Foeniculum vs rosid dicot genus

Foeniculum and rosid dicot genus both are nouns.

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

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

Foeniculum: very small genus of aromatic European herbs with pinnately compound leaves and yellow flowers
rosid dicot genus: a genus of dicotyledonous plants

Foeniculum (noun)	rosid dicot genus (noun)
very small genus of aromatic European herbs with pinnately compound leaves and yellow flowers	a genus of dicotyledonous plants