Trichodiadema

Trichodiadema
Trichodiadema densum
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Aizoaceae
Genus:	Trichodiadema Schwantes, 1926
Species
see text

Trichodiadema is a genus of succulent plants of the family Aizoaceae.

The name "Trichodiadema" comes from the ancient Greek "τρῐχός" (=hair, bristle) and "διαδεμα" (=crown)

They come from Cape Province in South Africa.

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, but with dark red petals, earning them the nickname "Desert Rose".

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.

T. densum has gained the Royal Horticultural Society's Award of Garden Merit.^[1]

List of species

Trichodiadema densum

The flower

Trichodiadema attonsum Schwantes Trichodiadema aureum L.Bolus Trichodiadema barbatum Schwantes Trichodiadema bulbosum Schwantes Trichodiadema burgeri L.Bolus Trichodiadema calvatum L.Bolus Trichodiadema concinnum L.Bolus Trichodiadema densum[2] Schwantes Trichodiadema echinatum L.Bolus Trichodiadema emarginatum L.Bolus Trichodiadema fergusoniae L.Bolus Trichodiadema fourcadei L.Bolus Trichodiadema gracile L.Bolus Trichodiadema hallii L.Bolus Trichodiadema hirsutum (Haw.) Stearn Trichodiadema imitans L.Bolus Trichodiadema inornatum L.Bolus Trichodiadema intonsum Schwantes Trichodiadema introrsum (Hook. f.) Niesler       Trichodiadema littlewoodii L.Bolus

Trichodiadema marlothii L.Bolus Trichodiadema mirabile Schwantes Trichodiadema obliquum L.Bolus Trichodiadema occidentale L.Bolus Trichodiadema olivaceum L.Bolus Trichodiadema orientale L.Bolus Trichodiadema peersii L.Bolus Trichodiadema pomeridianum L.Bolus Trichodiadema pygmaeum L.Bolus Trichodiadema rogersiae L.Bolus Trichodiadema rupicola L.Bolus Trichodiadema ryderae L.Bolus Trichodiadema schimperi (Engl.) A.G.J.Herre Trichodiadema setuliferum Schwantes Trichodiadema stayneri L.Bolus Trichodiadema stellatum Schwantes Trichodiadema stelligerum Schwantes Trichodiadema strumosum L.Bolus Trichodiadema tenue L.Bolus

Notes and references

1. "Trichodiadema densum". Royal Horticultural Society. Retrieved 23 July 2013.

2. the most known sprecies. Stems lie on the ground. Silks are longer than those of other species.

External links

• (French) photos on www.AIAPS.org