Aquatic and Wetland Vascular Plants of the Northern Great Plains
49. Asteraceae, the Aster Family
2. Aster L. -- Aster9. Aster puniceus L. -- Swamp aster
Very similar to A. lucidulus, differing mainly as follows: Plants arising from a short stout rhizome or caudex, sometimes producing short stolons as well; stem uniformly hairy at least under the heads, conspicuously spreading-hispid to occasionally glabrous below the inflorescence. Leaves averaging larger, 7-20 cm long, 1-3.5 cm wide, scabrous above, glabrous or hispid on the midvein beneath. Inflorescence leafy but rather open, the leaves not especially crowded; heads several to many, 1.5-2.5 cm across; involucre 7-10 mm high. Aug--Sep. Stream banks, pond margins, springs and swampy or boggy places; occasional nc and e ND to ne SD, otherwise rare and scattered; (Newf. to ND, s to GA, AL, IL and NE).
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