The invaders are here. Actually, they’ve been here. Not only that, they’ve put down roots. The University of Georgia’s Center for Invasive Species and Ecosystem Health (a collaborative project with the Plant Conservation Alliance‘s Alien Plant Working Group, the folks behind Weeds Gone Wild) maintains a database of information about the perniciously pesky plants that invade natural areas in the U.S. The database, known as the Invasive Plant Atlas, contains a wealth of useful information for students interested in ecology and the effects of organisms that end up where they shouldn’t be.