查爾斯·克拉克（Charles Clarke ）在蘇門答臘和馬來半島發現了一種瘦小豬籠草（N. gracillima）與麥克法蘭豬籠草的自然雜交種（N. gracillima × N. macfarlanei）。
參考文獻
^ Clarke, C.M. 2002. A Guide to the Nepenthes of Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
^ Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
^ McPherson, S.R. 2009. Pitcher Plants of the Old World. Redfern Natural History Productions Ltd., Poole.
Bourke, G. 2003. Exploring the Genting Highlands.PDF Carniflora Australis (2): 23–26.
● Clarke, C.M., R. Cantley, J. Nerz, H. Rischer & A. Witsuba (2000). Nepenthes macfarlanei. 2006.IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Listed as Vulnerable (VU D2 v2.3).
● Chua, L.S.L. 1995. Conservation studies with Nepenthes macfarlanei Hemsl. in Peninsular Malaysia. Ph.D. thesis, University of Bath, London. 200 pp.
● Chua, L.S.L. 2000. The flowering phenology and floral biology of Nepenthes macfarlanei (Nepenthaceae) from Mt. Purun, Peninsular Malaysia. Journal of Tropical Forest Science 12(2): 197–206.麥克法蘭豬籠草的上位籠
● Chua, L.S.L. 2000. The pollination biology and breeding system of Nepenthes macfarlanei (Nepenthaceae). Journal of Tropical Forest Science 12(4): 635–642.
● Schmid-Höllinger, R. 1997. Nepenthes macfarlanei: Prey found in ground pitchers.PDF (440 KiB) Carnivorous Plant Newsletter 26(2): 46–50.
● Shivas, R.G. 1983. Nepenthes of Gunung Ulu Kali.PDF (1.54 MiB) Carnivorous Plant Newsletter 12(3): 65–67.
● Smythies, B.E. 1965. The distribution and ecology of pitcher-plants (Nepenthes) in Sarawak. UNESCO Humid Tropics Symposium, June–July 1963, Kuching, Sarawak.
麥克法蘭豬籠草的上位籠