This plant was bought in as T. ionantha X brachycaulos. I'm quite happy when it started to show sign of flowering a couple of weeks ago. Now, with the whole inflorescensce has finally emerge out I'm begining to have doubt on its true identity. I suspect this hybrid could be a cross between ionantha with caput medusae rather than brachycaulos. Note the multi spike inflorescence? That's not the characteristic of brachycaulos.
Whatever it was, it's a very succullent fat plant though. Can adapt to direct morning without any burns.