Nymphaea sect. Nymphaea

Nymphaea sect. Nymphaea
Nymphaea candida flower
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Nymphaea
Section: Nymphaea sect. Nymphaea
Species

See here.

Nymphaea sect. Nymphaea is a section within the subgenus Nymphaea subg. Nymphaea of the genus Nymphaea native to North America and Europe.