Epiphyllum oxypetalum (Dutchman's Pipe, kardable, Night Queen or Gul-e-Bakawali)
Night blooming Cereus
Quote from wikipedia:
Native to Sri Lanka, the Kadupul flower blooms rarely and only at night – mysteriously, the flower wilts before dawn. In 1909, C. A. Purpus collected a slightly different type in St. Ana, Orizaba, Mexico. It has carmine red outer petals and the flowers have an unpleasant smell, rather than being fragrant. It was originally named Phyllocactus purpusii, but does probably not deserve any botanical recognition. The Chinese idiom 曇花一現 (tan hua yi xian) uses this flower (tan-hua; 曇花) to describe someone who has an impressive but very brief moment of glory, like a "flash in a pan", since the flower can take a year to bloom and only blooms over a single night. Therefore someone described as "曇花一現" is generally understood to be a person who shows off or unexpectedly gains some achievement and is thought to be an exception or only lucky.
is a cactus found in Northwestern Argentina. The plant blooms with a single unscented white flower followed by edible fruit
Echinocactus grusonii is a well known species of cactus native to central Mexico from San Luis Potosi to Hidalgo. Described by Heinrich Hildmann in 1891, it is popularly known as the Golden Barrel Cactus, Golden Ball or, amusingly, Mother-in-Law's Cushion. It belongs to the small genus Echinocactus, which together with the related genus Ferocactus, are commonly referred to as barrel cacti.