Asphalanthus amoeni is one of many rare plants found in the Lourensford Alluvium Fynbos, a critically endangered vegetation area endemic to the region around Cape Town and the preserve. This unique vegetation is part of the greater Cape Floristic Region. Encompassing the Western Cape of South Africa, the Cape Floristic Region is an area of extraordinarily high diversity and endemism, home to over 9,000 vascular plant species, many of which are endemic and found nowhere else in the world.