Japan Flora: Large stout herb; rhizomes thick, short­creeping; culms 40-100 cm. long, stout, glabrous, obtusely angled; leaf-blades flat, 6-12 mm. wide, coriaceous, the basal sheaths pale or partially sanguineous; inflorescence a large compound panicle, with numerous peduncled spikes, the branches hdspid-scabrous，the bracts leaflike, much longer than the inflorescence, long-sheathing; spikes androgynous, oblong or ovoid, 5-8 mm. long, light tawny; bractlets scalelike, awned; cladoprophyllum utricle-shaped; pistillate scales broadly ovate, cuspidate, lustrous, pale and ferrugineous- striolate, slenderly nerved; perigynia longer than the scales, 3.5- 4 mm. long, ovoid, inflated, glabrous or hairy at tip, rather abruptly long-beaked, witli an obliquely truncate hya­line tip; stigmas 3.  

Kyushu (Nagaura in Hizen Prov.); rare. Ryukyus, Formosa, China, and India.