Two months ago I found one specimen of an interesting miniature shrub on the road from Montagu to the southwest entrance of Anysberg Nature Reserve (see first picture). After some digging in the literature I found out that it was Ruschia nana (nana = dwarf). The combination of 6 rather than 5 calyx lobes and locules (compartments in the fruit) on the one hand and compact growth on the other, is apparently unusual.
When I had another look at the picture, it occurred to me that I had seen similar plants a few years before on the farm near Matjiesfontein. By road this is quite a distance, but as the crow flies it is not more than about 70 km.
The other two pictures give an impression of these plants (as it happens they were also taken in October). I am sure they belong to the same species.
They use as a lawn substitute in California now.
Thanks for letting me know. Interesting idea!