Japan Flora: Culms stout, tufted, 30-100 cm. long; leaf-blades 5-10 mm. wide, soft, partially cinnamon-colored, the ligules thin, the basal-sheaths bladeless, reddish to cinnamon-colored; spikes 3-6, somewhat distant, the upper 1-3 staminate, lan­ceolate, the others pistillate, pendulous on long capillary pe­duncles, ovoid to nearly globose, densely many-flowered, 2-4 cm. long, the lower bracts leaflike, not sheathing; pistillate scales lanceolate, dark purplish brown, obtuse and short- awned; perigynia longer than the scales, linear-lanceolate, 12- 15 mm. long, compressed, light green, often dark brown vari­egated, thin-membranous, nerveless, Iong-stipitate, hairy on the margins and sometimes sparsely so on the faces, gradually long beaked, with a 2-toothed apex; stigmas 2. June-July. Wet cliffs and rocky banks of ravines.

Hokkaido (sw. distr.), Honshu (n. and centr. distr. especially on the Japan Sea side).