Although the name literally means "black Riesling," this variety is not related to the Riesling at all. In fakt, it is a mutation of the Spätburgunder (Pinot Noir) that ripens quite early.
The wines are deep in colour, but mostly not as complex as the wines made from Spätburgunder grapes. Frequently, the Schwarzriesling is referred to by its synonym, "Müllerrebe", and in France it is known as Pinot Meunier. Moreover, it is grown in Württemberg especially.