Laserfiche WebLink
• Introduced perennial forbs averaged 31.4 percent of total vegetation cover. Cicer <br />milkvetch (Astragalus Cicer) and Alfalfa (Medicago saliva) accounted for nearly all of this <br />average. Canada thistle (Breea arvensis) contributed nearly all the balance. Native <br />perennial forbs averaged 3.3 percent of total vegetation cover. American vetch (Vicia <br />americana) accounted for just over one-third of this average. Together Porter aster (Aster <br />op rteri) and James starwort (Pseudostellaria iamesiana) contributed another one-third. Big <br />sagebrush (Seriphidium tridentatum), a native shrub, accounted for 0.2 percent of total <br />vegetation cover. <br />Total vegetation cover averaged 60.2 percent. Standing dead, litter, bare ground, and rock <br />cover values averaged 0.10, 27.20, 10.40, and 2.10 percent, respectively. Species density <br />averaged 29.8 species per 100 sq. m. <br />Herbaceous Production (Table 2) <br />Total herbaceous production for alfalfa averaged 560.3 pounds per acre. Total herbaceous <br />production for all other species averaged 2,366.1 pounds per acre. Total herbaceous <br />• production averaged 2,926.4 pounds per acre. <br />Shrub Density (Table 3) <br />Native shrub, the only woody life form observed in this unit, averaged 157.8 individuals per <br />acre. Chokecherry (Padus virginiana ssp. melanocaroa) accounted for just over two-fourths <br />of this average. Big sagebrush was also an important contributor. <br />Mountain Brush Reference (Photographs 5, 7, and 8) <br />Cover (Table 4) <br />Native shrub was the dominant life form in this unit with 70.1 percent of total vegetation <br />cover. Mountain snowberry (Svmohoricaroos rotundifolius) and Saskatoon serviceberry <br />(Amelanchier alnifolia) together accounted for nearly two-thirds of this average. Gambel's <br />oak (Quercus gambelii) was also an important contributor. Chokecherry and big sagebrush <br />were minor contributors. Native perennial forbs averaged 12.4 percent of total vegetation <br />cover. Horsemint (Monarda fistulosa ssp. menthifolia), nettle-leaf giant hyssop (Agastache <br />• urticifolia), and western yarrow (Achillea lanulosa) together accounted far half of this <br />average. Northern bedstraw (Galium seotentrionale), Tailcup lupine (Luoinus caudatus), <br />9 <br />