Japan Flora: Rhizomes short with innovation-shoots; culms 30-50 cm. long, smooth, ascending at base; leaf-blades rather flat, 7-15 cm. long, 4-6 mm. wide, short-acuminate, smooth, rather thick and soft, glaucous above; sheaths connate on the lower half, smooth, terete; ligules truncate, 0.5-1 mm. long; panicles nod­ding, ovate, 10-15 cm. long, open, the branches 2- or 3-nate, spreading, smooth, rather thick; spikelets rather long-pedi- celled, narrowly oblong, 7-8 mm. long, 3- to 5-flowered, glaucous-green with a purple hue; glumes unequal, lanceolate, smooth, very acute, the lower 1-nerved, about 4 mm. long, the upper 3-nerved, about 5 mm. long; lemmas lanceolate, acumi­nate, 5-nerved, glabrous on the sides, the intermediate nerves obscure, pubescent on the keel on the lower half and on the marginal nerves near base, the web wanting; anthers about 3 mm. long. July-Aug. Grassy slopes in alpine regions.

Hokkaido (Mount Taisetsu and Mount Yubari), Honshu (Mount Hayachine in Riknchu)