Cephalophyllum rigidum

Cephalophyllum rigidum is a compact succulent perennial growing creeping, prostrate branches, probably not often taller than 10 cm, and spreading a bit wider, maybe a little over double that. 

These flowers were photographed in August, the plant growing in the open in sandy soil. The capsules have many locules with big covering bodies, opening during rain and releasing the small brown seeds.

The species, a South African endemic, is found in the Namaqualand part of the Northern Cape. 

The habitat is semi-arid scrub and succulent veld in loamy to sandy soils where low winter rainfall is received. The habitat population is deemed of least concern early in the twenty first century (Smith, et al, 1998; iNaturalist; https://www.worldfloraonline.org; http://redlist.sanbi.org).