Dietes is a small genus of 6 species. There are 5 Dietes Varieties in South Africa: Dietes bicolor, Dietes flavida, Dietes iridoides, Dietes grandiflora and Dietes butcheriana, of which only Dietes iridoides occurs outside of southern Africa, being found from the Western Cape to Tanzania, Kenya and Uganda. The sixth species, Dietes robinsoniana, occurs on Lord Howe Island in Australasia.
