Photo taken 20/05/19 at Park Gate Down nature reserve, Kent
This is not an Oxlip at all, but a fairly common hybrid between a Primrose and a Cowslip.
Photo taken 20/05/19 at Park Gate Down nature reserve, Kent
Photo taken 28/04/15 at Monks Wood nature reserve, Cambs.
Photo taken 15/04/09 at Ashridge, Bucks.