stinkweed vs field pennycress

stinkweed and field pennycress both are nouns.

Word	Noun	Adjective	Verb	Adverb
stinkweed	Yes	No	No	No
field pennycress	Yes	No	No	No

As nouns, stinkweed and field pennycress are synonyms defined as:

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

Other synonyms of stinkweed include fanweed, French weed, mithridate mustard, penny grass, Thlaspi arvense.

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