The genera name derives possibly from the Arabic Tharakhchakon, or from the Greek Tarraxos. The species name means 'common'. Some may argue it is not a caudiciform, but I'm sure it would be in many collections, if it was rare or extinct in the wild. In general, I have avoided rare plants in my collection, if I could get common caudiciform members of the same family. Spread well around the world. Close-up of flower. A higher form. Can get even higher when in the shadows. Close-up of seeds.