Juglans is a genus of trees and shrubs commonly known as walnuts. This genus includes several species, such as the English walnut (Juglans regia) and the Black walnut (Juglans nigra). These trees are valued for their edible nuts and high-quality wood, which is often used in furniture and cabinetry. Walnut trees typically thrive in temperate regions and can grow quite large, reaching heights of up to 100 feet. They produce distinctive, round fruits that contain the nuts, which are rich in healthy fats, proteins, and antioxidants, making them a popular choice for both culinary and health purposes.