Japan Flora: Rhizomes stout，short; stems simple, erect, glabrous, 20-40 cm. long, terete, smooth; leaves 3, sessile, depressed rhombic-orbicular, 7-17 cm. long and as wide, glabrous, 3-nerved, abruptly short-acuminate, entire; peduncles 2-4 cm. long; flowers ascending to horizontal in anthesis, erect in fruit, the sepals 3, persistent, green or purple-brown, ovate to ovate-oblong, subobtuse, 15-20 nun. long, rather thick, the petals absent, or 1(-3), small, purple brown; anthers oblong, 25-3.5 mm. long, the filaments slightly longer than the anthers, broadened below; stigma very short; berry globose, 1-1.2 cm. in diameter, the seeds many, about 2.5 mm. long, arcuate-oblong, brown, with obscure longitudinal wrinkles. Apr.-May. Woods in foothills;

Hokkaido, Honshu, Shikoku, Kyushu.

The fruit is edible. Plants from the western part of the range usually have nar-rower leaves slightly longer than wide.