Labiatae vs genus Leonotis

Labiatae and genus Leonotis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Labiatae	Yes	No	No	No
genus Leonotis	Yes	No	No	No

Labiatae (noun)	genus Leonotis (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	small genus of tropical herbs and subshrubs of South Africa