grass-leaved arrowhead

The grass-leaved arrowhead (Sagittaria graminea) is a species of perennial herb found in the family Alismataceae. It is distributed throughout eastern North America and grows in shallow lakes, ponds, and streams. This plant is characterized by its leaves, which resemble arrowpoints, and it produces flowers with three rounded petals and achene fruits. Like other arrowheads, it has fleshy rhizomes, and sometimes tubers, which have been historically eaten by Native Americans and early settlers. The genus Sagittaria includes about 28 species worldwide, many of which are known for their edible tubers and are sometimes cultivated or used in pond restorations. Some arrowhead species have also been introduced as ornamentals and have become invasive in certain regions.1