maule's quince vs Chaenomeles japonica

maule's quince and Chaenomeles japonica both are nouns.

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

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

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

Other synonyms of maule's quince include japonica.

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