It is fascinating, Nymphaea is a genus of aquatic plants in the family Nymphaeaceae. There are about 50 species in the genus, which has a cosmopolitan distribution.
The common name, shared with some other genera in the same family, is Water Lily.The name Nymphaea comes from the Greek term "Νυμφαία", possibly related to "Νύμφη" meaning "nymph". The nymphs in Greek mythology were supernatural feminine beings associated with springs, so the application of the name to delicately flowered aquatic plants is understandable.
Nymphaea leaves have a radial notch from the circumference to the petiole (leaf stem) in the center.
Source: en.wikipedia.org/wiki/Nymphaea - 07.03.2012
Surrounded by protective trees, the sleepy pond is resting.