Typhonodorum lindleyanum, Andasibe, Madagascar
Sometimes called the "Elephant ear plant" but this term is very ambiguous, used to refer to multiple species and even multiple genuses. This particular species, Typhonodorum lindleyanum, is endemic to Madagascar, like pretty much anything in Madagascar. Not visible on the photo is that it grows in water.
''Typhonodorum'' is a monotypic genus of flowering plants in the family Araceae. The single species making up this genus is ''Typhonodorum lindleyanum''. The genus is native to Madagascar, the Comores, Zanzibar, Réunion and Mauritius.