Japan Flora: Rhizomes short, somewhat tufted, branching, ascending, brown fibrous; leaves elongating after anthesis, to 30 cm. long, 2-5 mm. wide, as long as the scape in anthesis, thin, glaucous be-neath, midrib not prominent, minutely papillose on upper margin; scapes 5-15 cm. long, 3- to 4-bracteate, 1-flowered, the bracts linear, green, long-acuminate, 4-6 cm. long, the pedicels about 8 mm. long; flowers blue-purple, 3.5-4 cm. across, the perianth-tube slender, 4-6 cm. long, die outer segments narrowly obovate, without a crested ridge in the center, clawed, the inner segments erect, slightly shorter than the outer ones; antliers yellow, about 4 mm. long, shorter than the filaments, the stigma-appendage deeply bifid; capsules globose. Apr-May.

Honshu (Chugoku Distr.), Shikoku, Kyushu. Korea, Manchuria, and n. China.