Which floatingheart species is known to occur only in the western panhandle of Florida and features leaves that are smooth underneath?

The Little Floatingheart is the species that is specifically known to inhabit the western panhandle of Florida and is characterized by its smooth leaves on the underside. This distinctive feature is an important identifying characteristic that helps differentiate it from other floatingheart species. The range of the Little Floatingheart is limited, which is why its presence in this geographic area is significant for both ecological studies and for those involved in aquatic weed control. Correct identification is crucial in these contexts, as the management practices may differ between species and their respective habitats.

Other species mentioned in the options may not exclusively occur in the western panhandle or have different leaf characteristics, making them less relevant to the specific question regarding the unique features of the Little Floatingheart. Understanding the regional accuracy and specific traits of various aquatic plants is essential for effective management and control strategies in Florida's aquatic ecosystems.