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Keenesburg Mine Total Vegetation - 48.4 <br /> Sample Date - 9/21 /88 Total Cover - 83.2 <br /> Location Sampled - Osgood Sand Fenced Bare Soil - 16.8 <br /> Reference Area <br /> Number of Transects - 5 <br /> Warm Season Perennial Grasses % Cover % Rel Cover <br /> - Andropogon hallii 5.2 10.7 <br /> - Bouteloua gracilis 11 .6 24.0 <br /> - Calamovilfa longifolia 1 .2 2.5 <br /> - Sporobolus cryptandrus 0.4 0.8 <br /> Subtotal 18.4 38.0 <br /> Cool Season Perennial Grasses <br /> - Agropyron smithii -- -- <br /> - Oryzopsis hymenoides 2.0 4.1 <br /> - Stipa comata 8.8 18.2 <br /> Subtotal 10.8 22.3 <br /> Annual Forbs and Grasses <br /> - Ambrosia psilostachya 0.8 1 .7 <br /> - Bromus tectorum 0.4 0.8 <br /> Subtotal 1 .2 2.5 <br /> Shrubs <br /> - Artemisia filifolia 18.0 37.2 <br /> X = 48.4 S = 13.2 Nmin = 3.1 (20% of true mean, with <br /> 80% statistical confidence) <br />