stem ginger vs common ginger

stem ginger and common ginger both are nouns.

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

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

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

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

stem ginger (noun)	common 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