Herbs perennial. Roots fibrous, subequally thick. Stems 1--4, 7--15 cm, glabrous, usually few branched. Basal leaves 3--8; petiole 2--7 cm, glabrous blade cuneate-obovate, obovate, spatulate, or subtrapeziform, (0.7--)1.2--4.6 × (0.5--)0.9--2.5 cm, thickly papery, glabrous, base cuneate, apex 3--7-dentate or crenate. Lower stem leaf short petiolate or subsessile, spatulate, 3-dentate apically, upper stem leaf sessile, 3-partite or 3-sect, segments linear. Monochasium terminal, 2-or 3-flowered; bracts leaflike. Flowers 1.2--2.1 cm in diam. Pedicel 1.5--8.5 cm, appressed puberulent. Receptacle glabrous. Sepals 5, elliptic, 3.5--6 mm, abaxially appressed puberulent. Petals 5(--8), obovate, 5--10 × 4--7 mm, nectary pit without a scale, apex rounded or subtruncate. Stamens numerous; anthers oblong. Aggregate fruit ovoid, 3.5--5 × 3--4 mm; carpels numerous. Achene slightly bilaterally compressed, obliquely obovoid, 1.5--2 × 1--1.2 mm, densely puberulent; style persistent, ca. 0.8 mm. Fl. Jun--Sep. 2n = 16*.
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