Euphorbia boughyeyi - Ribbon Cactus or Ribbon Spurge. Milk Cactus. Native to areas of East Africa. Can grow into a small shrub if allowed, but not cold hardy. Enjoys dry feet, and lots of sunlight. Grow in a south window in your home and don't allow it to get colder than 45 degrees. In Missouri move outdoors for the summer and you will see lots of new growth.
 
** Plants and pots size will vary from the photos. This plant is available at the greenhouse.