On seeing this species for the first time, one would be excused for mistaking it for an Antegibbaeum. It was first described as a Ruschia, but in 2003 a new genus was established just for this one species. Since then, two more species have been added. If you are interested in the whole complicated story, you should read A Gordion knot in Ruschioideae by H. Hartmann and I. Niesler in Bradleya 30/2012, p. 33-60.
The plants form dense mats 7-10 cm high with persistent leaves 5 to 6 cm long and 0.7-0.8 cm wide.
They flower in June-August; the flowers have long stalks (to 5 cm long), are to 3.5 cm in diameter and open for only a few hours in the afternoon. After pollination they turn into
Although the species grows only in the Robertson, Swellendam and Worcester districts of the western Cape, it is locally abundant there, usually in full sun on gentle shale slopes, at an altitude of 200-250 m. In this area most of the rainfall occurs in winter.