waterlily
/ˈwɔːtəˌlaɪli/; /ˈwɔːtərˌlaɪli/Definitions
1. noun
a plant (Nymphaea spp.) with showy, flat flowers that grow on the surface of ponds, lakes, or slow streams, especially one with large, fragrant flowers
“The water garden was filled with beautiful waterlilies.”