This Orbea used to be classed under Caralluma, but is now officially called Orbea dummeri. Many people still know it as Caralluma dummeri. This plant was collected by me at Marble Quarry near Nairobi in Kenya. It likes a fairly high winter temperature, somewhere between 10 and 15°C to do well. It is easily propagated by breaking off the stems, dying them for a couple of weeks and placing them in the soil again. They can be grown in the full sun, but it seems to do better in slight shade. It is one of the few stapelias that has bright green flowers which is quite unusual for the genus. They are not scented, bad or otherwise, so worth having in your collection.