Yellow Pond Lily or Bullhead Lily Nuphar variegatum

The Yellow Pond Lily is a memmber of the water lily family, but its flowers are distintive, with a large yellow central knob, surrounded by many extremely tiny petals, and only six to eight large sepals, which look like petals, while other water lilies tend to have numerous petals. The leaves of the yellow pond lily usually rise above the water, though they are lying flat upon it in the picture shown here. This type of water lily prefers very still ponds and lakes.