If it was growing here in Nebraska, I'd call it Physalis heterophylla:
https://www.google.com/search?...
http://www.missouriplants.com/...
In Florida?
Physalis can be a difficult.genus, I've watched botanists debate the proper ID of a Physalis specimen more times than I care to remember. There is quite a bit of ongoing debate over which species are even legitimate, which is probably why the Plant List describes P. arenicola as unresolved.
