Tree with cork-like growth

Tree with cork-like growth

Observation - Tree with cork-like growth - UK and Ireland. Description: Hi guys, first of all the tree identification - the buds are alternately arranged, purplish, and the twigs are very downy. I have a feeling it might be Wych Elm. Secondly, it had a corky kind of growth on the twigs - I'm guessing this is a disease of s

Hi guys, first of all the tree identification - the buds are alternately arranged, purplish, and the twigs are very downy. I have a feeling it might be Wych Elm.

Secondly, it had a corky kind of growth on the twigs - I'm guessing this is a disease of some sort?