The red grape variety originates from Portugal. Synonyms are Azal, Azal Espanhol, Bical, Bical Tinto, Mortagua, Mortagua Preto, Touriga, Touriga Fina, Tourigo (namesake municipality), Tourigo Antiguo, Tourigo do Dão, Tourigo Nacional, Touriva, Turiga (Portugal); Touriga National (Romania); Carabuñera (Spain).

The parentage is unknown. It should not be confused with the Amaral (Azal Tinto) variety or the other Touriga varieties due to some of the same synonyms and morphological similarities. There is no connection with the white variety Bical. Direct descendants through presumably natural cross-breeding are Tinta Aguiar, Tinta da Melra, Touriga Fêmea and Touriga Franca. It was also a crossing partner in the new Tarrango variety.
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