Plants in the mainly temperate and subtropical Walnut Family (Juglandaceae) are monoecious or rarely dioecious trees or rarely shrubs with gray or brownish bark, aromatic, usually alternate, pinnately compound leaves, unisexual flowers, and fruit in the form of a large, drupelike nut containing fleshy, oily, lobed cotyledons (nut meat).

Listed below are some of the southeastern Arizona plants in this family.