family Lamiaceae vs genus Physostegia

family Lamiaceae and genus Physostegia both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Lamiaceae	Yes	No	No	No
genus Physostegia	Yes	No	No	No

family Lamiaceae (noun)	genus Physostegia (noun)
a large family of aromatic herbs and shrubs having flowers resembling the lips of a mouth and four-lobed ovaries yielding four one-seeded nutlets and including mint, thyme, sage, rosemary	genus of North American perennial herbs