When looking through the 31 "Passion Flower" images at Acclaim Images.com this Surreal Petals and Flowering Vine 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:
Surreal Petals and Flowering Vine
Purple passion flower, surreal petals, flowering vine.

Some related terms for more images:
passion flowers,  maypops,  flora,  verna bice,  flowering vine,  purple passion flowers,  passiflora,  botany,  passion vine,  passiflora incarnata,  passion vines,  floral,  flowering vines,  botanic,  botanical,