Black walnut has up to 23 leaflets.
Leaflets are wider towards the middle whereas black walnut leaflets are wider towards the base.
In contrast to black walnut, the rachis usually bears a terminal leaflet. Bark is light gray with gray-white ridges. Nuts are elliptical, 4-ribbed, deeply corrugated, ridged, and enclosed by a hairy green, sticky, indehiscent husk. Click on photo to enlarge. All text and photographs are intended for educational purposes only and are not for commercial use in any form.