Japan Flora: Perennial with short rhizomes; culms tufted, erect, rather firm, 60-100 cm. long, glabrous; leaf-blades flat, linear, 15-40 cm. long, 3-5 mm. wide, with slightly recurved margins; ligules deltoid, 1-3 mm. long, glabrous, obtuse to rounded; culm-sheaths rather short; inflorescence compound, narrow, cylindric, interrupted, erect, 20-40 cm. long, the branches rather short, the spathes 1-2 cm. long; racemes geminate, scarcely exserted from the spathe, spreading or reflexed, 15-20 mm. long, pale green to dull purplish; pedicelled spikelets broadly lanceolate, 4-6 mm. long, staminate9 awnless; fertile spikelets broadly lanceolate, 5-6 mm. long, with an awn about 10 mm. long. Aug.-Nov. Open places in hills

Honshu, Shikoku, Kyushu. Formosa, Philippines, Indochina, China, and Manchuria.