Thaumatophyllum xanadu is a perennial forb belonging to the arum family Araceae and the genus Thaumatophyllum, formerly classified under the Meconostigma subgenus of Philodendron. This plant is native to Brazil, but is widely cultivated as a landscape plant in tropical, subtropical and warm temperate climates. Thaumatophyllum xanadu eventually forms dense clumps up to 1.5 metres (5 ft) tall by 2 metres (7 ft) wide. It has glossy green, deeply dissected, lobed leaves up to 40 cm (16 in) long by 30 cm (12 in) wide. Its flowers have dark red spathes. It may occasionally produce aerial roots.