The roots of T dioica are extremely poisonous but the shoot portion has medicinal properties as well as taken as a leafy vegetable in Bengal but it's bitter to taste we call it " Palta".
Thanks Gurcharan Ji and Tanay for info
Regards
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Dr Balkar Singh
Head, Deptt. of Botany and Biotechnology
Arya P G College, Panipat
Haryana-132103
09416262964