pollard
verb
[ ˈpɒləd ]
• cut off the top and branches of (a tree) to encourage new growth at the top.
• "it was the practice of local authorities to pollard these trees on a regular basis"
pollard
noun
• a tree whose top and branches have been pollarded.
• "young trees have grown up between the pollards"
• an animal that has lost its horns or cast its antlers.
Origin:
mid 16th century: from the verb poll + -ard.