Arkansas Tree Database

Scientific name:

Juglans Cinerea

Size:

40'-60' tall by as wide

Leaves:

alternate, odd-pinnately compound, 15"-30" long, with 11-17 sharply pointed leaflets, each 2"-5" long and finely toothed; yellow-green

Flowers:

yellow-green, inconspicous

Fruit:

greenish brown hairy husk, in clusters of 2-5, oblong and pointed instead of round like the black walnut, 2"-3" long, containing rough deeply grooved shell, with sweet, very oily, edible kernel

Fall Interest:

yellow; deciduous

Culture:

sun; intolerant of shade; rich, moist, well-drained soil; difficult to transplant because of deep taproot; trees are allelopathic, meaning they produce a chemical, juglone, that stunts or kills other plants growing nearby

Disease/Insect:

butternut canker, a usually fatal fungus

Use:

shade tree, native garden; wood not as valuable as black walnut because of softer wood and lighter color

Cultivars:

Notes:

bark light gray with broad flattened ridges; Native Americans ate the nuts and boiled the tree sap for syrup; native to Arkansas; rare