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Table 3. Average percent floristic composition of plant cover on the sage- <br /> brush type on th e Rock Castle mine lease south of Hayden, Colorado <br /> (August 1980). <br /> <br /> <br />' <br /> Cluster number <br /> Species 1 4 5 11 12 18 Average <br /> Grasses <br /> <br />Agropyron smithii <br />A <br />h <br />li <br />0 <br />7 <br />3 <br />0 <br />2 <br />4.8 <br />62.1 <br />11.6 <br />0 , <br />13.0. <br />5 <br /> gropyron trac <br />um <br />ycau . .2 0 0 0 11.9 3.5 ,~, <br /> Bramopsis porteri 0 0 0 2.1 0 1.8 0.7 <br /> Bromus carinatus 2.4 0.9 0 0.7 0 0 0.7 <br /> Bromus tectorum 0 0 0 0.7 0 0 0.1 <br /> Carex occidentalis 0.6 0.4 0.4 0 1.4 4.1 1.2 <br />' Festuca ovina <br />Poa fendeleriana 0 <br />0 0 <br />0 16.2 <br />0 0 <br />0 13.9 <br />7.4 0.5 <br />0 5..1~ <br />1.2 <br /> Poa pratensis 46.0 23.2 20.1 18.2 12.0 23.4 23.8 ~ <br /> Sitanion hystrix 0.3 0.9 0.4 0 0 0.5 0.4 <br /> Stipa comata 7.9 38.2 0 0 0 43.8 15.0 ~ <br />' Stipa lettermanii 12.9 17.2 37.1 1.3 37.0 3.2 18.0 ~ <br /> Forbs <br />' Achillea lanulosa 11.1 9.0 2.6 0.7 4.6 1.4 4.9 <br /> Agastache urticifolia 5.3 0.4 0 0 0 0.5 1.0 y <br /> Aster adscendens 0 0 7.4 0 0 0 1.2 ~ <br />1 Aster engelmannii 0.3 0 0 9.1 7.4 0.5 2.8 ~/° <br /> Carum gairdneri 0.3 1.7 0 0 0 0.5 0.4 ~ <br /> Galium boreale <br />Geranium richardsonii 0 <br />0 0 <br />0 0 <br />0.4 0 <br />0 0 <br />0 1.1 <br />0.5 0.2 \ <br />0.2 <br /> Lathyrus leucanthus 0.6 0 0 0 0 0 0.1 <br /> Lupinus caudatus 2.4 0 0 0 0 2.8 0.8 <br /> Polygonum douglasii 0.6 1.3 2.6 6.5 1.4 0.9 2.2 <br />' Thalictrum fendleri 0 0 0 0 0 0 0.0 <br /> Vicia americana 0.3 1.3 3.9 0.7 2.8 3.2 2.0 <br /> Viguiera multiflora 1.8 3.4 0 0 0 0 0.8 <br />t Viola canadensis 0 0 0 0 0 0 0.0 <br /> Antenaria sp. 0 0 0 0.4 0 0 0.1 <br /> Cushion plants 0.6 0 0 0 0 0 0.1 <br />' Eriogonium sp. 0 0 3.1 0 0.5 0 0.6 <br /> Potentilla sp. 0 0 0 0 0 0 0.0 <br /> Miscellaneous 0 0 0 0 0 0.5 0.1 <br /> <br />t <br />s/~ 3~ <br />1 <br />~~" ~~r~ ~e ~.-~~res <br />i <br />