钝齿楼梯草 dun chi lou ti cao

Subshrubs, dioecious, ca. 30 cm tall. Stems ascending or erect, branched, glabrous. Leaves alternate; nanophylls absent; stipules subulate, 1-2 × 0.1-0.2 mm, glabrous; petiole 0-1 mm; leaf blade obliquely oblong or oblong-oblanceolate, 6-12 × 1.5-3 cm, herbaceous or papery, major basal lateral veins absent and venation pinnate, or ± asymmetric with 1 basal and the other arising above base, abaxial surface sparsely strigillose along nerves, adaxial surface sparsely hirtellous, cystoliths conspicuous, dense; base with broader half obtuse, margin obtusely denticulate, apex cuspidate or acuminate. Male inflorescences solitary, branched, 8-10 mm in diam.; peduncle 2-4.5 mm; receptacle absent; bracts alternate, linear-lanceolate, ca. 0.8 mm. Male flowers 4-merous. Fl. Nov.

* Mountain forests. N Guangxi.