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 ...

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 -- ...

DR. VAUGHAJST CORNISH in his interesting study of historic thorn trees shows that their distribution in England coincides strikingly with the areas invaded in the south by the Belgic tribes from Gaul, ...

There are nearly 150 species of invasive plants in Wisconsin, causing damage to the economy, ecosystems and human health in the state, according to the Invasive Plants Association of Wisconsin. Mary ...

Beautiful things are sometimes nothing but bad news. That’s true for this week’s Mystery Plant. What an early spring spectacle it is in full bloom! Covered with snow-white blossoms, each flower about ...

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 ...