So if you're worried about cotton clogging screens or AC ... concerns linked to the pollen. Some of the trees have multi-stemmed trunks. The leaf stalk is nearly as long as the leaf itself ...

It has serrated compound leaves and furrowed, dark-colored bark during dormancy. Cottonwoods are popular (Populus) hardwood trees. You can identify cottonwoods by spotting the cotton it produces.

Two physicists from the Technical University of Denmark have found that leaf shape is a determining factor in the distance leaves travel as they fall from their tree. In their paper published in the ...

You might think that windiness plays a role here—maybe some trees are just uniquely shielded from the elements, thus keeping their leaves? That doesn’t seem to be the case, though. In their ...