Japan Flora: Rhizomes loosely branched, with short-creeping innovations; culms slender, slightly scabrous, l(M0 cm. long, ultimately decumbent; leaf-blades flat, 1.5-2 mm. wide, rather soft, the basal sheaths dark reddish purple, splitting into fibers; spikes 2 or 3, erect, the terminal staminate, many-flowered, linear, 1-2 mm. long, with obtuse, margined, thin scales broadly scarious, the others pistillate, contiguous, 4-7 mm. long, ovate-ellipsoidal, rather few-flowered, the bracts scalelike, dark reddish purple, 4-6 mm. long; pistillate scales ovate-elliptic, acute, dark reddish purple; perigynia nearly as long as the s的les, about 2.7 mm. long, globose- obovoid, with 2 costal nerves, obscurely 3-angled, sparsely hispidulous, often glabrate, abruptly short-beaked, the beak purplish with an entire hyaline mouth; stigmas 3. July-Aug. Alpine slopes;
Hokkaido, Honshu (n. and centr. distr.); ratlier rare. e. Siberia, Sakhalin, Kuriles, and Kamchatka.