close up of the flower head of a queen of the night cactus. it only blooms for one night, selenicereus grandiflorus

background beautiful beauty biology bloom blooming blooms blossom blossoms botanical botany bright cactus close closeup color exotic family flora floral flower flowers garden gardening grandiflorus green head leaf leaves macro magical mysterious natural nature needle night nighttime one only opening orange pink plant pretty queen selenicereus spring summer tropical white yellow