Bouea macrophylla, commonly known as the gandaria, plum mango, mango plum, marang, or maprang, is a tropical evergreen tree in the family Anacardiaceae. It is native to the humid tropical forests of Southeast Asia, including Malaysia, Indonesia, Thailand, and parts of Vietnam. The genus name Bouea honors the French naturalist Jean-Nicolas Boué, while the species epithet macrophylla is Latin for "large-leaved," referring to its prominent, glossy, lance-shaped foliage. Historically, this species has been a vital, though localized, food source in Southeast Asian rainforest ecosystems, transitioning from a foraged wild fruit to a cultivated orchard crop that is particularly prized in Thai and Indonesian markets.

The tree is an attractive, fast-growing evergreen that can reach heights of 10 to 20 meters, featuring a spreading crown and a dense canopy of dark green leaves. It produces small, inconspicuous flowers that develop into clusters of small, subglobose drupes. When immature, these fruits are pale green and firm; as they ripen over 3–4 months, they transition to a vibrant yellow or orange-gold. The fruit's structure is remarkably similar to its botanical cousin, the mango, consisting of a thin, edible skin enclosing a juicy, succulent mesocarp and a large, fibrous central seed. *Bouea macrophylla* thrives in high-humidity, tropical lowland environments and requires fertile, well-draining soil.

The fruit is celebrated in Southeast Asian gastronomy for its complex flavor profile, which is often described as a sophisticated hybrid of mango and plum. The taste can range from intensely tart to sugary sweet, depending on the cultivar—varieties like ma-yong chid are highly sought after for their perfect balance of sweetness and acidity. The fruit is primarily consumed fresh, but its culinary versatility is extensive: it is frequently used in refreshing juices, jams, chutneys, and desserts, or added to savory dishes like rojak (a local fruit and vegetable salad) and spicy sambals. In some regions, the young, tender leaves are consumed raw as a leafy vegetable (ulam), and the young, acidic green fruits are pickled or used in sour soups and curries.

Nutritionally, the gandaria is a dense source of Vitamin C, dietary fiber, and beta-carotene, which gives the flesh its characteristic vibrant color. Its biochemical matrix is rich in specialized secondary metabolites, including various flavonoids, tannins, and polyphenolic compounds. These compounds contribute to its traditional use in folk medicine for treating inflammation, skin conditions, and digestive ailments. Modern pharmacological research has highlighted the antioxidant, antihyperglycemic, and antimicrobial potential of extracts derived from the fruit, leaves, and seeds, suggesting that the plant holds significant value for both culinary enjoyment and metabolic health.