The red pitaya (Hylocereus lemairei) belongs to Cactaceae (the Cactus family). It is a treelike cuctus that is native to northern South America, and the Caribbean islands. This cactus is a succulent, evergreen, climbing shrub that can grow in the branches of trees or on the ground. It produces aerial roots which it uses to support itself. The stems are 2-3 cm in diameter. The flower is white and bat pollinated. The fruit is red, dehiscent and birds love it.