Noxious Weeds in the US and Canada

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This web site provides a searchable database of the noxious weed lists for all U.S. states and six southern provinces of Canada. The database can be searched by plant name, state name, or by clicking on a map.

Our newest addition to this site is a summary of this database. This summary provides a list of all noxious weeds, which can be customized to display in alphabetical order (on scientific name) or by the number of appearances on weed lists.

This portion of the INVADERS web site is supported by the USDA Agricultural Research Service.

Principal investigators: Dr. Kerri Skinner, University of Nebraska - Kearny, NE
Dr. Lincoln Smith, USDA-ARS Western Region Research Center, Albany, CA
Peter Rice, University of Montana - Missoula, MT

Contact Information

Project Director: Peter Rice
Division of Biological Sciences
University Of Montana
Missoula, MT 59812

Phone: (406) 243-2671
Fax: (406) 243-4184
Email: peter.rice@umontana.edu