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<br />' Skyrocket Gilia (Ipomopsis aggregata), Alumroot (Heuchera parvifolia), <br />and Tufted Evening Primrose (Oenothera caespitosa). Also <br />apparent are Penstemon (Penstemon sp.), Flowery Phlox (Phlox <br />multiflora), Cinquefoil (Potentilla sp.), Dandelion (Taraxacum <br />officinale), and Violet (Viola sp.). <br />' Species observations reported herein and in Table J-1 are based <br />on April 14, 1981, observations. <br />Total vegetation cover is estimated to average 35 percent <br />(range 15-55 percent depending on slope aspect) with Vasey Big <br />Sagebrush (Artemisia tridentata ssp, vaseyana) accounting for <br />the majority of cover (5-30 percent). Rock cover averages <br />' 25 percent, litter cover 20 percent, and bare ground 20 percent. <br />Forage production is estimated to average 200 pounds per acre. <br /> <br /> <br />1 <br /> <br />1 <br />Bottomland <br />Vegetation of the bottomland area is dominated by grasses with <br />intermixings of shrubs. Major grasses include Timothy (Phleum <br />~ratense), Kentucky Bluegrass (Poa pratensis), Bluegrass (Poa sp.), <br />and Mountain Brome (Ceratochloa marginata Other grasses observed <br />are Slender Wheatgrass (Agropyron trachycaulum), Thickspike <br />Wheatgrass (Agropyron dasystachyum), and Western Wheatgrass <br />(Agropyron smithii). Sedge (Carex sp.) is a very prominant <br />grasslike species. Another grasslike species present is Woodrush <br />(Luzula sp.). <br />Shrubs evident on the site are Red-osier Dogwood (Swida <br />sericea), i4illow (Salix sp.), and Rubber Rabbitbrush <br />(Chrysothamnus nauseosus). A subshrub present is Woods Rose <br />(Rosa woodsii). <br />' Forbs are rare in the bottomland as they are outcompeted by <br />grasses for water. Forbs observed were Thistle (Cirsium sp.), <br />Skyrocket Gilia (Ipomopsis aggregata), and Violet (Viola sp.). <br />Total vegetation cover varies depending on whether the community <br />is dominated by grasses or by shrubs. In the former community, <br />total vegetation cover averages 65 percent (55 to 75 percent). <br />' Forage production was estimated to be 1700 pounds per acre. Litter <br />cover averages 30 percent and bare soil 5 percent. In shrub <br />dominated communities, total vegetation cover averages 45 percent <br />' (35 to 55 percent). Litter cover averages 30 percent and bare <br />soil 25 percent. Forage production for this site was estimated <br />to be 550 pounds per acre. <br />' THREATENED AND ENDANGERED SPECIES <br />' Two potentially threatened and endangered species have been <br />listed as occurring in central Grand County. Ousterhout Milkvetch <br />(Astragalus ousterhoutii) is listed as under review for possible <br />' J-2 <br />