Family. Poaceae (Grass family).
Airas are small grasses with very slender stalks. They are common in bushland. All are introduced.
They are environmental weeds.
The distribution of the three Aira species is uncertain because of confusion between the species. In Handbook to Plants in Victoria, J.H. Willis 1970, the three were included in A. caryophyllea. In The Distribution and Conservation of Vascular Plants in the North central area, Victoria" A.C Beaglehole 1982, almost all were placed in A. cupaniana.