What are some ethnographic examples of wild greens being used as food?

Question

In what I've read of food plants used by indigionous cultures I usually hear of roots, fruits, seeds and nuts but almost never greens, I know they don't have the same caloric punch as other foods but presumably they knew edibles greens and used them to some extent. Are there examples of indigionous australians and americans using greens at all?

Answer 1

In addition to the roots, fruit, and nuts, the indigenous people ate the leaves from the trees as well.