Trees or shrubs, to 15(-25) m tall; bark grayish brown, thin, with many shallow fissures; branches flattened to subquadrangular, puberulent to hirtellous or glabrescent. Petiole 3-20(-30) mm, glabrous or hirtellous or puberulent; leaf blade drying papery or thinly leathery, oblong-lanceolate, elliptic-oblong, or lanceolate, 7-16(-21.5) × 2.5-6(-11) cm, both surfaces glabrous or sparsely puberulent to hirtellous abaxially, base acute to cuneate, apex obtuse to rounded or rarely acute; secondary veins 7-11 pairs, usually with crypt domatia, these best developed in proximal part of blade; stipules 10-20 mm, glabrous to puberulent or hirtellous, obtuse to rounded. Inflorescences 5-23 × 5-18 cm, densely hirtellous to puberulent; bracts triangular, 0.5-3 mm; pedicels 1-8 mm. Calyx densely sericeous; ovary portion ellipsoid, 1.5-2 mm; limb 1-2 mm, sparsely puberulent, partially lobed; lobes ovate-triangular, 0.5-1 mm. Corolla white, pale yellow, or pale pink, glabrous to puberulent outside; tube cylindrical, 5-9 mm, glabrous inside; lobes lanceolate, 3-4(-6) mm, acute. Capsules 8-30 × 3-8 mm, stiffly papery to woody, puberulent or pilosulous to glabrescent; seeds 3-10 × 1.6-3.7 mm (including wing). Fl. Jun-Feb.
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A shrub or small tree. It can be 8 m tall. The flowers are white to pink. They are in groups. They have a scent.
It is a tropical plant. It grows in the cool, humid rainforests in the Andes. It is best in well drained soils. It can grow in light shade. It can tolerate temperatures down to 7°C. It grows between 400-3,000 m above sea level. It won't grow in soils exposed to fire. It suits hardiness zone 10-12.
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Cool, humid, mountain regions. Andean rainforests.