We found that after defoliation by spongy moths, aspen trees grew a second set of leaves with much higher levels of ...

Trees are master multitaskers. No duty is too daunting or tedious for these sky-scratching organisms. From soil stabilizers ...

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 ...

The Trump administration's efforts to end DEI programs is hitting some unexpected targets, including a nationwide effort planting shade trees in neighborhoods to reduce extreme heat.