Tree or shrub to 12 m tall, to 20 cm dbh. Branchlets with very visible leaf scars, glabrous. Leaves: petiole 1.6-3.8 cm long, glabrous; blade papery to coriaceous, obovate, 7.5-26 by 2.4-5.7 cm, 2.5-5 times as long as wide, apex acuminate, base cuneate, glabrous above and beneath, 12-25 pairs of secondary veins anastomosing into an intramarginal nerve, tertiary venation reticulate. Inflorescence few-to many-flowered, robust, lax, 8.8-35 cm long, glabrous; peduncle 3-20 cm long; pedicels 1.2-4 cm long. Sepals linear, narrowly ovate or narrowly obovate, 8.6-26 by 2.6-5 mm, 2-6 times as long as wide, apex acute or acuminate; glabrous. Corolla white with a yellow eye; tube 13-22 mm long, bulging in the middle, 2-4 mm wide, 1-3 times as long as calyx, 0.5-0.9 times as long as lobes, glabrous outside, pubescent in upper half of tube inside; lobes 12-38 by 8-15 mm, 1.4-3 times as long as wide. Stamens inserted around the middle of corolla tube at 9.5-12.5 mm from corolla base which is 0.5-0.6 of tube length; anthers 2.2-2.4 by 1.3-1.5 mm. Ovaries 1.2-1.7 mm long; style and style head 9.1-12 mm long. Fruit spherical to ovoid; green when mature; 4.7-7.7 by 3.7-6.6 cm.
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