How the plant grows
This Bornean mountain pitcher plant changes its feeding strategy as it matures. Young plants produce more conventional insect-catching pitchers. Mature upper pitchers have a wide opening and a raised lid that offers sweet secretions. The pitcher is a modified leaf, not a flower, and its changing shape reflects a different ecological function at different life stages.
Sources & references · 1
Biology Letters, Clarke et al. (2009) · Tree shrew lavatories: nitrogen sequestration in Nepenthes lowiiConnections with animals
Mountain treeshrews lick the lid secretions while positioned above the pitcher opening and can deposit droppings inside. The plant absorbs nitrogen from this input; the mammal receives food. Research describes this exchange as a mutualism, not the plant catching and digesting the mammal. Nepenthes rajah has another documented association with mountain mammals.





