Here’s what foragers know: Most of what grows is neither delicious nor toxic. There’s a whole world between what we call the choice edibles—the hazelnuts and porcini and black raspberries—and, say, the destroying angel mushroom that will shut down all your organ systems after a single nibble. You can eat the grass, the lichen, the inner bark of most trees, a thousand kinds of leaves. Not that you would, but you could.
