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• DISTURBED SITE <br />Disturbed areas located within the permit area are dominated <br />by the introduced weedy species Cheatgrass and Russian thistle <br />(Salsola iberica). <br />GREASEWOOD <br />The Greasewood (Sarcobatus vermiculatus) community type is found <br />on saline soils in the study area and is most extensive along <br />the highway northeast of Grand Valley. Greasewood is the dominant <br />species in the shrub layer (1475 plants per acre, 9~ cover, height <br />about 100 to 130 cm, 3 to 4 feet) with Shadscale (Atriplex con- <br />fertifolia) being present as a secondary dominant (Table J17). <br />Cheatgrass accounts for much of the 48 percent cover by herbaceous <br />species and is the most abundant species in the herb layer. <br />Other common species include Peppergrass (Lepidium perfoliatum) <br />and Filaree (Erodium cicutarium). Seventeen other species were <br />encountered in the herbaceous layer of sampling of the Greasewood <br />vegetation (Table J18). In addition, eight other species were <br />observed in the Greasewood communities (J19). Most of the areas <br />of Greasewood vegetation have been moderately grazed. <br />LOW ELEVATION BIG SAGEBRUSH SHRUBLAND <br />Big Sagebrush dominates the vegetation and is present in densi- <br />ties as great as 11,500 plants per acre. Sagebrush heights are <br />mostly about 100 cm (3 feet) but can range to 300 cm (10 feet) <br />or higher. Utah Juniper also occurs in the shrub layer but its <br />density is low (40 individuals per acre). Sagebrush plants cover <br />about 25 percent of the area; however, in the field the coverage <br />appears greater than this because of the almost complete lack <br />of other shrub species (Table J20). <br />• <br />J-10 <br />