genus Ulex vs rosid dicot genus

genus Ulex and rosid dicot genus both are nouns.

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

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

genus Ulex (noun)	rosid dicot genus (noun)
genus of Eurasian spiny shrubs: gorse	a genus of dicotyledonous plants