Sedum pulchellum

Sedum pulchellum is a species of flowering plant in the family Crassulaceae known by the common names widowscross and widow's cross. It is native to calcareous areas of the South-Central and Southeastern [United States], where it is found on flat rock outcrops, particularly cedar glades. Most populations are in the Interior [Low Plateau], and Ozark and Ouachita Mountains.
It produces pink-white flowers in late spring. It is a winter annual, germinating in the fall and dying in the summer.