Aucuba vs rosid dicot genus

Aucuba and rosid dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aucuba	Yes	No	No	No
rosid dicot genus	Yes	No	No	No

As nouns, rosid dicot genus is a hypernym of Aucuba; that is, rosid dicot genus is a word with a broader meaning than Aucuba:

Aucuba (noun)	rosid dicot genus (noun)
hardy evergreen dioecious shrubs and small trees from Japan	a genus of dicotyledonous plants