Is Rheum rhaponticum Edible? Understanding False Rhubarb's Toxic Leaves
                                
                                
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                                    4 min read                                
                            
                                While most people are familiar with common culinary rhubarb, its close relative *Rheum rhaponticum* has a more complex edibility profile. The key difference lies in the highly concentrated oxalic acid found in its leaves, which are poisonous, whereas the stems are safe for consumption.