The limbs are curvy, squiggly and intertwined. Shrouded in leaves in the summer, in the winter, the gnarly patterns jump out. This is the corkscrew hazel or Harry Lauder’s walking stick, a deciduous ...

As cold weather grips the northern hemisphere, we offer, as our January MoM, a small tree that is most beguiling during the winter months: Corylus avellana contorta, also known as the corkscrew hazel.