Herbs perennial, dioecious, ca. 33 cm tall. Stems ascending or erect, branched, glabrous, densely ferruginous-furfuraceous. Leaves alternate; nanophylls absent; stipules lanceolate or narrowly ovate, 10-16 × 4 mm, glabrous, with cystoliths; petiole 1-4 mm; leaf blade obliquely oblong, 3.5-8 × 1.5-2.5 cm, herbaceous or papery, major basal lateral veins asymmetric, 1 basal, the other arising above base, abaxial surface sparsely strigillose along veins, adaxial surface sparsely strigillose, cystoliths conspicuous or obscure, dense; base with broader half nearly rounded, margin dentate or denticulate, apex acuminate. Male inflorescences solitary, simple, 4-8 mm in diam.; peduncle 1-2 mm; receptacle 2.5-5.5 mm in diam.; bracts obscure; bracteoles oblong or linear. Male flowers 4-merous. Fl. Jun.

* Woodland margins in valleys; 2100-2400 m. SW Sichuan, W Yunnan.