from your edited list of grasses, WW comes, Erogrostis
this grass, which bears a big seed head, is one of the staple grains of Ethiopia. its name come from Eros, and seed for it is commonly sold in stores in this country, as an ornimental grass-- Love grass!

the new splinter country (sorry memory fails, but there is a chunk of what was ethiopia, that now calls it self, Er****(sp?) the name of this country is from the grain (a real case of we are what we eat!)