There are more than 20 species and subspecies of hickory trees native to the eastern two-thirds of the U.S. The most common species in Pennsylvania are the bitternut, mockernut, pignut, shagbark ...

For Pennsylvania, these are the best native trees to plant according to the Pennsylvania Department of Conservation & Natural Resources (DCNR). Oak Trees. ... Hickory Trees.

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

Shagbark hickory nuts drop from the tree as a green orb the size of a golf ball. That orb is a thick husk. It often splits on impact or as it dries out.