Several Florida Hibiscus species have now been reclassified as members of the genus Muenchhusia. See "The hardy Hibiscus—still hardy, but no longer Hibiscus: Reinstatement of Muenchhusia (Malvaceae: Hibisceae)" by Margaret M. Hanes, Eastern Michigan University &
Russell L. Barrett, Botanic Gardens of Sydney in the Journal of the Botanical Research Institute of Texas.
Hibiscus rosa-sinensis