| ufl.edu | Center for Aquatic and Invasive Plants |
| fws.gov | Federal Interagency Committee for the Management of Noxious and Exotic Weeds |
| psu.edu | How Landowners Can Prevent Invasive Plant Species |
| fnps.org | Florida Native Plant Society |
| hawaii.edu | Hawaiian Alien Plant Studies, UH Botany |
| blm.gov | How to Prevent the Spread of Noxious Weeds |
| se-eppc.org | Southeastern Exotic Pest Plant Council |
| afnn.org | Association Of Florida Native Nurseries 2002-2003 |
| ucdavis.edu | TNC Wildland Weeds Management & Research |
| floridastateforest.org | Friends of Florida State Forests |
United States , Georgia , Athens