Terrestrial climber to several metres high. Stem terete or obtusely trigonous, climbing stem 4-5 mm diam., internode length 3.5-6 cm, stems of short stems and rosettes 2-3 mm diam., internodes 2-6 mm long. Leaves chartaceous, sessile, those of short stems and rosettes oblanceolate or oblong-elliptic, 6-7.5 by 1.7-2.5 cm, apex acute, not peltate, base amplexicaul, subperfoliate, more or less auriculate, not conspicuously decurrent; leaves of climbing stems oblong-elliptic, rarely lanceolate, 5-7(-15) by 1.8-2.5 cm, apex obtuse to acute, base decurrent by 0.5-1.5 cm. Longitudinal nerves 2(-4) on each side of the midrib, in the outer 1/2-1/3(-2/3). Pennate nerves patent, branching, inconspicuous. Lower pitchers narrowly ovoid, 7-11.5 cm tall, 2.1-3.2 cm wide at the base, diminishing gradually to 1.6-2.5 cm wide below the mouth; fringed wings 3 mm wide, fringe elements often in pairs, 2 mm apart, 5-10 mm long, branching dichotomously 1 or 2 times; mouth concave, highly oblique, elliptic, with a long tapered apex that becomes erect, or overarches the rest of the mouth; peristome cylindrical to slightly flattened, 1.5-3 mm wide (excluding teeth), ribs c. 3 mm apart, c. 20 on each side, exaggerated into falcate teeth c. 5 mm high, outer edge entire, teeth recurved, c. 2 mm from peristome to apex, inner edge recurved into the pitcher, c. 7 mm from pitcher rim to the tooth apex, teeth of column dagger-like, descending 10 by 2 mm; lid held horizontally, margins ascending, ovate, 3-3.8 by 1.8-2.8 cm, apex rounded, base subcordate, upper surface with up to 45 multicellular ‘tentacles’ on each side, c. 3 deep around the margin, each 6-8 mm long, often branched, arising from vein ends, lower surface lacking appendages, with sparse and inconspicuous shortly elliptic bordered pits 0.1-0.2 mm broad; spur fasciculate, 5-branched from the base, c. 9 mm long, each repeatedly branched along its length. Upper pitchers subcylindrical, usually slightly ovoid in the lower 1/3, the upper 2/3 cylindrical, or gradually dilating slightly towards the mouth, 7-20 by (1.2-)2-4.5 cm, with fringed wings or with the wings reduced to ridges; peristome with teeth 12-16 by 2-3 mm high, 2.5-6 mm apart. Male inflorescence 8-15 cm long; peduncle 2.4-10 cm long; partial peduncles 1-flowered, c. 22; bracts absent; pedicels 10-15 by 0.1-0.3 mm; tepals elliptic, reflexed, 1.5-2.5 by 1-1.5 mm; androphore 1-2.5 mm long; anther head 0.6-0.8 by 0.8-1.4 mm. Infructescence 8.5 by c. 5 cm; peduncle 6.5 cm long, 2.25 mm diam. at base. Fruits c. 15; valves 19-20 by 3.5-4.5 mm. Seeds filiform, 8 by 0.4-0.6 mm. Indumentum of sessile red glands on stem, lower surface of leaves, outer surface of pitchers, upper and lower lid; outer pitcher arachnoid-tomentose with branched brown, often prostrate and crinkled hairs 0.3-1.5 mm long; inflorescence from peduncle to lower surface of tepals sparsely to moderately densely covered with appressed brown hairs c. 0.5 mm long; ovary densely hairy with golden-brown appressed hairs. Colour of pitchers pale green blotched/reticulated purplish red with mauve wings; peristome red or black, teeth black or greenish white; male flowers green, tepals becoming red.
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