rhubarb

• long pinkish sour leafstalks usually eaten cooked and sweetened
• plants having long green or reddish acidic leafstalks growing in basal clumps
• The name of several large perennial herbs of the genus Rheum and order Polygonaceae
• The large and fleshy leafstalks of Rheum Rhaponticum and other species of the same genus. They are pleasantly acid, and are used in cookery. Called also pieplant
• The root of several species of Rheum, used much as a cathartic medicine

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