What is "valdiguie"

Valdiguié is a red wine grape grown primarily in the Languedoc-Roussillon region of southern France, where it is generally known by the alias Gros Auxerrois. In California it has been known as Napa Gamay or Gamay 15. Until 1980 Napa Gamay was believed to be the Gamay of Beaujolais, but following genetic analysis the name 'Napa Gamay' has been banned from U.S. wine labels since January 1999. Confusingly, both the Pinot noir clone Gamay Beaujolais and 'Napa Gamay' could be labelled 'Gamay Beaujolais', a name banned on labels from April 2007.

Other synonyms include Valdiguer, Cahors, Jean-Pierrou at Sauzet, Quercy and Noir de Chartres.