Lythraceae vs order Thymelaeales

Lythraceae and order Thymelaeales both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lythraceae	Yes	No	No	No
order Thymelaeales	Yes	No	No	No

Lythraceae (noun)	order Thymelaeales (noun)
herbs and shrubs and small trees with pink or purple flowers	Myrtaceae, Combretaceae, Elaeagnaceae, Haloragidaceae, Melastomaceae, Lecythidaceae, Lythraceae, Rhizophoraceae, Onagraceae, Lecythidaceae, Punicaceae