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e ESPEY, HUSTON 3ASSOCIATES, INC. • and Woods rose. Shrubs present on the area but not encountered on transects were chokecherry and wax currant. Cool season mid-grasses aze the dominant graminoids. Lettermans needlegrass (Stipa lettermanii), a bunchgrass with a cover of 6.4 percent, and Canada bluegrass . (Pon compressa), a sod grass with a cover of 5.1 percent, aze dominant. Western wheatgrass (Agropyron smithii) and bluegrass (Pon agassizensis) are common grasses with 3.7 and 2.1 percent cover, respectively. Basin wildrye (Elymus cinereus), a tall perennial bunchgrass, forms small clumps in moist sites scattered throughout this community. Other graminoids present but infrequent include: Baltic rush (Juncos azcticus), fieldclustered sedge (Cazex praegracilis), Thurber fescue (Festuca thurberi), Indian ricegrass (Oryzopsis hymenoides) and elk sedge (Cazex cf. geyeri). The forb cover is chazacterized by perennial species. Dominant forbs • aze Pacific aster (8.0 percent cover), as aggressive colonizer of disturbed soils and mountain lupine (Lupinus ammophilus) (7.6 percent cover), a tall forb favoring disturbed habitats. Other common forbs include: western yazrow (Achillea lanulosa) (4.8 percent cover) and prairie sedge (Artemisia ludoviciana) (4.5 percent cover). Shrub Density and Height Big sagebrush is the most common shrub in this community (2,881 plants per acre) followed by rubber rabbitbrush (1,026 plants per acre), Douglas rabbitbrush (771 plants per acre), mountain snowberry (680 plants per acre) and Woods rose (641 plants per acre). Shrubs occurring infrequently aze serviceberry (65 plants per acre) and chokecherry (5 plants per acre). Wax currant was present in the sample area, but did not occur in the sample quadrat. Seedling production is high for big sagebrush (356 plants per acre). Mean shrub canopy height ranged from 48 centimeters for big sagebrush to 23 centimeters for Woods rose (see Table K-4). u K-20