Nepenthes hamiguitanensis is a tropical pitcher plant endemic to a single peak on the Philippine island of Mindanao, where it grows at elevations of 1200–1600 m above sea level.

A herbarium specimen of N. hamiguitanensis was collected by Victor B. Amoroso and R. Aspiras on March 13, 2007, from the Mount Hamiguitan summit ridge, specifically the trail leading to San Isidro.

[1] Thomas Gronemeyer, Volker Heinrich and Stewart McPherson[3] carried out field studies on N. hamiguitanensis and the other species of Mount Hamiguitan between July 22–24, 2008.

[1] The taxon was subsequently identified as a natural hybrid between N. micramphora and N. peltata in McPherson's two-volume monograph, Pitcher Plants of the Old World, published in May 2009.

[1] These field studies on Mount Hamiguitan also included observations of N. micramphora, N. justinae[5] (then regarded as a form of N. mindanaoensis), and N. peltata.

These measurements are taken from field observations carried out by the describing authors at the type locality on July 23, 2008, since herbarium material of the floral structures could not be located.

[1] An coarse indumentum of short, light brown to white hairs is present on all plant parts, being particularly prominent at the laminar margins.

[1] Nepenthes hamiguitanensis is endemic to the summit ridge of Mount Hamiguitan in San Isidro, Davao Oriental, Mindanao, Philippines.

[1] Nepenthes hamiguitanensis is sympatric with N. justinae[5] (previously identified as N. mindanaoensis) and grows in the same altitudinal range as N. micramphora and N. peltata; the latter two species are typically found in more open areas, where they are exposed to higher levels of incident light.

[1][2] The future of wild populations of N. hamiguitanensis will be further secured if provincial officials of Davao Oriental are successful in their bid to gain recognition of Mount Hamiguitan as a UNESCO World Heritage Site.

[1][2] Nepenthes hamiguitanensis was initially assumed to represent a natural hybrid between N. micramphora and N. peltata, both of which are also present on the upper slopes of Mount Hamiguitan.

Taking these factors into account, the describing authors wrote: "we feel that a recent hybridisation event is unlikely and that Nepenthes hamiguitanensis is not in the earlier stages of specification".

[9][10][11][12] These species are united by a number of morphological characters, including winged petioles, lids with basal ridges on the lower surface (often elaborated into appendages), and upper pitchers that are usually broadest near the base.

[9] Nepenthes hamiguitanensis has no confirmed natural hybrids, although certain plants from Mount Hamiguitan may represent crosses involving it and N. micramphora, N. justinae[5] (previously identified as N. mindanaoensis), and N. peltata.