, Juglans regia emanates from Circassia in the Caucasus and is the original Walnut of Europe. This tree was prized for its walnuts and was planted all throughout Europe and England. Color variations are due to the varied climates and soil conditions in which the trees grows. Juglans walnut is translated to "White Walnut" so finding dark striping and marble cake figure is the rare exception. This wood has been prized for centuries for firearm stocks and fine furniture. It works and finishes much like American Black Walnut.