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Tufted perennial (280-)350-1200(-1500) mm high. Leaf blade 25-90(-102) x 1.5-5.0(-7.0) mm, flat; auricles absent. Inflorescence 3-5 mm wide (including awns), often partly enclosed in uppermost leaf sheath, green; rachis readily disarticulating into clusters of 3 at maturity. Central spikelet sessile, rachilla extension usually absent; glumes 4-11 x 0.3-0.5 mm, distinctly widened or flattened at base; lemma sparsely to densely hairy, awn 2.5-8.0 mm long; palea scabrid; anthers 2.2-4.4 mm long, yellow. Lateral spikelets rudimentary; upper glume setaceous or distinctly widened or flattened at base, 0.3-0.5 mm wide; rachilla extension stout and yellowish-green.
Perennial; (0.28-)0.35-1.20(-1.50) m high; tufted. Leaf blades 25-90(-102) x 1.5-5.0(-7.0) mm; leaf sheaths lacking auricles. Flowers: spike with clusters of spikelets on reduced rachilla; 3-5 mm wide (including awns); often partly enclosed in uppermost leaf sheath; rachis readily disarticulating at maturity; lemmas sparsely to densely pubescent; awn 2.5-8.0 mm long.
