Fast-growing, medium-sized, deciduous tree with clusters of showy trumpet-shaped flowers from late spring to fall. Chitalpa is a sterile hybrid between Catalpa bignonioides, common catalpa, and Chilopsis linearis, desert willow. It combines the larger flowers of the former and the drought-tolerance of the latter. Since the flowers are sterile, they do not form seed pods or fruit. There are two popular cultivars, ‘Pink Dawn’ with lavender-pink flowers and ‘Morning Cloud’ with white flowers.