common ginger vs Canton ginger

common ginger and Canton ginger both are nouns.

Word	Noun	Adjective	Verb	Adverb
common ginger	Yes	No	No	No
Canton ginger	Yes	No	No	No

As nouns, common ginger and Canton ginger are synonyms defined as:

common ginger and Canton ginger: tropical Asian plant widely cultivated for its pungent root; source of gingerroot and powdered ginger

Other synonyms of common ginger include stem ginger, Zingiber officinale.

common ginger (noun)	Canton ginger (noun)
tropical Asian plant widely cultivated for its pungent root; source of gingerroot and powdered ginger	tropical Asian plant widely cultivated for its pungent root; source of gingerroot and powdered ginger