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Bromus inermis (smooth brome) 

 Bromus tectorum (cheatgrass brome) 

 Cynoglossum officinale (common hound 's-tongue) 

 Poa pratensis (Kentucky bluegrass) 

 Tragopogon dubius (yellow salsify) 



The sites occurring at the highest elevations 

 (Quartz Hill Gulch (010), Echo Gulch (Oil)), in 

 the northeastern Pioneer Mountains, occur in 

 openings in forests dominated by Pinus 

 contorta , and to a lesser extent, Pseudotsuga 

 menziesii . Artemisia tridentata is not an 

 associated species at these locations. These 

 openings are dominated by forb species, most 

 notably Astragalus miser . Pedicularis contorta , 

 and Townsendia parryi . These two sites are 

 ecologically distinct from those found in the 

 sagebrush areas to the south and west. 



In Ravalli County, Montana, P. lemhiensis 

 occurs in the dryer Pinus ponderosa/Purshia 

 tridentata habitat type. Associated species in 

 this area include: 



Agropyron spicatum (bluebunch wheatgrass) 

 Alyssum alyssoides (pale alyssum) 

 Arabis holboellii (Holboell's rockcress) 

 Balsamorhiza saqittata (arrowleaf balsamroot) 

 Bromus tectorum (cheatgrass) 

 Centaurea maculosa (spotted knapweed) 

 Geranium viscosissimum (sticky geranium) 

 Koeleria cristata (prairie junegrass) 

 Lithospermum ruderale (wayside gromwell) 

 Melilotus officinalis (yellow sweet-clover) 

 Penstemon albertinus (Alberta penstemon) 

 Phacelia heterophylla (varileaf phacelia) 

 Phacelia linearis (threadleaf phacelia) 

 Phvsaria geyeri (Geyer's twinpod) 

 Verbascum thapsus (flannel mullein) 



Dominance and frequency of the taxon: Most 

 populations of P. lemhiensis consist of 

 scattered individuals; the percent canopy cover 

 of the species is generally less than 5%. 

 Portions of the French Creek (009) site contain 

 dense subpopulations, and canopy cover of P. 

 lemhiensis in some small areas is approximately 

 10-20%. In 1989, three demographic monitoring 

 transects were established in Beaverhead County 

 (two at French Creek (009), one at Badger Pass 

 North (019)), all on Beaverhead National Forest 

 lands. The density (plants/m 2 ) in these three 



