Nelumbo is a genus of aquatic plants with large, showy flowers. Members are commonly called
lotus, though "lotus" is a name also applied to various other plants and plant groups, including the unrelated genus
Lotus. Members outwardly resemble those in the family Nymphaeaceae ("water lilies"), but
Nelumbo is actually very distant to Nymphaeaceae. "Nelumbo" is derived from the Sinhalese word Sinhalese: නෙළුම්
neḷum, the name for the lotus
Nelumbo nucifer
(Wikipedia)