It is not the same grape as the Torrontés found in Spain. Torrontés Riojano is indigenous of Argentina. It is believed to be a crossing between a dry grape called Mission (also known as Criolla Chica) and a sweet grape, Muscat of Alexandria. Although this grape is dry, it has the distinctive slightly sweet bouquet of the Muscat of Alexandria, expressing most of the time apricot, jasmine and muscat aromas.
It exist 3 different type of Torrontés in Argentina, Torrontés Riojano being the most commonly planted.