Some of the most interesting euphorbias come from Madagascar.

Three related genera from Africa.

There were about 100 succulent Senecio species, some of which have been moved to the genera Caputia, Curio, and Kleinia. There are many non-succulent Senecio species.

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Dracaena (=Sansevieria) is a genus of about 70 species of flowering plants, native to Africa, Madagascar and southern Asia. Common names include mother-in-law's tongue, devil's tongue, and snake plant.

Stapeliads are mainly from Southern Africa. They are called carrion flowers because of the smell they emit to attract flies for pollination.

Many from Madagascar, some from Africa and Asia in or near India.

The name means "Thick Foot". Native to only Southern Africa and Madagascar.

The varied genus Crassula contains around 200 species and many cultivars.

Dudleya from North America, Cotyledon from South Africa to Arabia.