APPENDIX L 

SPECIAL-STATUS PLANT AND WILDLIFE 

SPECIES 

Table 1: Special-Status Plants with Potential to Occur in the Vicinity of the DesertXpress Project: California 

Common Name Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Chaparral sand-verbena Abronia villosa var.aurita

–/–/1B.1/–/– Central and southern South Coast, 

western Sonora desert 

Sandy soils in chaparral, coastal scrub, desert dunes; 80–1,600 meters 

Jan–Sep 

Mormon needle grass Achnatherum aridum

–/–/2.3/–/– Eastern Mojave desert with 

occurrences in Inyo, Mono, and San Bernadino Counties; Nevada, Arizona 

Carbonate soils in pinyon-juniper woodland, Joshua tree woodland; 500–2,570 meters 

May–Jul 

Desert Ageratina Ageratina herbacea

–/–/2.3/–/– Eastern Desert mountains; 

Colorado, New Mexico, Texas 

Rocky soils in pinyon-juniper woodland; 1,525–2,200 meters 

Jul–Oct 

Ripley’s aliciella (gilia) Aliciella ripleyi(formerly Gilia ripleyi) 

–/–/2.3/–/NE Mojave Desert in Inyo and San 

Bernardino Counties; Nevada 

Carbonate soils in Mohavean desert scrub; 305-1,900 meters 

May-Jul 

Nevada onion Allium nevadense

–/–/2.3/–/– Desert mountains Sandy or gravelly soils in pinyon-juniper 

woodland; 1,300–1,700 meters 

Apr–May 

Spanish needle onion Allium shevockii

–/–/1B.3/–/W Southern high Sierra Nevada: 

Spanish Needle Peak in northeastern Kern County 

Rocky areas in pinyon-juniper woodland and upper montane coniferous forest; 1,465-2,500 meters 

Jun 

Small-flowered androstephium Androstephium breviflorum

–/–/2.3/–/W Eastern Desert with occurrences in 

Inyo, Riverside, and San Bernadino Counties; Arizona, Nevada, Utah 

Desert dunes, bajadas in mojavean desert scrub; 220–640 meters 

Mar–Apr 

Darwin rock cress Arabis pulchra var. munciensis

–/–/2.3/S/NE Great Basin, Mojave Desert 

regions, including portions of Inyo, San Bernardino Counties; Nevada 

Carbonate soils in chenopod scrub, Mohavean desert scrub; 1,100-2,075 meters 

Apr 

Shockley’s rock cress Arabis shockleyi

–/–/2.2/–/NE San Bernardino Mountains, Mojave 

Desert: Inyo and San Bernardino Counties; Nevada, Utah 

Carbonate or quartzite, rocky or gravelly soils in pinyon-juniper woodland; 875-2,205 meters 

May-Jun 

White bear poppy Arctomecon merriamii

–/–/2.2/–/NE Northeastern Mojave desert; 

southern Nevada 

Rocky soils in chenopod scrub, Mojavean desert scrub; 490–1,800 meters 

Apr–May 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Charleston sandwort Arenaria congesta var.charlestonensis

–/–/1B.3/–/– Desert mountains; southwest 

Nevada 

Sandy soils in pinyon-juniper woodland; 2,200–2,225 meters 

Jun 

Cloak fern Argyrochosma limitanea var. limitanea

–/–/2.3/–/NE Eastern Desert mountains; Utah, 

New Mexico, northwestern Mexico 

Carbonate, rocky soils in pinyon-juniper woodland; 1,800 meters 

Sporolates from Apr–Oct 

Mojave milkweed Asclepias nyctaginifolia

–/–/2.3/–/– Mojave Desert; New Mexico Mojavean desert scrub, pinyon-juniper 

woodland; 1,000–1,700 meters 

May–Jun 

Cushenbury milk-vetch Astragalus albens

E/–/1B.1/–/W Known from fewer than 20 

occurrences in San Bernadino County, including the Northeast San Bernardino Mountains and Cushenbury Canyon 

Carbonate or granitic soils in Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland; 1,095-2,000 meters 

Mar-May 

Playa milk-vetch Astragalus allochrousvar. playanus

–/–/2.2/–/NE Eastern Mojave Desert in San 

Bernardino County; Arizona, New Mexico, Texas, Utah 

Sandy areas in Mohavean desert scrub; 800 meters 

Apr 

Darwin Mesa milk-vetch Astragalus atratus var. mensanus

–/–/1B.1/S/NE Desert mountains north and west of 

Panamint Valley, Inyo County 

Volcanic clay or gravelly soils in Great Basin scrub, Joshua tree woodland, pinyon-juniper woodland; 1,340-2,315 meters 

Apr-Jun 

Cima milk-vetch Astragalus cimae var. cimae

–/–/1B.2/–/– Eastern Desert mountains Clay soils in pinyon-juniper woodland, 

Great Basin scrub, Joshua tree woodland; 890–1,850 meters 

Apr–May 

Walker Pass milk-vetch Astragalus ertterae 

–/–/1B.3/–/W Reported occurrences near Walker 

Pass in Kern County in the Southern High Sierra 

Pinyon-juniper woodland on sandy, granitic soils; 1,705-1,900 meters 

Apr-May 

Black milk-vetch Astragalus funereus 

–/–/1B.2/S/NE Northeastern desert mountains, 

Funeral mountains (east of Death Valley) in Inyo County; also Nevada

Mojavean desert scrub, sometimes on carbonate, gravelly, clay, or rocky soils; 1,280-1,500 meters 

Mar-May 

Geyer’s milk-vetch Astragalus geyeri var. geyeri 

–/–/2.2/S/NE East of Sierra Nevada: Inyo, 

Lassen, and Mono Counties; Nevada, Oregon, Washington, and elsewhere 

Sandy soils in chenopod scrub, Great Basin scrub; 1,160-1,550 meters 

May-Aug 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Gilman’s milk-vetch Astragalus gilmanii 

–/–/1B.2/S/NE Northern desert mountains, 

Panamint Mountains in Inyo County; also Nevada 

Gravelly or rocky soils in Great Basin scrub, pinyon-juniper woodland; 2,000-3,050 meters 

May-Aug 

Lane Mountain milkvetch Astragalus jaegerianus 

E/–/1B.1/–/W Vicinity of Lane Mountain, San 

Bernardino County 

Granitic, sandy or gravelly substrates in Joshua tree woodland and Mohavean desert scrub, on dry stony hillsides and desert mesas, usually under shrubs; 900-1,200 meters 

Apr-Jun 

Shining milk-vetch\ Astragalus lentiginosus var. micans 

–/–/1B.2/–/NE Northern Mojave Desert, Eureka 

Valley in Inyo County 

Desert dunes; 770-1,175 meters Mar-Jun 

Sodaville milk-vetch Astragalus lentiginosus var. sesquimetralis 

–/E/1B.1/–/NE Northern Mojave Desert, northern 

Death Valley, eastern slope of Last Chance Mountains in Inyo County; also adjacent Nevada 

Alkaline meadows and seeps; 955-965 meters 

Apr-Jul 

Curved-pod milk-vetch Astragalus mojavensis var. hemigyrus 

–/–/1A/–/NE Formerly known from desert 

mountains, Darwin Mesa, west of Death Valley in Inyo* County; Nevada 

Carbonate soils in Joshua tree woodland, Mohavean desert scrub; 1,250-1,600 meters 

Apr-Jun 

Little big-pod or broadkeeled milk-vetch Astragalus platytropis 

–/–/2.2/–/NE East of Sierra Nevada: Inyo and 

Mono Counties; Idaho, Nevada, Oregon, Utah, and elsewhere 

Rocky areas in alpine boulder and rock field, pinyon-juniper woodland, subalpine coniferous forest; 2,345-3,550 meters 

Jun-Sep 

Preuss’s milk-vetch Astragalus preussii var. preussii 

–/–/2.3/–/NE Eastern Mojave Desert, 

southeastern Inyo County, northeastern San Bernardino County; Arizona, Nevada, Utah 

Clay soils in chenopod scrub, Mohavean desert scrub; 750-780 meters 

May-Jun 

Naked milk-vetch Astragalus serenoi var. shockleyi 

–/–/2.2/–/NE White and Indio mountains, 

northern desert mountains: Inyo and Mono Counties; Nevada 

Alkaline, granitic alluvium soils in chenopod scrub, Great Basin scrub, pinyon-juniper woodland; 1,500-2,250 m

May-Jul 

Triple-ribbed milk-vetch Astragalus tricarinatus 

E/–/1B.2/–/W Riverside and San Bernardino 

Counties, near Whitewater and Morongo Valley 

On sandy or gravelly soils in alluvial deposits along desert washes in Joshua tree woodland and Sonoran desert scrub; 450-1,190 meters 

Feb-May 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Scaly cloak fern Astrolepis cochisensis ssp. cochisensis 

–/–/2.3/–/NE Desert mountains with reported 

occurrences in San Bernadino County; Arizona, Baja California, New Mexico 

Carbonate soils in pinyon-juniper woodland, Joshua tree woodland; 900–1,800 meters 

Apr–Oct 

Ayenia Ayenia compacta 

–/–/2.3–/NE Eastern desert mountains, 

Providence mountains, western and central Sonoran Desert, Eagle Mountains, in Riverside, San Bernardino, and San Diego Counties; Arizona, Baja California, Sonora (Mexico) 

In sandy, gravelly desert washes and dry rocky canyons in creosote bush scrub, Mojavean and Sonoran desert scrub; 150-1095 meters 

Mar-Apr 

Fremont barberry Berberis fremontii 

–/–/3/–/NE Eastern and southern Mojave 

desert, Peninsular ranges in San Bernardino and San Diego Counties; Arizona, Nevada, Baja California, Sonora (Mexico); and elsewhere 

Rocky areas in chaparral, Joshua tree woodland, and pinyon-juniper woodland; 840-1,850 meters 

Apr-Jun 

King’s eyelash grass Blepharidachne kingii

–/–/2.3/–/NE East of Sierra Nevada with 

occurrences in Inyo and Mono Counties; also Nevada and elsewhere 

Great Basin scrub usually on carbonate substrates; 1,065-2,135 m 

May 

Red grama Bouteloua trifida 

–/–/2.3/–/NE Eastern Desert mountains; Utah, 

Texas 

Carbonate or rocky soils in Mojavean desert scrub; 700–2,000 meters 

May–Sep 

Alkali mariposa lily Calochortus striatus 

–/–/1B.2/–/W Western Mojave Desert, Kern, Los 

Angeles, San Bernardino, and Tulare Counties; Nevada 

Alkaline mesic soils in chaparral, chenopod scrub, Mohavean desert scrub; 70-1,595 meters 

Apr-Jun 

Booth’s eveningprimrose Camissonia boothii ssp. boothii 

–/–/2.3/–/– East of Sierra Nevada, Inyo, Mono, 

and San Bernardino Counties, Arizona, Nevada 

Joshua tree woodland and pinyonjuniper woodland; 900 - 2400 meters Apr-May 

Crucifixion thorn Castela emoryi 

–/–/2.3/–/NE, W Desert Province Gravelly soils in Sonoran desert scrub, 

playas, Mojavean desert scrub; 90–670 meters 

Jun–Jul (uncommonly in Apr) 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Jaeger’s caulostramina Caulostramina jaegeri

–/–/1B.2/S/NE Inyo mountains, Inyo County Rocky or carbonate soils in Great Basin 

scrub, pinyon-juniper woodland, and subalpine coniferous forest; 2,135-2,800 meters 

May-Jul 

Wooton’s lace fern Cheilanthes wootonii

–/–/2.3/–/NE East of Sierra Nevada, desert 

mountains in Inyo and San Bernardino Counties; Arizona, Baja California, New Mexico, Nevada, Sonora (Mexico), Utah 

Rocky places in Joshua tree woodland, pinyon-juniper woodland; 1,600-1,900 meters 

May-Oct 

Desert bird’s-beak Cordylanthus eremicus ssp. eremicus

–/–/4.3/–/NE Northern desert mountains, Inyo 

and San Bernardino Counties 

Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland on rocky substrate; 1000 - 3000 meters 

Aug-Oct 

Purple bird’s-beak Cordylanthus parviflorus

–/–/2.3/–/NE Eastern desert mountains, New 

York mountains, Providence mountains, San Bernardino County; Arizona, Idado, Nevada, Utah 

Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland; 700 - 2200 meters 

Aug-Oct 

Tecopa bird’s-beak Cordylanthus tecopensis 

–/–/1B.2/–/NE Southeastern Sierra Nevada range, 

northern Mojave Desert, Inyo and San Bernardino Counties; Nevada 

Alkaline meadows, flats, saltbush scrub, and Mohavean desert scrub, 200-3,000'

Jul-Oct 

Desert pincushion Coryphantha chlorantha 

–/–/2.2/–/– Northeastern San Bernardino 

County 

Carbonate, gravelly, or rocky soils in Joshua tree woodland, Mojavean desert scrub, or pinyon-juniper woodland; 45-1525 meters 

Apr-Sep 

Viviparous foxtail cactus Coryphantha vivipara var. rosea 

–/–/2.2/–/– Desert mountains in northeastern 

San Bernadino County; southern Nevada, northwestern Arizona 

Carbonate soils in Mojavean desert scrub and pinyon-juniper woodland; 1,250–2,700 meters 

May–Jun 

Clokey’s cryptantha Cryptantha clokeyi 

–/–/1B.1/–/– North of Barstow, San Bernardino 

County, last seen 1935 

Mohavean desert scrub on sandy or gravelly soils; 800-1280 meters 

Apr 

Desert cymopterus Cymopterus deserticola

–/–/1B.2/–/W Historically known from Kern, Los 

Angeles and San Bernardino Counties, currently known from Edwards Air Force Base 

Joshua tree woodland, Mohavean desert scrub on fine to coarse, loose, sandy soil of flats in old dune areas with well-drained sand; 630-1500 meters 

Mar-May 

Gilman’s cymopterus Cymopterus gilmanii

–/–/2.3/–/NE Inyo, and San Bernardino Counties; 

Nevada 

Mohavean desert scrub, often on carbonate rock; 915-2000 meters 

Apr-May 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Ripley’s cymopterus Cymopterus ripleyi var. saniculoides

–/–/1B.2/–/NE Inyo; Nevada Joshua tree woodland, Mohavean 

desert scrub on sandy, carbonate soils 

Apr-Jun 

July gold Dedeckera eurekensis 

–/R/1B.3/–/NE Inyo and Mono Counties Mohavean desert scrub on carbonate 

soils 

Jun-Aug 

Panamint dudleya Dudleya saxosa ssp. 

saxosa 

–/–/1B.3/–/NE Inyo, Riverside, and San 

Bernardino Counties 

Mohavean desert scrub, pinyon-juniper woodland on granitic or carbonate substrates; 960-2200 meters; 

Apr-Sep 

Howe’s hedgehog cactus Echinocereus engelmannii var. howei 

–/–/1B.1/S/NE San Bernardino County Mohavean desert scrub; 430-775 

meters 

Apr-May 

Panamint daisy Enceliopsis covillei 

–/–/1B.2/S/NE Inyo County Subalkaline soils in Mohavean desert 

scrub 

Mar-Jun 

Nine-awned pappus grass Enneapogon desvauxii 

–/–/2.3/–/NE Eastern Mojave desert; Texas, 

Colorado, northern Mexico 

Rocky or carbonate soils in pinyonjuniper woodland; 1,275–1,825 meters Aug-Sep 

Gilman’s goldenbush Ericameria gilmanii

–/–/1B.3/NE Inyo and Kern Counties Subalpine coniferous forest, upper 

montane coniferous forest on carbonate or granitic, rocky substrates; 2100-3400 meters 

Aug-Sep 

Hall’s daisy Erigeron aequifolius 

–/–/1B.3/–/W Fresno, Kern, and Tulare Counties On rocky, granitic substrates in 

boadleaved upland forest, lower and upper montane coniferous forest, pinyon-juniper woodland; 1500-2400 meters 

Jul-Aug 

Parish’s daisy Erigeron parishii 

T/–/1B.1/–/W Riverside and San Bernardino 

Counties 

Mohavean desert scrub, pinyon-juniper woodland, usually on carbonate substrates; 800-2000 meters 

May-Jun 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Limestone daisy Erigeron uncialis var. 

uncialis 

–/–/1B.2/–/– Inyo and San Bernardino Counties, 

Nevada 

Great Basin scrub, subalpine coniferous forest on carbonate substrates; 1900-2900 meters 

Jun-Jul 

Utah daisy Erigeron utahensis 

–/–/2.3/–/– Eastern Desert mountains; 

Colorado, Arizona 

Carbonate soils in pinyon-juniper woodland; 1,500–2,320 meters 

May–Jun 

Narrow-leaved yerba santa Eriodictyon angustifolium 

–/–/2.3/–/– Eastern Desert mountains (New 

York and Granite mountains) 

Pinyon-juniper woodland; 1,500–1,900 meters 

May–Aug 

Forked buckwheat Eriogonum bifurcatum 

–/–/1B.2/–/NE Inyo and San Bernardino Counties; 

Nevada 

Sandy soils in chenopod scrub; 700-810 meters 

Apr-Jun 

Reveal’s buckwheat Eriogonum contiguum 

–/–/2.3/–/NE Inyo and San Bernardino Counties; 

Nevada 

Sandy soils in Mohavean desert scrub; 30-1320 meters 

Feb-Jun 

Wildrose Canyon buckwheat Eriogonum eremicola

–/–/1B.3/S/NE Inyo County On sandy or gravelly substrate in 

pinyon-juniper woodland, upper montane coniferous forest; 2200-3100 meters 

Jun-Sep 

Thorne's buckwheat Eriogonum ericifolium var. thornei 

–/E/1B.2/–/NE Eastern Desert mountains (New 

York mountains) 

Gravelly soils in pinyon-juniper woodland; 1,800–1,830 meters 

Jul–Aug 

Kern buckwheat Eriogonum kennedyi var. pinicola 

–/–/1B.1/–/W Southeastern Kern County On clay soils in chaparral, pinyonjuniper woodland; 1340-1950 meters May-Jun 

Jointed buckwheat Eriogonum intrafractum

–/–/1B.3/–/NE Inyo County On carbonate substrates in Mohavean 

desert scrub; 610-1950 meters 

May-Oct 

Panamint Mountains Buckwheat Eriogonum microthecum var. panamintense

–/–/1B.3/S/NE Inyo County Rocky areas in pinyon-juniper 

woodland; 1890-3250 meters 

Jun-Oct 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Cushenbury buckwheat Eriogonum ovalifolium var. vineum 

E/–/1B.1/–/W San Bernardino County On carbonate substrates in Joshua tree 

woodland, Mohavean desert scrub, pinyon-juniper woodland; 1400-2440 meters 

May-Aug 

Juniper buckwheat Eriogonum umbellatum var. juniporinum 

–/–/2.3/–/– Eastern Desert mountains in 

eastern San Bernadino County 

Mojavean desert scrub, pinyon-juniper woodland; 1,300–2,500 meters 

Jul–Oct 

Hairy erioneuron Erioneuron pilosum 

–/–/2.3/–/– East of Sierra Nevada, eastern 

Desert mountains 

Rocky, sometimes carbonate soils in pinyon-juniper woodland; 1,500–2,010 meters 

May–Jun 

Barstow woolly sunflower Eriophyllum mohavense 

–/–/1B.2/–/W Central Mojave desert in western 

and central San Bernadino County 

Chenopod scrub, Mojavean desert scrub, playas; 500–960 meters 

Apr–May 

Red Rock poppy Eschscholzia minutiflora ssp. twisselmannii 

–/–/1B.2/–/W Kern County Volcanic tuff in Mohavean desert scrub; 

680-1230 meters 

Mar-May 

Kingston Mtns. Bedstraw Galium hilendiae ssp. kingstonense 

–/–/1B.3/S/NE San Bernardino County; Nevada Rocky areas in lower montane 

coniferous forest and pinyon-juniper woodland; 1200-2100 meters 

Jun 

Wright’s bedstraw Galium wrightii 

–/–/2.3/–/– San Bernardino County; Arizona, 

Baja California, New Mexico, Texas, Sonora Mexico 

Rocky areas in lower montane coniferous forest, pinyon-juniper woodland, on carbonate substrate; 1600-2000 meters 

Jun-Oct 

Little San Bernardino Mtns. gilia Gilia maculata (syn. Linanthus maculatus) 

–/–/1B.2/–/W Riverside and San Bernardino 

Counties, near Joshua Tree National Monument 

Desert dunes, Joshua tree woodland, creosote bush scrub, in areas of braided wash; 195-2075 meters 

Apr-May 

Golden carpet Gilmania luteola

–/–/1B.3/–/NE Inyo County Alkaline barrens in chenopod scrub Mar-Apr 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Pungent glossopetalon Glossopetalon pungens

–/–/1B.2/S/NE San Bernardino County; Nevada Carbonate soils in chaparral, pinyonjuniper woodland; 1675-2000 meters May-Jun 

Ash Meadows gumplant Grindelia fraxinopratensis 

T/–/1B.2/–/NE Inyo County: known from two 

occurrences in Carson Slough, Amargosa Desert; Nevada 

Meadows in moist clay soils; 635-700 meters 

Jun-Oct 

Red Rock tarplant Hemizonia arida (syn. Deinandra arida) 

–/R/1B.2/–/W Kern County Mohavean desert scrub on clay soils; 

300-950 meters 

Apr-Nov 

Mohave tarplant Hemizonia mohavensis(syn. Deinandra mohavensis) 

–/E/1B.3/–/W Riverside and San Bernardino 

Counties 

Riparian scrub, Mojave desert scrub, and Joshua tree woodland, on low sand bars in river bed; 640-1600 meters 

Jul-Oct 

Inyo hulsea Hulsea vestita ssp. inyoensis

–/–/2.2/S/NE, W Inyo and Mono Counties; Nevada Great Basin scrub, pinyon-juniper 

woodland on rocky substrate; 2835-3900 meters 

Apr-Jun 

Yellow ivesia Ivesia arizonica var. arizonica 

–/–/3/– /NE Inyo County; Arizona, Nevada, 

Utah 

Rocky areas in pinyon-juniper woodland, subalpine and upper montane coniferous forest; 1200-3100 meters 

May-Aug 

Jaeger’s ivesia Ivesia jaegeri 

–/–/1B.3/S/NE Clark Mountains, San Bernardino 

County; Nevada 

Pinyon-juniper woodland, upper montane coniferous forest on carbonate, rocky substrates; 1830-3600 meters 

Jun-Jul 

Kingston Mtns. ivesia Ivesia patellifera 

–/–/1B.3/S/NE San Bernardino County Pinyon-juniper woodland on granitic, 

rocky substrate; 1400-2100 meters 

Jun-Oct 

Knotted rush Juncus nodosus 

–/–/2.3/–/– Inyo, and possibly Tulare Counties Moist meadows and lake margins; 13-

1980 meters 

Jul-Sep 

Hillside wheat grass Leymus salinus ssp. 

mojavensis 

–/–/2.3/–/– Desert mountains; Idaho, Colorado Rocky soils in pinyon-juniper woodland; 

1,350–2,135 meters 

May–Jun 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Sand linanthus Linanthus arenicola

–/–/–/–/NE, W Inyo and San Bernardino Counties; 

Nevada 

Joshua tree woodland, Mohavean desert scrub, and desert dunes, on sandy soils 366—1372 meters 

Mar-Apr 

Plains stoneweed Lithospermum incisum 

–/–/2.3/–/– Desert mountains in Keystone 

Canyon, New York mountains, San Bernadino County; Nevada, Montana, British Columbia 

Pinyon-juniper woodland; 1,650–1,720 meters 

May 

Sagebrush loeflingia Loeflingia squarrosavar. artemisiarum

–/–/2.2/S/W Inyo, Kern, Lassen,and Los 

Angeles counties; Nevada, Oregon, Wyoming 

Great Basin scrub and Sonoran desert scrub on sandy flats and dunes; 700-1615 meters 

Apr-May 

Owens Peak lomatium Lomatium shevockii

–/–/1B.3/–/W Kern County: known from two 

occurrences in Owens Peak and Mt. Jenkins area 

Rocky areas in lower and upper montane coniferous forest; 1770-2200 meters 

Apr-May 

Scrub lotus Lotus argyraeus var. multicaulis

–/–/1B.3/–/– Desert mountains in the New York 

mountains 

Granitic soils in pinyon-juniper woodland; 1,200–1,500 meters 

Apr–Jun 

Providence Mtns. lotus Lotus argyraeus var. notitius

–/–/1B.3/–/NE San Bernardino County: one 

occurrence in the Providence Mtns.

Pinyon-juniper woodland; 1200-2000 meters 

May-Aug 

Panamint Mountains lupine Lupinus magnificus var. magnificus

–/–/1B.2/S/NE Inyo County Great Basin scrub, Mohavean desert 

scrub, upper montane coniferous forest; 1000-2285 meters 

Apr-Jun 

Wolftail Lycurus phleoides var. phleoides

–/–/2.2/–/NE San Bernardino County: known in 

California from onw occurrences in the New York Mountains; Arizona 

Joshua tree woodland, pinyon-juniper woodland; 500 meters 

Aug-Sep 

Spearleaf Matelea parvifolia 

–/–/2.3/–/NE Sonoran desert, Riverside, San 

Bernardino, and San Diego Counties; Arizona, Baja California, Nevada, Texas 

Dry rocky ledges and slopes in creosote bush scrub; 440-1095 meters 

Mar-May 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Violet twining snapdragon Maurandya antirrhiniflora ssp. antirrhiniflora

–/–/2.3/–/NE San Bernardino County; Arizona, 

Sonora (Mexico), Texas 

Joshua tree woodland, Mohavean desert scrub, on carbonate soils; 760-1525 meters 

Apr-May 

Rock lady Maurandya petrophila(syn. Holmgrenanthe petrophila) 

–/R/1B.2/–/NE Inyo County: Titus and Fall 

canyons 

Mohavean desert scrub on rocky carbonate soils; 515-1675 meters 

Apr-Jun 

Creamy blazing star Mentzelia tridentata 

–/–/1B.3/–/– Central Mojave desert Mojavean desert scrub; 700–1,160 

meters 

Mar–May 

Utah monkeyflower Mimulus glabratus ssp. utahensis

–/–/2.1/–/NE Mono and Inyo Counties; Nevada Meadows, pinyon-juniper woodland; 

610-2000 meters 

Apr 

Mojave monkeyflower Mimulus mohavensis 

–/–/1B.2/–/W Mojave desert near Barstow, San 

Bernadino County 

Sandy or gravelly washes in Joshua tree woodland, Mojavean desert scrub; 600–1,200 meters 

Apr–Jun 

Kelso Creek monkeyflower Mimulus shevockii

–/–/1B.2/–/W Kern County Joshua tree woodland, pinyon-juniper 

woodland, on sandy, granitic substrates; 800-1340 meters 

Mar-May 

Sweet-smelling monardella Monardella beneolens

–/–/1B.3/S/W Inyo, Kern, and Tulare Counties: 

known from few occurrences on the eastern Sierran crest 

Granitic substrates in aAlpine boulder and rock field, subalpine and upper montane coniferous forest; 2500-3500 meters 

Jul-Sep 

Robison’s Monardella Monardella robisonii

–/–/1B.3/S/W Riverside and San Bernardino 

Counties 

Pinyon-juniper woodland; 610-1500 meters 

Apr-Oct 

Appressed muhly Muhlenbergia appressa

–/–/2.2/–/NE San Bernardino County, San 

Clemente Island, Arizona; Baja California 

Rocky areas in coastal scrub, Mohavean desert scrub, valley and foothill grassland; 20-1600 meters 

Apr-May 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Tough muhly Muhlenbergia arsenei

–/–/2.3/–/– Desert mountains in the Clark 

mountains; Utah, New Mexico, Baja California 

Rocky or carbonate soils in pinyonjuniper woodland; 1,400–1,860 meters Aug–Oct 

Delicate muhly Muhlenbergia fragilis

–/–/2.3/–/NE San Bernardino County; Arizona, 

Baja California, New Mexico, Sonora (Mexico), Texas 

Pinyon-juniper woodland on carbonate, gravelly substrates; 1600 meters 

Oct 

Few-flowered muhly Muhlenbergia pauciflora

–/–/2/–/NE San Bernardino County; Arizona Rocky areas in pinyon-juniper 

woodland; 1755-1860 meters 

Sep 

Few-flowered muhly Muhlenbergia pauciflora

–/–/2/–/– Desert mountains in the New York 

mountains; Colorado, Texas, Mexico 

Rocky soils in pinyon-juniper woodland; 1,755–1,860 meters 

Sep–Oct 

False buffalo-grass Munroa squarrosa

–/–/2.2/–/NE San Bernardino County; Arizona, 

Nevada, 

Pinyon-juniper woodland on gravelly or rocky substrates; 1500-1800 meters 

Oct 

Forked purple mat Nama dichotomum var. dichotomum 

–/–/2.3/–/– Desert mountains in the New York 

mountains; Texas, Mexico 

Granitic or carbonate soils in pinyonjuniper woodland; 1,900–2,200 meters Sep–Oct 

Twisselmann’s nemacladus Nemacladus twisselmannii

–/R/1B.2/–/NE Kern and Tulare Counties Upper montane coniferous forest on 

sandy or rocky, granitic substrates; 2240-2450 meters 

 

Amargosa nitrophila Nitrophila mohavensis

E/E/1B.1/–/NE Inyo County: near Carson Slough in 

the Amargosa Desert; Nevada 

Mesic playas, on clay soils; 425-750 meters 

May-Oct 

Short-joint beavertail Opuntia basilaris var.

brachyclada

–/–/1B.2/–/– Los Angeles and San Bernardino 

Counties 

Chaparral, Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland, desert washes, riparian woodland on dry slopes; 425-1800 meters 

Apr-Jun 

Curved-spine beavertail Opuntia curvospina

–/–/2.2/–/– Desert mountains in the New York 

mountains and eastern San Bernadino County 

Chaparral, Mojavean desert scrub, pinyon-juniper woodland; 1,000–1,400 meters 

Apr–Jun 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Beautiful cholla Opuntia pulchella

–/–/2.2/–/NE Inyo and Mono Counties; Arizona, 

Nevada, Utah 

Desert dunes, Great Basin scrub, Mohavean desert scrub, on sandy soils; 1500-1980 meters 

May-Jun 

Cushenbury oxytheca Oxytheca parishii var. goodmaniana (syn. Acanthoscyphus) 

E/–/1B.1 Cushenbury area in San 

Bernardino County 

Pinyon-juniper woodland on sandy talus carbonate soils; 1300-2375 meters 

May-Sep 

Watson’s oxytheca Oxytheca watsonii

–/–/2.2/–/NE Inyo and Nevada Counties Joshua tree woodland, Mohavean 

desert scrub on sandy soils; 1200-2000 meters 

May-Jul 

Cliff brake Pellaea truncata

–/–/2.3/–/– Eastern Desert mountains in the 

New York and Providence mountains 

Volcanic, granitic, or rocky soils in pinyon-juniper woodland; 1,200–2,150 meters 

Apr–Jun 

White-margined beardtongue Penstemon albomarginatus

–/–/1B.2/–/W San Bernardino County; Arizona, 

Nevada 

Stabilized desert dunes, Mohavean desert scrub, on sandy soils; 640-1065 meters 

Mar-May 

Rosy two-toned beardtongue Penstemon bicolor ssp. 

roseus

–/–/2.3/–/– Northeastern San Bernadino 

County 

Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland, on gravelly, rocky substrates; 700-1500 meters 

May 

Limestone beardtongue Penstemon calcareus

–/–/1B.3/–/NE Inyo and San Bernardino Counties; 

Nevada 

Joshua tree woodland, Mohavean desert scrub, pinyon-juniper woodland, on carbonate, rocky substrates; 1065-2040 meters 

Apr-May 

Death Valley beardtongue Penstemon fruticiformis var. amargosae

–/–/1B.3/S/NE Inyo and San Bernardino Counties; 

Nevada 

Mohavean desert scrub; 850-1400 meters 

Apr-Jun 

Stephens’s beardtongue Penstemon stephensii

–/–/1B.3/S/NE Inyo and San Bernardino Counties Mohavean desert scrub, pinyon-juniper 

woodland, on rocky carbonate substrates; 60-1850 meters 

Apr-Jun 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Thompson's beardtongue Penstemon thompsoniae

–/–/2.3/–/– Eastern Desert mountains in the 

New York and Clark mountains; Utah, Arizona 

Gravelly, carbonate soils in pinyonjuniper woodland; 1,500–2,700 meters May–Jun 

Utah beardtongue Penstemon utahensis

–/–/2.3/–/– Eastern Desert mountains in the 

New York and Kingston mountains; Utah, Arizona 

Rocky soils in chenopod scrub, Great Basin scrub, Mojavean desert scrub, pinyon-juniper woodland; 1,065–2,500 meters 

Apr–May 

Inyo rock daisy Perityle inyoensis

–/–/1B.2/S/NE Inyo County: southern Inyo Mtns. Carbonate rocky areas in pinyon-juniper 

woodland, Great Basin scrub; 1800-2710 meters 

Jun-Aug 

Hanaupah rock daisy Perityle villosa

–/–/1B.3/S/NE Inyo County: endemic to mountinas 

of Death Valley National Park 

Carbonate rocky areas in pinyon-juniper woodland, Great Basin scrub; 1700-2600 meters 

Jun 

Death Valley sandpaper-plant Petalonyx thurberi ssp. 

gilmanii

–/–/1B.3/S/NE Inyo County Desert dunes, Mohavean desert scrub; 

260-1445 meters 

May-Sep 

Saline Valley phacelia Phacelia amabilis

–/–/3.3–/NE Inyo County Riparian scrub, subalpine coniferous 

forest, in gravelly areas; 500-700 meters 

Apr-May 

Aven Nelson's phacelia Phacelia anelsonii

–/–/2.3/–/– Eastern Desert mountains in the 

New York mountains; Utah 

Carbonate, sandy, or gravelly soils in Joshua tree woodland, pinyon-juniper woodland; 1,200–1,500 meters 

Apr–May 

Sky-blue phacelia Phacelia coerulea

–/–/2.3/–/– Eastern Mojave desert; Utah, 

Texas, Mexico 

Mojavean desert scrub, pinyon-juniper woodland; 1,400–2,000 meters 

Apr–May 

Death Valley roundleaved phacelia Phacelia mustelina

–/–/1B.3/S/NE/ Desert mountains, Inyo and San 

Bernardino Counties; Nevada 

In crevices on the face of limestone cliffs, volcanic outcrops, or gravel talus in Mohavean desert scrub and pinyonjuniper woodland; 730-2620 meters 

May-Jul 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Charlotte’s Phacelia Phacelia nashiana

–/–/1B.2/–/– Inyo, Kern, and Tulare Counties Joshua tree woodland, Mohavean 

desert scrub, pinyon-juniper woodland on granitic sandy or rocky areas on steep slopes or flats; 600-2200 meters 

Mar-Jun 

Nine Mile Canyon Phacelia Phacelia novenmillensis

–/–/1B.2/–/– Inyo, Kern, and Tulare Coutnies Broadleaved upland forest, cismontane 

woodland, pinyon-juniper woodland, upper montane coniferous forest, on sandy or gravelly soils; 1645-2640 meters 

May-Jun 

Parish's phacelia Phacelia parishii

–/–/1B.1/–/W Western Mojave desert in 

northwestern San Bernadino County; Nevada 

Clay or alkaline soils in playas, Mojavean desert scrub; 540–1,200 meters 

Apr–Jul 

Jaeger’s phacelia Phacelia perityloides var. jaegeri 

–/–/1B.3/–/– Northeastern San Bernardino 

County 

Carbonate soils in pinyon-juniper woodland; 1,830–2,345 meters 

May-Jul 

Goodding’s phacelia Phacelia pulchella var.

gooddingii

–/–/2.3/–/NE Inyo County; Arizona, Nevada, 

Utah 

Mohavean desert scrub on clay, often alkaline soils; 800-1000 meters 

Apr-Jun 

Chambers's physaria Physaria chambersii 

–/–/2.3/–/– Northern desert mountains in the 

Clark and Grapevine mountains 

Carbonate or rocky soils in pinyonjuniper woodland; 1,500–2,590 meters Apr–May 

Two-needle pinyon pine Pinus edulis 

–/–/3.3/–/NE San Bernardino County; eastern 

Nevada, Arizona 

Lower montane coniferous forest, pinyon-juniper woodland; 1300-2700 meters 

 

Small-flowered rice grass Piptatherum micranthum 

–/–/2.3/–/NE Inyo, Mono, and San Bernardino 

Counties, Idaho 

Pinyon-juniper woodland, on gravelly, carbonate substrates; 700-2950 meters 

Jun-Sep 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Parish's popcorn-flower Plagiobothrys parishii 

–/–/1B.1/–/– East of Sierra Nevada, Mojave 

desert: known from two occurrences at Rabbit Springs in San Bernardino Co. and north of Cartago in Inyo Co. 

Alkaline or mesic areas in Great Basin scrub or Joshua tree woodland; 750–1,400 meters 

Mar-Jun (uncommonly until Nov 

Desert popcorn-flower Plagiobothrys salsus

–/–/2.2/–/NE Inyo and Modoc Counties; Nevada, 

Oregon 

Alkaline playas; 700 meters May-Aug 

Thorny milkwort Polygala acanthoclada 

–/–/2.3/–/– Mojave Desert in Eagle and New 

York Mountains, Lucerne Valley; Utah, Arizona 

Joshua tree woodland, chenopod scrub, pinyon-juniper woodland; 760–2,285 meters 

May–Aug 

Notch-beaked milkwort Polygala heterorhyncha 

–/–/2.3/–/NE Inyo County: Funeral Mtns.; 

Nevada 

Mohavean desert scrub, on alkaline soils; 900-1600 meters 

Apr-May 

Narrow-leaved cottonwood Populus angustifolia 

–/–/2.2/–/NE Inyo and San Bernardino Counties; 

Arizona, Idaho, Nevada, Oregon 

Riparian forest; 1200-1800 meters Mar-Apr 

Parish’s alkali-grass Puccinellia parishii 

–/–/1B.1/–/W Known only from Rabbit Springs, 

Kern Co; widely disjunct localities in California,Arizona, New Mexico 

Alkaline springs and seeps; 700-1000 meters 

Apr-May 

Muir’s Raillardella Raillardiopsis muirii(syn. Carlquistia muirii) 

–/–/1B.3/–/– Fresno, Kern, Monterey, and Tulare 

Counties 

Montane chaparral, lower and upper montane coniferous forest; 1100-2500 meters 

Jul-Aug 

Abert’s sanvitalia Sanvitalia abertii

–/–/2.2/–/NE San Bernardino County; Arizona, 

Sonora (Mexico), Texas 

Pinyon-juniper woodland on carbonate derived soils; 1570-1800 meters 

Aug-Sep 

Many-flowered Schkuhria Schkuhria multiflora var. multiflora

–/–/2.3/–/– Eastern Mojave desert; Texas, New 

Mexico 

Sandy soils in pinyon-juniper woodland; 1,500–1,700 meters 

Sep–Oct 

Burro grass Scleropogon brevifolius 

–/–/2.3/–/NE San Bernardino County; Arizona, 

Nevada 

Mohavean desert scrub, in areas of decomposed granitic soils; 1585-1600 meters 

Oct 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

Mojave fish-hook cactus Sclerocactus polyancistrus 

–/–/4.2/–/– Inyo, Kern, and San Bernardino 

Counties, Nevada 

Joshua tree woodland, Mohavean desert scrub, usually on carbonate derived soils; 640-2320 meters 

Apr-Jul 

Southern skullcap Scutellaria bolanderissp. austromontana

–/–/1B.2/–/– San Bernardino Mountains, 

Peninsular Ranges, and adjacent Mojave desert in Riverside, San Bernardino*, and San Diego Counties 

Along streambanks in oak or pine woodland and chaparral, on gravelly soils; 600-2000 meters 

Jun-Aug 

Desert wing-fruit Selinocarpus nevadensis 

–/–/2.3/–/NE Inyo County: known from one 

occurrences in Kingston Range; Arizona, Nevada, Utah 

Rocky areas in Joshua tree woodland, Mohavean desert scrub; 1160-1250 meters 

Jun-Sep 

Rusby's desert mallow Sphaeralcea rusbyi var. eremicola

–/–/1B.2/S/NE Death Valley region, eastern Inyo 

County, Clark Mountains, northeastern San Bernadino County; 

Mojavean desert scrub, Joshua tree woodland; 975–1,500 meters 

May–Jun 

Piute Mtns. jewel-flower Streptanthus cordatusvar. piutensis

–/–/1B.2/ S/W Kern County Broadleaved upland forest, closed-cone 

coniferous forest, and pinyon-juniper woodland along roadbanks and cliffs, on metamorphic red clay soils; 1095-1735 meters 

May-Jul 

San Bernardino aster Symphotrichium defoliatum 

–/–/1B.2/–/– Riverside, Orange, Los Angeles, 

San Diego, Kern, Ventura, and southeastern San Bernardino Counties 

Wet areas within coastal scrub, cismontane woodland, lower montane coniferous forest, meadows, marshes, swamps, and valley/foothill grassland; 2-2040 meters 

Jul-Nov 

Holly-leaved tetracoccus Tetracoccus ilicifolius

–/–/1B.3/–/NE Inyo County: Death Valley Rocky areas in Mohavean desert scrub, 

on carbonate derived soils; 600-1830 meters 

May-Jun 

Dedecker’s Clover Trifolium dedeckerae(syn. T. macilentum var. 

dedeckerae) 

–/–/1B.3/S/W Eastern Sierras in Tulare and Inyo 

Counties,the White Mountains in Inyo County, south to Spanish Needle area in Kern County 

Rocky, gravelly slopes in variety of arid vegetation types including coniferous forest, pinyon-juniper woodland, and sagebrush scrub; 2100-3500 meters. 

Jun-Jul 

Plummer's woodsia Woodsia plummerae

–/–/2.2/–/NE Desert mountains; Texas, New 

Mexico 

Granitic or rocky soils in pinyon-juniper woodland; 1,600–2,000 meters 

May–Sep 
Common Name 

Scientific Name 

Federal/State/ CNPS/BLM/ HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

Blooming Period 

a Status explanations: 

Federal 

E = listed as endangered under the Federal Endangered Species Act. T = listed as threatened under the Federal Endangered Species Act. – = no listing. 

California State 

E = listed as endangered under the California Endangered Species Act. – = no listing. 

California Native Plant Society (CNPS) 

1B = List 1B species: rare, threatened, or endangered in California and elsewhere. 2 = List 2 species: rare, threatened, or endangered in California but more common elsewhere – = no listing. 

BLM 

S = plant species that are not on Federal or state lists as endangered, threatened, candidate, or proposed, but are designated 

Director for special management consideration 

– = no listing. 

HCP 

W = species covered by the West Mojave Habitat Conservation Plan NE = species covered by the Northern and Eastern Mojave Plan. – = no listing. 
Table 2: Special-Status Plants with Potential to Occur in the Vicinity of the DesertXpress Project: Nevada Por

Common Name Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Rough angelica Angelica scabrida 

–/–/S/C Endemic to Spring Mountains Mixed conifer communities near springs, in 

moist, gravelly soils of washes, ephemeral streams, gullies, montane slopes, avalanche chutes, wash margins in riparian woodland and shrubland; 2,012–2,804 meters 

Jun-A

Menzies’ anacolia moss Anacolia menziesii 

–/–/–/C Only Nevada occurence found in Red 

Rock Canyon, Clark County. 

A single location in pinyon-juniper and blackbrush habitat in the Spring Mountains at approximately 1600 meters. 

Not appli

Charleston pussytoes Antennaria soliceps 

–/–/S/C Endemic to Spring Mountains Alpine and bristlecone pine habitat on 

gravelly, open ridge slopes; 2,652–3,536 meters 

Jul-S

Sticky ringstem Anulocaulis leisolenus 

–/–/S/C Known primarily from Frenchman 

Mountain area east of Las Vegas and further east to Muddy Mountains and Gold Butte; Arizona, New Mexico, Texas 

Mojave desert scrub and salt desert scrub, on gypsiferous soils on rolling hills and terraces. 

Jun-O

Las Vegas bear poppyArctomecon californica 

–/FP/S/C Endemic to the eastern Mojave Desert 

in southeastern Nevada and northwestern Arizona. Majority of populations in Clark County, Nevada 

Primarily within Mojave desert scrub and salt desert scrub habitats on gypsum outcrops 

Feb-J

White bear poppy Arctomecon merriamii 

–/–/S/C Northeastern Mojave desert; southern 

Nevada 

Rocky soils in chenopod scrub, Mojavean desert scrub; 490–1,800 meters 

Apr-J

Rosy king sandwort Arenaria kingii ssp. rosea 

–/–/–/C Endemic to Spring Mountains Dry, rocky hillsides in bristlecone pine, 

mixed conifer fores on limestone and carbonate-derived substrates; 1,798– 2,896 meters 

Jun-A
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Clokey eggvetch Astragalus oophorus var.

clokeyanus 

–/–/–/C Spring Mountains in Clark County, 

Nevada Test Site and Belted Range in Nye County 

Pinyon-juniper and mixed conifer communities on moist to dry, often disturbed gravelly soils in openings of forests, shrublands, and woodlands. 

May-

Clokey milkvetch Astragalus aequalis 

–/–/–/C Endemic to Spring Mountains Pinyon-juniper, mixed conifer, and 

sagebrush habitats on flat to gently sloping sites with dry, gravelly soils of alluvial fans; 1,829–2,560 meters 

May-

Threecorner milkvetch Astragalus geyeri var.triquetrus 

–/–/–/C Endemic to southeastern Mojave 

Desert in Lincoln and Clark Counties in Nevada; Arizona 

Mojave desert scrub communities; sandy soils formed from sedimentary formations adjacent to Lake Mead and its tributary valleys in Clark County, NV. Associated with Aztec sandstone outcrops 

Feb-

Mojave milk-vetch Astragalus mohavensis var. mohavensis 

–/–/–/– Occurs in Clark and Nye counties, 

Nevada. 

Gravel soils on terraced hills and ledges, open slopes, and along washes in Mohavean desert scrub. 

May 

Spring Mountain milkvetch Astragalus remotus 

–/–/S/C Endemic to Spring Mountains Gravelly soils, rocky hillsides, and desert 

washes in pinyon-juniper, sagebrush, grassland, blackbrush, and Mojave desert scrub. 

Apr-M

Alkali mariposa lily Calochortus striatus 

–/–/S/C Western Mojave Desert, Kern, Los 

Angeles, San Bernardino, and Tulare Counties; Nevada 

Alkaline mesic soils in chaparral, chenopod scrub, Mohavean desert scrub; 70-1,595 meters 

Apr-J

Clokey paintbrush Castilleja martinii var.clokeyi 

–/–/–/C Inyo County; mountain ranges of 

southern Nevada: Sheep Range, Spring Mountains, and Quinn Canyon Range in Nye County 

Bristlecone pine and mixed conifer on dry gravelly slopes; 1,981–3,124 meters 

May-

Clokey thistle Cirsium clokeyi 

–/–/–/C Endemic to Spring Mountains Alpine, bristlecone pine, and mixed conifer 

communities on gravelly slopes, dry ridges, and around springs; 2,774–3,353 meters 

Jun-J
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Un-named moss Claopodium whippleanum

–/–/–/C Only Nevada occurence found in Red 

Rock Canyon, Clark County. 

Pinyon-juniper habitat at approximately 1,600 meters. 

Not appli

Las Vegas catseye Cryptantha insolita 

–/FP/S/– Known only from the Las Vegas Valley 

and adjacent lower slopes of the Spring Mountains. 

Alkaline clay flats and low hills in Mohavean desert scrub. 

May 

Un-named moss Dicranoweisia crispula

–/–/–/C Southernmost population of a 

widespread western North American species; found in Lee Canyon in the Spring Mountains, Clark County. 

Occurs on downed logs associated with mixed conifer and pinyon juniper. 

Not appli

Jaeger whitlowgrass Draba jaegeri 

–/–/S/C Endemic to Spring Mountains At or near the timberline in alpine and 

bristlecone pine communities in fell fields and talus rubble; 2,941–3,413 meters 

Jun-A

Charleston draba Draba paucifructa 

–/–/–/C Endemic to Spring Mountains At and above timberline in alpine and 

bristlecone pine communities in moist areas (e.g., seeps, late-lying snow drifts); 2,515–3,475 meters 

Jun-J

Sheep fleabane Erigeron ovinus 

–/–/S/– Known from Mount Irish and the 

Sheep and Groom ranges, in Clark and Nye Counties, Nevada. 

Crevices in carbonate cliffs and ridgeline outcrops in the pinyon-juniper and montane conifer habitats. 

JuneAugu

Inch high fleabane Erigeron uncialis ssp. 

conjugans 

–/–/–/C Endemic to southern Nevada in the 

Spring Mountains and Sheep Range 

Limestone cliffs (i.e., cracks in vertical faces) and boulders within bristlecone pine, mixed conifer, pinyon-juniper, and sagebrush communities; 2,194–3, 505 meters 

May-

Forked buckwheat Eriogonum bifurcatum 

–/–/S/C Inyo and San Bernardino Counties; 

Nevada 

Sandy soils in chenopod scrub; 700-810 meters 

Aug-
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Las Vegas buckwheat Eriognum corymbosum var. aureum 

–/–/S/– Known occurrences in Clark County, 

Nevada. 

On and near gypsum soils, often forming low mounds or outcrops in washes and drainages, or in areas of generally low relief; 579-1170 meters. 

Sep-

Sticky buckwheat Eriogonum viscidulum 

–/–/S/C Endemic to the eastern Mojave Desert 

in Clark and Lincoln Counties, Nevada; Arizona 

Loose, sandy soils in Mojavean desert scrub in low dunes, washes, beaches, and areas of aeolian accumulation; 457–762 meters 

Apr-J

Sticky greasebush Glossopetalon clokeyi 

–/–/–/C Endemic to Spring Mountains Cracks and crevices on northern side of 

vertical and near vertical limestone cliffs in mixed coniferous forest; 2,134–2,804 meters 

Jun-S

Pungent glossopetalon Glossopetalon pungens 

–/–/S/C San Bernardino County; Nevada Limestone soils in chaparral, pinyon-juniper 

woodland; 1675-2000 meters 

Apr-J

Smooth pungent greasebush Glossopetalon pungensvar. glabra

–/–/–/C Endemic to Mojave Desert mountains 

in San Bernadino County; Nevada 

Pinyon-juniper and sagebrush communities on limestone cliffs and rocky slopes; 1,219–1,981 meters 

Apr-J

Pungent dwarf greasbush Glossopetalon pungensvar. pungens

–/–/–/C Endemic to southern Nevada in the 

Spring Mountains and Sheep Range 

Pinyon-juniper and sagebrush communities on limestone cliffs and rocky slopes 

Apr-J

Red rock canyon aster Ionactis caelestis 

–/–/S/C Endemic to Red Rock Canyon in Clark 

County, Nevada. 

Open mixed conifer forest; occurs on rocky, sandstone outcrops within ponderosa pine - potential habitat includes approximately 6,400 acres of Red Rock escarpment in Aztec sandstone crevices. 

Jun-A
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Hidden ivesia Ivesia cryptocaulis 

–/–/–/C Endemic to the Spring Mountains, 

found only on Charleston Peak ridgeline, Mummy Mountain. 

Alpine at or just above tree line on talus and scree slopes, rocky ridge lines; 3600-4000 meters 

May-

Jaeger’s ivesia Ivesia jaegeri 

–/–/–/C Endemic to Spring Mountains, 

Nevada, and Clark Mountains in San Bernardino, California. 

Pinyon-juniper woodland, upper montane coniferous forest on carbonate, rocky substrates; 1830-3600 meters 

Jun-J

Hitchcock bladderpod Lesquerella hitchcockii 

–/–/–/C Charleston Peak area in Kyle and Lee 

Canyons; extends from Clark County north to central eastern Nevada in 

White Pine County. 

Alpine, bristlecone pine, and mixed conifer communities; on flat or sloping ground, talus slopes, dry ridges, and rocky hillsides; 2,730-3,800 meters 

Jun-A

Blue diamond cholla Opuntia whipplei var. multigeniculata

–/–/–/C Endemic to the Blue Diamond Hills 

west of Las Vegas, Nevada. 

Restricted to dry limestone hills, underlain by gypsum, occurring mostly on northfacing slopes and exposed ridges in Mohavean desert scrub. 

May 

Charleston pinewood lousewort Pedicularis semibarbatavar. charlestonensis

–/–/–/C Southern Nevada endemic, all of 

range within Clark County. 

Mixed conifer forest and bristlecone pine communities; 2800 - 3,300 meters 

May-

White-margined beardtongue Penstemon albomarginatus 

–/–/S/C San Bernardino County; Arizona, 

Nevada. 

Stabilized desert dunes, Mohavean desert scrub, on sandy soils; 640-1065 meters 

Mar-

Yellow twotone beardtongue beardtongue Penstemon bicolor ssp. bicolor

–/–/S/– Known from Clark County, Nevada. Calcareous or carbonate soils in washes, 

roadsides, rock crevices, outcrops, in creosote-bursage, blackbrush, mixedshrub, and lower juniper habitats. 

Apr-M
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Rosy twotone beardtongue Penstemon bicolor ssp. roseus

–/–/–/– Clark and Nye counties, Nevada; also 

in Arizona and California. 

Rocky calcareous, granitic, or volcanic soils in washes, roadsides, rockcrevices, in creosote-bursage, blackbrush, and mixedshrub habitats; 700-1500 meters 

Mar-

Charleston beardtongue Penstemon leiophyllusvar. keckii 

–/–/–/C Endemic to the Spring Mountains at 

high elevations, above and in upper Kyle and Lee Canyons 

Bristlecone pine and mixed conifer forest communities, aspen on gravelly or rocky slopes, or open meadows on ledges and talus slopes; 2,300 - 3,700 meters. 

Jun-A

Jaeger beardtongue Penstemon thompsoniae var. jaegeri

–/–/–/C Southern Nevada endemic, all of 

range in Clark county. 

Mixed conifer forest and pinyon-juniper woodlands on gravelly limestone banks and hillsides; 2,100 - 3,100 meters. 

May-

Parish's phacelia Phacelia parishii

–/–/S/C Western Mojave desert in 

northwestern San Bernadino County; Nevada 

Clay or alkaline soils in playas, Mohavean desert scrub; 540–1,200 meters 

Apr–

Clokey Mountain sage Salvia dorrii var. clokeyi

–/–/S/C Southern Nevada endemic: Spring 

Mountains and Sheep Range in Clark County. 

Bristlecone pine, mixed conifer, and pinyonjuniper communities typically on shallow gravelly soils derived from limestone, dolomites, and sandstone, along ridges and where bedrock outcrops occur; and in rocky slope drainages; 2,300 - 9,300 meters 

Jun-S

Clokey catchfly Silene clokeyi 

–/–/–/C Endemic to the Spring Mountains, 

known on Mummy Mountain and along the Charleston Peak ridge line. 

Alpine and bristlecone pine communities on fell-fields, steep eastern drop-offs of high ridge lines, and gently sloping plateaus; 3,800 - 3,800 meters. 

Jul-A

Charleston tansy Sphaeromeria compacta 

–/–/–/C Endemic to the Spring Mountains. 

Known on Mummy Mountain and along the Charleston Peak ridge line. 

Alpine and bristlecone pine, on talus and scree slopes, rocky ridge lines and slopes, and rock outcrops; 3,600 - 4,000 meters. 

Jul-A

Charleston kittentails Synthyris ranunculina 

–/–/–/C Endemic to the Spring Mountains. 

Known to occur in upper Kyle and Lee Canyons, from the vicinity of Mummy Mountain, and on the ridgeline in the vicinity of Griffith Peak. 

Alpine, bristlecone pine, and mixed conifer forest in high elevation springs and seeps and permanently damp areas; 2,800 - 3,900 meters 

Jun-S
Common Name 

Scientific Name 

Federal/State/ BLM/HCPa

Geographic Distribution/Floristic Province Habitat Requirements 

BlooPerio

Un-named moss Syntrichia princeps

–/–/–/C Common West Coast species with the 

only two Nevada collections from the Spring and Virgin Mountains, Clark County. 

Occurs in the pinyon-juniper zone at approximately 1,600 meters. 

Not appli

Charleston grounddaisy Townsendia jonesii var. tumulosa

–/–/S/C Southern Nevada endemic in the 

Spring Mountains, Sheep Mountains, and Sunnyside, Nye County. 

Bristlecone pine, mixed conifer, and pinyonjuniper communities on shallow gravelly soils along ridges, rocky outcrops, and slopes; 2,200 - 3,200 meters. 

May-

Limestone violet Viola purpurea var. charlestonensis

–/–/–/C Southwestern desert endemic, found 

primarily in the Sheep Mountains. 

Mixed conifer forest and pinyon-juniper communities; 2,200 - 3,200 meters. 

May-

a Status explanations: 

Federal 

– = no listing. 

Nevada State 

FP = Fully protected by the state of Nevada – = no listing. 

BLM 

S = plant species that are not on Federal or state lists as endangered, threatened, candidate, or proposed, but are designated 

by the BLM State Director for special management consideration 

– = no listing. 

HCP 

C = species listed as “Covered” by the Clark County Multiple Species Habitat Conservation Plan – = no listing. 
Table 3: Special-Status Wildlife Species with Potential to Occur in the Vicinity of the DesertXpress Project: C

Common and Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Invertebrates Shoshone cave whip-scorpion Hubbardia (Trithyreus) shoshonensis

--/--/S/NE Known only from Shoshone cave in the 

northern Mojave desert 

Occurs in and around wood debris in the warmer, humid regions of Shoshone cave

Fish Amargosa River pupfish Cyprinodon nevadensis amargosae

--/SSC/S/NE Found only in the Amargosa river in Death 

Valley National Park, Inyo County. 

Occurs in both pools and fast-moving areaof the river, with a fine silt, mud, and clay substrate. 

Saratoga springs pupfish Cyprinodon nevadensis nevadensis

--/SSC/--/-- Found in three open water ponds fed by 

Saratoga springs near the southern boundary of Death Valley National Park, Inyo County. 

Found in open water ponds surrounded by hydrophytic vegetation. 

Shoshone pupfish Cyprinodon nevadensis shoshone

--/SSC/--/NE Historically occurred in Shoshone spring and 

its outlet creek; its range is now restricted to a pond near the creek and occasionally in portions of the heavily modified outlet creek. 

Open water pond surrounded by hydrophivegetation. 

Mohave tui chub Gila bicolor mohavensis

E/E/--/W Historically occurred in the Mojave River, 

natural populations found also in Soda Spring at the Desert Studies Center, near Baker, California. Has been introduced into Lark Seep at the China Lake Naval Air Weapons Center, Camp Cady, and at the California Desert Information Center in Barstow. 

Found in deep pools and slough areas in Mojave River, also in relatively deep pondthat allow fish access to cool water. Often found in association with aquatic ditchgras(Ruppia maritima). 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Arroyo chub Gila orcutti

--/SSC/--/-- Although native to the Los Angeles, San 

Gabriel, San Luis Rey, Santa Ana, and Santa Margarita rivers (as well as their tributaries), they have been successfully introduced into the Santa Ynez, Santa Maria, Cuyama, and Mojave river systems. 

Habitat generalists but prefer sand or mud bottoms in cool, clear water with abundanvegetation. 

Amargosa Canyon Speckled Dace Rhinichthys osculus

--/SSC/S/NE Found in the Armargosa river, Willow creek, 

and Willow reservoir in southern Inyo County. 

Prefers relatively deep pools with slowmoving water. 

Amphibians Inyo Mountains slender salamanderBatrachoseps campi 

--/SSC/S/NE Inyo mountains, Inyo County, from around 

1,800-8,600 feet 

Found in isolated spring and stream areas below the pinon-juniper belt, under stones and in crevices near water, surrounding slopes are arid 

Black toad Bufo exsul

--/T, FP/--/NE Deep Springs Valley, between Inyo and White 

Mtns., Inyo County, at around 5,000 feet 

Found in springs, water courses, wet meadows, and marshes of grass, sedge, dwarf bulrush and watercress. Highly aqubut found up to 40 feet from nearest wate

California redlegged frog Rana aurora draytoni

T/SSC/--/-- Found along the coast and coastal mountain 

ranges of California from Marin County to San Diego County and in the Sierra Nevada from Tehema County to Fresno County. 

Permanent and semipermanent aquatic habitats, such as creeks and cold-water ponds, with emergent and submergent vegetation. May estivate in rodent burrows cracks during dry periods. 

Reptiles Southwestern pond turtle Clemmys marmorata pallida

--/SSC/S/W Occurs along the central coast of California 

east to the Sierra Nevada and along the southern California coast inland to the Mojave and Sonora Deserts; range overlaps with that of the northwestern pond turtle throughout the Delta and in the Central Valley 

Woodlands, grasslands, and open forestsaquatic habitats, such as ponds, marshesstreams, with rocky or muddy bottoms and vegetation for cover and food 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Desert tortoise Gopherus agassizii

T/T/--/W, NE Southern California deserts in Inyo, San 

Bernardino, Kern, Los Angeles, Riverside, San Diego, and Imperial Counties 

Desert areas from 300 to 900 feet with saloam to gravelly soils for digging dens; favcreosote and cactus scrub habitats with hdensities of annual blooms in spring for feeding 

Panamint alligator lizard Gerrhonotus (=Elgaria) panamintinus

--/SSC/S/W, NE Found in the Panamint Mountains, the White 

Mountains, the Inyo Mountains, the Nelson Mountains, and the Cosos Mountains of Inyo and Mono Counties 

Inhabits desert riparian areas and rocky canyons near seeps or springs, generally association with creosote, sagebrush, and pinyon-juniper habitats. 

Banded gila monster (population west of Colorado River) Heloderma suspectum cinctum

--/SSC/S/W, NE Eastern San Bernardino and Riverside 

Counties 

Rocky areas in association with desert scand semi-desert grassland; found from 0-3600 feet. 

San Diego horned lizard Phrynosoma coronatum blainvillii

--/SSC/S/W, NE Transverse and Peninsular Ranges from 

Ventura County through San Diego County 

Occurs in a variety of habitats, from brushlands to coniferous forests; requires open areas for sunning 

Mojave fringe-toed lizard Uma scoparia

--/SSC/S/W, NE Extreme northeastern Los Angeles, San 

Bernardino, western Riverside, and Inyo counties 

Creosote bush scrub in areas of aeolian sand, typically no coarser than 0.75 mm in diameter 

Birds American white pelican Pelecanus erythrorhynchos(nesting colony) 

--/SSC/--/W Historically, nested at large lakes throughout 

California; only breeding colonies in the state occur at lower Klamath National Wildlife Refuge, Siskiyou County, and at Clear Lake, Modoc County; winters along the California coast from southern Sonoma County to Baja. 

Freshwater lakes with islands for breedinginhabits river sloughs, freshwater marshessalt ponds, and coastal bays during the reof the year 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Double-crested cormorant Phalacrocorax auritus (rookery site) 

--/SSC/--/W Winters along the entire California coast and 

inland over the Coast Ranges into the Central Valley from Tehama County to Fresno County; a permanent resident along the coast from Monterey County to San Diego County, along the Colorado River, Imperial, Riverside, Kern and King Co.s, and the islands off San Francisco; breeds in Siskiyou, Modoc, Lassen, Shasta, Plumas, and Mono Co.s; also breeds in the San Francisco Bay Area and in Yolo and Sacramento Counties 

Rocky coastlines, beaches, inland ponds, and lakes; needs open water for foraging, and nests in riparian forests or on protecteislands, usually in snags 

Western least bittern Ixobrychus exilis hesperis (nesting) 

--/SSC/--/NE Permanent residents along the Colorado River 

and Salton Sea and in isolated areas in Imperial, San Diego, and Los Angeles Counties; summers at Tulare Lake and parts of Fresno, Merced, Madera, Siskiyou, and Modoc Counties; and in marshlands of Yolo, Sutter 

Marshes and along pond edges, where tuand rushes can provide cover; nests are blow in the tules over the water 

White-faced ibis Plegadis chihi(rookery site) 

--/SSC/--/NE Both resident and winter populations on the 

Salton Sea and in isolated areas in Imperial, San Diego, Ventura, and Fresno Counties; breeds at Honey Lake, Lassen County, at Mendota Wildlife Management Area, Fresno County, and near Woodland, Yolo County. 

Prefers freshwater marshes with tules, cattails, and rushes, but may nest in trees and forage in flooded agricultural fields, especially flooded rice fields 

Northern harrier Circus cyaneus

--/SSC/--/W, NE Occurs throughout lowland California. Has 

been recorded in fall at high elevations 

Grasslands, meadows, marshes, and seasonal and agricultural wetlands 

Golden eagle Aquila chrysaetos

PR/SSC,FP/--/NE Foothills and mountains throughout California. 

Uncommon nonbreeding visitor to lowlands such as the Central Valley 

Nest on cliffs and escarpments or in tall troverlooking open country. Forages in anngrasslands, chaparral, and oak woodlands with plentiful medium and large-sized mammals 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Bald eagle Haliaeetus leucocephalus

T/E/--/W Nests in Siskiyou, Modoc, Trinity, Shasta, 

Lassen, Plumas, Butte, Tehama, Lake, and Mendocino Counties and in the Lake Tahoe Basin. Reintroduced into central coast. Winter range includes the rest of California, except the southeastern deserts, very high altitudes in the Sierra Nevada, and east of the Sierra Nevada south of Mono County 

In western North America, nests and roosconiferous forests within 1 mile of a lake, reservoir, stream, or the ocean 

Sharp-shinned hawk Accipiter striatus

--/SSC/--/W Permanent resident in the Sierra Nevada, 

Cascade, Klamath, and north Coast Ranges at mid elevations and along the coast in Marin, San Francisco, San Mateo, Santa Cruz, and Monterey Counties. Winters over the rest of the state except at very high elevations 

Dense canopy ponderosa pine or mixedconifer forest and riparian habitats 

Cooper’s hawk Accipiter cooperii

--/SSC/--/W, NE Throughout California except high altitudes in 

the Sierra Nevada. Winters in the Central Valley, southeastern desert regions, and plains east of the Cascade Range 

Nests in a wide variety of habitat types, froriparian woodlands and digger pine-oak woodlands through mixed conifer forests 

Swainson’s hawk Buteo swainsoni

--/T/--/W, NE Lower Sacramento and San Joaquin Valleys, 

the Klamath Basin, and Butte Valley. Highest nesting densities occur near Davis and Woodland, Yolo County 

Nests in oaks or cottonwoods in or near riparian habitats. Forages in grasslands, irrigated pastures, and grain fields 

Ferruginous hawk Buteo regalis

--/SSC/--/W, NE Does not nest in California; winter visitor along 

the coast from Sonoma County to San Diego County, east-ward to the Sierra Nevada foothills and south-eastern deserts, the InyoWhite Mountains, the plains east of the Cascade Range, and Siskiyou County 

Open terrain in plains and foothills where ground squirrels and other prey are availa
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Prairie falcon Falco mexicanus

--/SSC/--/NE Permanent resident in the south Coast, 

Transverse, Peninsular, and northern Cascade Ranges, the southeastern deserts, Inyo-White Mountains, foothills surrounding the Central Valley, and in the Sierra Nevada in Modoc, Lassen, and Plumas Counties. Winters in the Central Valley, along the coast from Santa Barbara County to San Diego County, and in Marin, Sonoma, Humboldt, Del Norte, and Inyo Counties 

Nests on cliffs or escarpments, usually overlooking dry, open terrain or uplands 

Yuma clapper rail Rallus longirostris yumanensis

E/E/--/W Permanent resident in the Salton Sea and 

along the Colorado River in San Bernardino, Riverside, and Imperial Counties 

Freshwater marshes and brackish marsherequires regenerating marsh for foraging amature cattail and bulrush for nesting 

Mountain plover Charadrius montanus

PT/SSC/--/W Does not breed in California; in winter, found in 

the Central Valley south of Yuba County, along the coast in parts of San Luis Obispo, Santa Barbara, Ventura, and San Diego Counties; parts of Imperial, Riverside, Kern, and Los Angeles Counties 

Occupies open plains or rolling hills with sgrasses or very sparse vegetation; nearby bodies of water are not needed; may use newly plowed or sprouting grainfields 

Western snowy plover (inland population) Charadrius alexandrinus nivosus

--/SSC/--/W, NE Nests at inland lakes throughout northeastern, 

central, and southern California, including Mono Lake and Salton Sea 

Barren to sparsely vegetated ground at alkaline or saline lakes, reservoirs, ponds riverine sand bars; also along sewage, saevaporation, and agricultural waste-water ponds 

Long-billed curlew Numenius americanus

--/SSC/--/W Nests in northeastern California in Modoc, 

Siskiyou, and Lassen Counties. Winters along the coast and in interior valleys west of Sierra Nevada 

Nests in high-elevation grasslands adjaceto lakes or marshes. During migration and winter; frequents coastal beaches and mudflats and interior grasslands and agricultural fields 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats California gull Larus californicus(nesting colony) 

--/SSC/--/W Winters along the Pacific coast from British 

Columbia to Mexico; in the interior of California, it frequents the Sacramento River Delta and Central Valley, the plains east of the Cascade Range, northern Plumas County and southwestern Mono County. A small nesting colony has also become established along the southern shores of the Salton Sea in Imperial and Riverside Counties 

Forages in a variety of habitats, including beaches, mudflats, freshwater and alkali marshes, rivers, lakes, and urban areas; nests colonially on islands isolated from mainland predators 

Western yellowbilled cuckoo Coccyzus americanus occidentalis 

--/E/--/W, NE Nests along the upper Sacramento, lower 

Feather, south fork of the Kern, Amargosa, Santa Ana, and Colorado Rivers 

Wide, dense riparian forests with a thick understory of willows for nesting; sites witdominant cottonwood overstory are preferfor foraging; may avoid valley-oak riparian habitats where scrub jays are abundant 

Western burrowing owl Athene cunicularia 

hypugea

--/SSC/S/W, NE Lowlands throughout California, including the 

Central Valley, northeastern plateau, southeastern deserts, and coastal areas. Rare along south coast 

Level, open, dry, heavily grazed or low stature grassland or desert vegetation witavailable burrows 

Long-eared owl Asio otus

--/SSC/--/W, NE Permanent resident east of the Cascade 

Range from Placer County north to the Oregon border, east of the Sierra Nevada from Alpine County to Inyo County. Scattered breeding populations along the coast and in southeastern California. Winters throughout the Central Valley and southeastern California

Nests in abandoned crow, hawk, or magpnests, usually in dense riparian stands of willows, cottonwoods, live oaks, or conifer

Vaux’s swift Chaetura vauxi

--/SSC/--/W Coastal belt from Del Norte County south to 

Santa Cruz County and in mid elevation forests of the Sierra Nevada and Cascade Range 

Nests in hollow, burned-out tree trunks in large conifers 

Brown-crested flycatcher Myiarchus tyrannulus

--/SSC/--/W, NE Known to nest in California along the Colorado 

and Mojave rivers as well as a few other localities scattered in the southern deserts 

Breeds in cottonwood and/or willow ripariaforests dominated by large trees. Has beeknown to nest in residential areas with largtrees near the Colorado river. Nests in trecavities made by excavating species such woodpeckers. 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Vermilion flycatcher Pyrocephalus rubinus (nesting) 

--/SSC/--/ W, NE A rare, year-long resident along the Lower 

Colorado River, especially near Blythe, Riverside County. A few breed at Morongo Valley and the Mojave Narrows, San Bernardino County 

Nests in desert riparian habitats dominateby cottonwood, willow, and mesquite trees adjacent to open areas 

Southwestern willow flycatcher Empidonax traillii extimus

E/E/--/W, NE Breeds in coastal southern California in the 

Los Angeles Basin, the San Bernardino/Riverside area, and San Diego County; no longer breeds along the Colorado River and is known to exist only in eight widely disjunct nesting populations 

Densely vegetated riparian habitat with streamside associations of cottonwoods awillows 

Bank swallow Riparia riparia

--/T/--/W Occurs along the Sacramento River from 

Tahama County to Sacramento County, along the Feather and lower American Rivers, in the Owens Valley; and in the plains east of the Cascade Range in Modoc, Lassen, and northern Siskiyou Counties. Small populations near the coast from San Francisco County to Monterey County. Deemed extirpated from southern California 

Nests in bluffs or banks, usually adjacent water, where the soil consists of sand or sandy loam 

Le Conte’s thrasher Toxostoma lecontei

--/SSC/--/W, NE Resident of the deserts of southern California 

from Inyo County south to the Mexican border 

Occurs in desert scrub habitats, open washes, and in Joshua tree habitat 

Bendire’s thrasher Toxostoma bendirei

--/SSC/S/W, NE Breeding distribution occurs exclusively in the 

Mojave Desert 

Habitat in the California portion of the Mojis characterized by Joshua trees and/or otyucca spp. and cholla cactus. 

Crissale thrasher Toxostoma crissale (=dorsale)

--/SSC/--/NE Occurs throughout southeastern deserts but 

most common along the Lower Colorado river 

Inhabits the dense understory of desert riparian and desert wash habitats. In the eastern Mojave Desert of San Bernardino and Inyo counties, occurs in shrubs of washes in pinyon-juniper habitats 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Loggerhead shrike Lanius ludovicianus

--/SSC/--/W Resident and winter visitor in lowlands and 

foothills throughout California. Rare on coastal slope north of Mendocino County, occurring only in winter 

Prefers open habitats with scattered shrubtrees, posts, fences, utility lines, or other perches 

Gray vireo Vireo vicinior(nesting) 

--/SC/S/W, NE Summer resident throughout the mountains of 

the southeastern deserts from 600-2,000 m including the northeastern slopes of the San Bernardino Mountains, the San Jacinto Mountains, and the southern slopes of the Laguna Mountains 

Breeds in arid, shrub covered slopes with moderate cover and small trees including oaks, pinyon pine, and juniper 

Least Bell’s vireo Vireo bellii pusillus

E/E/--/W, NE Small populations remain in southern Inyo, 

southern San Bernardino, Riverside, San Diego, Orange, Los Angeles, Ventura, and Santa Barbara Counties 

Riparian thickets either near water or in drportions of river bottoms; nests along marof bushes and forages low to the ground; may also be found using mesquite and arweed in desert canyons 

Hepatic tanager Piranga flava

--/SSC/--/W, NE Breeds in the mountain ranges of eastern San 

Bernardino County 

Often found in mixed montane woodlands association with oak and pine trees, but aobserved breeding in arid coniferous woodland. 

Summer tanager Piranga rubra(nesting) 

--/SSC/--/W, NE Along the Colorado river valley and in 

scattered locations inland in the desert, including northeastern Los Angeles county 

Breeds in mature, desert riparian habitats dominated by cottonwood and willow 

Yellow-breasted chat Icteria virens

--/SSC/--/W, NE Nests locally in coastal mountains and Sierra 

Nevada foothills, east of the Cascades in northern California, along the Colorado river, and very locally inland in southern California 

Nests in dense riparian habitats dominateby willows, alders, Oregon ash, tall weedsblackberry vines, and grapevines 

Yellow warbler Dendroica petechia brewsteri (nesting) 

--/SSC/--/W, NE Nests over all of California except the Central 

Valley, the Mojave Desert region, and high altitudes and the eastern side of the Sierra Nevada. Winters along the Colorado River and in parts of Imperial and Riverside Counties. Two small permanent populations in San Diego and Santa Barbara Counties 

Nests in riparian areas dominated by willocottonwoods, sycamores, or alders or in mature chaparral; may also use oaks, conifers, and urban areas near stream courses 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Virginia’s warbler Vermivora virginiae

--/SSC/--/W, NE Five breeding populations in California: one on 

the border of Mono and Inyo Counties and four in San Bernardino County 

Desert mountains with open stands of pinpine and white fir; scattered shrubs requirfor cover on the ground 

Inyo California towhee Pipilo crissalis cromophilus

T/E/--/W, NE Restricted to a 95-square-mile area of the 

Mojave Desert west of Death Valley, Inyo County 

Nests in dense stands of riparian vegetatiespecially arroyo willow and desert olive; forages in sparsely vegetated desert scru

California grayheaded junco Junco hyemalis caniceps (nesting) 

--/SSC/--/W,NE Nests in the White Mountains, Grapevine 

Mountains, and Clark Mountain of San Bernardino County 

Observed breeding in association with pinpine and juniper woodlands 

Tricolored blackbird Agelaius tricolor

--/SSC/S/W, NE Permanent resident in the Central Valley from 

Butte County to Kern County. Breeds at scattered coastal locations from Marin County south to San Diego County; and at scattered locations in Lake, Sonoma, and Solano Counties. Rare nester in Siskiyou, Modoc, and Lassen Counties 

Nests in dense colonies in emergent marsvegetation, such as tules and cattails, or upland sites with blackberries, nettles, thistles, and grainfields. Habitat must be large enough to support 50 pairs. Probabrequires water at or near the nesting colon

Mammals Bats Pallid bat Antrozous pallidus

--/SSC/S/W, NE Occurs throughout California except the high 

Sierra from Shasta to Kern County and the northwest coast, primarily at lower and mid elevations 

Occurs in a variety of habitats from desert coniferous forest. Most closely associated with oak, yellow pine, redwood, and giant sequoia habitats in northern California and oak woodland, grassland, and desert scrusouthern California. Relies heavily on treefor roosts 

Pacific Townsend’s (=western) bigeared bat Corynorhinus townsendii townsendii

--/SSC/S/W, NE Coastal regions from Del Norte County south 

to Santa Barbara County 

Roosts in caves, tunnels, mines, and dark attics of abandoned buildings. Very sensito disturbances and may abandon a roost after one onsite visit 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Greater western mastiff bat Eumops perotis californicus

--/SSC/--/W, NE Occurs along the western Sierra primarilly at 

low to mid elevations and widely distributed throughout the southern coast ranges. Recent 

surveys have detected the species north to the Oregon border 

Found in a wide variety of habitats from desert scrub to montane conifer. Roosts abreeds in deep, narrow rock crevices, but may also use crevices in trees, buildings, tunnels 

Spotted bat Euderma maculata

--/SSC/S/W, NE Occurs throughout eastern and southern 

California, the central Sierra Nevada, and the Sierra Nevada foothills bordering the San Joaquin Valley. One recent record from northern California in the Trinity Alps. Probably occurs in other portions of the state where habitat is suitable 

Found in a wide variety of habitats from lodesert to high elevation coniferous forest, primarilly in areas associated with cliff and canyon habitat. Females may favor ponderosa pine forests during reproductio

Silver-haired bat Lasionycteris noctivagans

--/SSC/--/-- Occurs along the coast and inland from 

Monterey and Fresno northward into the Pacific Northwest. Has been known to winter in xeric areas of southern California and southward into Mexico 

Roosts in tree cavities, under bark, or in osnags in coniferous and deciduous forest. Forages over water or in openings in the forest. 

Hoary bat Lasiurus cinereus

--/SSC/--/-- Occurs in wooded habitat throughout California 

except at higher elevations in the Sierra Nevada Mountain Range 

Roosts under foliage in trees, in cavities, ounder bark in heavily forest areas of both coniferous and deciduous woodland. 

California leafnosed bat Lasiurus cinereus

SC/SSC/S* Found throughout Imperial County and in the 

eastern portions of San Bernardino, Riverside, and San Diego 

Day roosts are usually large caves or deemine tunnels with high ceilings and humid conditions. 

Western smallfooted myotis Myotis ciliolabrum

--/--/S/NE Occurs in the Sierra Nevada, south Coast, 

Transverse, and Peninsular Ranges, and in the Great Basin 

Open stands in forests and woodlands, as well as shrub lands and desert scrub. Usecaves, crevices, trees, and abandoned buildings 

Long-eared myotis Myotis evotis

--/--/S/NE Occurs throughout California except the 

southeastern deserts and the Central Valley 

Occurs primarily in high elevation coniferoforests, but also found in mixed hardwood/conifer, high desert, and humid coastal conifer habitats 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Fringed myotis Myotis thysanodes

--/--/S/W, NE Occurs throughout California except the 

southeastern deserts and the Central Valley 

Found in a wide variety of habitats from lodesert scrub to high elevation coniferous forests. Day and night roosts in caves, mines, trees, buildings, and rock crevices 

Cave myotis Myotis velifer

--/SSC/S/-- Found in the Colorado River Valley and 

adjacent mountain ranges in San Bernardino, Riverside, and Imperial Counties 

Typically roosts in caves, but may also usmines and buildings; hibernation and nurscaves are relatively warm and humid with standing or running water. 

Long-legged myotis Myotis volans --/--/--/W 

Found in the mountains of the Mojave Desert, central San Diego County, the Coast Ranges, and the Tehachapis. 

Roost in abandoned buildings, mines, roccrevices and trees in coniferous montane forest habitats. 

Yuma myotis Myotis yumanensis --/--/S/-- 

Common and widespread throughout most of California except the Colorado and Mojave deserts 

Found in a wide variety of habitats from selevel to 11,000 ft., but uncommon above 8,000 ft. Optimal habitat is open forests anwoodlands near water bodies 

Pocketed free-tailed bat Nyctinomops femorosaccus

--/SSC/--/W, NE 

Occurs in Riverside, San Diego, and Imperial Counties 

Favors rocky desert areas with high cliffs rock outcrops for roosts; roosts in crevicesreproduces in crevices, caverns, or buildin

Rodents Pallid San Diego pocket mouse Chaetodipus (=Perognathus) fallax pallidus

--/SSC/-- San Diego County, Riverside County west of 

Palm Springs, San Bernardino County from Cactus Flat and Oro Grande east to Twenty Nine-Palms 

Occurs in arid coastal and desert habitats including coastal scrub, chaparral, chamisredshank, desert scrub, pinyon-juniper, anannual grassland 

Mojave River vole Microtus californicus mohavensis

--/SSC/--/W Mojave River near Victorville and Oro Grande, 

San Bernardino County 

Weedy herbaceous growth in wet areas along river 

Tehachapi pocket mouse Perognathus alticola inexpectatus

--/SSC/--/W Known only near Tehachapi Pass and Mount 

Pios in Kern and Los Angeles Counties 

Annual grassland and desert scrub communities from 3,500 to 6,000 feet 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats Yellow-eared pocket mouse Perognathus xanthonotus

--/--/S/W Restricted to a single locality near Walker 

Pass, Kern County 

Pinyon-juniper, Joshua Tree and mixed montane chaparral habitats 

Mohave ground squirrel Spermophilus mohavensis

--/T/--/W, NE Southwestern Inyo County, eastern Kern 

County, northwestern San Bernardino County, and northeastern Los Angeles County 

Saltbush, alkali desert, and creosote bush scrub at elevations from 1,800 to 5,000 fe

Argus Mountain Kangaroo Rat Dipodomys panamintinus argusensis

--/--/--/W Observed on the western slopes of the Argus 

Mountains in Inyo County 

Creosote scrub, saltbush scrub, Joshua trand juniper woodland habitats, generally ocourse sandy and gravelly soils. 

Mustelids American badger

Taxidea taxidus

–/SSC/--/-- Found throughout most of California except in 

the northern North Coast area. Suitable habitat is characterized by herbaceous, shrub, and open stages of most habitats with dry, friable soils. 

Dig burrows in friable soils for cover. Frequently uses old burrows. 

Ungulates Nelson’s (Desert) bighorn sheep Ovis canadensis nelsoni 

--/ FP/S/W, NE Desert mountain ranges from white mountains 

of Mono & Inyo Co. south to San Bernadino Mtns and southeast to the Mexican border 

Pinyon-juniper, desert scrub and sagebrushabitats 
Common and 

Scientific Name Federal/State/BLM/HCPa California Distribution Habitats a Status explanations: 

Federal 

E = listed as endangered under the Federal Endangered Species Act. T = listed as threatened under the Federal Endangered Species Act. PE = proposed for Federal listing as endangered under the Federal Endangered Species Act. PT = proposed for Federal listing as threatened under the Federal Endangered Species Act. C = species for which USFWS has on file sufficient information on biological vulnerability and threat(s) to support issuance of a 

issuance of the proposed rule is precluded. 

FS = U.S. Forest Service sensitive species (Region). -- = no listing. 

State 

E = listed as endangered under the California Endangered Species Act. T = listed as threatened under the California Endangered Species Act. FP = fully protected under the California Fish and Game Code. 

SSC = species of special concern in California. 

-- = no listing. 

BLM 

S = listed as sensitive by the Bureau of Land Management. -- = no listing. 

HCP 

W = species covered by the West Mojave Habitat Conservation Plan. NE = species covered by the Northern and Eastern Mojave Plan -- = no listing. 
Table 4. Special-Status Wildlife Species with Potential to Occur in the Vicinity of the DesertXpress Project: N

Common and Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Invertebrates Gastropods Spring Mountains springsnail Pyrgulopsis deaconi

--/--/S/C Endemic to southern Nevada, with 

known occurrences at Willow and Red Springs in Red Rock Canyon NCA, and Kiup Spring in the Spring Mountains. 

Found in spring and seep habitats. No 

arera

Southern Nevada springsnail Pyrgulopsis turbatrix

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. Found only on the eastern slopes of the Spring Mountains. 

Found in spring and seep habitats. No 

arera

Insects Spring Mountains acastus checkerspot Chlosyne acastus robusta

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. 

Mixed conifer and pinyon-juniper; also found in sagebrush. Larval host plants previously believed to be Chrysothamnus, however, current research indicates other species may be used. The nectar species is believed to be Viguiera multiflora. 

No arera

Dark blue butterfly Euphilotes enoptes ssp.

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. 

Mixed conifer and pinyon-juniper; also uses sagebrush and wet areas near springs. Larval host plants: Eriogonum umbellatum var. subaridum; known nectar species: E. umbellatum. Found at mid elevations (5,900 to 8,200 feet)

No arera

Morand’s checkerspot butterfly Euphydryas anicia morandi

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. 

Primarily meadows within bristlecone pine; also occurs in mixed conifer and pinyon-juniper forest. Larval host plants: Castilleja linearifolia and C. martinii var. clokeyi. Known nectar species: Taraxacum officinale, Erysimum asperum.

No arera
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Spring Mountains comma skipper Hesperia comma mojavensis

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. 

Primarily bristlecone pine; also occurs in mixed conifer, pinyon-juniper, sagebrush, and wet areas near highelevation springs. Larval host plants: perennial grasses/Carex, which are common in the Spring Mountains. Known nectar species: Cirsium sp., Chaenactis douglasii, Apocynum androsaemifolium, Chrysothamnus sp., Taraxacum officinale, Sarcostemma cynanchoides, Penstemon palmeri, Erysimum asperum. 

No arera

Spring Mountains icarioides blue Icaricia icarioides austinorum

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada. 

Open stands and meadows, primarily in bristlecone pine and mixed conifer; also uses pinyon-juniper, sagebrush, and wet areas near high-elevation springs. Larval host plants: Lupinus argenteus. Known nectar species: Eriogonum umbellatum, Chaenactis douglasii, Potentilla sp., Lupinus sp., Linum lewisii, Melilotus albus, Erigeron sp., Senecio douglasii. 

No arera

Mount Charleston blue butterfly Icaricia shasta charlestonensis

--/--/--/C Endemic to the Spring Mountains in 

southern Nevada. 

Primarily bristlecone pine, but also in mixed conifer between 6,000 and 8,000 ft. Known larval host species: Astragalus calycosus var. mancus, which prefers shallow rocky soils. Nectar plants: Hymenoxys lemmonii, Aster sp., and Eriogonum sp. 

No arera

Nevada admiral Limenitus weidemeyerii nevadae

--/--/S/C Endemic to southern Nevada, 

specifically the Spring and Sheep Mountains 

Primarily bristlecone pine, but also mixed conifer, pinyonjuniper, and wet areas near high-elevation springs. Larval host plants: Populus tremuloides, Salix sp., Prunus virginiana, and Amelanchier utahensis, and possibly Populus angustifolia and/or P. fremontii. Nectar species: Eriodictyon angustifolium, Cirsium sp., Clematis ligusticifolia, Marrubium vulgare 

No arera

Carole’s silverspot butterfly Speyeria zerene carolae

--/--/S/C Endemic to the Spring Mountains in 

southern Nevada 

Primarily bristlecone pine; also occurs in mixed conifer, pinyon-juniper, and sagebrush. Larval host plants: Viola purpurea var. charlestonensis. Known nectar species: Cirsium arizonicum, Erysimum asperum, Apocynum androsaemifolium, Rosa woodsii, Angelica scabrida, Chaenactis sp., Lupinus sp. 

No arera
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Vertebrates Amphibians Arizona toad Bufo microscaphus microscaphus

--/--/S/E Along the Virgin and Muddy Rivers, 

Meadow Valley Wash, and the Colorado River to Hoover Dam. 

Inhabits a range of habitats including riparian washes, rocky streams, basins, agricultural, and urban areas up to 6,000 ft. They burrow in loose gravelly areas or sandy banks and range up to 500 ft from water. 

No arera

Relict leopard frog Rana onca

--/--/--/C Endemic to Clark County. Clark 

County populations remain within small areas on National Park Service Lands, in the Rogers/Blue Point Springs area south of Overton, and in springs in Black Canyon below Hoover Dam. 

Desert riparian habitat along permanent streams, tributaries, and springs and other water impoundments up to 2,500 ft elevation. 

No arera

Reptiles Banded gecko Coleonyx variegatus

--/--/--/C Endemic to the southwestern 

deserts, found in southern Nevada; widespread throughout Clark County. 

Inhabits blackbrush, Mojave desert scrub, mesquite, and catclaw acacia habitats. Less commonly found in pinyonjuniper, sagebrush, and desert riparian habitats. Rocks, 

crevices, fallen logs, limbs, and rubbish piles provide shelter. 

Poocstuare

Great Basin collared lizard Crotaphytus insularis bicinctores

--/--/--/C Endemic to the Great Basin and 

southwestern deserts, found in western and southern Nevada; widespread throughout Clark County. 

Found in Mojave desert scrub, salt desert scrub, mesquite, catclaw acacia, desert riparian, blackbrush, sagebrush, and pinyon-juniper habitats in rocky terrain: arroyos, hill slopes, washes with sparse vegetative cover, up to 7,500 ft. 

Poocstuare

Desert iguana Dipsosaurus dorsalis

--/--/--/C Found in the southwestern deserts 

south into Mexico. Species is found in southern Nevada; widespread throughout Clark County. 

Mojave desert scrub flats with sandy hummocks, mesquite, and salt desert scrub habitats are most common, but also found in rocky stream beds, on bajadas, and in rocky hilly areas below 5,000 feet. 

Poocstuare
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Western red-tailed skink Eumeces gilberti rubricaudatus

--/--/--/C Found in southern Nevada in 

isolated montane populations (Spring, Sheep, and Newberry Mountains) as well as in the eastern Mojave Desert in limited montane habitats. 

Inhabits pinyon-juniper and riparian habitat including canyon bottoms near water. Less common in higherelevation habitats including mixed conifer, sagebrush, blackbrush, mesquite, catclaw acacia, and desert riparian habitats in rocky areas or where logs or leaf cover are proximate to permanent or intermittent streams. 

No arera

Large-spotted leopard lizard Gambelia wislizenii wislizenii

--/--/--/C Endemic to the Great Basin and 

southwestern deserts, widespread throughout Clark County. 

Primarily inhabits Mojave desert scrub and salt desert scrub, but also occurs in blackbrush, sagebrush, and pinyon-juniper habitats. Prefers hardpan, gravelly, or sandy open ground where vegetation is sparse or in small clumps; below 6,000 ft. 

Poocstuare

Desert tortoise Gopherus agassizii

T/P/--/C Endemic to the Mojave desert, found 

in lowland desert habitat in Clark County. 

Desert areas from 300 to 4500 feet with sandy loam to gravelly soils for digging dens; favors creosote and cactus scrub habitats with high densities of annual blooms in spring for feeding 

Poocstuare

Banded gila monster (population west of Colorado River) Heloderma suspectum cinctum

--/--/S/E Found in the eastern Mojave and 

northern Sonoran deserts, with historical records occurring in Clark and Lincoln Counties. 

Rocky areas in association with desert scrub and semidesert grassland; found from 0-3600 feet. Po

ocarepa

Western chuckwalla Sauromalus obesus obesus

--/--/--/C Endemic to the Mojave and Sonoran 

deserts, found in southern Nevada; widespread throughout Clark County. 

Found within desert scrub including Mojave desert scrub, blackbrush, salt desert scrub, mesquite, and catclaw acacia on areas with rocky cover or boulder outcrops typically on slopes and open flats below 6,100 ft. 

Poocarepa

Sidewinder Crotalus cerastes

--/--/--/C Endemic to the Mojave desert, found 

in southern Nevada; widespread throughout Clark County. 

Mojave desert scrub, mesquite, catclaw acacia, and salt desert scrub habitats are most common, but also found in rocky stream beds, on bajadas, hardpan, barren dunes, and in rocky areas below 5,500 ft elevation. 

Poocstuare
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Speckled rattlesnake Crotalus mitchelli

--/--/--/C Endemic to the Mojave and Sonoran 

deserts, found in southern Nevada; widespread throughout Clark County. 

Pinyon-juniper, sagebrush, Mojave desert scrub, and blackbrush habitats up to 7,800 ft. Primarily found in rocky terrain on outcrops and boulders, but will also occupy loose soil and sand. 

Poocstuare

Mojave green rattlesnake Crotalus scutulatus scutulatus

--/--/--/C Found in the Mojave and Sonoran 

deserts south into central Mexico. Species is found in southern Nevada; widespread throughout Clark County. 

Mojave desert scrub and blackbrush flats Po

ocstuare

Glossy snake Arizona elegans

--/--/--/C Endemic to the southwestern 

deserts, found in southern Nevada; widespread throughout Clark County. 

Mojave desert scrub and salt desert scrub habitats with open sandy surface, scattered brush, and rocky areas; extending into grasslands and pinyon-juniper habitats to 7,000 ft. 

Poocstuare

Common king snake Lampropeltis getulus californiae

--/--/--/C Found in southern Nevada, 

throughout Clark County. 

Wide ranging, most commonly found in Mojave desert scrub and salt desert habitats in the vicinity of rock outcrops or clumps of vegetation; can range up to 7,000 ft

Poocstuare

Western leaf-nosed snake Phyllorhynchus decurtatus

--/--/--/C Found in southern Nevada, 

throughout Clark County. 

Mojave desert scrub and salt desert scrub habitats in rocky areas and sandy flats. 

Poocstuare

Western longnosed snake Rhinocheilus lecontei lecontei

--/--/--/C Found throughout Nevada, except in 

the extreme northern regions of the state. 

Mojave desert scrub and salt desert scrub with open sandy surface, scattered brush, and in rocky areas below 5,000 ft. 

Poocstuare

Sonoran lyre snake Trimorphodon biscutatus lambda

--/--/--/C Found in the eastern Mojave and 

Sonoran deserts, in the southernmost region of Nevada. 

Rocky areas in Mojave desert scrub, pinyon-juniper, and mixed conifer habitat in lowlands, mesas, and lower mountain slopes up to 7,400 ft. 

Poocarepa
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Birds American peregrine falcon 

--/P/S/C Known to occur in the Spring 

Mountains, Logandale, Overton State Wildlife Management Area, Newberry Mountains, Desert National Wildlife Range, Black Mountains, Mormon Farm, Henderson, Lake Mead, and Black Canyon. 

Inhabit mixed conifer, pinyon-juniper, sagebrush, lowland riparian, and grassland habitats, as well as agricultural and urban areas. Nests in rocky areas, cliffs, and on manmade structures. 

Poocarepa

Western yellowbilled cuckoo Coccyzus americanus occidentalis 

--/P/--/C Habitat occurs along the Virgin, 

Muddy, and Colorado River systems, Las Vegas Valley Wash, and Corn Creek. 

Wide, dense riparian forests with a thick understory of willows for nesting; sites with a dominant cottonwood overstory are preferred for foraging; may avoid valley-oak riparian habitats where scrub jays are abundant 

No ha

Vermilion flycatcher Pyrocephalus rubinus (nesting) 

--/--/--/C Resident along the Colorado River, 

Virgin River system, and desert oases. Winters in desert scrub. 

Nests in desert riparian habitats dominated by cottonwood, willow, and mesquite trees adjacent to open areas 

No ha

Southwestern willow flycatcher Empidonax traillii extimus

E/P/S/C Southern Nevada, southern 

California, Arizona, New Mexico, southern Utah, western Texas, northwestern Mexico, and southwestern Colorado. 

Densely vegetated riparian habitat with streamside associations of cottonwoods and willows 

No ha

Blue grosbeak Guiraca caerulea

--/--/--/C Habitat for this species occurs along 

the Virgin, Muddy, and Colorado River systems and Las Vegas Valley Wash. 

Occurs in desert riparian, grassland habitats, agricultural and urban areas. They are primarily found in riparian habitat, such as thickets of willow, young cottonwood, arrowweed, tamarisk along watercourses or oases and forage in adjacent openings, grasslands, and croplands. 

Pomastuwa
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Phainopepla Phainopepla nitens

--/--/--/C Resident in the Mojave region of 

southern Nevada. 

Found in lowland riparian and mesquite and catclaw acacia habitats, as well as agricultural fields. In deserts they are found primarily in washes, riparian areas, and other habitats that support brushy growth of mesquite, catclaw, ironwood, and palo verde. Often in association with mistletoe. 

Pomastuwa

Summer Tanager Piranga rubra 

--/--/--/C Found throughout the southwestern 

United States into Mexico. 

Found in desert riparian habitat, particularly mature cottonwood-willow associations along streams. 

No ha

Arizona Bell’s vireo Vireo bellii pusillus

--/--/--/C The Arizona subspecies occurs 

along the Colorado River and in riparian and mesic habitats in southern Arizona and northern Mexico. 

Riparian thickets either near water or in dry portions of river bottoms; nests along margins of bushes and forages low to the ground; may also be found using mesquite and arrow weed in desert canyons 

No ha

Summer tanager Piranga rubra(nesting) 

--/--/--/C Rare yearlong resident along the 

Colorado River, Virgin River system, and desert oases. Winter resident in desert scrub, permanent resident in riparian areas. 

Breeds in mature, desert riparian habitats dominated by cottonwood and willow. May also be found in mesquite, catclaw acacia habitats adjacent to mesic areas including irrigated fields, ditches, and pastures 

No ha

Mammals Bats Silver-haired bat Lasionycteris noctivagans

--/--/--/C Occurs from northern Mexico 

throughout the U.S. to southern Canada, with a wide distribution throughout Nevada. 

Roosts in tree cavities, under bark, or in old snags in coniferous and deciduous forest. Forages over water or in openings in the forest. 

No ha

Long-eared myotis Myotis evotis

--/SS/--/C Found throughout the state and is 

thought to be fairly common in southern Nevada with the exception of the extreme southern portion of the state. 

Occurs primarily in high elevation coniferous forests, but also found in mixed hardwood/conifer, high desert, and humid coastal conifer habitats 

No ha
Common and 

Scientific Name 

Federal/State/ BLM/HCPa Nevada Distribution Habitats 

OcSt

Long-legged myotis Myotis volans

--/SS/--/C Found throughout Nevada with the 

exception of the southeastern corner of the state in low desert habitat. 

Roost in abandoned buildings, mines, rock crevices and trees primarily in coniferous montane forest habitats. May also use habitats such as ponderosa pine/mountain shrub, 

juniper, sagebrush, and sagebrush/perennial grassland. 

Poocwo

Rodents Palmer’s chipmunk Tamias palmeri

--/--/--/C Endemic to the Spring Mountains 

range of southern Nevada and is found in a small, isolated area of the Charleston Mountains 

Occurs in bristlecone pine, mixed conifer, and pinyonjuniper habitats with rocky slopes or areas with freeflowing water. No 

arera

a Status explanations: 

Federal 

E = listed as endangered under the Federal Endangered Species Act. T = listed as threatened under the Federal Endangered Species Act. -- = no listing. 

State 

P = protected by the state of Nevada. SS = special status species by the state of Nevada. -- = no listing. 

BLM 

S = listed as sensitive by the Bureau of Land Management. -- = no listing. 

HCP 

C = species listed as a “Covered” species by the Clark County Multiple Species Habitat Conservation Plan 

E = species listed as an “Evaluation” species by the Clark County Multiple Species Habitat Conservation Plan W = species listed as a “Watch List” species by the Clark County Multiple Species Habitat Conservation Plan -- = no listing.