Liana or scandent shrub, up to 25 m. Stipules triangular, c. 0.5 mm long. Leaves subcoriaceous to coriaceous, broad-elliptic, elliptic, elliptic-or ovate-oblong, slightly obovate, or suborbicular, (5-)8-19.5 by (2.5-)5-10 cm; base cuneate or rounded; apex short-acuminate, sometimes obtuse or rounded; margin entire or remotely crenulate; nerves 5-6 pairs; petiole 0.8-1.25 cm. Inflorescences paniculate or thyrsiform, (3.5-)10-14 cm long, many-flowered. Peduncle (1-)5-5.5 cm. Bracts deltoid, 1/3-1/2 mm long, laciniate. Pedicels 0.5-1.75 mm. Flowers pale yellowish green. Calyx almost divided to the base, lobes suborbicular, rarely deltoid, ⅔-1 mm long, erose or laciniate. Petals obovate-oblong or oblanceolate, 2.5-3 by 1 mm, usually with inflexed margin, slightly curved inward at anthesis, erose. Disk sometimes slightly 5-angular and the angles alternate with the petals. Stamens c. ⅓ mm; filaments usually papillose on the outer and sometimes also the inner surface. Pistil c. 1/3 mm emerging from the disk, triangular, c. 0.75 mm ø at the base. Ovules (4-)6(-7) in each cell. Follicles obovate-oblong, 9-13 by 3.5-4.5 cm; pericarp ± woody, valves c. 1½ mm thick. Seeds (incl. wing) oblong-lanceolate, 6-10 by 1.75-2.75 cm; seed proper elliptic-or ovate-oblong, 2-2¼ by ¾-0.8 cm.
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A climbing shrub. It can be 20 m long. The small branches are woody. The leaves are opposite and 8-20 cm long by 5-10 cm wide. They are oblong or oval and wedge shaped or rounded at the base and tapering to the tip. There are many flowers in a group. The group is 10-14 cm long. The flowers are white or pale yellow. The petals are spoon shaped. The fruit are oblong and 9-13 cm long by 4-5 cm wide. The seeds are oval to oblong and 2.5 cm long.
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