stonecrop UK /ˈstəʊnˌkɹɒp/US /ˈstoʊnˌkɹɑp/ noun2 •Any of various succulent plants of the Crassulaceae family, native to temperate zones, especially in genus SedumA trailing plant with flowers like small white stars had bound itself across the bows as if in reverence for the fallen king, and in the crevices of his stony hair yellow stonecrop gleamed. — 1954 •Certain plants of genus Lithospermum, in family Boraginaceae. formsstonecrops