Lathyrus sativus vs grass pea

Lathyrus sativus and grass pea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lathyrus sativus	Yes	No	No	No
grass pea	Yes	No	No	No

As nouns, Lathyrus sativus and grass pea are synonyms defined as:

Lathyrus sativus and grass pea: European annual grown for forage; seeds used for food in India and for stock elsewhere

Other synonyms of Lathyrus sativus include Indian pea, khesari.

Lathyrus sativus (noun)	grass pea (noun)
European annual grown for forage; seeds used for food in India and for stock elsewhere	European annual grown for forage; seeds used for food in India and for stock elsewhere