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Stems ascending, 4–10 dm; herbage (including the cal) harshly stellate-hairy; principal lvs chiefly triangular with broadly truncate to cordate base, crenate (seldom some of them cleft), the lower notably long-petiolate; reduced upper lvs often much narrower and/or few-cleft; fls short-pedicellate, several and crowded at the ends of more elongate axillary and terminal peduncles; bractlets 3–8 mm, spatulate or obovate; cal-lobes deltoid-ovate, 2–5+ mm, the tips connivent in bud into a short beak; pet 16–32 mm, red with a white basal spot, entire or slightly erose; mature carpels hairy, thin-walled, not rugose; 2n=30. Sandy prairies; s. Wis. and ne. Io. to Ill., w. Ind., and se. Mo.; irregularly from Miss. to Ga. and N.C. July–Sept.
