Originating in southern and central China, Buddleja lindleyana (commonly called Lindley’s butterfly bush) is a semi-evergreen, arching shrub that typically forms a loose, fountain-shaped mound about 6–10 ft tall and wide under warm conditions. It has naturalized in parts of the southeastern United States. Plants flower on the current season’s growth, usually late summer into fall, producing slender, drooping racemes 4–10 in long. The individual flowers are distinctive: a very long, narrow tube ending in a small four-lobed limb, lilac to violet, often borne secund (all to one side) along the rachis as seen in the photo; the calyx is small, and the corolla tube can approach an inch, giving the inflorescence a bottle-brush look. Leaves are opposite and simple with short petioles, and young stems can be slightly angled. In colder areas it resprouts from the base after freeze dieback. Photographed in Florida.