Japan Flora: Erect, slender, tufted perennial or annual; culms 20-50 cm. long, sometimes loosely pubescent; leaf-blades flaccid, flat, 5-10 cm. long, 3-6 mm. wide, usually loosely pubescent; ligules ovate, 1-   4 mm. long; panicles long-exserted, spikelike, sometimes in­terrupted, broadly lanceolate-cylindric, 4-7 cm. long, 7-15 mm. wide, the branches short, scabrous, usually sparsely pilose; spikelets lanceolate, lustrous, 8-10 mm. long, fulv이is-yellow or yellowish green; glumes strongly unequal, folded, some­times sparingly long-pilose, the first narrowly ovate, acumi­nate, 1-nerved, 3-6 mm. long, the second broadly lanceolate, 2-  nerved, 8-10 mm. long; sterile lemmas narrowly oblong, brown-pubescent except the tip, the lower one with a short erect awn slightly below the apex, the upper with a geniculate, twisted awn about 7-9 mm. long from the middle; fertile floret brown, about 2 mm. long, lustrous; anthers 4-5.5 mm. long. May-July. Introduced and naturalized; Hokkaido, Hon­shu, Shikoku, Kyushu; common. Europe and Siberia, now naturalized widely in temperate regions.

var. furumii (Honda) Ohwi. Plant glabrous; panicles cylindric, not broadened in lower part, glabrous; sterile florets 3.5-4 mm. long, the lemmas glabrous on the upper third. July-Aug. Indigenous in alpine regions;

Hokkaido (Mount Rishiri), Honshu (Akaishi Mountain Range); very rare.         Korea.