A perennial plant with leaves that arise form a large spongy rhizome. The leaves have a slit that makes them roughly heart-shaped and can float on the surface or stand on the surface on thick round stalks. Flowers are spiracle with green sepals and yellow petals. Flowers can float on the water or stand above it.
Concern: They can form dense colonies that can impede recreational activities such as fishing, boating, and swimming.