Nepenthes undulatifolia is a tropical pitcher plant known only from South East Sulawesi, where it grows at an elevation of around 1,800 m above sea level. The specific epithet undulatifolia refers to the wavy laminar margins of this species.Wistuba, A. 2012. Nepenthes undulatifolia. In: Associazione Italiana Piante Carnivore. p. 28.
References
Lee, C.C. 2012. New Pitcher Plant Discoveries. Jungle Notes, February 2, 2012. McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Sulawesi. Redfern Natural History Productions, Poole.