Hvor Ukrudtsplante
Nordamerika | Weed Science Society of America (2010) - Composite List of Weeds |
Sydamerika | Inter-American Biodiversity Information Network |
Middelhavet | Plants of the World Online |
Sydlige Afrika | I.A.W. MacDonald (2003) - Invasive Alien Species in Southern Africa |
Øst Asien | T. Mito & T. Uesugi (2004) - Invasive Alien Species in Japan |
Australien | Australian Government - Weeds in Australia |
New Zealand | C. Howell (2008) - Consolidated List of Environmental Weeds in NZ |
Stillehavsøerne | Pacific Island Ecosystems at Risk (PIER) |