A lime-avoiding plant of open sandy or gravelly habitats, including lake shores, gravel pits, railway tracks etc. It is rare, but widely scattered across Northern Ireland.
All names: Spergularia rubra (L.) J.S. & C.Presl; Alsine rubra (L.) Crantz
NBN Atlas mapping: Species account : NBN Atlas UK Species Observations database
iNaturalist: Species account : iNaturalist World Species Observations database