Japan Flora: Rhizomes to 15cm. long, 3-4 nun. in diameter, with white, coriaceous, lus­trous scales; culms erect, 50-120 cm. long, slightly flattened, sparingly branched; leaf-blades 10-20 cm. long, 3-8 mm. wide, flat; panicles slightly nodding, 10-30 cm. long, pale green with a purple hue, the branches ascending, scabrous; spikelets lan< ceolate, about 3 mm. long; glumes membranous, white, ob­tuse, obscurely dentate, faintly nerved, the first 0.5-0.7 mm., the second 0.7-1 mm. long; lemma pale lead-green, the awn straight, delicate, 8-10 mm. long; caryopsis lanceolate, 1.5-2 mm. long, free within the lemma and palea, not adherent Aug.-Sept. Woods in mountains.

Hokkaido, Honshu, Shi­koku, Kyushu; rather common. Korea, China, and Amur.