Rare Plant Program

Scientific Name

Common Name

Darlingtonia californica

California pitcherplant

Dedeckera eurekensis

July gold

Delphinium bakeri

Baker's larkspur

Delphinium californicum ssp. interius

Hospital Canyon larkspur

Delphinium gypsophilum ssp. gypsophilum

gypsum-loving larkspur

Delphinium hansenii ssp. ewanianum

Ewan's larkspur

Delphinium inopinum

unexpected larkspur

Delphinium luteum

yellow larkspur

Delphinium parryi ssp. blochmaniae

dune larkspur

Delphinium purpusii

Kern County larkspur

Delphinium recurvatum

recurved larkspur

Delphinium uliginosum

swamp larkspur

Delphinium variegatum ssp. kinkiense

San Clemente Island larkspur

Dendromecon harfordii var. harfordii

Channel Island tree poppy

Dicentra formosa ssp. oregana

Oregon bleeding heart

Dicentra nevadensis

Tulare County bleeding heart

Dichanthelium lanuginosum var. thermale

Geysers dichanthelium

Dichondra occidentalis

western dichondra

Dimeresia howellii

doublet

Dithyrea maritima

beach spectaclepod

Downingia concolor var. brevior

Cuyamaca Lake downingia

Downingia pusilla

dwarf downingia

Draba aureola

golden draba

Draba carnosula

Mt. Eddy draba

Draba howellii

Howell's draba

Draba pterosperma

winged-seed draba

Drosera anglica

English sundew

Dudleya abramsii ssp. bettinae

San Luis Obispo serpentine dudleya

Dudleya attenuata ssp. orcuttii

Orcutt's dudleya

Dudleya blochmaniae ssp. blochmaniae

Blochman's dudleya

Dudleya blochmaniae ssp. brevifolia

short-leaved dudleya

Dudleya cymosa ssp. marcescens

marcescent dudleya

Dudleya cymosa ssp. ovatifolia

Santa Monica Mountains dudleya

Dudleya multicaulis

many-stemmed dudleya

Dudleya nesiotica

Santa Cruz Island dudleya

Dudleya saxosa ssp. saxosa

Panamint dudleya

Dudleya setchellii

Santa Clara Valley dudleya

Dudleya stolonifera

Laguna Beach dudleya

Dudleya traskiae

Santa Barbara Island dudleya

Dudleya verityi

Verity's dudleya

Dudleya virens

bright green dudleya

Dudleya viscida

sticky dudleya

Echinocereus engelmannii var. howei

Howe's hedgehog cactus

Enceliopsis covillei

Panamint daisy

Epilobium luteum

yellow willowherb

Epilobium rigidum

Siskiyou Mountains willowherb

Eremalche kernensis

Kern mallow

Eriastrum brandegeae

Brandegee's eriastrum

Eriastrum densifolium ssp. sanctorum

Santa Ana River woollystar

Eriastrum hooveri

Hoover's eriastrum

Ericameria fasciculata

Eastwood's goldenbush

Ericameria ophitidis

serpentine goldenbush

Erigeron aequifolius

Hall's daisy

Erigeron blochmaniae

Blochman's leafy daisy

Erigeron cervinus

Siskiyou daisy

Erigeron miser

starved daisy

Erigeron parishii

Parish's daisy

Erigeron supplex

supple daisy

Eriodictyon altissimum

Indian Knob mountainbalm

Eriodictyon capitatum

Lompoc yerba santa

Eriogonum alpinum

Trinity buckwheat

Eriogonum apricum var. apricum

Ione buckwheat

Eriogonum beatleyae

Beatley's buckwheat

Eriogonum bifurcatum

forked buckwheat

Eriogonum breedlovei var. shevockii

The Needles buckwheat

Eriogonum butterworthianum

Butterworth's buckwheat

Eriogonum congdonii

Congdon's buckwheat

Eriogonum crocatum

Conejo buckwheat

Eriogonum gilmanii

Gilman's buckwheat

Eriogonum hirtellum

Klamath Mountain buckwheat

Eriogonum intrafractum

jointed buckwheat

Eriogonum kelloggii

Kellogg's buckwheat

Eriogonum kennedyi var. pinicola

Kern buckwheat

Eriogonum libertini

Dubakella Mountain buckwheat

Eriogonum luteolum var. caninum

Tiburon buckwheat

Eriogonum nervulosum

Snow Mountain buckwheat

Eriogonum nudum var. murinum

mouse buckwheat

Eriogonum ovalifolium var. vineum

Cushenbury buckwheat

Eriogonum polypodum

Tulare County buckwheat

Eriogonum prociduum

prostrate buckwheat

Eriogonum puberulum

downy buckwheat

Eriogonum shockleyi var. shockleyi

Shockley's buckwheat

Eriogonum siskiyouense

Siskiyou buckwheat

Eriogonum ternatum

ternate buckwheat

Eriogonum twisselmannii

Twisselmann's buckwheat

Eriogonum umbellatum var. humistratum

Mt. Eddy buckwheat

Eriogonum umbellatum var. minus

alpine sulfur-flowered buckwheat

Eriogonum wrightii var. olanchense

Olancha Peak buckwheat

Eriophyllum congdonii

Congdon's woolly sunflower

Eriophyllum lanatum var. hallii

Fort Tejon woolly sunflower

Eriophyllum mohavense

Barstow woolly sunflower

Eriophyllum nevinii

Nevin's woolly sunflower

Eriophyllum nubigenum

Yosemite woolly sunflower

Eryngium aristulatum var. parishii

San Diego button-celery

Eryngium constancei

Loch Lomond button-celery

Eryngium spinosepalum

spiny-sepaled button-celery

Erysimum ammophilum

coast wallflower

Erysimum capitatum ssp. angustatum

Contra Costa wallflower

Erysimum franciscanum

San Francisco wallflower

Erysimum menziesii ssp. eurekense

Humboldt Bay wallflower

Erysimum menziesii ssp. menziesii

Menzies's wallflower

Erysimum teretifolium

Santa Cruz wallflower

Erythronium howellii

Howell's fawn lily

Erythronium pusaterii

Hocket Lakes fawn lily

Erythronium tuolumnense

Tuolumne fawn lily

Eschscholzia procera

Kernville poppy

Eschscholzia rhombipetala

diamond-petaled California poppy

Euphorbia misera

cliff spurge

Fendlerella utahensis

yerba desierto

Ferocactus viridescens

San Diego barrel cactus

Fremontodendron decumbens

Pine Hill flannelbush

Fritillaria agrestis

stinkbells

Fritillaria brandegei

Greenhorn fritillary

Fritillaria eastwoodiae

Butte County fritillary

Fritillaria falcata

talus fritillary

Fritillaria liliacea

fragrant fritillary

Fritillaria ojaiensis

Ojai fritillary

Fritillaria pluriflora

adobe-lily

Fritillaria purdyi

Purdy's fritillary

Fritillaria roderickii

Roderick's fritillary

Fritillaria striata

striped adobe-lily

Galium angustifolium ssp. borregoense

Borrego bedstraw

Galium californicum ssp. luciense

Cone Peak bedstraw

Galium californicum ssp. sierrae

El Dorado bedstraw

Galium glabrescens ssp. modocense

Modoc bedstraw

Galium grande

San Gabriel bedstraw

Galium hardhamiae

Hardham's bedstraw

Galium serpenticum ssp. scotticum

Scott Mountain bedstraw

Galvezia speciosa

island snapdragon

Gentiana fremontii

moss gentian

Gilia maculata

Little San Bernardino Mountains gilia

Gilia ripleyi

Ripley's gilia

Gilia tenuiflora ssp. arenaria

sand gilia

Gilmania luteola

golden carpet

Githopsis diffusa ssp. filicaulis

Mission Canyon bluecup

Gratiola heterosepala

Boggs Lake hedge-hyssop

Grindelia fraxino-pratensis

Ash Meadows gumplant

Grindelia stricta var. angustifolia

marsh gumplant

Hackelia sharsmithii

Sharsmith's stickseed

Harpagonella palmeri

Palmer's grapplinghook

Hazardia detonsa

island hazardia

Helianthella castanea

Diablo helianthella

Helianthemum suffrutescens

Bisbee Peak rush-rose

Helianthus exilis

serpentine sunflower

Helianthus niveus ssp. tephrodes

Algodones Dunes sunflower

Helianthus nuttallii ssp. parishii

Los Angeles sunflower

Hemizonia arida

Red Rock tarplant

Hemizonia minthornii

Santa Susana tarplant

Hemizonia parryi ssp. australis

southern tarplant

Hesperolinon adenophyllum

glandular western flax

Hesperolinon bicarpellatum

two-carpellate western flax

Hesperolinon congestum

Marin western flax

Hesperolinon didymocarpum

Lake County western flax

Hesperolinon drymarioides

drymaria-like western flax

Hesperolinon tehamense

Tehama County western flax

Heterotheca villosa var. shevockii

Shevock's hairy golden-aster

Heuchera duranii

Duran's alumroot

Hibiscus lasiocarpus

rose-mallow

Holocarpha macradenia

Santa Cruz tarplant

Horkelia bolanderi

Bolander's horkelia

Horkelia marinensis

Point Reyes horkelia

Horkelia parryi

Parry's horkelia

Horkelia truncata

Ramona horkelia

Howellia aquatilis

water howellia

Hulsea californica

San Diego sunflower

Hulsea vestita ssp. inyoensis

Inyo hulsea

Ipomopsis tenuifolia

slender-leaved ipomopsis

Iris munzii

Munz's iris

Ivesia argyrocoma

silver-haired ivesia

Ivesia paniculata

Ash Creek ivesia

Ivesia pickeringii

Pickering's ivesia

Ivesia unguiculata

Yosemite ivesia

Ivesia webberi

Webber's ivesia

Jepsonia malvifolia

island jepsonia

Juncus leiospermus var. ahartii

Ahart's dwarf rush

Lasthenia burkei

Burke's goldfields

Lasthenia conjugens

Contra Costa goldfields

Lathyrus biflorus

two-flowered pea

Lathyrus jepsonii var. jepsonii

Delta tule pea

Lathyrus splendens

pride-of-California

Lavatera assurgentiflora ssp. glabra

southern island mallow

Layia carnosa

beach layia

Layia discoidea

rayless layia

Layia jonesii

Jones's layia

Legenere limosa

legenere

Lembertia congdonii

San Joaquin woollythreads

Lepidium jaredii ssp. jaredii

Jared's pepper-grass

Lesquerella kingii ssp. bernardina

San Bernardino Mountains bladderpod

Lessingia germanorum

San Francisco lessingia

Lewisia brachycalyx

short-sepaled lewisia

Lewisia cantelovii

Cantelow's lewisia

Lewisia congdonii

Congdon's lewisia

Lewisia cotyledon var. howellii

Howell's lewisia

Lewisia disepala

Yosemite lewisia

Lewisia longipetala

long-petaled lewisia

Lewisia oppositifolia

opposite-leaved lewisia

Lewisia serrata

saw-toothed lewisia

Lewisia stebbinsii

Stebbins's lewisia

Lilaeopsis masonii

Mason's lilaeopsis

Lilium bolanderi

Bolander's lily

Lilium humboldtii ssp. humboldtii

Humboldt lily

Lilium humboldtii ssp. ocellatum

ocellated Humboldt lily

Lilium kelloggii

Kellogg's lily

Lilium maritimum

coast lily

Lilium occidentale

western lily

Lilium pardalinum ssp. pitkinense

Pitkin Marsh lily

Lilium pardalinum ssp. vollmeri

Vollmer's lily

Lilium pardalinum ssp. wigginsii

Wiggins's lily

Lilium rubescens

redwood lily

Lilium washingtonianum ssp. purpurascens

purple-flowered Washington lily

Limnanthes bakeri

Baker's meadowfoam

Limnanthes douglasii ssp. sulphurea

Point Reyes meadowfoam

Limnanthes floccosa ssp. californica

Butte County meadowfoam

Limnanthes floccosa ssp. floccosa

woolly meadowfoam

Limnanthes gracilis ssp. parishii

Parish's meadowfoam

Linanthus acicularis

bristly linanthus

Linanthus ambiguus

serpentine linanthus

Linanthus arenicola

sand linanthus

Linanthus bellus

desert beauty

Linanthus killipii

Baldwin Lake linanthus

Linanthus orcuttii

Orcutt's linanthus

Linanthus rattanii

Rattan's linanthus

Listera cordata

heart-leaved twayblade

Loeflingia squarrosa var. artemisiarum

sagebrush loeflingia

Lomatium ciliolatum var. hooveri

Hoover's lomatium

Lomatium congdonii

Congdon's lomatium

Lomatium foeniculaceum ssp. inyoense

Inyo lomatium

Lomatium howellii

Howell's lomatium

Lomatium parvifolium

small-leaved lomatium

Lomatium peckianum

Peck's lomatium

Lomatium ravenii

Raven's lomatium

Lomatium repostum

Napa lomatium

Lomatium rigidum

stiff lomatium

Lomatium stebbinsii

Stebbins's lomatium

Lotus dendroideus var. traskiae

San Clemente Island lotus

Lotus rubriflorus

red-flowered lotus

Lupinus antoninus

Anthony Peak lupine

Lupinus citrinus var. citrinus

orange lupine

Lupinus citrinus var. deflexus

Mariposa lupine

Lupinus constancei

The Lassics lupine

Lupinus dalesiae

Quincy lupine

Lupinus duranii

Mono Lake lupine

Lupinus holmgrenanus

Holmgren's lupine

Lupinus lepidus var. culbertsonii

Hockett Meadows lupine

Lupinus ludovicianus

San Luis Obispo County lupine

Lupinus magnificus var. glarecola

Coso Mountains lupine

Lupinus magnificus var. magnificus

Panamint Mountains lupine

Lupinus milo-bakeri

Milo Baker's lupine

Lupinus nipomensis

Nipomo Mesa lupine

Lupinus padre-crowleyi

Father Crowley's lupine

Lupinus sericatus

Cobb Mountain lupine

Lupinus spectabilis

shaggyhair lupine

Lupinus tidestromii

Tidestrom's lupine

Lupinus tracyi

Tracy's lupine

Lycium brevipes var. hassei

Santa Catalina Island desert-thorn

Lycopodiella inundata

bog club-moss

Lyonothamnus floribundus ssp. aspleniifolius

Santa Cruz Island ironwood