Description:
Terrestrial climber. Stems branched, up to 3 m tall, terete, up to 4 mm in diameter. Leaves petiolate, lamina linear, up to 16 cm long, 2.5 cm wide; apex acute; base broadly attenuate; longitudinal veins 2 on each side of the midrib. Lower pitchers up to 10 cm tall, 3 cm wide; basal part inflated and ovoid; wings 4 mm wide, fringed with filaments up to 3 mm long. Peristome flattened, up to 4 mm wide, yellowish-green, sometimes flecked with dark red coloration, elevated towards the rear of the pitcher opening to form a neck below the lid; lined with very fine ribs up to 0.1 mm high spaced up to 0.1 mm apart; inner surface without prominent teeth. Upper pitchers up to 10 cm long, 4 cm wide, wholly infundibular, yellowish-green, sometimes with reddish flecks near the mouth; wings reduced to ridges; pitcher lid cordate, up to 3.5 cm long, 4.0 cm wide, lower surface with basal ridge and appendages.
References:
Fernando, E.S., V.B. Amoroso, D.N. Tandang, C.I. Banag, A.B. Lapis, W.S. Gruèzo, F.P. Coritico, F.A. Pollisco Jr., A.M. Palijon, M.D. Ching, F.P. Lansigan, C. Garcia-Francisco, N.M. Lita, A.M. Tagtag, & J.L. De Leon. 2021. Threatened Plants of the Philippines. 147p. Biodiversity Management Bureau, Department of Environment and Natural Resources (DENR), Quezon City, Philippines. ISBN 978-621-96498-0-3.
Gronemeyer, T., F. Coritico, A. Wistuba, D. Marwinski, T. Gieray, M. Micheler, F.S. Mey, & V. Amoroso. 2014. Four new species of Nepenthes L. (Nepenthaceae) from the central mountains of Mindanao, Philippines. Plants 3: 284–303.
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.