Stout, usually simple, to 1 m; lvs several pairs, almost always opposite, broadly oblong to ovate, 8–12 cm, abruptly acuminate to obtuse and apiculate, cuneate to a petiole; umbels 1–4, compact, usually many-fld; cor white or pink-tinged, its lobes 7–9 mm; column very thick, expanded above; hoods divergent, strongly ventricose or subglobose, the body saccate, the lateral margins infolded around the horn, with or without an obscure lateral lobe near the middle; horns strongly flattened, obliquely obovate, abruptly contracted to a short inflexed beak; fr erect on deflexed pedicels. Upland woods and thickets; Conn. and s. N.Y. to n. Fla., w. to O., s. Ill., se. Mo., and Tex. June. (Biventraria v.)
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