Table of sites with information on weeds
The IUCN-ISSG's Global Invasive Species Database
Weeds Australia
The US National Park Service's Weeds Gone Wild (Alien Plant Invaders
of Natural Areas);
The Center for Invasive Plant Management
The Center for Aquatic and Invasive Plants
The INVADERS Plant Database
The Center for Integrated Pest Management
The Invasive Plant Atlas of New England (IPANE)
International Databases
Terrestrial Plants Databases
Aquatic Plants Databases
Global Invasive Species Information Network (GISIN)