Bryophyllum daigremontianum, commonly called devil’s backbone, mother-of-millions, mother-of-thousands, alligator plant, or Mexican hat plant is a succulent plant native to Madagascar. Like other members of its genus Bryophyllum, it is able to propagate vegetatively from plantlets that develop on its phylloclade margins. All parts of the plant are poisonous (they contain daigremontianin and other bufadienolides), which can even be fatal if ingested by infants or small pets.