Yes, VINIFERA is a Scrabble word!

Letter values in Scrabble US: V 4, I 1, N 1, I 1, F 4, E 1, R 1, A 1.

Is it a valid word?

VINIFERA is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

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

Also: vinifera grape, common grape vine, vitis vinifera.