Branchlets glabrous or minutely puberulent. Leaves: petiole 5-12 mm long; blade elliptic, 5.7-13.5 by 1.5-6.1 cm, 2.2-4.1 times as long as wide, apex acuminate, base cuneate to obtuse, 12-23 pairs of secondary veins, not particularly distinct from tertiary venation, prominent above and beneath, glabrous above and beneath, punctate beneath. Inflorescence mostly axillary robust cymes, sometimes also terminal, glabrous or minutely puberulent, 3.9-13.2 cm long; pedicels 1.9-4 mm long, bracteoles at base. Sepals ovate, 0.9-1.6 by 0.7-1.2 mm, 0.8-1.6 times as long as wide, apex obtuse, glabrous, ciliate. Corolla yellow; tube 3-3.7 mm long, 0.8-1.1 times as long as lobes; lobes strap-shaped, falcate, 3-4.6 by 0.9-1.1 mm; glabrous outside, pubescent on inside of lobes, glabrous or sparsely pubescent at top of tube inside. Stamens inserted at 0.6-0.9 mm from corolla base which is 0.2-0.3 of tube length; anthers 1.3-1.6 by 0.5-0.6 mm. Disk annular or 5-crenate, 0.2-0.4 mm long, 0.3-0.6 times as long as ovary. Ovaries 0.6-0.7 mm long; style and style head 1-1.2 mm long. Fruit narrow dagger-shaped; c. 8.9 by 0.6 cm. Seeds not seen.
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