What kinda plant is this?

[BossHog]

Not sure of the name but that is actually some of the best duck feed around. We transplant and grow that around alot of our blinds every year. If u pull up the roots there will be some small white seeds which is what the ducks eat.

[Duck Butter]

Good website for aquatic plants

http://plants.ifas.ufl.edu/node/34?categoryId=6


Its difficult to tell exaclty which plant you have until it flowers, looks like young frogs bit though