Pink Primrose in Stoke Woods?

Pink Primrose in Stoke Woods?

Observation - Pink Primrose in Stoke Woods?. Description: These appear to be pink primroses and, although grouped together, the pink flowers are on separate plants to their more commonly coloured, pale yellow neighbour. Is this common or could this possibly be a hybrid or maybe a subspecies?

These appear to be pink primroses and, although grouped together, the pink flowers are on separate plants to their more commonly coloured, pale yellow neighbour.

Is this common or could this possibly be a hybrid or maybe a subspecies?