The red grape variety originates from the border region Italy/Switzerland. Synonyms are Orion Gris, Oriou, Oriou Curare, Oriou Lombard, Oriou Petit Rouge, Oriou Picciou, Oriou Voirard, Picciou Rouge and Picciou Rouzo. The Oriou synonyms are different types of games. In spite of the fact that they seem to be synonyms, they should not be confused with the variety Cornalin (Humagne Rouge). It is one of the oldest and most widespread varieties in the Aosta Valley. Parenthood is unknown. A presumed origin in Burgundy or a presumed cross between local variety x wild vine is unlikely from a genetic and morphological point of view. In Switzerland, the variety is counted in the Old Growths grape variety group. According to DNA analyses carried out in 2003, the Rouge du Pays (Cornalin du Valais) variety originates from a presumed natural cross between Petit Rouge x Mayolet. This late ripening variety produces dark purple, spicy red wines with soft tannins and accentuated acidity and currant aromas. It is the main ingredient in the DOC red wines Valle d'Aosta Chambave Rosso, Valle d'Aosta Enfer d'Arvier and Valle d'Aosta Torrette. In 2016, a total of 68 hectares of vineyard area were designated with a downward trend (Kym Anderson statistics).