Rewilded plant food in the Cradle of Humanity

Not shure if ai put this in the right spot, but oh well.
On a whim, ai decided to find out what, if any, wild plants are consumed by the people in the place where the genus Homo first came from. Ai first had to find out where that was, exactly, as ai hadnt learned where that was besides “Africa”. Ai think the place where the Australopithecine “Lucy” was found is at least pretty close, so ai searched the internet for articles on wild plant foods in Etheopia and found this:
http://www.africa.upenn.edu/Hornet/famp0300.html
excerpt from article:

[The] Konso people, for example, still have and use a well-developed knowledge concerning which wild-food plants can best provide a dietary supplement in periods of food shortage. Konso people, well known for their hard labour and sophisticated agricultural system (Lemessa, 1999b), have been stricken by drought since 1996. In this period they have faced repeated significant harvest losses and even complete crop failures. Nevertheless, until June 1999, most Konso people managed to cope with these harsh climatic conditions and survived by increasing their consumption of wild-food plants. Damaged, reduced or even lost crop harvests have been partly compensated by the collection of wild-foods. Unfortunately, three severe years with only meagre harvests and yet another harvest failure in 1999, was just too much for many people in Konso, an ecologically fragile area, despite the people�s incredible efforts to protect and conserve the local environment.