chocolate tree vs Theobroma cacao

chocolate tree and Theobroma cacao both are nouns.

Word	Noun	Adjective	Verb	Adverb
chocolate tree	Yes	No	No	No
Theobroma cacao	Yes	No	No	No

As nouns, chocolate tree and Theobroma cacao are synonyms defined as:

chocolate tree and Theobroma cacao: tropical American tree producing cacao beans

Other synonyms of chocolate tree include cacao, cacao tree.

chocolate tree (noun)	Theobroma cacao (noun)
tropical American tree producing cacao beans	tropical American tree producing cacao beans