Herbs annual. Stems erect, prostrate at base, densely yellow floccose-villous. Petiole 1-6 cm; leaf blade broadly ovate-cordate to ovate, 4-8 × 3-6 cm, densely villous on veins, adaxially shiny, sparsely villous, abaxially gray-green, glabrous, margin dentate or double dentate. Racemes terminal, 9-10 cm, villous; verticillasters 8-14-flowered; peduncle 4-9 mm; bracts sessile, ovate, lower to 1 cm; bracteoles 1-1.5 mm. Pedicel to 9 mm. Calyx campanulate, ca. 3.5 mm, puberulent; tube ca. 2 mm, 10-veined; teeth subequal, triangular, teeth of upper lip acuminate, middle tooth larger. Corolla funnelform, recurved, ca. 3 cm, finely puberulent, glabrous inside; tube ca. 2.2 cm; upper lip ca. 3 mm; lower lip ca. 8 mm, lobes elliptic-oblong. Anterior stamens longer than posterior, to as long as lower lip; filaments puberulent at base.

* Guizhou, Sichuan.