The genus Trichodiadema, comprised of around thirty species, is found in southern Namibia and in the Northern, Western, and Eastern Cape Provinces in South Africa. The small shrubby plants are characterized by the diadems of small radiating hairs at the leaf tips. In addition, many species possess a caudiciform base or tuberous roots. They flower from winter to late spring and normally after good rains. The plants are easy to grow and prefer full sun and need adequate water during the blooming season.

Trichodiadema marlothii, commonly known as Sixes Rooikop Crownfig, is a South African endemic species found in the Western Cape province. It is a dwarf perennial succulent, that forms a dense rounded shrub or matt of intermingled short blue green leaves with brownish tips, reaching approximately 4-5 cm tall. It produces gorgeous white or pink blooms during winter.