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Total average vegetation cover for first -hits was 74.3 percent. Allowable first -hit herbaceous cover was <br />44.4 percent. Cover by standing dead, litter, bare soil and rock averaged 0.5, 16.1, 9.1 and 0.0 percent <br />respectively. Average species density was 33.4 species per 100 sq. m. <br />PRODUCTION <br />(Table A -8) <br />Total herbaceous production in 2011 was 1,286.5 pounds per acre. Native perennial forbs and native <br />perennial cool season grasses were the biggest producers, contributing 733.4 and 458.6 pounds per <br />acre, respectively. Four lifeforms were present with less than 50 pounds per acre. <br />2012 Phase 111 BRB -5 <br />(Photographs 17 through 41) <br />COVER <br />(Table B -1) <br />Introduced perennial forbs were by a small margin the predominant lifeform observed in Area BRB -5, <br />contributing 12.5 percent total first -hit vegetation cover. Of this, alfalfa (Medicago sativa) contributed the <br />most with 11.4 percent. Introduced perennial cool season grasses were the second most abundant <br />lifeform contributing 11.3 percent total first -hit vegetation cover, composed predominately of intermediate <br />wheatgrass (Thinopyrum intermedium) and orchard grass (Dactylis glomerata). Additionally, native <br />perennial cool season grasses contributed 8.4 percent first -hit vegetation cover, consisting primarily of <br />basin wildrye (Leymus cinereus) and western wheatgrass (Pascopyrum smithii). Among the 83 species <br />of vascular plants encountered during quantitative sampling were the noxious weeds whitetop (Cardaria <br />draba), hound's tongue (Cynoglossum officinale), bull thistle (Cirsium vulgare), musk thistle (Carduus <br />nutans ssp. macrolepis) and Canada thistle (Breea arvensis). Only hound's tongue and Canada thistle <br />had measurable abundance (0.34 and 0.09 percent cover, respectively). <br />Total average vegetation cover for first -hits was 36.9 percent. Allowable first -hit herbaceous vegetation <br />cover was 35.8 percent. Cover by standing dead, litter, bare soil and rock averaged 4.3, 41.4, 13.7, and <br />3.8 percent, respectively. Average species density was 23.1 species per 100 sq. m. <br />15 <br />