Dr. Don and Professor Ben talk about the risks of nibbling a rhubarb leaf. Dr. Don - not risky ?? Professor Ben - not risky ?? Randal Oulton on Twitter: “Around this time each spring it’s a thing now for a few voices to chirp up saying rhubarb leaves are okay to eat (screen capped here for instance a UC extension service master gardener, Kate Russell.) Have you ever weighed in on this @benjaminchapman @bugcounter ? https://t.co/CAgt4oUY34” / Twitter Neighbourhood: The Beaches | Destination Toronto Ingestion of rhubarb leaves as cause of oxalic acid poisoning. The chemistry of edible rhubarb - Blundstone - 1964 - Journal of the Science of Food and Agriculture - Wiley Online Library 8 Foods High in Oxalates and Why You Should Avoid It Are Rhubarb Leaves Toxic? | OSU Extension Service “Death From Rhubarb Leaves Due to Oxalic Acid Poisoning” | Jama | JamaNetwork Evaluation of Oxalate Concentration in the U.S. Spinach Germplasm Collection in: HortScience Volume 43 Issue 6 (2008) An ode to rhubarb: Which grows plentifully in Washington and is a great crop for lazy gardeners  | The Seattle Times Don’s bonus links All About Tropical Tubers - How to Buy, Store, and Use Taro Root Calcium oxalate - Wikipedia