Plants perennial. Stems few, slender, ascending, to 33 cm, densely puberulent, apex villous. Leaves 2 or 3 pairs; petiole of basal leaves 7-9 cm, 1-4.5 cm in stem leaves; leaf blade hastate, 2-5 × 1.7-3 cm, papery, adaxially pubescent except for veins, abaxially sparsely purple-black glandular, pubescent on veins, base hastate, margin crenulate, apex ± acute. Verticillasters 2(-4)-flowered, in terminal racemes or panicles (1-)2-9 cm; lower bracts leaflike; upper bracts ovate, shorter than calyx, purple-black glandular. Pedicel 3-5 mm. Calyx campanulate, 1-1.2 cm, densely villous, glandular pilose, 2-lipped to ca. 1/2 its length; upper lip triangular-ovate, ca. 6 mm; lower lip ca. 5 mm, teeth ovate-triangular; fruiting calyx dilated, broadly campanulate, membranous. Corolla yellow-brown with purple-black spots on lower lip, 1.5-1.7 cm; tube imperfectly hairy annulate inside; upper lip slightly reflexed, slightly concave, purple-black glandular; middle lobe of lower lip largest, obcordate, 5-5.5 mm wide. Stamens exserted; filaments ca. 4 mm; connectives ca. 6 mm. Nutlets unknown. Fl. Jul.
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