field mustard vs Brassica kaber

field mustard and Brassica kaber both are nouns.

Word	Noun	Adjective	Verb	Adverb
field mustard	Yes	No	No	No
Brassica kaber	Yes	No	No	No

As nouns, field mustard and Brassica kaber are synonyms defined as:

field mustard and Brassica kaber: weedy Eurasian plant often a pest in grain fields

Other synonyms of field mustard include chadlock, charlock, Sinapis arvensis, wild mustard.

field mustard (noun)	Brassica kaber (noun)
weedy Eurasian plant often a pest in grain fields	weedy Eurasian plant often a pest in grain fields