Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Lamiidae Takht. ex Reveal (1993) see [unranked] lamiids
       Superorder Lamianae Takht. (1967) see Order Lamiales Bromhead (1838)
         Order Scrophulariales Lindl. (1833) see Order Lamiales Bromhead (1838)
           Family Scrophulariaceae Juss. (1789), nom. cons. - figwort family
             Subfamily Scrophularioideae Beilschm. see Tribe Scrophularieae
               Tribe Collinseae nom. null. see Tribe Collinsieae Meisn. (1840)
                 Genus Tonella Nutt. ex A.Gray (1868)