Japan Flora: Plants rhizomatous and with slender stolons; leaves narrowly linear, 10-20 cm. long, 2-3 mm. wide, 5- to 7-nerved, obtuse, subcoriaceous, slightly arcuate above; scapes 10-15 cm. long, slender, slightly flattened and obtusely angled; racemes 1-5 cm. long, about 10-flowered, the bracts and bracteoles membranous, small, the pedicels 2-4 mm. long, 1- to 3>nate, jointed below the flower or above the middle; tepals pale purple, about 4 mm. long; seeds globose, purple-black, 4-5 mm. in diameter. June-Sept. Thickets in lowlands and foothills;

Hokkaido, Honshu, Shikoku, Kyushu; rather common. Ryukyus and China.