Glabrous. Leaves opposite or rarely ternate; lamina lanceolate to elliptic, 6-12 by 2.5-6 cm, cuneate at the base to a petiole 10-35 mm long, shortly attenuate to acuminate and acute to rounded at the apex, glossy above, dull brown below; venation pinnate with the midrib distinct above and raised below and the laterals indistinct. Inflorescences at the nodes and apparently sometimes terminal, a raceme of 2 or 3 opposite usually sub-capitate pairs of triads with the central flower sessile and the lateral flowers pedicellate; axis 17-50 mm long, subtended at the base by an involucre of short thick triangular erect bracts, thick and dilated upwards; peduncles of the triads 7-17 mm long, thick, not secund; pedicels of the lateral flowers 3-8 mm long, thick. Corolla in mature bud 6-merous, 30-47 mm long, robust, inflated to more than 5 mm wide in the basal part, clavate and obtuse at the apex, yellow or green; petals in the open flower coherent in the lower 2.5-10 mm. Anther 6-8 mm long, obtuse, 1.2-2 times as long as the free part of the filament.
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