Anisopogon avenaceus

Tufted, shortly rhizomatous perennial, culms simple, erect, to 1.3 m high, nodes glabrous. Leaves glabrous; blade flat, inrolled or involute, to 40 cm long and 6 mm long, smooth except for the finely scabrous nerves and margins of the upper surface; ligule a ciliate collar to 1.5 mm long. Inflorescence a loose panicle of up to 8 large, pendulous spikelets. Spikelets 35–70 mm long (excluding awns); glumes opaque, green, becoming straw-coloured, narrowly oblong and truncate at apex, the lower up to 12 mm shorter than upper; floret narrowly cylindric, 10–18 mm long; lemma pale at maturity, entirely covered with short silky hairs; callus 4–6 mm long; central awn once bent, 60–110 mm long, twisted in the lower half, lateral pair of awns erect or slightly spreading, straight or spirally twisting, 25–40 mm long; palea exceeding body of lemma by up to 5 mm. Flowers Oct.–Nov.