Glabrous or very sparsely hairy, 2-4 dm, usually much branched; basal lvs broadly round-ovate to reniform, 2-3 cm, wider than long, crenate, rarely 3-lobed, cordate or subcordate at base; cauline lvs divided to the base into 3-5 linear or oblanceolate segments; pet spatulate- elliptic, 6-8 mm, twice as long as the sep; achenes in a globose head, dull brown, obovate to subrotund, turgid, 1.3-1.7 mm, the straight, slender beak 0.3-0.5 mm. Rocky, open woods; s. Ill. and s. Mo. to Ala. and Ark. Apr.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.