Burro's tail or donkey's tail (Sedum morganianum) is a trailing succulent that looks best in a hanging basket or container sitting on a ledge, shelf, or plant stand so it can drape over. Each stem can reach up to three feet long and is packed with gray-green leaves about the size and shape of a plump grain of rice. The leaves have a pale sheen on them that wipes off when you touch them so it will show your fingerprints. Also, the leaves are fragile, falling off easily so it's best to avoid handling this plant as much as possible. Native to Mexico, burro's tail prefers bright light for best performance. You can let the soil dry out between waterings, especially in winter when it isn't growing as actively.