quince bush vs Cydonia oblonga

quince bush and Cydonia oblonga both are nouns.

Word	Noun	Adjective	Verb	Adverb
quince bush	Yes	No	No	No
Cydonia oblonga	Yes	No	No	No

As nouns, quince bush and Cydonia oblonga are synonyms defined as:

quince bush and Cydonia oblonga: small Asian tree with pinkish flowers and pear-shaped fruit; widely cultivated

Other synonyms of quince bush include quince.

quince bush (noun)	Cydonia oblonga (noun)
small Asian tree with pinkish flowers and pear-shaped fruit; widely cultivated	small Asian tree with pinkish flowers and pear-shaped fruit; widely cultivated