mustard family vs genus Thysanocarpus

mustard family and genus Thysanocarpus both are nouns.

Word	Noun	Adjective	Verb	Adverb
mustard family	Yes	No	No	No
genus Thysanocarpus	Yes	No	No	No

mustard family (noun)	genus Thysanocarpus (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	small genus of herbs of upland regions of the Pacific coast of North America