Cacao is or the cocoa plant, a small evergreen tree in the family Sterculiaceae, native to the deep tropical region of the Americas
That would be the cocoa bean tree.
Chocolate
The top producers of cacao or cocoa beans are as follows:The Republic of Côte d'IvoireGhanaIndonesiaCameroonNigeriaBrazilEcuadorDominican RepublicMalaysia
The Botanical name for the Cacao tree is "Theobroma Cacao". This name was given in 1753 by the Swedish Botanist, Carolus Linnaeus.