en.wikipedia.org/wiki/Rheum rheum English English English Rheum English English rheum English http://en.wikipedia.org/wiki/Rheum English English Rheum English view article Rheum - Wikipedia, the free encyclopedia Rheum More on Rhubarb (Rheum) in Wikipedia rheum rheum Rheum English Wikipedia English English English English English Rheum http://en.wikipedia.org/wiki/Rheum rheum Rheum - Wikipedia, the free encyclopedia English