vinifera vs Vitis vinifera

vinifera and Vitis vinifera both are nouns.

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

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

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

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

vinifera (noun)	Vitis vinifera (noun)
common European grape cultivated in many varieties; chief source of Old World wine and table grapes	common European grape cultivated in many varieties; chief source of Old World wine and table grapes