grass vetch vs Lathyrus nissolia

grass vetch and Lathyrus nissolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
grass vetch	Yes	No	No	No
Lathyrus nissolia	Yes	No	No	No

As nouns, grass vetch and Lathyrus nissolia are synonyms defined as:

grass vetch and Lathyrus nissolia: annual European vetch with red flowers

Other synonyms of grass vetch include grass vetchling.

grass vetch (noun)	Lathyrus nissolia (noun)
annual European vetch with red flowers	annual European vetch with red flowers