Branchlets glabrous. Leaves: petiole 4-9 mm long; blade elliptic to ovate, 2.6-8 by 0.6-2.6 cm, 1.9-5.5 times as long as wide, apex acuminate to caudate, base cuneate to rounded, 9-18 pairs of secondary veins almost perpendicular to midrib, somewhat obscure, glabrous above and beneath. Inflorescence paniculate, glabrous, 3.2-10 cm long; pedicels 2-7.5 mm long, bracteoles at base. Sepals ovate, 0.5-0.9 by 0.4-0.7 mm, 0.8-1.8 times as long as wide, apex rounded, glabrous. Corolla yellow; head rounded in bud, not twisted; tube 1.1-1.8 mm long, 0.8-2.5 times as long as lobes; lobes rounded or obtuse, 0.7-2.1 by 0.7-1 mm; glabrous outside, pubescent inside. Stamens inserted at 0.2-0.5 mm from corolla base which is 0.1-0.2 of tube length; anthers 0.9-1.1 by 0.4 mm. Disk 5-crenate or 5-dentate, 0.4-0.5 mm long, 1-1.7 times as long as ovary. Ovaries 0.3-0.4 mm long; style and style head 0.8-1 mm long. Fruit unknown.
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