Terrestrial climber to c. 5 m tall. Stem terete, 2-4 mm diam., internodes of climbing stems 2-4 cm long; internodes of short shoots 0.25-0.75 cm long. Leaves coriaceous, sessile, blade oblanceolate to oblong, sometimes narrowly so; leaves of short stems 7-12 by 1.6-2.8 cm; leaves of climbing shoots 7.5-28 by 1.8-3.3 cm, apex shortly acuminate to obtuse, often unequal, not peltate, base decurrent-amplexicaul, extending down the stem by 0.5-1 cm, and clasping it by 9/10 its diameter, the wings short, but 4-6 mm broad, and almost meeting opposite the axil. Longitudinal nerves 3 on each side of the midrib in the outer half, from the leaf base. Pennate nerves apparently few, patent, inconspicuous. Above each inflorescence, the first leaf of the shoot has an ovate blade, 2.5-4 by 0.7-1.3 cm, with an acute to obtuse apex, and lacks a tendril. Lower pitchers ovoid-ellipsoid in the lower half, the upper half subcylindrical, tapering slightly to the mouth, 5-8.5 cm long, 1.5-3 cm wide at the base, 1-1.8 cm wide at the mouth, with two fringed wings, 1-3 mm wide, fringed elements 1-2 mm long, 1-2 mm apart; mouth ovate, oblique, slightly concave; peristome rounded, 0.5-1.2 mm wide, not sinuate, ribs 0.25 mm apart, the inner margin with teeth 0.5-1 mm long; lid ovate-elliptic, 1.4-2.7 by 0.9-2 cm, apex rounded, base truncate to slightly cordate, lower surface lacking appendages, with numerous circular, crater-like glands 0.1-0.15 mm wide, those on the midline, larger, elliptic, to 0.35 mm long; spur c. 5 mm long, entire. Upper pitchers as the lower, but more cylindrical, 7-11.5 by 1.2-2.7 cm; wings sparsely fringed near mouth and to 2 mm broad, or lacking fringed elements, 0.4-0.5 mm broad; mouth, peristome, lid and spur as in lower pitchers. Male inflorescence 9-13 by 1.5 cm; peduncle 2.5-4 cm long; partial peduncles 2-flowered near base, but mostly 1-flowered, 0.5-3 mm long; bracts absent; tepals elliptic, c. 3.5 by 2 mm; staminal column 1.5-2 mm, anther head with anthers subglobular, 1-1.25 mm diam. Fruit valves 35-47 by 3-4 mm. Seeds not recorded. Indumentum as N. hirsuta, but denser and longer, of erect, slightly forward pointing, mostly simple, dark coppery, bristle-like hairs 1.5-4 mm long, persistent and highly conspicuous on the stem, tendril and peduncle, sparser on the lower leaf blade, and shorter and denser on the inflorescence, including the axis, lower tepal surface and staminal column. Upper leaf blade, midrib, upper tepal surface and fruit, glabrous. Colour of stems (when dried) purplish grey; pitchers glaucous green, flecked red, especially inside, peristome red or greenish; flowers red.
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