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• SAGEBRUSH EXTENDED REFERENCE AREA <br />(Photographs 21-24) <br />Cover <br />(Table 14) <br />Native shrubs were most abundant in the Sagebrush Reference Area, contributing 38.5 percent <br />all-hit cover. Within this group, mountain snowberry and big sagebrush were most common, <br />having 20.8 and 13.4 percent all-hit cover, respectively. Native perennial cool season grasses <br />were the second most common life form (14.9 percent all-hit cover). Agassiz bluegrass and <br />slender wheatgrass were the most abundant within this group (5.4 and 3.5 percent all-hit cover, <br />respectively). Native perennial forbs were the third most abundant group (12.7 percent all-hit <br />cover) comprised by numerous species with low percent cover values. Arrowleaf balsamroot <br />(Balsamorhiza sagittata) contributed the highest percent cover value of the native perennial forbs <br />with 3.2 percent all-hit cover. <br />Total average vegetation cover, for first hits, was 57.5 percent. Total average vegetation cover, <br />for all hits, was.68.2 percent. Standing dead, litter, bare soil, and rock each had 3.4, 26.0, 12.7, <br />and 0.5 percent cover, respectively (first hits). Average species density was 27.9 species per 100 <br />sq.m. <br />u <br />Production <br />(Table 15) <br />Total average production was 631.7 Ibs per acre. <br />STEEP MOUNTAIN BRUSH EXTENDED REFERENCE AREA <br />(Photographs 25-28) <br />Cover <br />(Table 16) <br />Native perennial cool season grasses were the predominant group in the Steep Mountain Brush <br />Reference Area contributing 14.7 percent all-hit cover. Of this, bluebunch wheatgrass <br />(Pseudoroegneria spicata ssp. spicata) and Montana wheatgrass (Elymus lanceolatus fm. <br />albicans) were most common, contributing 9.3 and 1.3 percent all-hit cover, respectively. Native <br />shrubs were the second most abundant group, contributing 14.1 percent all-hit cover. Within this <br />group, big sagebrush Saskatoon serviceberry, and birchleaf mountain mahogany (Cercocarpus <br />montanus) were most common, having 3.7, 3.7 and 3.3 percent all-hit cover, respectively. <br />• <br />10