This activity has long been on my to-do list; I've read stories about it for years. Brill is a font of amazing information and stories about the plants and herbs that are right under our noses. I still wouldn't really feel confident about going around and picking things out of the ground to eat or to cook with, but he makes it seem like it could really be possible to find some great culinary and/or medicinal items in and around us in our local parks. There were several folks who were repeat customers on his expedition.
He hunted down the local apples that we gathered and American hackberries that we sampled. Some impressive poison ivy was pointed out to us, from which we were told to stay away. At the same time, we were shown the plant that would take away the ivy's itch, should we get too close to it. I never knew that a sprinkling of epizote on cooked beans could cure farting, but I do after yesterday's tour. I also discovered that sorrel in several forms grows in Central Park and, when tender, is great in salads and soups.
*Caveat - This was my first time on the tour so I tried to take as many notes as possible and have tried to be accurate regarding the plants we saw; however, no one should just pick what he or she finds on the ground and eat it without being absolutely certain of what it is. My notes should not be taken as a guide to your own foraging efforts.