Alluaudia procera. Madagascar ocotillo or Alluaudia procera, is a deciduous succulent plant species of the family Didiereaceae. Native to Madagascar. Although similar in appearance to the Ocotillo, it is not closely related. Young alluaudias form a tangle of stems that last for several years after which a strong central stem develops The basal stem at maturity leaves a tree-like stem that branches higher up on the main trunk.