A round leaf of the Nymphaeaceae family (water lilies).
Common lily pads have a notch in each leaf and always float on the water's surface. This helps distinguish them from lotus leaves, which rise above the water's surface as they mature and do not have notches unless they are damaged.
Examples
Each common lily pad (Nymphaea) has a notch
Lily pads always float on the water's surface
Non-examples
Young and weak lotus leaves usually float on the water's surface, especially during rain
Mature lotus leaves rise above the water's surface and are not notched unless damaged
