Cajanus vs rosid dicot genus

Cajanus and rosid dicot genus both are nouns.

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

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

Cajanus: erect densely branched shrubby perennials of Old World tropics; naturalized in other warm regions
rosid dicot genus: a genus of dicotyledonous plants

Cajanus (noun)	rosid dicot genus (noun)
erect densely branched shrubby perennials of Old World tropics; naturalized in other warm regions	a genus of dicotyledonous plants