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Table 9. Cover Data -Mountain Brush Extended Reference Area for the Seneca IIW Mine, Yoast Mine, SCC, Page 4 of 4 Routt Co., CO - 2005 • PLANT SPECIES Perent Foliar Cover` • --Sample Number--- 4 5 6 7 8 9 10 INTRODUCED PERENNIAL FORBS Taraxacum officinale 1 P TOTAL INTRO. PERENNIAL FORBS 1 --- -- P -- --- --- --- --- -- NATIVE PERENNIAL GRASSES (cool) Achnatherum hymenoides P Achnatherum lettermanii 1 P Achnatherum nelsonii (1) P P P 1 P P Bromopsis canadensis P 1 Carex geyed 2(2) (3) 3(6) (1) 1(1) 2(2) Carex pensylvanica ssp. heliophils 1 1 P 5(1) P P Ceratochloa cadnata P P 3(4) 1 P 1 P P Elymus elymoides (1) P Elymus glaucus P (1) Elymus lanceolalus fm. albicans P (1) (1) 2(2) P P P Elymus lanceolatus fm. dasystachya P P Elymus trachycaulus 2(1) (1) 3(4) 3(3) 4(2) P (2) 2(1) 2 Hesperostipa somata P 1 P 2 P P Koeleria macrantha P Pascopyrum smithii P Poa agassizensis 3(5) 6(5) 6(5) 3(4) 3 1(2) 1 6(4) 5(6) 5(i) Poa palustris P Poa secunda P TOTAL NATIVE PERENNIAL GRASSES c 7 9) 8(10) 16 20 8(8) 9(4 2 3 7(2) 9 6) 7(7) 10 4) INTRODUCED PERENNIAL GRASSES (cool) Bromopsis inermis P TOTAL INTRO. PERENNIAL GRASSES c) --- - --- --- -- --- - --- P --- NATIVE SHRUBS Amelanchier alnifolia 12(1) 1 4 1 4 3 5 3(4) 4 Chryso[hamnus viscidiflorus 1 Mahonia repens P P. Padus virginiana ssp. melanocarpa 11(3) 6 2(1) 7(9) P (2) 2(3) 7(2) Purshia tridentata P Ouercus gambelii 6 24 44 51(1) 21 31(2) 23(1) 34 45 33 Rosa sayi 1 Seriphidium tridenta[um 1 1 2 2 1 1 S mphoricar os rotundifolius 16 4 19 5 8 3 4 10 7 10 2 4 2 10 3 12 8 9 13 TOTAL NATIVE SHRUBS 46 8 50(5) 58(4) 64 10 37(7) 44(4 35 3) 45(5 62(15) 55(15 Scantling dead 2 1 3 1 1 1 1 1 4 Liner 15 22 13 12 22 31 26 17 22 19 Bare soil 18 10 6 7 22 12 18 24 2 i Rock 1 ~1 1 1 8 TOTALS 100 100 100 100 100 100 100 100 100 100 TOTAL VEGETATION COVER 64(26) 67(24 78 30) 79(32) 54 12) 55(9) 47 8 59(13) 75(27) 76(25 GROUND COVER (Litter+ROCk+Veg+St.Dead) 82(26) 90(24) 94(30) 93(32) 78(12) 88(9) 82(8) 76(13) 98(27) 99(25) SPECIES DENSITY (# of species/100 sq.m.) 27 36 27 26 29 25 31 24 27 31 AVERAGE=28.3 Std.Dev.= 3.6 'P=Present within tm. on either side of the cover transect, but not quantitatively encountered.