What is a purple mangosteen?

The purple mangosteen (Garcinia mangostana), known simply as mangosteen, is a tropical evergreen tree believed to have originated in the Sunda Islands and the Moluccas of Indonesia. It grows mainly in Southeast Asia, southwest India and other tropical areas such as Puerto Rico and Florida, where the tree has been introduced. The tree grows from 6 to 25 m (19.7 to 82.0 ft) tall. 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. In each fruit, the fragrant edible flesh that surrounds each seed is botanically endocarp, i.e., the inner layer of the ovary. Seeds are almond-shaped and sized.

Mangosteen is a native plant to Sunda Islands and the Moluccas of Indonesia. Highly valued for its juicy, delicate texture and slightly sweet and sour flavour, the mangosteen has been cultivated in Java, Sumatra, Mainland Southeast Asia, and the Philippines since ancient times. The 15th-century Chinese record Yingyai Shenglan described mangosteen as mang-chi-shih (derived from Javanese manggis), a native plant of Java of white flesh with delectable sweet and sour taste.