Chaenomeles japonica vs maule's quince

Chaenomeles japonica and maule's quince both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chaenomeles japonica	Yes	No	No	No
maule's quince	Yes	No	No	No

As nouns, Chaenomeles japonica and maule's quince are synonyms defined as:

Chaenomeles japonica and maule's quince: deciduous thorny shrub native to Japan having red blossoms

Other synonyms of Chaenomeles japonica include japonica.

Chaenomeles japonica (noun)	maule's quince (noun)
deciduous thorny shrub native to Japan having red blossoms	deciduous thorny shrub native to Japan having red blossoms