Larch Tree

Larch Tree

Observation - Larch Tree - UK and Ireland. Description: Can anyone suggest what is going on at the top of this tree? I suppose it is some sort of fasciation or abnormal growth phenomenon. What might be causing it? Is it common in larches/conifers?

Can anyone suggest what is going on at the top of this tree? I suppose it is some sort of fasciation or abnormal growth phenomenon. What might be causing it? Is it common in larches/conifers?