Tufted perennial to 1000 mm high; base of plant glabrous; dead leaf blade breaks off above sheath mouth, the remains then curl into a tight spiral. Leaf blade to 600 x to 1.5 mm, convolute. Inflorescence dense, 150-250 mm long. Spikelet 15-17 (including awns) x 6-8 mm, 2-4-flowered; glumes 11-13 mm long, 1-nerved (short lateral nerves near base); lemma 7.5-9.0 mm long, with 3 unequally spaced tufts of white hairs on either side of the central nerve, and two tufts of hair on either side of central nerve near the margins, the most basal tufts are on the margins; lobes adnate to the central awn for 1/4-3/4 of their length, ending in a short fine awn; central awn 12 mm long; anther 1.7-2.6 mm long.