Squincio Lake is located on the border between Tuscany and Emilia Romagna, near the Passo del Lagastrello that's not to be confused with the big artificial lake, Paduli. Though the area boasts few plant species due to the relatively small size of the humid area, there are some that are interesting and rare - in particular a type of buttercup and the bulbous reed. The most beautiful flowers are the kingcup, the three-leafed fibrin, the veronica and the water mint.
There are other small lakes located around the Passo del Cerreto: the Lungo and the Padule. Of the two, the first has a less prestigious flora and is characterized by common plant species in the reed family. The nearby Padule lake is larger and has a more diverse flora, including species present at the Squincio Lake as well as many others. There are several willow species and interesting sphagnum that host a rare insect-eating plant called a sundew.