Synonym:  Aster novi-belgii  L.
    
Synonym:  Aster longifolius  Lam.;  Aster johannensis  Fernald

              

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Perennials.  Colony-forming from long rhizomes.  Stems are straight to often bent at the nodes above, glabrous to pubescent in lines (or densely pubescent in var. villicaule).  Typical height is 2 to 4+ ft. (6 to 12+ dm).

The overall inflorescence and branch inflorescences are  panicle-like, with widely spreading to ascending branches (Branches are not arching or recurved.)  Flower heads are moderately large, not usually congested or one-sided on branches.

Heads are radiate.  Ray florets are typically pale blue-violet (sometimes nearly white), pistillate and fertile.  Disc florets are yellow, turning reddish with age, bisexual and fertile.  Involucral bracts are glabrous, often with spreading to strongly recurved tips, the outermost sometimes longer and completely green.

Basal and lower stem leaves are usually deciduous by flowering. Mid- to upper stem leaves are lance-ovate, lanceolate or lance-linear (var. elodes); leaf bases are clasping to subclasping; faces are usually glabrous (pubescent along abaxial midveins in var. villicaule).

Plants of salt marshes, cranberry bogs and pine barrens (coastal areas); sandy or rocky river banks, damp thickets and roadsides (inland areas).  Flowers late August to late September.  Native.1

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Similar species:  Symphyotrichum puniceum, S. prenanthoides, S. firmum.

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