This evergreen perennial is characteristic of sandy seashores where it can form very large dense patches. The leaves are short and broad and arranged in four crowded rows along the stems. The whole plant is quite low growing, usually no more than six inches in height or so. Flowers are greenish white and rather insignificant, succeeded by a spherical green dry fruit.
The map shows how it is distributed all around the Northern Ireland coast in suitable places.
All names: Honckenya peploides (L.) Ehrh.; Honkenya peploides (L.) Ehrh.; Arenaria peploides L.
NBN Atlas mapping: Species account : NBN Atlas UK Species Observations database
iNaturalist: Species account : iNaturalist World Species Observations database