No interactions present.
I think it looks like carrot, either wild or garden escape.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Thanks, both, that is no doubt right. It would also explain the many rays in the umbel. There are the remains of many of last year's wild carrots in the fields nearby, dried brown seed heads, so this is probably wild also.
Lat/Lng: 51.35306, 0.19033
OS grid ref: TQ526638