Rhizome branched, erect or slightly oblique, short, 2--4 cm × 6--10 mm. Leaves 2--5; petiole 6--10 cm, sparsely puberulent or subglabrous, base sheathing, surrounded by fibrous remnants; leaf blade ternate, pentagonal or pentagonal-ovate, 3--7 × 3--8 cm, foveolate and roughish, strigose, base cordate; petiolules 1--2 mm; central leaflet 3-lobed, rhombic, base cordate, margin incised serrate, apex long acuminate; lateral leaflets unequally 2-parted, obliquely flabellate. Scape 4--6 cm, puberulent distally; cyme 1-flowered. Involucral bract petiole 0.5--1 cm × 1--2 mm; bract blade ternate, similar to that of leaves but smaller, 1.5--3.5 × 2--4 cm, sparsely puberulent; petiolules 1--2 mm; central segment 3-parted to 3-lobed; lateral segments 2-parted. Pedicel ca. 2 cm, densely substrigose. Sepals 5, white, obovate, 5--7 × 3--4 mm, densely puberulent, basal veins 3--5, vein anastomoses absent, base narrowed, apex rounded. Stamens 2--3 mm; filament filiform; anther ellipsoid, apex minutely mucronate. Ovary ovoid, ca. 2.5 mm, glabrous; style curved, short. Achenes not seen. Fl. Sep.
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