Glabrous except for the inflorescence and flowers densely red-brown tomentose. Leaves opposite; lamina broadly obovate to orbicular, 8-13 by 5.5-11 cm, shortly cuneate at the base to a petiole 5-10 mm long, rounded at the apex, dull on both sides; venation pinnate but somewhat curvinerved with the midrib and the main laterals usually distinct on both sides. Inflorescences at the nodes, pedunculate 15-to 20-rayed umbels of triads with the central flowers sessile; peduncle 15-30 mm long, robust, globosely dilated at the apex; rays 6-13 mm long, arising in depressions; pedicels of the lateral flowers 2-4 mm long. Corolla in mature bud 5-or 6-merous, c. 50 mm long, acute or obtuse at the apex, mostly red below and sometimes grading to orange above but with the colour partly obscured by the indumentum. Anther 5-8 mm long, about equal to the free part of the filament.
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