Grass-leaved Arrowhead

Sagittaria graminea

''Sagittaria graminea'', the Grass-leaved Arrowhead, is an aquatic plant species native to eastern North America. It is known from every Canadian province from Ontario to Newfoundland, and every US state from the Great Plains to the Atlantic, plus Colorado, New Mexico and Cuba. It is considered naturalized in Washington State and in Vietnam.

''Sagittaria graminea'' grows in wet areas such as marshes and the banks of rivers and lakes. It is a perennial herb up to 100 cm tall with long-linear, grass-like leaves.
Sagittaria graminea Used a blue paper as background..plant is taken over in our pond. Grass-leaved Arrowhead,Sagittaria graminea

Naming

A long list of varietal and subspecific names have been proposed over the years. Most have either been elevated to the species level or relegated to synonymy. At the present time only two are recognized:

⤷ ''Sagittaria graminea'' subsp. ''graminea''

⤷ ''Sagittaria graminea'' subsp. ''weatherbiana'' R.R.Haynes & Hellq.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassMonocots
OrderAlismatales
FamilyAlismataceae
GenusSagittaria
SpeciesS. graminea
Photographed in
Netherlands