Nepenthes boschiana

Nepenthes boschiana (; after Johannes van den Bosch), or Bosch's pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is most closely allied to "N. faizaliana". "Nepenthes borneensis" is considered a synonym of this species. "Nepenthes boschiana" has no known natural hybrids. No valid forms or varieties have been described. "Nepenthes boschiana" belongs to the loosely defined ""N. maxima" complex", which also includes, among other species, "N. chaniana", "N. epiphytica", "N. eymae", "N. faizaliana", "N. fusca", "N. klossii", "N. maxima", "N. platychila", "N. stenophylla", and "N. vogelii".
The species was formally described by Pieter Willem Korthals in his 1839 monograph, "Over het geslacht "Nepenthes"". B. H. Danser, in his 1928 monograph "The Nepenthaceae of the Netherlands Indies", wrote the following:
Korthals states the natives who accompanied him on Mt. Sakoembang gathered the not yet opened pitchers, as the water which they contained was a medicament against inflammation of the eyes, whereas others cut the opened pitchers as playthings for their children. He describes the habitat as sterile, open and stony. The vernacular name '"daoen sompitan"' is translated by him as blow-pipe-leaf; according to dictionaries this is right.