峨眉楼梯草 e mei lou ti cao

Herbs perennial, dioecious, 10-25 cm tall. Stems prostrate, branched, glabrous. Leaves alternate; nanophylls absent; stipules lanceolate-linear, ca. 10 × 2 mm, glabrous, without cystoliths; petiole 0-2 mm; leaf blade obliquely elliptic, 4-8 × 1.5-3 cm, herbaceous, major basal lateral veins 1 or ± 2, abaxial surface glabrous, adaxial surface sparsely strigillose, cystoliths conspicuous or obscure, dense; base with broader half auriculate, margin denticulate, apex acuminate. Male inflorescences solitary, simple, 6-14 mm in diam.; peduncle 32-75 mm; receptacle 5-13 mm in diam.; bracts connate, 1.2-2.5 mm; bracteoles lanceolate-linear. Male flowers 5-merous. Fl. Apr.

* Shaded areas along mountain roadsides; ca. 1000 m. Sichuan (Emei Shan).