Pimenta dioica vs allspice

Pimenta dioica and allspice both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pimenta dioica	Yes	No	No	No
allspice	Yes	No	No	No

As nouns, Pimenta dioica and allspice are synonyms defined as:

Pimenta dioica and allspice: aromatic West Indian tree that produces allspice berries

Other synonyms of Pimenta dioica include allspice tree, pimento tree.

Pimenta dioica (noun)	allspice (noun)
aromatic West Indian tree that produces allspice berries	ground dried berrylike fruit of a West Indian allspice tree; suggesting combined flavors of cinnamon and nutmeg and cloves
	aromatic West Indian tree that produces allspice berries
	deciduous shrubs having aromatic bark; eastern China; southwestern and eastern United States