Plants forming mats and loose hummocks, 1 m high, 1.3 m wide, with prop roots, resinous. Leaves: sheath smooth, not auriculate, mostly glabrous; orifice pubescent or bearded with resin-matted hairs more than 5 mm long; blade flexuose, flat or conduplicate, more than 30 (–60) cm long, 3.3 mm wide when flat, not pseudopetiolate, closely nerved or grooved near centre, with prickly margins. Panicles dense, to 40 cm long, 2–5 cm wide; axis terete; branches numerous, erect, simple or lower ones sparsely divided, to 9 cm long, compressed or angular. Spikelets numerous, broadly linear, terete or somewhat compressed, 10–13 mm long, 1.5–2 mm wide, closely 9-flowered; pedicel 3.5–10 mm long. Glumes ±equal, lanceolate, 4–5 mm long, entire, long-acuminate or acute, muticous, thinly cartilaginous, obscurely nerved or 3-nerved, glabrous. Callus bearded laterally. Basal lemma oblong-obovate, 5–6.5 mm long; body indurated, obscurely nerved, hairy in lower half on margins and sometimes on back and along midnerve; lobes equal, 1–2 mm long, flat, acuminate, muticous. Palea slightly exceeding lemma body, oblanceolate, entire, indurated (thinner near apex), glabrous; keels wingless. Anthers not known.
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