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Spikelets 6–18-flowered, 13–25 mm long, oblong to narrowly ovate-oblong, often gaping at maturity, distant to overlapping; glumes 1-nerved, the inferior 4.1–6.5(8.4) mm long, linear-lanceolate, subacute to acuminate, the superior (5)6.2–9(11) mm long, narrowly lanceolate, often exceeding the adjacent lemma, acute to acuminate; callus densely barbate; lemmas (4.2)5–7(8.5) mm long, narrowly elliptic-oblong, dorsally rounded or obtusely keeled, conspicuously narrowed above the middle, subentire or minutely 2-lobed at the apex, the lateral nerves sometimes extended into short teeth; awn (0.5)1–5 mm long; anthers 2, 1.4–2(2.4) mm long.
Robust, caespitose perennial often with a short oblique rhizome; culms up to 65 cm tall, wiry, stiffly erect from a thickened bulb-like base, rarely geniculately ascending; basal leaf sheaths persistent, broad and whitish, eventually withering and irregularly splitting; leaf laminas (2)5–23(28) cm × 0.5–2(4) mm, narrowly linear, convolute or rarely flat, tapering to a fine point.
Racemes 8–25 cm long, erect, rather stiff, straight or slightly curved.
Caryopsis 2.2–2.8 mm long, narrowly oblong, terete.
Narrow involute leaf-blades up to 15 cm. long
Densely tufted perennial about 30 cm. high
