Sison vs rosid dicot genus

Sison and rosid dicot genus both are nouns.

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

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

Sison (noun)	rosid dicot genus (noun)
genus including stone parsley	a genus of dicotyledonous plants