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Queen of the Night

Öökuninganna e suureõieline kuukaktus

Selenicereus grandiflorus

 

The flowers of the Queen of the Night open at night, but why?

 

In its native lands the temperature is lower at nights and so moisture evaporation from the flower is also lower. In the night and the light of the moon many suitable pollinators move around: moths or bats which feed on the nectar. The plant makes itself visible to the pollinators by the white and large flowers.