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From experience in Cheshire, Galinsoga quadriradiata is much more common there, but it is hard to tell from a photo which one it is.
If David Trevan or other botanists are reading this, could I ask you to add a further identification please? It's come to light that iSpot used to incorrectly link the scientific name for Gallant Soldier (parviflora) to the name for Shaggy Soldier (quadriradiata), see discussion at:
This means that if the ID can be confirmed as Gallant Soldier then the name Galinsoga parviflora needs to be added again - or alternatively, if there is doubt over which species it is then an identification just as genus Galinsoga is probably better.
Apologies for the problem with the name, which has been fixed in the recent updates and shouldn't cause problems in future.
Entomologist and biological recorder
Lat/Lng: 53.3, -2.4
OS grid ref: SJ7787