From Wikipedia:
Negroamaro, also Negro amaro, is a red wine grape variety native to southern Italy. It is grown almost exclusively in Puglia and particularly in Salento, the peninsula which can be visualised as the “heel” of Italy. The grape can indeed produce wines very deep in color. Wines made from Negroamaro tend to be very rustic in character, combining perfume with an earthy bitterness. The grape produces some of the best red wines of Puglia, particularly when blended with the highly scented Malvasia Nera, as in the case of Salice Salentino.