celery root vs Apium graveolens rapaceum

celery root and Apium graveolens rapaceum both are nouns.

Word	Noun	Adjective	Verb	Adverb
celery root	Yes	No	No	No
Apium graveolens rapaceum	Yes	No	No	No

As nouns, celery root and Apium graveolens rapaceum are synonyms defined as:

celery root and Apium graveolens rapaceum: grown for its thickened edible aromatic root

Other synonyms of celery root include celeriac, knob celery, root celery, turnip-rooted celery.

celery root (noun)	Apium graveolens rapaceum (noun)
thickened edible aromatic root of a variety of celery plant	grown for its thickened edible aromatic root
grown for its thickened edible aromatic root