Japan Flora: Tuber depressed-globose; pseudostem 17-35 cm. long; leaves 2, the petioles 5-15 cm. long; leaflets 5-9, oblong to ovate, abruptly long-acuminate, the terminal one 5-20 cm. long, 2-8 cm. wide; peduncle 5-8 cm. long; spathe purplish, the upper margins of the tube slightly recurved, the blade obliquely de­clined, broadly deltoid-lanceolate, 10-13 cm. long, gradually elongate at tip, forming a rather short taillike apex, dark purple with vertical white stripes; spadix-appendage thick- cylindric, not or scarcely thickened at apex, slightly thickened and truncate at base. Apr.-May.

Honshu (s. Kinki Distr.).