Common name:
Roughleaf aster
Family:
Scientific name:
Eurybia radulina
Synonym:
Aster radulinus
Main flower color:
Range:
The Pacific states
Height:
Between 4 and 27 inches
Habitat:
Dry woodland, bushy hillsides, rocky outcrops; up to 5,200 feet
Leaves:
Elliptic to ovate, up to 4 inches long, with coarse teeth along the edges
Season:
June to September
Eurybia radulina grows in generally dry environments; forests, hillsides and plains, from near sea level to over 5,000 feet. Stems grow upright, are green to light brown in color, and have a covering of soft, waxy hairs. The alternate leaves have a rough (scabrous) surface, and relatively large, somewhat irregular teeth along the edges.
Flowerheads are composed of nine to 15 white (occasionally pale purple), non-overlapping ray florets, about half an inch long, and a center of 30 to 70 yellow disc florets, which become brown or purplish as they mature. The bell-shaped involucre is lined by several rows of phyllaries; these are whitish around the base and dark green above, oblong in shape and pointed at the tip. The upper edge often has a purplish tint. The inflorescence is flat-topped cluster, containing five to over 30 heads.
Flowerheads are composed of nine to 15 white (occasionally pale purple), non-overlapping ray florets, about half an inch long, and a center of 30 to 70 yellow disc florets, which become brown or purplish as they mature. The bell-shaped involucre is lined by several rows of phyllaries; these are whitish around the base and dark green above, oblong in shape and pointed at the tip. The upper edge often has a purplish tint. The inflorescence is flat-topped cluster, containing five to over 30 heads.
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