Conium vs rosid dicot genus

Conium and rosid dicot genus both are nouns.

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

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

Conium (noun)	rosid dicot genus (noun)
small genus of highly toxic biennials: hemlock	a genus of dicotyledonous plants