Herbs perennial. Roots fibrous, thickened above. Stems erect or ascending, 7--10 cm, glabrous or sparsely puberulent, simple or few branched. Basal leaf 1; petiole 1--3 cm, glabrous; blade 3-lobed to middle, reniform-pentagonal, 6--8.5 × 8--14 mm, herbaceous, glabrous or adaxially and margin sparsely puberulent, base cordate, central lobe broadly obovate, apex truncate or rounded; lateral lobes obliquely flabellate, inconspicuously 2-lobed. Upper stem leaves smaller, short petiolate. Flowers solitary, terminal, 0.6--1.1 cm in diam. Pedicel 1.5--4 cm, glabrous or sparsely puberulent. Receptacle glabrous. Sepals 5, ovate or elliptic, 2.5--3 mm, abaxially glabrous or puberulent. Petals 5, obovate or narrowly elliptic, 3--5.5 × 1--4 mm, nectary pit without a scale, apex rounded or obtuse. Stamens numerous; anthers ellipsoid. Aggregate fruit ovoid, ca. 4 × 3 mm; carpels numerous. Achene obliquely obovoid, ca. 1.8 × 1.2 mm, densely puberulent; style persistent, ca. 0.4 mm.
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