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.