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Production <br />• <br />Alfalfa averaged 1,034.9 pounds of biomass production per acre while all other vegetatic+n <br />averaged, 1,679.8 pounds per acre (Table 13). Total biomass production averaged 2,7'15.8 <br />~ pounds per acre. <br />Shrub Density <br />Native shrubs averaged 295.4 individuals per acre (Table 14). Big sagebrush accounted for <br />halt of these and mountain snowberry contributed more than two-fifths. Saskatoon <br />serviceberry and chokecherry were minor contributors. Dead big sagebrush were also <br />observed. <br />Mountain Brush Reference (Photographs 19 and 21 through 24) <br />i ver <br />Native shrubs dominated this reference unit with 68.8 percent of total vegetation cover. <br />Saskatoon serviceberry and mountain snowberry each contributed roughly one-third of this <br />lifeform's cover percentage (Table 15). Gambel's oak (Ouercus g6mbelii) provided one- <br />' quarter while chokecherry, Wood's rose, and big sagebrush were minor contributors. Douglas • <br />rabbitbrush, Oregon hollygrape (Mahonia r en ), mountain lover (~xi i a mvrsinites), <br />gooseberry ( ib Inerme), prickly currant (gibes s r ), and prickly rose (Rosa ;;8y.:t) <br />~ were present. <br />Native perennial cool season grasses were second in dominance with 16.7 percent of total <br />vegetation cover. Agassiz bluegrass accounted for more than half of these while elk sedge (Carex <br />', geyeri) contributed one-quarter. Together, oniongrass, Canada brome (f3romopsis canadensis), <br />Montana wheatgrass, slender wheatgrass, bluebunch wheatgrass, and Nel:•on needlegrass <br />comprised the balance. Bentgrass ( is spp.), wooly brome (Br psis I i s), <br />mountain brome, Canada wildrye, blue wildrye, sheep fescue, Canada bluegrass, and Letterman <br />i needlegrass were also present. Smooth brome and timothy, introduced perennial cool season <br />grasses, were present but did not contribute to total vegetation cover measurements. <br />Native perennial Torbs were the most diverse lifeform in this unit and averaged 11.0 percent of <br />total vegetation cover. Together, nettle-leaf giant hyssop and horsemint accounted for one-third <br />of this cover percentage. Western yarrow contributed one-tenth while showy fleabane, <br />18 • <br />