Invasive Plants of Oklahoma

Maps for confirmed county distributions in Oklahoma are by Oklahoma Biological Survey and should be considered works in progress.


Alternanthera philoxeroides, Alligator weed

Alligator weed is an aquatic growing on mud or in shallow water with leaves primarily held above the water. Listed on the Oklahoma invasive aquatic plant list as a plant to watch but has moved up.

Photo: Richard Old, XID Services, Inc., Bugwood.org & Chris Evans, River to River CWMA, Bugwood.org