Tree or climber, 3-10 m high. Branches with a grey to tawny bark, tomentose while still herbaceous. Leaves: petiole 1.2-6 cm long; blade elliptical to ovate, 7-22 by 4-12 cm, margin entire to wavy, base rounded-decurrent to rounded or subcordate, apex obtuse to acuminate, nerves 4 or 5 on each side, darker than surroundings when dry on lower surface, glabrous on the upper, tomentose on the lower surface. Inflorescence paniculoid, with 10-12 flowers subcapitate at end of (up to 5) branches, axillary, on a 2-3 cm long peduncle; pedicels 1-3 mm long. Calyx campanulate, 6-7 mm long, c. 4 mm wide in flower, broadly cup-shaped, 8-9 mm long and up to 15 mm wide in fruit, tomentose, with 5 triangular lobes in flower, that become broadly triangular to indistinct in fruit. Corolla cylindrical with reflexed lobes, tube shorter than calyx, transverse diameter c. 7 mm, lobes broadly rounded, c. 4 mm long. Stamens with short filaments, included in the corolla. Fruit ovoid, rostrate, 15-18 by c. 10 mm.
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