Spergularia

Bracts inconspicuous Spergularia
Sepals pubescent, as long as the capsule or nearly so
Seeds not winged or occasionally a few winged
Stamens mostly 4 or less
Stipules of younger branches connate for c. half their length, but sometimes splitting with age. Leaves 10–40 mm long, fleshy. Petals pink grading to white at the base, or entirely white. Capsule narrowly ovoid. Seed usually not winged. Coast. Saline wetland areas. Probably native. Fl. spring Spergularia marina
Stipules free or slightly fused at base. Leaves 7–20 mm long, hardly fleshy. Petals pink. Capsule sub globose. Seed not winged. Annual often forming matt. Uncommon weed. Introd. from Europ. Fl. spring Lesser Sand-spurrey Spergularia diandra