When looking through the 210 "Dandelion" images at Acclaim Images.com this A Tree Close Up with Blurred Trees and Field in the Background was a favorite.
All of their pictures are hand picked, availiable in a number of formats, and you can even get custom prints and posters.

Description:
A Tree Close Up with Blurred Trees and Field in the Background
Photo of a tree close up with blurred trees in the background and a field of dandelions in springtime.

Some related terms for more images:
fence,  spring,  natural,  countryside,  serenity,  weed,  calm,  tranquil,  dandelion,  dandelion fields,  trees,  springtime,  nostalgic,  scenic,  dandelions,  dandelion flowers,  peaceful,  tranquility,  nature,  landscapes,  weeds,  serene,  rural,  studio 33 photography,  environment,