A 'Queen of the Night' cactus (Selenicereus grandiflorus) is seen in bloom at St Petersburg's Botanical Garden in Russia on May 23, 2017. The species is extremely rare and blossoms once a year only for several hours. (Photo/Sipaphoto)
RIGHT BG
A 'Queen of the Night' cactus (Selenicereus grandiflorus) is seen in bloom at St Petersburg's Botanical Garden in Russia on May 23, 2017. The species is extremely rare and blossoms once a year only for several hours. (Photo/Sipaphoto)