Woody Aster (Xylorrhiza glabriuscula).
This is an obligate selenium accumulator that prefers the rocky and clay soils of higher altitudes. It is a perennial arising from a thick woody crown with woody roots. Numerous unbranched hairy stems reaching a height of 1 ft (30 cm) have entire leaves 3/ 4 to 2 inches (2 to 5 cm) long and about 1/8 to 1/4 inch (2 to 6 mm) wide tipped with a callus point. The daisy-like flowers have stiff white ray flowers and yellow disk flowers.
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