The
Juglandaceae are a family, known as the walnut family, of
trees, or sometimes shrubs, in the order
Fagales. Various members of this family are native to the
Americas,
Eurasia, and
Southeast Asia. Members of the walnut family have large, aromatic leaves that are usually alternate, but opposite in
Alfaroa and
Oreomunnea. The
leaves are pinnately compound or ternate, and usually 20–100 cm long.