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• SAGEBRUSH-SNOWBERRY TYPE <br /> This type is dominated by big sagebrush (Artemisia tridentata), and mountain <br /> snowberry. Commonly occurring grasses include Agassiz bluegrass, red fescue (Festuca <br /> rubra), Montana wheatgrass (Agropyron albicans), western wheatgrass (Agropyron <br /> smithii), and western needlegrass (Stipa occidentalis). Forbs include various species of <br /> lupine (Lupinus spp.), Oregon fleabane, aspen peavine, and American vetch. In 1979, <br /> percent vegetative cover was 75. <br /> ASPEN WOODLAND TYPE <br /> This type is dominated by quaking aspen (Po ulus tremuloides). Associated shrubs <br /> include mountain snowberry and Wood's rose (Rosa woodsii). Saskatoon serviceberry, <br /> common chokecherry and various species of currants (Ribes spp) occur in smaller <br /> amounts. Herbaceous species commonly present include Agassiz bluegrass, common <br /> dandelion, houndstongue, showy Frasera (Frasera s ep ciosa), aspen peavine, and Hook <br /> violet (Viola adunca). In a few stands, introduced forage grasses have become a major <br /> understory component. In 1979, percent cover was 92. <br /> SMOOTH BROME TYPE <br /> Areas which have been cleared of native vegetation and planted with smooth <br /> brome (Bromus inermus) are included in this type. The smooth brome type can be <br /> subdivided into degraded upland smooth brome pasture and mowed lowland smooth <br /> brome. <br /> In the degraded upland smooth brome pasture areas the smooth brome has, for the <br /> most part, become senescent and sparse. A variety of native grasses and forbs as well <br /> as weeds have moved in. Invading species include yarrow, common dandelion, knotweed <br /> (Polygonum sp.), Agassiz bluegrass, Western wheatgrass (Agropyron smithii), and onion <br /> (Allium spp.). <br /> The mowed lowland smooth brome represents lowland areas which are pre- <br /> dominantly smooth brome, but include varying amounts of orchard grass (Dact lis <br /> glomeratus) and timothy (Phleum pratense). These areas are usually mowed each year <br /> PR-31-7 -7- <br /> 6/10/93 <br />