Tufted perennial 150-400 mm high; base glabrous; basal sheaths either forming a sheath of burnt-off bases or white, shiny, persistent; leaves basal; stalked or sunken glands present on leaves, pedicels and glumes or absent. Leaf blade to 300 x to 0.8 mm, rolled, rigid; margins scabrid; sheath mouth hairy. Inflorescence open, 30-70 x 20-50 mm, with ±100 spikelets; pedicels not hidden by spikelets, glabrous; axils hairy. Spikelet 3.5-5.0 mm long, awnless or occasionally only one lemma awned; glumes usually obtuse, sometimes acuminate, generally purple below, drying straw-coloured, glabrous or scaberulous along keels; lemma 3.0-3.5 mm long, hairy all over or basally only, often dark-coloured; palea hairy in upper third; anthers 1.6-2.0 mm long.
Perennial; up to 0.4 m high; tufted; stalked or sunken glands present on leaves; pedicels and glumes or absent. Leaf blades up to 300 x 0.8 mm; curly. Flowers: inflorescence a panicle; spikelets 3.5-5.0 mm long; not awned or occasionally one lemma awned; inflorescence with ± 100 spikelets; branches with axils sparsely to densely hairy; glumes usually obtuse; sometimes acuminate; lemmas muticous; often dark coloured.