One of about 30 species of similar looking plants with an arrowhead shaped leaf. Leaf has many uniform veins originating from the center and curving toward the margin. White, 3 petal flower arranged at the end of a thick stalk separate from the leaf.

Forms dense colonies on wet soil that become more open as the water deepens. Has a high affinity for rich phosphate soils and hard water. A favorite food for beavers and muskrats.

Control is effectively obtained through the use of contact aquatic herbicides.