Stems 20--35 cm tall, simple or 1-branched. Basal leaves ca. 5; petiole 8--13 cm, base narrowly sheathed; leaf blade not green when dried, pentagonal, 2.3--3 × 4--6.5 cm, base cordate, 3-sect; central segment broadly rhombic, 3-fid, with narrowly triangular teeth; lateral segments obliquely flabellate, unequally 2-fid nearly to base. Cauline leaves similar to basal ones. Flowers 1--5, in terminal branches, 2.5--4 cm in diam. Sepals 5--8, yellow, not green when dried, not purplish outside, broadly obovate to narrowly obovate, or broadly elliptic, 1.2--1.9 × 0.7--1.4 cm, caducous. Petals ca. 12, linear-elliptic, 3--4 × 0.5--1 mm. Stamens 5--7.5 mm. Follicles 4--15, ca. 1 cm × 3 mm; persistent style 2.5--3 mm. Seeds ellipsoid-globose, 1.2--1.5 mm, smooth.
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