Dragonfruit
It is also known as “pitaya” if it comes from the very closely related Stenographers genus. The actual dragon fruit is the fruit of the cactus genus Hylocereus. Occuring in Mexico, South America, as well as Central America. It is possible it was introduced to Southeast Asian nations through Vietnam, alongside trade with the French during the 1800s. Cambodia, Thailand, Taiwan, Vietnam, and the Philippines, where it still holds as an important part of their diet.