earthnut pea vs heath pea

earthnut pea and heath pea both are nouns.

Word	Noun	Adjective	Verb	Adverb
earthnut pea	Yes	No	No	No
heath pea	Yes	No	No	No

As nouns, earthnut pea and heath pea are synonyms defined as:

earthnut pea and heath pea: European herb bearing small tubers used for food and in Scotland to flavor whiskey

Other synonyms of earthnut pea include earth-nut pea, Lathyrus tuberosus, tuberous vetch.

earthnut pea (noun)	heath pea (noun)
European herb bearing small tubers used for food and in Scotland to flavor whiskey	European herb bearing small tubers used for food and in Scotland to flavor whiskey