Peruvian bark vs cinchona bark

Peruvian bark and cinchona bark both are nouns.

Word	Noun	Adjective	Verb	Adverb
Peruvian bark	Yes	No	No	No
cinchona bark	Yes	No	No	No

As nouns, Peruvian bark and cinchona bark are synonyms defined as:

Peruvian bark and cinchona bark: medicinal bark of cinchona trees; source of quinine and quinidine

Other synonyms of Peruvian bark include cinchona, Jesuit's bark.

Peruvian bark (noun)	cinchona bark (noun)
medicinal bark of cinchona trees; source of quinine and quinidine	medicinal bark of cinchona trees; source of quinine and quinidine