family Lamiaceae vs genus Lepechinia

family Lamiaceae and genus Lepechinia both are nouns.

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

family Lamiaceae (noun)	genus Lepechinia (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	a dicotyledonous genus of the family Labiatae