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Table 6. Cover Data -Mountain Brush Ext Reference Area, Seneca IIW Mine, SCC, Routt Co., CO - 2002 Page 1 of 4 RELATIVE RELATIVE PLANT SPECIES AVERAGE VEGETATION AVERAGE VEGETATION COVER FREQUENCY COVER COVER-ALL COVER-ALL - - (%) (%) - (%) t%) (%7 NATIVE ANNUAL & BIENNIAL FORBS Boechera spp. 0.00 10.00 0.00 0.00 0.00 Chenopodium leptophyllum 0.00 10.00 0.00 0.00 0.00 Collomia lineans 0.10 40.00 O.t5 0.70 0.13 Descurainia pinnate 0.00 10.00 0.00 0.00 0.00 Microsteris gracilis ssp. humilis 0.20 70.00 0.31 0.20 0.25 Polygonum douglasii 0.00 10.00 0.00 0.00 0.00 TOTAL NATIVE ANN. &BIEN. FORBS 0.3 50.0 0.5 0.3 0.4 INTRODUCED ANNUAL 8 BIENNIAL FORBS Chenopodium foliosum 0.00 10.00 0.00 0.00 0.00 Cynoglossum officinale 0.10 90.00 0.15 0.50 0.63 Polygonum arenastrum 0.00 10.00 0.00 0.00 0.00 Sisymbrium altissimum 0.00 10.00 0.00 0.00 0.00 Thlaspi arvense 0.00 10.00 0.00 0.00 0.00 Tragopogon dubius ssp, major 0.20 50.00 0.31 0.30 0.38 Turritis glabra 0.00 20.00 0.00 0.00 0.00 TOTAL INTRO. ANN. &BIEN. FORBS 0.3 100.0 0.5 0.8 1.0 INTRODUCED ANNUAL GRASSES Anisantha tectorum 0.10 20.00 0.15 0.60 0.75 TOTAL INTRO. ANN. GRASSES 0.1 20.0 0.2 0.6 0.8 NATIVE PERENNIAL FORBS Achilles lanulosa 0.30 100.00 0.46 0.40 0.50 Adenolinum lewisii 0.00 10.00 0.00 0.00 0.00 Agastache urticifolia 0.10 10.00 0.15 0.10 0.13 Allium macropetalum 0.00 50.00 0.00 0.00 0.00 Artemisia ludoviciana 0.00 10.00 0.00 0.00 0.00 Astragalus miser var. oblongifolius 0.20 30.00 0.31 0.30 0.38 Balsamorhiza sagittata 0.00 20.00 0.00 0.00 0.00 Cirsium eatonii 0.00 10.00 0.00 0.00 0.00 Delphinium nuttallianum 0.00 10.00 0.00 0.00 0.00 Delphinium ramosum 0.00 10.00 0.00 0.00 0.00 Erigeron speciosus 0.30 90.00 0.46 0.50 0.63 Eriogonum umbellatum 0.20 40.00 0.31 0.20 0.25 Eucephalus glaucus 0.00 10.00 0.00 0.00 0.00 GaliUm septentrionale 0.10 40.00 0.75 0.30 0.38 Gilia spp. 0.00 10.00 0.00 0.00 0.00 Hackelia floribunda 0.00 10.00 0.00 0.00 0.00 Helianthella uniflora 0.50 30.00 0.77 0.50 0.63 Heliomeris multiflora 0.00 20.00 0.00 0.00 0.00 Ipomopsis aggregate 0.00 10.00 0.00 0.00 0.00 Lathyrus leucanthus 0.10 20.00 0.15 0.20 0.25 Lithospennum ruderale 0.00 20.00 0.00 0.00 0.00 Lupinus caudatus 0.30 70.00 0.46 0.40 0.50 Lupinus prunophilus 0.00 40.00 0.00 0.10 0.13 Mertensia ciliate 0.10 10.00 0.15 0.10 0.13 Oligoneuron rigidum 0.70 10.00 0.15 0.20 0.25 Osmorhiza chilensis 0.00 10.00 0.00 0.00 0.00 Osmorhiza occidentalis 0.00 10.00 0.00 0.00 0.00 Packers multilobata 0.00 20.00 0.00 0.00 0.00 Penstemon stridus 0.00 10.00 0.00 0.00 0.00 Perideridia gairdned ssp. borealis 0.00 40.00 0.00 0.00 0.00 Pseudostellaria jamesiana 0.40 40.00 0.62 0.50 0.63 Psilochenia occidentalis 0.00 20.00 0.00 0.00 0.00 Senecio integerrimus 0.00 10.00 0.00 0.00 0.00 Stenotus artnerioides 0.10 70.00 0.75 0.70 0.13 Urtica gracilis ssp. gracilis 0.00 10.00 0.00 0.00 0.00 Valerians edulis 0.00 10.00 0.00 0.10 0.13 Vicia americans 0.30 100.00 0.46 0.40 0.50 Virgulaster ascendens 0.00 20.00 0.00 0.10 0.13 TOTAL NATIVE PERENNIAL FORBS 3.1 100.0 4.8 4.5 5.6