Colour mutation (also Licronaxu Nero Nuraxinieddu) of the grape variety Licronaxu Bianco = Brustiano Bianco; see there.
The white grape variety originates from Italy; it is found under different names in Corsica (France) and Sardinia (Italy). Synonyms are Arremungiau, Brustiano, Brustianu, Calitrano, Calitranu, Colitrano, Lacconargiu, Lacconarzu, Licronaxiu, Licronaxu Bianco and Remungiò....
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