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Tufted, robust perennial, 0.9-2.4 m high. Leaf blade 200-450 x 5-10 mm, broadly linear to linear lanceolate; ligule a fringe of hairs. Inflorescence a compound false panicle, branches filiform, usually in groups of 2-5; rachis ribs rounded, involucral stumps distinct, minutely hairy; involucre reduced to a single bristle 3-4x as long as spikelet, glabrous, scabrid. Spikelet 2.5-3.5 x 1 mm; glumes ± equal, rarely unequal, 0.2-0.5(-0.8) mm long. Florets 2; lower floret male or sterile, lemma as long as spikelet, membranous, scaberulous to minutely hairy; upper floret bisexual; anther 1.2-1.5 mm long, without tuft of hairs at apex. Flowering time Mar.-June.
Tufted robust perennial 900-2 400 mm high. Leaf blade 200-450 x 5-10 mm, broadly linear to linear lanceolate; ligule a fringe of hairs. Inflorescence an axillary, compound, leafy, false panicle; branches filiform, usually in groups of 2-5; rachis ribs rounded, involucral stumps distinct, minutely hairy; involucre reduced to a single bristle 3-4 x as long as spikelet, glabrous, scabrid. Spikelet 2.5-3.5 x 1 mm; glumes 0.2-0.5(-0.8) mm long, obtuse to emarginate rarely subacute; lemmas as long as spikelet, membranous, scaberulous to minutely hairy; anthers 1.2-1.5 mm long, without tuft of hairs at apex.
Panicles 2–4 cm. long, slender, axillary and gathered into a copious false inflorescence; rhachis with rounded ribs and distinct peduncle stumps, minutely pubescent; involucre reduced to a single bristle subtending each spikelet; bristle (2.5)7–40 mm. long, glabrous.
Perennial, tufted, up to 2.4 m high. Leaf blades 200-450 mm long, 5-10 mm wide. Spikelets 2.5-3.5 mm long, 1 mm wide. Inflorescence a compound panicle, branches filiform, usually in groups of 2-5; spikelets subtended by a single bristle 3-4 times as long as spikelet.
A grass. It forms tufts and keeps growing from year to year. It grows 3.5 m high. The stalks are 1.5 cm across. The leaves are firm and taper to the tip.
Glumes 0.2–0.5 mm. long, obtuse to emarginate, or rarely the superior up to 0.8 mm. long and subacute.
Leaf laminae (5)10–30 cm. wide, broadly linear to linear-lanceolate, often falsely petiolate.
Culms 0.6–4 m. high, typically robust and 2–15 mm. in diam. at the base.
Lemmas as long as spikelet, membranous.
Spikelets 2–3 mm. long.
Perennial.
