Draft SEORMP Amendment and EIS Appendix E 

Internal Review Draft – Southeastern Oregon 

Resource Management Plan Amendment 

and Environmental Impact Statement 

Appendix E 

Special Status Plants List 
 

 

 

 

 

 

 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Introduction 

The Final Oregon/Washington State Director Special Status Species List (July 27, 2015) lists 62 

documented and suspected Special Status plant species located in the planning area. A complete list of the 

Special Status plant species documented or suspected in the planning area and their habitat and range is 

provided in Table E-1. 

Table E-1. 2015 OR/WA state director special status plants list. 

Common Name Scientific Name Habitat 

Sandy soils, desert scrub. 

900-2500 m.1 

Range 

California, Nevada, 

Oregon1 transmontane abronia Abronia turbinata 

Malheur Valley 

fiddleneck Amsinckia carinata Sandy loam soils on north 

facing slopes. 1100 m.2 Oregon2 

king snapdragon Antirrhimun kingii 

Deserts, gravely slopes, 

talus, and wash banks, 

sometimes in sandy oils, 

in shadescale, blackbrush, 

and sagebrush 1000-

2000m2 

Arizona, Utah, Nevada, 

Oregon, California2 

prickly-poppy Argemone munita 

Open slopes in foothills 

and sagebrush flats, often 

along roadsides, usually 

in full sun. 600-2500m2 

Oregon, Idaho, California, 

Utah, Nevada, Arizona2 

Lahontan sagebrush Artemisia arbuscula ssp. 

longicaulis 

Dry plains and hills, 

commonly in shallower 

soil or less favorable sites 

that A. tridentata. 

Lowlands to 3300 m.2 

California, Oregon, 

Washington, Montana, 

Wyoming, Colorado, 

Idaho, Nevada, Utah2 

Owyhee sagebrush Artemisia papposa 

Rocky swales, dry 

meadows, alkaline mud 

flats. 1400-2100 m.1 

Idaho, Nevada, Oregon1 

King's rattleweed Astragalus calycosus 

Dry stony or otherwise 

barren places, from the 

valley floor to lower 

foothills in sagebrush or 

juniper-pinyon forest, 

strongly but not 

obligatory calciphine 

soils. 1300-3950 m.2 

Utah, Nevada, California, 

Oregon, Idaho, Colorado2 

sterile milk-vetch Astragalus cusickii var. 

sterilis 

Rocky hillsides, bluffs, 

talus-slopes, and barren 

hilltops. Below 1500 m.2 

Oregon, Idaho3 

Geyer's milk-vetch Astragalus geyeri var. 

geyeri 

Depressions in mobile or 

stabilized dunes, sandy 

flats, and valley floors, 

along draws in gullied 

hills, and on margins of 

alkaline sandy playas. 

Below 1850 -2150 m.2 

California, Oregon, 

Washington, Idaho, Utah, 

Nevada, Montana, 

Wyoming, Colorado3 

Mulford's milk-vetch Astragalus mulfordiae 

Sandy bluffs and dune 

like or sometimes shaley 

talus of river-terraces. 

650-850 m.2 

Oregon and Idaho3 

E-1 
 

 

 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Common Name Scientific Name Habitat Range 

broad-keeled milk-vetch Astragalus platytropis 

Stony crests, screes, and 

talus in the timber belt 

ascending through 

bristlecone pine forests 

into fellfield, gravely 

hilltops and barren ridges 

in the sagebrush belt on 

strongly calciphile soils. 2 1650-3530 m. 

California, Nevada, 

Oregon, Idaho, Montana, 

Wyoming2 

Cordilleran sedge Carex cordillerana 

Naturally disturbed, rocky 

slopes with organic layer 

and leaf litter in mesic 

mixed forests , or 

disturbed, open, grassy1 slopes. 500-2400m. 

Idaho, Montana, Oregon, 

Utah, Washington, 

Wyoming.1 

rural paintbrush Castilleja flava var. 

rustica 

Dry sagebrush and grass 

flats and slopes. 1800-

3000m.2 

Oregon, Idaho.2 

smooth wild cabbage Caulanthus crassicaulis 

var. glaber 

Sagebrush scrub, pinyonjuniper woodland. 1200-

2900 m.1 

Arizona, California, 

Colorado, Idaho, Nevada, 

Utah, Wyoming.1 

slender wild cabbage Caulanthus major var. 

nevadensis 

Margin of montane 

forests, sagebrush, 

pinyon-juniper 

woodlands. 1500-3200 

m.1 

Eastern and southern 

California, Nevada, 

southeastern Oregon, and 

Utah.1 

hairy wild cabbage Caulanthus pilosus 

Often in alkaline soils 

with shadscale and 

greasewood, or at higher 

elevation in sagebrush 

and pinyon-juniper 

communities. 700-

2200m.2 

Oregon, Idaho, Nevada, 

California, Utah.2 

desert chaenactis Chaenactis xantiana 

Open, deep loose, sandy 

(rarely gravelly) soils, 

arid and semiarid 

shrublands, chaparral. 1 300-2500 m. 

Arizona, California, 

Nevada, Oregon 1 

Wheeler's skeleton-weed Chaetadelpha wheeleri 

Dunes, sandy soils and 

alkali flats in creosote 1 bush scrub. 800-1800 m. 

California, Nevada, 

Oregon1 

Barren Valley collomia Collomia renacta 

Relatively undisturbed 

rocky sites with poorly 

developed soils on 

scablands or lithic soils.8 

Nevada and Oregon3 

Greeley's cymopterus Cymopterus acaulis var. 

greeleyorum 

Heavy clay, sand, or 

volcanic ash.2 Sandy soil 

and brown and white 

volcanic ash in Wyoming 

sagebrush, desert shrub 

and Indian ricegrass 

zones.4 

Oregon, Idaho, Utah2 

ibapah wavewing Cymopterus ibapensis Open places, variously in 

sandy, gravelly, rocky, Nevada, Oregon, Utah2 

E-2 
 

 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Common Name Scientific Name Habitat Range 

loam, or clay soil, often 

with sagebrush or juniper. 2 1350-2700 m. 

darkthroat shootingstar Dodecatheon pulchellum 

var. shoshonense 

Moist, alkali, inland, 

meadow communities. 1 700-2400 m. 

California, Idaho, 

Nevada, Oregon, Utah.1 

short seeded waterwort Elatine brachysperma 

In mud or shallow water 

on the banks of streams 

and at the edges of ponds 

and reservoirs. 1200-1500 

m.2 

Washington, Oregon, 

California, Arizona, New 

Mexico, Texas, Alabama, 

Georgia, Illinois, and 

Ohio.3 

Bolander's spikerush Eleocharis bolanderi 

Fresh, often summer-dry 

meadows, springs, seeps 

stream margins. 1000-

34000 m.1 

California, Colorado, 

Idaho, Nevada, Oregon, 

Utah.1 

broad fleabane Erigeron latus 

Dry, open places, level to 

moderate slope, 

commonly with 

sagebrush, usually 

undisturbed, sometimes 

grazed and/or burned1 sites. 200-400 m. 

Washington1 

golden buckwheat Eriogonum chrysops 

Gravelly basaltic or 

rhyolitic slopes and 

outcrops, sagebrush 

communities. 1200-1400 

m.1 

Oregon1 

Hooker's wild buckwheat Eriogonum hookeri 

Sandy washes, flats, and 

slopes, saltbush, 

greasewood, sagebrush, 

and mountain mahogany 

communities, pinyonjuniper woodlands. 1300-

2500 m.1 

Arizona, California, 

Colorado, Idaho, Nevada, 

New Mexico, Oregon, 

Utah, Wyoming.1 

prostrate buckwheat Eriogonum prociduum 

Sandy to gravelly slopes, 

sagebrush communities. 1 1400-2400 m. Idaho, Nevada, Oergon1 

playa buckwheat Eriogonum salicornioides 

Clayey flats and slopes, 

saltbush, greasewood and 

sagebrush communities, 

juniper woodlands. 700-

1300 m.1 

Idaho, Nevada, Oregon1 

disappearing 

monkeyflower 

Erythranthe 

washingtoniensis 

Summer dry 

watercourses, or near the 

drying edges of small 

lakes or impoundments.5 

California, Idaho, 

Oregon3 

Cronquist's stickseed Hackelia cronquistii 

Shady sagebrush slope, 

typically north facing. 2 600-750 m. Oregon, Idaho3 

three forks stickseed Hackelia ophiobia 

Talus and rock-crevices. 2 

Talus at the base of 

rhyolitic cliffs and rock 

crevices on shady north 

face of canyons.4 

Oregon, Idaho, and 

Nevada2 

E-3 
 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Common Name Scientific Name Habitat Range 

salt heliotrope Heliotropium 

curassavicum 

Saline places in the 

valleys and lowlands, 

often in the beds of dried 

ponds or maritime.2 

Throughout the United 

States.2 

grimy ivesia Ivesia rhypara var. 

rhypara 

Cracks and crevices of 

ash tuff. 1300-1600 m.2 Oregon and Nevada2 

Shockley's ivesia Ivesia shockleyi 

Rocky slopes and talus 

just below timberline. 

2800-3600m.2 

California, Oregon, 

Nevada, Utah.2 

Davis' peppergrass Lepidium davisii 

Playas of sagebrush plains 

and mesa, vernal ponds. 

800-1600 m.1 

Idaho, Nevada, Oregon1 

bentonite biscuitroot Lomatium bentonitum Bentonite clay outcrops. 

750-1500m8 Oregon8 

fringed desert-parsley 

Lomatium 

feonicaulaceum ssp. 

fimbriatum 

Dry open slopes, from 

valleys and plains to 

middle or sometimes high 

elevation in mountains.2 

California, Nevada, 

Oregon, Utah3 

lyrate malacothrix Malacothrix sonchoides 

Usually on dunes or in 

deep, fine sand in arroyos 

and on plains in Joshua 

tree woodlands, 

grasslands. 300-2100 m.1 

Arizona, California, 

Colorado, Nevada, New 

Mexico, Utah, Wyoming.1 

united blazingstar Mentzelia congesta 

Open dry places, often in 

sandy soils, usually where 

the sand shifts and in sites 

disturbed by humans. 

1200-2550 m.2 

California, Idaho, 

Nevada, Oregon3 

smooth mentzelia Mentzelia mollis 

Barren heavy clay slopes 

and bluffs derived form 

volcanic ash. 800-1465 

m.2 

Idaho, Nevada, Oregon2 

Packard's mentzelia Mentzelia packardiae 

Yellow-green ash-tuff 

soils, derived from the 

Sucker Creek Formation. 

850-1150m2 

Oregon2 

annual dropseed Muhlenbergia 

minutissima 

Sandy and gravelly 

drainages, rocky slopes, 

flats, road cuts, and open 

sites. It is usually fund in 

yellow pine and oak-pine 

forests, pinyon-juniper 

woodlands, thorn-scrub 

forests, and oak-gramma 

savannahs. 1200-3000 m.1 

Western United States to 

southern Mexico.1 

white locoweed Oxytropis sericea var. 

sericea 

Prairies, plains, foothills, 

especially in open dry 

grasses and rocky habitats 

below 2200 m, bur 

ascending to mountain 

balds and through open 

pine forest to timberline 

near 3300 m.2 

Oregon, Idaho, Montana, 

Wyoming, Colorado, 

Nevada, Utah, New 

Mexico, South Dakota, 

Nebraska, Kansas, 

Oklahoma, Texas3 

desert needlegrass Pappostipa speciosa 

E-4 
 

 

 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Common Name Scientific Name Habitat Range 

hot-rock penstemon Penstemon deustus var. 

variabilis 

Dry foothills and 

lowlands, on open, dry, 

thin soils over basalt. 500-

1000m.9 

Oregon, Washington.9 

beautiful penstemon Penstemon perpulcher Sagebrush plains and 

rolling hills. 650-2000m.2 Idaho.2 

playa phacelia Phacelia inundata 

Mostly on alkali flats and 

on or around the margins 

of playas, sinks, and 

fluctuating lakes, in 

places that are likely to be 

submerged for part of the 

year, only seldom on 

slopes.2 

California, Nevada, 

Oregon2 

Mackenzie's phacelia 

Phacelia lutea var. 

mackenzieorum Unweathered tuff talus.2 Oregon2 

spinescent fameflower Phemeranthus spinescens 

Cliffs, ledges, and 

outcrops in basaltic soils. 

700-1100m.1 

Oregon, Washington.1 

Chambers' twinpod Physaria chambersii 

Clay hillsides, limestone 

gravel, dolomite ridges, 

roadbanks, loose gravel, 

reddish clay, sagebrush, 

and pinyon-juniper areas. 

1500-3200 m.1 

Arizona, California, 

Idaho, Nevada, Oregon, 

Utah1 

profuse-flowered mesa Pogogyne floribunda 

Restricted to summer-dry 

playa lake beds and 

ephemeral channels in 

Great Basin silver 

sagebrush communities.6 

California, Oregon3 

Rafinesque's pondweed Potamogeton diversifolius Ponds, lakes, streams, and 

rivers. 5-2500m.1 Across the U.S.1 

desert pernanthella Prenanthella exigua 

Sandy, gravelly, or clay 

soils, desert sashes and 

open slopes to sagebrushjuniper steppes. 20-1900 

m.1 

Arizona, California, 

Colorado, Nevada, 

Oregon, Texas, Utah, 

Mexico1 

Snake River goldenweed Pyrrocoma radiata Dry hillsides, alkaline 

slopes. 600-2400 m.1 Oregon, Idaho1 

Etter's senecio Senecio ertterae 

Talus slopes on greenish 

yellow ash tuff. 900-1200 

m1 

Oregon1 

biennial stanleya Stanleya confertifolia 

Barren clay slopes in 

sagebrush communities, 

heavy clay flats, loose soil 

mounds, dry sandy 

grounds, alkaline 

meadows and flats. 600-

1500 m.1 

Idaho, Oregon1 

long-flowered snowberry Symphoricarpos 

longiflorus 

Open, rocky slopes and 

washes in the sagebrush 

and pinyon-juniper zones, 

sometimes extending 

upwards into the 

Arizona, California, 

Colorado, Idaho, new 

Mexico, Nevada, Oregon, 

Texas, Utah.3 

E-5 
 

 

 

 

 

Draft SEORMP Amendment and EIS Appendix E 

Common Name Scientific Name Habitat Range 

ponderosa pine zone. Up 

to 2200 m.2 

lichen Texosporium sanctijacobi 

Arid to semiarid 

grasslands, shrublands, or 

savannas. Up to 1000m.7 

California, Idaho, 

Oregon.7 

tufted townsend daisy Towsendia scapigera 

In various sorts of dry, 

open habitats. 1400-

3400m.2 

Nevada, California, 

Oregon.2 

Leiberg's clover Trifolium leibergii 

Barren tuffaceous 

hillsides, bare shaley 

crests and talus, reddish 

ash-flow. 1200-2400 m.2 

Oregon, Nevada2 

Owyhee clover Trifolium owyheense 

Steep barren slopes, 

ridges, and playamargins, in shallow bluegray diatomaceous or 

yellow green tuff soils. 

1300-1500m.2 

Idaho, Oregon2 

References: 1 Flora of North America (FNA) 2000, 2002, 2003a, 2003b, 2006a, 2006b, 2006c, 2009, and 2010 2 Intermountain Flora Cronquist et al. 1984, 1989, 1994, 1997, and 2005; Holmgren et al 2012. 3 USDA PLANTS database 4 BLM 2006 5 Meinke 2007 

6 Meinke 2006 

7 McCune and Rosentreter 1992 8 Mansfield 2015 9 Camp and Gamon 2011 

E-6