Plants with stolons and tubers as in no. 6 [Lycopus rubellus Moench]; stem shortly and densely hairy; lvs felty on both sides with slightly longer hairs on the veins, lanceolate to narrowly linear, with ascending to spreading teeth, the lower 6-12 נ1.5-3 cm, the upper somewhat smaller and distinctly narrower, 4-7 נ0.3-1 cm; base of blade concavely narrowed to a sessile base; bracts 1-2 mm; cal 2.3-3 mm, the 5 attenuate (not subulate) teeth well surpassing the nutlets; cor 4- lobed, the upper lobe deeply notched; nutlets 1-1.2 mm, with low rounded teeth on the crest and upper surface. Coastal plain from se. Va. to Fla. and Miss., and inland irregularly to Tenn. and s. Mo.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.