Here is a great article on foraging for greens in Washington DC, by NPR. The article discusses the abundance of foods available all around us. I knew about Vietnamese Americans who would be seen foraging along the roadside in Lincoln, NE and I thought that was really cool. Check out this healthy option, but don't go trying it until you know exactly what you are doing first.
Can we come up with a tasty, healthful salad, just by foraging the urban neighborhood around NPR's Washington, D.C., office? That would be the ultimate in locally grown food. But most of us don't know the first thing about foraging wild greens.