Shrubs scandent, 3-6(-10) m tall; axial parts rust-colored pubescent with 2-armed hairs, later glabrescent. Branchlets terete. Petiole 6-10 mm, rust-colored pubescent; leaf blade oblong, lanceolate-oblong, or elliptic, 7-18 X 2.5-5.5 cm, abaxially sparsely pubescent with 2-armed hairs, or subglabrous, adaxially glabrous and glossy, base cuneate or subrounded, apex cuspidate, rarely acuminate; lateral veins 6 or 7 pairs. Inflorescences mostly terminal, elongated, narrowly paniculate, 7-20 cm, densely rust-colored pubescent. Pedicel ca. 4 mm. Sepals broadly elliptic to nearly circular, subequal, 3-3.5 mm, densely rust-colored pubescent abaxially. Corolla white, red, or purple; lobules semicircular, ca. 9 mm, margin erose-dentate. Filaments flat, ca. 1 mm; anthers conical. Fruit black, ellipsoid-oblong, 2-2.3 X ca. 1 cm, ± apiculate. Fl. Oct-Nov.

Dense forests, thickets, steep rock faces in ravines; 300-1300 m. S Guangxi, S and SE Yunnan [Cambodia, NE India, Laos, Myanmar, Thailand, Vietnam].