Retama vs rosid dicot genus

Retama and rosid dicot genus both are nouns.

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

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

Retama: small genus of Mediterranean shrubs; often included in genus Genista
rosid dicot genus: a genus of dicotyledonous plants

Retama (noun)	rosid dicot genus (noun)
small genus of Mediterranean shrubs; often included in genus Genista	a genus of dicotyledonous plants