Shrub to 5 m tall. Branchlets angular, 2-2.5 mm in diam., apices glabrous; pith solid. Leaf blade abaxially, calyx, corolla lobes, pistil, and fruit densely black punctate-lineate. Petiole canaliculate, 1-2 cm; leaf blade elliptic to obovate, 8-14.5 × 3.3-6 cm, membranous, dull adaxially, glabrous, base cuneate, rounded, obtuse or sometimes subtruncate, margin subrevolute, sparsely serrate-dentate with callose teeth, apex caudate-acuminate, acumen 1-2 cm; lateral veins 7-10 on each side of midrib, ending in teeth. Inflorescences axillary or sometimes terminal, paniculate, 5-12 cm; bracteoles ovate, entire, black punctate-lineate. Flowers white, ca. 2 mm. Pedicel 1.3-1.5 mm. Calyx lobes ovate, persistent, glabrous, margin entire, ciliate; apex acute. Corolla short campanulate, lobes equaling or longer than tube, broadly ovate to subreniform, margin minutely denticulate or crenulate, apex rounded. Stamens inserted at middle of corolla tube, included; anthers broadly ovate or reniform, ca. as long as filaments. Pistil included. Style short, persistent, stigma subcapitate, slightly lobed. Fruit yellowish, globose, 2-3 mm in diam. Fl. Jan-May, fr. Aug-Nov.

* Dense broad-leaved forests, damp seepage areas on hillsides; 1300-1800 m. Yunnan