Nepenthes faizaliana /nɪˈpɛnθiːz ˌfaɪzæliˈɑːnə/ is a tropical pitcher plant endemic to the limestone cliffs of Gunung Mulu National Park in Sarawak, Borneo.
[3] The type specimen of N. faizaliana, S 44163 (Lai & Jugah), was collected on November 10, 1981, on Batu Panjang[4] in Gunung Mulu National Park.
[2] Nepenthes faizaliana was named after Muhammad Khairul Faizal, son of describing author J. H.
[2] In 1997, Matthew Jebb and Martin Cheek reduced N. faizaliana to a heterotypic synonym of N. stenophylla in their monograph on the genus.
[7] However, Charles Clarke retained N. faizaliana as a distinct species in his monograph Nepenthes of Borneo, which was published a few months after the work of Jebb and Cheek.
The upper surface of the lamina is glabrous, whereas the underside has a sparse covering of short, branched hairs.
[3] Nepenthes faizaliana is endemic to the limestone peaks of Gunung Mulu National Park in Sarawak, Borneo.
[10] It grows in close proximity to a number of other Nepenthes species, including N. stenophylla, N. tentaculata, and N. vogelii, but only one putative natural hybrid with N. veitchii has been recorded.
[8] Although most populations of N. faizaliana are remote and inaccessible to regular visitors, the species can be easily observed along the Pinnacles Trail on Mount Api.
These two species differ in the extent of their indumentums; that of N. faizaliana is well developed and conspicuous, while mature plants of N. boschiana are virtually glabrous.
It differs from that species in having more lanceolate leaves, larger inflorescences, as well as a wider, more colourful[10] and less recurved peristome.
In their description of the former, Adam and Wilcock distinguished these taxa on the basis of inflorescence structure, the size of the glandular region on the inner surface of upper pitchers, and the development and characteristics of the indumentum.