The red grape variety comes from Italy, Synonyms are Bottascera, Botascere, Geschlafene, Slept, Martinenca, Patriarca, Rossara Gentile, Ross Ciàr, Rossera, Schiava, Schwarzwälsche and Varenzasca. The name refers to the possible place of origin Trentino, as well as on the reddish berries. Despite apparently suggesting synonyms or morphological No similarities with the varieties Schiava Lombarda. Rossara or Rossola Nera be confused. Also to Schiava varieties (Vernatsch) there is no connection. According to in 2013 DNA analysis Rossara Trentina is one of the many descendants of Gouais Blanc (White Heunisch); the second parent is unknown. There is a genetic relationship to the variety Sgavetta,
The late-ripening, productive vine is resistant to the wrong people mildew but susceptible to powdery mildew, Botrytis and Flavescence doree, It produces fresh, perfumed red wines with apple-like acidity. The variety is mainly grown in the Rotaliano plain in Trentino, where it is often used Negrara Trentina and Teroldego is blended. In Piedmont it is cultivated under the name Varenzasca. The area under cultivation in 2010 was only 8 hectares, with a steep downward trend (ten years earlier it was 29 hectares).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)