Wine Glossary
Definition: Durif
[DUR-if] A red-wine grape grown in France's rhône region in the late nineteenth century and up to the middle of the twentieth century. Long-viewed as a rather common and minor variety, Durif is seldom found in French vineyards today. In the late 1990s, DNA analysis indicated that Durif was in fact a cross between Syrah and a variety called Peloursin. A vast majority of the variety called Petite Sirah in California is actually Durif.
Source: Answers.com; Wine Lover's Companion - R & S Herbst