Thlaspi arvense vs French weed

Thlaspi arvense and French weed both are nouns.

Word	Noun	Adjective	Verb	Adverb
Thlaspi arvense	Yes	No	No	No
French weed	Yes	No	No	No

As nouns, Thlaspi arvense and French weed are synonyms defined as:

Thlaspi arvense and French weed: foetid Eurasian weed having round flat pods; naturalized throughout North America

Other synonyms of Thlaspi arvense include fanweed, field pennycress, mithridate mustard, penny grass, stinkweed.

Thlaspi arvense (noun)	French weed (noun)
foetid Eurasian weed having round flat pods; naturalized throughout North America	foetid Eurasian weed having round flat pods; naturalized throughout North America