family Orchidaceae vs genus Stelis

family Orchidaceae and genus Stelis both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Orchidaceae	Yes	No	No	No
genus Stelis	Yes	No	No	No

family Orchidaceae (noun)	genus Stelis (noun)
enormous cosmopolitan family of perennial terrestrial or epiphytic plants with fleshy tubers or rootstocks and unusual flowers	genus of small caespitose orchids of tropical America