Bidens formosa (Bonato) Sch.Bip., Bot. Voy. Herald [Seemann], 7-8: 307. 1856.

Bas.: Coreopsis formosa Bonato, Pisaura Automorpha e Coreopsis formosa: XXI (–XXVII, pl. II). 1793 [Sep-Oct 1793]. (= Cosmos bipinnatus Cav., non Bidens bipinnata L. ≡ Georgia bipinnata (Cav.) Spreng.).

Note: the binomial of Schultz Bipontinus is to be understood as new combination of the Bonato’s epithet, not as a replaced name of Cavanilles’ one (Art. 41.4. and Ex. 10. of ICN). We are convinced that Schultz knew the reference of Steudel’s Nomenclator Botanicus (1840: 425), who reports Coreopsis formosa Bonato as synonym of Cosmos (sub Cosmus) bipinnatus Cav.