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J Table 8. Cover Data -Sagebrush Extended Reference Area, Seneca IIW Mine, SCC, Routt Co., CO - 2002 Page 1 of 6 RELATIVE RELATIVE PLANT SPECIES _ AVERAGE VEGETATION AVERAGE VEGETATION COVER FREQUENCY COVER - COVER-ALL COVER-ALL NATIVE ANNUAL & BIENNIAL FORKS Chenopodium berlandieri 0.00 10.00 0.00 0.00 0.00 Collinsia parviflora 0.00 10.00 0.00 0.00 0.00 Collomia linearis 0.00 50.00 0.00 0.00 0.00 Descurainia pinnata 0.00 10.00 0.00 0.00 0.00 Dracocephalum parviflorum 0.00 10.00 0.00 0.00 0.00 Epilobium brachycarpum 0.00 10.00 0.00 0.00 0.00 Erigeron divergens 0.00 20.00 0.00 0.00 0.00 Grindelia squarrosa 0.10 20.00 0.19 0.10 0.17 Machaeranthera bigelovii 0.00 10.00 0.00 0.00 0.00 Microsteris gracilis ssp. humilis 0.00 10.00 0.00 0.00 0.00 Polygonum douglasii 0.00 10.00 0.00 0.00 0.00 TOTAL NATIVE ANN. &BIEN. FORKS 0.1 90.0 0.2 0.1 0.2 INTRODUCED ANNUAL & BIENNIAL FORKS Cirsium vulgare 0.00 10.00 0.00 0.00 0.00 Cynoglossum officinale 1.00 60.00 1.92 1.00 1.73 Descurainia Sophia 0.00 10.00 0.00 0.00 0.00 Lactuw serriola 0.00 20.00 0.00 0.00 0.00 Lappula redowskii 0.00 20.00 0.00 0.00 0.00 Lepidium densiflorum 0.10 20.00 0.19 0.10 O.i7 Sjsymbrium altissimum 0.10 10.00 0.19 0.10 0.17 Thlaspi arvense 0.20 10.00 0.38 0.20 0.35 Tragopogon dubius ssp. major 0.10 70.00 0.19 0.10 0.17 TOTAL INTRO. ANN. 8 BIEN. FORKS 1.5. 90.0 2.9 1.5 2.6 INTRODUCED ANNUAL GRASSES Anisantha tectorum 0.30 20.00 0.57 0.30 0.52 Bromus japonicus 0.20 10.00 0.38 0.20 0.35 TOTAL INTRO. ANN. GRASSES 0.5 20.0 1.0 0.5 0.9 NATIVE PERENNIAL FORBS Achilles lanulosa 0.20 70.00 0.38 0.20 0.35 Allium macropetalum 0.00 70.00 0.00 0.00 0.00 Astragalus bisulcatus 0.00 10.00 0.00 0.00 0.00 Astragalus miser var. oblongifolius 1.00 60.00 1.92 1.70 2.95 Balsamorhiza sagittata 0.40 70.00 0.77 0.50 0.87 Castilleja spp. 0.00 10.00 0.00 0.00 0.00 Delphinium nuttallianum 0.00 30.00 0.00 0.00 0.00 Erigeron engelmannii 0.00 20.00 0.00 0.00 0.00 Erigeron speciosus 0.00 30.00 0.00 0.00 0.00 Eriogonum umbellatum 0.10 70.00 0.19 0.20 0.35 Hackelia floribunda 0.20 10.00 0.38 0.20 0.35 Helianthella uniflora 0.50 20.00 0.96 0.60 1.04 Heliomeris multi8ora ~ 0.10 30.00 0.19 0.10 0.17 Lathyrus leucanthus 0.00 10.00 0.00 0.00 0.00 Lithospermum ruderale 0.00 10.00 0.00 0.00 0.00 Lomatium dissectum var. multifdum 0.10 10.00 0.19 0.10 0.17 Lomatium spp. 0.00 20.00 0.00 0.00 0.00 Lupinus caudatus 0.20 50.00 0.38 0.30 0.52 Lupinus prunophilus 0.40 70.00 0.77 0.50 0.87 Microseris nutans 0.20 20.00 0.38 0.20 0.35 Packers multilobata 0.00 10.00 0.00 0.00 0.00 Perideridia gairdneri ssp. borealis 0.00 50.00 0.00 0.00 0.00 Phlox longifclia 0.10 10.00 0.19 0.10 0.17 Pseudostellaria jamesiana 0.00 10.00 0.00 0.00 0.00 Senecio integerrimus 0.00 30.00 0.00 0.00 0.00 Trifolium gymnocarpum 0.10 30.00 0.19 0.10 0.17 Valerians edulis 0.00 10.00 0.00 0.00 0.00 Vicia amedrana 0.70 70.00 1.34 0.80 1.39 Virgulaster ascendens 0.40 50.00 0.77 0.40 0.69 TOTAL NATIVE PERENNIAL FORKS 4.7 100.0 9.0 6.0 10.4