Appalachian Arrowhead
Sagittaria australis (J.G.Sm.) Small

Sagittaria australis, known as Appalachian Arrowhead, is a perennial herb in the Alismataceae family. It grows up to 130 cm tall and is native to North America. The species is distinguished by its five-winged petiole and white flowers up to 3 cm in diameter. It produces an achene with a recurved beak.
Description
Sagittaria australis is a member of the genus Sagittaria and is found in regions including Vermont, Alabama, Florida, and others across the Nearctic. This species was published in 1903 by Small, based on the original work by J.G. Smith. Its unique features include a five-winged petiole, which sets it apart from other Sagittaria species. The plant's flowers are white and measure up to 3 cm in diameter, and it produces an achene with a recurved beak. It is commonly referred to as Appalachian Arrowhead in English.
Other common names
Appalachian ArrowheadLongbeak Arrowhead
Distribution
Nearctic · Vermont-US · Alabama · Arkansas · Florida · Georgia · Illinois · Indiana · Iowa · Kentucky · Louisiana · Maryland · Mississippi · Missouri · New Jersey · New York · North Carolina · Ohio · Pennsylvania · South Carolina · Tennessee · Virginia · West Virginia
Synonyms
Sagittaria longirostra var. australis