American pondweed

American pondweed is a common name for several aquatic plants, and may refer to:


 * Elodea canadensis, in the family Hydrocharitaceae, with many small leaves on a submerged stem
 * Potamogeton epihydrus, in the family Potamogetonaceae, and known as "American pondweed" in the British Isles
 * Potamogeton nodosus, in the family Potamogetonaceae, with large floating leaves born on elongated petioles