Annona mucosa is a species of flowering plant in the custard-apple family, Annonaceae, that is native to tropical South America.

Nonetheless, the fruits are occasionally known by other names, including wild sugar apple and aratiku.

Biribá is a fast-growing, flood-tolerant, sun-loving tropical tree, with leaves up to 35 cm (14 in) long.

Its surface is covered with soft spines or protuberances which bruise and blacken with handling, giving it an unappealing appearance.

[3] Propagation is usually by seeds, which can remain viable for 2 years kept dry and in the dark, though air-layering and grafting are possible to preserve specific cultivars.