Brassica hirta vs white mustard

Brassica hirta and white mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brassica hirta	Yes	No	No	No
white mustard	Yes	No	No	No

As nouns, Brassica hirta and white mustard are synonyms defined as:

Brassica hirta and white mustard: Eurasian mustard cultivated for its pungent seeds; a source of table mustard and mustard oil

Other synonyms of Brassica hirta include Sinapis alba.

Brassica hirta (noun)	white mustard (noun)
Eurasian mustard cultivated for its pungent seeds; a source of table mustard and mustard oil	Eurasian mustard cultivated for its pungent seeds; a source of table mustard and mustard oil