Perennial with elongated rhizome; culm 30-40 cm tall, 1 mm in diameter. Bldes tutfted near the base of the culm; cauline leaves 2-3, linear-lanceolate, 5-7 cm long by 5 mm wide; ligule membranous, about 1 mm long, truncate. Panicle contracted, cylindrical, 2 cm long 7 mm wide. Spikelets 1-flowered, 3 mm long; glumes subequal, chartaceous, laterally compressed, 3-nerved, 1-keeled, hairy, apex cuspidate. Lemma membranous, 2 mm long, 5-nerved, apex truncate. Palea membranous, oblong, nearly as long as the lemma. Caryopsis cylindrical, 1.5 mm long.
ILAN: Nanhutashan, Hsu 6024. TAICHUNG: Tahsuehshan, Huang 7214.
A cosmopolitan species distributed in Arctic and Antarctic zones and alpine regions.