Adenia glauca

Adenia glauca

This succulent from East Africa belongs to the passionfruit family (Passifloracaeae) something you don't normally associate with succulents .However, unless you live in the dry tropics it is a plant you would keep in a pot in a glasshouse. It flowers in late summer after producing a mass of wiry stems and tendrils from a weird massive caudex base. Plants which have this caudex base are often given the name "elephant's foot" and are very much in demand from plant collectors. It is fairly hardy as long it receives minimal water over winter when in becomes deciduous.
2017 update: I no longer have this plant but it is available form specialist succulent nurseries.