Borago L.
Borago is a genus of three species, all native to Eurasia. Two species are cultivated as ornamentals (Richardson 2000, Jäger & al. 2008) but only one, Borago officinalis, is widespread. It was formerly also planted as a medicinal plant or as bee-fodder.
Molecular data support the monophyly of Borago (Selvi & al. 2006).
Literature:
Brand A. (1921) Borraginaceae-Borraginoideae, Cynoglosseae. In: Engler, A. (Ed.) Das Pflanzenreich: regni vegetablilis conspectus. W.Engelmann, Leipzig: 183 pp.
Chater A.O. (1972) Borago. In: Tutin T.G. & al. (eds.), Flora Europaea, vol. 3. Cambridge University Press, Cambridge: 109.
Jäger E.J., Ebel F., Hanelt P. & Müller G. (eds.) (2008) Rothmaler Band 5. Exkursionsflora von Deutschland. Krautige Zier- und Nutzpflanzen. Springer Verlag, Berlin: 880 p.
Richardson J.E. (2000) Borago. In: Cullen J. & al. (eds.), The European Garden Flora, vol. 6. Cambridge University Press, Cambridge: 149.
Selvi F., Coppi A. & Bigazzi M. (2006) Karyotype variation, evolution and phylogeny in Borago (Boraginaceae), with emphasis on subgenus Buglossites in the Corso-Sardinian system. Annals of Botany 98: 857-868. [available online at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2806164/]
Van Ooststroom S.J. & Reichgelt Th.J. (1961) Boraginaceae. In: van Ooststroom S.J. & al. (eds.), Flora Neerlandica, vol. 4(1). KNBV, Amsterdam: 92-140.