cinchona tree vs chinchona

cinchona tree and chinchona both are nouns.

Word	Noun	Adjective	Verb	Adverb
cinchona tree	Yes	No	No	No
chinchona	Yes	No	No	No

As nouns, chinchona is a hypernym of cinchona tree; that is, chinchona is a word with a broader meaning than cinchona tree:

cinchona tree: small tree of Ecuador and Peru having very large glossy leaves and large panicles of fragrant pink flowers; cultivated for its medicinal bark
chinchona: any of several trees of the genus Cinchona

Other hypernyms of cinchona tree include cinchona.

cinchona tree (noun)	chinchona (noun)
small tree of Ecuador and Peru having very large glossy leaves and large panicles of fragrant pink flowers; cultivated for its medicinal bark	any of several trees of the genus Cinchona