Herbs (3-)10-20(-33) cm tall. Sterile branches well developed, arising from proximal leaf axils, glabrous. Stems glabrous. Leaves usually opposite; petiole 6-10 mm, sometimes brown papillose near axil; leaf blade orbicular to broadly ovate, 6-10.5 × 7.5-11.5 mm, glabrous, base broadly cuneate, margin obtusely 12-16-dentate, apex obtuse. Cyme 2.2-3.8 cm, 4-10-flowered; branches glabrous; bracteal leaves with petiole 1-7 mm, brown papillose near axil, leaf blade narrowly to broadly ovate, 0.4-1.8 cm × 9-10 mm, glabrous, base broadly cuneate to oblique, margin obtusely 5-16-dentate. Flowers yellow-green; pedicel glabrous. Sepals erect, ± broadly ovate, 0.8-2.1 × 1-2.4 mm, apex obtuse. Stamens 8, ca. 0.4 mm. Disc absent. Capsule 7-10 mm; carpels divaricate, distinctly unequal; rostrums 0.3-1.2 mm. Seeds dark brown, shiny, ellipsoid to broadly ovoid, 0.6-0.9 mm, papillose. Fl. and fr. Apr-Aug.
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A herb. It grows 10-20 cm tall. The sterile branches arise from the axils of the leaves in the lower section. The leaves are usually opposite and broadly oval and 6-11 mm long by 8-12 mm wide.
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