mistletoe family vs genus Viscum

mistletoe family and genus Viscum both are nouns.

Word	Noun	Adjective	Verb	Adverb
mistletoe family	Yes	No	No	No
genus Viscum	Yes	No	No	No

mistletoe family (noun)	genus Viscum (noun)
in some classification includes Viscaceae: parasitic or hemiparasitic shrublets or shrubs or small trees of tropical and temperate regions; attach to hosts by haustoria	type genus of the Viscaceae: Old World evergreen shrubs parasitic on many trees including oaks but especially apple trees, poplars, aspens and cottonwoods
in some classifications considered a subfamily of Loranthaceae