryptantha scoparia Gray cryptantha Annual herb  
Cryptantha simulans Pine cryptantha Annual herb  
Cryptantha torreyana Torrey's cryptantha Annual herb  
Cryptantha torreyana var. torreyana Torrey's cryptantha Annual herb  
Cryptantha watsonii Watson's cryptantha Annual herb  
Cuscuta californica California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. breviflora California dodder Annual herb, Vine (parasitic)  
Cuscuta campestris Field dodder Annual herb, Vine (parasitic)  
Cuscuta occidentalis California dodder Annual herb, Vine (parasitic)  
Cyperus squarrosus Awned cyperus Annual grass  
Deinandra lobbii Threeray 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 longipedicellata Annual herb  
Descurainia nelsonii Annual herb  
Descurainia paradisa Great basin tansy mustard Annual herb  
Descurainia paradisa ssp. paradisa Paradise tansymustard Annual herb  
Descurainia pinnata Yellow tansy mustard Annual herb  
Descurainia pinnata ssp. brachycarpa Western tansymustard Annual herb  
Descurainia pinnata ssp. glabra Smooth western tansy mustard Annual herb  
Descurainia pinnata ssp. halictorum Alkali western tansy mustard Annual herb  
Descurainia pinnata ssp. intermedia Intermediate western tansy mustard Annual herb  
Dimeresia howellii Doublet Annual herb  
Diplacus jepsonii Jepson's monkeyflower Annual herb  
Diplacus layneae Layne's monkeyflower Annual herb  
Diplacus leptaleus Least flowered monkey flower Annual herb  
Diplacus mephiticus Skunky monkeyflower Annual herb  
Diplacus nanus Dwarf monkey flower Annual herb  
Diplacus pygmaeus Egg Lake monkeyflower Annual herb  
Diplacus torreyi Torrey's monkeyflower Annual herb  
Diplacus tricolor Tricolor monkeyflower Annual herb  
Diplacus viscidus Viscid monkeyflower Annual herb  
Downingia bacigalupii Bach's downingia Annual herb  
Downingia bicornuta Bristled downingia Annual herb  
Downingia bicornuta var. bicornuta Bristled downingia Annual herb  
Downingia concolor Spotted throat downingia Annual herb  
Downingia concolor var. 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 insignis Harlequin downingia Annual herb  
Downingia laeta Great basin downingia Annual herb  
Downingia montana Sierra downingia Annual herb  
Downingia yina Cascade downingia Annual herb  
Draba albertina Alberta whitlow grass Annual, Perennial herb  
Draba stenoloba var. ramosa Alaska draba Annual, Perennial herb  
Draba verna var. aestivalis Small bruited spring draba Annual herb  
Eatonella nivea White eatonella Annual herb  
Elatine californica California waterwort Annual, Perennial herb  
Elatine chilensis Chilean waterwort Annual, Perennial herb (aquatic)  
Elatine gracilis Sierra waterwort Annual, Perennial herb (aquatic)  
Elatine rubella Southwestern waterwort Annual herb  
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 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
Eremothera boothii Booth's sun cup Annual herb  
Eremothera boothii ssp. alyssoides Pine creek evening-primrose Annual herb  
Eremothera minor Nelson's evening-primrose Annual herb  
Eriastrum signatum Maroon-spotted Woollystar Annual herb  
Eriastrum sparsiflorum Great basin eriastrum Annual herb  
Eriastrum wilcoxii Wilcox's eriastrum Annual herb  
Erigeron canadensis Canada horseweed Annual herb  
Eriogonum baileyi Bailey buckwheat Annual herb  
Eriogonum baileyi var. baileyi Bailey's buckwheat Annual herb  
Eriogonum baileyi var. praebens Bailey's buckwheat Annual herb  
Eriogonum cernuum Nodding buckwheat Annual herb  
Eriogonum collinum Hill buckwheat Annual herb  
Eriogonum gracile Slender buckwheat Annual herb 3
Eriogonum maculatum Angle stermed buckwheat Annual herb  
Eriogonum nidularium Whisk broom Annual herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Eriogonum nutans Dugway buckwheat Annual herb  
Eriogonum nutans var. nutans Nodding buckwheat Annual herb  
Eriogonum pusillum Yellow turban Annual herb  
Eriogonum reniforme Kidney leaf buckwheat Annual herb  
Eriogonum spergulinum Wild buckwheat Annual herb  
Eriogonum spergulinum var. reddingianum Spurry buckwheat Annual herb  
Eriogonum vimineum Wicker stemmed eriogonum Annual herb 1
Eryngium pinnatisectum Tuolumne button celery Annual, Perennial herb  
Erythranthe arvensis Annual herb  
Erythranthe breviflora Short flowered monkeyflower Annual herb  
Erythranthe breweri Brewer's monkeyflower Annual herb  
Erythranthe erubescens Annual herb  
Erythranthe floribunda Many flowered monkey flower Annual herb 1
Erythranthe guttata Yellow monkey flower Annual, Perennial herb (rhizomatous) 36
Erythranthe inflatula ephemeral monkeyflower Annual herb  
Erythranthe latidens Broad toothed monkeyflower Annual herb  
Erythranthe microphylla Small leaved monkeyflower Annual herb  
Erythranthe pulsiferae Candelabrum monkey flower Annual herb  
Erythranthe rubella Red stemmed himulus Annual herb  
Erythranthe suksdorfii Suksdorf's monkeyflower Annual herb  
Eschscholzia caespitosa Tufted eschscholzia Annual herb 15
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
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. diffusum Diffuse gayophytum 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  
Gentianella amarella Autumn dwarf gentian Annual herb  
Gentianella amarella ssp. acuta Autumn dwarf gentian Annual herb  
Gentianopsis simplex Hiker's fringed gentian Annual herb  
Gilia brecciarum Small gilia Annual herb  
Gilia brecciarum ssp. brecciarum Nevada gilia Annual herb  
Gilia capillaris Smooth leaved gilia Annual herb  
Gilia capitata Blue field gilia Annual herb 19
Gilia capitata ssp. mediomontana Blue field gilia Annual herb  
Gilia inconspicua Shy 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 malior Scrub gilia Annual herb  
Gilia micromeria Dainty gilia Annual herb  
Gilia modocensis Modoc gilia Annual herb  
Gilia ochroleuca Volcanic gilia Annual herb  
Gilia ophthalmoides Eyed gilia Annual herb  
Gilia salticola Granite gilia Annual herb  
Gilia sinistra Clockwise gilia Annual herb  
Gilia sinistra ssp. sinistra Clockwise gilia Annual herb  
Gilia sinuata Cinder gilia Annual herb  
Gilia tetrabreccia Mt. pinos gilia Annual herb  
Githopsis pulchella Largeflower bluecup Annual herb  
Githopsis pulchella ssp. campestris Sierra bluecup Annual herb  
Glyptopleura marginata Keysia Annual herb  
Gnaphalium palustre Lowland cudweed Annual herb  
Gratiola ebracteata Common hedge hyssop Annual herb  
Gratiola heterosepala Boggs lake hedge hyssop Annual herb  
Gratiola neglecta Clammy hedge hyssop Annual herb  
Gymnosteris parvula Small flowered gymnosteris Annual herb  
Helianthus annuus Hairy leaved sunflower Annual herb 16
Helianthus bolanderi Bolander's sunflower Annual, Perennial herb 2
Hemizonella minima Opposite leaved tarweed Annual herb  
Hemizonia lobbii Three raped tarweed Annual herb  
Hemizonia pungens Common spikeweed Annual herb 1
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  
Hordeum arizonicum Arizona foxtail Annual grass  
Hypericum anagalloides Creeping St. John's wort Annual, Perennial herb 1
Idahoa scapigera Oldstem idahoa Annual herb  
Ipomopsis depressa Low ipomopsis Annual herb  
Ipomopsis polycladon Branching gilia Annual herb  
Juncus bryoides Moss rush Annual grass  
Juncus bufonius Common toad rush Annual grass 6
Juncus bufonius var. bufonius Toad rush Annual grass  
Juncus bufonius var. congestus Clustered toad rush Annual grass 1
Juncus capillaris Slender stemmed dwarf rush Annual grass  
Juncus hemiendytus Dwarf rush Annual grass  
Juncus hemiendytus var. abjectus Center basin rush Annual grass  
Juncus hemiendytus var. hemiendytus Vernal pool rush Annual grass  
Juncus luciensis Santa lucia rush Annual grass  
Juncus tiehmii Tiehm's rush Annual grass  
Juncus uncialis Inch high dwarf rush Annual grass  
Lagophylla ramosissima Common hareleaf Annual herb  
Lagophylla ramosissima ssp. ramosissima Common hareleaf Annual herb  
Lappula redowskii Stickweed Annual herb  
Lappula redowskii var. cupulata Cupped redowski's stickseed Annual herb  
Lasthenia glaberrima Smooth goldfields Annual herb  
Layia glandulosa White layia Annual herb 5
Lepidium acutidens Net pepper grass Annual, Perennial herb  
Lepidium dictyotum Net pepper grass Annual herb  
Lepidium dictyotum var. acutidens Net pepper grass Annual herb  
Lepidium dictyotum var. dictyotum Net pepper grass Annual herb  
Lepidium ruderale Roadside pepperweed Annual herb 1
Lepidium virginicum Wild pepper grass Annual herb 1
Lepidium virginicum ssp. menziesii Robinson's pepper grass Annual herb  
Lepidium virginicum var. medium Wild pepper grass Annual herb  
Leptochloa fascicularis Sprangletop Annual grass  
Leptochloa fusca Sprangletop Annual grass  
Leptochloa fusca ssp. fascicularis Bearded sprangletop Annual grass  
Leptosiphon bolanderi Bolander's linanthus Annual herb  
Leptosiphon ciliatus Whiskerbrush Annual herb 1
Leptosiphon ciliatus ssp. ciliatus Whiskerbrush Annual herb  
Leptosiphon harknessii Harkness' flaxflower Annual herb  
Leptosiphon liniflorus Narrowflower flaxflower Annual herb  
Leptosiphon septentrionalis Northern linanthus Annual herb  
Lilaea scilloides Flowering quillwort Annual herb (aquatic)  
Limnanthes floccosa Woolly meadowfoam Annual herb  
Limnanthes floccosa ssp. floccosa Woolly meadowfoam Annual herb  
Limosella acaulis Stemless mudwort Annual herb  
Limosella aquatica Northern mudwort Annual herb (aquatic)  
Linanthus bolanderi Bolander's linanthus Annual herb  
Linanthus ciliatus Whisker brush linanthus Annual herb 1
Linanthus harknessii Harkness linanthus Annual herb  
Linanthus liniflorus Flax flowered linanthus Annual herb  
Linanthus septentrionalis Northern linanthus Annual herb  
Loeflingia squarrosa Spreading loeflingia Annual herb  
Loeflingia squarrosa var. artemisiarum Sagebrush loeflingia Annual herb  
Loeseliastrum depressum Depressed ipomopsis Annual herb  
Lotus denticulatus Toothed lotus Annual herb  
Lotus humistratus Short podded lotus Annual herb  
Lotus purshianus Bird's foot trefoil Annual herb 6
Lotus purshianus var. purshianus Spanish lotus Annual herb 1
Lotus salsuginosus Coastal lotus Annual herb 2
Lotus unifoliolatus American bird's foot trefoil Annual herb 2
Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil Annual herb  
Lupinus bicolor Lupine Annual, Perennial herb 16
Lupinus brevicaulis Short stemmed blue lupine Annual herb  
Lupinus microcarpus Chick lupine Annual herb 9
Lupinus microcarpus var. densiflorus Chick lupine Annual herb 13
Lupinus microcarpus var. microcarpus Chick lupine Annual herb 3
Lupinus pusillus Rusty lupine Annual herb  
Lupinus pusillus var. intermontanus Intermountain lupine Annual herb  
Madia citrigracilis Shasta tarweed Annual herb  
Madia citriodora Lemon scented tarweed Annual herb  
Madia elegans Common madia Annual herb 14
Madia elegans ssp. densifolia Leafy common madia Annual herb 12
Madia elegans ssp. elegans Common madia Annual herb 1
Madia elegans ssp. vernalis Spring common madia Annual herb 13
Madia exigua Small tarweed Annual herb 1
Madia glomerata Mountain tarweed Annual herb  
Madia gracilis Gumweed Annual herb 1
Madia minima Little tarweed Annual herb  
Malacothrix floccifera Woolly malacothrix Annual herb 1
Malacothrix glabrata Desert dandelion Annual herb 4
Malacothrix sonchoides Sow thistle malacothrix Annual herb 1
Malacothrix torreyi Torrey's malacothrix Annual herb  
Matricaria discoidea Pineapple weed Annual herb 3
Matricaria occidentalis Valley mayweed Annual herb  
Mentzelia albicaulis White stemmed blazing star Annual herb 2
Mentzelia congesta Clustered blazing star Annual herb  
Mentzelia dispersa Scattered blazing star Annual herb  
Mentzelia montana Mountain blazing star Annual herb  
Mentzelia veatchiana Veatch's blazing star Annual herb  
Micromonolepis pusilla Dwarf monolepis 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 brachiatus Serpentine monkeyflower Annual herb  
Mimulus breviflorus Short flowered monkeyflower Annual herb  
Mimulus breweri Brewer's monkeyflower Annual herb  
Mimulus cusickii Cusick's monkeyflower Annual herb  
Mimulus evanescens Disappearing monkeyflower Annual herb  
Mimulus floribundus Many flowered monkey flower Annual herb 1
Mimulus guttatus Yellow monkey flower Annual, Perennial herb (rhizomatous) 36
Mimulus jepsonii Jepson's monkeyflower Annual herb  
Mimulus latidens Broad toothed monkeyflower Annual herb  
Mimulus layneae Layne's monkeyflower Annual herb  
Mimulus leptaleus Least flowered monkey flower Annual herb  
Mimulus mephiticus Skunky monkeyflower Annual herb  
Mimulus microphyllus Small leaved monkeyflower Annual herb 35
Mimulus nanus Dwarf monkey flower Annual herb  
Mimulus nanus var. jepsonii Jepson's monkeyflower Annual herb  
Mimulus nanus var. mephiticus Skunky monkeyflower 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  
Mimulus pygmaeus Egg lake monkeyflower Annual herb  
Mimulus rubellus Red stemmed himulus Annual herb  
Mimulus suksdorfii Suksdorf's monkeyflower Annual herb  
Mimulus torreyi Torrey's monkeyflower Annual herb  
Mimulus tricolor Tricolor monkeyflower Annual herb  
Mimulus viscidus Viscid monkeyflower Annual herb  
Minuartia douglasii Douglas' sandwort Annual herb  
Monolepis nuttalliana Nuttall's poverty weed Annual herb  
Monolepis pusilla Dwarf poverty weed Annual herb  
Monolepis spathulata Beaver monolepis Annual herb  
Montia dichotoma Dwarf miner's lettuce Annual herb  
Montia fontana Water montia Annual herb  
Montia fontana ssp. chondrosperma Water chickweed Annual herb  
Montia linearis Narrow leaved water chickweed Annual herb  
Muhlenbergia filiformis Slender muhly Annual, Perennial grass  
Myosurus apetalus Mouse tail Annual herb  
Myosurus apetalus var. borealis Bristly mousetail Annual herb  
Myosurus minimus Little mouse tail Annual herb  
Nama aretioides Purple nama Annual herb  
Nama aretioides var. californicum California purple nama Annual herb  
Nama aretioides var. multiflora Ground Nama Annual herb  
Nama aretioides var. multiflorum Many flowered purple nama Annual herb  
Nama demissa Purplemat Annual herb  
Nama demissum Purple mat Annual herb  
Nama densa Leafy Nama Annual herb  
Nama densa var. densa Leafy Nama Annual herb  
Nama densa var. parviflora Leafy Nama Annual herb  
Nama densum Purple mat Annual herb  
Nama densum var. densum Purple mat Annual herb  
Nama densum var. parviflorum Few flowered purple mat Annual herb  
Navarretia breweri Brewer's 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 intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. propinqua Great basin navarretia Annual herb  
Navarretia leptalea Bridges' pincushionplant Annual herb  
Navarretia leptalea ssp. bicolor Bridges' gilia 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 leucocephala ssp. leucocephala White headed navarretia Annual herb  
Navarretia leucocephala ssp. minima Little white navarretia Annual herb  
Navarretia linearifolia Navarretia Annual herb  
Navarretia linearifolia ssp. linearifolia Navarretia Annual herb  
Navarretia modocensis Annual herb  
Navarretia paradoxiclara Navarretia Annual herb  
Navarretia paradoxinota Navarretia Annual herb  
Navarretia propinqua Annual herb  
Navarretia sinistra Alva day's pincushionplant Annual herb  
Navarretia sinistra ssp. sinistra Alva day's gilia Annual herb  
Navarretia tagetina Marigold navarretia Annual herb  
Navarretia vividior Mountain navarretia Annual herb  
Nemacladus capillaris Common nemacladus Annual herb  
Nemacladus rigidus Rigid nemacladus Annual herb  
Nemophila breviflora Great basin nemophila Annual herb  
Nemophila parviflora Small flowered nemophila Annual herb  
Nemophila parviflora var. austiniae Rebecca austin's nemophila Annual herb  
Nemophila pedunculata Meadow nemophila Annual herb  
Nemophila spatulata Sierra nemophila Annual herb  
Neoholmgrenia andina Plateau evening primrose Annual herb  
Nicotiana attenuata Coyote tobacco Annual herb  
Oenothera deltoides Desert lantern Annual herb 6
Oenothera deltoides ssp. cognata Desert lantern Annual herb  
Oenothera deltoides ssp. piperi Piper's desert lantern Annual herb  
Orcuttia tenuis Slender orcutt grass Annual grass  
Orobanche corymbosa Flat topped broom rape Annual herb  
Orobanche vallicola Valley broom rape Annual herb  
Orthocarpus bracteosus Bracted owl's clover 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. cryptanthus Short flowered owl's clover Annual herb  
Orthocarpus luteus Yellow owl's clover Annual herb 1
Oxytheca dendroidea Narrowleaf oxytheca Annual herb  
Oxytheca dendroidea ssp. dendroidea Tall oxytheca Annual herb  
Oxytheca perfoliata Roundleaf puncturebract Annual herb  
Panicum capillare Old witch grass Annual grass 2
Pectocarya penicillata Winged pectocarya Annual herb  
Pectocarya setosa Moth combseed Annual herb 1
Peritoma platycarpa Golden bee plant Annual herb  
Persicaria lapathifolia Common knotweed Annual herb  
Phacelia adenophora Glandular yellow phacelia Annual herb  
Phacelia bicolor Twocolor phacelia Annual herb  
Phacelia bicolor var. bicolor Two colored phacelia Annual herb  
Phacelia eisenii Eisen's phacelia Annual herb  
Phacelia glandulifera Sticky phacelia Annual herb  
Phacelia gymnoclada Naked stem phacelia Annual herb  
Phacelia humilis Low phacelia Annual herb  
Phacelia humilis var. humilis Low phacelia Annual herb  
Phacelia inundata Playa phacelia Annual herb  
Phacelia ixodes Costa baja phacelia Annual herb  
Phacelia linearis Thread leaf phacelia Annual herb  
Phacelia quickii Quick's phacelia Annual herb  
Phacelia racemosa Racemose phacelia Annual herb  
Phacelia tetramera Four parted phacelia Annual herb  
Phacelia thermalis Heat phacelia Annual herb  
Phlox gracilis Annual phlox Annual herb  
Plagiobothrys bracteatus Bracted allocarya Annual herb  
Plagiobothrys canescens Valley popcorn Annual herb 1
Plagiobothrys cognatus Popcorn flower Annual herb  
Plagiobothrys cusickii Cusick's popcorn flower Annual herb  
Plagiobothrys hispidulus Harsh allocarya Annual herb  
Plagiobothrys hispidus Cascade popcorn flower Annual herb  
Plagiobothrys kingii Great basin popcorn flower Annual herb  
Plagiobothrys kingii var. harknessii Harkness' great basin popcorn flower Annual herb  
Plagiobothrys kingii var. kingii Great basin popcorn flower Annual herb  
Plagiobothrys leptocladus Alkali plagiobothrys Annual herb  
Plagiobothrys reticulatus var. rossianorum Fort ross allocarya Annual herb  
Plagiobothrys scouleri Scouler's popcornflower 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 tenellus Slender popcorn flower Annual herb  
Plagiobothrys torreyi Torrey's popcorn flower Annual herb  
Plectritis brachystemon Short spurred plectritis Annual herb  
Plectritis congesta Sea blush Annual herb 1
Plectritis congesta ssp. brachystemon Shortspur seablush Annual herb  
Plectritis macrocera Plectritis Annual herb  
Poa bolanderi Bolander's bluegrass Annual grass  
Pogogyne floribunda Profuse flowered pogogyne Annual herb  
Pogogyne zizyphoroides Sacramento mint Annual herb  
Polemonium micranthum Annual sky pilot 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. 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 parryi Parry's knotweed Annual herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. confertiflorum Dense knotweed Annual herb  
Polygonum polygaloides ssp. esotericum Modoc county 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  
Porterella carnosula Porterella Annual herb  
Potamogeton zosteriformis Eel grass pondweed Annual herb (aquatic)  
Potentilla rivalis Brook cinquefoil Annual, Perennial herb  
Poteridium annuum Western burnet Annual, Perennial herb  
Psilocarphus brevissimus Woolly marbles Annual herb  
Psilocarphus brevissimus var. brevissimus Woolly heads Annual herb  
Psilocarphus elatior Tall woolly marbles Annual herb  
Psilocarphus oregonus Woolly marbles Annual herb  
Psilocarphus tenellus Slender woolly heads Annual herb  
Psilocarphus tenellus var. tenellus Slender woolly heads Annual herb  
Ranunculus macounii Macoun's buttercup Annual, Perennial herb  
Ranunculus sceleratus Cursed crowfoot Annual herb (aquatic)  
Ranunculus sceleratus var. multifidus Cursed buttercup Annual herb (aquatic)  
Ranunculus uncinatus 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. 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. hispida Hispid yellowcress Annual, Perennial herb  
Rorippa palustris ssp. palustris Bog yellowcress 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 sphaerocarpa Round fruit yellow cress Annual herb  
Rotala ramosior Lowland rotala Annual herb  
Rumex fueginus Golden dock Annual, Perennial herb  
Rumex maritimus Golden dock Annual, Perennial herb  
Rumex persicarioides Golden dock Annual, Perennial herb  
Sclerolinon digynum Digynum flax Annual herb  
Scribneria bolanderi Scribneria Annual grass  
Silene verecunda Dolores campion Annual herb  
Silene verecunda ssp. andersonii Anderson's campion Annual herb  
Stellaria nitens Shining chickweed Annual herb  
Stephanomeria exigua Small wirelettuce Annual herb  
Stephanomeria exigua ssp. coronaria White plume wirelettuce Annual herb  
Stephanomeria exigua ssp. exigua Mitra 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  
Streptanthella longirostris Long beaked twist flower Annual herb  
Streptanthus tortuosus Jewelweed Annual, Perennial herb  
Streptanthus tortuosus var. orbiculatus Mountain jewelflower Annual, Perennial herb  
Suaeda calceoliformis Horned sea blite Annual herb 1
Suaeda occidentalis Western horned sea blite Annual herb 1
Subularia aquatica Waterawlwort Annual herb  
Subularia aquatica ssp. americana Water awlwort Annual herb  
Subularia aquatica var. americana American awlwort Annual herb  
Symphyotrichum frondosum Short rayed alkali aster Annual herb  
Symphyotrichum hendersonii Henderson's aster Annual herb  
Tetrapteron graciliflorum Hill sun cup Annual herb  
Thelypodium crispum Wavy leaved thelypodium Annual, Perennial herb  
Thysanocarpus curvipes Common fringe pod Annual herb 2
Thysanocarpus curvipes ssp. curvipes Fringe Pod Annual herb  
Thysanocarpus radians Showy fringe pod Annual herb 1
Tiquilia nuttallii Nuttall's coldenia Annual herb  
Trichostema oblongum Mountain bluecurls Annual herb  
Trichostema simulatum Siskiyou bluecurls Annual herb  
Trifolium cyathiferum Cup clover Annual herb  
Trifolium microcephalum Small head clover Annual herb 4
Trifolium oliganthum Few flowered clover Annual herb 1
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  
Triglochin scilloides Flowering-quillwort Annual herb (aquatic)  
Triphysaria eriantha Butter 'n' eggs Annual herb 1
Triphysaria eriantha ssp. eriantha Butter 'n' eggs Annual herb  
Tripterocalyx crux-maltae Lassen sand verbena Annual herb  
Uropappus lindleyi Silver puffs Annual herb 1
Utricularia minor Lesser bladderwort Annual herb  
Verbena bracteata Bracted verbena 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. 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 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  
Zeltnera davyi Davy's centaury Annual herb 1
Zeltnera exaltata Cancha lagua Annual herb  
Zeltnera muehlenbergii Muehlenberg's centaury Annual herb 2
Zeltnera namophila Spring-loving Centaury Annual herb  
  Lifeform: Biennial2 plants
  Lifeform: Perennial1679 plants
  Lifeform: Fern31 plants
Azolla filiculoides Mosquito fern Fern  
Botrychium ascendens Upswept moonwort Fern (rhizomatous)  
Botrychium crenulatum Scalloped moonwort Fern (rhizomatous)  
Botrychium minganense Mingan moonwort Fern (rhizomatous)  
Botrychium montanum Western goblin Fern (rhizomatous)  
Botrychium multifidum Common grapefern Fern  
Cheilanthes gracillima Lace lip fern Fern 1
Cheilanthes intertexta Coastal lipfern Fern  
Cryptogramma acrostichoides American parsley fern Fern  
Cystopteris fragilis Brittle fern Fern 1
Dryopteris arguta Wood fern Fern 7
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
Isoetes bolanderi Bolander's quillwort Fern  
Isoetes howellii Quillwort Fern  
Isoetes nuttallii Nuttall's quillwort Fern  
Isoetes orcuttii Orcutt's quillwort Fern (aquatic)  
Marsilea oligospora Nelson's pepperwort Fern  
Marsilea vestita Hairy waterclover Fern 6
Marsilea vestita ssp. vestita Hairy pepperwort Fern 5
Myriopteris gracillima Lace lip fern Fern 1
Myriopteris intertexta Coastal lip fern Fern  
Pellaea brachyptera Sierra cliff brake Fern  
Pentagramma triangularis ssp. triangularis Gold back fern Fern  
Pilularia americana Pillwort Fern  
Pteridium aquilinum Western brackenfern Fern 5
Pteridium aquilinum var. pubescens Western bracken fern Fern  
Woodsia oregana Cliff fern Fern  
  Lifeform: Shrub248 plants
  Lifeform: Tree40 plants
Abies concolor White fir Tree 22
Abies magnifica Magnificant silver fir Tree 3
Abies magnifica var. magnifica California red fir Tree  
Acer macrophyllum Bigleaf maple Tree 52
Acer negundo Boxelder Tree 30
Alnus rhombifolia White alder Tree 38
Calocedrus decurrens Incense cedar Tree 40
Fraxinus latifolia Oregon ash Tree 29
Juniperus grandis Sierra juniper Tree  
Juniperus occidentalis Western juniper Tree 2
Juniperus occidentalis var. australis Sierra juniper Tree  
Juniperus occidentalis var. occidentalis Western juniper Tree 2
Pinus albicaulis Whitebark pine Tree 1
Pinus contorta Lodgepole pine Tree 30
Pinus contorta ssp. murrayana Lodgepole pine Tree 4
Pinus jeffreyi Jeffrey pine Tree 17
Pinus lambertiana Sugar pine Tree 13
Pinus monticola Western white pine Tree 10
Pinus ponderosa Yellow pine Tree 29
Pinus ponderosa var. pacifica Pacific ponderosa pine Tree  
Pinus ponderosa var. washoensis Washoe pine Tree  
Pinus sabiniana Gray pine Tree 28
Pinus washoensis Washoe pine Tree  
Populus balsamifera ssp. trichocarpa Black cottonwood Tree 27
Populus fremontii Fremont cottonwood Tree 32
Populus fremontii ssp. fremontii Cottonwood Tree 4
Populus tremuloides Quaking aspen Tree 28
Populus trichocarpa Black cottonwood Tree 27
Pseudotsuga menziesii Douglas fir Tree 31
Pseudotsuga menziesii var. menziesii Douglas fir Tree 4
Quercus garryana Oregon oak Tree 24
Quercus garryana var. garryana Oregon oak Tree 1
Quercus kelloggii California black oak Tree 24
Salix gooddingii Gooding's willow Tree 7
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
Sequoiadendron giganteum Redwood Tree 19
Tsuga mertensiana Patton spruce Tree 13
  Lifeform: Vine1 plant
 
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive.
NB: found in Lassen County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.