Herbs perennial. Roots fibrous, subequally thick. Stems 6--9 cm, glabrous, simple. Basal leaves ca. 7; petiole 2.6--4.6 cm, glabrous; blade 3-sect, pentagonal or deltoid, 2.5--7 × 4--10 mm, papery, glabrous, base truncate-cordate, central segment obovate or obovate-oblong; lateral segments flabellate or obliquely broadly obovate, unequally 2-cleft to middle. Stem leaves 1 or 2, lowermost similar to basal leaves; upper 1 short petiolate, undivided or 3-sect, segments linear or linear-lanceolate. Flowers solitary, terminal, 1--1.3 cm in diam. Pedicel 2.8--3.8 cm, glabrous; receptacle glabrous. Sepals 5, narrowly oblong, ca. 4.5 mm, glabrous. Petals 5 or 6, obovate, 4.5--6.5 × 2.5--3.5 mm, nectary pit without a scale, apex rounded, nectariferous foveola small. Stamens numerous; anthers oblong. Carpels numerous, ca. 0.8 mm, glabrous. Fl. Aug.
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