heath pea vs Lathyrus tuberosus

heath pea and Lathyrus tuberosus both are nouns.

Word	Noun	Adjective	Verb	Adverb
heath pea	Yes	No	No	No
Lathyrus tuberosus	Yes	No	No	No

As nouns, heath pea and Lathyrus tuberosus are synonyms defined as:

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

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

heath pea (noun)	Lathyrus tuberosus (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