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Table 2.04.10 -21 <br />Mean Cover (percent) and Frequency Values For The Sagebrush -1 Vegetation Type, <br />New Horizon 2 Permit Expansion Study Area, 1999 <br />SPECIES MEAN PERCENT COVER (N =55) FREQUENCY <br />Annual Grasses <br />Anisantha tectorum 6_8 41 <br />Total Annual Grasses 6.8 -- <br />Perennial Grasses <br />Bouteloua gracilis <br />5.1 <br />29 <br />Oryzopsis hymenoides <br />0.2 <br />01 <br />Hilaria jamesii <br />0.1 <br />01 <br />Sitanion longifolium <br />0.4 <br />02 <br />Stipa neomexicana <br />1_7 <br />13 <br />Total Perennial Grasses <br />7.5 <br />-- <br />Perennial Forbs <br />Cirsium Arvense <br /><0.1 <br />01 <br />Leptodactylon pungens <br />0.3 <br />02 <br />Sonaeralcea coccinea <br />0.1 <br />01 <br />Taraxacum officinale <br /><0.1 <br />01 <br />Total Perennial Forbs <br />2.6 <br />-- <br />Shrubs <br />Artemisia tridentata <br />13.9 <br />47 <br />Atriplex canescens <br />0.9 <br />01 <br />Ephedra viridis <br />0.1 <br />01 <br />Eurotia lanata <br />0.2 <br />01 <br />Gutierrezia sarothrae <br />1_1 <br />10 <br />Total Shrubs <br />16.2 <br />— <br />Trees <br />Juniperus osteosperma <br />0.4 <br />02 <br />Pinus edulis <br /><0.1 <br />01 <br />Total Trees <br />0.4 <br />-- <br />Succulents <br />Opuntia polyacantha <br />0.3 <br />03 <br />Yucca glauca <br />0_1 <br />01 <br />Total succulents <br />0.3 <br />— <br />Micsellaneous <br />Litter 23.0 <br />Bare 37.1 <br />Rock Fragments 6.1 <br />Total Miscellaneous 66.2 <br />Minimum Sample size required (n m;n )= 44 (based on total living cover) <br />(Revised October 2009) 2.04.10-81 <br />