This family consists of trees, shrubs, and climbing vines. Most are tropical but a few species are in temperate zones such is the catalpa tree, trumpet creeper, and the cross vine. The family is characterized by showy, bell-shaped or funnel-shaped flowers with five sepals and five petals fused at the base, two long and two short stamens, and a pistil positioned on a disk above the attachment point of the other flower parts.
