Which tree produces the Amazonian fruit known as cupuaçu?

Theobroma grandiflorum produces the Amazonian fruit known as cupuaçu. This tropical tree is related to the cacao tree and is native to the eastern Amazon region, especially Brazil.

Cupuaçu fruit has a thick, brown, fuzzy rind and aromatic white pulp with a flavour often described as a mixture of chocolate, pineapple and pear. The pulp is used in juices, sweets, ice cream and other products, while the seeds can be processed into cupulate, a cacao-like food.

The name is sometimes confused with guaraná, another important Amazonian crop, but guaraná is a climbing plant in a different genus. Cupuaçu is also distinct from cacao: both belong to Theobroma, yet they are separate species with different fruits and traditional uses.