Sedum dendroideum (Tree Stonecrop) is a small, shrub-like perennial succulent plant grows up to 90 cm (3 feet) tall spreading up to 4 feet (1.2 m) wide and rooting along stems to form a large mass. The leaves are 2.8 cm long, green, spathulate with an almost ovate leaf that is easily distinguished from the only other similar species, Sedum praealtum, by the presence of subepidermal glands along the leaf margin. The large clusters of small vivid yellow, star-like flowers from above the foliage in late winter and early spring. In winter, its leaves turn red.
Source: Planting Man