Noxious weed in Victoria.
https://keyserver.lucidcentral.org/weeds/data/media/Html/silybum_marianum.htm
Silybum marianum is listed in the following regions:
Canberra & Southern Tablelands | Albury, Wodonga | South Coast | Central West NSW | Gippsland
Maps
Albury Alison Hone Reserve Bruce Ridge Bruce Ridge to Gossan Hill Budjan Galindji (Franklin Grassland) Reserve Cooma North Ridge Reserve Dryandra St Woodland Googong Foreshore Gossan Hill Goulburn Mulwaree Council Isaacs Ridge Isaacs Ridge and Nearby Jerrabomberra Wetlands Jervis Bay Marine Park Jindalee National Park Lake Ginninderra Mount Ainslie Mount Ainslie to Black Mountain Mount Majura Mount Painter Phillip Island Nature Park Red Hill Nature Reserve Red Light Hill Reserve Scrivener Hill Stirling Park Umbagong District ParkPlaces
Belconnen, ACT Cooma, NSW Paling Yards, NSW