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e <br />ESPEY, HUSTON b ASSOCIATES, INC. <br />• <br />Cover <br />The vegetation of the mountain shrub community includes 72 species: 13 <br />shrubs, 16 graminoids, and 43 forbs. Shrubs with a total cover of 41.2 percent <br />represent the dominant life-form, followed by forbs (12.0 percent cover) and <br />graminoids (11.9 percent cover). Total vegetation cover (shrubs plus herbs) was 65..1 <br />percent; litter cover high at 41.9 percent; soil cover moderate at 20.2 percent; and <br />rock cover moderate at 13.8 percent (see Table R-6). <br />Serviceberry and snowberry aze codominant shrubs providing 12.2 and <br />11.1 percent cover, respectively. Other major shrubs present include Gambel oak <br />(7.1 percent cover) which occurs most commonly at the higher elevations in the <br />moister habitats and big sagebrush (95.8 percent cover). Less common shrubs aze: <br />mountain mahogany (Cercocazpus montanus), rubber rabbitbrush, Douglas rabbit- <br />brush, myrtle pachistima, chockcherry, antelope bitterbrush (Purshia tridentata), <br />• skunkbrush sumaz (Rhos trilobata), wax currant and Woods rose. <br /> <br />• <br />Cool season mid-grasses aze the dominant graminoids in the mountain <br />shrub community. The dominants aze: native bluegrass (Pon agassizensis) (2.3 <br />percent cover), western wheatgrass (2.0 percent cover) and slender wheatgrass (2.0 <br />percent cover). Other common graminoids aze: elk sedge (Cazex cf. geyeri), Indian <br />ricegrasa, quackgrass (Agropyron re ens), Lettermans needlegrass and Thurber <br />fescue. <br />Forb cover is not dominated by a pazticulaz species but is a hetero- <br />geneous mixture of perennials. These aze: yarrow (1.5 percent cover), Pacific aster <br />(1.5 percent), arrowleaf balsamroot (Balsamorhiza sagittata) (1.4 percent), and <br />Oregon grape (Mahonia repens) (1.4 percent). Other common forbs aze prairie sage <br />(Artemiaia ludoviciana), three-veined fleabane (Eri~_eron subtrinervis), bedstraw <br />(Galium coloradoense), sweetpea (Lath_~us leucanthus) and mountain lupine. <br />K-24 <br />