A generally small annual or biennial plant with small leaves and white flowers of dry and freely-drained soils, gravel pits, walls, rock faces etc. Generally more slender, and less common, than the similar subspecies serpyllifolia. The two subspecies are separated by the shape of the seed capsules.
All names: Arenaria serpyllifolia ssp. leptoclados (Reichb.) Nyman; Arenaria leptoclados (Reichb.) Guss