Pastinaca vs rosid dicot genus

Pastinaca and rosid dicot genus both are nouns.

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

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

Pastinaca: a rosid dicot genus of the family Umbelliferae; includes parsnips
rosid dicot genus: a genus of dicotyledonous plants

Other hypernyms of Pastinaca include Apiaceae, carrot family, family Apiaceae, family Umbelliferae, Umbelliferae.

Pastinaca (noun)	rosid dicot genus (noun)
a rosid dicot genus of the family Umbelliferae; includes parsnips	a genus of dicotyledonous plants