rheum rhabarbarum

Noun rheum rhabarbarum has 1 sense

• rheum rhabarbarum(n = noun.plant) garden rhubarb, pie plant, rheum cultorum, rheum rhaponticum - long cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves;
is a kind of rhubarb, rhubarb plant