Blue flower in field

Blue flower in field

Observation - Blue flower in field - UK and Ireland. Description: Blue flower about an inch or so across. At first sight there appered to be 10 petals but the flowers were fading and I may have been looking at 5 split petals. There were a number of these plants scattered over an area of a grassed field. The plants

Blue flower about an inch or so across. At first sight there appered to be 10 petals but the flowers were fading and I may have been looking at 5 split petals. There were a number of these plants scattered over an area of a grassed field. The plants were about a foot or so tall and the leaves were lanceolate and the stems possibly ridged. Sorry for poor photo' I only had my 'phone camera.