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<br /> <br />found influence on the ecosystems on this area; all five <br />vegetation types show signs of use, including soil tram- <br />pling and low production of grasses. The area is grazed <br />by cattle, deer, and elk. <br />Endangered or Threatened Species <br />There are no known endangered or threatened plant species <br />on the site; however, vegetation at the property has not <br />been analyzed in detail. <br />Two primary and one secondary vegetative communities <br />exist within the lease boundaries of C-22676. The pri- <br />wary types are sagebrush and creek bottom, with the <br />secondary type consisting of mountain shrub. <br />Sagebrush, type 4 <br />The sagebrush communities are characterized by almost <br />complete dominance of big sagebrush (Artemesia tridentata). <br />The growth form of this community is characterized by <br />scattered shurbs of medium height, rarely exceeding <br />four feet. There are many areas of bare ground with <br />various grasses and forbs comprising the understory. <br />The most abundant grass is western wheatgrass (Agropyron <br />smithii), and the most common forbis lupine (Lupinus <br />spp.). Wherever soil moisture retention becomes limit- <br />ing to other landscape components, this sagebrush com- <br />munity develops. In this type, snowberry (Symphoricarpos <br />oreophilus) occurs locally within the sage where ex- <br />posure or moisture retention is favorable. The sage- <br />115 <br />