Japan Flora: Rhi­zomes perpendicular, with rather stout adventitious roots; leaves lanceolate-acuminate, 20-30 cm. long, 1-2 cm. wide, tapering at base to an elongate petiole, becoming sheathlike at base, loosely pilose, the nerves slender, several; flowers few, on long; flowers long-pilose outside, the tepals yellow, lanceo­late, few-nerved, about 8 mm. long, the periamh-stipe filiform, 2-2.5 cm. long, becoming a beak in fruit; fruit elliptic. May-Aug.

Honshu (Chugoku Distr.), Shikoku, Kyushu. China, Ryukyus, Formosa, India, Malaysia, and Australia.