具钙楼梯草 ju gai lou ti cao

Herbs perennial, dioecious, ca. 27 cm tall. Stems ascending or erect, simple, strigose. Leaves alternate; nanophylls absent; stipules subulate, ca. 4 × 0.5 mm, hirtellous, without cystoliths; petiole 0-1.5 mm; leaf blade obovate-oblong or broadly oblanceolate, 6-8.5 × 1.5-3 cm, papery, major basal lateral veins absent and venation pinnate, abaxial surface pilose along nerves, adaxial surface strigose, cystoliths obscure, sparse; base cuneate, margin dentate or denticulate, apex acuminate. Female inflorescences solitary, 30-flowered or more, 4-5 mm in diam.; peduncle 0-1.5 mm; receptacle elliptic, 3-4 mm in diam.; bracts narrowly triangular; bracteoles spatulate. Achenes narrowly ovoid, 7-ribbed. Fl. Jun.

* Woodland margins on mountain slopes; ca. 200 m. NW Hunan.