[4] It is obliquely obovate, the margins winged, with an apical or ventral beak; in other words, they are a small, dry, one-seeded fruit that do not open to release the seed, set on a slant, narrower at the base, with winged edges, and having a "beaked" aperture (one side longer than the other) for sprouting, set above or below the fruit body.Many species have edible roots, prized for millennia as a reliable source of starch and carbohydrates, even during the winter.[8] They can be harvested by hand or by treading the mud in late fall or early spring, causing light root tubers to float to the surface.[4] Native American peoples such as the Algonquian, Omaha, Pawnee, and Winnebago used the tubers for food, prepared by boiling or roasting.[9] Sagittaria is mentioned in the Omaha myths "Ishtinike and the Four Creators" and "How the Big Turtle Went to War".