Rhizome cylindric, growing horizontally, up to 18 cm long, 1 cm ø, with the leaves and the inflorescences spaced. Leaves 2-6, in outline broadly ovate, palmati-3-or-5-sect, 18-25 by 25-30 cm, lobes entire, or when there are 3 lobes one or two shortly or deeply incised, (ob)-lanceolate, 9-31 by 3-8 cm, stalked, stalk of the central lobes 1.5-2.5 cm long, of the other lobes 0.5-1.5 cm, base attenuate, apex acuminate; petiole 25-45 by 0.2-0.4 cm, sheath 1.5-4 by 0.3 cm. Inflorescences 1-5, up to 30-flowered; scape 55-65 by 0.3-0.5 cm. Involucral bracts 4, decussate, 2 outer ones ovate, 1-1.5 by 1 cm, sessile, with acute apex; 2 inner ones ovate or cordate, 6.5-8 by 3.5-5 cm, with inflexed margins at the basal part, base attenuate, apex acuminate. Flowers 14-18 by 9-10 mm; pedicel 10-20 by 0.5 mm, inserted at the basal portion of the inner bracts; perianth tube 3-5 by 8-9 mm. Perianth lobes: 3 outer ones elliptic or ovate, 8-10 by 6-8 mm, with acute apex; 3 inner ones with a rounded to truncate apex, 4.5-5 by 4 mm, each composed of a triangular basal portion of 1-1.5 by 4 mm, connected by a narrower part of 1-2 by 1 mm to a broad elliptical portion of 3-4 by 4-5 mm, the sides of which are reflexed. Stamens: adnate portion of the filaments up to 1.5 by 2 mm, free apical portion up to 2 by 2 mm; thecae up to 2 mm long. Ovary 3 by 2 mm; disk absent; style 2 by 2 mm; stigmatic lobes 2 by 2 mm. Fruit pyramidal, 1.8 by 1 cm, triangular in cross-section, pericarp up to 1 mm thick. Seeds up to 26, (sub)rhomboid, 3 by 2 by 1.5 mm, 13-or 14-ribbed.
Humid, shady places, between bamboo, and in high thickets, at 500-650 m. Fl. fr. Dec.-April.
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