Sedum glaucophyllum

Sedum glaucophyllum, the cliff stonecrop, is a species of "Sedum" native to the Appalachian Mountains in the eastern United States from West Virginia, Maryland, Virginia and North Carolina.
"Sedum glaucophyllum" is a prostrate, mat-forming evergreen perennial plant forming patches up to in diameter. The leaves are glaucous green, succulent, rounded, long and wide, arranged in a dense helix on the stems. The flowers are white, in diameter, with four slender, pointed petals; they are produced in clusters on erect stems up to tall, held above the foliage.