Plants 6–15 cm high, many cm long. Culm internodes 0.75–1 mm long. Leaves: sheath c. 5 mm long, 11–13-nerved, glabrous, smooth with scaberulous edges; ligule a fringe of hairs, c. 0.2 mm long; blade 11–25 mm long (including pungent apical spine of 1–1.5 mm), c. 2 mm wide, long-acuminate, thickly coriaceous, rigid, c. 7-nerved, glabrous, partly scaberulous on surfaces, spiny-scabrid on margins. Panicles shortly exserted, c. 15 mm long, c. 5 mm wide, eglandular. Glumes c. twice as long as florets, oblong, c. 1 mm long, truncate, dentate apically, mucronulate, 1–3-nerved. Lemma oblong, c. 0.5 mm long, obtuse to truncate, entire or dentate on apical margins, membranous or hyaline, 1-nerved. Palea nerveless. Caryopsis not seen.
Grows on bare sandstone boulders,seepage flats, and in damp sand among boulders near seasonal creeks.
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