Dureza
Dureza is a dark-skinned grape variety from the Ardèche region in France. It has been used for production of red wine, but is hardly grown any more; it is not part of the list of the allowed grape varieties of any French wine appellation, and in 1988 only 1 hectare of Dureza remained, while there were 11 ha in the late 1970s.
Read more about Dureza.