I ate Poke, too. (Still do.)
Polk salad and Pokeweed are different weeds, er, plants. :') Not sure what Polk salad looks like, not too sure it grows up here. Pokeweed though is semi-edible (small young shoots only), and is (IMHO) gorgeous. Herbaceous, not woody, so it croaks off with the frost, then regrows the next year. S'cool.