The white grape variety (also King) is an open-pollinated seedling of the American vine Clinton. Thus, at least genes of Vitis riparia x Vitis labrusca are included. The hybrid was selected in the USA in 1857 by the private breeder W. King.No stocks were reported in 2016 (statistics Kym Anderson).
The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.
Andreas Essl
Autor, Modena