Turbiana, new name for the Trebbiano di Lugana white variety native to Italy.

Both Trebbiano di Lugana and Trebbiano di Soave and had been considered biotypes of Verdicchio. However, for precision’s sake, Trebbiano di Lugana (Turbiana) is genetically different from Trebbiano di Soave and Verdicchio (admittedly, by a very small amount) but neither Trebbiano di Lugana (Turbiana) nor Trebbiano di Soave taste anything like Verdicchio. (After all, they have had centuries to adapt to a wholly different region.)

It is best to view these three grapes as different. It was to avoid confusion that the official name of Trebbiano di Lugana is now Turbiana. The Turbiana clones that are most often used are R2 (for table wine production), CSV (for late harvest and sparkling wine production), ERPT 155 and CVP 01-162 (for quality production with good ageing potential). Ian D’Agata points out that Turbiana clones should not be allowed in Verdicchio dei Castelli di Jesi as it is not Verdicchio (but I guess it could be added as an auxiliary grape like for example Chardonnay).