2, dragon fruit is a cultivar of Cactaceae, Measurement of Heavenly Ruler genus Measurement of Heavenly Ruler, with yellow-white filaments, yellow-white styles, and red, oblong berries, small umbilicus, and white, red flesh. Seeds are obovate, black, umbilicus small. blooms and fruits from July to December.

3, distribution Central America to the north of South America, widely cultivated around the world, climbing by aerial roots on tree trunks, rocks or walls, 3-300 meters above sea level.

4, the species branch cuttings easy to survive, often used as grafting crabapple genus, cactus stick genus and a variety of cactus rootstock, flowers can be used as vegetables, berries can be eaten, the trade name "dragon fruit".