The next largest plantings are dedicated to the Torrontés Riojano variety followed by Muscat of Alexandria, Chardonnay, Torrontés Sanjuanino (the sub-variety of Torrontés that is believed to have originated in the San Juan province) and Sauvignon blanc. Other white grape varieties found in Argentina include Chenin blanc, Pinot gris, Riesling, Sauvignonasse, Semillon, Ugni blanc and Viognier.[1]