Not too sure, I was curious about that too. It’s outside the Reserve boundary fence in the roadside area, growing underneath mature A. baileyana and surrounded by A. boormanii and other exotic woody weeds. It seems like an odd place to plant it if it was. I’ll try to find out.
Thanks, it is native to the ACT and on the rare plant list, while there are a few other locations such as Hughes Woodland where it is unclear whether the few plants that remain are planted or not.