Any of several chiefly North American deciduous trees of the genus Carya, having smooth or shaggy bark, compound leaves, and hard smooth stones or nuts, each containing an edible seed and surrounded by a husk that splits into four valves.

• 山核桃一种山核桃属的北美洲落叶乔木，树皮光滑或粗糙，复叶，果实或坚果坚硬光滑，中间有可食用的种子，种子外包了一层可裂成四片的外皮