Cassia vs rosid dicot genus

Cassia and rosid dicot genus both are nouns.

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

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

Cassia: some genus Cassia species often classified as members of the genus Senna or genus Chamaecrista
rosid dicot genus: a genus of dicotyledonous plants

Cassia (noun)	rosid dicot genus (noun)
some genus Cassia species often classified as members of the genus Senna or genus Chamaecrista	a genus of dicotyledonous plants