The white grape variety comes from Italy. Synonyms are Greco Bianco di Cirò, Greco del Cirotano, Greco di Cirò, Guardavalle di Passuli, Montonico di Rogliano, Uva da Passito, Uva Greca and Vardavalli. It must not be confused with the Greco, Greco Bianco or Mantonico Bianco varieties, despite the fact that the names are apparently synonymous or morphologically or name similar. In DNA analyses carried out in 2004 and 2008, the varieties previously considered to be independent above turned out to be identical.
The late maturing vine produces slightly astringent white wines with a nutty aroma. It is named after the town of the same name in the province of Catanzaro on the Ionian coast. Today, the variety is cultivated under the name Guardavalle mainly in the province of Reggio Calabria in the region of Calabria. There it is registered in the DOC wine Bivongi. However, in much larger quantities, it is widespread in Calabria under the name Greco Bianco di Cirò. In 2010 a vineyard area of 33 hectares was designated (Kym Anderson).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012