Japan Flora: Coarse herb; rhizomes thick, short; culms stout, 1-1.5 m. long, thickened at base; leaves 10-15 mm. wide; corymbs large, 10- 20 cm. long and as broad, compound to decompound with erect to spreading rays to 7 cm. long, the bracts 3-5, leaflike, much longer than the inflorescence; spikes cylindrical, bearing numerous densely arranged spikelets; spikelets obliquely spreading, 4-6 mm. long, slightly compressed, light yellowish; scales elliptic, about 2 mm. long, acute; achenes % as long as the scale, grayish brown, concave-convex; stigmas 3.  Sept.-Oct. Kyushu (Fukuoka Park). Indochina and Malaysia.