Campanula involucrata Campanula involucrata Aucher ex A. DC. in de Candolle, Prodr. 7: 467. 1839–Campanula petraea Kotschy ex A. DC. in de Candolle, Prodr. 7: 467. 1839, nom. inval.1,21. Lammers 2010: World Checklist [Database], 2. nom. inval.