核桃是核桃树的果实,是我国山区的土特产。核桃树是一种落叶乔木,高达6～8丈,在我国多数是孤立木,树冠很大,果实是核果,外被綠色肉質的假果皮。核桃树对气候、土壤的适应范围比較广,耐寒、抗旱能力也相当强,主要分布在北方的河北、山西、山东、陝西、河南、甘肃,西南的云南、四川、貴州,中南几省也有少量分布。 Walnut is the fruit of walnut trees and is a native product of mountainous areas in China. Walnut tree is a deciduous tree, up to 6 to 8 feet. Most of it is isolated wood in China. The crown is large. The fruit is a stone fruit and the outer skin is a fake flesh of green flesh. Walnut trees have a wide range of adaptability to climate and soil, and they have strong cold-resistance and drought resistance. They are mainly distributed in northern Hebei, Shanxi, Shandong, Shaanxi, Henan, Gansu and southwestern Yunnan, Sichuan, and Guizhou. There are also a few in central and southern provinces. distributed.