拟骤尖楼梯草 ni zhou jian lou ti cao

Herbs perennial, dioecious, 25-60 cm tall. Stems ascending or erect, usually simple, puberulent. Leaves alternate; nanophylls absent; stipules lanceolate, 10-15 × 4-6 mm, nearly glabrous, without cystoliths; petiole 0-3 mm; leaf blade obliquely elliptic, 7.5-15 × 4-7.5 cm, papery, major basal lateral veins both arising at base of leaf blade, abaxial surface sparsely strigillose along veins, adaxial surface sparsely strigillose, cystoliths obscure, dense; base with broader half auriculate, margin dentate, apex caudate-acuminate or acuminate. Male inflorescences solitary, simple, 9-14 mm in diam.; peduncle 9-15 mm; receptacle elliptic, ca. 9 × 5 mm; bracts connate, ca. 1 mm; bracteoles linear or spatulate-linear. Female inflorescences solitary, 4-5 mm in diam.; peduncle 0.5-1 mm; receptacle nearly orbicular, ca. 4 mm in diam.; bracts lanceolate-linear; bracteoles cymbiform or oblong. Male flowers 4-merous. Fl. Aug.

* Mountain forests; 1600-1900 m. Chongqing (Nanchuan).