Herbs perennial, dioecious, 11-25 cm tall, glabrous. Stems ascending or erect, simple. Leaves alternate; nanophylls absent; stipules lanceolate, 4-9 × 1.5-2 mm, with cystoliths; petiole absent; leaf blade obliquely oblong or oblong-lanceolate, (2-) 6-11 × 1.4-3 cm, herbaceous or papery, major basal lateral veins both arising at base of leaf blade, cystoliths obscure; base with broader half auriculate, margin dentate, apex acuminate. Male inflorescences solitary, simple, 3-9 mm in diam.; peduncle 1-3 cm, 0.1-0.4 mm in diam.; receptacle 1-1.5 mm in diam.; bracts connate, ca. 2.5 mm; bracteoles broadly linear. Female inflorescences solitary, 30-flowered or more, ca. 5.5 mm in diam.; peduncle ca. 1 mm; receptacle ca. 2 mm in diam.; bracts triangular; bracteoles spatulate or spatulate-linear. Male flowers 4-merous. Achenes ellipsoid, 10-ribbed. Fl. Jun-Oct.
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