Rhizome long, with many lateral roots and fusiform root block; root block black, 4--10 mm, 1.3--1.7 mm in diam. Stem 10--18 cm tall. Basal leaves few, glabrous; petiole 5.5--7.5 cm; leaf blade subtriangular, to 6 cm wide, central leaflet petiolule slender; leaflet blade subflabellate, 0.8--1.5 × 1.5--2 cm, 3-parted; segments obovate, apically with 3 obtuse teeth. Inflorescences 2-or 3-flowered; bracts leaflike, subtriangular; lower bracts 2-ternate, uppermost bract ternate; segments 3-parted. Pedicel 1.5--6 mm. Sepals elliptic to narrowly obovate, 6.5--7.5 × 3--3.5 mm, apex obtuse. Petals obovate-elliptic, ca. 3 mm, basally shallowly scrotiform; claw ca. 0.4 mm. Stamens 20--30, ca. 5 mm; anthers ca. 0.6 mm. Pistils (1 or)2; ovary narrowly obovoid, flat, ca. 3 mm. Styles ca. 2 mm. Fl. May.
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