A small deciduous tree 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. |