Sagittaria sagittifolia (also called arrowhead because of the shape of its leaves) is an Old World flowering plant in the family Alismataceae.

Sagittaria sagittifolia is a herbaceous perennial plant, growing in water from 10–50 centimetres (4–19+1⁄2 inches) deep.

Panicled flowers are 2–2.5 cm broad, with three small sepals and three white petals, and numerous purple stamens.

[3] It is native to wetlands in most of Europe (it is extinct in Spain) and Asia in Finland and Bulgaria, in Russia, Ukraine, Siberia, Turkey and the Caucasus.

[7] S. sagittifolia is used in Chinese medicine,[citation needed] and in 2006 seven new ent-rosane diterpenoids and a new labdane diterpene were purified from the plant.