field pennycress vs mithridate mustard

field pennycress and mithridate mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
field pennycress	Yes	No	No	No
mithridate mustard	Yes	No	No	No

As nouns, field pennycress and mithridate mustard are synonyms defined as:

field pennycress and mithridate mustard: foetid Eurasian weed having round flat pods; naturalized throughout North America

Other synonyms of field pennycress include fanweed, French weed, penny grass, stinkweed, Thlaspi arvense.

field pennycress (noun)	mithridate mustard (noun)
foetid Eurasian weed having round flat pods; naturalized throughout North America	foetid Eurasian weed having round flat pods; naturalized throughout North America