Herbs perennial, monoecious or dioecious, 20-60 cm tall. Stems ascending or erect, usually simple, glabrous or sparsely puberulent. Leaves alternate; nanophylls absent; stipules narrowly linear or narrowly triangular, 3-5 × 1.5-2 mm, glabrous, with cystoliths; petiole 0-2 mm; leaf blade obliquely oblanceolate-oblong or oblong, 4.5-16(-19) × 2-4.5(-6) cm, herbaceous, major basal lateral veins absent and venation pinnate, abaxial surface glabrous or sparsely puberulent along nerves, adaxial surface sparsely strigillose, cystoliths conspicuous, dense; base with broader half rounded, margin dentate, apex cuspidate. Male inflorescences solitary or in pairs, simple, 3-9 mm in diam.; peduncle (4-)7-20(-32) mm; receptacle obscure; bracts connate, ca. 2 mm, glabrous; bracteoles linear. Female inflorescences solitary or in pairs, 30-flowered or more, 1.5-4(-14) mm in diam.; peduncle 0-1 mm; receptacle 0.5-2(-5) mm in diam.; bracts ovate or triangular; bracteoles linear. Male flowers 5-merous. Achenes ovoid, ribbed. Fl. May-Oct.
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A herb. It keeps growing from year to year. It grows 20-60 cm tall. The leaves are simple. It does not have stinging hairs. The leaves are obliquely oblong. They are 5-16 cm long by 3-5 cm wide. Male flowers are single and female flowers in groups of 30.
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