Leaves are thick and wedge-shaped. Flowers bright yellow. Very common in rock Gardens. A more dwarf variety, S. acre minus , also is available. Normally a rather loose mat which turns bronze in poor soils.
Leaves are about the size and shape of rice kernels.
Flowers are tiny and may be white but most often tinged with pink. Variety murale is slightly more dwarf and has deeper pink flowers. S. divergens Leaves are fleshy and egg-shaped. Color of foliage varies from glossy green to coppery red. This species, unfortunately, closely resembles a common annual weed, purslane, and may be accidentally destroyed in the Garden.