Description from Flora of China
Herbs rhizomatous. Stems to 30 cm tall, erect, ca. 1.5 mm wide, densely white puberulent, branched basally. Petiole 1.5-2.5 cm; leaf blade cordate, 2.3-4 × 1.8-3.5 cm, herbaceous, sparsely fine strigose, base cordate, margin 4-7-callose-crenate, apex acute. Racemes terminal, 5-14 cm; bracts sessile, ovate to rhombic-ovate, ca. 3 mm, leaflike basally. Pedicel ca. 2.5 mm, densely white glandular puberulent. Calyx ca. 2.5 mm, to 4 mm in fruit, densely white puberulent outside; scutellum ca. 1 mm, to 3.5 mm in fruit. Corolla purple-red, ca. 2 cm, densely white glandular puberulent outside, glabrous inside; tube bent, straight, base with a spur ca. 2.5 mm, throat to ca. 5 mm; middle lobe of lower lip triangular-ovate, to 6.5 mm wide, base constricted, apex emarginate; lateral lobes ovate, ca. 3 mm wide. Nutlets unknown. Fl. Sep.
* Streamsides, evergreen forest margins; ca. 2700 m. Yunnan (Dayao Xian).