family Orchidaceae vs genus Bletilla

family Orchidaceae and genus Bletilla both are nouns.

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

family Orchidaceae (noun)	genus Bletilla (noun)
enormous cosmopolitan family of perennial terrestrial or epiphytic plants with fleshy tubers or rootstocks and unusual flowers	small genus of chiefly east Asiatic hardy terrestrial orchids similar to genus Bletia