Rather coarse climbers, glabrous throughout or essentially so. Leaves petiolate, basifixed, entire, ovate to oblong-elliptic, acuminate, obtuse or rounded at the base, 10-20 cm. long, 5-9 cm. broad, rather thickly coriaceous; petioles 2-3 cm. long, bearing 2 thick ocellate glands toward the base; stipules filiform, relatively incon-spicuous. Inflorescences solitary, bearing a single showy maroon, rose, or purple flower; peduncles 5-7 cm. long, jointed directly beneath the flower; bracts free, ovate, 3-6 cm. long, delicately subfoliaceous or somewhat petalaceous. Flowers 8-12 cm. in diameter; sepals narrowly oblong, 4-6 cm. long, rather inconspicuously corniculate; petals narrowly lanceolate, 3-4 cm. long; filaments of the corona in several series, the outermost about half as long as the petals. Fruits broadly ovoid, 10-12 cm. long, greenish yellow.
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A herb. It keeps growing for a few years. It is a climber and has tendrils. The vines have stripes along them. The leaves are leathery and 10-20 cm long. The leaf stalk is 2-4 cm long. There are 2 glands on the leaf stalk. The flowers occur singly in the axils of leaves. They have a strong scent. The flowers are 8-12 cm across. The fruit are green and turn yellow. They are oval. They are 5-6 cm across and 7 cm long. They have a juicy pulp with a sweet flavour.
Rainforests, in areas that do not become inundated. Wet, mixed forest or thickets; at elevations up to 500 metres.
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A tropical plant. It grows naturally in the dryland forests of the Amazon in Brazil.