The white grape comes from Italy, Synonyms are Bertolino, Bertoulin, Caria l'Aso, Lardera, Lardera Bianca, Lardera delle Langhe, Martinella, Peigin and Peisin. It may, despite seemingly suggestive synonyms or morphological Similarities not with the variety Carica l'Asino be confused. According to DNA analysis it is not a color mutation the red one Barbera but a separate strain. The name was due to the similar grape and berry form. The variety was first mentioned in writing in 1825 by the naturalist Giuseppe Acerbi (1773-1846). The medium-maturing, high-yielding vine yields acidic white wines. She is in the Piedmont mainly grown in the provinces of Acqui, Alessandria, Asti and Cuneo. The variety is in DOC wine Colli Tortonesi authorized. The acreage in 2010 was 181 hectares.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)