Vigna vs rosid dicot genus

Vigna and rosid dicot genus both are nouns.

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

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

Vigna: genus of vines or erect herbs having trifoliate leaves and yellowish or purplish flowers; of warm or tropical regions; most species often placed in genus Phaseolus
rosid dicot genus: a genus of dicotyledonous plants

Vigna (noun)	rosid dicot genus (noun)
genus of vines or erect herbs having trifoliate leaves and yellowish or purplish flowers; of warm or tropical regions; most species often placed in genus Phaseolus	a genus of dicotyledonous plants