|Many types of wet habitat, such as ponds, streams, and marshes.
Stems are known to reach 3 metres long.
Plants may have bisexual or unisexual flowers, with some plants bearing
only male or only female flowers. The fruit is a shiny brown rounded
achene around 3 millimeters long. Various parts of this plant were used by several Native American groups
as medicinal remedies and sometimes as food.