Strawberry like plant but 5 petals overlap unlike strawberry flower
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The trick here is to look at the central tooth on the central of the three leaflets. If it's shorter than its two neighbours, then you have P. sterilis. As we can see in this photograph the central tooth is not shorter than those on either side, so P. sterilis it isn't. Also P.sterilis normally has gaps between the petals, as can be seen in the "other observations" section. It's difficult to be sure, but the leaves look glabrous, in whcih case it would be F. ananassa (the Garden Strawberry) - if the leaves were hairy it would be F. vesca.
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Thanks Chris for your detailed comments. Really struggled with this one and it really exposed the shortcomings of the ID book which gave non of the detail you have.
Lat/Lng: 56.5, -3.7
OS grid ref: NO0142