Terrestrial climber to c. 5 m (?) tall. Stem 2-ridged, 5-8 mm diam., internodes of climbing stems 1.5-6 cm long, axillary buds spike-like, 6-10(-20) by 1.5 mm, inserted 3-5(-10) mm above the axil. Leaves of the climbing stems coriaceous, petiolate, blade oblong-elliptic, 8-13(-20) by 3-4.5(-7) cm, apex acute to obtuse, not peltate, base attenuate, petiole winged, 4.2-8.5 cm long, wings c. 4 mm wide, clasping the stem for 1/2 its circumference, abruptly decurrent as two low ridges to the node below. Longitudinal and pennate nerves inconspicuous. Lower pitchers cylindrical, slightly constricted below the mouth, 10-18 by 2-6 cm, with fringed wings in upper 2/3, 2 mm wide, fringe elements 3 mm long; mouth ovate, oblique, concave; peristome rounded in transverse section, 2-5 mm wide at front, expanded, and sinuate towards lid, then to 25 mm wide; lid subtriangular, to 4.5 by 2 cm, apex acuminate, base truncate to auriculate, with broad, rounded lobes, lower surface with basal appendage hooked, apical appendage filiform, midline and appendages with large, elliptic, bordered glands to 2 by 1 mm, the lid blade with numerous small glands, margin irregular, sinuous. Upper pitchers gradually originating from tendril, with a wide tubular curve which expands rapidly at 1/2-3/4 overall height to form a broad bowl, which is sometimes shortly contracted immediately below the peristome; to 11 by 8 cm overall, ventral ridges parallel in lower curve, divergent above, mouth horizontal, straight, rising abrubtly at the rear and forming a 1-3 cm long, vertical, acuminate column, peristome flattened above, sharply curved at outer edge, broadest on inner surface, 0.2-0.4 cm broad at front 0.8 cm towards column, ribs 0.25-0.5 mm apart, fairly conspicuous, outer edge often sinuate immediately adjacent to column, inner edge entire; lid hastate, to 8 cm long, 1 cm broad in middle, 2.5 cm broad at base, basal lobes rounded, apex obtuse to abruptly rounded, margin sinuate; lower surface with basal appendage hook-shaped, to 8 mm long, apical appendage filiform, to 12 mm long; glandulation as in lids of lower pitchers; spur to 10 mm, inserted 10 mm from lid, bifurcate at tip or entire. Unopened pitchers laterally compressed, with a prominent bulge at the dorsal end with spur upright and bifurcation closed. Male inflorescence 30 by 2.5 cm; peduncle 11 cm long, 3 mm diam. at base; partial peduncles 2-flowered at base, 1-flowered at apex, 30-40, c. 4 mm long; bracts absent; pedicels c. 10 mm long; tepals elliptic, c. 4 by 2 mm; androphore 4 mm long; anther head 1 by 1.5 mm. Fruit and seed unknown. Indumentum reddish brown, on all surfaces, including stem, underside of lid and leaf blade surfaces, of short tufted hairs to 0.05 mm long and simple hairs to 0.8 mm long, especially dense and longer on tendril, midrib, lid and spur where up to 1-2 mm long. Colour of leaves dark green, tendrils reddish, pitcher yellowish green or white below becoming blotched with red above, generally more darkly pigmented within, peristome with numerous narrow streaks of red and green, lid green above, with red blotches below; flowers red; indumentum maroon.
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