Tuber depressed globose, 6-7 cm in diam. Leaves 2(or 3); petiole (5-)7-30 cm, proximal 3/4 sheathing and forming pseudostem; leaf blade 3-foliolate or pedately 5-foliolate; rachis between leaflets 0-6 cm; leaflets sometimes covered with fine whitish marks, obovate to narrowly oblong, 7-11 × 4-7 cm, base cuneate, margin entire or serrate, occasionally denticulate, apex acute; central leaflet with petiolule 5-25 mm; lateral leaflets remote from central one for 1-30 mm; outermost leaflets sessile, 9-15 cm, oblique, cuneate at base on inner side, auriculate or rounded on outer side. Peduncle shorter than petioles. Spathe greenish to dark purple, usually with pale purplish stripes; tube funnelform to cylindric, ca. 5 cm, ca. 2 cm in diam. at throat, throat obliquely truncate, not auriculate; limb ovate-lanceolate to oblong, 3-4 cm, apex acuminate. Spadix unisexual; female zone subconic, ca. 2 cm, ca. 1 cm in diam. at base; ovary obovoid; ovules 4; stigma spherical; male zone cylindric, ca. 2 cm × 2-3 mm; synandria lax, nearly sessile; anthers 2 or 3; thecae globose, dehiscing by apical pores. Appendix stipitate, erect, cylindric and robust, 3-5.5 cm × 4-5(-7) mm, base truncate, apex obtuse. Berries red, narrowly conic. Seeds 4, red, ovoid, smooth. Fl. May, mature fr. Sep. 2n = 28, 56.
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A herb that keeps growing from year to year. It is 45 cm high. The had tubers that are round and flattened and 6-7 cm across. It has one or two leaves. These are divided into about 5 leaflets which radiate out. The leaflets are broadly oval or sword shaped and 10-13 cm long. The bract around the flower is hooded and white. There are dark red or green stripes. It is 11 cm long. The flower spike is like a cylinder and 3.5 cm long.
It is a temperate plant. It grows in deciduous forest, mixed forest, under woods, by streams between 50-200 m altitude in northern China. It is frost hardy. It suits hardiness zones 5-9.
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Virgin forests, mountains and river banks. Deciduous forest, mixed forest, under woods and by streams at elevations of 50-200 metres in China.
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