Theobroma cacao wani nau'in ƙananan bishiyar bishiya ce da ke zaune a yankuna masu zafi na Tsakiya da Kudancin Amirka. Kalmar "Theobroma cacao" kuma tana iya nufin 'ya'yan itacen nan, waɗanda aka fi sani da wake koko. Ana amfani da waɗannan wake don samar da cakulan, foda koko, da sauran abubuwan da suka shafi cakulan. Sunan "Theobroma" ya fito ne daga kalmomin Helenanci "theo" ma'ana "allah" da "broma" ma'ana "abinci," don haka Theobroma cacao ana kiransa "abincin alloli."