Non-Native T his submersed plant is rooted. Common waterweed occurs in streams, ponds, and lakes. T he slender stems of Egeria are usually a foot or two long, but can be much longer. The leaf margins have very fine saw teeth that require a magnifying lens to see.
Leaves occur in whorls of three to six around the stem.
The flowers are on short stalks about one inch above the water. C ommon waterweed may be confused with hydrilla, Hydrilla verticillata .