Japan Flora: Rhizomes tufted; culms 30-70 cm. long, slender, often nodding above; leaf-blades 3-5 mm. wide, the basal sheaths dark sanguineous; spikes 3-5, contiguous, oblong to narrowly so, 1.5-3 cm. long, the terminal gynecandrous, the others pistillate, sessile, or the lower ones peduncled, the bracts nearly leafIike, not sheathing; pistillate scales ovate-elliptic, dark brown, the yellowish midnerve excurrent into a short erect awn; perigynia somewhat coriace이is, longer than the scales, elliptic, 4-5 mm. long, turgid, planoconvex, strongly nerved, stramineous to light cinnamon-brown, abruptly very short- beaked, with a nearly entire dark colored tip; stigmas 3. June-July. Sandy places along seacoasts.
Hokkaido, Honshu (Mutsu Prov.〉. Sakhalin, Kuriles, Ussuri, Kamchatka, and n. Korea