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. Pennycress (Thlaspi arvense) dominated this group (8.8°~ of total cover), while twolobe <br />speedwell and Russian thistle (Salsola australis) provided moderate cover (3.5% for <br />each). Cheatgrass (Anisantha tectonrm), an introduced annual grass, was also found <br />throughout the site (2.3% cover). <br />Total average vegetation cover, for first hits, was 40.7%. Herbaceous vascular plant <br />cover, for all hits, was 41.7%. Standing dead, litter, bare soil, and rock had 1.4°k, <br />29.4%, 27.5%, and 1.0% cover, respectively (first hits). Average species dens'dy was <br />26.3 individuals/acre. <br />PRODUCTION <br />(Table 5) <br />Total average production was 1,900.4 Ibs/acre. Alfaffa produced 80.3 Ibs/acre (approx. <br />4%), and all other plants produced the remaining 1,820.1 Ibs/acre. <br />WOODY PLANT DENSITY <br />(Table 6) <br />Total average density of woody plants was 36.4 individuals/acre, composed entirely of <br />• big sagebrush, a native shrub. <br />Aspen Reference Area <br />(Photographs 14-17) <br />COVER <br />(Table 7) <br />Native perennial forts were most abundant, composing 46.1 % of the total 114.3% <br />vegetation cover. Within this group, mountain bluebells (Mertensia ciliata), sweet Cicely <br />(Osmorhiza chilensis), and stinging nettles (URica gracilis ssp. gracilis) were most <br />common, having 13.6% 5.2%, and 4.3% cover, respectively. Native shrubs composed <br />33% of total vegetation cover. Saskatoon serviceberry (Amelanchier alnifolia) (12°~ <br />cover) and mountain snowberry (13.7% cover) were the dominant shrubs. Native <br />perennial cool season grasses were common (10.1°~ cover), especially blue wildrye <br />(E/ymus g/aucus), with 6.8% cover. Quaking aspen (Popu/us tremuloides) was an <br />important component of the vegetation, contributing 17.7% to total cover. In general, this <br />• area was heavily vegetated, with little bare ground or rock. The vegetation structure was <br />complex, with multiple physiognomic layers made up of herbs, shrubs, and trees. When <br />added together, the data for each of these overlapping layers summed to a total percent <br />