Apiaceae vs Pastinaca

Apiaceae and Pastinaca both are nouns.

Word	Noun	Adjective	Verb	Adverb
Apiaceae	Yes	No	No	No
Pastinaca	Yes	No	No	No

As nouns, Pastinaca is a hyponym of Apiaceae; that is, Pastinaca is a word with a more specific, narrower meaning than Apiaceae:

Apiaceae: plants having flowers in umbels: parsley, carrot, anise, caraway, celery, dill
Pastinaca: a rosid dicot genus of the family Umbelliferae; includes parsnips

Other hyponyms of Apiaceae include genus Angelica, genus Pastinaca.

Apiaceae (noun)	Pastinaca (noun)
plants having flowers in umbels: parsley, carrot, anise, caraway, celery, dill	a rosid dicot genus of the family Umbelliferae; includes parsnips