Alice if the grass is still around with a seed head could you please check whether the seed head is three-awned. It could one of the usually more western Aristide species which are rare within the ACT region such as Aristide jerichoensis or Aristide calycina.
hi Michael i dont think its around but I remember where it was and quite a bit of it came up at the time I took this pic. I will watch out for it and let you know.