Aeonium vs plant genus

Aeonium and plant genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aeonium	Yes	No	No	No
plant genus	Yes	No	No	No

As nouns, plant genus is a hypernym of Aeonium; that is, plant genus is a word with a broader meaning than Aeonium:

Aeonium (noun)	plant genus (noun)
a genus of plants of the family Crassulaceae	a genus of plants