Description from Flora of China
Herbs perennial, dioecious, ca. 40 cm tall. Stems ascending, simple, glabrous. Leaves alternate; nanophylls absent; stipules narrowly lanceolate, 6-7 × 2-2.5 mm, strigillose on abaxial surface along costa, with cystoliths; petiole 0-1 mm; leaf blade obliquely elliptic, 4-6 × 2-2.5 cm, herbaceous, major basal lateral veins asymmetric, 1 basal, the other arising above base, abaxial surface hispidulous, adaxial surface strigillose, cystoliths conspicuous, dense; base with broader half obtuse, margin denticulate, apex short acuminate. Male inflorescences solitary, simple, 16-19 × 1-120 mm; peduncle 90-120 mm; receptacle elliptic, 14-18 × 9-10 mm; bracts connate, ca. 2 mm; bracteoles oblong or linear. Male flowers 4-merous. Fl. May.
* Dense forests in valleys; ca. 1800 m. S Yunnan.