The white grape variety comes from the border region of Vinho Verde in Portugal and Galicia in Spain. Synonyms are Alvarinho, Caíño Branco, Cainho de Moreira and Caíño de Moreira. The variety was first mentioned in 1772. DNA analyses carried out in 2011 have shown that the variety originated from a (most likely natural) cross between Caíño Bravo(Amaral) x Albariño(Alvarinho). This is why there has been frequent confusion between these three varieties in the past. The late ripening vine is susceptible to powdery and downy mildew. It produces acidic, alcohol-rich white wines with mineral clay, which are mostly used in blends with the Albariño variety. The vine is authorised in Galicia in the two DO areas of Monterrei and Rías Baixas. In 2010, it occupied 121 hectares of vineyards in Spain.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012