common pea vs garden pea plant

common pea and garden pea plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
common pea	Yes	No	No	No
garden pea plant	Yes	No	No	No

As nouns, common pea and garden pea plant are synonyms defined as:

common pea and garden pea plant: plant producing peas usually eaten fresh rather than dried

Other synonyms of common pea include garden pea, Pisum sativum.

common pea (noun)	garden pea plant (noun)
plant producing peas usually eaten fresh rather than dried	plant producing peas usually eaten fresh rather than dried