Perennial, tufted, up to 1.5 m high. Leaf blades 150-400 mm long, 2-4 mm wide, leaves tending to be widely spreading. Spikelets 8-12 mm long; glumes acute or shortly awned, usually glabrous and rarely tubercled; lower lemma acute; female-fertile (upper) lemma lobes 1-2 mm long and acute; callus of female-fertile floret pointed or truncate; awns 30-40 mm long; stamens 3.