Sorry for not submitting whole shot. Not sure if this is the annual or perennial mission grass growing in road verge. Height is over 2 m but the coloring of the bristles may suggest the annual mission grass. The first photo shows inflorescence in different stages of development on the same stem and are to about 200 mm long.
Distinctive grass, i assume with botanical knowledge the photos should be possible to get sp ID
Mount Kulburn Drive.