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Table i Colo o Vegetation Cover 2008 & 2009 (Page 1 of 2) <br />011. �e aeGrou�d Co�ieSummary 1 W. k <br />r,,., ri,. , ' Pecceiik Gmun 6ovet o m , rtfCeP.(n9 <br />Sampling Year -> 2008 2009 <br />Mountain Sagebrush Weighted Phase III Mountain Sagebrush Weighted <br />Area -> Phase III <br />Reference Reference <br />Wei ht -> 100% 55 °h 45 °h 100% 55% 45% <br />Grasses and Grass -likes <br />N P Agropyronalbicans Griffiths Wheatgrass <br />1.95 <br />3.05 <br />2.45 <br />- <br />0.45 <br />1105 <br />5.22 <br />I P Agropyron cristatum Crested Wheatgrass <br />9.50 <br />- <br />0.05 <br />0.02 <br />- <br />9.23 <br />20.20 <br />0.30 <br />0.14 <br />N P Agropyron dasystachyum Thickspike Wheatgrass <br />14.90 <br />I P Agropyron intemredium Intermediate Wheatgrass <br />- <br />0.70 <br />_ <br />_ <br />N P Agropyron r/panum Streambank Wheatgrass <br />6.43 <br />2.13 <br />- <br />2.60 <br />- <br />4.25 <br />- <br />3.34 <br />4.50 <br />9.37 <br />1.75 <br />100 <br />1.41 <br />N P Agropyronsm/th/i Western Wheatgrass <br />N P Agropyron sp/catum Bluebunch Wheatgrass <br />0.17 <br />0.23 <br />N P Agropyron spkatum inerme Beardless Bluebunch W. <br />0.90 <br />- <br />- <br />2.04 <br />6.30 <br />3.47 <br />N P Agropyron trachycaulum Slender Wheatgrass <br />0.73 <br />3.70 <br />I P Agropyron tr/chophofum Pubescent Wheatgrass <br />- <br />- <br />0.07 <br />4.13 <br />- <br />0.70 <br />- <br />0.32 <br />I P Bromus /nerm /s Smooth Brome <br />Japanese Brome <br />6.00 <br />2.47 <br />- <br />7.95 <br />3.58 <br />0.77 <br />5.05 <br />2.50 <br />3.90 <br />I A Bromusjapon/cus <br />N P Bmmus marg /flatus Mountain Brom <br />0.07 <br />1.65 <br />- <br />0.91 <br />0.13 <br />3.20 <br />- <br />1.76 <br />I A Bromus tectonfm Cheatgrass <br />1.27 <br />6.20 <br />14.10 <br />9.76 <br />0.67 <br />1.10 <br />6.00 <br />3.31 <br />N P Camxgeyen Elk Sedge <br />- <br />0.90 <br />- <br />0.50 <br />- <br />0.20 <br />- <br />0.11 <br />I P Dactyl /sglomerata Orchardgrass <br />0.17 <br />- <br />- <br />0.17 <br />N P E/ymusc /nereus Basin Wildrye <br />3.37 <br />1.70 <br />I P Elymusjunceus Russian Wildrye <br />0.93 <br />0.20 <br />_ <br />N P Festuca ovina /sax /rnontana Hard Fescue <br />0.10 <br />0.93 <br />N P Hordeumjubatum Foxtail Barley <br />N P Koeler/a macrantha Prairie Junegrass <br />0.10 <br />0.03 <br />0.15 <br />4.90 <br />2.29 <br />- <br />- <br />4.30 <br />1.94 <br />I P Ph/eum pratense Timothy <br />/s Bluegrass <br />0.13 <br />- <br />- <br />4.90 <br />- <br />- <br />2.70 <br />0.10 <br />- <br />- <br />8.60 <br />- <br />2.50 <br />- <br />5.86 <br />N P Poa agas/zens <br />I P Pca bulbosa Bulbous bluegrass <br />0.03 <br />- <br />- <br />- <br />I P Poa pratensis Kentucky Bluegrass <br />4.07 <br />- <br />0.10 <br />0.05 <br />1.67 <br />N P Poa secunda Sandberg Bluegrass <br />0.13 <br />0.20 <br />3.65 <br />1.75 <br />0.13 <br />0.40 <br />0.18 <br />N P S /tan /on hystrix Bottlebrush Squirreltail <br />0.03 <br />0.35 <br />0.35 <br />0.35 <br />0.10 <br />0.05 <br />N P St /pa lett -n /i Letterman Needlegrass <br />4.65 <br />2.56 <br />3.50 <br />1.93 <br />N P St /pa nelson // Nelson Needlegrass <br />2.55 <br />1.40 <br />3.40 <br />1.87 <br />N A Vulp /a octoflora Six -weeks Fescue <br />0.05 <br />0.02 <br />Forbs <br />N P AcNllea lanuosa Western Yarrow <br />- <br />0.50 <br />0.05 <br />0.30 <br />0.07 <br />0.55 <br />0.30 <br />N P Allium textile Wild Onion <br />0.03 <br />0.20 <br />0.11 <br />- <br />- <br />N A Alyssum alyssoides Pale Madwort <br />0.20 <br />0.10 <br />0.65 <br />0.35 <br />0.10 <br />- <br />0.10 <br />0.05 <br />N P Amica lat /foGa Broadleaf Arnica <br />- <br />- <br />- <br />0.05 <br />- <br />0.03 <br />I P Astragalus titer Cicer Milkvetch <br />10.30 <br />14.23 <br />- <br />- <br />N P Asbagalus miser Timber Milkvetch <br />0.13 <br />N P Astragalussp. Milkvetch <br />- <br />0.05 <br />0.02 <br />- <br />- <br />N P Astragalus tenel /us Looseflower Milkvetch <br />0.10 <br />0.35 <br />0.21 <br />0.15 <br />0.07 <br />I A Came//na microcarpa Littlepod false flax <br />- <br />0.05 <br />0.02 <br />- <br />- <br />N P Ors /um undulatum Wavyleaf Thistle <br />- <br />0.05 <br />0.02 <br />Nw B C/rs /um vulgare Bull Thistle <br />0.10 <br />- <br />0.06 <br />N A Co/linsia pary /flora Blue -eyed mary <br />0.60 <br />0.33 <br />0.17 <br />N A Collom /a lineans Slenderleaf Collomia <br />0.03 <br />0.60 <br />0.05 <br />0.35 <br />0.10 <br />0.15 <br />- <br />0.08 <br />N P Cfepisacum/nata Tapertip Hawksbeard <br />- <br />- <br />- <br />- <br />- <br />- <br />0.05 <br />0.02 <br />I B Daucus camta Queen Anne's Lace <br />0.03 <br />- <br />- <br />- <br />- <br />" <br />N P Gal /um bifol /um Twinleaf Bedstra <br />1.05 <br />0.58 <br />0.55 <br />N A Gayophytum nuttallii Dwarf groundsmoke <br />0.03 <br />- <br />- <br />- <br />- <br />N B GhnoWla squarrosa Curlycup Gumweed <br />0.13 <br />0.20 <br />JO.30 <br />I B Lactuca sefnola Prickly Lettuc <br />0.20 <br />N P Lathyrus leuLanthus Peavin <br />- <br />1.05 <br />0.58 <br />1.00 <br />N A Le /d /um densiflorum Prairie Pe rweed <br />- <br />0.10 <br />0.06 <br />- <br />CEDAR CREEK ASSOCIATES, Inc. Page 21 Rio Tinto Energy America - Colowyo Mine <br />2009 Phase III Bond Release Evaluation - Year 2 <br />