Japan Flora: Smooth, nearly glabrous annual; culms 20-50 cm. long, branching at base, puberulent below the panicle; leaf-blades linear, 10-25 cm. long, gradually acute, smooth, glabrous except for a few long hairs near the mouth; ligule a series of short hairs; sheaths slightly flattened, glabrous; panicles cylindric, spikelike, erect, 3-10 cm. long, golden-yellow, the axils pilose-scabrous, with the bristles spreading, scabrous, 7-10 mm. long; spikelets broadly ovate, rather acute, 2.8-3 mm. long, whitish; first glume 3-nerved, about half as long as the spikelet, the second 3/5-2/3 as long, broadly ovate, 5-nerved; sterile lemma as long as the floret, 5-nerved; fertile lemma broadly ovate, finely rugulose, rather obtuse, lustrous. Aug.-Oct. Waste grounds and cultivated fields in lowlands.
Hokkaido, Honshu, Shikoku, Kyushu; common northw. Cosmopolitan in temperate areas.