Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Asteridae Takht. (1967) see Superorder Asteranae Takht. (1967)
       Superorder Campanulanae Takht. ex Reveal (1992) see Order Asterales Link (1829)
         Order Campanulales Juss. ex Bercht. & J.Presl (1820) see Order Asterales Link (1829)
           Family Campanulaceae Juss. (1789), nom. cons. - bellflower family
             Subfamily Campanuloideae Burnett (1835)
               Tribe Phyteumateae Dumort. (1827)
                 01 Genus Phyteuma L. (1753)
                 02 Genus Physoplexis (Endl.) Schur (1853)
                 03 Genus Asyneuma Grisebach & J. Schenk (1852)
                 04 Genus Campanulastrum
                 05 Genus Hyssaria
                 06 Genus Sergia A.A. Fedorov (1957)
                 07 Genus Petromarula Ventenat ex R.A. Hedw. (1806)
                 08 Genus Cryptocodon A.A. Fedorov, in V.L. Komarov (1957)
                 09 Genus Cylindrocarpa Regel (1877)
                 10 Genus Legouzia see Genus Legousia Durande (1782)
                 11 Genus Triodanis Rafinesque ex E.L. Greene (1894)
                 12 Genus Heterocodon Nutt. (1843)
                 13 Genus Githopsis Nutt. (1843)