Epilobium vs rosid dicot genus

Epilobium and rosid dicot genus both are nouns.

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

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

Epilobium: large widely distributed genus of herbs and subshrubs of especially western North America and Arctic areas
rosid dicot genus: a genus of dicotyledonous plants

Epilobium (noun)	rosid dicot genus (noun)
large widely distributed genus of herbs and subshrubs of especially western North America and Arctic areas	a genus of dicotyledonous plants