Baccaurea racemosa, widely known as the menteng or kepundung, is a tropical fruit tree in the family Phyllanthaceae. It is native to the primary rainforests of Southeast Asia, particularly Indonesia, Malaysia, and parts of Thailand. The genus name Baccaurea is derived from the Latin bacca ("berry") and aurea ("golden"), reflecting the fruit's often bright, yellowish coloration when ripe. The species epithet racemosa refers to the plant's characteristic raceme inflorescence, where the fruits grow in dense, grape-like clusters directly along the main trunk and primary branches—a botanical phenomenon known as cauliflory. Historically, this tree has been a crucial component of traditional Indonesian village agroforestry (pekarangan), where it serves both as a reliable source of seasonal fruit and as an important shade tree.

The tree itself is a slow-growing evergreen that can reach heights of 10 to 20 meters, featuring a dense, spreading crown of leathery, dark green, glossy leaves. The menteng is most notable for its striking fruiting habit; the trees produce long, drooping, string-like clusters of rounded, berry-like fruits that can contain dozens of individual specimens per stalk. These fruits are initially green and transition to a vibrant yellow, brownish-yellow, or sometimes reddish hue upon full maturity. The fruit consists of a thin, tough skin (pericarp) that protects 2 to 4 segments of translucent, succulent, and juicy white or pinkish-white aril, which surrounds a small, flattened seed. The plant thrives in the humid, low-altitude tropical environments of the Malay Archipelago, often found in deep, well-draining, acidic soils.

The fruit of Baccaurea racemosa is beloved in regional Southeast Asian gastronomy for its balanced flavor profile, which typically ranges from pleasantly sweet to moderately tart, often with an acidic tang that mimics a hybrid of a mangosteen and a citrus fruit. In local Indonesian markets, menteng is frequently consumed fresh as a refreshing table fruit. Beyond raw consumption, the arils are a versatile ingredient in regional cooking: they are used to add a bright, acidic depth to traditional spicy sambals, incorporated into local rujak (fruit salads with spicy palm sugar dressing), or processed into syrups and jellies. Because the fruit is quite perishable, it is traditionally sold in its original clusters in local markets to maintain its freshness before consumption.

Nutritionally, menteng is a significant source of dietary fiber, Vitamin C, and various mineral salts. Its biochemical matrix is defined by a high concentration of specialized phenolic compounds, including flavonoids and tannins, which contribute to both its astringency and its potent antioxidant capacity. Traditional herbal medicine in Java and Sumatra has long utilized the bark and leaves of the tree as an anti-inflammatory and as a topical remedy for skin irritation. Modern pharmacological research into the genus Baccaurea has begun to highlight the fruit's bioactive potential, focusing on its ability to support metabolic health and its high radical-scavenging activity.