I am pretty sure all of Florida. Probably up into Georgia and possibly Louisiana.
Only palm I know of too eat like that.
Dont feel bad. I cant tell an apple tree from an orange tree.
These are easy too spot. They look like a pineapple with palms when small.
Most of the survival shows concentrate on direction, water, keeping warm and dry, meats, reptiles, fish, etc..
I would guess they tend too stay away from edible plants, due too legal issues.
Eating the wrong plant will kill someone quick, or slow.
They had a documentary on the famous "Donner party" disaster. A survivalist went too the site and showed what was there for the people too eat, if they only knew how and what. They could have survived the winter.
If anyone has a plant or edible growing product in their A.O. feel free too post away. If it is o.k with the mods?