Nepenthes × hookeriana (after Joseph Dalton Hooker), or Hooker's Pitcher-Plant, is a common natural hybrid involving N. rafflesiana and N. ampullaria. It was originally described as a species.
It is a relatively common natural hybrid found in lowland conditions throughout Peninsular Malaysia, Borneo, Singapore and the Indonesian island of Sumatra. Like its parental species, the hybrid is generally found in recently disturbed clearings.
- Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
- Clarke, C.M. 2002. A Guide to the Pitcher Plants of Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
- Turnbull, J. & A. Middleton 1984. Carnivorous Plant Newsletter 13(3): 61–67.