Curly—or Karelian—birch is a mysterious tree with a patterned wood texture and a bizarre trunk shape. Unlike the elegant white-stemmed traditional birch, the Karelian one may seem unsightly at first ...

Finnish researchers are investigating unexplained leaf loss affecting birch trees across southern Finland. Scientists suspect ...

Few shade trees are as distinctive in the home landscape as birch trees. Their unique bark characteristics, distinctive growth form and graceful delicate foliage are reason alone to feature one or ...

The birch trees in this photo appear to have been infested with bronze birch borer, as indicated by the dead upper branches where larvae have disrupted the flow of water and nutrients.

Q: Can you help me figure out what’s likely going on with this river birch tree? The tree has been dropping leaves incessantly since about April/May, hundreds per day. Should this tree be dropping its ...

Researchers have elucidated the pivotal function of the BpNAC90 gene's phosphorylation in birch trees, which is essential for their drought tolerance. This discovery in gene expression regulation ...

Bright and white against blue skies, paper birch trees (Betula papyrifera) liven up the winter landscape, especially when contrasted against green conifers, which have made them darlings of seasonal ...

In many parts of Switzerland, birch trees are currently in full bloom. According to the Swiss Allergy Center "Aha!", this is a sign of an upcoming strong hay fever season. The Allergy Center advises ...

Just like living as a birder and naturalist, being an arborist means that I can’t help but look at trees. I see poor pruning, beautiful forms, and signs of stress — there’s no way for me to ...