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buckwheat (Eriogonum spp.), onion (Allium spp.) flebane <br />(Erigeron spp.), and milkvetch (Astragalus spp.). <br />Mountain shrub, type 5 <br />The mountain shrub community is usually found on the high- <br />est slopes and lower north-facing slopes of the area, de- <br />pending on soil depth, texture, and available moisture. <br />This type supports important browse species, including: <br />Gambel's oak ( uercus gambelii), western serviceberry <br />(Amelanchier alnifolia), antelope bitterbrush (Pursia <br />tridentata), big sagebrush (Artemesia tridentata), <br />chokecherry (Prunus virginia), mountain mahogany (Cero <br />carpus montanus), and snowberry (Symphoricarpos spp.). <br />Associated species are the same as listed in Chapter 2 <br />of the NWCCRES. <br />Aspen, type l0A <br />Aspen (Populus tremuloides) are located in the highest <br />areas and those of best soil moisture conditions. There <br />are only a few areas that are distinctly aspen type; <br />most aspen is mixed with mountain shrub type. <br />Mountain shrub-rock outcrop, type SA <br />In general, this type is the same as mountain shrub com- <br />munity, but is found on rock outcrops in the lease area. <br />Understory vegetation is not as dense as mountain shrub <br />community, and much of the area is covered by bare rock. <br />Grazing appears to have had and continues to have a pro- <br />114 <br />