Leaves are shaped like an arrowhead. They grow in clusters from the base and can be from less than a foot tall to over 4 feet tall. It may have some elliptical emergent leaves and sometimes will also have ribbon, or tongue-like submersed leaves. It has underground rootstocks with tubers and may have tiny white flowers present.
Concern: They can spread rapidly by seeds and rhizomes. When they grow out of control they can impede water activities such as swimming, boating, and fishing.