- Synonyms: Arenaria stricta
- Family: pink (Caryophyllaceae)
- Habitat: rocky ledges, gravelly soil, often calcareous
- Height: 6-12 inches
- Flower size: 3/8 inch across
- Flower color: white
- Flowering time: June to September
- Origin: native
Photographed in Warren County, New York in early June.
Photographed on the Bruce Peninsula, Ontario.
A stem of rock sandwort, showing the narrow leaves. A flower bud is at the tip.