Which has smaller flowers, Campsis or Kalmiopsis?
Campsis Campsis (trumpet creeper, trumpet vine) is a genus of flowering plants in the family Bignoniaceae, native to woodland in China and North America. It consists of two species, both of which are vigorous deciduous perennial climbers, clinging by aerial roots, and producing large trumpet-shaped flowers in the summer. They are hardy but require the shelter of a warm wall in full sun.
Keckiella cordifolia Keckiella cordifolia (formerly "Penstemon cordifolius") is a species of flowering shrub in the plantain family known by the common name heartleaf keckiella. It is native to the coast and coastal mountains of southern California and northern Baja California, and it is a resident of chaparral and coastal woodland plant communities.