Bud emerges from a spine cluster on a Peruvian apple cactus. (Cereus peruvianus)
Over the course of a week or so the bud elongates and turns bright green.
The flower blooms for one night only, and wilts in the morning sun.
Bud and blossom with pollinated fruit below.
The night-blooming cereus is pollinated by the white-lined sphinx moth (Hyles lineata).
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