Nepenthes rajah

Nepenthes rajah
Large lower pitcher of Nepenthes rajah. Mount Kinabalu, Borneo.
Conservation status
Endangered (IUCN 2.3)
CITES Appendix I (CITES)
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Nepenthaceae
Genus:	Nepenthes
Species:	N. rajah
Binomial name
Nepenthes rajah Hook.f. (1859)
Borneo, showing natural range of Nepenthes rajah highlighted in green.
Synonyms
Heterochresonyms Nepenthes rajah auct. non Hook.f.: A.Slack (1986) [=Nepenthes × alisaputrana] Nepenthes rajah auct. non Hook.f.: G.Cheers (1992) [=Nepenthes × kinabaluensis]

Nepenthes rajah /nᵻˈpɛnθiːz ˈrɑːdʒə/ is an insectivorous pitcher plant species of the Nepenthaceae family. It is endemic to Mount Kinabalu and neighbouring Mount Tambuyukon in Sabah, Malaysian Borneo.Nepenthes rajah grows exclusively on serpentine substrates, particularly in areas of seeping ground water where the soil is loose and permanently moist. The species has an altitudinal range of 1500 to 2650 m a.s.l. and is thus considered a highland or sub-alpine plant. Due to its localised distribution, N. rajah is classified as an endangered species by the IUCN and listed on CITES Appendix I.