rockcress vs Sisymbrium barbarea

rockcress and Sisymbrium barbarea both are nouns.

Word	Noun	Adjective	Verb	Adverb
rockcress	Yes	No	No	No
Sisymbrium barbarea	Yes	No	No	No

As nouns, rockcress and Sisymbrium barbarea are synonyms defined as:

rockcress and Sisymbrium barbarea: noxious cress with yellow flowers; sometimes placed in genus Sisymbrium

Other synonyms of rockcress include Barbarea vulgaris, rocket cress, yellow rocket.

rockcress (noun)	Sisymbrium barbarea (noun)
any of several rock-loving cresses of the genus Arabis	noxious cress with yellow flowers; sometimes placed in genus Sisymbrium
noxious cress with yellow flowers; sometimes placed in genus Sisymbrium