Platycodon grandiflorus (from Ancient Greek πλατύς "wide" and κώδων "bell") is a species of herbaceous flowering perennial plant of the family Campanulaceae, and the only member of the genus Platycodon. It is native to East Asia (China, Korea, Japan, and the Russian Far East). It is commonly known as common balloon flower or balloon flower (referring to the balloon-shaped flower buds), and, depending on the region, Korean bellflower, Chinese bellflower, or Japanese bellflower.