Arrowhead is botanically known as Sagittaria sagittifolia, and the herb belongs to the Alismataceae family of herbs. The genus Sagittaria has nearly twenty freshwater species distributed around the globe. The herb is named Arrowhead due to the fact that its triangular leaves resemble arrow points. Arrowhead is also known by the following other names – Wapatoo, katniss, duck potatoes and Hawaii Arrowhead.

As a plant, the herbaceous Arrowhead is perennial in nature and can grow in any shallow water body. The herb has fleshy and tuberous rhizomes that can be eaten by humans. The herb does not float in water as water lily, but is always found standing above the surface. Arrowhead has white colored flowers with a purple colored base, and the flowering time of this herb is during the months of July and August.