Sinapis arvensis vs mustard

Sinapis arvensis and mustard both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sinapis arvensis	Yes	No	No	No
mustard	Yes	No	No	No

As nouns, mustard is a hypernym of Sinapis arvensis; that is, mustard is a word with a broader meaning than Sinapis arvensis:

Sinapis arvensis (noun)	mustard (noun)
weedy Eurasian plant often a pest in grain fields	pungent powder or paste prepared from ground mustard seeds
	leaves eaten as cooked greens
	any of several cruciferous plants of the genus Brassica