Glabrous except for the young parts shortly and densely tomentose. Leaves subopposite, scattered or spirally arranged; lamina lanceolate to elliptic, 5-8 by 1.5-2.5 cm, attenuate or cuneate at the base to a slender petiole 8-16 mm long, attenuate and acute to shortly rounded at the apex, glossy above, dull below; venation pinnate with the midrib distinct and raised on both sides and the secondary and tertiary veins obscure but numerous and more or less parallel at c. 45° to the midrib. Inflorescences at the nodes and also terminal on short leafy shoots, a 1-to 8-flowered raceme; axis 5-70 mm long, distinctly angular; pedicels 25-40 mm long, strongly winged, widened upwards and 3-5 mm wide at the apex. Ovary narrowly cylindric, 5-7 mm long; calyx limb c. 1 mm long, erect, irregular at the margin. Corolla in mature bud 6-merous, 25-30 mm long, uniformly slender and angular, asymmetrically acute (beak-like) at the apex. Anther c. 10 mm long, acute, slightly shorter than the free part of the filament. Style reaching to the top of the anthers, uniformly slender and 6-angular, lacking a constriction; stigma about as wide a the style.
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