Japan Flora: Soft slender herb with very short rhi­zomes; stems tufted, 10-15 cm. long, usually bearing 1 leaf; leaves all filiform, more or less compressed, deeply channeled above, 0.5-1 mm. thick, the radical leaves slightly shorter to longer than the stem; heads solitary, terminal, 1- to 4-flowered, the lowest bract short, leaflike; flowers 5-7 mm. long including the capsule, pedicellate; perianth-segments equal in length, hyaline, light green, linear to broadly linear, rather obtuse; stamens 6, longer than the perianth-segments and nearly as long as the mature fruit, the anthers much shorter than the filaments, exserted from the perianth; capsules narrowly ob- ovoid-ellipsoidal, longer than the perianth, yellowish or light brown, somewhat membranous; seeds with a white tail on each end, 2 mm. long；Aug.-Sept. Wet rocks in forest zone.

Honshu (centr. distr.). Korea.