Acorn can be leeched of tannin (the bitter stuff)by immersing them in a running stream for several days then roasting them by a fire. They can they be eaten or ground into meal or flour. Prickly-pear abounds in the south and can be eaten as a vegatable and the fruit is also eatable (watch the pricks). Rose-hips make a tasty tea that is high in C. Black walnut hulls or crushed china berries make a good poison for catching fish. Ducks and other waterfowl can often be caught on shallow water trot-lines set in feeding areas and baited with corn. Rail road tracks are a good place to scavenge grain or fresh road kill. cat-tail roots can crushed and the starch extracted to eat. Soy beans have thousands of ways to prepare them into something resembling food. Poke weed can be cooked and eaten but will do nasty things to you if eaten raw. all eggs can be eaten, bird, snake, turtle, gator, possum. Grits will kill fire ants. One grit tree can feed hundreds of hungry rednecks for weeks.