Terrestrial or epiphytic climber. Stems terete. Leaves petiolate, lamina linear, up to 28 cm long, 6 cm wide, apex acute or obtuse, base attenuate; midrib on lower surface with appressed hairs; petiole canaliculate, up to 7 cm long, winged. Lower pitchers 26 cm long, 5.5 cm wide; basal part ovoid, variously inflated, becoming cylindrical and infundibular towards the pitcher opening. Peristome cylindrical, up to 1.2 cm wide, yellow, red or purple; lined with ribs to 1 mm high, 1.5 mm apart, may be expanded at the sides of the pitcher mouth; inner surface without conspicuous teeth. Upper pitchers up to 12 cm tall, 4.5 cm wide, wholly infundibular, strongly elongated; wings reduced to narrow ridges. Lid elliptic-ovate, 4.5 cm long, 4 cm wide, both the upper and lower surfaces may be yellow, orange, or red, often with darker blotches; the lower surface with basal ridge and appendage; spur unbranched, 1.2 cm long.
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