vinifera vs vinifera grape

vinifera and vinifera grape both are nouns.

Word	Noun	Adjective	Verb	Adverb
vinifera	Yes	No	No	No
vinifera grape	Yes	No	No	No

As nouns, vinifera and vinifera grape are synonyms defined as:

vinifera and vinifera grape: common European grape cultivated in many varieties; chief source of Old World wine and table grapes

Other synonyms of vinifera include common grape vine, Vitis vinifera.

vinifera (noun)	vinifera grape (noun)
common European grape cultivated in many varieties; chief source of Old World wine and table grapes	grape from a cultivated variety of the common grape vine of Europe
	common European grape cultivated in many varieties; chief source of Old World wine and table grapes