Mercurialis annua vs herb mercury

Mercurialis annua and herb mercury both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mercurialis annua	Yes	No	No	No
herb mercury	Yes	No	No	No

As nouns, Mercurialis annua and herb mercury are synonyms defined as:

Mercurialis annua and herb mercury: Eurafrican annual naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic

Other synonyms of Mercurialis annua include boys-and-girls, herbs mercury.

Mercurialis annua (noun)	herb mercury (noun)
Eurafrican annual naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic	Eurafrican annual naturalized in America as a weed; formerly dried for use as a purgative, diuretic or antisyphilitic