Mangosteen is a plant native to Southeast Asia. Highly valued for its juicy, delicate texture and slightly sweet and sour flavour, the mangosteen has been cultivated in Indonesia and Mainland Southeast Asia, and the Philippines since ancient times. The fruit of the mangosteen is sweet and tangy, juicy, somewhat fibrous, with fluid-filled vesicles (like the flesh of citrus fruits), with an inedible, deep reddish-purple colored rind (exocarp) when ripe.