Found in water with slow moving to moderate currents. Fruit is in a loose crown with 3 leaves. Found at water's edge in moderate currents. Found in 1-2' deep, slow moving water. Round dark green stems.
Tubers make food for muskrats.
2-3' high triangular stems with sharp angles. The flower spikes are red-brown and scale covered. The flowers are yellow with 5 petals and 10 stamens. Seeds large and tough. The leaves are dark green and glossy.