Pentameris glacialis N.P.Barker

Slender, tufted to decumbent perennial; up to 550 mm high; leaves cauline; culm slender, up to 1.5 mm wide, flexuous, geniculate, purple tinged. Leaf blade up to 100 mm long, rolled, usually straight; leaf sheath glabrous or pubescent along margins, loosely adpressed to culm. Inflorescence lax to somewhat contracted, to 70 x 30 mm, lanceolate, with 6-12(-15) spikelets. Spikelet 12.0-14.5 x 2.5-5.5 mm; lemma 2.5-3.0 mm long, lobes acuminate, 1.0-1.9 mm long, adnate for less than 1/2 its length to a lateral awn; lateral awns 3.0-4.5 mm long; central awn 10-12 mm long, column 3.5-5.5 mm long, bristle from knee to apex 7.5-8.5 mm long; lodicules cuneate, glabrous; ovary apex with a tuft of white hairs; fruit 2.5 x 1 mm, surface colliculately sculptured, pericarp brittle.