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Table 2 Colo o - Vegetation Cover - 2008 & 2009 (Page 2 of 2) <br />qE e� o Co�� h - op <br />Sampling Year -> 2008 2009 <br />Mountain Sagebrush Mountain Sagebrush <br />Area -> Phase III Phase III <br />Shrub R.A. R.A. Shrub R.A. R.A. <br />Wei ht -> 100% 55 45% 100% 55% 45% <br />Forbs Continued <br />I B Lactuca servo /a Prickly Lettuce <br />0.28 <br />N P Lathyrus ieucanthus Peavine <br />- <br />- <br />- <br />- <br />- <br />- <br />N A Lepidium densiflorum Prairie Pepperweed <br />- <br />1.67 <br />- <br />1.63 <br />- <br />N P Unum iewisii Lewis Flax <br />1.41 <br />0.16 <br />- <br />- <br />- <br />N P Lomadum dissectum Fernleaf Biscuitroo <br />- <br />- <br />0.35 <br />0.10 <br />N P Lupinus caudatus Tailcup Lupine <br />- <br />0.17 <br />- <br />- <br />N B Machaeranthera canescens Hoary Aster <br />- <br />7.22 <br />- <br />3.83 <br />1.34 <br />I P Medicago sativa Alfalfa <br />5.37 <br />- <br />0.08 <br />- <br />I P Onobrychis Wdaefoiia Sainfoin <br />0.09 <br />- <br />6.25 <br />- <br />- <br />N P Ph /ox hoodii Hood Phlox <br />- <br />I A Ranunculus testicu/atus Nut Buttercup <br />0.19 <br />0.35 <br />- <br />0.10 <br />N P Senecio muitiiobatus Lobeleaf Groundsel <br />- <br />- <br />- <br />- <br />I A Sisymbnum aitissimum Tumble Mustard <br />0.19 <br />0.16 <br />N P Sphaeraicea coccinea Scarlet Globemallow <br />- <br />- <br />- <br />- <br />N P Ste / /aria jamesia Tuber Starwort <br />0.33 <br />0.69 <br />- <br />0.31 <br />N P Stenotus armerioides Thrifty Goldenweed <br />- <br />- <br />- <br />0.57 <br />- <br />I P Taraxacum officinaie Dandelion <br />0.09 <br />0.24 <br />2.68 <br />0.24 <br />1.96 <br />I A 7hiaspiarven Field Pennycress <br />0.19 <br />0.08 <br />- <br />I B Tragopogon dubius False Salsi <br />0.28 <br />0.24 <br />- <br />0' <br />0.49 <br />- <br />I B Tragopogon dubius False Salsi <br />0.16 <br />0.52 <br />- <br />0.21 <br />Sub - shrubs <br />N P Ceratoides ianata Winterf <br />- <br />0.86 <br />- <br />0.31 <br />N P Eriogonum microthecum Slender Buckwhe <br />- <br />0.26 <br />- <br />N P Gutierreziasarothrae Snakewe <br />- <br />5.01 <br />5.58 <br />N P Mahonia repens Creeping barber] <br />- <br />0.40 <br />Shrubs & Trees <br />N P Ameiachierainifoiia Serviceberry <br />0.33 <br />0.87 <br />0.86 <br />0.98 <br />2.17 <br />N P Artemisia tridentata wyo. Wyo. Big Sagebrush <br />- <br />19.52 <br />16.51 <br />0.18 <br />17.29 <br />20.06 <br />N P A triplex canescens Four -wing Saltbush <br />- <br />- <br />0.04 <br />- <br />- <br />N P Chrysothamnus nauseosus Rubber Rabbitbrush <br />0.56 <br />0.09 <br />- <br />0.24 <br />1.03 <br />N P Chrysothamnus viscidiAorus Low Rabbitbrush <br />2.30 <br />0.43 <br />1.55 <br />1.14 <br />N P Prunus virginiana Chokecherry <br />- <br />0.16 <br />- <br />0.08 <br />- <br />N P Quercusgambeiiii GambelOa <br />0.05 <br />3.49 <br />3.83 <br />N P Rosa sp. Ornamental rose <br />- <br />- <br />- <br />- <br />- <br />N P Symphoricarpos oreophi /us Mountain Snowberry <br />10.40 <br />2.68 <br />12.23 <br />5.27 <br />Summa " b Lifefo�rm <br />a <br />Perennial Grasses <br />70.53 <br />37.46 <br />28.26 <br />71.64 <br />44.70 <br />42.09 <br />Annual Grasses <br />5.27 <br />9.84 <br />38.12 <br />1.92 <br />10.03 <br />17.68 <br />Perennial Forbs <br />22.08 <br />12.22 <br />5.01 <br />25.41 <br />8.24 <br />4.24 <br />Annual & Biennial Forbs <br />1.74 <br />2.62 <br />1.90 <br />0.80 <br />0.82 <br />0.41 <br />Noxious / Aggressive Weeds <br />- <br />0.16 <br />- <br />- <br />- <br />- <br />Sub- shrubs <br />- <br />0.40 <br />6.14 <br />- <br />- <br />5.89 <br />Shrubs & Trees <br />0.38 1 <br />37.30 <br />1 20.57 <br />1 <br />29.68 <br />witietweerL3 �o 0 /o i2elaive Eover) <br />D��ie�simbrlffGrasses . r (FoxbatveCo <br />e o <br />r a <br />�° <br />a r <br />Number of Perennial Grasses = <br />7 <br />6 <br />4 <br />5 <br />5 <br />3 <br />Forb Relative Cover % = <br />23.82 <br />14.84 <br />6.91 <br />26.22 <br />9.05 <br />4.65 <br />CEDAR CREEK ASSOCIATES, Inc. Page 24 Rio Tinto Energy America - Colowyo Mine <br />2009 Phase III Bond Release Evaluation - Year 2 <br />