The red grape variety comes from Portugal. Synonyms are Camarate Tinto, Casculho, Castelão da Bairrada, Castelão de Nosso, Castelão do Nosso, Castelão Nacional, Castelão Nosso, Maroto, Morete, Moreto (synonym for many varieties), Moreto de Soure, Moreto do Douro, Mortágua, Mortagua de Vide Preta, Mureto, Negro Mouro, Preto Mouro and Vide Preta. According to DNA analyses carried out in 2013, this is a presumably natural cross between Cayetana Blanca x Alfrocheiro. However, this is based on only 20 DNA markers (see molecular genetics). In spite of apparently indicative synonyms or morphological similarities, it should not be confused with the variety Baga (Moreto) or its numerous siblings (see Cayetana Blanca). Whether there is a relationship to the French variety Camaralet de Lasseube (with synonym Camarate) is not known. The variety Camarate was a crossing partner in the new breeding of Água Santa. The early ripening vine is susceptible to powdery and downy mildew, Esca and grape rot. It produces dark, velvety red wines with a forest berry aroma. The variety is mainly cultivated in the Bairrada area, as well as Dão, Tejo, Torres Vedras. In 2010, 515 hectares of vineyard area were declared (statistics Kym Anderson).
Source: Kym Anderson: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012