The Flower Kingdom adventures of Super Mario Bros. Wonder have entertained fans of classic side-scrolling platforming action, but some veteran Mario aficionados were concerned that Prince Florian might have held a secret that would be bad news for the high-jumping plumber. Florian is a diminutive creature with a body similar to a Wiggler, the caterpillar-like entities introduced in Super Mario World. Wigglers are shown with flowers growing from their heads, which makes Florian’s design a good fit for the royalty of the Flower Kingdom. However, the Flower Kingdom appeared much earlier in an obscure chapter of Mario’s history, and that connection could have set Prince Florian up as a potential rival.
https://screenrant.com/super-mario-bros-wonder-florian-haru-flower-kingdom/