Tufted perennial 600-700 mm high, forming large floppy tussocks; obscure linear glands on pedicels present or absent. Leaf blade to 350 x to 5 mm setaceous, expanded or rolled; margins smooth. Inflorescence open; with 100-150 spikelets; axils glabrous. Spikelet 6-7 mm long, awnless; lemma 4-5 mm long, glabrous or hairy all over; palea glabrous or hairy; anthers 2-3 mm long.
Perennial; up to 0.7 m high; tufted; forming large; floppy tussocks; sometimes with obscure; linear glands. Leaf blades up to 350 x 5 mm. Flowers: inflorescence a panicle; branches with axils glabrous; spikelets 6-7 mm long; lemmas muticous.