A natural hybrid involving N. jamban and N. lingulata has been recorded.
In 2009, Adrian Y. Wartono observed a putative cross between  N. dubia and N. jamban in an area where these two species grew with N. lingulata and N. rhombicaulis.
A natural hybrid involving N. jamban and N. lingulata has been recorded. In 2009, Adrian Y. Wartono observed a putative cross between  N. dubia and N. jamban in an area where these two species grew with N. lingulata and N. rhombicaulis.
Nepenthes jamban