Japan Flora: Plant rather large, tufted; culms stout, 40-70 cm. long, soft; leaf-blades broadly linear, flat, rather soft, the basal sheaths reddkh to cinnamon-colored, sparingly reticulate-fibrous, bladeless or nearly so; spikes 4 to 7, the upper 2 or 3 staminate, the others pistillate or rarely androgynous, short-cylindric to oblong, pendulous or nodding on capillary peduncles, the lower 1 or 2 bracts leaf like, not sheathing at base; pistillate scales broadly lanceolate, dark purplish sanguineous, acute and awned; perigynia ovate or broadly elliptic, appressed, about 5 mm. long, thin-membranous, rather flat, sparsely sctulose on the margins, short-stipitate, gradually narrowed into a beak with a minutely 2-toothed apex; achenes never maturing; stigmas 2. Rocky places in mountains.
Honshu (Japan Sea side in n. and centr. distr.); rare. This is probably a natural hybrid of C. aphyllopus X C. podogyna.