Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on ...

"Data correlating shape and settling across a broad range of natural, mutated, and artificial leaves support the fast-leaf-hypothesis: Deciduous leaves are symmetric and relatively unlobed in part ...

In my previous column, "Spring watchfulness is key for trees and gardens," I touched on a big subject. In the intervening two ...

Poison hemlock may look like a harmless flower, but it can cause rash, vomiting and even death.A plant used by ancient Greeks ...

Two physicists from the Technical University of Denmark have found that leaf shape is a determining factor in the distance ...

Siberian elm (Ulmus pumila) is an invasive tree native to northeastern Asia. It was introduced into the U.S. in the 1860s for ...