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Keenesburg Mine Total veg - 52.0% <br /> Sample Date: 8/17/88 Total cover - 67.0% <br /> Location sampled: Area G, 1987 Bare soil - 33.0% <br /> Central Area <br /> Number of transects: 6 <br /> Warm season perennial grasses % Cover % Rel . Cover <br /> - An ropogon hall ! --- --- <br /> - Bouteloua gracilis 1 .0 1 .9 <br /> - Calamovilfa longifolia 1 .7 3.3 <br /> - Panicum virgatum --- --- <br /> - Sporobolus asper --- --- <br /> - Sporobolus cryptandrus 1 .0 1 .9 <br /> Cool season perennial grasses <br /> Agropyron cristatum 0.3 0.6 <br /> - Agropyron intermedium 0. 7 1 . 3 <br /> - Agropyron smithii --- --- <br /> - Agropyron trahycaulum --- --- <br /> - Bromus inermis 0.3 0.6 <br /> - Oryzopsis hymenoides --- --- <br /> Perennial/Biennial Forbs <br /> Unknown annua 2.3 4.4 <br /> - Helianthus petiolaris 1 .0 1 . 9 <br /> - Kochia scoparium --- --- <br /> - Salsola kali 43.7 84. 0 <br /> X = 52.0 S = 19.0 Nmin = 5. 5 (20% of true mean with 80% <br /> statistical confidence) <br />