Robinia vs rosid dicot genus

Robinia and rosid dicot genus both are nouns.

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

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

Robinia (noun)	rosid dicot genus (noun)
deciduous flowering trees and shrubs	a genus of dicotyledonous plants