The species lists below include all of the state and federal listed endangered, threatened, and rare plants in California. Species with multiple designations are listed more than once, and will appear in each category that is suitable. However, species with multiple designations will have a “-” after the latin name and a series of letters that describes all of the designations. The “key” is as follows:

FE = Federal Endangered         FT = Federal Threatened

SE = State Endangered              ST = State Threatened

SR = State Rare

Taxonomic References:

Federal Listed Plants

There are

Federal Endangered

  • San Mateo thorn‐mint (Acanthomintha duttonii) – FE, SE
  • Cushenbury oxytheca (Acanthoscyphus parishii var. goodmaniana)
  • Munz’s onion (Allium munzii) – FE, ST
  • Sonoma alopecurus (Alopecurus aequalis var. sonomensis)
  • San Diego ambrosia (Ambrosia pumila)
  • large-flowered fiddleneck (Amsinckia grandiflora) – FE, SE
  • Mcdonald’s rockcress (Arabis mcdonaldiana) – FE, SE
  • Santa Rosa Island manzanita (Arctostaphylos confertiflora)
  • Franciscan manzanita (Arctostaphylos franciscana)
  • Del Mar manzanita (Arctostaphylos glandulosa ssp. crassifolia)
  • Presidio manzanita (Arctostaphylos montana ssp. ravenii) – FE, SE
  • marsh sandwort (Arenaria paludicola) – FE, SE
  • Cushenbury milk-vetch (Astragalus albens)
  • Braunton’s milk-vetch (Astragalus brauntonii)
  • Clara Hunt’s milk-vetch (Astragalus claranus) – FE, ST
  • Lane Mountain milk-vetch (Astragalus jaegerianus)
  • Coachella Valley milk-vetch (Astragalus lentiginosus var. coachellae)
  • Ventura Marsh milk-vetch (Astragalus pycnostachyus var. lanosissimus) – FE, SE
  • coastal dunes milk-vetch (Astragalus tener var. titi) – FE, SE
  • triple-ribbed milk-vetch (Astragalus tricarinatus)
  • San Jacinto Valley crownscale (Atriplex coronata var. notatior)
  • Nevin’s barberry (Berberis nevinii) – FE, SE
  • island barberry (Berberis pinnata ssp. insularis) – FE, SE
  • Sonoma sunshine (Blennosperma bakeri) – FE, SE
  • Hoffmann’s rockcress (Boechera hoffmannii)
  • Stebbins’ morning-glory (Calystegia stebbinsii) – FE, SE
  • white sedge (Carex albida) – FE, SE
  • Tiburon paintbrush (Castilleja affinis var. neglecta) – FE, ST
  • soft-leaved paintbrush (Castilleja mollis)
  • California jewelflower (Caulanthus californicus) – FE, SE
  • Coyote ceanothus (Ceanothus ferrisiae)
  • Pine Hill ceanothus (Ceanothus roderickii) – FE, SR
  • Catalina Island mountain-mahogany (Cercocarpus traskiae) – FE, SE
  • salt marsh bird’s-beak (Chloropyron maritimum ssp. maritimum) – FE, SE
  • soft salty bird’s-beak (Chloropyron maritimum ssp. molle) – FE, SR
  • palmate salty bird’s-beak (Chloropyron palmatum) – FE, SE
  • Howell’s spineflower (Chorizanthe howellii) – FE, ST
  • Orcutt’s spineflower (Chorizanthe orcuttiana) – FE, SE
  • Ben Lomond spineflower (Chorizanthe pungens var. hartwegiana)
  • Scotts Valley spineflower (Chorizanthe robusta var. hartwegii)
  • robust spineflower (robust spineflower)
  • Sonoma spineflower (Chorizanthe valida) – FE, SE
  • Crystal Springs fountain thistle (Cirsium fontinale var. fontinale) – FE, SE
  • San Luis Obispo fountain thistle (Cirsium fontinale var. obispoense) – FE, SE
  • Suisun thistle (Cirsium hydrophilum var. hydrophilum)
  • La Graciosa thistle (Cirsium scariosum var. loncholepis) – FE, ST
  • Presidio clarkia (Presidio clarkia) – FE, SE
  • Vine Hill clarkia (Clarkia imbricata) – FE, SE
  • Pismo clarkia (Clarkia speciosa ssp. immaculata) – FE, SR
  • Pennell’s bird’s-beak (Cordylanthus tenuis ssp. capillaris) – FE, SR
  • Gaviota tarplant (Deinandra increscens ssp. villosa) – FE, SE
  • Baker’s larkspur (Delphinium bakeri) – FE, SE
  • golden larkspur (Delphinium luteum) – FE, SR
  • San Clemente Island larkspur (Delphinium variegatum ssp. kinkiense) – FE, SE
  • Vandenberg monkeyflower (Diplacus vandenbergensis)
  • slender-horned spineflower (Dodecahema leptoceras) – FE, SE
  • Santa Clara Valley dudleya (Dudleya abramsii ssp. setchellii)
  • Santa Barbara Island dudleya (Dudleya traskiae) – FE, SE
  • Kern mallow (Eremalche kernensis)
  • Santa Ana River woollystar (Eriastrum densifolium ssp. sanctorum) – FE, SE
  • Indian Knowb mountainbalm (Eriodictyon altissimum) – FE, SE
  • Lompoc yerba santa (Eriodictyon capitatum) – FE, SR
  • lone buckwheat (Eriogonum apricum var. apricum) – FE, SE
  • Irish Hill buckwheat (Eriogonum apricum var. prostratum) – FE, SE
  • Cushenbury buckwheat (Eriogonum ovalifolium var. vineum)
  • San Mateo woolly sunflower (Eriophyllum latilobum) – FE, SE
  • San Diego button-celery (Eryngium aristulatum var. parishii) – FE, SE
  • Loch Lonond button-celery (Eryngium constancei) – FE, SE
  • Contra Costa wallflower (Erysimum capitatum var. angustatum) – FE, SE
  • Menzies’ wallflower (Erysimum menziesii) – FE, SE
  • Santa Cruz wallflower (Erysimum teretifolium) – FE, SE
  • Pine Hill flannelbush (Fremontodendron decumbens) – FE, SR
  • Mexican flannelbush (Fremontodendron mexicanum) – FE, SR
  • Gentner’s fritillary (Fritillaria gentneri)
  • box bedstraw (Galium buxifolium) – FE, SR
  • El Dorado bedstraw (Galium californicum ssp. sierrae) – FE, SR
  • Monterey gilia (Gilia tenuiflora ssp. arenaria) – FE, ST
  • Hoffmann’s slender-flowered gilia (Gilia tenuiflora ssp. hoffmannii)
  • Burke’s goldfields (Lasthenia burkei) – FE, SE
  • Contra Costa goldfields (Lasthenia conjugens)
  • beach layia (Layia carnosa) – FE, SE
  • San Francisco lessingia (Lessingia germanorum) – FE, SE
  • western lily (Lilium occidentale) – FE, SE
  • Pitkin Marsh lily (Lilium pardalinum ssp. pitkinense) – FE, SE
  • Butte County meadowfoam (Limnanthes floccosa ssp. californica) – FE, SE
  • Sebastopol meadowfoam (Limnanthes vinculans) – FE, SE
  • San Clemente Island woodland star (Lithophragma maximum) – FE, SE
  • Nipomo Mesa lupine (Lupinus nipomensis) – FE, SE
  • Tidestrom’s lupine (Lupinus tidestromii) – FE, SE
  • San Clemente Island bush-mallow (Malacothamnus clementinus) – FE, SE
  • Santa Cruz Island bush-mallow (Malacothamnus fasciculatus var. nesioticus) – FE, SE
  • Santa Cruz Island malacothrix (Malacothrix indecora)
  • island malacothrix (Malacothrix squalida)
  • willowy monardella (Monardella viminea) – FE, SE
  • San Joaquin woollythreads (Monolopia congdonii)
  • Gambel’s water cress (Nasturtium gambelii) – FE, ST
  • few-flowered navarretia (Navarretia leucocephala ssp. pauciflora) – FE, ST
  • many-flowered navarretia (Navarretia leucocephala ssp. plieantha) – FE, SE
  • Amargosa nitrophila (Amargosa nitrophila) – FE, SE
  • Kneeland Prairie pennycress (Noccaea fendleri ssp. californica)
  • Eureka Dunes evening-primrose (Oenothera californica ssp. eurekensis) – FE, SR
  • Antioch Dunes evening-primrose (Oenothera deltoides ssp. howellii) – FE, SE
  • Bakersfield cactus (Opuntia basilaris var. treleasei) – FE, SE
  • California Orcutt grass (Orcuttia californica) – FE, SE
  • hairy Orcutt grass (Orcuttia pilosa) – FE, SE
  • Sacramento Orcutt grass (Orcuttia viscida) – FE, SE
  • white-rayed pentachaeta (Pentachaeta bellidiflora) – FE, SE
  • Lyon’s pentachaeta (Pentachaeta lyonii) – FE, SE
  • northern Channel Islands phacelia (Phacelia insularis var. insularis)
  • Yreka phlox (Phlox hirsuta) – FE, SE
  • San Bernardino Mountains bladderpod (Physaria kingii ssp. bernardina)
  • Yadon’s rein orchid (Piperia yadonii)
  • Calistoga popcornflower (Plagiobothrys strictus) – FE, ST
  • San Bernardino blue grass (Poa atropurpurea)
  • Napa blue grass (Poa napensis) – FE, SE
  • San Diego mesa mint (Pogogyne abramsii) – FE, SE
  • Otay Mesa mint (Pogogyne nudiuscula) – FE, SE
  • Scotts Valley polygonum (Polygonum hickmanii) – FE, SE
  • Hickman’s cinquefoil (Potentilla hickmanii) – FE, SE
  • Harweg’s golden sunburst (Pseudobahia bahiifolia) – FE, SE
  • Lake County stonecrop (Sedella leiocarpa) – FE, SE
  • Santa Cruz Island winged-rockcress (Sibara filifolia)
  • Keck’s checkerbloom (Sidalcea keckii)
  • Kenwood Marsh checkerbloom (Sidalcea oregana ssp. valida) – FE, SE
  • bird-foot checkerbloom (Sidalcea pedata) – FE, SE
  • Metcalf Canyon jewelflower (Streptanthus albidus ssp. albidus)
  • Tiburon jewelflower (Streptanthus glandulosus ssp. niger) – FE, SE
  • California seablite (Suaeda californica)
  • Eureka Valley dune grass (Swallenia alexandrae) – FE, SR
  • California dandelion (Taraxacum californicum)
  • slender-petaled thelypodium (Thelypodium stenopetalum) – FE, SE
  • Santa Cruz Island fringepod (Thysanocarpus conchuliferus)
  • showy rancheria clover (Trifolium amoenum)
  • Monterey clover (Trifolium trichocalyx) – FE, SE
  • Greene’s tuctoria (Tuctoria greenei) – FE, SR
  • Crampton’s tuctoria or Solano grass (Tuctoria mucronata) – FE, SE

Federal Threatened

  • San Diego thorn‐mint (Acanthomintha ilicifolia) – FT, SE
  • San Clemente Island lotus (Acmispon dendroideus var. traskiae) – FT, SE
  • Morro manzanita (Arctostaphylos morroensis)
  • lone manzanita (Arctostaphylos myrtifolia)
  • pallid manzanita (Arctostaphylos pacifica) – FT, SE
  • Fish Slough milk-vetch (Astragalus lentiginosus var. piscinensis)
  • Peirson’s milk-vetch (Astragalus magdalenae var. peirsonii) – FT, SE
  • Encinitas baccharis (Baccharis vanessae) – FT, SE
  • thread-leaved brodiaea (Brodiaea filifolia) – FT, SE
  • Chinese Camp brodiaea (Brodiaea pallida) – FT, SE
  • Tiburon mariposa-lily (Calochortus tiburonensis) – FT, ST
  • Mariposa pussypaws (Calyptridium pulchellum)
  • San Benito evening-primrose (Camissonia benitensis)
  • succulent owl’s-clover (Castilleja campestris var. succulenta) – FT, SE
  • ash-gray paintbrush (Castilleja cinerea)
  • San Clemente Island paintbrush (Castilleja grisea) – FT, SE
  • Vail Lake ceanothus (Ceanothus ophiochilus) – FT, SE
  • Hoover’s spurge (Chamaesyce hooveri)
  • Santa Lucia purple amole (Chlorogalum purpureum var. purpureum)
  • Camatta Canyon amole (Chlorogalum purpureum var. reductum) – FT, SR
  • Monterey spineflower (Chorizanthe pungens var. pungens)
  • Springville clarkia (Clarkia springvillensis) – FT, SE
  • Otay tarplant (Deinandra conjugens) – FT, SE
  • Agoura Hills dudleya (Dudleya cymosa ssp. agourensis)
  • marcescent dudleya (Dudleya cymosa ssp. marcescens) – FT, SR
  • Santa Monica dudleya (Dudleya cymosa ssp. ovatifolia)
  • Santa Cruz Island dudleya (Dudleya nesiotica) – FT, SR
  • Conejo dudleya (Dudleya parva)
  • Laguna Beach dudleya (Dudleya stolonifera) – FT, ST
  • Verity’s dudleya (Dudleya verityi)
  • Ash Meadows daisy (Enceliopsis nudicaulis var. corrugata)
  • Big Bear Valley sandwort (Eremogone ursina)
  • Parish’s daisy (Erigeron parishii)
  • southern mountain buckwheat (Eriogonum kennedyi var. austromontanum)
  • Ash Meadows gumplant (Grindelia fraxinipratensis)
  • island rush-rose (Helianthemum greenei)
  • Santa Cruz cypress (Hesperocyparis abramsiana var. abramsiana) – FT, SE
  • Butano Ridge cypress (Hesperocyparis abramsiana var. butanoensis) – FT, SE
  • Gowen cypress (Hesperocyparis goveniana)
  • Marin western flax (Hesperolinon congestum) – FT, ST
  • Santa Cruz tarplant (Holocarpha macradenia) – FT, SE
  • water howellia (Howellia aquatilis)
  • Webber’s iversia (Ivesia webberi)
  • spreading navarretia (Navarretia fossalis)
  • Colusa grass (Neostapfia colusana) – FT, SE
  • San Joaquin Valley Orcutt grass (Orcuttia inaequalis) – FT, SE
  • slender Orcutt grass (Orcuttia tenuis) – FT, SE
  • Layne’s ragwort (Packera layneae) – FT, SR
  • San Joaquin adobe sunburst (Pseudobahia peirsonii) – FT, SE
  • Hidden Lake bluecurls (Trichostema austromontanum ssp. compactum)
  • Red Hills vervain (Verbena californica) – FT, ST
  • big-leaved crownbeard (Verbesina dissita) – FT, ST

Federal Candidate

  • whitebark pine (Pinus albicaulis)

State Listed Plants

There are

State Endangered

  • San Mateo thorn‐mint (Acanthomintha duttonii) – FE, SE
  • San Diego thorn‐mint (Acanthomintha ilicifolia) – FT, SE
  • San Clemente Island bird’s-foot trefoil (Acmispon argophyllus var. adsurgens)
  • Santa Cruz Island bird’s-foot trefoil (Acmispon argophyllus var. niveus)
  • San Clemente Island lotus (Acmispon dendroideus var. traskiae) – FT, SE
  • large-flowered fiddleneck (Amsinckia grandiflora) – FE, SE
  • Mcdonald’s rockcress (Arabis mcdonaldiana) – FE, SE
  • Vine Hill manzanita (Arctostaphylos densiflora)
  • Hearsts’ manzanita (Arctostaphylos hookeri ssp. hearstiorum)
  • San Bruno Mountain manzanita (Arctostaphylos imbricata)
  • Presidio manzanita (Arctostaphylos montana ssp. ravenii) – FE, SE
  • Pacific manzanita (Arctostaphylos pacifica)
  • pallid manzanita (Arctostaphylos pacifica) – FT, SE
  • marsh sandwort (Arenaria paludicola) – FE, SE
  • Humboldt milk-vetch (Astragalus agnicidus)
  • Sodaville milk-vetch (Astragalus lentiginosus var. sesquimetralis)
  • Peirson’s milk-vetch (Astragalus magdalenae var. peirsonii) – FT, SE
  • Ventura Marsh milk-vetch (Astragalus pycnostachyus var. lanosissimus) – FE, SE
  • coastal dunes milk-vetch (Astragalus tener var. titi) – FE, SE
  • Bakersfield smallscale (Atriplex tularensis)
  • Encinitas baccharis (Baccharis vanessae) – FT, SE
  • Nevin’s barberry (Berberis nevinii) – FE, SE
  • island barberry (Berberis pinnata ssp. insularis) – FE, SE
  • Sonoma sunshine (Blennosperma bakeri) – FE, SE
  • thread-leaved brodiaea (Brodiaea filifolia) – FT, SE
  • Kaweah brodiaea (Brodiaea insignis)
  • Chinese Camp brodiaea (Brodiaea pallida) – FT, SE
  • Indian Valley brodiaea (Brodiaea rosea)
  • Stebbins’ morning-glory (Calystegia stebbinsii) – FE, SE
  • white sedge (Carex albida) – FE, SE
  • succulent owl’s-clover (Castilleja campestris var. succulenta) – FT, SE
  • San Clemente Island paintbrush (Castilleja grisea) – FT, SE
  • Pitkin Marsh paintbrush (Castilleja uliginosa)
  • California jewelflower (Caulanthus californicus) – FE, SE
  • Vail Lake ceanothus (Ceanothus ophiochilus) – FT, SE
  • Catalina Island mountain-mahogany (Cercocarpus traskiae) – FE, SE
  • salt marsh bird’s-beak (Chloropyron maritimum ssp. maritimum) – FE, SE
  • palmate salty bird’s-beak (Chloropyron palmatum) – FE, SE
  • Orcutt’s spineflower (Chorizanthe orcuttiana) – FE, SE
  • San Fernando Valley spineflower (Chorizanthe parryi var. fernandina) – SE, proposed FT
  • Sonoma spineflower (Chorizanthe valida) – FE, SE
  • Ashland thistle (Cirsium ciliolatum)
  • Crystal Springs fountain thistle (Cirsium fontinale var. fontinale) – FE, SE
  • San Luis Obispo fountain thistle (Cirsium fontinale var. obispoense) – FE, SE
  • Presidio clarkia (Presidio clarkia) – FE, SE
  • Vine Hill clarkia (Clarkia imbricata) – FE, SE
  • Merced clarkia (Clarkia lingulata)
  • Springville clarkia (Clarkia springvillensis) – FT, SE
  • seaside bird’s-beak (Cordylanthus rigidus ssp. littoralis)
  • Otay tarplant (Deinandra conjugens) – FT, SE
  • Gaviota tarplant (Deinandra increscens ssp. villosa) – FE, SE
  • Mojave tarplant (Deinandra mohavensis)
  • Baker’s larkspur (Delphinium bakeri) – FE, SE
  • San Clemente Island larkspur (Delphinium variegatum ssp. kinkiense) – FE, SE
  • slender-horned spineflower (Dodecahema leptoceras) – FE, SE
  • Cuyamaca Lake downingia (Downingia concolor var. brevior)
  • short-leaved dudleya (Dudleya brevifolia)
  • Santa Barbara Island dudleya (Dudleya traskiae) – FE, SE
  • Santa Ana River woollystar (Eriastrum densifolium ssp. sanctorum) – FE, SE
  • Indian Knowb mountainbalm (Eriodictyon altissimum) – FE, SE
  • Trinity buckwheat (Eriogonum alpinum)
  • lone buckwheat (Eriogonum apricum var. apricum) – FE, SE
  • Irish Hill buckwheat (Eriogonum apricum var. prostratum) – FE, SE
  • San Nicolas Island buckwheat (Eriogonum grande var. timorum)
  • Kellogg’s buckwheat (Eriogonum kelloggii)
  • Thorne’s buckwheat (Eriogonum thornei)
  • San Mateo woolly sunflower (Eriophyllum latilobum) – FE, SE
  • San Diego button-celery (Eryngium aristulatum var. parishii) – FE, SE
  • Loch Lonond button-celery (Eryngium constancei) – FE, SE
  • Delta button-celery (Eryngium racemosum)
  • Contra Costa wallflower (Erysimum capitatum var. angustatum) – FE, SE
  • Menzies’ wallflower (Erysimum menziesii) – FE, SE
  • Santa Cruz wallflower (Erysimum teretifolium) – FE, SE
  • Roderick’s fritillary (Fritillaria roderickii)
  • San Clemente Island bedstraw (Galium catalinense ssp. acrispum)
  • Boggs Lake hedge-hyssop (Gratiola heterosepala)
  • Algondones Dunes sunflower (Helianthus niveus ssp. tephrodes)
  • Santa Cruz cypress (Hesperocyparis abramsiana var. abramsiana) – FT, SE
  • Butano Ridge cypress (Hesperocyparis abramsiana var. butanoensis) – FT, SE
  • Lake County western flax (Hesperolinon didymocarpum)
  • Santa Cruz tarplant (Holocarpha macradenia) – FT, SE
  • Burke’s goldfields (Lasthenia burkei) – FE, SE
  • beach layia (Layia carnosa) – FE, SE
  • San Francisco lessingia (Lessingia germanorum) – FE, SE
  • western lily (Lilium occidentale) – FE, SE
  • Pitkin Marsh lily (Lilium pardalinum ssp. pitkinense) – FE, SE
  • Parish’s meadowfoam (Limnanthes alba ssp. parishii)
  • Point Reyes meadowfoam (Limnanthes douglasii ssp. sulphurea)
  • Butte County meadowfoam (Limnanthes floccosa ssp. californica) – FE, SE
  • Sebastopol meadowfoam (Limnanthes vinculans) – FE, SE
  • San Clemente Island woodland star (Lithophragma maximum) – FE, SE
  • Nipomo Mesa lupine (Lupinus nipomensis) – FE, SE
  • Tidestrom’s lupine (Lupinus tidestromii) – FE, SE
  • San Clemente Island bush-mallow (Malacothamnus clementinus) – FE, SE
  • Santa Cruz Island bush-mallow (Malacothamnus fasciculatus var. nesioticus) – FE, SE
  • willowy monardella (Monardella viminea) – FE, SE
  • many-flowered navarretia (Navarretia leucocephala ssp. plieantha) – FE, SE
  • Colusa grass (Neostapfia colusana) – FT, SE
  • Amargosa nitrophila (Amargosa nitrophila) – FE, SE
  • Dehesa nolina (Nolina interrata)
  • Antioch Dunes evening-primrose (Oenothera deltoides ssp. howellii) – FE, SE
  • Bakersfield cactus (Opuntia basilaris var. treleasei) – FE, SE
  • California Orcutt grass (Orcuttia californica) – FE, SE
  • San Joaquin Valley Orcutt grass (Orcuttia inaequalis) – FT, SE
  • hairy Orcutt grass (Orcuttia pilosa) – FE, SE
  • slender Orcutt grass (Orcuttia tenuis) – FT, SE
  • Sacramento Orcutt grass (Orcuttia viscida) – FE, SE
  • Baja California birdbush (Ornithostaphylos oppositifolia)
  • Geysers panicum (Panicum acuminatum var. thermale)
  • white-rayed pentachaeta (Pentachaeta bellidiflora) – FE, SE
  • Lyon’s pentachaeta (Pentachaeta lyonii) – FE, SE
  • Yreka phlox (Phlox hirsuta) – FE, SE
  • San Francisco popcornflower (Plagiobothrys diffusus)
  • Napa blue grass (Poa napensis) – FE, SE
  • San Diego mesa mint (Pogogyne abramsii) – FE, SE
  • Santa Lucia mint (Pogogyne clareana)
  • Otay Mesa mint (Pogogyne nudiuscula) – FE, SE
  • Scotts Valley polygonum (Polygonum hickmanii) – FE, SE
  • Hickman’s cinquefoil (Potentilla hickmanii) – FE, SE
  • Harweg’s golden sunburst (Pseudobahia bahiifolia) – FE, SE
  • San Joaquin adobe sunburst (Pseudobahia peirsonii) – FT, SE
  • Tahoe yellow cress (Rorippa subumbellata)
  • small-leaved rose (Rosa minutifolia)
  • Lake County stonecrop (Sedella leiocarpa) – FE, SE
  • Owens Valley checkerbloom (Sidalcea covillei)
  • Kenwood Marsh checkerbloom (Sidalcea oregana ssp. valida) – FE, SE
  • bird-foot checkerbloom (Sidalcea pedata) – FE, SE
  • Scadden Flat checkerbloom (Sidalcea stipularis)
  • Red Mountain catchfly (Silene campanulata ssp. campanulata)
  • Tiburon jewelflower (Streptanthus glandulosus ssp. niger) – FE, SE
  • slender-petaled thelypodium (Thelypodium stenopetalum) – FE, SE
  • Monterey clover (Trifolium trichocalyx) – FE, SE
  • Crampton’s tuctoria or Solano grass (Tuctoria mucronata) – FE, SE

State Threatened

  • Munz’s onion (Allium munzii) – FE, ST
  • Baker’s manzanita (Arctostaphylos bakeri ssp. bakeri)
  • The Cedars manzanita (Arctostaphylos bakeri ssp. sublaevis)
  • Clara Hunt’s milk-vetch (Astragalus claranus) – FE, ST
  • Tiburon mariposa-lily (Calochortus tiburonensis) – FT, ST
  • tree-anemone (Carpenteria californica)
  • Tiburon paintbrush (Castilleja affinis var. neglecta) – FE, ST
  • Howell’s spineflower (Chorizanthe howellii) – FE, ST
  • surf thistle (Cirsium rhothophilum)
  • La Graciosa thistle (Cirsium scariosum var. loncholepis) – FE, ST
  • beach spectaclepod (Dithyrea maritima)
  • Laguna Beach dudleya (Dudleya stolonifera) – FT, ST
  • striped adobe-lily (Fritillaria striata)
  • Monterey gilia (Gilia tenuiflora ssp. arenaria) – FE, ST
  • Orcutt’s hazardia (Hazardia orcuttii)
  • Marin western flax (Hesperolinon congestum) – FT, ST
  • Mariposa lupine (Lupinus citrinus var. deflexus)
  • Milo Baker’s lupine (Lupinus milo‐bakeri)
  • Gambel’s water cress (Nasturtium gambelii) – FE, ST
  • few-flowered navarretia (Navarretia leucocephala ssp. pauciflora) – FE, ST
  • Calistoga popcornflower (Plagiobothrys strictus) – FE, ST
  • North Coast semaphore grass (Pleuropogon hooverianus)
  • Red Hills vervain (Verbena californica) – FT, ST
  • big-leaved crownbeard (Verbesina dissita) – FT, ST

State Rare

  • Yosemite onion (Allium yosemitense)
  • Long Valley milk-vetch (Astragalus johannis‐howellii)
  • Mono milk-vetch (Astragalus monoensis)
  • Trask’s milk-vetch (Astragalus traskiae)
  • bensoniella (Bensoniella oregona)
  • Point Reyes blennosperma (Blennosperma nanum var. robustum)
  • dwarf goldenstar (Bloomeria humilis)
  • leafy reed grass (Calamagrostis foliosa)
  • Dunn’s mariposa-lily (Calochortus dunnii)
  • Siskiyou mariposa-lily (Calochortus persistens)
  • Tompkins’ sedge (Carex tompkinsii)
  • Mt. Gleason paintbrush (Castilleja gleasoni)
  • Hearsts’ ceanothus (Ceanothus hearstiorum)
  • maritime ceanothus (Ceanothus maritimus)
  • Mason’s ceanothus (Ceanothus masonii)
  • Pine Hill ceanothus (Ceanothus roderickii) – FE, SR
  • Camatta Canyon amole (Chlorogalum purpureum var. reductum) – FT, SR
  • soft salty bird’s-beak (Chloropyron maritimum ssp. molle) – FE, SR
  • Pismo clarkia (Clarkia speciosa ssp. immaculata) – FE, SR
  • Mt. Diablo bird’s-beak (Cordylanthus nidularius)
  • Pennell’s bird’s-beak (Cordylanthus tenuis ssp. capillaris) – FE, SR
  • Wiggins’ croton (Croton wigginsii)
  • bristlecone cryptantha (Cryptantha roosiorum)
  • July gold (Dedeckera eurekensis)
  • Red Rock tarplant (Deinandra arida)
  • Santa Susana tarplant (Deinandra minthornii)
  • Cuyamaca larkspur (Delphinium hesperium ssp. cuyamacae)
  • golden larkspur (Delphinium luteum) – FE, SR
  • Mount Laguna aster (Dieteria asteroides var. lagunensis)
  • marcescent dudleya (Dudleya cymosa ssp. marcescens) – FT, SR
  • Santa Cruz Island dudleya (Dudleya nesiotica) – FT, SR
  • Tracy’s eriastrum (Eriastrum tracyi)
  • Lompoc yerba santa (Eriodictyon capitatum) – FE, SR
  • Butterworth’s buckwheat (Eriogonum butterworthianum)
  • conejo buckwheat (Eriogonum crocatum)
  • Santa Barbara Island buckwheat (Eriogonum giganteum var. compactum)
  • Twisselmann’s buckwheat (Eriogonum twisselmannii)
  • Congdon’s woolly sunflower (Eriophyllum congdonii)
  • Pine Hill flannelbush (Fremontodendron decumbens) – FE, SR
  • Mexican flannelbush (Fremontodendron mexicanum) – FE, SR
  • Borrego bedstraw (Galium angustifolium ssp. borregoense)
  • box bedstraw (Galium buxifolium) – FE, SR
  • El Dorado bedstraw (Galium californicum ssp. sierrae) – FE, SR
  • rock lady (Holmgrenanthe petrophila)
  • Tahquitz ivesia (Ivesia callida)
  • Congdon’s lewisia (Lewisia congdonii)
  • Mason’s lilaeopsis (Lilaeopsis masonii)
  • Baker’s meadowfoam (Limnanthes bakeri)
  • Father Crowley’s lupine (Lupinus padre‐crowleyi)
  • Twisselmann’s nemacladus (Nemacladus twisselmannii)
  • Eureka Dunes evening-primrose (Oenothera californica ssp. eurekensis) – FE, SR
  • Gander’s ragwort (Packera ganderi)
  • Layne’s ragwort (Packera layneae) – FT, SR
  • Dudley’s lousewort (Pedicularis dudleyi)
  • adobe sanicle (Sanicula maritima)
  • rock sanicle (Sanicula saxatilis)
  • Cuesta Pass checkerbloom (Sidalcea hickmanii ssp. anomala)
  • Parish’s checkerbloom (Sidalcea hickmanii ssp. parishii)
  • Eureka Valley dune grass (Swallenia alexandrae) – FE, SR
  • Santa Ynez false lupine (Thermopsis macrophylla)
  • Pacific Grove clover (Trifolium polyodon)F

State Candidate

  • Livermore tarplant (Deinandra bacigalupii)
  • coast yellow leptosiphon (Leptosiphon croceus)
  • The Lassics lupine (Lupinus constancei)