[[Image:Rhubarb.jpg|thumb|right|300px|Rhubard stalks, the edible part of the plant]]
'''Rhubarb''' is a [[vegetable]]<ref>{{cite book|title=In Season Now|page=56|date=October 2015|issn=1176-8746|publisher=healthy food}}</ref>, often used in [[pie]]s and [[jam]]s, and prescribed medicinally for its [[laxative]] properties. Only the stalks of the rhubarb plant are edible - the leaves are [[poison]]ous.