Japan Flora: Densely pubescent annual; culms 30-70 cm. long; leaf-blades flat, 15-30 cm. long, 3-6 mm. wide; ligules subrounded, 1-2.5 mm. long; panicles 10-25 cm. long, broadly ovate, somewhat nodding to secund, branches 4- to 6-nate; spikelets rather dense, oblong, 15-25 mm. long, 6-8 mm. wide, rather densely 6- to 10-flowered, yellowish green; glumes scabrous, the lower broadly lanceolate, 5-7 mm. long, acute, 3-nerved, the upper 1- to 9-nerved, narrowly oblong, 7-8 mm. long, acute; lemmas thinly chartaceous, narrowly ovate-oblong, 9-11 mm. long, obtuse, slightly inflated above the middle on margin, the awn inserted below the apex, 2-3 mm. long, straight in the lower floret, to 12 mm. long, recurved in the upper florets; palea 7-8 mm. long; anthers 1 mm. long. May-July. Waste places and cultivated fields.
Hokkaido, Honshu, Shikoku, Kyushu; very common. Temperate regions of the N. Hemisphere.