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Densely tufted perennial up to 1200 mm high; rhizomes long, strong, creeping. Leaf blade 100-500 mm x 2-5(-11) mm, tapering into a long, fine apex, glaucous, often curling when dry. Sessile spikelet 5-8 mm long; lower glume concave, keels not winged; upper lemma awn 5-20 mm long. Pedicelled spikelet 1-6 mm long; awnless or rarely awned from upper lemma.
Perennial, rhizomatous, up to 1.2 m high. Leaf blades 100-500 mm long, 2-5(-11) mm wide, leaves glaucous, tips tapering to a long, fine point. Spikelets (sessile) 5-8 mm long (pedicellate smaller); lower glume of sessile spikelets concave, keels not winged.
Inflorescence terminal, of (1)2–5 (rarely more) subdigitate racemes, each 6–20 cm long; rhachis internodes and pedicels glabrous to villous, yellowish to purple, subequal, the internodes clavate, the pedicels subinflated.
Sessile spikelet 5–8 mm long, lanceolate; inferior glume chartaceous, 2-keeled along its whole length, concave between the keels, glabrous to villous on the back, wingless; superior lemma with an awn 5–20 mm long.
Densely caespitose perennial with scaly rhizome; culms up to 200 cm high; leaf laminas 10–50 cm × 3–10 mm, glaucous, prominently nerved, tapering to a setaceous point.
A grass that keeps growing from year to year. It forms dense tufts. It has a scaly underground stem or rhizome. The stalks are 60-90 cm high.
Hairiness of spikelets varies considerably, from almost glabrous to densely villous.
Pedicelled spikelet 1–6 mm long, awnless or rarely awned from the superior lemma.
Perennial 60–90 cm. high
