Philodendron Xanadu, aka Thaumatophyllum xanadu or Philodendron 'Winterbourn', belongs to the family Araceae and subgenus Meconostigma. It is a stunning houseplant, with shiny green, leathery leaves, each having multiple lobes. Unlike other Philodendrons, this variety is not a climber but instead grows in a mounded shape on a thick woody stem, often becoming wider than it is tall.