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Introduced perennial cool season grasses accounted for 36.5 percent of total vegetation cover.
<br />Intermediate wheatgrass provided nearly half of this lifeform's cover, but smooth brome was
<br />also important. Orchard grass, timothy, and Russian wildrye also contributed measurably to
<br />total vegetation cover. Desert wheatgrass, meadow brome, and tall fescue were present but did
<br />not contribute measurably to total vegetation cover. Native perennial cool season grasses and
<br />grass-like plants provided 6.7 percent of total vegetation cover. Nearly one-third was sheep
<br />fescue. Thickspike wheatgrass, slender wheatgrass, basin wildrye, western wheatgrass, Agassiz
<br />bluegrass, Canada bluegrass, beardless bluebunch wheatgrass, bluebunch wheatgrass, and green
<br />needlegrass provided the balance to this lifeform's total vegetation cover percentage. Minor
<br />species present included oniongrass, sun sedge (Carex pensylvanica ssp. helionhilal, mountain
<br />brome, Montana wheatgrass, mutton bluegrass (Poa fendlerianal, Letterman needlegrass (,~I'jt$
<br />lettermaniil, and Nelson needlegrass.
<br />Introduced annual and biennial (orbs accounted for 2.3 percent of total vegetation cover.
<br />Twolobed speedwell accounted for nearly three~uarters of this percentage. Alyssum (Alvssum
<br />desertoruml, yellow sweetclover, Russian thistle, Jim Hill mustard, and salsify all contributed
<br />to the remaining fraction of total vegetation cover. Littlepod falseflax, bull thistle, hound's
<br />tongue, prickly lettuce, early stickseed, tarweed, devil's shoestrings, pennycress, and tower
<br />mustard were also present. Native annual and biennial forts accounted for 3.5 percent of total
<br />vegetation cover, approximately equal parts of which were linearleaf collomia, microsteris, and
<br />baby blue-eyes. Western rockjasmine (Androsace occidentalisl, Fremont goosefoot,
<br />Richardson's tansymustard, denseflower pepperweed, and Douglas knotweed (Poiyggnum
<br />dou°Iasiil were also present.
<br />Measured shrub cover of 3.5 percent of total vegetation cover was provided by big sagebrush
<br />and mountain snowberry. Saskatoon serviceberry, rubber rabbitbrush, and Wood's rose were
<br />also present. Japanese brome, an introduced annual grass, accounted for 0.9 percent of total
<br />vegetation cover. Cheatgrass was also present.
<br />Total vegetation cover averaged 77.5 percent. Standing dead, litter, bare soil, and rock cover
<br />averaged 0.4, 17, 4.6, and 0.5 percent, respectively. Species density averaged 27.5 species
<br />per 100 sq. m.
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<br />15
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