Search Common Name Apply Photo by: Graves Lovell, Alabama Department of Conservation and Natural Resources, Bugwood.org Alligator Weed Photo by: okinvasives.org Brittle Naiad or Brittle Waternymph Photo by: Ryan Hagerty (USFWS) Carp, Bighead Photo by: USGS , US Geological Survey Carp, Grass Photo by: USGS , US Geological Survey Carp, Silver ODWC Photo Didymo Photo by: Robert L. Johnson, Cornell University, Bugwood.org Eurasian Watermilfoil ODWC Photo Golden Algae Photo by: Chris Evans, University of Illinois, Bugwood.org Hydrilla Photo by: Forest & Kim Starr Parrot's Feather Photo by: Duane Raver, US Fish and Wildlife Service Perch, White Photo by: Barry Rice Purple Loosestrife Pagination 1 2 Next › Next page Last » Last page