Dove Un Erbaccia
Nord America | US Department of Agriculture |
Caraibico | R.P. Young [Editor] (2008) - A Biodiversity Assessment of the Centre Hills, Montserrat |
America Centrale | Portal Nacional sobre Diversidad Biologica en Guatemala |
America Meridionale | Inter-American Biodiversity Information Network |
Mediterraneo | CABI - Invasive Species Compendium |
Africa Orientale e Occidentale | CABI - Invasive Species Compendium |
Africa Meridionale | CABI - Invasive Species Compendium |
Asia Orientale | CABI - Invasive Species Compendium |
Asia Meridionale | P.S. Negi & P.K. Hajra (2007) |
Sud-Est Asiatico | CABI - Invasive Species Compendium |
Australia | Weeds Australia |
Isole del Pacifico | Pacific Island Ecosystems at Risk (PIER) |
Oceano Indiano | C. Kueffer & P. Vos (2004) |