Dracaena is a genus of about 40 species of trees and succulent shrubs classified in the family Ruscaceae in the APG II system, or, according to some treatments, separated (with Cordyline) into a family of their own, Dracaenaceae or in the Agavaceae. The majority of the species are native in Africa and nearby islands, with a few in southern Asia and one in tropical Central America.

Dracaena have a secondary thickening meristem in their trunk. This monocotyledonous secondary thickening meristem is quite different to the thickening meristem found in dicotyledonous plants and is termed Dracaenoid thickening by some authors. This character is shared with other members of the Agavaceae and Xanthorrhoeaceae among other related families.

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