Symphytum tuberosum, the tuberous comfrey,[1][2] is a species of Symphytum in the family Boraginaceae.
^USDA, NRCS (n.d.). "Symphytum tuberosum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 7 December 2015.
^BSBI List 2007(xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
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Symphytumtuberosum, the tuberous comfrey, is a species of Symphytum in the family Boraginaceae. Tuberous comfrey flowers from April to June, however it...
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