Roots tuberous-thickened; stems usually simple, 3-6 dm, hirsute below; lvs mostly clustered below, the larger with only 3 well developed lfls, often with a much smaller pair below them and a few minute lfls interspersed; petiole long-hirsute; lfls oblong-obovate, usually rounded above, regularly serrate, velvety-pubescent beneath; mature hypanthium turbinate, 2-2.5 נ2.5-3 mm, minutely strigose in the furrows. Woodlands; N.J. and Pa. to Fla. and e. Tex. (A. platycarpa Wallr., a form with larger lvs better distributed along the stem)

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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