Find out about common North American trees with pinnate leaves. Learn how to identify hickory, ash, walnut, black locust, and pecan using this guide.

In a black walnut, the bark is furrowed and dark in color (it is lighter in butternut). The leaf scars along twigs look like an upside-down shamrock with five or seven bundle scars.

The black walnut tree (Juglans nigra) is well-loved for its beauty and the walnuts it grows. However, the roots of this tree ...

In this episode of ID That Tree, Recep Yildiz a FNR graduate student shares his expertise on how to ID Persian walnut or sometimes called common walnut or English walnut. It is not native to Indiana ...

Tree-of-heaven’s leaf, comprised of many leaflets, can be up to 2½ feet long, while black walnut’s leaf may reach a maximum of 2 feet. Tree-of-heaven leaflets have what we call “glandular teeth” (See ...

Aerate the soil near by the black walnut tree and amend the garden beds with organic matters like rotten manure, composted leaves to enhance soil microbes that can help detoxify juglone. 4.

The full publication is available for download for $7 in the Purdue Extension Education Store. The field guide helps identify common Indiana woodlot trees. Each week, the Intro to Trees of Indiana web ...

Yet the tree has a dark side that haunts many, including reader Shane in Lakewood, who writes, “My question to you is regarding adding black walnut tree leaves and fruits to my compost pile.

"Black walnut trees are easy to identify by the large round nuts that drop after the leaves fall in autumn. Black walnuts are fairly common in Maryland and may live for up to 250 years.