The photo above shows showy aster from Swauk Campground, Wenatchee N.F............July 23, 2009.
Showy aster is a stoloniferous aster, with solitary, stout stems arising from woody rootstock. Leaves are large, ovate, elliptic, or obovate, up to 17 cm in length, and up to 8 cm wide. The leaf margins are serrate. The flower heads are few to numerous (10-40), in a narrow, leafy inflorescence. The rays are violet or pale blue, the disc flowers yellow.
Showy aster is found in brush-filled openings in shady coniferous woods, at medium elevation in the mountains.
Showy aster is found from northeast Oregon, north to British Columbia, east to Saskatchewan and through central Idaho to northern Wyoming.
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These 4 photos show showy aster from both the Bowman Trail and Chief Joseph Trail, Eagle Cap Wilderness..........July 27, 1997.