Pachira aquatica. Water chestnut, castan(i)o or fruta de mono.

This evergreen deciduous tree reaches growth heights of 4 to 20 meters outdoors. It develops a slightly thickened trunk base with smaller rootlets or board roots, which also serves as a water reservoir. The seeds are eaten raw or boiled, roasted or fried. They can also be ground into a flour and baked. Young flowers and leaves are used as vegetables. In medicine, it is used to treat liver damage.