Brassica juncea vs chinese mustard

Brassica juncea and chinese mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brassica juncea	Yes	No	No	No
chinese mustard	Yes	No	No	No

As nouns, Brassica juncea and chinese mustard are synonyms defined as:

Other synonyms of Brassica juncea include gai choi, indian mustard, leaf mustard.

Brassica juncea (noun)	chinese mustard (noun)
Asiatic mustard used as a potherb	Asiatic mustard used as a potherb