I don't really think you have Oakes pondweed, but Oakes' does have a similar floating leaf as the one in your picture. Try searching using: Potamogeton oakesianus.
Most likely your plant is one of the more common floating, large leaf pondweeds. There are only a few of this type in Ohio and Midwest. I used a couple of my technical aquatic plant books for choosing possible names for your floating leaf pondweed. One really needs to see the lower leaf structure and the leaf and stipule placement with the seeds to verify the correct name of the floating leaf pondweed.
Manual of Aquatic Plants. A Great Lakes Wetland Flora. and Michigan Flora.
Last edited by Bill Cody; 06/23/15 09:09 AM.
