Bulnesia vs rosid dicot genus

Bulnesia and rosid dicot genus both are nouns.

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

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

Bulnesia (noun)	rosid dicot genus (noun)
palo santo	a genus of dicotyledonous plants