The white grape variety (also GM 318-57) is an interspecific new variety between Riesling x Chancellor. It contains genes from Vitis labrusca, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1957 at the Geisenheim Research Institute (Rheingau). The early maturing vine is resistant to powdery mildew, but susceptible to downy mildew. It produces flowery white wines with a subtle Foxton, which is why it did not catch on in Germany. In 2010, 106 hectares were recorded in Canada (statistics Kym Anderson). A small stock is also said to exist in the US state of New York.