Ku Një Farë E Keqe
Amerika Veriut | Weed Science Society of America (2010) - Composite List of Weeds |
Evropë | NOBANIS - European Network on Invasive Alien Species |
Mbretërinë e Bashkuar e Irlandë | National Biodiversity Network - NBN Atlas |
Azia Lindore | T. Mito & T. Uesugi (2004) - Invasive Alien Species in Japan |