James H. Miller, USDA Forest Service, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org

Randy Westbrooks, Invasive Plant Control, Inc., Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org

Nancy Dagley, USDI National Park Service, Bugwood.org