Japan Flora: Rhizomes rather hard, creeping, to 5 cm. long, covered with small deltoid scales; culms solitary, 20-60 cm. long, slender, glabrous; leaves several, basal, shorter than the culm, 1-2 mm. wide, glabrous, the mouth of sheath not hairy; inflorescence 2-4 cm. long, with 3-10 loosely disposed spikelets, the bracts 2 or 3, subulate or scaly, short; spikelets broadly lanceolate, 7-15 nun. long, 3-4 mm. wide, acute, brownish; scales narrowly ovate, 5-6 mm. long; achenes about 1.2 mm. long, whitish, with transversely oblong reticulations, the areoles slightly depressed in the center; stamens 3, the anthers about 25 mm. long, linear. July-Oct. Grassy places in mountains.

Honshu (Kinki, Chugoku Distr.), Shi­koku, Kyushu; rather rare. Korea, Philippines, and India.