Plants erect, glabrous or subglabrous, branched above, 2-5 dm; basal lvs reniform or broadly flabellate, truncate to subcordate at base, crenate or some variously lobed or parted; cauline lvs sessile or subsessile, 3-5-parted, the lobes linear, varying to cuneate- obovate, the broader ones lobed or incised; pet 1.5 mm, shorter than the reflexed sep; achenes in a globose head, turgid, 1.4-2 mm, the beak firm, strongly curved or hooked, 0.7-1 mm. Moist or dry woods; chiefly in the mts.; Mass. to O., N.C., and Tenn. Apr., May.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.