Boraginales Working Group (F. Luebert, L. Czechi, M.W. Frohlich, M. Gottschling, C,M, Guilliams, K.E. Hasenstab-Lehman, H.H. Hilger, J.S. Miller, M. Mittelbach, M. Nazaire, M. Nepi, D. Nocentini, D. Ober, R.G. Olmstead, F. Selvi, M.G. Simpson, K. Sutorý, B. Valdés, G.K. Walden, and M. Weigend). 2016. Familial classification of the Boraginales. Taxon 65: 502-522.
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