Smelly shepherds-bush (Boscia foetida subsp. foetida) by Alex Dreyer at 6:48 am 07/10/11

Confidence: It's likely to be this, but I can't be certain.

Notes: The first photo shows details of the leaves and it does not agree with that of the description of Ceraria namaquensis from the "Tree Atlas of Namibia": Shrub or small tree. BARK creamy-white to silver-grey to brown; older branches sturdy, appearing out of proportion to the tiny leaves. LEAVES simple, clustered on dwarf shoots; blade linear to narrowly obovate, virtually cylindrical, 3–4 x 1–1.5 mm; succulent, green, hairless. FLOWERS small, pale to deep pink. FRUIT very small and inconspicuous.