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False panicle 20–60 cm long, copiously branched; spatheoles 2–3.5 cm long, narrowly lanceolate, at length reddish; peduncles half as long to almost as long as the spatheoles, glabrous or pilose above with spreading white hairs; racemes 1–1.5(2) cm long, 6–9-awned per pair, glabrescent to fulvously pilose, embraced by the spatheole, terminally exserted, not or very rarely deflexed; raceme-bases unequal, the superior 1.5–2.5 mm long, terete, usually softly hirtellous, sometimes glabrous, the articulation with the peduncle tip glabrous.
Tufted perennial to 3000 mm high; rhizomatous; culms stout. Leaf blade to 600 x to 8 mm. Inflorescence copiously branched; spatheole narrowly lanceolate, 20-40 mm long; racemes often clasped at the base by spatheoles at maturity; raceme bases terete, unequal; raceme pairs with 6-10 awns. Sessile spikelet 4 to 5 mm long, hairs pale brownish, scanty; awn (10-)20-30 mm long; callus 0.4-0.8 mm long. Pedicellate spikelet 3-5 mm long, hairs pale brownish, acute or mucronate at apex; anther 2.2 mm long.
Perennial; up to 3 m high; rhizomatous and tufted. Culms stout. Leaf blades up to 600 x 8 mm. Flowers: in a complex; copiously branched; false panicle; spatheoles narrowly lanceolate; 20-40 mm long; raceme pairs with 6-10 awns; awns (10-)20-30 mm long; racemes often clasped at base by spatheoles at maturity; raceme bases terete; unequal; sessile spikelets 4-5 mm long; with hairs reddish brown or yellowish; scanty; callus 0.4-0.8 mm long.
Perennial (culms stout), rhizomatous and tufted, up to 3 m high. Leaf blades up to 600 mm long, 8 mm wide. Spikelets (sessile) 4-5 mm long (hairs pale brownish, scanty, callus 0.4-0.8 mm long). Panicle copiously branched; spatheoles narrowly lanceolate, 20-40 mm long; raceme pairs with 6-10 awns (10-)20-30 mm long, racemes often clasped at base by spatheoles at maturity; raceme bases terete, unequal.
Sessile spikelets 4–5 mm long; callus 0.4–0.8 mm long, cuneate, obtuse; inferior glume lanceolate, yellowish-brown or violet-tinged, the hairs usually fulvous but often pallid and scanty, the back usually glossy; awn (1)2–3 cm long, the column rufously pubescent.
Pedicelled spikelets 3–5 mm long, narrowly lanceolate, acute or mucronate (or with a bristle not more than 1 mm long) at the apex; callus absent; pedicel-tooth short, broadly triangular.
Homogamous spikelets similar to the pedicelled, a single pair at the base of the inferior raceme or both racemes.
Leaf sheaths glabrous; leaf laminas up to 60 cm × 8 mm, rigid.
Caespitose perennial; culms up to 300 cm high, stout, erect.
