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�� <br />E <br />with American vetch (Vica americana), asters (Aster spp.), blue wild -rye (Elymus <br />laucus), cinquefoils (Potentilla spp.), wild -daisies (Erigeron spp.), and yar- <br />rows (Achillea spp.). The specific name, leucanthus, is a Greek word meaning <br />white -flowered. <br />Opinions differ as to the palatability of aspen peavine. Some observers state <br />that it is nearly if not quite as palatable as American vetch, which is one of <br />the best range weeds; others maintain that is is almost worthless as a forage <br />plant. Probably its true value lies somewhere between these extremes. ordinar- <br />ily, sheep and cattle as well as goats graze aspen peavine readily, although in <br />Utah and southern Idaho sheep usually do not graze it much until after the first <br />frost. Horses graze it in the fall after the pods are mature and quickly put on <br />good, hard fat when a plentiful supply of this plant is available. Deer and elk <br />also forage aspen peavine. <br />Lupinus spp. <br />(Lupines) <br />Tailcup lupine, sometimes called silver lupine, is a perennial herb of the pea <br />family (Leguminosae). The specific name is a Latin word meaning tailed (from <br />cauda, tail), and alludes to the short prolongation backward of the upper <br />part of the calyx, or outer floral cup; hence the common name, tailcup lupine. <br />This plant ranges from Washington and Oregon (east of the Cascades) to California <br />(chiefly, if not entirely, east of the Sierra Nevada Mountains), Nevada, Colo- <br />rado, and Idaho. It may possibly also inhabit Arizona, New Mexico and Montana, <br />although it is not now definitely known as occurring in those states. It grows <br />chiefly between elevations of about 3,000 and 8,500 feet, characteristically <br />appearing in rather dry, well -drained soils from the sagebrush type up to open <br />coniferous timber stands. It is one of the common lupines in the ponderosa pine <br />belt, growing chiefly in parks and openings where, especially in California, it <br />is often associated with Idaho fescue (Festuca idahoensis) and bitterbrush (Pur- <br />shia tridentata). Tailcup lupine is fairly common over much of its range and <br />often is locally abundant. <br />2-84 <br />