Just visible in the distance in the middle of the photo; growing on leased land abutting nature reserve; see government signage and comment: https://canberra.naturemapr.org/sightings/4638927
Therefore the waypoint in the nature reserve does not indicate the correct location of the Serrated tussock. Visible also Cootamundra wattles (right) and some of the many dozens of Sweet Briars (left) which are some of the highly invasive woody weeds that Friends of Mt Majura tackle on the other side of the fence in the reserve.
No - I still have issues with the accuracy of < 10m required to map with Field Maps; it just takes too long ..... I had other things to do and no time to wait.