Glabrous. Leaves quaternate; lamina oblong or ovate, 11-27 by 5-15 cm, cuneate to rounded at the base to a petiole 10-20 mm long, acuminate and obtuse at the apex, dull on both sides; venation pinnate with the midrib and the main laterals distinct and the midrib raised below. Inflorescencess many at the nodes and along the internodes and epicortical runners, apparently sessile mostly 2-or 3-flowered umbels; peduncle rudimentary, immersed in the bark; pedicels up to 2 mm long. Corolla in mature bud 5-merous, 12-14 mm long, slightly inflated, obtuse at the apex, yellow below and green above. Anther c. 2.5 mm long, sessile, with a broad flat connective continuous with a flattened filament c. 0.5 mm wide decurrent on the face of the petal.
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