Sercial

Sercial is the name of a white grape grown in Portugal, especially on the island of Madeira. It has given name to the dryest of the four classic varieties of Madeira fortified wine.

The grape is grown in diminishing quantities at the southern end of the island. After phylloxera devastated Madeira's vineyards, the grape became more common on the mainland, where it is known as Esgana or Esgana Cão. Its late ripening allows it to retain its characteristic acidity.