Terrestrial climber 2(-10) m tall. Stem cylindrical, 0.3-0.5 cm diam., sometimes slightly flexuose, internodes of climbing stems 3-9 cm long. Leaves coriaceous, sessile, narrowly oblanceolate to spathulate, basal rosette leaves 20-36 by 2-3.5 cm, apex ± acute, the basal 4 cm abruptly narrower, ± 1 cm wide; climbing leaves 7-17 by 1.2-2 cm, the basal part often ± abruptly narrower or gradually tapered; apex acute, base not decurrent, clasping half the stem circumference. Longitudinal nerves 1 on each side of the midrib near the margin, inconspicuous. Pennate nerves numerous, held at ± 90° from the midrib, not reaching the marginal vein, inconspicuous. Lower pitchers ellipsoid at base, tapering gradually into the cylindrical upper half, 8.5-15 cm long, 3.5-6 cm wide at base, tapering to 2-3 cm wide above, with two fringed wings to 6 mm broad, extending to above the level of the peristome, the fringed elements to 4 mm long; mouth ± ovate, oblique, straight; peristome ± cylindrical in section, 1 mm wide, with fine, closely spaced ribs, 0.1-0.15 mm apart (with a bright white or pale brown band immediately below the peristome composed of densely packed hairs), outer edge entire, inner edge lacking teeth; lid ovate, c. 4 by 3 cm, lower surface without appendages, nectar glands densely packed, elliptic, crater-like, ± 0.3 mm long; spur simple, 1-3(-7) mm. Upper pitchers as lower pitchers but cylindrical to infundibulate, 7.5-12 by 1.2-3.2 cm or flaring from 0.8(-1.8) cm at base to 3.2(-6) cm at apex; with two ridges to 1 mm broad, occasionally with short wings towards the pitcher mouth, and then usually extending to above the level of the peristome, lacking fringed elements. Male inflorescence 11-45 by 3 cm; peduncle 6-13 cm long, 1.5 mm diam. at base; partial peduncles 20-80, (1-or) 2-(or 3-)flowered, (0-)3(-6) mm long; bracts rarely present; pedicels 14-20 mm long; tepals 1.75-2.5 by 1.2-1.5 mm; androphore 0.7-2 mm long; anther head 0.5-1 by 1 mm. Fruits with valves 25-29 by 2-2.2 mm. Seeds fusiform 10-12 mm long. Indumentum a mixture of small, white, 5-8-armed stellate hairs and large patent sparsely branched red, bristle-like hairs 0.3-0.7 mm long; the stem, lower leaf, pitcher and inflorescence subglabrous to tomentellous with dark coppery hairs when young, later inconspicuous or whitish. Colour of pitchers green, red or green mottled with red, with a conspicuous glistening white band below the mouth.
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