Arrowhead

Sagittaria sagittifolia

''Sagittaria sagittifolia'' is a flowering plant in the family Alismataceae, native to wetlands most of Europe from Ireland and Portugal to Finland and Bulgaria, as and in Russia, Ukraine, Siberia, Japan, Turkey, China, Australia, Vietnam and the Caucasus. It is also cultivated as a food crop in some other countries. In Britain it is the only native ''Sagittaria''.
Arrowhead - Sagittaria sagittifolia Nationaal Park Weerribben-Wieden, Holland (Aug, 2013).  Arrowhead,Geotagged,Netherlands,Sagittaria sagittifolia,Summer

Appearance

''Sagittaria sagittifolia'' is a herbaceous perennial plant, growing in water from 10–50 cm deep. The leaves above water are arrowhead-shaped, the leaf blade 15–25 cm long and 10–22 cm broad, on a long petiole holding the leaf up to 45 cm above water level. The plant also has narrow linear submerged leaves, up to 80 cm long and 2 cm broad. The flowers are 2-2.5 cm broad, with three small sepals and three white petals, and numerous purple stamens.

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassMonocots
OrderAlismatales
FamilyAlismataceae
GenusSagittaria
SpeciesS. sagittifolia