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I 11 u i~ Table 16. Cover Data -Alkali Sagebrush Reference Area, Seneca II Mine, SCC, Routt Co., CO - 2004 PLANT SPECIES RELATIVE AVERAGE VEGETATION COVER FREQUENCY COVER Page 1 of 4 RELATIVE AVERAGE VEGETATION COVER-ALL COVER-ALL (%) (%) NATIVE ANNUAL & BIENNIAL FORBS Chenopodium leptophyllum 0.00 10.00 0.00 0.00 0.00 Collomia linearis ~ 0.50 80.00 1.32 0.50 1.30 Epilobium brachycarpum 2.10 70.00 5.56 2.30 5.99 Erigeron divergens 0.00 50.00 0.00 0.00 0.00 Grindelia squarrosa ~ 0.10 80.00 ~ 0.26 0.10 0.28 Machaeranthera bigelovii - ~ 0.00 10.00 0.00 0.00 0.00 Pol gonum dou lasii 1.00 40.00 2.65 1.00 2:60 TOTAL NATIVE ANN. &BIEN. FORBS 3.7 100.0 9.8 3.9 10.2 INTRODUCED ANNUAL & BIENNIAL FORBS Chenopodium glaucum 0.00 10.00 0.00 0.00 0.00 Cynoglossum officinale 0.00 10.00 0.00 0.00 0.00 Lactuca serriola 0.30 80.00 0.79 0.30 0.78 Lappula redowskii 0.00 10.00 0.00 0.00 0.00 Pocilla biloba 1.00 100.00 2.65 1.00 2.60 Polygonum arenastrum 0.10 20.00 0.26. 0.10 0.26 Tra opo on dubius ssp. ma'or 0.00 50.00 0.00 0.00 0.00 TOTAL INTRO. ANN. &BIEN. FORBS 1.4 100.0 3.7 1.4 3.6 INTRODUCED ANNUAL GRASSES Bromus 'aponicus - 0.00 - 30.00 0.00 0.00 0.00 TOTAL INTRO. ANN. GRASSES 0.0 30.0 0.0 0.0 0.0 NATIVE PERENNIAL FORBS Achilles lanulosa 0.20 50.00 0.53 0.20 0.52 Agoseris glauca ~ 0.00 10.00 0.00 0.00 0.00 Allium macropetalum 0.60 100.00 1.59 0.60 1.56 " Aster asxndens 0.00 50.00 0.00 0.00 0.00 Astragalus miser var, oblongifolius 1.40 80.00 3.70 i.40 3.65 Balsamcrhiza sagittata 4.30 100.OD 11.38 4.50 11.72 Calochortus gunnisonii - 0.00 10.00 0.00 0.00 0.00 Cymopterus planosus 0.20 40.00 0.53 0.20 0.52 Erigeron engelmannii 0.00 10.00 0.00 0.00 0.00 Helianthella uniflora 0.80 50.00 2.12 0.60 2.08 Penstercion stridus 0.00 10.00 ~ 0.00 ~ ~ 0.00 0.00 Perideridia gairdneri ss .borealis 0.00 20.00 0.00 0.00 0.00 TOTAL tJATIVE PERENNIAL FORBS 7.5 100.0 19.8 7.7 20.1 INTRODUCED PERENNIAL FORBS Breea arvensis 0.00 40.00 0.00 0.00 0.00 Medicago saliva 0.10 30.00 0.26 0.10 0.26 Taraxacum offlcinale 0.00 ~ 30.00 0.00 0.00 0.00 TOTAL INTRO. PERENNIAL FORBS 0.1 70.0 0.3 0.1 0.3 NATIVE PERENNIAL GRASSES (cool) Achnatherum lettermanii 3.10 60.00 8.20 3.10 8.07 Achnatherum nelsonii 0.20 20.00 0.53 0.20 0.52 Bromelica bulbosa 0.20 50.00 0.53 0.20 0.52 Ceratochloa carinata ~ 0.00 10.00 0.00 0.00 0.00 Critesion jubatum 0.00 10.00 0.00 0.00 0.00 Elymus lanceolatus fm. albicans 0.20 50.00 0.53 0.20 0.52 Elymus longifolius ~ 0.10 70.00 0.26 0.10 0.26 Elymus trachycaulus 0.00 50.00 0.00 0.00 0.00 Koeleria macrantha 0.10 70.00 0.26 0.10 0.26 Pascopyrum smilhii 3.40 80.00 8.99 3.40 8.85 Poa agassizensis 1.10 100.00 - 2.91 1.10 2.86 Pseudoroe neria s icata ss . spicata 0.10 50.00 0.26 0.10 0.26 TOTAL NATIVE PERENNIAL GRASSES c 8.5 100.0 22.5 8.5 22.1 "P= Present within 1 m. of either side of the cover transect, but not quantitatively encountered.