The red grape variety comes from France. Synonyms are Corsin, Blue Thun, Duresa, Dureza, Feunette, Fumette, Gros Béclan, Gros Nat, Gros Noir, Gros Plant, Pellorcin, Pelorsin, Pelossard, Peloursin Noir, Pourret, Pourrot, Thuner, Thuner vine and Tinta Roriz de Penajoia. The parentage (parenthood) is unknown. It must not be confused with the varieties Béclan, Bia Blanc, Dureza, Durif or Poulsard, even if synonyms or morphological similarities seem to indicate it. Peloursin was a cross between the two new varieties Durif and Joubertin. There is also a variety Peloursin Gris; nothing is known about a possible connection.
The medium maturing vine is susceptible to black rot and botrytis. It used to be grown in the Isère department and in Savoy in eastern France. Today it has almost disappeared; a small population exists under the name Gros Béclan in the Jura region. In the 1880s it was introduced to California, where it was cultivated in Sonoma County. In 2010, no stock was recorded under Peloursin (Kym Anderson).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)