In this edition of ID That Tree, Purdue Extension Forester Lenny Farlee showcases the unique features of prickly ash. The northeast member of the Citrus family (not the Ash family!) is a shrub with ...

There are several kinds of trees in the Skiatook area that have thorns. This note describes four of them. Black locust, Callery pear, chittamwood and Osage orange. The thorns of black locust are small ...

This native Indiana tree species is found in three southwestern counties near the lower Wabash River. It is often found in wet or ponded locations where there is standing water or high water tables.

It’s the branch of a tree, but this tree is no good for a tree house. Take a look at the thorns, which can be found up and down the trunk, and also potently arming the branches. You won’t be inclined ...

A question for Dan Gill: I just planted a 3-foot Meyer lemon tree. How do I keep it from growing thorns? Any other tips would be appreciated. -- Pam Barron Answer: All of the citrus trees we grow -- ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Trees are among the earth's most useful and beautiful products of nature.