Branchlets densely to sparsely brown tomentose, rarely glabrous. Leaves opposite; petiole 0.8-2.7 cm long; blade papery to coriaceous, ovate to elliptic, 3.1-23 by 1.5-15.5 cm, 1.7-2.7 times as long as wide, apex acuminate, base cordate to rounded, sparsely pubescent on midrib only to densely brown pubescent above and beneath, 5-8 pairs of secondary veins, tertiary venation reticulate or scalariform. Inflorescence of lax axillary cymes, 3.5-13 cm long; brown velutinous; peduncles 1.8-8.6 cm long; pedicels 4-14 mm long. Sepals ovate, 2.2-3.1 by 1.1-1.9 mm, 1.2-2.4 times as long as wide, apex acute to acuminate, brown velutinous. Corolla yellowish green with orangish tube, buds ovoid, lobes slightly overlapping, open corolla salverform or with erect lobes; tube 4.2-5.4 mm long, 1.6-2.1 times as long as sepals, 1.7-5 times as long as lobes; lobes triangular, 1.2-2.7 by 1.2-1.5 mm, apex acuminate; densely pubescent on upper part of tube and lobes outside, pubescent in throat and tube inside. Stamens inserted at 2-2.8 mm from corolla base which is 0.5-0.6 of tube length; filaments curved or straight, pubescent, 1-1.1 mm long; anthers narrowly triangular, tails narrow, 2.9-3.1 by 0.6-0.8 mm, 3.9-5.2 times as long as wide. Disk of 5 separate lobes or fused at base, rounded or notched at apex, 1.6-1.9 mm long. Ovary 0.7-0.9 mm long; style 3-3.4 mm long; style head 0.9-1.3 mm long. Fruit fusiform, glabrous or sparsely pubescent, 7.8-13.7 by 1.3-2 cm. Seeds: grain 10-14 by 1.5-3 mm, coma 1.5-4.1 cm long.
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