crown vetch vs Coronilla varia

crown vetch and Coronilla varia both are nouns.

Word	Noun	Adjective	Verb	Adverb
crown vetch	Yes	No	No	No
Coronilla varia	Yes	No	No	No

As nouns, crown vetch and Coronilla varia are synonyms defined as:

crown vetch and Coronilla varia: European herb resembling vetch; naturalized in the eastern United States; having umbels of pink-and-white flowers and sharp-angled pods

Other synonyms of crown vetch include axseed.

crown vetch (noun)	Coronilla varia (noun)
European herb resembling vetch; naturalized in the eastern United States; having umbels of pink-and-white flowers and sharp-angled pods	European herb resembling vetch; naturalized in the eastern United States; having umbels of pink-and-white flowers and sharp-angled pods