Virginia Tech Weed Identification Guide , Virginia Polytechnic Institute and State University, Bugwood.org

Plant

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

Flower

William T. Haller, University of Florida, Bugwood.org

Infestation

Ann Murray, University of Florida, Bugwood.org

Plants

Robert Vidéki, Doronicum Kft., Bugwood.org

Plants

Robert Vidéki, Doronicum Kft., Bugwood.org

Fruit

Robert Vidéki, Doronicum Kft., Bugwood.org

Foliage