Grossulariaceae vs plant family

Grossulariaceae and plant family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grossulariaceae	Yes	No	No	No
plant family	Yes	No	No	No

As nouns, plant family is a hypernym of Grossulariaceae; that is, plant family is a word with a broader meaning than Grossulariaceae:

Grossulariaceae: in some classifications considered a part of the family Saxifragaceae: plants whose fruit is a berry
plant family: a family of plants

Grossulariaceae (noun)	plant family (noun)
in some classifications considered a part of the family Saxifragaceae: plants whose fruit is a berry	a family of plants