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~ ~ t• ~ ~ ~ ~ t• ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ <br />Table 14. TRENDS IN MEAN COVER FOR THE PORTION OF THE RECLAIMED AREA SEEDED IN 1984. WALDEN COAL <br />PROJECT SITE. BASED ON DATA COLLECTED BETWEEN 1989 AND 1997. MEAN COVER VALUES IN PERCENT. <br />w <br />N <br />Yeu 1989 1990 1991 1992 1993 1994 1995 1996 1997 <br />Sample Size 6 6 6 6 6 6 6 6 15 <br /> <br />PERENNIAL FORBS <br />Achilles lanulosa 0.00 <0.01 0.00 <0.01 <0.01 <0.01 0.33 <0.01 0.07 <br />Agoseris glauca 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 0.00 0.00 <br />Antennaria parvtjolia 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 <br />Arabis sp. 0.00 0.00 0.00 0.00 <0.01 0.00 0.00 0.00 0.00 <br />Astragalus titer 0.00 0.33 0.00 0.00 <0.01 0.00 0.00 0.00 <0.01 <br />Astragalus crassica-pus 0.00 <0.01 0.00 0.00 0.00 0.00 0.33 0.00 0.00 <br />Astragalus kentrophyta 0.00 0.00 <0.01 0.00 0.00 0.00 <0.01 <0.01 <0.01 <br />Astragalus spatulatus 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 <0.01 0.00 <br />Castilleja chromosa 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 <br />Musineon divaricatum 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 0.00 0.00 <br />Penstemon strlctus 0.00 0.00 0.00 <0.01 <0.01 0.00 <0.01 <0.01 <O.OI <br />Potentilla sp. 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 0.00 0.00 <br />Rumex salicifolius 0.00 0.00 <0.01 0.00 <0.01 <O.OI <O.OI <0.01 0.00 <br />Senecio sp. 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 0.00 0.00 <br />Taraxacum ofjicinale 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 0.00 <O.OI <br />Tragapogon dubius 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 <br />Subtotal 0.00 0.35 0.02 0.02 0.05 0 0.75 0.05 0.07 <br /> <br />ANNUAL AND BIENNIAL FORBS <br />Chenopodium pratericola 0.00 <0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 <br />Cirstum scariosum 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 <0.01 <br />Cordylanthus wrightit 0.00 0.00 0.00 0.00 0.00 <O.OI <0.01 <0.01 <0.01 <br />Machaeranthera canescens 0.00 0.00 0.00 <0.01 <O.OI <0.01 <0.01 <0.01 0.00 <br />Subtotal 0.00 <0.01 0.00 <0.01 <0.01 0 0.02 0.02 <0.01 <br />