The Whomping Willow was planted in 1971 to disguise an entrance into the Shrieking Shack. It's a very valuable plant, but very violent too. The plant attacks anything that comes into range of its branches, and can only be calmed if a knot near its based is touched. It's a deciduous plant, and its limbs function much like arms, so any damage received to it has to be treated as such.
