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Table 1 Colow o - Vegetation Cover - 2007 <br />(Page 2 of 2) <br />Average Ground Cover Summary Continued <br />Area -> <br />Phase II <br />Mountain <br />Shrub R.A. <br />Sagebrush <br />R.A. <br />Weighted <br />Reference <br />Weight <br />1 Values <br />100% <br />1 55% <br />45% <br />Forbs Continued <br />N <br />P <br />Lupins caudatus <br />Tai cup Lupine <br />0.70 <br />0.25 <br />.5 <br />N <br />P <br />Lupins sp. <br />Lupine <br />- <br />- <br />0.05 <br />0.02 <br />N <br />B <br />Machaeranthera canescens <br />Hoary Aster <br />- <br />0.05 <br />- <br />0.03 <br />I <br />P <br />Medicago sativa <br />Alfalfa <br />0.90 <br />- <br />- <br />- <br />N <br />P <br />Penstemon pa /men <br />Palmer Penstemon <br />0.05 <br />- <br />- <br />- <br />I <br />A <br />Ranuncu lus tes&cu/atus <br />Nut Buttercup <br />0.05 <br />- <br />- <br />- <br />N <br />P <br />Senedo muldlobatus <br />Lobeleaf Groundsel <br />- <br />0.10 <br />- <br />0.06 <br />I <br />A <br />Sisymbrium aidssimum <br />Tumble Mustard <br />0.03 <br />- <br />- <br />- <br />N <br />P <br />Sphaerafcea coccinea <br />Scarlet Globemallow <br />- <br />- <br />0.05 <br />0.02 <br />N <br />P <br />Stenotus armenoides <br />Thrifty Goldenweed <br />- <br />- <br />2.10 <br />0.95 <br />I <br />A <br />Tlhfaspi arvense <br />Field Pennycress <br />0.05 <br />- <br />0.05 <br />0.02 <br />I <br />B <br />Tragopogon dubius <br />False Salsify <br />0.10 <br />- <br />0.10 <br />0.05 <br />rn enti is e <br />- <br />- <br />Shrubs, Cacti & Trees <br />Amelachier uta ens(s <br />U tah Serviceberry <br />- <br />0.80 <br />1.15 <br />N <br />P <br />Artemisia tridentata wyo. <br />Wyo. Big Sagebrush <br />1.25 <br />11.30 <br />10.00 <br />10.72 <br />N <br />P <br />Amp /ex can escens <br />Four -wi ng Saltbush <br />0.10 <br />- <br />- <br />- <br />N <br />P <br />Ceratoidesfanata <br />Winterfat <br />- <br />- <br />0.20 <br />0.09 <br />N <br />P <br />Chrysothamnus nauseosus <br />Rubber Rabbitbrush <br />- <br />0.30 <br />- <br />0.17 <br />N <br />P <br />Chrysothamnus visddiflorus <br />Low Rabbitbrush <br />- <br />0.30 <br />0.40 <br />0.35 <br />N <br />P <br />Guberrezia sarothrae <br />Snakeweed <br />- <br />- <br />1.05 <br />0.47 <br />N <br />P <br />Mahonia repens <br />Creeping Barberry <br />- <br />0.05 <br />- <br />0.03 <br />N <br />P <br />Purshia bfdentata <br />Antelope Bitterbrush <br />0.03 <br />- <br />- <br />N <br />P <br />QuercusgambeUii <br />Gambel Oak <br />0.13 <br />2.75 <br />- <br />1.51 <br />N <br />P <br />Symphoncarpos oreophi /us <br />Mountain Snowberry <br />0.03 <br />4.40 <br />2.20 <br />3.41 <br />Total Plant Cover <br />66.85 <br />56.35 <br />57.25 <br />56.76 <br />Rock <br />0.53 <br />0.65 <br />2.95 <br />1.69 <br />Litter <br />21.10 <br />1 <br />33.60 <br />29.05 <br />31.55 <br />Bare ground <br />11.53 <br />9.40 <br />10.75 <br />10.01 <br />Total Perennial Coverl <br />58.25 1 <br />51.35 1 <br />41.95 1 <br />47.12 <br />Summary by Lifeform: <br />Perennial Grasses <br />50.60 <br />29.30 <br />22.30 <br />26.15 <br />Annual Grasses <br />7.88 <br />4.55 <br />12.75 <br />8.24 <br />Perennial Forbs <br />6.13 <br />2.15 <br />4.65 <br />3.28 <br />Annual & Biennial Forbs <br />0.67 <br />0.45 <br />2.55 <br />1.40 <br />Noxious / Aggressive Weeds <br />0.05 <br />- <br />- <br />- <br />Shrubsi <br />1.53 1 <br />19.90 1 <br />15.00 1 <br />17.70 <br />Sample <br />Adequacy Calculations: <br />Mean = <br />66.85 <br />56.35 <br />57.25 <br />Variance = <br />78.644 <br />83.397 <br />148.934 <br />n = <br />40 <br />20 <br />20 <br />nmo, = <br />2.99 <br />4.63 <br />8.01 <br />Colowyo Mine 16 Phase II Bond Release - 2007 <br />