Japan Flora: Stout perennial from densely noded moniliform rhizomes 10 cm. long and 7-15 mm. in diameter; stems erect, ascending above, stout, 80-150 cm. long, simple, to 2 cm. in diameter near the base, glabrescent and pale purplish in lower part, leafy except at base; leaves lanceolate-oblong to ovate- oblong, 15-20 cm. long, 6-9 cm. wide, abruptly narrowed to an obtuse tip, rounded and short-petioled at the base, green and short-pubescent above, rather densely pubescent and glauces- cent beneath, the petioles 5-7 mm. long; inflorescence paniculate, densely pilose, 5-15 cm. long, 3-10 cm. wide，erect, manyflowered, the bracts minute，the flowers bisexual, white, 7 mm. in diameter, short-pedicelled, the tepals narrowly oblong or spathulate-oblong, 35-4 mm. long, 1-nerved; stamens 2.5 mm.long, the filaments white, subulate, the anthers about 0.7 mm. long; style very short, the stigma lobes short and thick.June-Aug. Mountains;

Honshu (Kotsuke and Shimotsuke Prov.)