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Very densely tufted perennial 250-1000 mm. Leaf blade to 700 x 0.5 mm, tightly rolled, setaceous, scaberulous; ligule acute. Inflorescence contracted, usually not extending above leaves. Spikelet 4.0-5.0(-5.5) mm long (excluding awn); glumes ± equal, very long acuminate, membranous, hyaline, flushed purple; lemma ± laterally compressed, widest at middle, elliptic, symmetrical, strongly overlapping, rounded to crown; crown straight-sided, rim hairs less than 0.5 mm, finely tuberculate, hairy basally; awn ± centrally placed, up to 80 mm long, fine, inconspicuously geniculate, twisted, scabrid; callus short, obtuse, long hairy; anthers 1.2-1.5 mm long.
Plants dense, to c. 0.7 m tall. Leaves: sheath tight around culm, glabrous, smooth; ligule 0.5–2.5 mm long, obtuse or truncate; blade convolute-filiform, 0.25–0.5 mm diam., bristly. Inflorescence only partly exserted from sheath, contracted, with spikelets borne on long capillary pedicels, sometimes detaching at maturity. Glumes acuminate; lower glume 8–10 mm long; upper glume 5–7 mm long. Callus shortly oblique, bearded. Lemma 2–3 mm long, obscurely 5-nerved, antrorsely scabrous towards apex; corona absent; awn 50–90 mm long, ±straight, rather tardily deciduous. Palea nerveless.
Very densely tufted perennial, 0.25-1.00 m high, often drooping at maturity. Leaf blade up to 700 x 0.5 mm, tightly rolled, setaceous; ligule an unfringed membrane. Spikelets 4.0-5.0(-5.5) mm long (excluding awn), laterally compressed; glumes ± equal, longer than spikelet, similar, rounded on back, 3-nerved, not swollen around floret at base. Floret 1; lemma firmer than glumes, becoming indurated, tuberculate, rough, strongly overlapping; awn centrally placed, up to 80 mm long, fine, geniculate, twisted. Flowering time Jan.
