Pest plant ACT. General biosecurity duty NSW.
http://weeds.dpi.nsw.gov.au/Weeds/Details/252
http://keyserver.lucidcentral.org/weeds/data/media/Html/onopordum_acanthium.htm
Onopordum acanthium is listed in the following regions:
Canberra & Southern Tablelands | South Coast
Maps
Block 402 Brindabella National Park Budjan Galindji (Franklin Grassland) Reserve Callum Brae Central Molonglo Collector TSR Crace Grasslands Dunlop Grasslands Eurobodalla National Park Farrer Ridge Goulburn Mulwaree Council Goulburn Wetlands Gungaderra Grasslands Gungahlin Pond Harcourt Hill Hughes Garran Woodland Isaacs Ridge Isaacs Ridge and Nearby Isaacs Ridge Offset Area Jarramlee-West MacGregor Grasslands Jerrabomberra Grassland Lake Burley Griffin Central/East Lions Youth Haven - Westwood Farm A.C.T. Mcleods Creek Res (Gundaroo) Molonglo River Reserve Mount Jerrabomberra Mount Majura Mount Mugga Mugga Mount Painter Mulligans Flat Phils Creek TSR Pine Island to Point Hut Point Hut to Tharwa Red Hill Nature Reserve Red Hill to Yarralumla Creek Scrivener Hill Stirling Park Sullivans Creek, Turner Wanniassa Hill Watson Green Space Watson WoodlandsPlaces
Boorowa, NSW Canberra Airport, ACT Collector, NSW Fadden, ACT Goulburn, NSW Gundaroo, NSW Hume, ACT Kambah, ACT Nicholls, ACT O'Malley, ACT Red Hill, ACT Symonston, ACT Watson, ACT Whitlam, ACT