Saltcedar Biological Resource Page - USDA-ARS (Texas)

Exotic and Invasive Weeds Research Unit - USDA-ARS

Yellow Starthistle Information - comprehensive information about yellow starthistle

U.S. Fish and Wildlife Service - Invasive Species Program

BLM Environmental Education

Federal FICMNEW - Interagency Committee for the Mngmt of Noxious and Exotic Weeds

National Biological Control Institute

National Park IPM of Weeds

Team Arundo del Norte - a forum of local, state, and federal organizations dedicated to the control of Arundo donax