Japan Flora: Rhizomes slender, 3-4 mm. in diameter, with elongate internodes; stems 20-40 cm. long, terete, ascending and angled above; leaves 4-7, narrowly ovate to ovate-elliptic, 5-10 cm. long, 2.5-4 cm. wide, subses- sile to short-petiolate, glabrous, subglaucous beneath; peduncles 1-2 cm. long, smooth, bracts 2(-3), at the top of peduncle, ovate to ovate-orbicular, smooth, many-nerved, 1.5-3 cm. long, 1-2.5 cm. wide, the pedicels paired, 2-4 mm. long; flowers white, greenish at the tip, urceolate-tubular, about 25 cm. long, glabrous; filaments laterally flattened, granular-papillose, slightly longer than the anthers. May-June. Meadows in mountains;
Hokkaido, Honshu, Shikoku, Kyushu; rather rare. Korea, Manchuria, and Ussuri.