Stems ca. 35 cm, basally glabrescent, apically brown woolly. Leaves opposite; petiole 0.5-3 cm, brown woolly; leaf blade oblanceolate to obovate or elliptic, 10-19 X 3.5-5.8 cm, adaxially glabrescent, abaxially densely brown woolly, base attenuate, margin denticulate, apex acute to acuminate. Cymes 10-30-flowered; peduncle 3.5-6.5 cm, brown pubescent; bracts 6-7 mm. Pedicel 0.5-1.6 cm. Calyx segments narrowly lanceolate, 4.5-5.2 mm, outside densely appressed villous, inside glabrous. Corolla white, 3-3.5 mm; tube 1.3-1.8 mm; adaxial lip 1.5-2 mm; abaxial lip 2-3 mm. Stamens adnate to corolla tube near middle, 0.8-1 mm above base, ca. 1.2-1.5 mm; staminode 0.3-0.5 mm. Pistil 4-5.2 mm, puberulent; ovary 1-1.2 mm. Immature berry puberulent. Fl. Jul.

* S Guangxi (Ningming Xian, Shanglin Xian).