Japan Flora: Rhizomes short; culms 15-25 cm. long, densely tufted, slender, smooth, with old sheaths bearing intravaginal innovations from the base; leaf-blades narrowly linear or subulate, involute or with involute margins, the radical to 20 cm. long, with long white hairs near base on upper side; ligules very short; spikes at length exserted, erect, 10니5 cm. long, narrow; spikelets in 2 rows on the axis, secund, sessile, ap- pressed, linear-oblong, 6- to 8-flowered, 5-7 mm. long, pale lead-green, lustrous; glumes lanceolate, 1-nerved, the first acute to mucronate at apex, nearly 3 mm. long, the second gradually narrowed to tip, ending in a short awn about 1 mm. long; lemmas narrowly oblong, 2.5-3 mm. long, obtuse with 2 hyaline teeth at apex; awn 4-5 mm. long, geniculate; anthers 1-1.5 mm. long.