common bean vs Phaseolus vulgaris

common bean and Phaseolus vulgaris both are nouns.

Word	Noun	Adjective	Verb	Adverb
common bean	Yes	No	No	No
Phaseolus vulgaris	Yes	No	No	No

As nouns, common bean and Phaseolus vulgaris are synonyms defined as:

common bean and Phaseolus vulgaris: the common annual twining or bushy bean plant grown for its edible seeds or pods

Other synonyms of common bean include common bean plant.

common bean (noun)	Phaseolus vulgaris (noun)
any of numerous beans eaten either fresh or dried	the common annual twining or bushy bean plant grown for its edible seeds or pods
the common annual twining or bushy bean plant grown for its edible seeds or pods