Belgian endive vs French endive

Belgian endive and French endive both are nouns.

Word	Noun	Adjective	Verb	Adverb
Belgian endive	Yes	No	No	No
French endive	Yes	No	No	No

As nouns, Belgian endive and French endive are synonyms defined as:

Belgian endive and French endive: young broad-leaved endive plant deprived of light to form a narrow whitish head

Other synonyms of Belgian endive include witloof.

Belgian endive (noun)	French endive (noun)
young broad-leaved endive plant deprived of light to form a narrow whitish head	young broad-leaved endive plant deprived of light to form a narrow whitish head