Japan Flora: Rhizomes firm, creeping horizontally; culms 30-50 cm. long, rather thick, terete, the basal sheaths few, scale like; inflorescence pseudolateral, 6- to 10-flowered, the lowest bract culmlike, having the appearance of a continu­ation of the culm, 10-20 cm. long; flowers solitary, 6-7 mm. long inclusive of the capsule; perianth-segments lanceolate, acute, greenish brown dorsally, reddish brown on both mar­gins; stamens 6, about half as long as the perianth-segments, the anthers as long as or slightly longer than the filaments; capsules obovoid-oblong, somewhat acute at apex, exceeding the perianth, dark brown; seeds obovoid-oblong, nearly 1 mm. long.  Aug.-Oct. Wet sandy places along seacoasts.

Hok­kaido. Kuriles, Sakhalin, Korea, e. Siberia, Kamchatka, and Alaska