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Plants stoloniferous, generally without tubers; stems ±densely appressed-hairy; lvs ±long hairy and on the lower surface usually also short-felty, lanceolate or lance-ovate to elliptic or narrowly rhomboid, 5-12 נ1.5-5 cm, acuminate, coarsely serrate, the lowest tooth not far below the middle of the blade, the margin below it concave and continued along the midvein nearly or quite to the stem; bracts minute; cal 1-1.2 mm, the 4 lobes ovate or triangular-ovate, half to three- fourths as long as the tube; cor generally 4-lobed, but the upper lobe often notched; stamens included or barely reaching the orifice of the cor; nutlets surpassing the cal, the set of 4 almost flat across the tuberculate summit, each 1.5-2 נ0.7-1.3 mm, the inner angle nearly as long as the outer and ending in a tubercle. Mass. to n. Fla., w. to N.Y., Pa., s. Ind., Mo., e. Okla., and e. Tex. (L. membranaceus) Hybridizes extensively with no. 2 [Lycopus uniflorus Michx.] where their ranges overlap, producing a hybrid swarm called L. سherardii Steele.

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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