Eelgrass is the name of two types of underwater plants. One type grows in salt water and the other in fresh water.
Marine eelgrass grows in bays and other shallow coastal waters. It roots on the ocean bottom and bears slender, floating stems. Its tapelike leaves may be 6 feet (1.8 meters) long. A variety of animals, including eels, live in eelgrass or feed on it.
Freshwater eelgrass is also known as tape grass and wild celery. It grows in the mud of shallow ponds, sending up ribbonlike leaves directly from the root.
