Spatterdock

Nuphar advena

"Nuphar advena" is a species of "Nuphar" native throughout the eastern United States and at some parts of Canada, such as Nova Scotia. It is similar to the Eurasian species "N. lutea", and is treated as a subspecies of it by some botanists, though differing significantly in genetics.
Spatterdock Flower This is a picture of a Spatterdock Flower at Cash Lake on the South Tract of the Patuxent Research Refuge near Laurel, Maryland. Geotagged,Nuphar advena,Spatterdock,Spring,United States

Food

Spatterdock was long used in traditional medicine, with the root applied to the skin and/or both the root and seeds eaten for a variety of conditions. The seeds are edible, and can be ground into flour. The root is edible too, but can prove to be incredibly bitter in some plants.
Spatterdock At Governor Bridge This is a picture of a spatterdock in one of the ponds at the Governor Bridge Natural Area in Bowie, Maryland. Geotagged,Nuphar advena,Spatterdock,Spring,United States

Uses

Spatterdock was long used in traditional medicine, with the root applied to the skin and/or both the root and seeds eaten for a variety of conditions. The seeds are edible, and can be ground into flour. The root is edible too, but can prove to be incredibly bitter in some plants.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderNymphaeales
FamilyNymphaeaceae
GenusNuphar
SpeciesN. advena
Photographed in
United States of America