Environmental weed in NSW and Vic (as Taraxacum officinale).
http://keyserver.lucidcentral.org/weeds/data/media/Html/taraxacum_officinale.htm
Taraxacum sect. Taraxacum is listed in the following regions:
Canberra & Southern Tablelands | Greater Melbourne
Maps
Banksia Street Wetland Corridor Bibbenluke Common Bruce Ridge to Gossan Hill Flea Bog Flat, Bruce Genoplesium plumosum target area Genoplesium vernale target area Goulburn Mulwaree Council Majura Primary School, Watson Mcleods Creek Res (Gundaroo) MichaelBedingfied's Home Garden Monga National Park Namadgi National Park Simpsons Hill Souths TSR on Mountain Ash Road Top Hut TSR Turallo Nature Reserve Wanniassa HillPlaces
Bruce, ACT Carlton North, VIC Chisholm, ACT Dry Plain, NSW Fadden, ACT Gundaroo, NSW Gundary, NSW Monga, NSW Mount Clear, ACT Murrumbateman, NSW Tennent, ACT Watson, ACT