Flowers in frontal view in natural habitat of Solenopsis bivonae subsp. bivonae (A), S. bivonae subsp. madoniarum (B), S. bivonae subsp. peloritana (C), S. bivonae subsp. brutia (D), S. bacchettae (E) and S. meikleana (F). Photographed by Salvatore Cambria (A–C, E, F) and Lorenzo Peruzzi (D).

 
 
  Part of: Brullo S, Brullo C, Cambria S, Tomaselli V, Crisafulli A, Siracusa G, Minissale P, del Galdo GG (2023) Taxonomic and ecological remarks on Solenopsis bivonae species complex (Campanulaceae). PhytoKeys 229: 77-111. https://doi.org/10.3897/phytokeys.229.104324