尖被楼梯草 jian bei lou ti cao

Herbs perennial, dioecious, 50-60 cm tall. Stems ascending or erect, simple, glabrous. Leaves alternate; nanophylls absent; stipules narrowly linear, 5-12 × 1-1.2 mm, glabrous, with cystoliths; petiole 3-5 mm; leaf blade obliquely oblong or obovate-oblong, 8-16 × 3-6 cm, herbaceous, major basal lateral veins absent and venation pinnate, abaxial surface puberulent along nerves, adaxial surface sparsely strigillose or glabrous, cystoliths usually obscure, slightly dense; base with broader half rounded, margin crenate-dentate, apex caudate. Female inflorescences solitary, ca. 7 × 10 mm; peduncle ca. 1 mm; receptacle nearly orbicular, 6-8 mm in diam.; bracts triangular; bracteoles linear. Achenes ellipsoid, striolate. Fl. Aug.

* Evergreen broad-leaved forests on mountain slopes; ca. 1300 m. NE Yunnan.