Infl 1-3 dm; pet 5-10 mm, pink, stamens 10-25; anthers oblong, 1 mm; stigma capitate; fr 5-6 mm; seed minutely roughened; 2n=48. Thin soil overlying rocks, especially serpentine; Del., Pa., and W.Va., s. to Ga. and Ala. All summer. Fls open in early afternoon only.

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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