Blades of basal lvs lanceolate or lance-ovate, acute or acutish, subtruncate or shallowly cordate at base, sharply and generally rather finely toothed, to 8 נ5 cm, commonly 1.75-3.5 times as long as wide; otherwise much like no. 14 [Senecio aureus L.]; 2n=46. Moist meadows and swampy woods; N.S. and Que. to n. N.Y.; disjunct on and near Roan Mt., N.C.-Tenn. May-Aug. (S. robbinsii)

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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