Tufted perennial to 900 mm high, erect to geniculate; rhizome long; culm much branched. Leaf blade to 120 x to 2 mm. Spikelet 18-25 mm long (including awns); lower glume longer than upper glume, long tapering to an acuminate apex (this often breaks very early, giving a false idea of the length), no awn or mucro present; lemma without articulation, but a beak or short, twisted column present; awns three, two laterals shorter than central; callus apex naked, rounded to truncate; anther 1.9-3.2 mm long.
Perennial; up to 0.9 m high; long-rhizomatous and tufted; erect to geniculate. Culms much branched. Leaf blades up to 120 x 2 mm. Flowers: panicle contracted to lax; spikelets 18-25 mm long (including awns); lower glume longer than upper glume; long-tapering to acuminate apex (breaking off early); awn or mucro absent; lemmas without articulation; beak or short; twisted column present; awns 3; 2 laterals shorter than central; callus apex naked; rounded to truncate.