Japan Flora: Rhi­zomes to 10 cm. long, about 2 mm. in diameter, covered with rather coriaceous, many-nerved, inflated, white scales; culms erect, slender, 40-80 cm. long; nearly simple; leaf-blades 10-20 cm. long, 2-4 mm. wide; panicles linear, erect, 10-15 cm. long, 1-10 mm. wide; the branches single or geminate, appressed; spikelets rather few, narrowly lanceolate, 4-4.5 mm. long; glumes narrowly lanceolate, 3-3.5 mm. long, acuminate; awn of tlie lemma 6니 0 mm. long, slender, erect; anthers 1.5-2 mm., rarely 13 mm. long; caryopsis narrowly lanceolate, about 2 mm. long. Aug.-Sept. Woods in mountains.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rather rare. Korea (Quelpaert Isl.)