turnip-rooted celery vs knob celery

turnip-rooted celery and knob celery both are nouns.

Word	Noun	Adjective	Verb	Adverb
turnip-rooted celery	Yes	No	No	No
knob celery	Yes	No	No	No

As nouns, turnip-rooted celery and knob celery are synonyms defined as:

turnip-rooted celery and knob celery: grown for its thickened edible aromatic root

Other synonyms of turnip-rooted celery include Apium graveolens rapaceum, celeriac, celery root, root celery.

turnip-rooted celery (noun)	knob celery (noun)
grown for its thickened edible aromatic root	grown for its thickened edible aromatic root