genus Iris vs family Iridaceae

genus Iris and family Iridaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Iris	Yes	No	No	No
family Iridaceae	Yes	No	No	No

As nouns, family Iridaceae is a hypernym of genus Iris; that is, family Iridaceae is a word with a broader meaning than genus Iris:

genus Iris: large genus of perennials that develop from bulbs or rhizomes
family Iridaceae: large family of usually perennial geophytic herbs with rhizomes or corms or bulbs

Other hypernyms of genus Iris include liliid monocot genus, Iridaceae, iris family.

genus Iris (noun)	family Iridaceae (noun)
large genus of perennials that develop from bulbs or rhizomes	large family of usually perennial geophytic herbs with rhizomes or corms or bulbs