Stems simple or sparingly branched, 3–8 dm, rough-hairy with retrorse hairs and some longer spreading ones; lvs sessile, lanceolate, 2–5 cm, rounded at base, entire or some, especially the upper, bearing near the base 1 or 2 small, divergent, lanceolate lateral lobes; fls sessile in the upper axils, forming a leafy spike; cal 15–20 mm, the tube densely retrorse-hairy, the lobes lanceolate, longer than the tube, usually very unequal in width; cor 2–2.5 cm, purple; fr round-ovoid, 1–1.5 cm; 2n=26. Prairies or open upland woods; O. to Wis. and Minn., s. to Mo., Kans., and Okla., also locally in s. U.S. and apparently intr. from N.J. to Pa. and Va. Aug., Sept. (Otophylla a.; Tomanthera a.)
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