Included here is the Namib Desert in southern Africa. It represents an extremely arid coastal strip roughly extending from Benguela south to the mouth of the Orange River just south of Alexander Bay.
Of the endemic and near endemic vascular plants so far recorded there are about 249 species in 139 genera and 46 families. There are 6 endemic genera (marked red) and 1 near endemic family (Welwitschiaceae). However, the family Didiereaceae is mainly confined to Madagascar.
Born, J., Linder, H. P. & Desmet, P. 2007. The Greater Cape Floristic Region. Journal of Biogeography, 34: 147-162.
Burk, A. 1998. Floristic affinities of an inselberg archipelago in the southern Namib desert. Journal of Biogeography, 25: 311-317.
Jacobsen, N. H. G. & Moss, H. 1987. A contribution to the flora of the northern Namib. Dinteria, 19: 27-68.
Kolberg, H., Giess, W., Müller, M. A. N. & Strohbach, B. 1992. Namibian Plant Species. Dinteria, 22: 1-121.
Maggs, G. L., Craven, P. & Kolberg, H. H. 1998. Plant species richness, endemism, and genetic resources in Namibia. Biodiversity and Conservation, 7: 435-446.
Simmons, R. E., Griffin, M., Griffin, R. E., Marais, E. & Kolberg, H. 1998. Endemism in Namibia: patterns, processes and predictions. Biodiversity and Conservation, 7: 513-530.
Werger, M. J. A. 1978. The Karoo-Namib Region. In: Biogeography and Ecology of southern Africa. Ed. M. J. A. Werger. Dr W Junk Publishers. The Hague.
Williamson, G. 1997. Preliminary account of the Floristic Zones of the Sperrgetbiet (Protected Diamond Area) in southwest Namibia. Dinteria, 25: 1-68.
Wyk, A. E. van, Smith, G. F. 2001. Regions of Floristic Endemism in Southern Africa. A Review with Emphasis on Succulents. Umdaus Press.