What appears to be a knotweed (Fallopia sp.) suffering from a fair amount of damage.
No interactions present.
It does appear to be Fallopia japonica and it does APPEAR to have insect damage. What would cause the damage I do not know. I have heard anecdotally of slug damage to Japanese knotweed although this does not look like it.Reports state that FEW native insects will touch it, but never seem to state which ones do.
Lat/Lng: 50.7235, -2.9393
OS grid ref: SY337919