A native cultivar, a succulent, and a low-growing groundcover with high drought tolerance. Rounded leaves arise in whorls of three, and white star-shaped flowers adorn this lovely little plant. A reliable spreader in the right spot, but one that won't get out of hand, nor is it difficult to uproot and transplant if you like. I found enormous populations of these clinging to huge boulders in Charlestown State Park (IN).