Dragonfruit is also commonly called Pitaya Fruit or Pitahaya Fruit (also Pitajaya Fruit) or Strawberry Pear. Dragonfruit is the most common name. Dragon fruit cactus is grown commercially in Asia in places like Thailand and Vietnam for the fresh fruit of the cactus plant which may then be sold fresh or sold as the dried dragon fruit.
Foodlywise dragon fruit pages explain in detail dragon fruit nutritional benefits and the health benefits of dragon fruit, as well as how to grow dragon fruit and how to eat dragon fruit.