Crataegus vs rosid dicot genus

Crataegus and rosid dicot genus both are nouns.

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

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

Crataegus (noun)	rosid dicot genus (noun)
thorny shrubs and small trees: hawthorn; thorn; thorn apple	a genus of dicotyledonous plants