Blue grape, local of Valla d'Asota, but may also be found in Piemonte. Used as blendings-component where it adds good alcoholic level. Not mentioned in any appellation.
With the exception of a few plants found in the towns of Donnas and Issogne, Crovassa disappeared from the Aosta Valley vineyards. It is difficult to give this vine a reliable source Aosta Valley, as in the past several authors have indicated a more abundant distribution in vineyards adjacent to the Valley Canavese d'Aosta.
Currently there are no vineyards in Crovassa cultivation.
Viticulture and winemaking
The grapes vinified Crovassa give a wine with a light ruby red, little fragrance, taste aspretto subtle and modest alcohol.