Tempranillo grown to be considered the state's signature grape. In Oregon, the grape was introduced by Earl Jones of Abacela Vineyards and Winery, in the Umpqua Valley AVA. Their climate (hot during the summer day, and cool overnight) seems to be perfect for the Tempranillo grape. In Australia Tempranillo is grown in the McLaren Vale region, and also North East Victoria. Tempranillo has also been introduced by some wine producers in Thailand. The varietal is extensively grown in Argentina, Chile, and Mexico. In Washington state, Tempranillo was one of the varieties pioneered in the state by Red Willow Vineyard in the
Peloursin California vineyards that thought they were planted with Durif/Petite Sirah were found to be field blends that contain some plantings of Peloursin. In addition to being a parent of Durif, Peloursin was also crossed with Persan to create Joubertin. DNA testing also suggest a relationship between Peloursin and Bia blanc which share some morphological similarities but the exact nature of that relationship is not yet known. Plantings of Peloursin are often confused with its offspring Durif and this was particularly the case in California where many plantings of Petite Sirah/Durif were discovered to actually be Peloursin. In the Jura region,