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34 <br />• Table 9. Production means (x) in gms/mz for the affected area and <br />reference area of the 'willow Carr vegetation type. Allen Mine, CF&I <br />Steel Corporation, July -August, 1981. <br />Affected Reference <br />Species or Area Area <br />Category x x <br />Grasses <br />Acropyron spp. <br />0.5 <br />0.9 <br />Bromus ailiatus <br />4.4 <br />2.5 <br />3romus inermis <br />-- <br />1.2 <br />Carex SPP. <br />8.5 <br />12.5 <br />Juncus spp. <br />4.0 <br />7.8 <br />Phalaris arundinacea <br />-- <br />10.6 <br />Poa pratensis <br />7.7 <br />0.2 <br />Poa spp. <br />6.0 <br />-- <br />Stipa robusta <br />-- <br />3.9 <br />Forbs <br />Annual forbs <br />0.8 <br />0.3 <br />Perennial forbs <br />-- <br />9.4 <br />Achillea miZZefoZium <br />1.0 <br />-- <br />Ambrosia trifida <br />41.4 <br />-- <br />Arctium minus <br />-- <br />3.5 <br />•� Artemisia dracuncuZus <br />10.5 <br />46.6 <br />Cirsium arvense <br />22.5 <br />20.2 <br />Cirsium fZodmanii <br />0.6 <br />1.8 <br />Cynoglossum officinaZe <br />11.3 <br />27.7 <br />crigeron formosissimus <br />0.3 <br />11.7 <br />Geum macrophyllum <br />1.4 <br />-- <br />Glycyrrhiza Zepidota <br />3.4 <br />-- <br />Humulus ZupuZus <br />16.4 <br />-- <br />Lactuca tatarica <br />-- <br />0.4 <br />Ligusticum porseri <br />1.8 <br />-- <br />Linarxa vulgazVs <br />15.7 <br />33.7 <br />Mentha spicata <br />1.0 <br />-- <br />Mertensia spp. <br />8.9 <br />-- <br />PotentiZla hipriana <br />0.4 <br />-- <br />Pctentilla spp. <br />0.3 <br />-- <br />Rudbeckia hirta <br />0.5 <br />-- <br />Scrophularia Zanceolata <br />0.4 <br />-- <br />Senecio spp. <br />-- <br />0.1 <br />Smilacina stellata <br />9.1 <br />-- <br />SoZidago aZtissima <br />56.9 <br />17.2 <br />Thalictrum dasyphulZum <br />0.5 <br />-- <br />Verbena stricta <br />1.5 <br />1.4 <br />Viguiera muZtiflora <br />2.3 <br />1.0 <br />X s <br />X S <br />•, Total Production <br />240.0 122.4 <br />214.3 94.8 <br />