Terrestrial shrub or climber. Stem terete, 2.5⎼3.5 cm in diameter. Leaves petiolate or sub-petiolate; lamina narrowly oblong to 20⎼40 cm long, 6⎼12 cm wide; apex acute; base shortly attenuate; petiole winged, sub-canaliculate. Lower pitchers up to 20 cm tall, 7 cm wide, wholly ovoid, yellowish-green, wings 1.2 cm wide, with filaments to 10 mm long. Pitcher mouth oblique, oval, or circular, up to 6 cm wide. Peristome pure reddish-purple, orange in upper pitchers, cylindrical, 2 cm wide, with ribs 2 mm high; inner edge with teeth to 4 mm long; peristome elevated to the base of the pitcher lid and expanding to 3 cm wide. Pitcher lid elliptic, to 6 x 4.5 cm, without appendage or keel; spur to 9 mm long, 2 mm wide at base. Upper pitchers wholly funnel-shaped, up to 25 cm tall, 7 cm wide, lacking wings.
McPherson, S.R., J. Cervancia, C.C. Lee, M. Jaunzems, F.S. Mey, & A.S. Robinson. 2010. Nepenthes gantungensis (Nepenthaceae), a new pitcher plant species from Mount Gantung, Palawan, Philippines, pp. 1286-1295. In: McPherson, S.R., Carnivorous Plants and Their habitats, vol. 2. Redfern Natural History Productions Ltd., Poole, Dorset, UK.
McPherson, S. & V.B. Amoroso. 2011. Field Guide to the Pitcher Plants of the Philippines. 60p. Redfern Natural History Productions Ltd., Poole, Dorset, UK.
Pelser, P.B., J.F. Barcelona, & D.L. Nickrent (eds.). 2011 onwards. Co’s Digital Flora of the Philippines. http://www.philippineplants.org.