Japan allspice vs Japanese allspice

Japan allspice and Japanese allspice both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japan allspice	Yes	No	No	No
Japanese allspice	Yes	No	No	No

As nouns, Japan allspice and Japanese allspice are synonyms defined as:

Japan allspice and Japanese allspice: deciduous Japanese shrub cultivated for its fragrant yellow flowers

Other synonyms of Japan allspice include Chimonanthus praecox, winter sweet.

Japan allspice (noun)	Japanese allspice (noun)
deciduous Japanese shrub cultivated for its fragrant yellow flowers	deciduous Japanese shrub cultivated for its fragrant yellow flowers