Where A Weed
North America | Weed Science Society of America (2010) - Composite List of Weeds |
South America | Inter-American Biodiversity Information Network |
Europe | NOBANIS - European Network on Invasive Alien Species |
UK & Ireland | National Biodiversity Network - NBN Atlas |
Mediterranean | L. Celesti-Grapow et al (2009) |
East Asia | T. Mito & T. Uesugi (2004) - Invasive Alien Species in Japan |
Middle East | S. Hassannejad & S.P. Ghafarbi (2012) |