Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Symphytum caucasicum M. Bieb., Fl. Taur.-Caucas. 1: 128. 1808
Euro+Medendemic: ArmenianativeA; Crimeanative: doubtfully nativeB,C,D; GeorgianativeE,F; Great BritainnaturalisedG; Ukraine, with CrimeanativeH
Bibliography
A.Takhtajan, A. L. 1980: Flora Armenii 7. – Erevan: Armenian Academy of Sciences
B.Fedorov, A. A. 1981: Flora partis europaeae URSS 5. – Leningrad
C.Greuter, W., Burdet, H. M. & Long, G. 1984: Med-Checklist 1. – Genève & Berlin
D.Prokudin, J. N. 1987: Opredelitel’ vysših rastenij Ukrainy. – Kiev: Naukova Dumka
E.Davlianidze, M. T., Gvinisashvili, T., Mukbaniani, M. V., Jinjolia, L. & Jugheli, T. 2018: Nomenclatural Checklist of Flora of Georgia. – Tbilisi: Ilia State University, Institute of Botany
G.Stace, C. 2010: New Flora of the British Isles, ed. 3
H.Mosyakin, S. L. & Fedoronchuk, M. M. 1999: Vascular plants of Ukraine. A nomenclatural checklist. – Kiev: M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine