The eastern black walnut is a rapidly growing large deciduous tree often reaching heights of 98–130 ft. It is native to forests of eastern North America and has grey-black deeply furrowed bark.
The Black walnut’s alternate leaves are 30–60 cm long, odd-pinnate, and have 15–23 leaflets. The tree’s male flowers are in drooping 8–10 cm long catkins. The female flowers are terminal and in clusters of two to five which in the fall ripen into a fruit with a brownish-green, semi-fleshy husk containing a brown, corrugated nut. The whole fruit, including the husk, falls in October.
The black walnut is a very useful tree because its beautiful, fine-grained, chocolate-brown wood is often used for making furniture, interior trim, and high-quality veneer and its nuts are used in all forms of cooking.