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Theres quite alot of species of Willowherb, the one I identified, is just the plant having its leaves mature fully, before flowering! Heres a link that is reliable for better ident:
Lat/Lng: 50.917566666667, -1.4549111111111
OS grid ref: SU384132
This was found on an allotment. I'm not sure whether this was planted or if it is a weed.