Glabrous. Leaves quaternate; lamina elliptic to ovate, 9-25 cm long, (3—)7—18 cm wide, truncate or cuneate at the base to a thick winged petiole 10-35 mm long, acuminate and obtuse at the apex, dull on both sides, darker and/or lustrous above; venation pinnate but somewhat flabellate with the midrib and the main laterals distinct and the midrib prominent below. Inflorescencess at the nodes, a raceme of 10-32 spirally arranged triads with the central flower sessile and the lateral flowers obscurely pedicellate; axis deflexed, 30-70 mm long, 3-5 mm thick, widened distally, with the triads crowded in the distal c. 6 mm; peduncles 1.5-2.5 mm long; pedicels c. 0.2 mm long; outer bracts ovate, c. 7 mm long, acuminate; inner bracts narrower, c. 9 mm long. Corolla in mature bud 6-merous, 32-75(-80) mm long, gradually widened upwards, narrowed to a neck, weakly clavate and acute at the apex, red, usually pale yellow or green above; tube in the open flower 18-50 mm long and the lobes reflexed 6-18 mm higher. Anther c. 4 mm long, obtuse, almost twice as long as the free part of the filament. Fig. 28.
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