Prized worldwide for its high-quality wood and rich flavor of delicious nuts, the Persian walnut (Juglans regia) is an important economic crop. The Persian walnut is one of 22 species in the genus Juglans, which includes black and white walnuts and butternuts, grown across Europe, the Americas and Asia.
Click here for original story, Scientists crack origin of the Persian walnut
Source: Phys.org