That's only a small area amongst most of Florida having it, I would be surprised if it wasn't there too.
https://www.google.co.uk/maps/...
There are other Cnidoscolus species but this one matches well.
There's only two species in florida which are the same, one is a variety. They are Cnidoscolus urens and Cnidoscolus urens (L.) Arthur var. stimulosus (Michx.) Govaerts.
http://luirig.altervista.org/f...
Both are accepted.
http://www.theplantlist.org/tp...
Cnidoscolus urens is different ..
http://herbaria.plants.ox.ac.u...
I checked on the Atlas of Florida Plants and it only gives the one species.
http://florida.plantatlas.usf....
