They also eat many aquatic plants such as lilies and water milfoil. In 2005, infestations of Eurasian water milfoil were discovered. Cattail and water milfoil grew around the lake. It seems to be associated with floating vegetation such as Hornwort and Water Milfoil ("Myriophyllum"). Water milfoil grows abundantly in the lake. To the untrained eye, whorled water milfoil can look similar to other species. Parrot feather ("M. aquaticum"), and hybrid water milfoil ("M. heterophyllum X M. laxum").