Described in 1989, this is still a species that is little known about.
It is only found in sand between rocks in the salt spray zone of South Africa’s northwest coast (near Port Nolloth).
The leaves are trigonous*, placed in four rows (=tetrastichum) and often with a black cover, probably caused by a fungus.
As the flowering time is not mentioned in the literature, it may be of interest to know that the photos below were made in late August and early September.
* trigonous = three-angled in cross-section