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• Table 2. • <br />Herb Layer Components by Species <br />Mean Cover Comparison for the dry Meadow Community. <br />Species Growth-form Affected Area Reference Area <br />Agropyron smithii PNG 29.0 20.0 <br />Bromus inermis PNG 9.0 23.7 <br />Poa pratensis PIG 0.4 0.4 <br />Allium 9eyeri PF L0.1 <br />Aster sp. PF 1.7 <br />Capsella bursa-pastoris AF G0.1 <br />Collomia linearis AF L0.1 <br />Convolvulus arvensis PF -.. 3.8 3.6 <br />Cymopterus sp. PF ~ 0.1 <br />Cynoglossum officinale AF 0.1 0.3 <br />Erigeron speciosa PF L0.1 <br />Grindelia squarrosa PF 0.3 <br />Galium boreale PF G 0.1 <br />Gayophytum ramosissimum AF L0.1 <br />Lactuca scariola AF X0.1 <br />Lappula redowskii AF <0.1 <br />Lepidium densiflorum AF <0.1 0.1 <br />Malva neglects AF <0.1 0.4 <br />Melilotus officinale AF <0.1 <br />Microsteris gracilis AF G 0.1 0.1 <br />Polygonum sawatchense AF 1.0 0.2 <br />Taraxacum officinale PF <0.1 0.2 <br />Tragopogon dubius PF C0.1 <br />Vicia americans PF ~ 0.1 <br />Wyethia arizonica PF <0.1 <br />Rosa woodsii MS ~ 0.5 <br />Bromus tectorum <br />Ira axillaris <br />Medicago lupulina <br />AG <br />AF <br />AF <br />L0.1 <br />2.1 <br />0.1 <br />0.1 treated as 0.01 <br />w= 20.0+9.0+0.4+3.6+0.1 +0.01 +0.01 +0.01 +0.2+ <br />0.01 <br />= 33.34 <br />a = 45.7 b = 51.0 <br />ISmo = 2 x 33.34 ' x 100 <br />46.7 + 51.0 <br />= 69% <br />*0.1 treated as 0.01 <br />