It is common in Mugga Mugga from the pond near Hindmarsh Drive and along the creek between Mugga Mugga and Isaacs Ridge but probably not such a heavy infestation this year. It is still present in other known sites. This dam site in Callum Brae is a new one for me. I se from the description it is an environmental weed in Victoria. It used to be a noxious weed in the ACT, when it was called Inula graveolens (the list I am looking at is October 1941). I think there are many daisies that should go back on the invasive species list.