Nyman, C.F. (1855), Sylloge Florae Europaeae: 80 [tax. nov.]

Rye, B.L. in Marchant, N.G., Wheeler, J.R., Rye, B.L., Bennett, E.M., Lander, N.S. & Macfarlane, T.D. (1987), Boraginaceae. Flora of the Perth Region 1: 549-550 [secondary reference]

Jeanes, J.A. in Walsh, N.G. & Entwisle, T.J. (ed.) (1999), Boraginaceae. Flora of Victoria 4: 401 [secondary reference]

common name: Blue Comfrey [n/a]

Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - APC [secondary reference]

taxonomic synonym: Symphytum peregrinum Ledeb. legitimate

• APC Dist.: Vic (doubtfully naturalised), Tas (doubtfully naturalised)

de Salas, M.F. & Baker, M.L. (2016), Tasmanian vascular plant census. A Census of the Vascular Plants of Tasmania, including Macquarie Island: 25 [secondary reference]

taxonomic synonym: Symphytum peregrinum Ledeb. legitimate

Baker, M.L., Wapstra, M. & Lawrence, D. (20 August 2019), An annotated census of the lesser-known naturalised plants of Tasmania. Muelleria 38: 34 [secondary reference]

common name: Russian comfrey [n/a]

de Salas, M.F. & Baker, M.L. (14 August 2020), Appendix 1: Changes in the Census between the 2019 and 2020 editions: 1B: taxa that have changed names between 2019 and 2020. A Census of the vascular plants of Tasmania, including Macquarie Island: 140 [unsourced misapplied]

misapplied to: Symphytum officinale L. legitimate

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