Description from Flora of China
Herbs robust. Stems ca. 43 cm tall, white pubescent. Petiole 2-6 cm; leaf blade ca. 10 × 1.5 cm, papery, adaxially sparsely white minutely hispid except for finely strigose veins, abaxially pubescent, base broadly truncate-cuneate, apex abruptly long acuminate; lateral veins 5-paired. Inflorescences terminal ± spicate panicles 2.5-11 × ca. 2 cm, glandular hairy; cymes dichotomous, 2-5-flowered; peduncle to 2 mm; lower bracts leaflike, rhombic, ca. 1.5 × 1 cm; upper bracts ovate, to 6 × 3 mm. Calyx ca. 3 mm, sparsely pubescent; teeth triangular-ovate, ca. 1 mm, apex acute, posterior tooth somewhat longer; fruiting calyx to 7 × 3.5 mm. Corolla yellow, sparsely minutely hispid outside, ca. 1.6 cm, erect, throat to 4 mm wide; upper lip ca. 8 mm; lower lip somewhat shorter, middle lobe obovate; lateral lobes circular, wider than middle lobe. Nutlets triquetrous, subglobose, ca. 1.4 × 1.1 mm, glabrous. Fl. Oct, fr. Nov.
* Valleys, hillsides; 700-1000 m. Guangxi, Guizhou, Yunnan