Synonym:  Aster radula  L.

              

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Perennials.  Colony-forming from rhizomes.  Stems become  densely, short pubescent toward the summit of the stem.  Typical height is 1 to 3 ft. (3 to 9 dm).

The overall inflorescence is relatively open, few-branched, few-flowered, and rather flat-topped.  Flower heads are mostly located at branch tips.

Flower heads are radiateRay florets are pale blue-violet to whitish, pistillate and fertile.  Disc florets are bright yellow, bisexual and fertile.  Involucral bracts are in several series, the outer much smaller than the inner; the tips often spreading-recurved.  Dark green patches are thumbnail-shaped, basally rounded or truncated.

Basal leaves are usually absent at flowering.  Stem leaves are lanceolate to oblanceolate, prominently-veined, short-pointed, with rough, scabrous surfces. 

Cypselae are spindle-shaped.  The pappus is of minutely-barbed bristles.

Plants of bogs, fens, margins of swamps, roadside ditches.  Flowers early August to early September.  Native..

Similar species:  Eurybia spectabilis.

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