About 15; see text Aichryson is a genus of about 15 species of succulent, subtropical plants, mostly native to the Canary Islands, with a few in the Azores, Madeira and Morocco.

They are related to Sempervivum, Jovibarba, Greenovia, Aeonium and Monanthes, readily seen in their similar flowers.

domesticum 'Variegatum' is a recipient of the Royal Horticultural Society's Award of Garden Merit.

[2][3] Recent phylogenetic studies of Crassulaceae indicate that Aichryson is closely related to Monanthes and Aeonium (both genera are also largely endemic to the Canary Islands).

Relationships within Aichryson were investigated by Fairfield et al. (2004) [Plant Systematics and Evolution 248: 71–83].