Wheel cactus is showing signs of being one of our most serious weed problems in the near future. We have a severe infestation on Mt Buckrabanyule, with pockets of infestations appearing on granitic country, but also now appearing across the plains. http://connectingcountry.org.au/08/mapping-wheel-cactus-infestations-in-victoria-2/
You can help us map existing infestations. If any community member finds an infestation of cactus they believe is wheel cactus, please take a photo of it and record its location (GPS if possible) and email these to Max, at email@example.com. He’ll confirm that the plant is wheel cactus and use this very helpful information on the map.