Not sure of this one - on edge of prom
No interactions present.
It is Spergularia but I cannot tell for sure if it is Sand Spurrey from the photo so hopefully an expert can.
...it's all about getting there - in terms of recognition
rubra usually has more uniformly deep pinkish-purple flowers
Lat/Lng: 51.3829, 1.3281
OS grid ref: TR316701
edge of prom