Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
B.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
