Herbs 8-28 cm tall. Sterile branches arising from leaf axils. Stems glabrous. Cauline leaves opposite; leaf blade subflabellate, 0.9-2 cm × 5-12 mm, both surfaces sparsely brown papillose, base gradually narrowed into a petiole, margin obtusely 8-12-dentate (teeth retuse at apex), apex obtuse. Cyme 2.2-3.3 cm; branches glabrous; bracteal leaves with petiole 0.7-3 mm, leaf blade broadly subobovate to subflabellate, 2.8-9 × 3-9 mm, both surfaces glabrous, base cuneate, margin obtusely 3-7-dentate (teeth retuse at apex), apex subtruncate or obtuse. Flowers unisexual (plants dioecious). Male flowers: stamens 8, ca. 0.6 mm; pistil obsolete; disc 8-lobed, not surrounded by brown papillae. Female flowers: yellow-green, 5-6 mm in diam.; sepals spreading, broadly ovate to broadly suborbicular, 1.7-2 × 2-2.5 mm, apex obtuse; stamens absent; ovary subinferior; styles 0.2-0.6 mm; disc 8-lobed, surrounded by sparse, brown papillae. Capsule ca. 4 mm, apex subtruncate, retuse; rostrums ca. 0.6 mm. Seeds dark brown, ovoid, ca. 0.9 mm, sulcate, ridges with transverse lines. Fl. and fr. May-Jul.
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A herb. It grows 8-28 cm tall. There are sterile branches from the axils of the leaves. The leaves on the stem are opposite and almost fan shaped. They are 1-2 cm long by 5-12 mm wide. They narrow towards the base.
It is a temperate plant. In central China it grows in shaded and wet places in forest undergrowth between 1,000-2,000 m above sea level.
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