Rhizomes elongate; culms 70-150cm Long, stout, 3-angled, leafy below, globoselythickened at base; leaves flat, 5-10mm Wide, gradually narrowed upward;inflorescence terminal, usually simple, with 3-8 rays to 7cm Long, the bracts 2-4leaflike, elongate; spikelets oblong, 2 or 3 on each ray, 10-20mm long, 6-8mm across;scales oblong, hyaline, brownish, nerveless, 5-6mm long, puberulent, emarginate, themidrib ending in a recurved awn 2-3mm long; achenes obovate, 3.5-4mm long,cuneate at base, 3-angled, at first whitish, finally dark brown, lustrous, with equal flatsides, the bristles 6, shorter than the scale, retrorsely scabrous. (Korea)