Floating: Water Lettuce
Water lettuce is makes a rosette of gray-green leaves. It can impede navigation and affect habitat.
Emergent: Aligatorweed
The aligatorweed is an aggressive, mat forming perennial with a white flower on a stem. It can impede navigation and displace native vegetation.
Submergent: Eurasian Watermilfoil
The Eurasian Watermilfoil has a red stem when it is actively growing and just has a stem with leafy strands. It can impede navigation and shade out native vegetation.
In native areas these plants are controlled by native organisms that will feed on them and control their levels.
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