Changes

*Small deciduous trees up to 20 m tall. *Leaves opposite, ovate to broadly ovate, cordate at base, entire or slightly 3-5-lobed, usually tomentose below. *Flowers in 3-5-flowered cymes; calyx campanulate, 5-lobed; corolla zygomorphic, shortly 5-lobed, slightly 2-lipped; stamens 4. *Fruit a dehiscent capsule. *Seed winged.  The trees are easy to propagate by means of cuttings. Their growth is very rapid: mean annual diameter increment is 6.5 cm, and mean annual height increment is 1.72 m. The wood is comparatively soft, white or reddish-brown, and has a beautiful grain. Its air-dry density is about 320 kg/m³.

*M.S.M. Sosef & L.J.G. van der Maesen