I am really not sure about this one Justin. It certainly hasn't been mowed and there isn't a great deal of grazing pressure in the area either. I have seen quite a few of these plants through the Molonglo and Kama over the past few years and I have never seen them in seed.
Yeah, I think it's something different. They should be holding on to their seed stems still if not mowed and would seed every year. Doesn't have that classic erect form either. I don't know what it is though!