balsam of Peru vs tolu balsam

balsam of Peru and tolu balsam both are nouns.

Word	Noun	Adjective	Verb	Adverb
balsam of Peru	Yes	No	No	No
tolu balsam	Yes	No	No	No

As nouns, tolu balsam is a hypernym of balsam of Peru; that is, tolu balsam is a word with a broader meaning than balsam of Peru:

balsam of Peru: dark brown syrupy balsam from the Peruvian balsam tree used especially in dressing wounds and treating certain skin diseases
tolu balsam: aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups

Other hypernyms of balsam of Peru include balsam of tolu, tolu.

balsam of Peru (noun)	tolu balsam (noun)
dark brown syrupy balsam from the Peruvian balsam tree used especially in dressing wounds and treating certain skin diseases	aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups