leaf mustard vs chinese mustard

leaf mustard and chinese mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
leaf mustard	Yes	No	No	No
chinese mustard	Yes	No	No	No

As nouns, leaf mustard and chinese mustard are synonyms defined as:

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

leaf mustard (noun)	chinese mustard (noun)
leaves eaten as cooked greens	Asiatic mustard used as a potherb
Asiatic mustard used as a potherb