platycodon
/ˌplatɪˈkəʊd(ə)n/ /ˌplatɪˈkəʊdɒn/noun
A perennial plant, Platycodon grandiflorus (family Campanulaceae), native to China and Japan, grown for its light blue saucer-shaped flowers (balloon-shaped when in bud).
Origin
Mid 19th century. From scientific Latin Platycodon, genus name from platy- + ancient Greek κώδων bell.