Brazilian Waterweed (Egeria densa)Category 1: Potential Aquatic Invasive Species Credit: Rebekah D. Wallace, University of Georgia, Bugwood.org Giant Reed (Arundo donax)Category 1: Potential Aquatic Invasive Species Credit: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Giant Salvinia (Salvinia molesta)Category 1: Potential Aquatic Invasive Species Credit: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Hydrilla (Hydrilla verticillata)Category 1: Potential Aquatic Invasive Species Credit: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Brittle Naiad (Najas minor)Category 2: Priority Aquatic Invasive Species Credit: Troy Evans, Great Smoky Mountains National Park, Bugwood.org