;Found in Northern Africa and Arabia, Caralluma acutangula is the largest of the Genus with erect grey green stems that can be 3 inches wide and a foot tall. Its stems lack the markings typical of other Carallumas. It produces a bush a few feet across. It's nearly black flowers form a cluster at the tip of the stems.
     I got this seedling from Tohono Chul Park but it was still marked Miles2go. Tanque Verde Nursery also had some nice ones.