Japan Flora: Nearly glabrescent tufted perennials; culms 80-130 cm. long, glabrous; leaf-blades thin, narrowly lanceolate, plicate, glabrous, 20-30 cm. long, 1-3 cm. wide, acumi- nate, the lower ones narrowed to a petiolelike base; sheaths hairy on mouth and margins; panicles 20-30 cm. long, loosely branched, scabrous, the branches slender, spikelike, ascending; spikelets green, sometimes slightly purplish, ovate-oblong or narrowly ovate, 3.3-3.5 mm. long, acute; first glume ovate- rounded, about 1/3 as long as the spikelet, the second 2/3-3/4 as long, oblong, obtuse, 5- to rarely 7-nerved; sterile lemma narrowly ovate, 33-3.5 mm. long, rather acute, 5- rarely 7-nerved; fertile lemma as long as the sterile, lustrous, ovate-oblong, acute, distinctly rugulose. Sept.-Oct.
Kyushu. Ryukyus, Formosa, s. China, India, and Malaysia.