| Family | CARYOPHYLLACEAE |
| Genus species | Geocarpon groenlandicum (Retz.) E.E.Schill. |
| Bibliography | Bot. J. Linn. Soc. 200: 84 (2022) |
| Native Range | Greenland to e. USA |
| Primary Biome | Subalpine or Subarctic |
| Habitat | rocks and scree |
| Description | leaves to 15mm long, linear, soft, flower ca. 1cm across, on short scape above leaves, petals apically emarginate |
| Size | 15-20cm |
| Color | white |
| Bloom | summer |
| Ca | - |
| Type | subshrub |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Synonyms | Alsine groenlandica (Retz.) Fenzl Alsinopsis groenlandica (Retz.) Small Arenaria glabra Torr. Arenaria groenlandica (Retz.) Spreng. Minuartia groenlandica (Retz.) Ostenf. Mononeuria groenlandica (Retz.) Dillenb. & Kadereit Porsildia groenlandica (Retz.) Á.Löve & D.Löve Sabularia groenlandica (Retz.) Small Sabulina groenlandica (Retz.) Small Stellaria groenlandica Retz. Stellaria labradorica Schrank |
| Territory | 7 Northern America 70 Subarctic America (GNL Greenland, NUN Nunavut) 72 Eastern Canada (LAB Labrador, NFL Newfoundland, NSC Nova Scotia, ONT Ontario, QUE Québec) 75 Northeastern U.S.A. (MAI Maine, NWH New Hampshire, NWY New York, VER Vermont, WVA West Virginia) 78 Southeastern U.S.A. (NCA North Carolina, SCA South Carolina, TEN Tennessee, VRG Virginia) |