Succulent Plant, Mesembryanthemum Lehmanni
This is a slow growing but beautiful succulent plant. Give it a little water every few days (to "just wet", not sopping, and not damp) or some leaves will stretch from being too full and become scarred (white). If, however, any of the top leaves do become damaged, you can cut them off at the stem just above a good set of leaves below. In doing so, you will force the plant to branch out there, too. You can see in photos 2 & 3 that I pruned one of the plants very close to the base which is why it has two heads.