Herbs perennial, sparsely hirsute. Stems diffuse, 20--60 cm tall, slender. Leaves with petiole compressed, 4--6 mm; leaf blade broadly rhombic to triangular-ovate, 5--7 × 5--8 mm, abaxially glabrous, adaxially pubescent, midvein hirsute, base broadly cuneiform or nearly rounded, margin ciliate, apex acuminate. Flower solitary, axillary. Pedicel 6--8 mm, hirsute. Sepals 5, lanceolate, 6--8 × 2--3 mm, with scales, outside sparsely hirsute. Petals 5, obovate-spatulate, 1.2--1.4 cm × 4--6 mm, apex 2-lobed. Stamens 10. Ovary ovoid, 2--3 mm, apex truncate; styles 3. Capsule globose. Seeds oblong. 2n = 20*.
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