Garcinia atroviridis

The tree grows to a height of more than 20 m and has a long trunk, smooth grey bark and drooping branches. The leaves are dark green, shiny, long and narrow with a pointed tip and upturned edges. The species is dioecious with male and female flowers on separate trees. The flowers are dark red. The round fruits are borne singly on twig ends about 7–10 cm in diameter. The ripe fruits are bright orange yellow, which are sliced, dried and used in curries or stewed in plenty of sugar to be eaten.

The fruit contains citric acid, tartaric acid, malic acid and ascorbic acid, hydroxycitric acid, and flavonoids.^[4]

Ripe asam fruit is bright-yellow orange. Sun-dried slices of the fruit, locally known as "asam keping", are commercially available and are popularly used as a souring agent for curries and soups.^[5]

Asam gelugor is a perennial fruit tree native to the tropical climate in Malaysia. The trees can also be found in other parts of South East Asia, particularly in Thailand where demand for the asam fruit is increasing.

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  Ripe fruits with a coin for scale
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  Stages of ripeness
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  Cross sections and pulp
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  Dried flesh ready for culinary use

• Garcinia binucao, a related species used similarly in the Philippines
• Garcinia dulcis
• Garcinia gummi-gutta
• Garcinia morella