Japan Flora: Rhizomes short; culms densely tufted, 10-40 cm. long, obtusely angled, glabrous; leaf-blades 1-1.5 mm. wide, glabrous, rather thick; spikes solitary, terminal, androgynous, broadly lanceolate at anthesis, oblong when mature, 1-2 cm. long, densely rather many-flowered; pistillate scales narrowly ovate, deciduous, dark brown, obtuse; perigynia longer than the scales, 牛-5.5 mm. long including the rather prominent stipe, spreading to reflexed when mature, broadly lanceolate, slightly compressed, nerveless, moderately long beaked; stigmas 3, slender. July-Aug. Alpine slopes.

Hokkaido, Honshu (n. and centr. distr.). Europe, Siberia, and N. America.