Nelumbo nucifera, also known as Indian lotus, sacred lotus, bean of India, or simply lotus.
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.
There are only two known living species in the genus. The sacred lotus (N. nucifera) is native to Asia, and is the better known of the two. It is commonly cultivated, and also used in Chinese medicine and cooking. This species is the national flower of India and Vietnam. The American lotus (N. lutea) is native to North America and the Caribbean.---wikipedia
Nymphaea, Members of this family are commonly called water lilies, many species are cultivated as ornamental plants, they are known commonly as water-lilies, also styled water lilies and waterlilies.
Nymphaea caerulea, known primarily as blue lotus (or blue Egyptian lotus),
but also blue water lily (or blue Egyptian water lily)
Nymphaea nouchali, common names blue lotus, star lotus, water lily, blue star water lily etc, in blue, red and white colour...It is native to southern and eastern parts of Asia, this species is sometimes considered to include the blue Egyptian lotus Nymphaea caerulea.
Nymphaea lotus, the white Egyptian lotus, tiger lotus, white lotus
or Egyptian white water-lily
Nymphaea alba, also known as the European white waterlily, white lotus, white water rose or nenuphar, is an aquatic flowering plant of the family Nymphaeaceae.