Japan Flora: Sparingly pilose peren­ nial with short rhizomes; culms 70-120 cm. long, glabrous, nodes about 6, pilose; leaf-blades membranous, linear, 20-30 cm. long, 6-10 mm. wide, flat; ligules about 1 nun. long, truncate; panicles nodding, broadly ovate, 15-25 cm. long, the branches 2- to 3-nate; spikelets pale green, tinged with yellow­ish brown, 6- to 7-flowered, 15-20 mm. long; glumes narrow, the lower 6-7 mm., upper 8-9 mm. long; lemmas 10-12 mm. long, appressed-pubescent especially near margin, obtuse and bidentulate, with a short awn between the teeth; palea 8-9 mm. long; antliers elliptic, yellow, 1-1.2 mm. long.  June-July. Grassy places in lowlands; Hokkaido. s. Kuriles and s. Sakhalin.