|Immature Bouea macrophylla in a basket|
The evergreen tree grows to heights of 25 meters. Its leaves are lanceolate to elliptic in shape (see: Leaf shape), and range from 13 to 45 cm (5 to 17 inches) long and from 5 to 7 cm (2 to 3 inches) wide.
The fruit (resembling a mango) are green in colour and mature to an orange/yellow, with the seed being pink. They grow to roughly 2 to 5 cm (0.7 to 1.9 inches) in diameter. The entire fruit, including its skin is edible. The fruit range from sweet to sour in flavour, and have a light smell of turpentine.
- Thailand : flowers in November to December, and fruit appears from April to May.
- Indonesia : flowers in June to November, and fruit appears from March to June.
Both the leaves and fruit from the tree can be eaten. The leaves can be eaten raw when they are still young, and can be used in salads. While the seed is edible, the endosperm is generally bitter. Fruit can be eaten raw, or made into dishes such as pickle, compote, or sambal. Unripened fruit can be used to make rojak and asinan.
Bouea macrophylla is commonly known in English as the "marian plum", "gandaria", and "plum mango". It is also known in Thai as ma praang (มะปราง) and ma-yong; in Indonesian as ramania and gandaria; in Burmese as mayan-thee (မရမ်းသီး); and in Vietnamese as thanh trà
In 2015 a major retailer introduced the fruit to the British public under the name plango, apparently a portmanteau word for "plum" and "mango". At the time the announcements noted the resemblance of the fruit to plums and mangoes, and some of the local press deliberately or naively announced that the fruit was a cross between a plum and a mango, which is not botanically plausible without genetic engineering, given that plums and mangoes are not even in the same family; they are in fact members of the Rosaceae and Anacardiaceae respectively.