Donde un Mala Hierba
América del Norte | US Department of Agriculture |
Caribe | R.P. Young [Editor] (2008) - A Biodiversity Assessment of the Centre Hills, Montserrat |
América Central | Portal Nacional sobre Diversidad Biologica en Guatemala |
América del Sur | Inter-American Biodiversity Information Network |
Mediterráneo | CABI - Invasive Species Compendium |
África Oriental e Occidental | CABI - Invasive Species Compendium |
África del Sur | CABI - Invasive Species Compendium |
Asia del Este | CABI - Invasive Species Compendium |
Asia del Sur | P.S. Negi & P.K. Hajra (2007) |
Sudeste Asiático | CABI - Invasive Species Compendium |
Australia | Weeds Australia |
Islas del Pacifico | Pacific Island Ecosystems at Risk (PIER) |
Océano Índico | C. Kueffer & P. Vos (2004) |