Nepenthes gymnamphora /nɪˈpɛnθiːz dʒɪmˈnæmfɔːrə/ is a tropical pitcher plant native to the Indonesian islands of Java and Sumatra.

[4] The specific epithet gymnamphora is derived from the Greek words gymnos (naked) and amphoreus (pitcher).

[4] This was first noted in 1994 by Jan Schlauer and Joachim Nerz, who provided a lectotype for N. pectinata: Bünnemeijer 700, a specimen collected on Mount Talakmau.

[12] Nepenthes xiphioides[b] was described by Bruce Salmon and Ricky Maulder in a 1995 issue of the Carnivorous Plant Newsletter.

[9] The authors treated N. pectinata as conspecific with N. gymnamphora, and distinguished N. xiphioides from the latter based on a number of characters shown in the table below.