Herbs erect. Stem solitary, ca. 25 cm, base ca. 2.5 mm in diam., base glabrous, apex densely retrorse yellowish puberulent. Petiole 0.5-1.5 cm; leaf blade oblong-elliptic, 6-8 × 2-3 cm, densely pubescent especially along veins, base cuneate, margin shallowly serrate, apex acute. Verticillasters 2- to many flowered; bracteoles subulate, less than 1 mm, adaxially glabrous, abaxially puberulent. Pedicel ca. 1.3 mm. Calyx obconical, ca. 4 mm, sparsely appressed yellowish puberulent, pubescent on teeth inside, otherwise glabrous, conspicuously 5-veined; teeth broadly triangular, ca. 1.3 mm, apex acute. Corolla ca. 9 mm; tube ca. 4 mm, glabrous, obscurely pilose annulate inside; limb pubescent outside, glabrous inside; upper lip straight, oblong, margin entire. Ovary apex pubescent. Fl. Jul.

* Hilly bamboo forests. Guangdong.