Chris Evans, University of Illinois, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Montana Statewide Noxious Weed Awareness and Education Program , Montana State University, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org

Julia Scher, USDA APHIS PPQ, Bugwood.org