Glabrous except for the inflorescence and ovary shortly brown tomentose. Leaves opposite; lamina ovate, 6-15 by (2-)4-7 cm, cuneate at the base, sessile or with a short obscure petiole, acuminate and acute at the apex, dull on both sides; venation distinct on both sides. Inflorescences several to many at the nodes; pedicel (l-)2-3(-4) mm long, not articulate; bracts 3,1-1.5 mm long, connate at the margins to a shallow 3-lobed cup. Corolla in mature bud 24-32 mm long, inflated towards the middle, weakly clavate and acute at the apex, very pale yellow or green below and orange to red above; tube in the open flower 14-18 mm long with the petals reflexed 5-8 mm higher. Anther 2-4 mm long, shorter than or equal to the free part of the filament.
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