Herbs perennial, dioecious, 15-20 cm tall. Stems ascending, simple, winged or sharply, longitudinally angled, glabrous. Leaves alternate; nanophylls absent; stipules narrowly linear, ca. 3.5 mm, glabrous; petiole 0-1 mm; leaf blade obliquely elliptic or oblong, 4-8 × 1.5-2.5 cm, herbaceous or papery, major basal lateral veins absent and venation pinnate, abaxial surface glabrous, adaxial surface sparsely strigillose, cystoliths conspicuous, dense; base with broader half nearly cordate, margin dentate, apex acuminate. Male inflorescences usually in pairs, branched, 5-20 mm in diam.; peduncle 20-50 mm; receptacle absent; bracts alternate, lanceolate-linear, 4-5 mm. Female inflorescences solitary, ca. 4 mm in diam., sessile; receptacle ca. 1.5 mm in diam.; bracts triangular; bracteoles oblong. Male flowers 5-merous. Fl. Jan-Mar.
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