American Pondweed

American pondweed (also called long-leaf pondweed) has elliptical-shaped floating leaves that are green and often have brown spots.

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Floating-Leaf Pondweed

Floating-leaf pondweed has long, narrow, stiff submersed leaves and two- to four-inch long floating leaves on long stalks.

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Illinois Pondweed

Illinois Pondweed

Illinois Pondweed has lance–shaped submerged leaves eight inches long that come to a point at the end.

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Northern Watermilfoil

Watermilfoil

Northern watermilfoil has feather-like leaves with five to 12 pairs of leaflets whorled around the hollow stem along the entire length of the plant.

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