Stems slender, freely branched, often ascending or decumbent, finely pubescent with spreading glandular hairs; lf-blades shorter than to twice as long as the petiole, ovate, 1-3 cm, broadly rounded to subcordate at base, coarsely serrate, rarely as many as 10 teeth on a side; racemes few-fld; lower bracts resembling foliage lvs and scarcely smaller, the upper progressively reduced; cal glandular-villous; cor 15-20 mm. Mt. woods; Va., N.C. and Tenn. July, Aug.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.