garden pea vs garden pea plant

garden pea and garden pea plant both are nouns.

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

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

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

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

garden pea (noun)	garden pea plant (noun)
fresh pea	plant producing peas usually eaten fresh rather than dried
plant producing peas usually eaten fresh rather than dried
the flattened to cylindric inflated multi-seeded fruit of the common pea plant