Table 2. Montana Plant Species of Special Concern (MPSSC) 

 known from Big Horn, Carbon, Stillwater, Sweet 

 Grass, Yellowstone, and Wheatland Counties and the 

 habitats where they are found. 



Adoxa moschalellina 

 Agoseris lackschewUzii 

 AquUegia brevistyla 

 Astragalus aretoides 

 Astragalus barrii 

 Astragalus chameleuce 

 Astragalus geyeri 

 Astragalus gray! 

 Astragalus oreganus 

 Bulbostylis capiUaris 

 Camissonia andina 

 Carex gravida 

 Carex valUcola 

 Castilleja longispica 

 Claytonia lanceolata jlava 

 Cleome lutea 

 Conioselinum scopulorum 

 Cryptanxha Jlavoculaia 

 Cryptanlha scoparia 

 Cypripedium calceolus 

 Delphinium andersonii 

 Delphinium geyeri 

 Draba Jladnizensis 

 Draba porsildii 

 Epipaclus gigantea 

 Erigeron allocalus 

 Erigeron eaionii 

 Erigeron Jlabellifolius 

 Erigeron formosissimus 

 Eriogonum lagopus 

 Eriogonum saluginosum 

 Eriophorum caUitrix 

 EupaXorium maculatum 

 Gentiana prostrata 

 Gentianella lenella 

 CeiUianopsis simplex 

 Crayia spinosa 

 Hemicarpha drummondii 

 Juncus covillei 

 Juncus triglumis 

 Kobresia macrocarpa 

 Koenigia islandica 

 Leptodactylon caespilosum 

 Lesquerella sp. novum 

 Malacothrix torreyi 

 Mentzelia pumila 

 Mimutus suksdorfii 

 Noma densum 

 Papaver kluanensis 

 Penstemon caryi 

 Phippsia algida 

 Poteniilla plaitensis 

 Ranunculus cardiophyllus 

 Ranunculus gelidus 

 Sagina nivalis 

 Salix barrattiana 



Stillwater 



Sweet Grass 



Sweet Grass 



Big Horn 



Big Horn 



Carbon 



Carbon 



Big Horn, Carbon 



Carbon 



Carbon 



Carbon 



Big Horn 



Carbon 



Carbon 



Sweet Grass 



Big Horn, Carbon 



Big Horn, Carbon 



Carbon 



Carbon 



Stillwater 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Big Horn, Carbon 



Sweet Grass 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Big Horn, Carbon 



Stillwater 



Carbon, Stillwater 



Carbon 



Big horn, Carbon 



Carbon 



Sweet Grass 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon 



Carbon, Stillwater 



Big Horn, Carbon 



Sweet Grass 



Stillwater 



Stillwater 



Carbon 



moist woods and rocks, 4,400-5,400' 



subalpine wet meadows, 8,500-9,500' 



open woods, streambanks, 5,000-6,000' 



barrens and guUics, 6,700-7,800' 



barrens and gullies, 3,100-3,800' 



sandy desert shrublands, 4,400' 



sandy hills and plains, 2,000'? 



sagebrush grasslands, 3,700-4,200' 



desert shrub and sagebrush, 5,000' 



sandy benches, adventive ? 



grasslands, sagebrush, 3,100-5,400" 



swales and shores, 3,900-4,000' 



moist-mcsic slopes, 5,760-7,080' 



sagebrush, meadows, 4,000-8,000' 



meadows 



sandy, disturbed valleys, 4,000' 



moist woods and meadows, 3,600' 



dry, gravelly slopes, 4,400-5,400' 



desert hills 



wet areas, moist woods, 3,000-6,200' 



sagebrush grasslands, limestone 



open slopes, 4,500-6,500' 



alpine, 11,000' 



alpine, 9,000-11,800' 



wet area, esp. thermal, 2,900-5,750' 



stony, limey soil, 4,400-5,600' 



open places, 8,825' 



alpine talus, 9,200-11,000' 



meadows in mountains, 4,760-8,200' 



sagebrush grasslands, 4,000-4,400' 



bcntonitc soil, 4,700' 



alpine 



wet areas, 3,700^,000" 



alpine 



alpine, 9,500-10,000" 



wet areas in mountains, 4,400-8,400" 



alkaline basins, 4,500-5,000' 



wet, sandy areas 



moist areas 



alpine, 9,800-10,500' 



alpine, 9,800" 



alpine, 9,800-10,800' 



dry. barren hills, 4,800" 



limestone, 6,800" 



dry plains and hilb, 5,140" 



desert shrub and woods, 4,300-5,000' 



rocky slopes, 4,800-7,100' 



sandy desert 



alpine, 10,800-11,600" 



grasslands in mountains, 5,900-8,080' 



alpine, 9,800-11,500" 



grasslands, 6,000-8,000" 



moist meadows, 5,000-5,900' 



alpine, 7,200-11,800' 



alpine 



alpine, 6,800-10,500" 



