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Perennial to 1 m, simple below the infl, glabrous or nearly so; lvs thin, lanceolate to elliptic or oblong, acute or acuminate, commonly sharply dentate, often laciniate, rarely double-dentate or merely crenate, tapering to a petiole-like base, frequently auriculate around the stem, the larger or lower often pinnatifid at base with 1–4 pairs of small segments; racemes elongating before anthesis; sep obtuse, 3–5 mm; pet 10–13 mm; pedicels 6–10 mm; frs slender, widely divergent, 2–4 cm, the valves covered with minute transparent papillae. Moist or wet alluvial woods; w. Pa. and W.Va. to Ill., Minn., Tenn., Kans., Ark., and Okla. May, June.
