Verdelho

Verdello is a white Italian wine grape variety that is grown mostly in the Umbria region of central Italy where it plays a minor role as a blending grape in several Denominazione di Origine Controllata wines, including Orvieto. Despite similarities in their names, the Italian Verdello grape has no close genetic relationship with the Portuguese wine grape Verdelho that is grown on the islands of Madeira and Azores. However, like the Portuguese grape, Verdello's name likely comes from the dark green color of its berries before veraison. Ampelographers believe that Verdello is indigenous to the Umbria region where it has been recorded growing in the Orvieto region since at least 1894. The grape's name is likely derived from the green color of the hard, immature berries throughout the growing season before the period of veraison. Despite the similarities in their names, Verdello has no known relationship with the Portuguese wine grape Verdelho. In Spain, the grape called Verdello is in fact the Portuguese Verdelho.

Source: Wikipedia