Aster racemosus Elliot
Family: Asteraceae
Aster racemosus image
Colonial by long rhizomes; stems 4-15 dm, glabrous or Ā±puberulent in lines; lvs all cauline, glabrous, or slightly scabrous above, linear to narrowly lanceolate, acute, tapering to the sessile base, entire or slightly toothed, to 11 × 1 cm, those of the branches becoming much reduced; heads mostly numerous in an open, ample infl with long, divaricate, divergently bracteate, often recurved branches that tend to be secund, the shortly bracteate peduncles short or to 1.5 cm; invol 2.5-3.5(-4) mm, glabrous, its bracts imbricate, with mostly elongate green tip; rays 15-30, white or seldom purplish, 3-6 mm; lobes of the disk-cors comprising ca 40% of the limb. Mostly in moist, open places, and in floodplain-forests; Me. to Fla. and La., chiefly near the coast, and upstream along river-bottoms in the Mississippi R. drainage to w. Tenn., s. O., and w. Mo. (A. brachypholis; A. fragilis, misapplied, the type at B! probably a garden hybrid of A. lanceolatus and some other sp. such as A. dumosus; A. vimineus Lam., misapplied, the type at P! better referred to A. lateriflorus or a hybrid derivative thereof)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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