Illinois_pondweed
Potamogeton illinoensis
Species of aquatic plant
Potamogeton illinoensis, commonly known as Illinois pondweed[1] or shining pondweed, is an aquatic plant. It provides food and cover for aquatic animals.[2]
It is generally not weedy in its native range, but it is a troublesome noxious weed in Viedma, Río Negro, Argentina, where it is an introduced species.[3]