First, introduced species are picking up speed rather ... Tallow leaves are relatively thin compared with some native trees in temperate North American forests. If they happen to fall in a body ...

North American species like the Colorado potato beetle and the fall armyworm have become invasive elsewhere. Illustration by Marilyn Foehrenbach Q: In North America, we worry about invasive ...

Populus tremuloides, the quaking aspen of the North American continent, stands as one of the most easily recognized, most beautiful and most admired of all tree species. In order to help ...

Aug 17, 2024 Aug 17, 2024 Updated Aug 18, 2024 The American chestnut tree was one of the most populous and mighty trees in eastern North America before a blight over the past century brought it to ...