Terrestrial shrub or climber 0.7-2 m tall. Stems terete or 3-or 4-angled, 0.8-0.9 cm diam., internodes 1-5 cm long in climbing stem. Leaves thinly to thickly coriaceous, sessile, linear-lanceolate, linear-oblong or slightly spathulate, 10-21 by 2.4-3.8(-5) cm, apex acute to rounded, often slightly peltate, base gradually or barely attenuate to the stem, decurrent as narrow wings 2-3 mm wide for 2/3, to a whole internode and converging towards the opposite surface of the stem. Longitudinal nerves 5 or 6 on each side of the midrib, in the outer 1/2-2/3 of the blade. Pennate nerves not conspicuous. Lower and upper pitchers apparently similar, shortly ovoid-cylindrical, to 20(-25) by 12(-15) cm, fringed wings 2-3 mm wide in the upper 2/3 of the lower pitchers on-ly, absent in the upper pitchers; mouth ovate to suborbicular, horizontal to slightly oblique, abruptly rising at the rear into a short, broad neck c. 2 by 2 cm; peristome slightly rounded, 20-30 mm broad, the ribs 1 mm high, 2 mm apart, outer margin undulate, with 6-8 shallow lobes; inner margin recurved, bearing teeth 3-4(-5) mm long and up to 5 times as long as broad; lid held over and parallel with mouth, ovate, 8-10.5 by 6.5-7.1 cm, apex rounded or obtuse, base shallowly cordate; lower surface lacking appendages, glands few, absent from the midline, the central area and the marginal area, 35-60 in total, sparsely scattered, pit-like, transversely elliptic, 0.8-2.1 mm long; spur filiform, 2-3 by 0.5 mm. Male inflorescence c. 32 cm long, c. 3 cm at the widest point; peduncle 18 cm long, 0.6 cm diam. at the base; partial peduncles 1-flowered; bracts highly reduced; pedicels 12-14 mm long at the base of the inflorescence; tepals oblong, 3 mm long, obtuse; androphore c. 5 mm long. Fruit 18-22 by 3-4 mm. Seeds filiform, 8 mm long. Indumentum of sessile red glands 0.1 mm present only on the densely appressed stellate-hairy inflorescence; androphore puberulent. Colour of pitchers green or yellowish to dull orange or pink with a few red blotches 5-10 mm diam. in the upper third; peristome bright glossy red to purplish black; lid yellowish orange or pale green suffused with pink above.
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