It is commonly seen along the Atlantic Coast from Maine to Florida. This variety grows submerged beneath the water's surface. It produces dark green, grass-like foliage that is rounded at the tip. The leaves are from 2 to 12 inches long. In shallow water, ovoid-shaped, floating leaves are often produced on the water's surface and sometimes linear, aerial leaves with obtuse tips.
White flowers float on the water's surface.
It may be difficult to establish in a pond with larger fish and may need some protection, but soon should be growing vigorously. The tubers, compost and a large stone can also be enclosed in a piece of burlap and dropped in the water. Once they are planted, they need no further attention, except to make sure they don't surpass their designated space by pulling out the wayward shoots in early summer. Place the tuberous roots just under the surface and cover with an inch of sand. The tub or tank is filled with water and the plants aren't disturbed until they begin to become crowd.