The leaf is composed of 5 to 9 leaflets, each reaching a
length of 2 to 5 inches.
The margins of the English Walnut leaflets are entire
English walnut and Black walnut differ in the number of
leaflets, the shape of the leaflets, and the leaflet margin.
black walnut leaves have a greater number of leaflets
(15-23) than English walnuts (5-9). English walnut leaflets
have more oval shaped leaves while black walnut leaves are
generally smaller and narrower in shape. Black Walnut
leaflets have toothed margins while English walnut leaflet
margins are entire.
English walnut and Butternut have the same general leaf
shape. They differ in the number of leaflets, butternut has
11-19 leaflets, while English walnut has only 5-9. Also,
butternut has a toothed margin, while the leaf margin of the
English walnut is entire.