Arrowhead, Broad-leaved/ Duck Potato/ Wapato

Sagittaria latifolia
A 1-4' plant with smooth, arrowhead-shaped leaves. The tapering, backwardly projecting basal lobes are half to fully as long as the main lobe. The 1" white flowers have 3 roundish, slightly notched petals and 3 small, sweptback sepals, and are in whorls of 3. Blooms July-September in shallow water at pond edges, ditches.