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PRODUCTION <br />(Table A-12) <br />Total herbaceous production in 2015 was 745.9 pounds per acre, all of which was allowable herbaceous <br />production. Of this, 345.8 pounds were native perennial cool season grasses and 344.0 pounds were <br />native perennial forbs. Five other lifeforms, introduced annual grasses, introduced annual and biennial <br />forbs, native annual and biennial (orbs, introduced perennial cool season grasses, and introduced <br />perennial forbs, were present at less than 20 pounds per acre. <br />2015 Steep Mountain Brush Extended Reference Area <br />(Photographs 93 through 108) <br />COVER <br />(Table A-13) <br />Native shrubs were the predominant lifeform observed in the Steep Mountain Brush Reference Area, <br />contributing 31.9 percent vegetation cover. Of this, big sagebrush contributed 8.8 percent, Gambel's oak <br />contributed 8.6 percent, mountain snowberry contributed 6.6 percent, and eight other species contributed <br />less than 4.0 percent cover each. Native perennial cool season grasses also made a strong contribution <br />to cover, with 18.5 percent, followed by introduced annual grasses and native perennial forbs which <br />contributed 7.4 and 5.8 percent cover, respectively. Native perennial cool season grasses were <br />comprised of many species, of which Montana wheatgrass (Elymus lanceolatus ssp. albicans, 6.3 <br />percent), Agassiz bluegrass (4.1 percent), and bluebunch wheatgrass (Pseudoroegneria spicata spp. <br />Spicata, 3.6 percent) were the greatest contributors. Introduced annual grasses were comprised entirely <br />of Japanese brome (Bromus japonicas, 1.5 percent) and the C -List noxious weed cheatgrass (5.9 <br />percent), while native perennial forbs were comprised of many species with few -flower goldenrod <br />(Solidago velutina, 1.4 percent) and silver lupine (Lupinus argenteus, 1.3 percent) were the greatest <br />contributing species. Introduced annual and biennial forbs, native subshrubs, and native annual and <br />biennial forbs were present with less than 1.5 percent cover each. Also present were introduced <br />perennial forbs, introduced perennial cool season grasses, and succulents. Also observed in the area <br />were the B -List noxious weeds hound's tongue and dalmation toadflax. <br />Total average all -hit vegetation cover was 65.8 percent. Allowable all -hit herbaceous vegetation cover <br />was 27.3 percent. Cover by standing dead, litter, bare soil and rock averaged 1.0, 19.9, 17.7, and 6.4 <br />percent, respectively (first hit). Average species density was 23.1 species per 100 sq. m. <br />20 <br />