Rovello bianco or Greco Muscio is a white Italian wine grape variety that is grown in the Campania region of southern Italy.
Despite the similarities in synonyms, DNA profiling in the early 21st century has shown that Rovello bianco has no known genetic relationship with the either the white or dark berried Greco grapes or any of the other Italian varieties (such as Maceratino, Grechetto, Pignoletto, Fortana and Erbaluce) that share Greco as a synonym.
But a collaboration between the Universities of Palermo and Naples Federico II along with the help of a local Taurasi wine grower lead to new plantings of Rovello bianco in 2003.
In the communes of Taurasi, Bonito and Mirabella Eclano centenarian old vine plantings of the variety still exist and are used in commercial wine production.
[1] According to Master of Wine Jancis Robinson, varietal examples of Rovello bianco (also known as Grecomusc) tend to have high levels of acidity with aroma notes of green citrus fruit and ash.