Trichodiadema is a genus of succulent plants of the family Aizoaceae. It includes 32 species native to Namibia and the Cape Provinces, Free State, and Northern Provinces of South Africa.
The name "Trichodiadema" comes from the ancient Greek "τρῐχός" (hair, bristle) and "διαδεμα" (crown).
Description Trichodiadema are small, short-stemmed succulents with small, elongated, alternating sections measuring 8 mm long. They are grey and green.
At the apex of each alternating section is a ring of small bristles radiating around the center, that give the appearance of a cactus areola.
The flowers look like daisies, with red, pink or white petals, earning them the nickname "Desert Rose". Two species however, Trichodiadema aureum and Trichodiadema introrsum, have flowers that are yellow.
Cultivation The plant requires sun exposure (although not too intense), and well-drained soil.
Propagation is by division of the clumps. Propagation by cuttings is difficult, because of the risk of rot.
Trichodiademum densum has gained the Royal Horticultural Society's Award of Garden Merit.
List of species
Trichodiadema attonsum Trichodiadema aureum Trichodiadema barbatum Trichodiadema bulbosum Trichodiadema burgeri Trichodiadema calvatum Trichodiadema densum the most known species. Stems lie on the ground. Silks are longer than those of other species. Trichodiadema emarginatum Trichodiadema fergusoniae Trichodiadema fourcadei Trichodiadema gracile Trichodiadema hallii Trichodiadema hirsutum Trichodiadema imitans Trichodiadema intonsum Trichodiadema introrsum Trichodiadema littlewoodii Trichodiadema marlothii Trichodiadema mirabile Trichodiadema obliquum Trichodiadema occidentale Trichodiadema olivaceum Trichodiadema orientale Trichodiadema peersii Trichodiadema pomeridianum Trichodiadema pygmaeum Trichodiadema rogersiae Trichodiadema rupicola Trichodiadema ryderae Trichodiadema setuliferum Trichodiadema stayneri Trichodiadema strumosum
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