I would say Brassica Juncea (Mustard greens) https://www.google.ca/search?q=red+mustard+greens&source=lnms&tbm=isch&sa=X&ei=Pn1jVd7UJ8zSoATjsIPQBw&ved=0CAcQ_AUoAQ&biw=999&bih=630#imgrc=_