Verbesina alternifolia (L.) Britton ex Kearney
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Perennial 1–3 m, the stem leafy, spreading-hirsute to subglabrous, usually ± winged; lvs alternate, lanceolate or lance-elliptic to occasionally ovate, usually gradually narrowed to a petiolar base, sharply serrate or subentire, 10–25 × 2–8 cm, scabrous-hirsute, especially above; heads 10–100+ in an open infl; disk 1–1.5 cm wide in fl; invol bracts few, glabrous or subglabrous, rather small, narrow, soon deflexed, the disk-fls loosely spreading even before anthesis; rays 2–10, neutral, yellow, 1–3 cm; achenes broadly winged or sometimes wingless, spreading in all directions, forming a globose head 8–15 mm thick; 2n=68. Thickets, woods, and bottomlands; N.Y. and s. Ont. to e. Neb., s. to Fla., La., and Okla., rarely adventive elsewhere. Aug.–Oct. (Actinomeris a.; Ridan a.)