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• TOP 20 PLANT SPECIES ON 1997 RECLAMATION AREAS <br />Area Sampled: Section 11 and West Pit <br />Location: Colowyo Coal Co.. L. P. <br />Date: July 1998 <br />NUMBER HITS SPECIES FREQUENCY DENSITY <br />1 121 Thlaspi arvense 42-48-54 .545-.654-.777 <br />2 111 Sa/so/a iberica 38-44-50 .478-.580-.693 <br />3 106 Agropyron spp. 36-42-48 .446-.545-.654 <br />4 105 Brome spp. 36-42-48 .446-.545-.654 <br />5 90 Achilles millefo/ium 30-36-42 .357-.446-.545 <br />6 61 Medicago sativa 19-24-30 .211-.273-.357 <br />7 55 Astragalus titer 17-22-28 .186-.248-.329 <br />8 50 Polygonum aviculare 15-20-26 .163-.223-.301 <br />9 49 Agropyron intermedium 15-20-26 .163-.223-.301 <br />10 42 Dactylis glomerata 12-17-22 .128-.186-.248 <br />11 42 Bromus marginatus 12-17-22 .128-.186-.248 <br />12 40 Liniumlewisii 11-16-21 .117-.174-.236 <br />13 31 Agropyron 8-12-17 .083-.128-.186 <br />14 29 Penstemon strictus 8-12-17 .083-.128-.186 <br />15 25 Penstemon palmerii 7-10-14 .073-.105-.151 <br />16 22 Cardus nutans 6-9-13 .062-.094-.139 <br />17 20 Lappula spp. 5-8-12 .051-.083-.128 <br />• <br />18 20 Artemisia tridentata 5-8-12 .051-.083-.128 <br />19 17 Ba/samorhiza sagittata 4-7-11 .041-.073-.117 <br />20 16 Taraxacum officinale 3-6-10 .030-.062-.105 <br />• <br />