wild chervil vs cow parsley

wild chervil and cow parsley both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild chervil	Yes	No	No	No
cow parsley	Yes	No	No	No

As nouns, wild chervil and cow parsley are synonyms defined as:

wild chervil and cow parsley: coarse erect biennial Old World herb introduced as a weed in eastern North America

Other synonyms of wild chervil include Anthriscus sylvestris.

wild chervil (noun)	cow parsley (noun)
coarse erect biennial Old World herb introduced as a weed in eastern North America	coarse erect biennial Old World herb introduced as a weed in eastern North America