Growth? on a Tree

Growth? on a Tree

Observation - Growth? on a Tree. Description: This tree was in an area of wet woodland. I think it was an Ash or Willow (it had very deep vertical striations in the bark). The tree had 3 of these Growths

This tree was in an area of wet woodland. I think it was an Ash or Willow (it had very deep vertical striations in the bark). The tree had 3 of these Growths