Is the part of a tree which features the branches that grow from the main stem that support the leaves and reproductive structures, some species such as Hazel or Willow can have 2 or more main stems with separate crowns growing in unison to form one crown, this growth habit is known as a ‘multi-stemmed tree’.

Tree crown structures can vary in many forms such as Columnar, Conical, Broad Vase and Weeping.