Japan Flora: Rhizomes densely tufted; culms 30-50 cm. long; leaf-blades 1.5-3 mm. wide, the basal sheaths dark brown, somewhat fibrous; spikes 2-4, erect, 15- 2.5 cm. long, the terminal staminate, linear, pale, the others pistillate, distant, somewhat loosely flowered, the lowest bract leaflike, longer than the spike, sheathing at base; pistillate scales pale green, obovate, rounded and short-awned; peri­gynia broadly obovoid, 3-3.5 mm. long, suberect, nerved, pubes­cent, abruptly short-beaked, obtusely 2-toothed at tip; stigmas 3. Apr .-May.

Kyushu (Tsushima). Korea and Man­churia.