Glabrous. Leaves opposite; lamina oblong, 14-20 by 6-11 cm, truncate to slightly cordate at the base, sessile or subsessile, rounded or obtuse at the apex, dull on both sides; venation pinnate with the midrib and main laterals distinct above and only the midrib prominent below. Inflorescences at the nodes, a raceme of many flowers in oblique whorls; axis 140-190 mm long, 3-5 mm thick, with a non-flowerbearing basal part 25-50 mm long, lacking a sterile tip; pedicels 1-3 mm long, 1-2 mm thick. Corolla in the mature bud 60-95 mm long, gradually widened upwards, slightly winged and narrowed to a short neck in the upper part, cylindric and obtuse at the apex, red with a yellowish green band in the widest part; tube in the open flower 50-80 mm long, deeply split on one side, with the lobes reflexed 3-4 mm higher. Anther 7-10 mm long, obtuse, about twice as long as the free part of the filament. Fig. 46c.
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