orchid family vs genus Angraecum

orchid family and genus Angraecum both are nouns.

Word	Noun	Adjective	Verb	Adverb
orchid family	Yes	No	No	No
genus Angraecum	Yes	No	No	No

orchid family (noun)	genus Angraecum (noun)
enormous cosmopolitan family of perennial terrestrial or epiphytic plants with fleshy tubers or rootstocks and unusual flowers	genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque