People stay up at night to enjoy the opening of the flowers of the tropical wonder Epiphyllum petalum, better known by its common name, queen of the night flower, or orchid cactus, not to be confused ...

A tall, column-shaped cactus native to South America goes by many names, including Queen of the Night cactus, Hedge cactus, and Night-blooming Cereus (Cereus hildmannianus). Flowers open at night and ...

Espostoa frutescens is a type of column-shaped cactus found only in the Ecuadorian Andes mountains. It has small flowers on its side that open at night, attracting bats as they fly from flower to ...