Located in SE Michigan. Pond is roughly 15 acres. Lots of American Pondweed and then this. Not sure what it is, was thinking maybe a milfoil but not sure? Wondering if it's a beneficial or not? It's all under the water.
Picture is not good enough nor close enough of the plant for a good identification. Put a good top section of one stem/leaves in a shallow pan with water so the leaves lay out naturally and a picture of it on a white or light color background.