Large woody climber to 30 m. Branches glabrous, lenticellate. Leaves: petiole 1.8-5 cm long; blade ovate, elliptic or obovate, 10.5-42 by 6.6-24 cm, 1.6-2.1 times as long as wide, apex short acuminate to rounded, base obtuse to rounded, thickly coriaceous, brown velvety or smooth beneath, 7-15 pairs of secondary veins at 50-70°, ascending to and reaching margin, tertiary venation almost perpendicular and connecting between secondary veins. Inflorescence axillary; peduncle shorter than subtending petiole, robust, 1.5-5.5 cm long; 12-25 flowers per inflorescence; axes glabrous or puberulent; pedicel 2-5 mm long. Sepals ovate, very thick, 1.5-2 mm long, lobes 1-2 by 1.5-2 mm, 0.7-1 times as long as wide, apex rounded, glabrous or weakly puberulent, weakly ciliate. Corolla yellowish white; tube cylindrical, 3-6.5 mm long, outside glabrous, inside puberulent; lobes 4-11 mm long, oblong, glabrous or ciliate. Stamens inserted at c. 2.1 mm from corolla base which is 0.42 of tube length; filaments c. 0.8 mm long; anthers c. 1.6 by 0.6 mm. Ovary c. 0.7 mm; style c. 0.5 mm long, not impressed on ovary; style head c. 0.5 mm long, apex 0.6 mm long. Fruit ovoid, 8-10 by 6-7 cm. Seeds c. 5.5 by 4 cm.
Home