Nassella hyalina

Tufted perennial, culms occasionally branched, erect, to c. 0.7 m high, nodes glabrous. Leaves glabrous; blade flat or somewhat inrolled, to 20 cm long and 4 mm broad; ligule glabrous, 0.2–2 mm long. Inflorescence a contracted panicle to 25 cm long. Glumes 9–12 mm long, hyaline to straw-coloured, acuminate, the lower up to 2 mm longer than upper; lemma 3.5–4.5 mm long (excluding corona), pale brown or purplish at maturity, finely tuberculate, glabrous except near the callus and along the midrib; corona 0.5–1 mm long excluding the erect apical hairs or slender spines to 0.3 mm long; callus 0.5–1 mm long; awn twice bent, 35–40 mm long, 4–8 mm to the first bend, scabrous; palea c. 1 mm long, hyaline, glabrous. Flowers Nov.–May.