A random selection from 550 clones out of microprop.
Some time back, Borneo Exotics bred two of the only nine plants known in cultivation of this, one of the rarest of all Nepenthes. The area where seed that gave rise to the original nine plants was collected was devastated by logging activities in the late 1990s and Nepenthes robcantleyi is believed to be either critically endangered, or possibly even extinct in the wild. The female parent of this release has the cultivar name ‘Queen of Hearts’. The male parent named ‘King of Spades’ is darker in overall coloration than the ‘Queen of Hearts’ and has green peristome wings.
For some years this species was labeled as a form of Nepenthes truncata, although there were clearly striking taxonomical differences between them and the existing published description of Nepenthes truncata. In December 2011 Nepenthes robcantleyi was described in the Noridic Journal of Botany as a distinct species in its own right by Dr. Martin Cheek, a taxonomist with the Royal Botanic Gardens at Kew.
Some differences in pitcher coloration, morphology, plant vigor and size when mature, can be expected to appear between individuals. All exhibit the dark coloration that seems to be an invariable characteristic of the species.