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1 1 The single woody plant represented in cover sampling was Chrysothamnus nauseosus (Rubber Rabbitbrush) at 0.8% mean cover and 6.2% relative cover. Chrysothamnus nauseosus is a rapid native invader of disturbed areas in the west. ' Herbaceous Production ' Total herbaceous production on this treatment plot was 29.36 g/m2 (261.3 lb/ac). Bromus japonicas/tectorum dominated the herbaceous production at 16.0 g/m2 or 54.5% of total production, while the perennial grasses Hilaria jamesu and Agropyron smithii accounted for 1.56 g/m2 (5.3°Jo) of the total production. Nine annual forbs ' produced 11.8g/mz for 40.2% of the herbaceous production. Herbaceous production results for this treatment are found in Table 4. W Pl D i d Di i d ant ens ty an mens oo y ons ' Thirty-two woody plants were counted on this plot for a density of 465/acre. Three species were present with Chrysothamnus nauseosus dominating. The largest woody plant was a Chrysothamnus nauseosus individual measuring 77 cm high and 101 cm in diameter. Woody Plant information is presented in Tables 29 and 30 for all Test Plots and the North and South Areas. ' Species Diversity Five lifeforms were represented on this treatment. They included four perennial grasses, one annual grass, three annual forbs, one woody plant, and one cryptogam. Of these, four perennial grasses, one annual grass, three annual forbs, and one woody ' plant represented species with greater than three percent relative cover. Species diversity information for all Test Plots, North and South Areas, and the Shadscale Shrubland Reference Area is presented in Table 31. 3.2.2 Test Plot 1: 12" ' Cover ' Total vegetation cover for this treatment was 26.0%. Graminoids accounted for 24.0°!0, annual forbs for 1.6% and woody plants 0.430. Cryptogams provided 1.2% ' total wver. Litter accounted for 26.0% total cover, rock 0.4%, and bare ground 46.4%. Cover results for this treatment are listed in Table 5. 30