family Brassicaceae vs Thysanocarpus

family Brassicaceae and Thysanocarpus both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Brassicaceae	Yes	No	No	No
Thysanocarpus	Yes	No	No	No

family Brassicaceae (noun)	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