Syrah being considered the superior version, giving wines higher in phenolics. As a general rule, most Australian and South African wines are labeled "Shiraz", and most European wines (from such regions where varietal labeling is practiced) are labeled "Syrah". In other countries, practices vary and winemakers (or wine marketers) sometimes choose either "Syrah" or "Shiraz" to signify a stylistic difference in the wine they have made. "Syrah"-labelled wines are sometimes thought to be more similar to classic Northern Rhône reds; presumably more elegant, tannic, smoke-flavoured and restrained with respect to their fruit component. "Shiraz"-labelled wines, on the other hand, would then
Persan (grape) wine region. In 1902, L. Rougier, an ampelographer writing for Pierre Viala and Victor Vermorel's catalog of grape varieties, determined that the two were separate varieties with Étraire de la Dui likely being an offspring of Persan. Over a 100 years later, DNA testing conducted by Swiss geneticist José Vouillamoz "strongly suggested" that there was, indeed, a parent-offspring link between Persan and Étraire de la Dui but in what direction (i.e. who is the parent and who is the offspring) is not yet known. Other varieties that Persan has been confused with over the years include Mondeuse noire, Syrah and