`whomping willow,

The Whomping Willow is a very valuable, very violent species of magical plant. Whomping Willows attack anyone and anything that comes within range of its branches. The limbs of the plant function as arms and any damage to them must be treated in much the same way. If your off your mind,you'd ever risk yourself and come over here and its hard to get yourself into it without facing the real crazy notorious braches and roots flying here and there in the air and falling hard on the floor unless you know the secret way to get inside. Keep away if you're not a nutcase.