Knapweed, with hairy buds and stems. Thin pink petal and sessile leave shape.
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Thanks for comment, was not sure at all about my ID of 'Greater'. I decide on 'Greater' as the flower head was more ragged than I thought for 'Common'. I should have looked at the leaves more.
Lat/Lng: 51.7586, -2.1771
OS grid ref: SO878066