Orbea umbracula

Orbea umbracula, previously Stultitia umbracula and Stapelia umbracula respectively at different times, is a clump- or mat-forming dwarf stem succulent. 

This is not a South African plant. It is distributed in Zimbabwe and Mozambique. The specific name, umbracula, is derived from the Latin word umbraculum meaning parasol or umbrella, referring to the shape of the flower corolla (www.llifle.com).