Epiphytic climber. Stems with distinct ribbon-like wings, up to 1.5 cm wide. Leaves petiolate, linear, sometimes spathulate, up to 30 cm long, 7 cm wide; apex acute to obtuse; base attenuate; petiole winged, up to 3 cm wide, strongly decurrent. Lower pitchers up to 18 cm tall, 4.5 cm wide; the basal ¼ is ovoid, swollen, narrowing above this part and becoming cylindrical to infundibular towards the pitcher mouth; wings up to 1.2 cm wide, fringed with filaments to 1 cm long. Peristome light yellow or green, often with bands of red, reddish-brown, or purple, to 1.1 cm wide, cylindrical or flattened, lined with ribs to 0.5 mm high. Upper pitchers up to 32 cm tall, 5.5 cm wide; yellow, green or sometimes orange, often with red blotches; the basal ¼ ovoid and swollen, narrowing above this part and becoming cylindrical to infundibular towards the pitcher mouth; wings reduced to narrow ridges. Pitcher lid elliptic or sub-orbicular, 5 x 4.5 cm; spur 6 mm long, unbranched.
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.