Wine is usually made from one or more varieties of the European species Vitis vinifera, such as Pinot Noir, Chardonnay, or Merlot. When one of these varieties is used as the predominant grape (usually defined by law as a minimum of 75% or 85%), the result is a varietal, as opposed to a blended, wine. Blended wines are not considered inferior to varietal wines; in fact, some of the world's most valued and expensive wines, from regions like Bordeaux and the Rhone Valley, are blended from different grape varieties of the same vintage.