Shrub to 4 m high. Branchlets terete, glabrous. Leaves: rachis 18-25 cm, glabrous, glands bowl-shaped, with a distinct cavity, 3-4 mm in diameter; pinnae 2 or 3 pairs, 6-13 cm, sharply ribbed and with two narrow, 0.5-2 mm wide wings in the distal part, glabrous, glands bowl-shaped, c. 2 mm in diameter; leaflets 2-4 pairs per pinna, opposite, chartaceous, drying light green, unequal-sided, obovate-elliptic to lanceolate, 8.5-14.5 by 3.3-5 cm, base ± symmetrical, broadly cuneate to rounded, apex strongly acuminate; both surfaces glabrous, except for the main vein; principal lateral veins 8-11 per leaflet-half, arching, reticulation very dense, delicate on both surfaces. Inflorescences cauliflorous, glabrous, consisting of unbranched racemes c. 1 cm long, floral bracts eglandular, 1.5-2 mm, pedicels 4-6 mm, glabrous, striate. Flowers tetramerous, bisexual, green. Calyx narrowly campanulate, inflated at the mouth, c. 12 mm, glabrous; teeth irregular, broadly acute to obtuse, c. 2-3 mm. Corolla narrowly funnel-shaped, 25-35 mm, glabrous; lobes narrowly oblong, acute, 10 mm. Stamens white, 50-60 mm, tube not seen. Ovaries 2 or 3, glabrous. Pod and seeds unknown.
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