1. (noun) long cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves

• pie plant
• rheum cultorum
• rheum rhabarbarum
• rheum rhaponticum

1. (noun) long cultivated hybrid of Rheum palmatum; stems often cooked in pies or as sauce or preserves

• rhubarb
• rhubarb plant