Nymphaea is a genus of hardy and tender aquatic
plants in the family Nymphaeaceae. This
is one of several genera of plants known
commonly as lotuses. It is not related to the legume genus Lotus or
the Chinese and Indian lotuses of genus Nelumbo. It is closely related to Nuphar lotuses, however. In Nymphet,
the petals are much larger than the sepals, whereas in Nuphar the petals are much smaller. Source
