Boltonia decurrens (Torr. & A.Gray) Alph.Wood
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Authority
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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Family
Asteraceae
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Scientific Name
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Description
Species Description - Similar to B. asteroides var. recognita, but with broader and more numerous lvs, those of the stem conspicuously decurrent; rhizomes wanting; invol bracts subequal or only slightly imbricate; disk-fls numerous, ca 250–400; pappus-awns of the disk apparently always well developed. Flood plains along major rivers; Mo. and Ill.; now rare. Sept., Oct.