Japan Flora: Culms 20-40 cm. long, slender; leaf-blades 1-3 mm. wide; spikes 4-6, androgynous, linear-cylindric, loosely flowered, simple, soli- tary or paired at each node, 1-2.5 cm. long, the lower bracts ieaflike, sheathing; pistillate scales oblong, rather obtuse, fer- rugineous; perigynia longer than the scales, elliptic, 4 mm. long, less than 1.5 mm. wide, faindy nerved, loosely his pidulous on the nerves, stipitate, rather long-beaked, minutely 2-toothed at tip; stigmas filiform, shorter than the perigynia. Sept-Oct.
Honshu (Miyakejima, Ise, and Yamoto Prov.), Shikoku, Kyushu; rare.