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Robust, tufted perennial 600-1700 mm high. Leaf blade 40-200 x 3-8 mm. Inflorescence branches several to many, ascending; raceme rachis usually glabrous, sometimes with short hairs; spikelets unequally paired or on short adpressed side branches. Spikelet 3-4 mm long, densely pubescent; lower glume absent; upper glume awn up to 1 mm long; lower floret male, palea almost as long as lemma; upper lemma awn 0.3-0.7 mm long; anther 1.0-1.5 mm long.
Robust perennial, tufted, up to 1.7 m high. Leaf blades 40-200 mm long, 3-8 mm wide. Spikelets 3-4 mm long. Inflorescence branches several to many, ascending; raceme rhachises with short hairs; lower glume apparently absent; upper glume mucronate or with an awn-point to 1 mm long; lower floret staminate, with palea almost as long as lemma; female-fertile lemma with mucro 0.3-0.7 mm long.
Inflorescence of 6–many racemes, these 2–7 cm. long, bearing spikelets in pairs or on short appressed side branchlets, the rhachis triquetrous and puberulous or pubescent, rarely pilose.
Inferior glume absent; superior glume acuminate or with an awn-point up to 1 mm. long.
Spikelets 3–4 mm. long, narrowly ovate, appressedly pubescent.
Superior lemma usually with a mucro up to 0.5 mm. long.
Culms 60–120 cm. high, robust.
Inferior floret with a palea.
Tufted perennial.
