Geocarpon glabrum, commonly called Appalachian stichwort,[2] is a species of flowering plant in the carnation family (Caryophyllaceae).

[3] Its natural habitat is areas of siliceous rock outcrops, which include granite, sandstone, gneiss, and schist.

In the Cumberland Mountains, this species is a major component of sandstone glade communities.

[4] Due to its narrow habitat requirements, this species is uncommon throughout its range.

It can be distinguished from G. groenlandicum by its taller stature, annual habit, upright and not mat-forming growth, smaller petals, and flowers in greater number per cyme.