Tolmiea vs rosid dicot genus

Tolmiea and rosid dicot genus both are nouns.

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

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

Tolmiea (noun)	rosid dicot genus (noun)
one species: pickaback plant	a genus of dicotyledonous plants