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 ...

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 ...