Sagittaria calycina Engelm. - Central & S. U.S.A. to N. Mexico.
* Sagittaria chapmanii (J.G.Sm.) C.Mohr - from Texas to the Carolinas
* Sagittaria cristata Engelm - Crested arrowhead - Great Lakes region
* Sagittaria cuneata E.P.Sheld. - Wapato, Northern Arrowhead, Swamp Potato - most of Canada