Perennial grass to 80cm tall or prostrate. Leaves with a hairy sheath at the base. Ligule a membrane without a fringe of hairs. Leaves flat, 4-24cm long, 1-7mm wide, hairy or hairless. Spikelets green, 6-45mm long excluding the awns. Inflorescence spreading. Seeds with one long awn, in groups of 5-14. Rare Vic.
Description and photo in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales page 68.
ausgrass2 description, photos, and line drawings: http://ausgrass2.myspecies.info/content/bromus-arenarius