''Sagittaria isoetiformis'', common name quillwort arrowhead, is an aquatic plant species native to

Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...

and to the southeastern United States (

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

Alabama (We dare defend our rights) , anthem = "Alabama" , image_map = Alabama in United States.svg , seat = Montgomery , LargestCity = Huntsville , LargestCounty = Baldwin County , LargestMetro = Greater Birmingham , area_total_km2 = 135,765 ...

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...

Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the ...

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and ...

and

South Carolina )'' Animis opibusque parati'' ( for, , Latin, Prepared in mind and resources, links=no) , anthem = " Carolina";" South Carolina On My Mind" , Former = Province of South Carolina , seat = Columbia , LargestCity = Charleston , LargestMetro = ...

). ''Sagittaria isoetiformis'' is similar to '' Sagittaria tenuis'' and often mistaken for it, but ''Sagittaria isoetiformis'' has flattened leaves rather than leaves round in cross-section. Leaves of both species are usually submerged but sometimes emerging from the water.

References

External links

photo of herbarium specimen at Missouri Botanical Garden, syntype of ''Sagittaria isoetiformis''
* ttp://www.aquaportail.com/fiche-plante-455-sagittaria-isoetiformis.html Aquaportail ''Sagittaria isoetiformis''br>Gardening Europe, Piantaggine d acqua ''Sagittaria isoetiformis'' J.G. Sm.
{{Taxonbar, from=Q15572582 isoetiformis Freshwater plants Flora of Cuba Flora of the Southeastern United States Plants described in 1895 Flora without expected TNC conservation status