What species is the dragon fruit?

The dragon fruit, also known as pitaya, belongs to the genus Hylocereus and is primarily composed of several species, with Hylocereus undatus (white-fleshed dragon fruit) being the most commonly cultivated. It is a cactus native to Central America but is now grown in various tropical and subtropical regions around the world. The fruit is known for its vibrant pink or yellow skin and sweet, mildly flavored flesh speckled with tiny black seeds.